Electrochemical functionalization of single-walled carbon nanotubes with amine-terminated dendrimers encapsulating Pt nanoparticles: Toward facile field-effect transistor-based sensing platforms
- Authors
- Lee, Chang-Seuk; Ju, Youngwon; Kim, Joohoon; Kim, Tae Hyun
- Issue Date
- 1-Dec-2018
- Publisher
- Elsevier BV
- Keywords
- Field-effect transistor (FET); Carbon nanotube (CNT); Dendrimer-encapsulated nanoparticle (DEN); Glutamate
- Citation
- Sensors and Actuators, B: Chemical, v.275, pp 367 - 372
- Pages
- 6
- Journal Title
- Sensors and Actuators, B: Chemical
- Volume
- 275
- Start Page
- 367
- End Page
- 372
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/5365
- DOI
- 10.1016/j.snb.2018.08.030
- ISSN
- 0925-4005
- Abstract
- We present a method for functionalization of single-walled carbon nanotubes (CNTs) with amine-terminated dendrimers encapsulating catalytic nanoparticles, and demonstrate the feasibility of functionalized CNTs as efficient field-effect transistor (FET)-sensing platforms. As a model system, we synthesized N dendrimer-encapsulated nanoparticles (DENs) using amine-terminated sixth-generation poly(amidoamine) dendrimers, and functionalized CNT-based FET channels with N DENs via electro-oxidative grafting of the terminal amines of dendrimers onto the surface of CNTs. We also demonstrated spatially-controlled surface functionalization of CNTs and subsequent modification of the functionalized CNT-based FET channels with glutamate oxidases for efficient FET-based sensing of glutamates. Our approach could facilitate the functionalization of CNTs with a variety of catalytic nanoparticles and biologically active materials, enabling the development of sensitive and selective FET-based sensor devices.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
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