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  1. No Access

    Article

    Facile synthesis of palladium-decorated three-dimensional conducting polymer nanofilm for highly sensitive H2 gas sensor

    Hydrogen gas is a topic of considerable interest because of its critical importance to various applications in the fuel cell, aerospace and automotive industries. However, because it is highly flammable at low...

    Kyung Hee Cho, Haejun Yu, Jun Seop Lee, Jyongsik Jang in Journal of Materials Science (2020)

  2. Article

    Open Access

    Peptide hormone sensors using human hormone receptor-carrying nanovesicles and graphene FETs

    Hormones within very low levels regulate and control the activity of specific cells and organs of the human body. Hormone imbalance can cause many diseases. Therefore, hormone detection tools have been develop...

    Sae Ryun Ahn, Ji Hyun An, Seung Hwan Lee, Hyun Seok Song in Scientific Reports (2020)

  3. Article

    Open Access

    Highly Omnidirectional and Frequency Controllable Carbon/Polyaniline-based 2D and 3D Monopole Antenna

    Highly omnidirectional and frequency controllable carbon/polyaniline (C/PANI)-based, two- (2D) and three-dimensional (3D) monopole antennas were fabricated using screen-printing and a one-step, dimensionally c...

    Keun-Young Shin, Minkyu Kim, James S. Lee, Jyongsik Jang in Scientific Reports (2015)

  4. Article

    Open Access

    Flower-like Palladium Nanoclusters Decorated Graphene Electrodes for Ultrasensitive and Flexible Hydrogen Gas Sensing

    Flower-like palladium nanoclusters (FPNCs) are electrodeposited onto graphene electrode that are prepared by chemical vapor deposition (CVD). The CVD graphene layer is transferred onto a poly(ethylene naphthal...

    Dong Hoon Shin, Jun Seop Lee, Jaemoon Jun, Ji Hyun An, Sung Gun Kim in Scientific Reports (2015)

  5. Article

    Open Access

    Highly Sensitive and Multifunctional Tactile Sensor Using Free-standing ZnO/PVDF Thin Film with Graphene Electrodes for Pressure and Temperature Monitoring

    We demonstrate an 80-μm-thick film (which is around 15% of the thickness of the human epidermis), which is a highly sensitive hybrid functional gauge sensor and was fabricated from poly(vinylidene fluoride) (P...

    James S. Lee, Keun-Young Shin, Oug Jae Cheong, Jae Hyun Kim in Scientific Reports (2015)

  6. No Access

    Article

    Highly Flexible Energy Storage Electrodes Based on In Situ Synthesis of Graphene/Polyselenophene Nanohybrid Materials

    A new class of graphene–polyselenophene (PSe) hybrid nanocomposite was successfully synthesized using an in situ synthetic method. The synthesized graphene–PSe nanocomposite exhibited unique properties including ...

    ** Wook Park, Jyongsik Jang in MRS Online Proceedings Library (2014)

  7. No Access

    Article

    The Fabrication of High-Performance Flexible Mercury Aptasensor Based on Graphene

    Liquid-ion gated FET-type flexible graphene-based aptasensor was fabricated for Hg detection in real world samples. Single-layer graphene was grown and transferred onto a flexible substrate and integrated into...

    Ji Hyun An, Jyongsik Jang in MRS Online Proceedings Library (2014)

  8. No Access

    Article

    A Facile Synthesis of Graphene Quantum Dots via Size-Selective Precipitation and Their Application in GQD-layer Modified DSSC

    A novel approach to synthesize highly luminescent graphene quantum dots (GQDs) with well-defined sizes was explored based on simple oxidation of herringbone-type carbon nanofibers (HCNFs) and size-selective pr...

    Jaehoon Ryu, Jyongsik Jang in MRS Online Proceedings Library (2014)

  9. No Access

    Article

    CPT Encapsulated Silica-titania Hollow Nanoparticle Targeting SK-BR-3 Cells for efficient Anticancer treatment

    HER-conjugated hollow nanoparticles (HER-HNP, ca. 50 nm in diameter) are fabricated using a dissolution and re-deposition method and used to encapsulate camptothecin (CPT). The HER-HNP-CPT is used as an anti-c...

    Yoonsun Jang, Jyongsik Jang in MRS Online Proceedings Library (2014)

  10. No Access

    Article

    The effect of nanoparticle on microdomain alignment in block copolymer thin films under an electric field

    Controlling microdomain structure of block copolymers (BCPs) under electric field has been one of the most challenging research tasks. In this study, we examined the effect of nanoparticles on the microdomain ...

    Joonwon Bae, Seon Joo Park, Oh Seok Kwon, Jyongsik Jang in Journal of Materials Science (2014)

  11. Article

    Open Access

    Human dopamine receptor nanovesicles for gate-potential modulators in high-performance field-effect transistor biosensors

    The development of molecular detection that allows rapid responses with high sensitivity and selectivity remains challenging. Herein, we demonstrate the strategy of novel bio-nanotechnology to successfully fab...

    Seon Joo Park, Hyun Seok Song, Oh Seok Kwon, Ji Hyun Chung in Scientific Reports (2014)

  12. No Access

    Chapter

    Conducting Polymer Nanomaterial-Based Sensor Platform for Bioelectronic Nose

    Significant efforts in the fabrication of conducting polymer (CP) nanomaterials have enabled various electronic devices such as solar cells, memory devices, batteries, and field-effect transistors (FETs). Spec...

    Oh Seok Kwon, Jyongsik Jang in Bioelectronic Nose (2014)

  13. No Access

    Article

    Synthesis of silver nanoparticles decorated polypyrrole nanotubes for antimicrobial application

    Silver-nanoparticle-decorated polypyrrole (PPy) nanotubes (NTs) were fabricated by vapor deposition polymerization (VDP)-mediated hard-template method. Fe/Ag cations were attached on the wall of an AAO templat...

    Eunyu Park, Hyunyoung Kim, Jooyoung Song, Hyuntaek Oh, Hee Song in Macromolecular Research (2012)

  14. No Access

    Article

    Influence of amorphous polymer nanoparticles on the crystallization behavior of poly(vinyl alcohol) nanocomposites

    The crystallization behavior of poly(vinyl alcohol) (PVA) in the presence and absence of polypyrrole nanoparticles (PPy NPs) was investigated in terms of the heterogeneous nucleation effect of PPy NPs using FT...

    Kyung ** Lee, Jihye Lee, **-Yong Hong, Jyongsik Jang in Macromolecular Research (2009)

  15. No Access

    Article

    Synthesis of mesostructured conducting polymer-carbon nanocomposites and their electrochemical performance

    A conducting polymer layer was introduced into the pore surface of mesoporous carbon via vapor infiltration of a monomer and subsequent chemical oxidative polymerization. The polypyrrole, conducting polymer ha...

    Moonjung Choi, Byungkwon Lim, Jyongsik Jang in Macromolecular Research (2008)

  16. No Access

    Article

    Versatile strategies for fabricating polymer nanomaterials with controlled size and morphology

    The development of reliable synthetic routes to polymer nanomaterials with well-defined size and morphology is a critical research topic in contemporary materials science. The ability to generate nanometer-siz...

    Hyeonseok Yoon, Moonjung Choi, Kyung ** Lee, Jyongsik Jang in Macromolecular Research (2008)

  17. No Access

    Article

    Anisotropically ordered liquid crystalline epoxy network on carbon fiber surface

    Anisotropic orientation of liquid crystalline epoxy(LCE) resin on carbon fiber(CF) surface was investigated and it was correlated with curing behavior and thermomechanical properties of LCE. Anisotropic orient...

    Jun Yeob Lee, Jyongsik Jang in Polymer Bulletin (2007)

  18. No Access

    Article

    Fabrication of polyaniline nanoparticles using microemulsion polymerization

    Polyaniline (PANI) nanospheres, 4 nm in diameter, were fabricated by the microemulsion polymerization of octyltrimethyl ammonium bromide (OTAB). The size of the PANI nanoparticles could be controlled as functi...

    Jyongsik Jang, Jungseok Ha, Sunhee Kim in Macromolecular Research (2007)

  19. No Access

    Chapter

    Conducting Polymer Nanomaterials and Their Applications

    A paradigm shift takes place in the fabrication of conducting polymers from bulky features with microsize to ultrafine features with nanometer range. Novel conducting polymer nanomaterials require the potentia...

    Jyongsik Jang in Emissive Materials Nanomaterials (2006)

  20. No Access

    Article

    Impact behavior of aramid fiber/glass fiber hybrid composite: Evaluation of four-layer hybrid composites

    Aramid fiber/glass fiber hybrid composites were fabricated to investigate the impact behavior of four-layer composites through the analysis of delamination area. The effect of position and content of aramid la...

    Rohchoon Park, Jyongsik Jang in Journal of Materials Science (2001)

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