Boi Hoa San (성균관대학교) | 한빛사논문 > 한빛사

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성균관대학교

ACS Nano, Publication Date (Web): November 26, 2014, 8 (12), pp 12120-12129 | DOI: 10.1021/nn503178t Combining Protein-Shelled Platinum Nanoparticles with Graphene to Build a Bionanohybrid Capacitor

Boi Hoa San^†‡#, Jang Ah Kim^†#, Atul Kulkarni^§∥, Sang Hyun Mo^h†‡∥, Sreekantha Reddy Dugasani^⊥, Vinod Kumar Subramani^‡, Nanasaheb D. Thorat^‡, Hyun Ho Lee^#, Sung Ha Park^⊥, Taesung Kim^*†§, and Kyeong Kyu Kim^*†‡^† Sungkyunkwan Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 440-746, Republic of Korea

^‡ Department of Molecular Cell Biology, Samsung Biomedical Research Institute, Sungkyunkwan University School of Medicine, Suwon 440-746, Republic of Korea

^§ School of Mechanical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea

^∥ BIO-FD&C & Co., Smart Valley A-510, Songdomirae-ro 30, Yeongsu-gu, Incheon, Republic of Korea

^⊥ Department of Physics, Sungkyunkwan University, Suwon 440-746, Republic of Korea

^# Department of Chemical Engineering, Myongji University, Yongin 449-728, Republic of Korea

^#B. H. San and J. A. Kim contributed equally to this work.

^*Corresponding authors

Abstract

The electronic properties of biomolecules and their hybrids with inorganic materials can be utilized for the fabrication of nanoelectronic devices. Here, we report the charge transport behavior of protein-shelled inorganic nanoparticles combined with graphene and demonstrate their possible application as a bionanohybrid capacitor. The conductivity of PepA, a bacterial aminopeptidase used as a protein shell (PS), and the platinum nanoparticles (PtNPs) encapsulated by PepA was measured using a field effect transistor (FET) and a graphene-based FET (GFET). Furthermore, we confirmed that the electronic properties of PepA-PtNPs were controlled by varying the size of the PtNPs. The use of two poly(methyl methacrylate) (PMMA)-coated graphene layers separated by PepA-PtNPs enabled us to build a bionanohybrid capacitor with tunable properties. The combination of bioinorganic nanohybrids with graphene is regarded as the cornerstone for developing flexible and biocompatible bionanoelectronic devices that can be integrated into bioelectric circuits for biomedical purposes.

Keywords: bionanohybrid; capacitor; graphene; pepA; platinum nanoparticle; protein shell

논문정보

형식Research article
게재일2014년 11월 (BRIC 등록일 2017-10-24)
연구진국내 연구진
분야 의약학 > 분자세포의학

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