Immobilization effects on the photocatalytic activity of CdS quantum Dots-Horseradish peroxidase hybrid nanomaterials

被引：13

作者：

Inarritu, Iker ^{[1
]}

Torres, Eduardo ^{[2
]}

Topete, Antonio ^{[1
,3
]}

Campos-Teran, Jose ^{[1
]}

机构：

[1] Univ Autonoma Metropolitana, Unidad Cuajimalpa, Dept Proc & Tecnol, Mexico City 05348, DF, Mexico

[2] Benemerita Univ Autonoma Puebla, Inst Ciencias, Puebla 72000, Mexico

[3] Univ Guadalajara, Ctr Univ Ciencias Salud, Dept Fisiol, Guadalajara 44340, Jalisco, Mexico

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2017年 / 506卷

关键词：

Enzyme-nanoparticle; Hybrid nanomaterials; CdS quantum dots; Horseradish peroxidase; Quartz crystal microbalance; Photocatalysis; NANOCRYSTALS; RESORUFIN; CANCER; SYSTEM;

D O I：

10.1016/j.jcis.2017.07.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The potential use of hybrid nanomaterials based on inorganic optically active nanoparticles known as quantum dots (QDs) and horseradish peroxidase (HRP) has been proposed by several authors as light controllable nanocatalyzers, moreover, the immobilization within or over silica based supports represents an advantage over bulk -dispersed systems. However, the implications of the immobilization of such hybrid photoactivatable catalyzing systems have not been clarified with detail. Here, we present a thorough study of the functional photoactive efficiency and recycling of immobilized CdS QDs and HRP systems with different configurations, immobilized over silanized silica quartz crystal microbalance (QCM) sensors, allowing an accurate measure of the immobilized mass of each component and its correlation with the initial reaction rate of conversion of Amplex Red (AR) to resorufin. As well, the conversion efficiency is compared between the different systems and also to non-immobilized QD-HRP complexed systems. (C) 2017 Elsevier Inc. All rights reserved.

引用

页码：36 / 45

页数：10

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