A Study on Surfactant Solutions as Stop Solution for Metal Nanoparticles Aggregation-Based Colorimetric Assays
Authors:
- 31 August 2022
- journal article
- research article
- Published by World Scientific Pub Co Pte Ltd in International Journal of Nanoscience
- Vol. 21 (04)
Abstract
In this paper, we report herein for the first time that a stop solution should be used to terminate the metal nanoparticles (MNPs) aggregation reactions especially salt-induced ones to increase the repeatability of the assays. It was found that hydrophobic surfactants have the ability to slow down the aggregation process of MNPs and can be applied as stop solution for aggregation-based colorimetric assays. This trick provides accurate and well-repeatable signals since the aggregation of the nanoparticles is a dynamic process and capturing signal in a predetermined time is difficult.Keywords
Funding Information
- Drug Applied Research Center, Tabriz University of Medical Sciences (64109)
This publication has 14 references indexed in Scilit:
- Simultaneous colorimetric determination of morphine and ibuprofen based on the aggregation of gold nanoparticles using partial least squareJournal of Pharmaceutical Analysis, 2017
- Paper-based readout to improve the measuring accuracy of gold nanoparticle aggregation-based colorimetric biosensorsAnalytical Methods, 2017
- Unusual sequence length-dependent gold nanoparticles aggregation of the ssDNA sticky end and its application for enzyme-free and signal amplified colorimetric DNA detectionScientific Reports, 2016
- Influence of molecular assembly and NaCl concentration on gold nanoparticles for colorimetric detection of cysteine and glutathioneSensors and Actuators B: Chemical, 2015
- Colorimetric detection of melamine in pretreated milk using silver nanoparticles functionalized with sulfanilic acidFood Control, 2015
- Aggregation behaviour of gold nanoparticles in saline aqueous mediaJournal of Nanoparticle Research, 2014
- Utilization of unmodified gold nanoparticles in colorimetric detectionScience China Physics, Mechanics & Astronomy, 2011
- Aggregation Kinetics of Citrate and Polyvinylpyrrolidone Coated Silver Nanoparticles in Monovalent and Divalent Electrolyte SolutionsEnvironmental Science & Technology, 2011
- Impact of Environmental Conditions (pH, Ionic Strength, and Electrolyte Type) on the Surface Charge and Aggregation of Silver Nanoparticles SuspensionsEnvironmental Science & Technology, 2010
- Synthesis and Self-Assembly of Cetyltrimethylammonium Bromide-Capped Gold NanoparticlesLangmuir, 2003