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3. A wireless haptic interface for programmable patterns of touch across large areas of the skin

Author

Jung, Yei Hwan, Yoo, Jae-Young, Vázquez-Guardado, Abraham, Kim, Jae-Hwan, Kim, Jin-Tae, Luan, Haiwen, Park, Minsu, Lim, Jaeman, Shin, Hee-Sup, Su, Chun-Ju, Schloen, Robert, Trueb, Jacob, Avila, Raudel, Chang, Jan-Kai, Yang, Da Som, Park, Yoonseok, Ryu, Hanjun, Yoon, Hong-Joon, Lee, Geumbee, Jeong, Hyoyeong, Kim, Jong Uk, Akhtar, Aadeel, Cornman, Jesse, Kim, Tae-il, Huang, Yonggang, and Rogers, John A.

Published
2022
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5. Wireless, soft electronics for rapid, multisensor measurements of hydration levels in healthy and diseased skin

Author

Kwon, Kyeongha, Wang, Heling, Lim, Jaeman, Chun, Keum San, Jang, Hokyung, Yoo, Injae, Wu, Derek, Chen, Alyssa Jie, Gu, Carol Ge, Lipschultz, Lindsay, Kim, Jong Uk, Kim, Jihye, Jeong, Hyoyoung, Luan, Haiwen, Park, Yoonseok, Su, Chun-Ju, Ishida, Yui, Madhvapathy, Surabhi R., Ikoma, Akihiko, Kwak, Jean Won, Yang, Da Som, Banks, Anthony, Xu, Shuai, Huang, Yonggang, Chang, Jan-Kai, and Rogers, John A.

Published
2021

7. Author Correction: A wireless haptic interface for programmable patterns of touch across large areas of the skin

Author

Jung, Yei Hwan, Yoo, Jae-Young, Vázquez-Guardado, Abraham, Kim, Jae-Hwan, Kim, Jin-Tae, Luan, Haiwen, Park, Minsu, Lim, Jaeman, Shin, Hee-Sup, Su, Chun-Ju, Schloen, Robert, Trueb, Jacob, Avila, Raudel, Chang, Jan-Kai, Yang, Da Som, Park, Yoonseok, Ryu, Hanjun, Yoon, Hong-Joon, Lee, Geumbee, Jeong, Hyoyeong, Kim, Jong Uk, Akhtar, Aadeel, Cornman, Jesse, Kim, Tae-il, Huang, Yonggang, and Rogers, John A.

Published
2022
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9. Thermoplastic Elastomers for Wireless, Skin‐Interfaced Electronic, and Microfluidic Devices (Adv. Mater. Technol. 19/2023)

Author

Wu, Yunyun, primary, Liu, Claire, additional, Lapiere, Mia, additional, Ciatti, Joanna L., additional, Yang, Da Som, additional, Berkovich, Jaime, additional, Model, Jeffrey B., additional, Banks, Anthony, additional, Ghaffari, Roozbeh, additional, Chang, Jan‐Kai, additional, Nuzzo, Ralph G., additional, and Rogers, John A., additional

Published
2023
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11. Multifunctional Materials Strategies for Enhanced Safety of Wireless, Skin‐Interfaced Bioelectronic Devices (Adv. Funct. Mater. 34/2023)

Author

Liu, Claire, primary, Kim, Jin‐Tae, additional, Yang, Da Som, additional, Cho, Donghwi, additional, Yoo, Seonggwang, additional, Madhvapathy, Surabhi R., additional, Jeong, Hyoyoung, additional, Yang, Tianyu, additional, Luan, Haiwen, additional, Avila, Raudel, additional, Park, Jihun, additional, Wu, Yunyun, additional, Bryant, Kennedy, additional, Cho, Min, additional, Lee, JiYong, additional, Kwak, Jay Young, additional, Ryu, WonHyoung, additional, Huang, Yonggang, additional, Nuzzo, Ralph G., additional, and Rogers, John A., additional

Published
2023
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12. Multifunctional Materials Strategies for Enhanced Safety of Wireless, Skin-Interfaced Bioelectronic Devices

Author

Liu, Claire, primary, Kim, Jin-Tae, additional, Yang, Da Som, additional, Cho, Donghwi, additional, Yoo, Seonggwang, additional, Madhvapathy, Surabhi R., additional, Jeong, Hyoyoung, additional, Yang, Tianyu, additional, Luan, Haiwen, additional, Avila, Raudel, additional, Park, Jihun, additional, Wu, Yunyun, additional, Bryant, Kennedy, additional, Cho, Min, additional, Lee, JiYong, additional, Kwak, Jay, additional, Ryu, WonHyoung, additional, Huang, Yonggang, additional, Nuzzo, Ralph G., additional, and Rogers, John A., additional

Published
2023
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13. Thermoplastic Elastomers for Wireless, Skin-Interfaced Electronic, and Microfluidic Devices

Author

Wu, Yunyun, Liu, Claire, Lapiere, Mia, Ciatti, Joanna L., Yang, Da Som, Berkovich, Jaime, Model, Jeffrey B., Banks, Anthony, Ghaffari, Roozbeh, Chang, Jan Kai, Nuzzo, Ralph G., Rogers, John A., Wu, Yunyun, Liu, Claire, Lapiere, Mia, Ciatti, Joanna L., Yang, Da Som, Berkovich, Jaime, Model, Jeffrey B., Banks, Anthony, Ghaffari, Roozbeh, Chang, Jan Kai, Nuzzo, Ralph G., and Rogers, John A.

Abstract

Wireless, skin-interfaced electronic and microfluidic devices have the potential to replace wired, bulky, and cumbersome technologies for personal and clinical health monitoring, allowing care to extend from hospital settings to the home. For use on skin, these devices commonly employ silicone-based thermoset elastomers (TSEs) as layers that encapsulate the electronics or serve as molded microchannels for biofluid (e.g., sweat) capture, storage, and analysis. Barriers to commercial adoption of such devices include difficulties in use of these elastomers in conventional practices for mass manufacturing. Their relatively high cost and inability to allow for recycling represent additional disadvantages. By contrast, thermoplastic elastomers (TPEs) are fully compatible with industrial-scale manufacturing processes, low in cost, and recyclable. Like TSEs, TPEs are soft, stretchable, flexible, and optically transparent, while possessing other properties well-suited for applications in wireless, skin-interfaced devices. Herein, the characteristics, processing, and application techniques for three commercially available TPEs, including two thermoplastic polyurethanes as encapsulation layers for a wireless skin hydration sensor and one thermoplastic styrenic block copolymer for a microfluidic sweat analysis platform, are reported. The results demonstrate that TPEs can be effectively integrated into these classes of devices, as a compelling alternative to TSEs, as a mass-manufacturable, sustainable materials option., QC 20231114

Published
2023
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17. Skin‐Interfaced Microfluidic System with Machine Learning‐Enabled Image Processing of Sweat Biomarkers in Remote Settings

Author

Baker, Lindsay B., primary, Seib, Melissa S., additional, Barnes, Kelly A., additional, Brown, Shyretha D., additional, King, Michelle A., additional, De Chavez, Peter John D., additional, Qu, Shankang, additional, Archer, Julian, additional, Wolfe, Anthony S., additional, Stofan, John R., additional, Carter, James M., additional, Wright, Donald E., additional, Wallace, Jessica, additional, Yang, Da Som, additional, Liu, Shanliangzi, additional, Anderson, John, additional, Fort, Tucker, additional, Li, Weihua, additional, Wright, John A., additional, Lee, Stephen P., additional, Model, Jeffrey B., additional, Rogers, John A., additional, Aranyosi, Alexander J., additional, and Ghaffari, Roozbeh, additional

Published
2022
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21. Three-dimensional, multifunctional neural interfaces for cortical spheroids and engineered assembloids

Author

Park, Yoonseok, primary, Franz, Colin K., additional, Ryu, Hanjun, additional, Luan, Haiwen, additional, Cotton, Kristen Y., additional, Kim, Jong Uk, additional, Chung, Ted S., additional, Zhao, Shiwei, additional, Vazquez-Guardado, Abraham, additional, Yang, Da Som, additional, Li, Kan, additional, Avila, Raudel, additional, Phillips, Jack K., additional, Quezada, Maria J., additional, Jang, Hokyung, additional, Kwak, Sung Soo, additional, Won, Sang Min, additional, Kwon, Kyeongha, additional, Jeong, Hyoyoung, additional, Bandodkar, Amay J., additional, Han, Mengdi, additional, Zhao, Hangbo, additional, Osher, Gabrielle R., additional, Wang, Heling, additional, Lee, KunHyuck, additional, Zhang, Yihui, additional, Huang, Yonggang, additional, Finan, John D., additional, and Rogers, John A., additional

Published
2021
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22. Wireless sensors for continuous, multimodal measurements at the skin interface with lower limb prostheses

Author

Kwak, Jean Won, primary, Han, Mengdi, additional, Xie, Zhaoqian, additional, Chung, Ha Uk, additional, Lee, Jong Yoon, additional, Avila, Raudel, additional, Yohay, Jessica, additional, Chen, Xuexian, additional, Liang, Cunman, additional, Patel, Manish, additional, Jung, Inhwa, additional, Kim, Jongwon, additional, Namkoong, Myeong, additional, Kwon, Kyeongha, additional, Guo, Xu, additional, Ogle, Christopher, additional, Grande, Dominic, additional, Ryu, Dennis, additional, Kim, Dong Hyun, additional, Madhvapathy, Surabhi, additional, Liu, Claire, additional, Yang, Da Som, additional, Park, Yoonseok, additional, Caldwell, Ryan, additional, Banks, Anthony, additional, Xu, Shuai, additional, Huang, Yonggang, additional, Fatone, Stefania, additional, and Rogers, John A., additional

Published
2020
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23. Wireless, skin-interfaced sensors for compression therapy

Author

Park, Yoonseok, primary, Kwon, Kyeongha, additional, Kwak, Sung Soo, additional, Yang, Da Som, additional, Kwak, Jean Won, additional, Luan, Haiwen, additional, Chung, Ted S., additional, Chun, Keum San, additional, Kim, Jong Uk, additional, Jang, Hokyung, additional, Ryu, Hanjun, additional, Jeong, Hyoyoung, additional, Won, Sang Min, additional, Kang, Youn J., additional, Zhang, Michael, additional, Pontes, David, additional, Kampmeier, Brianna R., additional, Seo, Seon Hee, additional, Zhao, Jeffrey, additional, Jung, Inhwa, additional, Huang, Yonggang, additional, Xu, Shuai, additional, and Rogers, John A., additional

Published
2020
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24. A Skin‐Interfaced, Miniaturized Microfluidic Analysis and Delivery System for Colorimetric Measurements of Nutrients in Sweat and Supply of Vitamins Through the Skin.

Author

Kim, Joohee, Wu, Yixin, Luan, Haiwen, Yang, Da Som, Cho, Donghwi, Kwak, Sung Soo, Liu, Shanliangzi, Ryu, Hanjun, Ghaffari, Roozbeh, and Rogers, John A.

Subjects
MICROFLUIDIC analytical techniques, PERSPIRATION, ESSENTIAL nutrients, VITAMINS, VITAMIN C, TRANSDERMAL medication
Abstract

Nutrients play critical roles in maintaining core physiological functions and in preventing diseases. Technologies for delivering these nutrients and for monitoring their concentrations can help to ensure proper nutritional balance. Eccrine sweat is a potentially attractive class of biofluid for monitoring purposes due to the ability to capture sweat easily and noninvasively from nearly any region of the body using skin‐integrated microfluidic technologies. Here, a miniaturized system of this type is presented that allows simple, rapid colorimetric assessments of the concentrations of multiple essential nutrients in sweat, simultaneously and without any supporting electronics – vitamin C, calcium, zinc, and iron. A transdermal patch integrated directly with the microfluidics supports passive, sustained delivery of these species to the body throughout a period of wear. Comparisons of measurement results to those from traditional lab analysis methods demonstrate the accuracy and reliability of this platform. On‐body tests with human subjects reveal correlations between the time dynamics of concentrations of these nutrients in sweat and those of the corresponding concentrations in blood. Studies conducted before and after consuming certain foods and beverages highlight practical capabilities in monitoring nutritional balance, with strong potential to serve as a basis for guiding personalized dietary choices. [ABSTRACT FROM AUTHOR]

Published
2022
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29. Three-dimensional, multifunctional neural interfaces for cortical spheroids and engineered assembloids

Author

Ted S. Chung, Jong Uk Kim, Maria J. Quezada, Kan Li, Hangbo Zhao, Hokyung Jang, Sung Soo Kwak, John A. Rogers, Abraham Vázquez-Guardado, Haiwen Luan, Raudel Avila, Yoonseok Park, Shiwei Zhao, Amay J. Bandodkar, Mengdi Han, Hanjun Ryu, Colin K. Franz, Jack K. Phillips, Kyeongha Kwon, Kun Hyuck Lee, Kristen Y. Cotton, John D. Finan, Heling Wang, Yihui Zhang, Sang Min Won, Da Som Yang, Gabrielle R. Osher, Yonggang Huang, Hyoyoung Jeong, Park, Yoonseok [0000-0002-1702-0986], Franz, Colin K [0000-0003-4546-8638], Ryu, Hanjun [0000-0002-3268-9661], Luan, Haiwen [0000-0003-0722-1108], Cotton, Kristen Y [0000-0002-4195-9889], Chung, Ted S [0000-0002-0212-1071], Vazquez-Guardado, Abraham [0000-0002-0648-5921], Yang, Da Som [0000-0001-5017-6686], Li, Kan [0000-0003-4864-3446], Quezada, Maria J [0000-0001-9120-4970], Jang, Hokyung [0000-0002-7797-9881], Kwak, Sung Soo [0000-0002-2625-2471], Won, Sang Min [0000-0002-5750-8628], Kwon, Kyeongha [0000-0002-2373-7799], Jeong, Hyoyoung [0000-0002-1808-7824], Bandodkar, Amay J [0000-0002-1792-1506], Zhao, Hangbo [0000-0001-5229-4192], Wang, Heling [0000-0001-7859-5153], Zhang, Yihui [0000-0003-0885-2067], Huang, Yonggang [0000-0002-0483-8359], Finan, John D [0000-0003-4626-9702], Rogers, John A [0000-0002-3830-5980], and Apollo - University of Cambridge Repository

Subjects
Computer science, Quantitative Biology::Tissues and Organs, Materials Science, macromolecular substances, Nervous System, 03 medical and health sciences, Bursting, Engineering, 0302 clinical medicine, Research Articles, 030304 developmental biology, Neurons, 0303 health sciences, Multidisciplinary, Quantitative Biology::Neurons and Cognition, fungi, technology, industry, and agriculture, Spheroid, SciAdv r-articles, equipment and supplies, Neuromodulation (medicine), Applied Sciences and Engineering, embryonic structures, Neuroscience research, Neuroscience, 030217 neurology & neurosurgery, Research Article
Abstract

3D multifunctional frameworks, as flexible as a single strand of silk, modulate and measure neural activity of brain spheroids., Three-dimensional (3D), submillimeter-scale constructs of neural cells, known as cortical spheroids, are of rapidly growing importance in biological research because these systems reproduce complex features of the brain in vitro. Despite their great potential for studies of neurodevelopment and neurological disease modeling, 3D living objects cannot be studied easily using conventional approaches to neuromodulation, sensing, and manipulation. Here, we introduce classes of microfabricated 3D frameworks as compliant, multifunctional neural interfaces to spheroids and to assembloids. Electrical, optical, chemical, and thermal interfaces to cortical spheroids demonstrate some of the capabilities. Complex architectures and high-resolution features highlight the design versatility. Detailed studies of the spreading of coordinated bursting events across the surface of an isolated cortical spheroid and of the cascade of processes associated with formation and regrowth of bridging tissues across a pair of such spheroids represent two of the many opportunities in basic neuroscience research enabled by these platforms.

Published
2021
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30. A wirelessly programmable, skin-integrated thermo-haptic stimulator system for virtual reality.

Author

Kim JH, Vázquez-Guardado A, Luan H, Kim JT, Yang DS, Zhang H, Chang JK, Yoo S, Park C, Wei Y, Christiansen Z, Kim S, Avila R, Kim JU, Lee YJ, Shin HS, Zhou M, Jeon SW, Baek JM, Lee Y, Kim SY, Lim J, Park M, Jeong H, Won SM, Chen R, Huang Y, Jung YH, Yoo JY, and Rogers JA

Subjects
Humans, Skin, Robotics instrumentation, Robotics methods, Wireless Technology instrumentation, Touch physiology, Virtual Reality
Abstract

Sensations of heat and touch produced by receptors in the skin are of essential importance for perceptions of the physical environment, with a particularly powerful role in interpersonal interactions. Advances in technologies for replicating these sensations in a programmable manner have the potential not only to enhance virtual/augmented reality environments but they also hold promise in medical applications for individuals with amputations or impaired sensory function. Engineering challenges are in achieving interfaces with precise spatial resolution, power-efficient operation, wide dynamic range, and fast temporal responses in both thermal and in physical modulation, with forms that can extend over large regions of the body. This paper introduces a wireless, skin-compatible interface for thermo-haptic modulation designed to address some of these challenges, with the ability to deliver programmable patterns of enhanced vibrational displacement and high-speed thermal stimulation. Experimental and computational investigations quantify the thermal and mechanical efficiency of a vertically stacked design layout in the thermo-haptic stimulators that also supports real-time, closed-loop control mechanisms. The platform is effective in conveying thermal and physical information through the skin, as demonstrated in the control of robotic prosthetics and in interactions with pressure/temperature-sensitive touch displays., Competing Interests: Competing interests statement:The authors declare no competing interest.

Published
2024
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