Kim, Sang Hui Yoo, Yong Kyoung Chae, Myung-Sic Kang, Ji Yoon Kim, Tae Song Hwang, Kyo Seon Lee, Jeong Hoon 2024-01-20T13:30:55Z 2024-01-20T13:30:55Z 2021-09-05 2012-12-03 0003-6951 https://pubs.kist.re.kr/handle/201004/128561 The use of highly selective reversible peptide receptors is essential for cantilever-based electronic nose systems. Here, we present the effects of water molecules on the binding kinetics of 2,4-dinitrotoluene (DNT) molecules with DNT selective peptide receptors linked with a tri(ethylene glycol)-based (TEG) self-assembled monolayer (SAM) in a gas phase in a piezoelectric microcantilever sensor. We observed 1.5-times faster reaction kinetics in wet conditions compared with dry conditions. In a dissociation step, distinctive differences in the recovery time were observed in wet conditions, which could be attributed to water retention efficiency of TEG-linkers for the conformation of biomolecules. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4769969] English AMER INST PHYSICS POLYMERS SENSORS Effects of water molecules on binding kinetics of peptide receptor on a piezoelectric microcantilever Article 10.1063/1.4769969 1 APPLIED PHYSICS LETTERS, v.101, no.23 APPLIED PHYSICS LETTERS 101 23 scie scopus 000312243900095 2-s2.0-84870939040 Physics, Applied Physics Article POLYMERS SENSORS Binding kinetics microcantilever peptide receptor