1D 五氧化二钒纳米结构的离子传感性能。

Ion-sensing properties of 1D vanadium pentoxide nanostructures.

机构信息

Departamento de Física e Ciências dos Materiais, Instituto de Física de São Carlos, Universidade de São Paulo, Avenida Trabalhador São-carlense 400, São Carlos, São Paulo, CP 369/13560-970, Brazil.

出版信息

Nanoscale Res Lett. 2012 Jun 18;7(1):310. doi: 10.1186/1556-276X-7-310.

DOI:10.1186/1556-276X-7-310

PMID:22709724

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3475107/

Abstract

The application of one-dimensional (1D) V2O5·nH2O nanostructures as pH sensing material was evaluated. 1D V2O5·nH2O nanostructures were obtained by a hydrothermal method with systematic control of morphology forming different nanostructures: nanoribbons, nanowires and nanorods. Deposited onto Au-covered substrates, 1D V2O5·nH2O nanostructures were employed as gate material in pH sensors based on separative extended gate FET as an alternative to provide FET isolation from the chemical environment. 1D V2O5·nH2O nanostructures showed pH sensitivity around the expected theoretical value. Due to high pH sensing properties, flexibility and low cost, further applications of 1D V2O5·nH2O nanostructures comprise enzyme FET-based biosensors using immobilized enzymes.

摘要

评估了一维（1D）V2O5·nH2O 纳米结构作为 pH 传感材料的应用。通过水热法获得 1D V2O5·nH2O 纳米结构，通过系统控制形貌形成不同的纳米结构：纳米带、纳米线和纳米棒。沉积在 Au 覆盖的基底上，1D V2O5·nH2O 纳米结构被用作基于分离扩展栅 FET 的 pH 传感器中的栅极材料，以替代提供 FET 与化学环境的隔离。1D V2O5·nH2O 纳米结构在预期的理论值附近表现出 pH 敏感性。由于具有高 pH 传感性能、灵活性和低成本，1D V2O5·nH2O 纳米结构的进一步应用包括使用固定化酶的基于酶 FET 的生物传感器。