@article{ea3eaa5d2ce84e8fb11a9b8e0a6dbf36,
title = "Research Update: Nanoscale surface potential analysis of MoS2 field-effect transistors for biomolecular detection using Kelvin probe force microscopy",
abstract = "We used high-resolution Kelvin probe force microscopy (KPFM) to investigate the immobilization of a prostate specific antigen (PSA) antibody by measuring the surface potential (SP) on a MoS2 surface over an extensive concentration range (1 pg/ml-100 μg/ml). After PSA antibody immobilization, we demonstrated that the SP on the MoS2 surface characterized by KPFM strongly correlated to the electrical signal of a MoS2 bioFET. This demonstration can not only be used to optimize the immobilization conditions for captured molecules, but can also be applied as a diagnostic tool to complement the electrical detection of a MoS2 FET biosensor.",
author = "Kim, {Min Hyung} and Heekyeong Park and Hyungbeen Lee and Kihwan Nam and Seokhwan Jeong and Inturu Omkaram and Yoon, {Dae Sung} and Lee, {Sei Young} and Sunkook Kim and Lee, {Sang Woo}",
note = "Funding Information: This work is partly supported by the U.S. National Science Foundation under Grant No. CMMI 826276, by the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT, and Future Planning (Grant Nos. NRF-2014M3A9D7070732, NRF-2013M3C1A3059590, NRF-2015R1A1A1A05027488, NRF-2013R1A2A2A03005767, and NRF-2013R1A1A2053613), and by the Yonsei University Future-leading Research Initiative of 2015 (2015-22-0059). This research was partially supported by the Commercialization Promotion Agency for R and D Outcomes (COMPA) funded by the Ministry of Science, ICT, and Future Planning (MISP). The authors have no competing financial interests to declare. Publisher Copyright: {\textcopyright} 2016 Author(s).",
year = "2016",
month = oct,
day = "1",
doi = "10.1063/1.4964488",
language = "English",
volume = "4",
journal = "APL Materials",
issn = "2166-532X",
publisher = "American Institute of Physics Publising LLC",
number = "10",
}