@article{garland_song_ma_kim_vazquez-guardado_hashkavayi_ganeshan_sharma_ryu_lee_et al._2023, title={A Miniaturized, Battery-Free, Wireless Wound Monitor That Predicts Wound Closure Rate Early}, volume={7}, ISSN={["2192-2659"]}, url={http://dx.doi.org/10.1002/adhm.202301280}, DOI={10.1002/adhm.202301280}, abstractNote={Abstract}, journal={ADVANCED HEALTHCARE MATERIALS}, publisher={Wiley}, author={Garland, Nate T. and Song, Joseph W. and Ma, Tengfei and Kim, Yong Jae and Vazquez-Guardado, Abraham and Hashkavayi, Ayemeh Bagheri and Ganeshan, Sankalp Koduvayur and Sharma, Nivesh and Ryu, Hanjun and Lee, Min-Kyu and et al.}, year={2023}, month={Jul} }
 @article{garland_kaveti_bandodkar_2023, title={Biofluid-Activated Biofuel Cells, Batteries, and Supercapacitors: A Comprehensive Review}, volume={6}, ISSN={["1521-4095"]}, url={http://dx.doi.org/10.1002/adma.202303197}, DOI={10.1002/adma.202303197}, abstractNote={Abstract}, journal={ADVANCED MATERIALS}, publisher={Wiley}, author={Garland, Nate T. and Kaveti, Rajaram and Bandodkar, Amay J.}, year={2023}, month={Nov} }
 @article{han_kim_kim_ko_shin_jang_han_kang_lim_eom_et al._2023, title={Electric Eel-Inspired Soft Electrocytes for Solid-State Power Systems}, volume={10}, ISSN={["1616-3028"]}, url={http://dx.doi.org/10.1002/adfm.202309781}, DOI={10.1002/adfm.202309781}, abstractNote={Abstract}, journal={ADVANCED FUNCTIONAL MATERIALS}, author={Han, Won Bae and Kim, Dong-Je and Kim, Yong Min and Ko, Gwan-Jin and Shin, Jeong-Woong and Jang, Tae-Min and Han, Sungkeun and Kang, Heeseok and Lim, Jun Hyeon and Eom, Chan-Hwi and et al.}, year={2023}, month={Oct} }
 @article{han_ko_yang_kang_lee_shin_jang_han_kim_lim_et al._2023, title={Micropatterned Elastomeric Composites for Encapsulation of Transient Electronics}, volume={17}, ISSN={["1936-086X"]}, url={http://dx.doi.org/10.1021/acsnano.3c03063}, DOI={10.1021/acsnano.3c03063}, abstractNote={Although biodegradable, transient electronic devices must dissolve or decompose via environmental factors, an effective waterproofing or encapsulation system is essential for reliable, durable operation for a desired period of time. Existing protection approaches use multiple or alternate layers of electrically inactive organic/inorganic elements combined with polymers; however, their high mechanical stiffness is not suitable for soft, time-dynamic biological tissues/skins/organs. Here, we introduce a stretchable, bioresorbable encapsulant using nanoparticle-incorporated elastomeric composites with modifications of surface morphology. Nature-inspired micropatterns reduce the diffusion area for water molecules, and embedded nanoparticles impede water permeation, which synergistically enhances the water-barrier performance. Empirical and theoretical evaluations validate the encapsulation mechanisms under strains. Demonstration of a soft, degradable shield with an optical component under a biological solution highlights the potential applicability of the proposed encapsulation strategy.}, number={15}, journal={ACS NANO}, publisher={American Chemical Society (ACS)}, author={Han, Won Bae and Ko, Gwan-Jin and Yang, Seung Min and Kang, Heeseok and Lee, Joong Hoon and Shin, Jeong-Woong and Jang, Tae-Min and Han, Sungkeun and Kim, Dong-Je and Lim, Jun Hyeon and et al.}, year={2023}, month={Jul}, pages={14822–14830} }
 @article{kaveti_lee_youn_jang_han_yang_shin_ko_kim_han_et al._2023, title={Soft, Long-Lived, Bioresorbable Electronic Surgical Mesh with Wireless Pressure Monitor and On-Demand Drug Delivery}, volume={12}, ISSN={["1521-4095"]}, url={https://doi.org/10.1002/adma.202307391}, DOI={10.1002/adma.202307391}, abstractNote={Abstract}, journal={ADVANCED MATERIALS}, author={Kaveti, Rajaram and Lee, Joong Hoon and Youn, Joong Kee and Jang, Tae-Min and Han, Won Bae and Yang, Seung Min and Shin, Jeong-Woong and Ko, Gwan-Jin and Kim, Dong-Je and Han, Sungkeun and et al.}, year={2023}, month={Dec} }
 @article{kang_han_yang_ko_ryu_lee_shin_jang_rajaram_han_et al._2023, title={Stretchable and biodegradable triboelectric nanogenerator based on elastomeric nanocomposites}, volume={475}, ISSN={["1873-3212"]}, url={http://dx.doi.org/10.1016/j.cej.2023.146208}, DOI={10.1016/j.cej.2023.146208}, abstractNote={Biologically benign, dissolvable materials-based triboelectric nanogenerators hold significant potential as a sustainable power source for bioresorbable, transient electronic systems; however poor options in materials and engineering approaches are major obstacles to the desired electrical, physical, and mechanical properties, particularly when considering operations under restrictive, demanding conditions or environments. Here, we present an elastomeric composites-based triboelectric nanogenerator with a package of completely degradable materials. Assembly of inorganic nanoparticles with high charge affinity/permittivity and micro-pyramid structures with high surface area produces enhanced charge density and power outputs over those of existing elements. Study on mechanical and biochemical characteristics validates the capability of maintaining stable, long-life electrical outputs under cyclic tests and aqueous solutions. Demonstrations of energy harvesting at an artificial knee and self-powered motion sensing at a finger joint suggest the practical feasibility in versatile areas of biomedical and eco-resorbable electronics.}, journal={CHEMICAL ENGINEERING JOURNAL}, publisher={Elsevier BV}, author={Kang, Heeseok and Han, Won Bae and Yang, Seung Min and Ko, Gwan-Jin and Ryu, Yelynn and Lee, Joong Hoon and Shin, Jeong-Woong and Jang, Tae-Min and Rajaram, Kaveti and Han, Sungkeun and et al.}, year={2023}, month={Nov} }
 @article{han_ko_lee_kim_lee_yang_kim_shin_jang_han_et al._2023, title={Ultra-stretchable and biodegradable elastomers for soft, transient electronics}, volume={14}, url={http://dx.doi.org/10.1038/s41467-023-38040-4}, DOI={10.1038/s41467-023-38040-4}, abstractNote={Abstract}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={HAN, WON BAE and Ko, Gwan-Jin and Lee, Kang-Gon and Kim, Donghak and Lee, Joong Hoon and Yang, Seung Min and Kim, Dong-Je and Shin, Jeong-Woong and Jang, Tae-Min and Han, Sungkeun and et al.}, year={2023}, month={Apr} }
 @article{lee_jang_shin_lim_rajaram_han_ko_yang_han_kim_et al._2023, title={Wireless, Fully Implantable and Expandable Electronic System for Bidirectional Electrical Neuromodulation of the Urinary Bladder}, volume={4}, url={http://dx.doi.org/10.1021/acsnano.3c00755}, DOI={10.1021/acsnano.3c00755}, abstractNote={Current standard clinical options for patients with detrusor underactivity (DUA) or underactive bladder─the inability to release urine naturally─include the use of medications, voiding techniques, and intermittent catheterization, for which the patient inserts a tube directly into the urethra to eliminate urine. Although those are life-saving techniques, there are still unfavorable side effects, including urinary tract infection (UTI), urethritis, irritation, and discomfort. Here, we report a wireless, fully implantable, and expandable electronic complex that enables elaborate management of abnormal bladder function via seamless integrations with the urinary bladder. Such electronics can not only record multiple physiological parameters simultaneously but also provide direct electrical stimulation based on a feedback control system. Uniform distribution of multiple stimulation electrodes via mesh-type geometry realizes low-impedance characteristics, which improves voiding/urination efficiency at the desired times. In vivo evaluations using live, free-moving animal models demonstrate system-level functionality.}, journal={ACS Nano}, publisher={American Chemical Society (ACS)}, author={Lee, Joong Hoon and Jang, Tae-Min and Shin, Jeong-Woong and Lim, Bong Hee and Rajaram, Kaveti and HAN, WON BAE and Ko, Gwan-Jin and Yang, Seung Min and Han, Sungkeun and Kim, Dong-Je and et al.}, year={2023}, month={Apr} }
 @article{han_heo_kim_yang_ko_lee_kim_rajaram_lee_shin_et al._2023, title={Zebra-inspired stretchable, biodegradable radiation modulator for all-day sustainable energy harvesters}, url={https://doi.org/10.1126/sciadv.adf5883}, DOI={10.1126/sciadv.adf5883}, abstractNote={Recent advances in passive radiative cooling systems describe a variety of strategies to enhance cooling efficiency, while the integration of such technology with a bioinspired design using biodegradable materials can offer a research opportunity to generate energy in a sustainable manner, favorable for the temperature/climate system of the planet. Here, we introduce stretchable and ecoresorbable radiative cooling/heating systems engineered with zebra stripe–like patterns that enable the generation of a large in-plane temperature gradient for thermoelectric generation. A comprehensive study of materials with theoretical evaluations validates the ability to accomplish the target performances even under external mechanical strains, while all systems eventually disappear under physiological conditions. Use of the zebra print for selective radiative heating demonstrates an unexpected level of temperature difference compared to use of radiative cooling emitters alone, which enables producing energy through resorbable silicon-based thermoelectric devices. The overall result suggests the potential of scalable, ecofriendly renewable energy systems.}, journal={Science Advances}, author={Han, Won Bae and Heo, Se-Yeon and Kim, Donghak and Yang, Seung Min and Ko, Gwan-Jin and Lee, Gil Ju and Kim, Dong-Je and Rajaram, Kaveti and Lee, Joong Hoon and Shin, Jeong-Woong and et al.}, year={2023}, month={Feb} }
 @article{han_yang_rajaram_hwang_2022, title={Materials and Fabrication Strategies for Biocompatible and Biodegradable Conductive Polymer Composites toward Bio‐Integrated Electronic Systems}, volume={6}, url={http://dx.doi.org/10.1002/adsu.202100075}, DOI={10.1002/adsu.202100075}, abstractNote={Abstract}, number={2}, journal={Advanced Sustainable Systems}, publisher={Wiley}, author={HAN, WON BAE and Yang, Seung Min and Rajaram, Kaveti and HWANG, SUKWON}, year={2022}, month={Feb}, pages={2100075} }
 @article{yang_kim_ko_choe_lee_rajaram_an_han_kim_shin_et al._2022, title={Soft, wireless electronic dressing system for wound analysis and biophysical therapy}, volume={47}, url={http://dx.doi.org/10.1016/j.nantod.2022.101685}, DOI={10.1016/j.nantod.2022.101685}, abstractNote={Advances in wearable technology promise effective strategies to improve the management of patients, particularly systematic wound monitoring tools combined with wireless therapeutic stimulation provide medical and allied health professions with unprecedented insight for inpatients/outpatients beyond traditional nursing environments. Here, we introduce a soft, wireless electronic wound dressing system that can offer both real-time monitoring of wound status, and biophysical therapy for acceleration of wound repairing rates, in a completely integrated form. Synthetic hydrogel-based sensor responds to a biochemical marker (i.e., cathepsin) released from the inflammatory reaction, while electronic sensor arrays collect humidity, pH, and temperature related to the healing process. Miniaturized circuit components serve wireless measurements via Bluetooth interfaces and provide programmed patterns of electrical/optical stimulations that can promote the recovery of damaged tissues. In vivo demonstrations illustrate capabilities of systematic medical care in freely behaving mice, thereby suggesting potential for use in advanced medic-free wound managements. • A soft, wireless electronic wound manager for monitoring and repairing damaged tissues. • Synthetic hydrogel-incorporated biochemical devices that can analyze inflammatory reaction or progression in skin wounds. • Nurse-free monitoring of real-time wound physiologies using electronic sensor arrays. • Active wound treatments via electrotherapy based on experimental and analytical models.}, journal={Nano Today}, publisher={Elsevier BV}, author={Yang, Seung Min and Kim, Hyerim and Ko, Gwan-Jin and Choe, Jong Chan and Lee, Joong Hoon and Rajaram, Kaveti and An, Byoungha and Han, Won Bae and Kim, Dong-Je and Shin, Jeong-Woong and et al.}, year={2022}, month={Dec}, pages={101685} }
 @article{rajaram_yang_hwang_2022, title={Transient, Biodegradable Energy Systems as a Promising Power Solution for Ecofriendly and Implantable Electronics}, url={https://doi.org/10.1002/aesr.202100223}, DOI={10.1002/aesr.202100223}, abstractNote={Along with the rapid growth in electronics technology, electrical power solutions are developed to provide high‐performance, reliable, and durable energy supplies to various electronic devices. However, conventional power systems are challenging owing to serious after‐use considerations, including environmental costs and biological hazards of eliminating heavy metals and other toxins. Here, this Perspective provides a comprehensive review of recent progress in techniques associated with transient, biodegradable, environment‐friendly energy solutions, including batteries, supercapacitors, energy harvesters utilizing various types of energy sources (e.g., biochemical, physical/mechanical, or thermal), and external energy transfer strategies (e.g., inductive coupling/radiofrequency, photovoltaic, or ultrasonic). Key features, practical examples, existing challenges, and finally possible future directions for transient, biodegradable energy solutions with unmet approaches yet are presented.}, journal={Advanced Energy and Sustainability Research}, author={Rajaram, Kaveti and Yang, Seung Min and Hwang, Suk-Won}, year={2022}, month={Sep} }
 @article{rajaram_yang_hwang_2022, title={Transient, Biodegradable Energy Systems as a Promising Power Solution for Ecofriendly and Implantable Electronics}, url={https://doi.org/10.1002/aesr.202270019}, DOI={10.1002/aesr.202270019}, abstractNote={Transient, Biodegradable Energy Systems In article number 2100223, Suk-Won Hwang, Kaveti Rajaram and Seung Min Yang, review the recent developments in transient, biodegradable energy solutions that completely biodegrade into biologically benign and eco-friendly by-products after a desired operational timeframe. The material options, manufacturing schemes, key features, and practical examples are discussed and perspectives are provided on future directions, challenges in transforming or adopting some of the versatile non-degradable counterpart technologies into transient, biodegradable forms for green and implantable electronics.}, journal={Advanced Energy and Sustainability Research}, author={Rajaram, Kaveti and Yang, Seung Min and Hwang, Suk-Won}, year={2022}, month={Sep} }
 @article{rajaram_kim_2019, title={Flexible wireless power transfer module implemented with aerojet-printing and laser-sintering of rigid NiZn–ferrite ceramic films}, volume={57}, url={http://dx.doi.org/10.1016/j.nanoen.2018.12.021}, DOI={10.1016/j.nanoen.2018.12.021}, abstractNote={Integrating high-performance inorganic ceramic materials into flexible electronics has long been considered a technical challenge because of the conceptual clash between rigidity and flexibility. Moreover, the inevitable high-temperature processing of ceramic materials is incompatible with other materials used in flexible electronics. To address these issues, this work suggests a novel solution to incorporate rigid NiZn–ferrite (NZF) ceramic films into a flexible wireless power transfer (WPT) module via aerojet-printing and laser-sintering processes. The aerojet-printed NZF films exhibited excellent magnetic properties after laser sintering. Although laser sintering induced unexpected microcracks in the NZF films due to the rapid heating of the laser and the high porosity of the printed films, they played an important role in imparting flexibility to the NZF films. The laser-sintered NZF (LSNZF) films were separated from the substrate using an Ag sacrificial layer and then embedded into polydimethylsiloxane (PDMS). The flexibility of the PDMS-embedded LSNZF films was investigated via a bending test. The flexible WPT receiving (Rx) module was completed by combining the PDMS-embedded LSNZF films with an inkjet-printed Ag inductor coil. The performance of the flexible WPT Rx module was verified via wireless activation of light emitting diodes.}, journal={Nano Energy}, publisher={Elsevier BV}, author={Rajaram, Kaveti and Kim, Jihoon}, year={2019}, month={Mar}, pages={317–326} }
 @article{surfactant assisted fabrication of different nanostructures of boehmite by  hydrothermal process_2017, url={http://www.ripublication.com/ijaer17/ijaerv12n11_22.pdf}, journal={International Journal of Applied Engineering Research}, year={2017}, month={Nov} }
 @article{electron scattering in titanium-doped indium oxide transparent conducting oxide thin film by polymer-assisted-solution process_2016, journal={International Journal of Applied Engineering Research}, year={2016}, month={Nov} }