量子点/多孔硅光子晶体生物传感器用于检测链霉亲和素

王佳佳; 李彦宇; 贾振红

doi:10.13568/j.cnki.651094.2019.02.002

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量子点/多孔硅光子晶体生物传感器用于检测链霉亲和素

更新时间：2026-01-21

- 量子点/多孔硅光子晶体生物传感器用于检测链霉亲和素
- Journal of Xinjiang University (Natural Science Edition in Chinese and English) Vol. 36, Issue 2, Pages: 132-137(2019)
- 作者机构：
  
  1. 新疆大学信息科学与工程学院计算机科学与技术博士后流动站
  2. 新疆大学物理科学与技术学院
- 作者简介：
- 基金信息：
- DOI：10.13568/j.cnki.651094.2019.02.002
  CLC： O734;TP212
- Published：2019
- 稿件说明：
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[1]王佳佳,李彦宇,贾振红.量子点/多孔硅光子晶体生物传感器用于检测链霉亲和素[J],2019,36(02):132-137.
[1]王佳佳,李彦宇,贾振红.量子点/多孔硅光子晶体生物传感器用于检测链霉亲和素[J],2019,36(02):132-137. DOI： 10.13568/j.cnki.651094.2019.02.002.

DOI：10.13568/j.cnki.651094.2019.02.002.

摘要

本文主要研究了基于量子点/多孔硅光子晶体制备生物传感器的可行性及其在生物检测中的实际应用.功能化多孔硅光子晶体器件与链霉亲和素连接形成生物特征元件.固定浓度的量子点标记的生物素与链霉亲和素发生特异性反应.多孔硅光子晶体的高反射带隙位于量子点发射荧光峰处

使得量子点的荧光信号得到放大.多孔硅光子晶体传感器的检测灵敏度明显提高

使检测限达到pM量级.

Abstract

We mainly investigate the feasibility of preparing a biosensor based on quantum dots/porous silicon photonic crystal and the practical application in biological detection. Functionalized porous silicon photonic crystal devices were connected with target streptavidin to form a biometric element. Quantum dots labeled biotin at a ?xed concentration speci?cally reacted with streptavidin. High-re?ective bandgap of porous silicon photonic crystal

which located at the emission ?uorescence peak of quantum dots

is bene?cial to magnify the emission ?uorescence signal of quantum dots. Porous silicon photonic crystal sensor revealed a marked enhancement of the detection sensitivity

so that the detection limit is reached pM.

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