Connect with us

Nano Technology

An easy-to-use platform is a gateway to AI in microscopy

Avatar

Published

on

Home > Press > An easy-to-use platform is a gateway to AI in microscopy

Example illustrating how AI via ZeroCostDL4Mic can be used to detect the nucleus of cancer cells from microscopy images. Upper picture: Original microscopy image. Lower picture: Image where each detected cancer cell has a different colour. Pictures: Guillaume Jacquemet.
Example illustrating how AI via ZeroCostDL4Mic can be used to detect the nucleus of cancer cells from microscopy images. Upper picture: Original microscopy image. Lower picture: Image where each detected cancer cell has a different colour. Pictures: Guillaume Jacquemet.

Abstract:
Software using artificial intelligence, AI, is revolutionizing how microscopy images are analysed. For instance, AI can be used to detect features in images (i.e., tumours in biopsy samples) or improve the quality of images by removing unwanted noise. However, non-experts continue to find AI technologies difficult to use.

An easy-to-use platform is a gateway to AI in microscopy


Turku, Finland | Posted on April 23rd, 2021

In the article “Democratising deep learning for microscopy with ZeroCostDL4Mic”, published in Nature Communications on 15 April 2021, researchers describe a platform called ZeroCostDL4Mic, which makes these AI technologies accessible to everyone.

“The key novelty is that ZeroCostDL4Mic runs in the cloud for free and does not require users to have any coding experience or advanced computational skills. Effectively, it runs on any computer that has a web browser,” says Guillaume Jacquemet, Senior Researcher in Cell Biology at Åbo Akademi University.

Over the last 400 years, microscopes have allowed mankind to observe objects that are otherwise too small to be seen with the naked eye. Today, microscopy is a leading technology used worldwide to perform not only research but also diagnostics.

Modern microscopes are directly connected to digital cameras, leading to the acquisition of hundreds to thousands of images per sample. These images need to be processed on a computer to gain meaningful data, which is a huge undertaking.

To help with the number of images, Jacquemet and his colleagues have used AI to train a machine to do the work. In practice, ZeroCostDL4Mic is a collection of self-explanatory notebooks for Google Colab, featuring an easy-to-use graphical user interface.

“We believe that ZeroCostDL4Mic will acts as ‘a gateway drug’ for AI, luring users to explore these new technologies that will transform biomedical research and diagnostics in the decades to come,” says Jacquemet.

###

The development of the ZeroCostDL4Mic platform was coordinated by Guillaume Jacquemet’s (Åbo Akademi University, Turku, Finland) and Ricardo Henriques’ laboratories (Instituto Gulbenkian de Ciência, Oeiras, Portugal). It involved a large international consortium encompassing 12 laboratories, spread across nine countries and two continents.

####

For more information, please click here

Contacts:
Guillaume Jacquemet
358-503-235-606

@aboakademi

Copyright © Åbo Akademi University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

The article “Democratising deep learning for microscopy with ZeroCostDL4Mic” is published open access on:

Related News Press

News and information

GLOBALFOUNDRIES Moves Corporate Headquarters to its Most Advanced Semiconductor Manufacturing Facility in New York April 27th, 2021

Researchers realize high-efficiency frequency conversion on integrated photonic chip April 23rd, 2021

Silver ions hurry up, then wait as they disperse: Rice chemists show ions’ staged release from gold-silver nanoparticles could be useful property April 23rd, 2021

Synthetic gelatin-like material mimics lobster underbelly’s stretch and strength: The membrane’s structure could provide a blueprint for robust artificial tissues April 23rd, 2021

Imaging

Researchers realize high-efficiency frequency conversion on integrated photonic chip April 23rd, 2021

Possible Futures

GLOBALFOUNDRIES Moves Corporate Headquarters to its Most Advanced Semiconductor Manufacturing Facility in New York April 27th, 2021

With new optical device, engineers can fine tune the color of light April 23rd, 2021

Silver ions hurry up, then wait as they disperse: Rice chemists show ions’ staged release from gold-silver nanoparticles could be useful property April 23rd, 2021

Synthetic gelatin-like material mimics lobster underbelly’s stretch and strength: The membrane’s structure could provide a blueprint for robust artificial tissues April 23rd, 2021

Discoveries

Quantum steering for more precise measurements April 23rd, 2021

With new optical device, engineers can fine tune the color of light April 23rd, 2021

Silver ions hurry up, then wait as they disperse: Rice chemists show ions’ staged release from gold-silver nanoparticles could be useful property April 23rd, 2021

Synthetic gelatin-like material mimics lobster underbelly’s stretch and strength: The membrane’s structure could provide a blueprint for robust artificial tissues April 23rd, 2021

Announcements

GLOBALFOUNDRIES Moves Corporate Headquarters to its Most Advanced Semiconductor Manufacturing Facility in New York April 27th, 2021

With new optical device, engineers can fine tune the color of light April 23rd, 2021

Silver ions hurry up, then wait as they disperse: Rice chemists show ions’ staged release from gold-silver nanoparticles could be useful property April 23rd, 2021

Synthetic gelatin-like material mimics lobster underbelly’s stretch and strength: The membrane’s structure could provide a blueprint for robust artificial tissues April 23rd, 2021

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Researchers realize high-efficiency frequency conversion on integrated photonic chip April 23rd, 2021

Quantum steering for more precise measurements April 23rd, 2021

With new optical device, engineers can fine tune the color of light April 23rd, 2021

Synthetic gelatin-like material mimics lobster underbelly’s stretch and strength: The membrane’s structure could provide a blueprint for robust artificial tissues April 23rd, 2021

Tools

Researchers realize high-efficiency frequency conversion on integrated photonic chip April 23rd, 2021

JEOL USA Welcomes New Managing Director, Hidetaka Sawada April 19th, 2021

New 3D-Bioprinter + Bioink Use Living Cells Straight From Culture Plate: Cell models mimicking natural tissue topography herald new era for biomedical research April 13th, 2021

Knowledge and Power: Oxford Instruments Plasma Technology and LayTec join forces to provide critical front end processing solutions for the production of compound semiconductor devices April 7th, 2021

Coinsmart. Beste Bitcoin-Börse in Europa
Source: http://www.nanotech-now.com/news.cgi?story_id=56662

Nano Technology

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease

Avatar

Published

on

Home > Press > With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease

A new system uses UV light projected onto objects coated with light-activated dye to alter the reflective properties of the dye, creating images in minutes. CREDIT
Image courtesy of Michael Wessley, Stefanie Mueller, et al
A new system uses UV light projected onto objects coated with light-activated dye to alter the reflective properties of the dye, creating images in minutes. CREDIT
Image courtesy of Michael Wessley, Stefanie Mueller, et al

Abstract:
When was the last time you repainted your car? Redesigned your coffee mug collection? Gave your shoes a colorful facelift?

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease


Cambridge, MA | Posted on May 6th, 2021

You likely answered: never, never, and never. You might consider these arduous tasks not worth the effort. But a new color-shifting “programmable matter” system could change that with a zap of light.

MIT researchers have developed a way to rapidly update imagery on object surfaces. The system, dubbed “ChromoUpdate” pairs an ultraviolet (UV) light projector with items coated in light-activated dye. The projected light alters the reflective properties of the dye, creating colorful new images in just a few minutes. The advance could accelerate product development, enabling product designers to churn through prototypes without getting bogged down with painting or printing.

ChromoUpdate “takes advantage of fast programming cycles — things that wouldn’t have been possible before,” says Michael Wessley, the study’s lead author and a postdoc in MIT’s Computer Science and Artificial Intelligence Laboratory.

The research will be presented at the ACM Conference on Human Factors in Computing Systems this month. Wessely’s co-authors include his advisor, Professor Stefanie Mueller, as well as postdoc Yuhua Jin, recent graduate Cattalyya Nuengsigkapian ’19, MNG ’20, visiting master’s student Aleksei Kashapov, postdoc Isabel Qamar, and Professor Dzmitry Tsetserukou of the Skolkovo Institute of Science and Technology.

ChromoUpdate builds on the researchers’ previous programmable matter system, called PhotoChromeleon. That method was “the first to show that we can have high-resolution, multicolor textures that we can just reprogram over and over again,” says Wessely. PhotoChromeleon used a lacquer-like ink comprising cyan, magenta, and yellow dyes. The user covered an object with a layer of the ink, which could then be reprogrammed using light. First, UV light from an LED was shone on the ink, fully saturating the dyes. Next, the dyes were selectively desaturated with a visible light projector, bringing each pixel to its desired color and leaving behind the final image. PhotoChromeleon was innovative, but it was sluggish. It took about 20 minutes to update an image. “We can accelerate the process,” says Wessely.

They achieved that with ChromoUpdate, by fine-tuning the UV saturation process. Rather than using an LED, which uniformly blasts the entire surface, ChromoUpdate uses a UV projector that can vary light levels across the surface. So, the operator has pixel-level control over saturation levels. “We can saturate the material locally in the exact pattern we want,” says Wessely. That saves time — someone designing a car’s exterior might simply want to add racing stripes to an otherwise completed design. ChromoUpdate lets them do just that, without erasing and reprojecting the entire exterior.

This selective saturation procedure allows designers to create a black-and-white preview of a design in seconds, or a full-color prototype in minutes. That means they could try out dozens of designs in a single work session, a previously unattainable feat. “You can actually have a physical prototype to see if your design really works,” says Wessely. “You can see how it looks when sunlight shines on it or when shadows are cast. It’s not enough just to do this on a computer.”

That speed also means ChromoUpdate could be used for providing real-time notifications without relying on screens. “One example is your coffee mug,” says Wessely. “You put your mug in our projector system and program it to show your daily schedule. And it updates itself directly when a new meeting comes in for that day, or it shows you the weather forecast.”

Wessely hopes to keep improving the technology. At present, the light-activated ink is specialized for smooth, rigid surfaces like mugs, phone cases, or cars. But the researchers are working toward flexible, programmable textiles. “We’re looking at methods to dye fabrics and potentially use light-emitting fibers,” says Wessely. “So, we could have clothing — t-shirts and shoes and all that stuff — that can reprogram itself.”

The researchers have partnered with a group of textile makers in Paris to see how ChomoUpdate can be incorporated into the design process.

###

This research was funded, in part, by Ford.

Written by Daniel Ackerman, MIT News Office

####

For more information, please click here

Contacts:
Abby Abazorius
617-253-2709

@MIT

Copyright © Massachusetts Institute of Technology

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Paper: “ChromoUpdate: Locally Updating Photochromatic Multi-Color Textures for Fast Design Iterations”:

Related News Press

News and information

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

180 Degree Capital Corp. Reports +14.2% Growth in Q1 2021, $10.60 Net Asset Value Per Share as of March 31, 2021, and Developments From Q2 2021 May 11th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Possible Futures

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Discoveries

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Announcements

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

180 Degree Capital Corp. Reports +14.2% Growth in Q1 2021, $10.60 Net Asset Value Per Share as of March 31, 2021, and Developments From Q2 2021 May 11th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Printing/Lithography/Inkjet/Inks/Bio-printing/Dyes

New 3D-Bioprinter + Bioink Use Living Cells Straight From Culture Plate: Cell models mimicking natural tissue topography herald new era for biomedical research April 13th, 2021

Weak force has strong impact on nanosheets: Rice lab finds van der Waals force can deform nanoscale silver for optics, catalytic use December 15th, 2020

Materials scientists learn how to make liquid crystal shape-shift September 25th, 2020

InnovationLab and Heidelberg collaborate on industrial production of printed and organic sensors: Firms achieve volume and price breakthroughs in manufacture of printed sensors August 19th, 2020

Coinsmart. Beste Bitcoin-Börse in Europa
Source: http://www.nanotech-now.com/news.cgi?story_id=56676

Continue Reading

Nano Technology

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal

Avatar

Published

on

Home > Press > Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal

(a) Schematic structure of polarized light detector. (b) Photoconductivity parallel and perpendicular to the interface. (c) Photoconductivity anisotropy versus excitation power. (d) Angle-resolved photocurrent as a function of polarization angle measured at 405 nm under zero bias. (e) Experimental polarization ratios of some reported polarized light detectors. (f) Angle-dependent photocurrent of the present device measured at different temperature. CREDIT
@Science China Press
(a) Schematic structure of polarized light detector. (b) Photoconductivity parallel and perpendicular to the interface. (c) Photoconductivity anisotropy versus excitation power. (d) Angle-resolved photocurrent as a function of polarization angle measured at 405 nm under zero bias. (e) Experimental polarization ratios of some reported polarized light detectors. (f) Angle-dependent photocurrent of the present device measured at different temperature. CREDIT
@Science China Press

Abstract:
Polarization-sensitive photodetectors, based on anisotropic semiconductors, have exhibited wide advantages in specialized applications, such as astronomy, remote sensing, and polarization-division multiplexing. For the active layer of polarization-sensitive photodetectors, recent researches focus on two-dimensional (2D) organic-inorganic hybrid perovskites, where inorganic slabs and organic spacers are alternatively arranged in parallel layered structures. Compared with inorganic 2D materials, importantly, the solution accessibility of hybrid perovskites makes it possible to obtain their large crystals at low cost, offering exciting opportunities to incorporate crystal out-of-plane anisotropy for polarization-sensitive photodetection. However, limited by the absorption anisotropy of the material structure, polarization sensitivity of such a device remains low. Thus, a new strategy to design 2D hybrid perovskites with large anisotropy for polarization-sensitive photodetection is urgently needed.

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal


Beijing, China | Posted on May 4th, 2021

Heterostructures provide a clue to address this challenge. On the one hand, construction of heterostructures can improve the optical absorption and free-carrier densities of the composite. On the other hand, the built-in electric field at the heterojunction can spatially separate the photogenerated electron-hole pairs, significantly reducing the recombination rate and further enhancing the sensitivity for polarization-sensitive photodetectors. Therefore, constructing single-crystalline heterostructures of anisotropic 2D hybrid perovskites would realize devices with high polarization sensitivity.

In a new research article published in the Beijing-based National Science Review, scientists at the Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences create a 2D/3D heterostructure crystal, combining the 2D hybrid perovskite with its 3D counterpart; and achieve polarization-sensitive photodetection with record-high performance. Different from the previous work, devices based on the heterostructure crystal deliberately leverage the anisotropy of 2D perovskite and the built-in electric field of heterostructure, permitting the first demonstration of a perovskite heterostructure-based polarization-sensitive photodetector that operates without the need for external energy supply. Notably, the polarization sensitivity of the device surpasses all of the reported perovskite-based devices; and can be competitive with conventional inorganic heterostructure-based photodetectors. Further studies disclose that the built-in electric field formed at the heterojunction can efficiently separate those photogenerated excitons, reducing their recombination rate and therefore enhancing the performance of the resulting polarization-sensitive photodetector.

“High polarization sensitivity is successfully achieved in self-driven polarization-sensitive photodetector based on a single-crystalline 2D/3D hybrid perovskite heterostructure which is grown via a delicate solution method,” the author claims, “This innovative study broadens the choice of materials that can be used for high-performance polarization-sensitive photodetectors, and correspondingly, the design strategies.”

###

This research received funding from the the National Natural Science Foundation of China, the Key Research Program of Frontier Sciences of the Chinese Academy of Sciences (CAS), the Natural Science Foundation of Fujian Province, the Strategic Priority Research Program of the CAS and the Youth Innovation Promotion of CAS.

####

About Science China Press
The National Science Review is the first comprehensive scholarly journal released in English in China that is aimed at linking the country’s rapidly advancing community of scientists with the global frontiers of science and technology. The journal also aims to shine a worldwide spotlight on scientific research advances across China.

For more information, please click here

Contacts:
Junhua Luo

Copyright © Science China Press

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Xinyuan Zhang, Lina Li, Chengmin Ji, Xitao Liu, Qing Li, Kun Zhang, Yu Peng, Maochun Hong and Junhua Luo

Related News Press

News and information

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

180 Degree Capital Corp. Reports +14.2% Growth in Q1 2021, $10.60 Net Asset Value Per Share as of March 31, 2021, and Developments From Q2 2021 May 11th, 2021

Graphene key for novel hardware security May 10th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

2 Dimensional Materials

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Better metric for thermoelectric materials means better design strategies: New quantity helps experimentally classify dimensionality of thermoelectric materials April 15th, 2021

Better metric for thermoelectric materials means better design strategies: New quantity helps experimentally classify dimensionality of thermoelectric materials April 15th, 2021

Perovskites

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Less innocent than it looks: Hydrogen in hybrid perovskites: Researchers identify the defect that limits solar-cell performance April 30th, 2021

Possible Futures

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

Graphene key for novel hardware security May 10th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Sensors

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Researchers realize high-efficiency frequency conversion on integrated photonic chip April 23rd, 2021

Wearable sensors that detect gas leaks April 19th, 2021

Discovery could help lengthen lifespan of electronic devices: The research could lead to electronics being designed with better endurance April 9th, 2021

Discoveries

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

Graphene key for novel hardware security May 10th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Announcements

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

180 Degree Capital Corp. Reports +14.2% Growth in Q1 2021, $10.60 Net Asset Value Per Share as of March 31, 2021, and Developments From Q2 2021 May 11th, 2021

Graphene key for novel hardware security May 10th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

Graphene key for novel hardware security May 10th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Aerospace/Space

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

A silver lining for extreme electronics April 30th, 2021

Expanding the freedom of design: powder coating on FRP thanks to conductive gelcoats with graphene nanotubes March 3rd, 2021

Islands without structure inside metal alloys could lead to tougher materials: These high-entropy alloys could lead to better technologies in transportation, energy and denfense January 29th, 2021

Coinsmart. Beste Bitcoin-Börse in Europa
Source: http://www.nanotech-now.com/news.cgi?story_id=56674

Continue Reading

Nano Technology

Graphene key for novel hardware security

Avatar

Published

on

Home > Press > Graphene key for novel hardware security

A team of Penn State researchers has developed a new hardware security device that takes advantage of microstructure variations to generate secure keys. CREDIT
Jennifer McCann,Penn State
A team of Penn State researchers has developed a new hardware security device that takes advantage of microstructure variations to generate secure keys. CREDIT
Jennifer McCann,Penn State

Abstract:
As more private data is stored and shared digitally, researchers are exploring new ways to protect data against attacks from bad actors. Current silicon technology exploits microscopic differences between computing components to create secure keys, but artificial intelligence (AI) techniques can be used to predict these keys and gain access to data. Now, Penn State researchers have designed a way to make the encrypted keys harder to crack.

Graphene key for novel hardware security


University Park, PA | Posted on May 10th, 2021

Led by Saptarshi Das, assistant professor of engineering science and mechanics, the researchers used graphene — a layer of carbon one atom thick — to develop a novel low-power, scalable, reconfigurable hardware security device with significant resilience to AI attacks. They published their findings in Nature Electronics today (May 10).

“There has been more and more breaching of private data recently,” Das said. “We developed a new hardware security device that could eventually be implemented to protect these data across industries and sectors.”

The device, called a physically unclonable function (PUF), is the first demonstration of a graphene-based PUF, according to the researchers. The physical and electrical properties of graphene, as well as the fabrication process, make the novel PUF more energy-efficient, scalable, and secure against AI attacks that pose a threat to silicon PUFs.

The team first fabricated nearly 2,000 identical graphene transistors, which switch current on and off in a circuit. Despite their structural similarity, the transistors’ electrical conductivity varied due to the inherent randomness arising from the production process. While such variation is typically a drawback for electronic devices, it’s a desirable quality for a PUF not shared by silicon-based devices.

After the graphene transistors were implemented into PUFs, the researchers modeled their characteristics to create a simulation of 64 million graphene-based PUFs. To test the PUFs’ security, Das and his team used machine learning, a method that allows AI to study a system and find new patterns. The researchers trained the AI with the graphene PUF simulation data, testing to see if the AI could use this training to make predictions about the encrypted data and reveal system insecurities.

“Neural networks are very good at developing a model from a huge amount of data, even if humans are unable to,” Das said. “We found that AI could not develop a model, and it was not possible for the encryption process to be learned.”

This resistance to machine learning attacks makes the PUF more secure because potential hackers could not use breached data to reverse engineer a device for future exploitation, Das said. Even if the key could be predicted, the graphene PUF could generate a new key through a reconfiguration process requiring no additional hardware or replacement of components.

“Normally, once a system’s security has been compromised, it is permanently compromised,” said Akhil Dodda, an engineering science and mechanics graduate student conducting research under Das’s mentorship. “We developed a scheme where such a compromised system could be reconfigured and used again, adding tamper resistance as another security feature.”

With these features, as well as the capacity to operate across a wide range of temperatures, the graphene-based PUF could be used in a variety of applications. Further research can open pathways for its use in flexible and printable electronics, household devices and more.

###

Paper co-authors include Dodda, Shiva Subbulakshmi Radhakrishnan, Thomas Schranghamer and Drew Buzzell from Penn State; and Parijat Sengupta from Purdue University. Das is also affiliated with the Penn State Department of Materials Science and Engineering and the Materials Research Institute.

####

For more information, please click here

Contacts:
Megan Lakatos
814-865-5544

@penn_state

Copyright © Penn State

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

RELATED JOURNAL ARTICLE:

Related News Press

News and information

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

180 Degree Capital Corp. Reports +14.2% Growth in Q1 2021, $10.60 Net Asset Value Per Share as of March 31, 2021, and Developments From Q2 2021 May 11th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Graphene/ Graphite

Oregon scientists create mechanism to precisely control soundwaves in metamaterials: Theoretical modeling shows that designer materials incorporating drum-like membranes allow precise stoppage and reversal of sound pulses April 16th, 2021

Better metric for thermoelectric materials means better design strategies: New quantity helps experimentally classify dimensionality of thermoelectric materials April 15th, 2021

Better metric for thermoelectric materials means better design strategies: New quantity helps experimentally classify dimensionality of thermoelectric materials April 15th, 2021

Chile coating and composite industry makes leap forward leveraging graphene nanotube solutions April 9th, 2021

Law enforcement/Anti-Counterfeiting/Security/Loss prevention

180 Degree Capital Corp. Issues Second Open Letter to the Board and Shareholders of Enzo Biochem, Inc. March 26th, 2021

GLOBALFOUNDRIES Announces Industry-Leading GF SHIELD Program to Further Safeguard Customer Data and IP: GF embraces experience of manufacturing the world’s most secure semiconductor solutions for the defense and aerospace industry, and extends these world-class security capabilit October 1st, 2020

Painting With Light: Novel Nanopillars Precisely Control the Color and Intensity of Transmitted Light September 4th, 2020

Self-powered X-ray detector to revolutionize imaging for medicine, security and research: 2D perovskite thin films boost sensitivity 100-fold compared to conventional detectors, require no outside power source, and enable low-dose dental and medical images April 12th, 2020

Possible Futures

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Discoveries

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Announcements

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

180 Degree Capital Corp. Reports +14.2% Growth in Q1 2021, $10.60 Net Asset Value Per Share as of March 31, 2021, and Developments From Q2 2021 May 11th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease May 6th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Artificial Intelligence

With new optical device, engineers can fine tune the color of light April 23rd, 2021

New study investigates photonics for artificial intelligence and neuromorphic computing February 1st, 2021

CEA-Leti Reports Machine-Learning Breakthrough That Opens Way to Edge Learning: Article in Nature Electronics Details Method that Takes Advantage of RRAM Non-Idealities To Create Intelligent Systems that Have Potential Medical-Diagnostic Applications January 20th, 2021

New super-resolution method reveals fine details without constantly needing to zoom in August 12th, 2020

Research partnerships

Silver ions hurry up, then wait as they disperse: Rice chemists show ions’ staged release from gold-silver nanoparticles could be useful property April 23rd, 2021

TPU scientists offer new plasmon energy-based method to remove CO2 from atmosphere March 19th, 2021

Quantum quirk yields giant magnetic effect, where none should exist: Study opens window into the landscape of extreme topological matter March 1st, 2021

Researchers improve efficiency of next-generation solar cell material: Reducing internal losses could pave the way to low-cost perovskite-based photovoltaics that match silicon cells’ output February 26th, 2021

Coinsmart. Beste Bitcoin-Börse in Europa
Source: http://www.nanotech-now.com/news.cgi?story_id=56677

Continue Reading

Nano Technology

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease

Avatar

Published

on

Home > Press > With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease

A new system uses UV light projected onto objects coated with light-activated dye to alter the reflective properties of the dye, creating images in minutes. CREDIT
Image courtesy of Michael Wessley, Stefanie Mueller, et al
A new system uses UV light projected onto objects coated with light-activated dye to alter the reflective properties of the dye, creating images in minutes. CREDIT
Image courtesy of Michael Wessley, Stefanie Mueller, et al

Abstract:
When was the last time you repainted your car? Redesigned your coffee mug collection? Gave your shoes a colorful facelift?

With a zap of light, system switches objects’ colors and patterns: “Programmable matter” technique could enable product designers to churn out prototypes with ease


Cambridge, MA | Posted on May 6th, 2021

You likely answered: never, never, and never. You might consider these arduous tasks not worth the effort. But a new color-shifting “programmable matter” system could change that with a zap of light.

MIT researchers have developed a way to rapidly update imagery on object surfaces. The system, dubbed “ChromoUpdate” pairs an ultraviolet (UV) light projector with items coated in light-activated dye. The projected light alters the reflective properties of the dye, creating colorful new images in just a few minutes. The advance could accelerate product development, enabling product designers to churn through prototypes without getting bogged down with painting or printing.

ChromoUpdate “takes advantage of fast programming cycles — things that wouldn’t have been possible before,” says Michael Wessley, the study’s lead author and a postdoc in MIT’s Computer Science and Artificial Intelligence Laboratory.

The research will be presented at the ACM Conference on Human Factors in Computing Systems this month. Wessely’s co-authors include his advisor, Professor Stefanie Mueller, as well as postdoc Yuhua Jin, recent graduate Cattalyya Nuengsigkapian ’19, MNG ’20, visiting master’s student Aleksei Kashapov, postdoc Isabel Qamar, and Professor Dzmitry Tsetserukou of the Skolkovo Institute of Science and Technology.

ChromoUpdate builds on the researchers’ previous programmable matter system, called PhotoChromeleon. That method was “the first to show that we can have high-resolution, multicolor textures that we can just reprogram over and over again,” says Wessely. PhotoChromeleon used a lacquer-like ink comprising cyan, magenta, and yellow dyes. The user covered an object with a layer of the ink, which could then be reprogrammed using light. First, UV light from an LED was shone on the ink, fully saturating the dyes. Next, the dyes were selectively desaturated with a visible light projector, bringing each pixel to its desired color and leaving behind the final image. PhotoChromeleon was innovative, but it was sluggish. It took about 20 minutes to update an image. “We can accelerate the process,” says Wessely.

They achieved that with ChromoUpdate, by fine-tuning the UV saturation process. Rather than using an LED, which uniformly blasts the entire surface, ChromoUpdate uses a UV projector that can vary light levels across the surface. So, the operator has pixel-level control over saturation levels. “We can saturate the material locally in the exact pattern we want,” says Wessely. That saves time — someone designing a car’s exterior might simply want to add racing stripes to an otherwise completed design. ChromoUpdate lets them do just that, without erasing and reprojecting the entire exterior.

This selective saturation procedure allows designers to create a black-and-white preview of a design in seconds, or a full-color prototype in minutes. That means they could try out dozens of designs in a single work session, a previously unattainable feat. “You can actually have a physical prototype to see if your design really works,” says Wessely. “You can see how it looks when sunlight shines on it or when shadows are cast. It’s not enough just to do this on a computer.”

That speed also means ChromoUpdate could be used for providing real-time notifications without relying on screens. “One example is your coffee mug,” says Wessely. “You put your mug in our projector system and program it to show your daily schedule. And it updates itself directly when a new meeting comes in for that day, or it shows you the weather forecast.”

Wessely hopes to keep improving the technology. At present, the light-activated ink is specialized for smooth, rigid surfaces like mugs, phone cases, or cars. But the researchers are working toward flexible, programmable textiles. “We’re looking at methods to dye fabrics and potentially use light-emitting fibers,” says Wessely. “So, we could have clothing — t-shirts and shoes and all that stuff — that can reprogram itself.”

The researchers have partnered with a group of textile makers in Paris to see how ChomoUpdate can be incorporated into the design process.

###

This research was funded, in part, by Ford.

Written by Daniel Ackerman, MIT News Office

####

For more information, please click here

Contacts:
Abby Abazorius
617-253-2709

@MIT

Copyright © Massachusetts Institute of Technology

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Paper: “ChromoUpdate: Locally Updating Photochromatic Multi-Color Textures for Fast Design Iterations”:

Related News Press

News and information

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

180 Degree Capital Corp. Reports +14.2% Growth in Q1 2021, $10.60 Net Asset Value Per Share as of March 31, 2021, and Developments From Q2 2021 May 11th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Possible Futures

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Discoveries

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Announcements

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

180 Degree Capital Corp. Reports +14.2% Growth in Q1 2021, $10.60 Net Asset Value Per Share as of March 31, 2021, and Developments From Q2 2021 May 11th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Tiny, Wireless, Injectable Chips Use Ultrasound to Monitor Body Processes May 12th, 2021

Graphene key for novel hardware security May 10th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Polarization-sensitive photodetection using 2D/3D perovskite heterostructure crystal May 4th, 2021

Printing/Lithography/Inkjet/Inks/Bio-printing/Dyes

New 3D-Bioprinter + Bioink Use Living Cells Straight From Culture Plate: Cell models mimicking natural tissue topography herald new era for biomedical research April 13th, 2021

Weak force has strong impact on nanosheets: Rice lab finds van der Waals force can deform nanoscale silver for optics, catalytic use December 15th, 2020

Materials scientists learn how to make liquid crystal shape-shift September 25th, 2020

InnovationLab and Heidelberg collaborate on industrial production of printed and organic sensors: Firms achieve volume and price breakthroughs in manufacture of printed sensors August 19th, 2020

Coinsmart. Beste Bitcoin-Börse in Europa
Source: http://www.nanotech-now.com/news.cgi?story_id=56676

Continue Reading
Aviation5 days ago

JetBlue Hits Back At Eastern Airlines On Ecuador Flights

Blockchain5 days ago

“Privacy is a ‘Privilege’ that Users Ought to Cherish”: Elena Nadoliksi

AI2 days ago

Build a cognitive search and a health knowledge graph using AWS AI services

Blockchain23 hours ago

Shiba Inu: Know How to Buy the New Dogecoin Rival

Energy3 days ago

ONE Gas to Participate in American Gas Association Financial Forum

Blockchain2 days ago

Meme Coins Craze Attracting Money Behind Fall of Bitcoin

SaaS5 days ago

SaaS5 days ago

Blockchain4 days ago

Yieldly announces IDO

Esports3 days ago

Pokémon Go Special Weekend announced, features global partners like Verizon, 7-Eleven Mexico, and Yoshinoya

Fintech3 days ago

Credit Karma Launches Instant Karma Rewards

Blockchain5 days ago

Opimas estimates that over US$190 billion worth of Bitcoin is currently at risk due to subpar safekeeping

Blockchain2 days ago

Sentiment Flippening: Why This Bitcoin Expert Doesn’t Own Ethereum

SaaS5 days ago

Esports2 days ago

Valve launches Supporters Clubs, allows fans to directly support Dota Pro Circuit teams

Business Insider3 days ago

Bella Aurora launches its first treatment for white patches on the skin

Esports1 day ago

‘Destroy Sandcastles’ in Fortnite Locations Explained

Esports4 days ago

5 Best Mid Laners in League of Legends Patch 11.10

Cyber Security4 days ago

Top Tips On Why And How To Get A Cyber Security Degree ?

Esports3 days ago

How to download PUBG Mobile’s patch 1.4 update

Trending