atr -倏逝波吸收法研究金纳米颗粒在功能化表面的结合动力学

2022 Workshop on Recent Advances in Photonics (WRAP) Pub Date : 2022-03-04 DOI:10.1109/WRAP54064.2022.9758288

Sonatan Das, D. Agarwal, A. Patnaik, V. Rao, T. Kundu

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引用次数: 0

摘要

本文采用基于衰减全反射(ATR)的瞬变波吸收方法，研究了金纳米粒子(AuNPs)在胺功能化表面的结合动力学。结合过程中，实时监测了局域表面等离子体共振(LSPR)的吸收峰。随着AuNPs摩尔浓度的增加，固定化时间缩短。通过扫描电镜分析确定了固定纳米颗粒的密度。研究了金纳米粒子在功能化表面上的浓度依赖固定，以探索和理解选择性LSPR表面在基于等离子体的光子传感平台开发中的作用。

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Study of Gold nanoparticles binding dynamics on functionalized surface by ATR-evanescent wave absorption method

In this work, gold nanoparticles (AuNPs) binding dynamics have been studied on the amine-functionalized surface by the attenuated total reflectance (ATR) based evanescent wave absorption method. During binding, the real-time absorption peak of localized surface plasmon resonance (LSPR) was monitored. The immobilization time has been found to be decreased with the higher molar concentration of AuNPs. The density of immobilized nanoparticles was confirmed by SEM micrograph analysis. The concentration-dependent gold nanoparticle immobilization on a functionalized surface has been studied to explore and understand the role of selective LSPR surface for plasmonic-based photonic sensing platform development.

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2022 Workshop on Recent Advances in Photonics (WRAP)

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