Papers

(*Corresponding author & +Co-first authors)

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- Submitted manuscript -

• Functional silk-protein-based nanocomposites for light-stimulated and highly efficient triboelectric nanogenerators and charge storage devices

• Naturally derived quercetin fluorochrome in Yeonnokjam silk as a fluorescent dye with a large Stokes shift and sensing capability

• Recording and revealing 2.5D nanopatterned hidden information on silk protein bioresists

• Conductivity-adjustable biosemiconductors derived from biomaterials and their utilization for protein-based synaptic devices

• Multifunctional and skin-compatible electronic-tattoos based on hybrid bio-nanomaterials as electrically functionalized skins

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2024

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Chemical Engineering Journal 489, 151248 [Link]

High power triboelectric nanogenerator based on nanofibers of silk protein and PVBVA and its motion sensing applications

By Shalik Ram Joshi and Sunghwan Kim*

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Journal of Natural Fibers [under revision]

Naturally bred Korean silkworm cocoon showing strong green fluorescence and its textile-based environmental sensing applications

By Rakesh Kumar Jha, Seong-Wan Kim, and Sunghwan Kim*

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Chemical Engineering Research and Design 203, 293 [Link]

Potentiality of PLA 3D printed macro-structured feed spacers with a rational and facile layout for improved MD desalination performance

By Shalik Ram Joshi+, Saikat Sinha Ray+, Sunghwan Kim*, and Young-Nam Kwon*

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Biomedical Engineering Letters [Link]

Ultrathin silk nanofiber–carbon nanotube skin tattoos for wirelessly triggered and temperature feedbacked transdermal drug delivery

By Shalik Ram Joshi+, Ajay Pratap+, and Sunghwan Kim*

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International Journal of Industrial Entomology and Biomaterials 48, 19 [Link]

Fluorescent properties of Daehwangjam, Golden Silk, and Juhwangjam and their diminishing upon HCl vapor exposure

By Rakesh Kumar Jha, Seong-Wan Kim, and Sunghwan Kim*

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Korean Journal of Optics and Photonics (한국광학회지) 35, 30 [Link]

Enhanced fluorescence from silk protein by TiO₂ scatters (산화티타늄 나노입자에 의한 실크 단백질 형광증폭 연구)

By Rakesh Kumar Jha and Sunghwan Kim*

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2023

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ACS Biomaterials Science & Engineering 9, 6390 [Link]

Microscopic projection lithography for integrating metallic microstructures on silk protein for biodevice applications

By Juwan Choi and Sunghwan Kim*

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Materials Today Bio 20, 100642 [Link]

A biomaterial-silicon junction photodetector

By Narendar Gogurla, Abdul Wahab, and Sunghwan Kim*

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Advanced Science 10, 2206848 [Link]

DNA-nanocrystal assemblies for environmentally responsive and highly efficient energy harvesting and storage

By Mallikarjuna Reddy Kesama and Sunghwan Kim*

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Advanced Materials Technologies 8, 2201917 [Link]

Ecofriendly polymer-graphene-based conductive ink for multifunctional printed electronics

By Shalik Ram Joshi, Sumit Kumar, and Sunghwan Kim*

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Advanced Electronic Materials 9, 2201095 [Link]

Ultrathin, breathable, permeable, and skin-adhesive charge storage electronic tattoos based on biopolymer nanofibers and carbon nanotubes

By Shalik Ram Joshi, Ajay Pratap, Narendar Gogurla, and Sunghwan Kim*

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2022

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ACS Applied Materials & Interfaces 14, 56623 [Link]

Engineering silk protein to modulate polymorphic transitions for green lithography resists

By Soon-Chun Chung, Joon-Song Park, Rakesh Kumar Jha, Jieun Kim, Jinha Kim, Muyoung Kim, Juwan Choi, Hongdeok Kim, Da-Hye Park, Narendar Gogurla, Tae-Yun Lee, Heonsu Jeon, Ji-Yong Park, Joonmyung Choi, Ginam Kim,* Sunghwan Kim*

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Current Applied Physics 41, 131 [Link]

Brush drawing multifunctional electronic textiles for human-machine interfaces

By Narendar Gogurla, Ajay Pratap, In Chul Um, and Sunghwan Kim*

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ACS Applied Electronic Materials 4, 1124 [Link]

Elastic and skin-contact triboelectric nanogenerators and their applicability in energy harvesting and tactile sensing

By Ajay Pratap+, Narendar Gogurla+, and Sunghwan Kim*

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Advanced Materials Technologies 7, 2101271  [Link]

Architecting silk protein and melanin for photo-responsive and self-healable optoelectronic skins

By Abdul Wahab+, Narendar Gogurla+, Ji-Yong Park, and Sunghwan Kim*

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2021

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Advanced Energy Materials 11, 2100801 [Link]

(Inside cover paper, Hot topic paper: Flexible Electronics)

Self-powered and imperceptible electronic tattoos based on silk protein nanofiber and carbon nanotubes for human-machine interfaces

By Narendar Gogurla and Sunghwan Kim*

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Journal of the Korean Physical Society 79, 64 [Link]

Photothermal, ultra-thin, and biocompatible carbon nanotube/silk nanofiber membrane

By Narendar Gogurla, Abdul Wahab, and Sunghwan Kim*

 

Advanced Materials 33, 2008308 [Link]

(Frontispiece paper, Hot topic paper: Carbon, Graphite, and Graphene, and Flexible Electronics)

Multifunctional and ultrathin electronic tattoos for on-skin diagnostic and therapeutic applications

By Narendar Gogurla, Yisub Kim, Suyoung Cho, Jangsun Kim, and Sunghwan Kim*

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Optical Materials 114, 110932 [Link]

All-polymer silk-fibroin optical planar waveguides

By Vaclav Prajzler, Kyungtaek Min, Sunghwan Kim, and Pavla Nekvindova*

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~2020

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ACS Applied Materials & Interfaces 12, 55231 [Link]

Multi-stimuli-responsive optical hydrogel nanomembrane to construct planar color display boards for detecting local environmental changes 

By Muhammad Umar+, Dongwan Son+,Sara Arif, Myungwoong Kim*, and Sunghwan Kim*

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Nano Energy 77, 105242 [Link]

Self-powered artificial skin made of engineered silk protein hydrogel 

By Narendar Gogurla, Biswajit Roy, and Sunghwan Kim*

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Optical Materials Express 10, 818 (Editor's pick) [Link]

Inkjet-printed lasing silk text on reusable distributed feedback boards 

By Muhammad Umar+,Wenyi Li+, Giorgio Bonacchini+, Kyungtaek Min, Sara Arif, Fiorenzo G. Omenetto*, and Sunghwan Kim*

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Advanced Materials Technologies 5, 1900936 [Link]

A skin-Inspired, interactive, and flexible optoelectronic device with hydrated melanin nanoparticles in a protein hydrogel-elastomer hybrid 

By Narendar Gogurla+,Biswajit Roy+, Kyungtaek Min, Ji-Yong Park, and Sunghwan Kim*

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APL Photonics 4, 120901 (Perspective review article) [Link]

Advances in hydrogel photonics and their applications 

By Muhammad Umar, Kyungtaek Min*, and Sunghwan Kim*

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Scientific Reports 9, 16266 [Link]

Random lasing and amplified spontaneous emission from silk inverse opals: Optical gain enhancement via protein scatterers

By Muhammad Umar+, Kyungtaek Min+, Sookyung Kim, and Sunghwan Kim*

 

Nano Energy 62, 674 [Link]

Skin-contact actuated single-electrode protein triboelectric nanogenerator and strain sensor for biomechanical energy harvesting and motion sensing

By Narendar Gogurla, Biswajit Roy, Ji-Yong Park, and Sunghwan Kim*

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ACS Omega 4, 9010 [Link]

An interacting metal-insulator-metal resonator by nanoporous silver and silk protein membranes and its water sensing application

By Sara Arif, Muhammad Umar, and Sunghwan Kim*

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Current Optics and Photonics 3, 40 [Link]

Tuning photoluminescence of biological light emitters via silk protein based resonators

By Sara Arif, Muhammad Umar, and Sunghwan Kim*

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Optics Express 26, 33575 [Link]

Humidity sensing using THz metamaterials with silk protein fibroin

By Hwan Sik Kim, Sung Ho Cha, Biswajit Roy, Sunghwan Kim, and Yeong-Hwan Ahn*

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Scientific Reports 8, 9598 [Link]

Silk protein nanofibers for highly efficient, eco-friendly, optically translucent, and multifunctional air filters

By Kyungtaek Min+, Sookyung Kim+, and Sunghwan Kim*

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ACS Nano 12, 5637 [Link]

Protein-based electronic skin akin to biological tissues

By Minsik Jo+, Kyungtaek Min+, Biswajit Roy, Sookyoung Kim, Sangmin Lee, Ji-Yong Park, and Sunghwan Kim*

 

Optical Materials 80, 241 [Link]

Ultra-thin, conformal, and hydratable color-absorbers using silk protein hydrogel

By Muhammad Umar+, Kyungtaek Min+, Minsik Jo, and Sunghwan Kim*

 

Nano Letters 18, 1930 [Link]

High-contrast infrared absorption spectroscopy via mass-produced coaxial zero-mode resonators with sub-10-nm gaps

By Daehan Yoo, Daniel A. Mohr, Ferran Vidal-Codina, Aurelian John-Herpin, Minsik Jo, Sunghwan Kim, Joseph R Matson, Joshua D. Caldwell, Heonsu Jeon, Ngoc Cuong Nguyen, Luis Martín-Moreno, Jaime Peraire, Hatice Altug, and Sang-Hyun Oh*

 

Materials 11, 112 [Link]

The Investigation of the waveguiding properties of silk fibroin from the visible to near-infrared spectrum

By Vaclav Prajzler*, Kyungtaek Min, Sunghwan Kim, and Pavla Nekvindova*

 

Science Advances 4, e1602796 [Link]

Anderson localizations and photonic band-tail states observed in compositionally disordered platform

By Myungjae Lee, Jeongkug Lee, Sunghwan Kim, Ségolène Callard, Christian Sessal, and Heonsu Jeon*

 

Sensors & Actuators B: Chemical 255, 3207 [Link]

A physically transient and eco-friendly distributed feedback laser chemosensor for detecting acid vapor

By Muhammad Umar, Kyungtaek Min*, and Sunghwan Kim*

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Applied Physics Letters 111, 231103 [Link]

Single transverse mode protein laser

By Itir Bakis Dogru+, Kyungtaek Min+, Muhammad Umar, Houman Bahmani Jalali, Deniz Conkar, Elif Nur Firat Karalar, Sunghwan Kim*, and Sedat Nizamoglu*

 

Scientific Reports 7, 5448 [Link]

Colored and fluorescent nanofibrous silk as a physically transient chemosensor and vitamin deliverer

By Kyungtaek Min+, Sookyoung Kim+, Chang Gun Kim, and Sunghwan Kim*

 

Proceedings of the National Academy of Sciences 114, 6185 [Link]

Deformable and conformal silk hydrogel inverse opal

By Kyungtaek Min+, Sookyoung Kim+, and Sunghwan Kim*

 

Annalen der Physik 529, 1700034 [Link]

Single-mode distributed feedback laser operation with no dependence on the morphology of the gain medium

By Muhammad Umar+, Kyungtaek Min+, Heonsu Jeon, and Sunghwan Kim*

 

Nanotechnology 28, 115201 [Link]

Silk protein as a new optically transparent adhesion layer for an ultra-smooth sub-10 nm gold layer

By Kyungtaek Min+, Muhammad Umar+, Shinyoung Ryu, Soonil Lee, and Sunghwan Kim*

 

RSC Advances 7, 574 [Link]

Biocompatible, optically transparent, patterned, and flexible electrodes and radio-frequency antennas prepared from silk protein and silver nanowire networks

By Kyungtaek Min+, Muhammad Umar+, Haekyo Seo, Jong Hyuk Yim, Dong Gun Kam, Heonsu Jeon, Soonil Lee, and Sunghwan Kim*

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Advanced Optical Materials 4, 1738 [Link]

Physically transient distributed feedback laser using optically activated silk bio-ink 

By Hyunho Jung, Kyungtaek Min, Heonsu Jeon*, and Sunghwan Kim*

 

RSC Advances 6, 39330 [Link]

Eco-friendly photolithography using water-developable pure silk fibroin 

By Joonhan Park, Sung-Gyu Lee, Benedetto Marelli, Myungjae Lee, Taehyung Kim, Hye-Keun Oh, Heonsu Jeon, Fiorenzo G. Omenetto, and Sunghwan Kim*

 

Optical Materials Express 6, 993 [Link]

Natural silk protein as a new broadband nonlinear optical material 

By Byungjic Lee, Hyunsoo Kwon, Sunghwan Kim*, and Fabian Rotermund*

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ACS Photonics 2, 1675 [Link] (Highlighted at Nature Photonics)

Chemically tunable, biocompatible, cost-effective metal-insulator-metal resonators using silk protein and ultrathin silver films

By Hyunsoo Kwon and Sunghwan Kim*

 

Advanced Materials 27, 6728 [Link]

Fabrication of tunable, high-refractive index titanate-silk nanocomposites on the micro- and nanoscale

By Giovanni Perotto, Michela Cittadini, Hu Tao, Sunghwan Kim, Miaomiao Yang, David L. Kaplan, Alessandro Martucci, and Fiorenzo G. Omenetto*

 

Optical Materials 47, 333 [Link]

A fully biocompatible poly(ethylene glycol)-gold plasmonic crystal for optical sensing

By Hyunsoo Kwon, Shinyoung Ryu, Soonil Lee, and Sunghwan Kim*

 

Nano Letters 15, 3358 [Link]

A highly tunable and fully biocompatible silk nanoplasmonic optical sensor

By Myungjae Lee, Heonsu Jeon, and Sunghwan Kim*

 

Lab on a Chip 15, 642 [Link]

A fully biocompatible single-mode distributed feedback laser

By Yunkyoung Choi, Heonsu Jeon, and Sunghwan Kim*

 

Nanoscale 7, 426 [Link]

Novel and simple route to fabricate fully biocompatible plasmonic mushroom arrays adheres on silk biopolymer

By Joonhan Park+, Yunkyoung Choi+, Myungjae Lee+, Heonsu Jeon, and Sunghwan Kim*

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IEEE Photonics Technology Letters 26, 1259 [Link]

Nearly perfect absorption by bimetallic plasmonic crystal and its application as sensor

By Sunghwan Kim*

 

Nature Nanotechnology 9, 306 [Link] 

All-water-based electron beam lithography using silk as a positive, negative, and biofunctional resist

By Sunghwan Kim+, Benedetto Marelli+, Mark A. Brenckle, Alexander N. Mitropoulos, Eun-Seok Gil, Konstantinos Tsioris, Hu Tao, David L. Kaplan, and Fiorenzo G. Omenetto*

 

Advanced Materials 26, 1105 [Link]

Synthesis of silk fibroin micro- and submicron spheres using a co-flow capillary device

By Alexander N. Mitropoulos, Giovanni Perotto, Sunghwan Kim, Benedetto Marelli, David L. Kaplan, and Fiorenzo G. Omenetto*

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New Physics: Sae Mulli 63, 851 [Link]

New silk road toward high technology

By Sunghwan Kim*

 

Physical Review A 88, 023804 [Link]

Simultaneous observation of extended and localized modes in celluar disordered photonic crystals

By Sunghwan Kim, Jeongkug Lee, Heonsu Jeon*, Segolene Callard, Christian Seassal, Kyung-Deok Song, and Hong-Gyu Park

 

Optics Express 21, 8897 [Link]

Silk protein based hybrid photonic-plasmonic crystal

By Sunghwan Kim, Alexander N. Mitropoulos, Joshua D. Spitzberg, David L. Kaplan, and Fiorenzo G. Omenetto*

 

Applied Physics Express 6, 042703 [Link]

Nano stepping-stone laser

By Sihan Kim, Sungmo Ahn, Kyungtaek Min, Sunghwan Kim, and Heonsu Jeon*

 

Advanced Materials 25, 2409 [Link]

Protein-protein nanoimprinting of silk fibroin films

By Mark A. Brenckle, Hu Tao, Sunghwan Kim, Mark Paquette, David L. Kaplan, and Fiorenzo G. Omenetto*

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Nature Photonics 6, 818 (2012) [Link]

Silk inverse opals

By Sunghwan Kim, Alexander N. Mitropoupls, Joshua D. Spitzberg, Hu Tao, David L. Kaplan, and Fiorenzo G. Omenetto*

 

Applied Physics Letters 101, 091110 (2012)

Low threshold blue lasing from silk fibroin thin films

By Stefano Toffanin+, Sunghwan Kim+, Susanna Cavallini, Marco Natali, Valentina Benfesati, Jason J. Amsden, David L. Kaplan, Roberto Zamboni*, Michele Muccini*, and Fiorenzo G. Omenetto*

 

Applied Physics Express 4, 122101 (2011)

Operation of photonic crystal laser in continuous-wave mode for 18 hours

By Sihan Kim, Sunghwan Kim, Jeongkug Lee, Heonsu Jeon*, and Hyo Jin Kim

 

IEEE Photonics Technology Letters 23, 1454 (2011)

Free-standing GaN-based photonic crystal band-edge laser

By Dong-Uk Kim, Sunghwan Kim, Jeongkug Lee, Seong-Ran Jeon, and Heonsu Jeon*

 

Optics Express 19, 2105 (2011)

Milliwatt-level fiber-coupled laser power from photonic crystal band-edge laser

By Sunghwan Kim, Sungmo Ahn, Jeongkug Lee, and Heonsu Jeon*

 

Optics Express 19, 1 (2011)

Over 1 hour continuous-wave operation of photonic crystal lasers

By Sunghwan Kim, Jeongkug Lee, and Heonsu Jeon*

 

Optics Express 18, 7685 (2010)

Band-edge lasers based on randomly mixed photonic crystals

By Sunghwan Kim, Sungjoon Yoon, Hyojun Seok, Jeongkug Lee, and Heonsu Jeon*

 

Journal of the Optical Society of America B 26, 1330 (2009)

High power and large alignment tolerance fiber coupling of honeycomb-lattice photonic crystal Γ-point band-edge laser

By Sunghwan Kim, Yeonsang Park, Kyungwook Hwang, Jeongkug Lee, Heonsu Jeon*, and Hyo Jin Kim

 

Applied Physics Letters 94, 133503 (2009)

Fiber-coupled surface-emitting photonic crystal band edge laser for biochemical sensor applications

By Sunghwan Kim, Jeongkug Lee, Heonsu Jeon*, and Hyo Jin Kim

 

IEEE Transactions on Electron Devices 55, 523 (2008)

GaN light-emitting diode with deep-angled mesa sidewalls for enhanced light emission in the surface-normal direction

By Jae-Soong Lee, Joonhee Lee, Sunghwan Kim, and Heonsu Jeon*

 

Physica Status Solidi C 4, 2625 (2007)

Fabrication of reflective GaN mesa sidewalls for the application to high extraction efficiency LEDs

By Jae-Soong Lee, Joonhee Lee, Sunghwan Kim, and Heonsu Jeon*

 

Applied Physics Letters 90, 171115 (2007)

Butt-end fiber coupling to a surface-emitting Γ-point photonic crystal band edge laser

By Yeonsang Park, Sunghwan Kim, Chaeyoung Moon, Heonsu Jeon*, and Hyo Jin Kim

 

Sensors and Actuators B: Chemical 124, 147 (2007)

Fluorescence amplification using colloidal photonic crystal platform in sensing dye-labeled deoxyribonucleic acids

By Hee Jin Kim, Sunghwan Kim, Heonsu Jeon*, Jangseok Ma, Soo Hyung Choi, Soosuk Lee, Christopher Ko, and Wounjhang Park

 

IEEE Photonics Technology Letters 18, 1588 (2006)

GaN-based light-emitting diode structure with monolithically integrated sidewall deflectors for enhanced surface emission

By Jae-Soong Lee, Joonhee Lee, Sunghwan Kim, and Heonsu Jeon*

 

Applied Physics Letters 83, 231 (2003)

Photonic crystal waveguides with multiple 90 degrees bends

By Young-Geun Roh, Sungjoon Yoon, Sunghwan Kim, Heonsu Jeon*, Seung-Ho Park, Q-Han Park, and Inkyu Park