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The Future of Everything covers the innovation and technology transforming the way we live, work and play, with monthly issues on health, money, cities and more. This month is Education & Learning, online starting Aug. 6 and in the paper on Aug. 13.

No one has yet deciphered the brain signals that encode a complex thought, turn an idea into words or make a lasting memory. But powerful clues are emerging to drive the neurotechnology of learning, scientists say.

On the frontier of neuroscience, researchers are inventing devices to enhance learning abilities, from wearable nerve stimulators that boost mental focus to headsets for wireless brain-to-brain communication.

Artificial camouflage is the functional mimicry of the natural camouflage that can be observed in a wide range of species1,2,3. Especially, since the 1800s, there were a lot of interesting studies on camouflage technology for military purposes which increases survivability and identification of an anonymous object as belonging to a specific military force4,5. Along with previous studies on camouflage technology and natural camouflage, artificial camouflage is becoming an important subject for recently evolving technologies such as advanced soft robotics1,6,7,8 electronic skin in particular9,10,11,12. Background matching and disruptive coloration are generally claimed to be the underlying principles of camouflage covering many detailed subprinciples13, and these necessitate not only simple coloration but also a selective expression of various disruptive patterns according to the background. While the active camouflage found in nature mostly relies on the mechanical action of the muscle cells14,15,16, artificial camouflage is free from matching the actual anatomies of the color-changing animals and therefore incorporates much more diverse strategies17,18,19,20,21,22, but the dominant technology for the practical artificial camouflage at visible regime (400–700 nm wavelength), especially RGB domain, is not fully established so far. Since the most familiar and direct camouflage strategy is to exhibit a similar color to the background23,24,25, a prerequisite of an artificial camouflage at a unit device level is to convey a wide range of the visible spectrum that can be controlled and changed as occasion demands26,27,28. At the same time, the corresponding unit should be flexible and mechanically robust, especially for wearable purposes, to easily cover the target body as attachable patches without interrupting the internal structures, while being compatible with the ambient conditions and the associated movements of the wearer29,30.

System integration of the unit device into a complete artificial camouflage device, on the other hand, brings several additional issues to consider apart from the preceding requirements. Firstly, the complexity of the unit device is anticipated to be increased as the sensor and the control circuit, which are required for the autonomous retrieval and implementation of the adjacent color, are integrated into a multiplexed configuration. Simultaneously, for nontrivial body size, the concealment will be no longer effective with a single unit unless the background consists of a monotone. As a simple solution to this problem, unit devices are often laterally pixelated12,18 to achieve spatial variation in the coloration. Since its resolution is determined by the numbers of the pixelated units and their sizes, the conception of a high-resolution artificial camouflage device that incorporates densely packed arrays of individually addressable multiplexed units leads to an explosive increase in the system complexity. While on the other hand, solely from the perspective of camouflage performance, the delivery of high spatial frequency information is important for more natural concealment by articulating the texture and the patterns of the surface to mimic the microhabitats of the living environments31,32. As a result, the development of autonomous and adaptive artificial camouflage at a complete device level with natural camouflage characteristics becomes an exceptionally challenging task.

Our strategy is to combine thermochromic liquid crystal (TLC) ink with the vertically stacked multilayer silver (Ag) nanowire (NW) heaters to tackle the obstacles raised from the earlier concept and develop more practical, scalable, and high-performance artificial camouflage at a complete device level. The tunable coloration of TLC, whose reflective spectrum can be controlled over a wide range of the visible spectrum within the narrow range of temperature33,34, has been acknowledged as a potential candidate for artificial camouflage applications before21,34, but its usage has been more focused on temperature measurement35,36,37,38 owing to its high sensitivity to the temperature change. The susceptible response towards temperature is indeed an unfavorable feature for the thermal stability against changes in the external environment, but also enables compact input range and low power consumption during the operation once the temperature is accurately controlled.

Deployment of functional circuits on a 3D freeform surface is of significant interest to wearable devices on curvilinear skin/tissue surfaces or smart Internet-of-Things with sensors on 3D objects. Here we present a new fabrication strategy that can directly print functional circuits either transient or long-lasting onto freeform surfaces by intense pulsed light-induced mass transfer of zinc nanoparticles (Zn NPs). The intense pulsed light can locally raise the temperature of Zn NPs to cause evaporation. Lamination of a kirigami-patterned soft semi-transparent polymer film with Zn NPs conforming to a 3D surface results in condensation of Zn NPs to form conductive yet degradable Zn patterns onto a 3D freeform surface for constructing transient electronics. Immersing the Zn patterns into a copper sulfate or silver nitrate solution can further convert the transient device to a long-lasting device with copper or silver. Functional circuits with integrated sensors and a wireless communication component on 3D glass beakers and seashells with complex surface geometries demonstrate the viability of this manufacturing strategy.

Bio-Digital Twins, Quantum Computing, And Precision Medicine — Mr. Kazuhiro Gomi, President and CEO, and Dr. Joe Alexander, MD, Ph.D., Director, Medical and Health Informatics (MEI) Lab, NTT Research.


Mr. Kazuhiro Gomi, is President and CEO of NTT Research (https://ntt-research.com/), a division of The Nippon Telegraph and Telephone Corporation, commonly known as NTT (https://www.global.ntt/), a Japanese telecommunications company headquartered in Tokyo, Japan. Mr. Gomi has been at NTT for more than 30 years and was involved in product management/product development activities at the beginning of his tenure. In September of 2009, Mr. Gomi was first named to the Global Telecoms Business Power100 — a list of the 100 most powerful and influential people in the telecoms industry. He was the CEO of NTT America Inc. from 2010 to 2019 and also served on the Board of Directors at NTT Communications from 2012 to 2019. Mr. Gomi received a Masters of Science in Industrial Engineering from the University of Illinois at Urbana-Champaign, and a Master of Science in Electrical Engineering from Keio University, Tokyo. Mr. Gomi is a member of the board at US Japan Council, a non-profit organization aimed at fostering a better relationship between the US and Japan.

Dr. Joe Alexander, is Director of the Medical and Health Informatics (MEI) Lab at NTT Research, where he oversees the MEI Lab research in multi-scale Precision Cardiology platforms such as the cardiovascular bio-digital twin, as well as heart-on-a-chip technology, specifically aimed at developing the infrastructure for a digital replica of an individual’s heart. In addition, the MEI Lab is working on nano-and micro-scale sensors and electrodes, other organ-on-a-chip micro-fluidics technologies, as well as wearable and remote sensing to support future bio-digital twin applications.

Before coming to NTT Research, Dr. Alexander spent 18 years at Pfizer, Inc., where he had most recently served as Senior Medical Director, Global Medical Affairs, working in cardiovascular medicine, worldwide clinical imaging and measurement technologies, medical devices and pulmonary hypertension, and regularly conducting modeling and simulation research in many of these areas. He previously worked for two years at Merck, Inc. and spent eight years at Vanderbilt University, where he completed a two-year residency in internal medicine and served as a professor of medicine and biomedical engineering. Dr. Alexander obtained his M.D. and Ph.D. (in biomedical engineering) degrees at the Johns Hopkins University School of Medicine.

Sony has announced a follow-up product to the Reon Pocket, the app-controlled “wearable air conditioner” it released last year after crowdfunding it on the company’s own platform. The Reon Pocket 2 looks more or less the same as the original model, but the newly designed internals can achieve up to twice the level of heat absorption, according to Sony, resulting in more powerful cooling performance. Sony also says that it’s improved the sweat-proofing in the Reon Pocket 2, making it more suitable for light exercise situations.


Just in time for summer.

Stretchable electrodes are essential components for wearable electronics. However, the stretchability of the electrodes is often achieved with the sacrifice of electronic conductivity along with huge variation in resistance. In this work, stretchable metallic glass electrodes (MG-electrodes) that have both h.

Brain–computer interfaces (BCIs) provide bidirectional communication between the brain and output devices that translate user intent into function. Among the different brain imaging techniques used to operate BCIs, electroencephalography (EEG) constitutes the preferred method of choice, owing to its relative low cost, ease of use, high temporal resolution, and noninvasiveness. In recent years, significant progress in wearable technologies and computational intelligence has greatly enhanced the performance and capabilities of EEG-based BCIs (eBCIs) and propelled their migration out of the laboratory and into real-world environments. This rapid translation constitutes a paradigm shift in human–machine interaction that will deeply transform different industries in the near future, including healthcare and wellbeing, entertainment, security, education, and marketing. In this contribution, the state-of-the-art in wearable biosensing is reviewed, focusing on the development of novel electrode interfaces for long term and noninvasive EEG monitoring. Commercially available EEG platforms are surveyed, and a comparative analysis is presented based on the benefits and limitations they provide for eBCI development. Emerging applications in neuroscientific research and future trends related to the widespread implementation of eBCIs for medical and nonmedical uses are discussed. Finally, a commentary on the ethical, social, and legal concerns associated with this increasingly ubiquitous technology is provided, as well as general recommendations to address key issues related to mainstream consumer adoption.

A new wearable brain-machine interface (BMI) system could improve the quality of life for people with motor dysfunction or paralysis, even those struggling with locked-in syndrome—when a person is fully conscious but unable to move or communicate.

A multi-institutional, international team of researchers led by the lab of Woon-Hong Yeo at the Georgia Institute of Technology combined wireless soft scalp electronics and virtual reality in a BMI system that allows the user to imagine an action and wirelessly control a wheelchair or robotic arm.

The team, which included researchers from the University of Kent (United Kingdom) and Yonsei University (Republic of Korea), describes the new motor imagery-based BMI system this month in the journal Advanced Science.

Chemical engineer Zhenan Bao and her team of researchers at Stanford have spent nearly two decades trying to develop skin-like integrated circuits that can be stretched, folded, bent and twisted — working all the while — and then snap back without fail, every time. Such circuits presage a day of wearable and implantable products, but one hurdle has always stood in the way.

Namely, “How does one produce a completely new technology in quantities great enough to make commercialization possible?” Bao said. Bao and team think they have a solution. In a new study, the group describes how they have printed stretchable-yet-durable integrated circuits on rubbery, skin-like materials, using the same equipment designed to make solid silicon chips — an accomplishment that could ease the transition to commercialization by switching foundries that today make rigid circuits to producing stretchable ones.


Stanford researchers show how to print dense transistor arrays on skin-like materials to create stretchable circuits that flex with the body to perform applications yet to be imagined.