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129 results on '"Xie, Zhaoqian"'

101. Battery-free, wireless sensors for full-body pressure and temperature mapping

Author

Han, Seungyong, primary, Kim, Jeonghyun, additional, Won, Sang Min, additional, Ma, Yinji, additional, Kang, Daeshik, additional, Xie, Zhaoqian, additional, Lee, Kyu-Tae, additional, Chung, Ha Uk, additional, Banks, Anthony, additional, Min, Seunghwan, additional, Heo, Seung Yun, additional, Davies, Charles R., additional, Lee, Jung Woo, additional, Lee, Chi-Hwan, additional, Kim, Bong Hoon, additional, Li, Kan, additional, Zhou, Yadong, additional, Wei, Chen, additional, Feng, Xue, additional, Huang, Yonggang, additional, and Rogers, John A., additional

Published
2018
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104. Dissolution of Monocrystalline Silicon Nanomembranes and Their Use as Encapsulation Layers and Electrical Interfaces in Water-Soluble Electronics

Author

Lee, Yoon Kyeung, primary, Yu, Ki Jun, additional, Song, Enming, additional, Barati Farimani, Amir, additional, Vitale, Flavia, additional, Xie, Zhaoqian, additional, Yoon, Younghee, additional, Kim, Yerim, additional, Richardson, Andrew, additional, Luan, Haiwen, additional, Wu, Yixin, additional, Xie, Xu, additional, Lucas, Timothy H., additional, Crawford, Kaitlyn, additional, Mei, Yongfeng, additional, Feng, Xue, additional, Huang, Yonggang, additional, Litt, Brian, additional, Aluru, Narayana R., additional, Yin, Lan, additional, and Rogers, John A., additional

Published
2017
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106. A skin-attachable, stretchable integrated system based on liquid GaInSn for wireless human motion monitoring with multi-site sensing capabilities

Author

Jeong, Yu Ra, primary, Kim, Jeonghyun, additional, Xie, Zhaoqian, additional, Xue, Yeguang, additional, Won, Sang Min, additional, Lee, Geumbee, additional, Jin, Sang Woo, additional, Hong, Soo Yeong, additional, Feng, Xue, additional, Huang, Yonggang, additional, Rogers, John A, additional, and Ha, Jeong Sook, additional

Published
2017
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107. Transferred, Ultrathin Oxide Bilayers as Biofluid Barriers for Flexible Electronic Implants

Author

Song, Enming, primary, Lee, Yoon Kyeung, additional, Li, Rui, additional, Li, Jinghua, additional, Jin, Xin, additional, Yu, Ki Jun, additional, Xie, Zhaoqian, additional, Fang, Hui, additional, Zhong, Yiding, additional, Du, Haina, additional, Zhang, Jize, additional, Fang, Guanhua, additional, Kim, Yerim, additional, Yoon, Younghee, additional, Alam, Muhammad A., additional, Mei, Yongfeng, additional, Huang, Yonggang, additional, and Rogers, John A., additional

Published
2017
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108. Flexible Near-Field Wireless Optoelectronics as Subdermal Implants for Broad Applications in Optogenetics

Author

Shin, Gunchul, primary, Gomez, Adrian M., additional, Al-Hasani, Ream, additional, Jeong, Yu Ra, additional, Kim, Jeonghyun, additional, Xie, Zhaoqian, additional, Banks, Anthony, additional, Lee, Seung Min, additional, Han, Sang Youn, additional, Yoo, Chul Jong, additional, Lee, Jong-Lam, additional, Lee, Seung Hee, additional, Kurniawan, Jonas, additional, Tureb, Jacob, additional, Guo, Zhongzhu, additional, Yoon, Jangyeol, additional, Park, Sung-Il, additional, Bang, Sang Yun, additional, Nam, Yoonho, additional, Walicki, Marie C., additional, Samineni, Vijay K., additional, Mickle, Aaron D., additional, Lee, Kunhyuk, additional, Heo, Seung Yun, additional, McCall, Jordan G., additional, Pan, Taisong, additional, Wang, Liang, additional, Feng, Xue, additional, Kim, Tae-il, additional, Kim, Jong Kyu, additional, Li, Yuhang, additional, Huang, Yonggang, additional, Gereau, Robert W., additional, Ha, Jeong Sook, additional, Bruchas, Michael R., additional, and Rogers, John A., additional

Published
2017
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109. Oximetry: Miniaturized Battery-Free Wireless Systems for Wearable Pulse Oximetry (Adv. Funct. Mater. 1/2017)

Author

Kim, Jeonghyun, primary, Gutruf, Philipp, additional, Chiarelli, Antonio M., additional, Heo, Seung Yun, additional, Cho, Kyoungyeon, additional, Xie, Zhaoqian, additional, Banks, Anthony, additional, Han, Seungyoung, additional, Jang, Kyung-In, additional, Lee, Jung Woo, additional, Lee, Kyu-Tae, additional, Feng, Xue, additional, Huang, Yonggang, additional, Fabiani, Monica, additional, Gratton, Gabriele, additional, Paik, Ungyu, additional, and Rogers, John A., additional

Published
2017
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110. Miniaturized Battery‐Free Wireless Systems for Wearable Pulse Oximetry

Author

Kim, Jeonghyun, primary, Gutruf, Philipp, additional, Chiarelli, Antonio M., additional, Heo, Seung Yun, additional, Cho, Kyoungyeon, additional, Xie, Zhaoqian, additional, Banks, Anthony, additional, Han, Seungyoung, additional, Jang, Kyung‐In, additional, Lee, Jung Woo, additional, Lee, Kyu‐Tae, additional, Feng, Xue, additional, Huang, Yonggang, additional, Fabiani, Monica, additional, Gratton, Gabriele, additional, Paik, Ungyu, additional, and Rogers, John A., additional

Published
2016
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112. Mechanical assembly of complex, 3D mesostructures from releasable multilayers of advanced materials

Author

Yan, Zheng, primary, Zhang, Fan, additional, Liu, Fei, additional, Han, Mengdi, additional, Ou, Dapeng, additional, Liu, Yuhao, additional, Lin, Qing, additional, Guo, Xuelin, additional, Fu, Haoran, additional, Xie, Zhaoqian, additional, Gao, Mingye, additional, Huang, Yuming, additional, Kim, JungHwan, additional, Qiu, Yitao, additional, Nan, Kewang, additional, Kim, Jeonghyun, additional, Gutruf, Philipp, additional, Luo, Hongying, additional, Zhao, An, additional, Hwang, Keh-Chih, additional, Huang, Yonggang, additional, Zhang, Yihui, additional, and Rogers, John A., additional

Published
2016
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113. Transferred, Ultrathin Oxide Bilayers as Biofluid Barriers for Flexible Electronic Implants.

Author

Song, Enming, Lee, Yoon Kyeung, Li, Rui, Li, Jinghua, Jin, Xin, Yu, Ki Jun, Xie, Zhaoqian, Fang, Hui, Zhong, Yiding, Du, Haina, Zhang, Jize, Fang, Guanhua, Kim, Yerim, Yoon, Younghee, Alam, Muhammad A., Mei, Yongfeng, Huang, Yonggang, and Rogers, John A.

Subjects
SILICA, SILICON wafers, HAFNIUM oxide, ATOMIC layer deposition, ELECTRONIC equipment
Abstract

Abstract: The work presented here introduces a materials strategy that involves physically transferred, ultrathin layers of silicon dioxide (SiO2) thermally grown on silicon wafers and then coated with hafnium oxide (HfO2) by atomic layer deposition, as barriers that satisfy requirements for even the most challenging flexible electronic devices. Materials and physics aspects of hydrolysis and ionic transport associated with such bilayers define their performance and reliability characteristics. Systematic experimental studies and reactive diffusion modeling suggest that the HfO2 film, even with some density of pinholes, slows dissolution of the underlying SiO2 by orders of magnitude, independent of the concentration of ions in the surrounding biofluids. Accelerated tests that involve immersion in phosphate‐buffered saline solution at a pH of 7.4 and under a constant electrical bias demonstrate that this bilayer barrier can also obstruct the transport of ions that would otherwise cause drifts in the operation of the electronics. Theoretical drift–diffusion modeling defines the coupling of dissolution and ion diffusion, including their effects on device lifetime. Demonstrations of such barriers with passive and active components in thin, flexible electronic test structures highlight the potential advantages for wide applications in chronic biointegrated devices. [ABSTRACT FROM AUTHOR]

Published
2018
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114. Soft Three-Dimensional Microscale Vibratory Platforms for Characterization of Nano-Thin Polymer Films

Author

Nan, Kewang, Wang, Heling, Ning, Xin, Miller, Kali A., Wei, Chen, Liu, Yunpeng, Li, Haibo, Xue, Yeguang, Xie, Zhaoqian, Luan, Haiwen, Zhang, Yihui, Huang, Yonggang, Rogers, John A., and Braun, Paul V.

Abstract

Vibrational resonances of microelectromechanical systems (MEMS) can serve as means for assessing physical properties of ultrathin coatings in sensors and analytical platforms. Most such technologies exist in largely two-dimensional configurations with a limited total number of accessible vibration modes and modal displacements, thereby placing constraints on design options and operational capabilities. This study presents a set of concepts in three-dimensional (3D) microscale platforms with vibrational resonances excited by Lorentz-force actuation for purposes of measuring properties of thin-film coatings. Nanoscale films including photodefinable epoxy, cresol novolak resin, and polymer brush with thicknesses as small as 270 nm serve as the test vehicles for demonstrating the advantages of these 3D MEMS for detection of multiple physical properties, such as modulus and density, within a single polymer sample. The stability and reusability of the structure are demonstrated through multiple measurements of polymer samples using a single platform, and viaintegration with thermal actuators, the temperature-dependent physical properties of polymer films are assessed. Numerical modeling also suggests the potential for characterization of anisotropic mechanical properties in single or multilayer films. The findings establish unusual opportunities for interrogation of the physical properties of polymers through advanced MEMS design.

Published
2019
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115. Epidermal Electronics: Miniaturized Flexible Electronic Systems with Wireless Power and Near-Field Communication Capabilities (Adv. Funct. Mater. 30/2015)

Author

Kim, Jeonghyun, primary, Banks, Anthony, additional, Xie, Zhaoqian, additional, Heo, Seung Yun, additional, Gutruf, Philipp, additional, Lee, Jung Woo, additional, Xu, Sheng, additional, Jang, Kyung-In, additional, Liu, Fei, additional, Brown, Gregory, additional, Choi, Junghyun, additional, Kim, Joo Hyun, additional, Feng, Xue, additional, Huang, Yonggang, additional, Paik, Ungyu, additional, and Rogers, John A., additional

Published
2015
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116. Miniaturized Flexible Electronic Systems with Wireless Power and Near‐Field Communication Capabilities

Author

Kim, Jeonghyun, primary, Banks, Anthony, additional, Xie, Zhaoqian, additional, Heo, Seung Yun, additional, Gutruf, Philipp, additional, Lee, Jung Woo, additional, Xu, Sheng, additional, Jang, Kyung‐In, additional, Liu, Fei, additional, Brown, Gregory, additional, Choi, Junghyun, additional, Kim, Joo Hyun, additional, Feng, Xue, additional, Huang, Yonggang, additional, Paik, Ungyu, additional, and Rogers, John A., additional

Published
2015
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117. Stretchable Electronics: Epidermal Electronics with Advanced Capabilities in Near-Field Communication (Small 8/2015)

Author

Kim, Jeonghyun, primary, Banks, Anthony, additional, Cheng, Huanyu, additional, Xie, Zhaoqian, additional, Xu, Sheng, additional, Jang, Kyung-In, additional, Lee, Jung Woo, additional, Liu, Zhuangjian, additional, Gutruf, Philipp, additional, Huang, Xian, additional, Wei, Pinghung, additional, Liu, Fei, additional, Li, Kan, additional, Dalal, Mitul, additional, Ghaffari, Roozbeh, additional, Feng, Xue, additional, Huang, Yonggang, additional, Gupta, Sanjay, additional, Paik, Ungyu, additional, and Rogers, John A., additional

Published
2015
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119. Epidermal Electronics with Advanced Capabilities in Near-Field Communication

Author

Kim, Jeonghyun, primary, Banks, Anthony, additional, Cheng, Huanyu, additional, Xie, Zhaoqian, additional, Xu, Sheng, additional, Jang, Kyung-In, additional, Lee, Jung Woo, additional, Liu, Zhuangjian, additional, Gutruf, Philipp, additional, Huang, Xian, additional, Wei, Pinghung, additional, Liu, Fei, additional, Li, Kan, additional, Dalal, Mitul, additional, Ghaffari, Roozbeh, additional, Feng, Xue, additional, Huang, Yonggang, additional, Gupta, Sanjay, additional, Paik, Ungyu, additional, and Rogers, John A., additional

Published
2014
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120. Miniaturized Battery-Free Wireless Systems for Wearable Pulse Oximetry.

Author

Kim, Jeonghyun, Gutruf, Philipp, Chiarelli, Antonio M., Heo, Seung Yun, Cho, Kyoungyeon, Xie, Zhaoqian, Banks, Anthony, Han, Seungyoung, Jang, Kyung‐In, Lee, Jung Woo, Lee, Kyu‐Tae, Feng, Xue, Huang, Yonggang, Fabiani, Monica, Gratton, Gabriele, Paik, Ungyu, and Rogers, John A.

Subjects
WEARABLE technology, OXIMETRY, MINIATURE electronic equipment, IRRITATION (Pathology), NEAR field communication
Abstract

Development of unconventional technologies for wireless collection and analysis of quantitative, clinically relevant information on physiological status is of growing interest. Soft, biocompatible systems are widely regarded as important because they facilitate mounting on external (e.g., skin) and internal (e.g., heart and brain) surfaces of the body. Ultraminiaturized, lightweight, and battery-free devices have the potential to establish complementary options in biointegration, where chronic interfaces (i.e., months) are possible on hard surfaces such as the fingernails and the teeth, with negligible risk for irritation or discomfort. Here, the authors report materials and device concepts for flexible platforms that incorporate advanced optoelectronic functionality for applications in wireless capture and transmission of photoplethysmograms, including quantitative information on blood oxygenation, heart rate, and heart rate variability. Specifically, reflectance pulse oximetry in conjunction with near-field communication capabilities enables operation in thin, miniaturized flexible devices. Studies of the material aspects associated with the body interface, together with investigations of the radio frequency characteristics, the optoelectronic data acquisition approaches, and the analysis methods capture all of the relevant engineering considerations. Demonstrations of operation on various locations of the body and quantitative comparisons to clinical gold standards establish the versatility and the measurement accuracy of these systems, respectively. [ABSTRACT FROM AUTHOR]

Published
2017
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125. Thin, Skin‐Integrated, Stretchable Triboelectric Nanogenerators for Tactile Sensing.

Author

Liu, Yiming, Wang, Lingyun, Zhao, Ling, Yao, Kuanming, Xie, Zhaoqian, Zi, Yunlong, and Yu, Xinge

Subjects
TRIBOELECTRICITY, ENERGY harvesting, SENSOR arrays, ENERGY consumption, ELECTRONICS, ELECTRICITY, EPIDERMIS
Abstract

Recent advances in thin, soft skin‐integrated electronics have brought many opportunities in the wearable technics. A simple platform with the functionality of self‐powering for epidermal electronics is reported. These electronics can generate electricity from external mechanical stresses that associates with triboelectric effect, and therefore afford excellent performance in tactile sensing and energy harvesting. Combined advances in materials and mechanics of the skin‐integrated electronics with high efficiency energy harvesting techniques, triboelectric nanogenerators (TENGs) in an epidermal format is realized for the first time. The dots‐distributed electrode pattern allows these electronics exhibiting excellent flexibility and stretchability, distinguishing a broad range of pressures that are relevant to normal body motions. The electricity output of the epidermal device from simple finger tapping modes can achieve >60 V of voltage and >1 µA of current, which is sufficient to light up 15 small light‐emitting diodes. Furthermore, the authors also report a 4 × 4 sensor array based on these TENGs, and demonstrate a skin‐like electronics for real‐time motion monitoring and tactile mapping. [ABSTRACT FROM AUTHOR]

Published
2020
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127. Complex 3D microfluidic architectures formed by mechanically guided compressive buckling

Author

Haiwen Luan, Wubin Bai, Shulin Chen, Xinchen Ni, Xueju Wang, Zhaoqian Xie, Shenglian Yao, Yameng Xu, Heling Wang, Zhengwei Li, Jilong Ye, John A. Rogers, Tzu Li Liu, Quansan Yang, Shiwei Zhao, Di Lu, Qihui Zhang, Shuo Li, Changsheng Wu, Mengdi Han, Yeguang Xue, Kan Li, Dongwhi Choi, Jae Hwan Kim, Jan-Kai Chang, Yonggang Huang, Jean Won Kwak, Luan, Haiwen [0000-0003-0722-1108], Wang, Xueju [0000-0002-0669-8759], Zhao, Shiwei [0000-0002-9797-1334], Wang, Heling [0000-0001-7859-5153], Xue, Yeguang [0000-0002-1968-5092], Kwak, Jean Won [0000-0001-7883-9242], Bai, Wubin [0000-0003-2872-5559], Li, Kan [0000-0003-4864-3446], Ni, Xinchen [0000-0002-3327-3764], Choi, Dongwhi [0000-0002-9286-2710], Yang, Quansan [0000-0001-8029-1327], Kim, Jae-Hwan [0000-0002-8940-652X], Li, Shuo [0000-0003-4913-730X], Chang, Jan-Kai [0000-0002-3056-1250], Xie, Zhaoqian [0000-0003-1320-817X], Huang, Yonggang [0000-0002-0483-8359], Rogers, John A [0000-0002-3830-5980], and Apollo - University of Cambridge Repository

Subjects
4003 Biomedical Engineering, Multidisciplinary, Materials science, Microfluidics, Materials Science, SciAdv r-articles, Bioengineering, Nanotechnology, 46 Information and Computing Sciences, Buckling, Applied Sciences and Engineering, Drug delivery, Physical and Materials Sciences, 40 Engineering, Biotechnology, Research Article
Abstract

Description, Mechanically guided assembly techniques yield complex 3D microvascular networks with multifunctional characteristics., Microfluidic technologies have wide-ranging applications in chemical analysis systems, drug delivery platforms, and artificial vascular networks. This latter area is particularly relevant to 3D cell cultures, engineered tissues, and artificial organs, where volumetric capabilities in fluid distribution are essential. Existing schemes for fabricating 3D microfluidic structures are constrained in realizing desired layout designs, producing physiologically relevant microvascular structures, and/or integrating active electronic/optoelectronic/microelectromechanical components for sensing and actuation. This paper presents a guided assembly approach that bypasses these limitations to yield complex 3D microvascular structures from 2D precursors that exploit the full sophistication of 2D fabrication methods. The capabilities extend to feature sizes

Published
2021

128. Wirelessly controlled, bioresorbable drug delivery device with active valves that exploit electrochemically triggered crevice corrosion

Author

Yonggang Huang, Jae Hwan Kim, Jahyun Koo, Ying Yan, Karen F. Doty, Seung-Kyun Kang, Yeon Sik Choi, Jeonghyun Kim, Maryam Kherad Pezhouh, Chi Hwan Lee, Wilson Z. Ray, Zhaoqian Xie, Seungmin Lee, Yu Yu Chen, John A. Rogers, Hojun Kim, Dominic D'Andrea, Sung Bong Kim, Seongbin Jo, Hyuck Mo Lee, Ji Hyeon Park, Ki Min Jung, Kun Hyuck Lee, Cecilia Leal, Heling Wang, Kan Li, Yong Suk Oh, Amay J. Bandodkar, Sung Soo Kwak, Anthony Banks, Xue Feng, Geumbee Lee, Doosun Hong, Colin K. Franz, Sung Geun Choi, Woo Jin Jang, Matthew R. MacEwan, Jawad M. Khalifeh, Inkyu Park, Koo, Jahyun [0000-0003-1503-0731], Kim, Sung Bong [0000-0003-3082-349X], Choi, Yeon Sik [0000-0003-3813-3442], Xie, Zhaoqian [0000-0003-1320-817X], Bandodkar, Amay J [0000-0002-1792-1506], Kim, Hojun [0000-0001-7974-1044], Lee, Geumbee [0000-0002-2288-6186], Jung, Kimin [0000-0002-7557-416X], Li, Kan [0000-0003-4864-3446], Wang, Heling [0000-0001-7859-5153], Kim, Jae-Hwan [0000-0002-8940-652X], Kim, Jeonghyun [0000-0003-3090-1435], Choi, Sung-Geun [0000-0002-0445-3926], Park, Inkyu [0000-0001-5761-7739], Kwak, Sung Soo [0000-0002-2625-2471], Hong, Doosun [0000-0001-8389-5804], Feng, Xue [0000-0001-9242-8474], Lee, Chi-Hwan [0000-0002-4868-7054], Banks, Anthony [0000-0002-0509-0370], Leal, Cecilia [0000-0001-5972-508X], Lee, Hyuck Mo [0000-0003-4556-6692], Huang, Yonggang [0000-0002-0483-8359], Franz, Colin K [0000-0003-4546-8638], MacEwan, Matthew [0000-0002-7911-3408], Kang, Seung-Kyun [0000-0001-9779-8976], Rogers, John A [0000-0002-3830-5980], and Apollo - University of Cambridge Repository

Subjects
4003 Biomedical Engineering, Multidisciplinary, Materials science, Materials Science, Diabetes, SciAdv r-articles, Controlled release, Electrical current, 5.1 Pharmaceuticals, Drug delivery, Drug release, Health and Medicine, 5 Development of treatments and therapeutic interventions, Research Articles, Metabolic and endocrine, Research Article, 40 Engineering, Biomedical engineering, Crevice corrosion
Abstract

Bioresorbable drug release platforms offer advanced treatment for hormone imbalances, malignant cancers, and diabetic conditions., Implantable drug release platforms that offer wirelessly programmable control over pharmacokinetics have potential in advanced treatment protocols for hormone imbalances, malignant cancers, diabetic conditions, and others. We present a system with this type of functionality in which the constituent materials undergo complete bioresorption to eliminate device load from the patient after completing the final stage of the release process. Here, bioresorbable polyanhydride reservoirs store drugs in defined reservoirs without leakage until wirelessly triggered valve structures open to allow release. These valves operate through an electrochemical mechanism of geometrically accelerated corrosion induced by passage of electrical current from a wireless, bioresorbable power-harvesting unit. Evaluations in cell cultures demonstrate the efficacy of this technology for the treatment of cancerous tissues by release of the drug doxorubicin. Complete in vivo studies of platforms with multiple, independently controlled release events in live-animal models illustrate capabilities for control of blood glucose levels by timed delivery of insulin.

Published
2020

129. Battery-free, stretchable optoelectronic systems for wireless optical characterization of the skin.

Author

Kim J, Salvatore GA, Araki H, Chiarelli AM, Xie Z, Banks A, Sheng X, Liu Y, Lee JW, Jang KI, Heo SY, Cho K, Luo H, Zimmerman B, Kim J, Yan L, Feng X, Xu S, Fabiani M, Gratton G, Huang Y, Paik U, and Rogers JA

Subjects
Blood Pressure, Epidermis physiology, Heart Rate, Oximetry instrumentation, Oximetry methods, Radiation Dosimeters, Regional Blood Flow, Biosensing Techniques instrumentation, Biosensing Techniques methods, Electronics instrumentation, Electronics methods, Skin, Skin Physiological Phenomena, Wireless Technology
Abstract

Recent advances in materials, mechanics, and electronic device design are rapidly establishing the foundations for health monitoring technologies that have "skin-like" properties, with options in chronic (weeks) integration with the epidermis. The resulting capabilities in physiological sensing greatly exceed those possible with conventional hard electronic systems, such as those found in wrist-mounted wearables, because of the intimate skin interface. However, most examples of such emerging classes of devices require batteries and/or hard-wired connections to enable operation. The work reported here introduces active optoelectronic systems that function without batteries and in an entirely wireless mode, with examples in thin, stretchable platforms designed for multiwavelength optical characterization of the skin. Magnetic inductive coupling and near-field communication (NFC) schemes deliver power to multicolored light-emitting diodes and extract digital data from integrated photodetectors in ways that are compatible with standard NFC-enabled platforms, such as smartphones and tablet computers. Examples in the monitoring of heart rate and temporal dynamics of arterial blood flow, in quantifying tissue oxygenation and ultraviolet dosimetry, and in performing four-color spectroscopic evaluation of the skin demonstrate the versatility of these concepts. The results have potential relevance in both hospital care and at-home diagnostics.

Published
2016
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