We report colorimetric, label-free, and non-aggregation-based gold nanoparticle (AuNP) probes for the highly selective detection of Fe(III) ions in aqueous environments.
PECAM colorimetric labeling has been previously described [ 4, 13].
A simple, rapid colorimetric method using label-free Ag NPs (silver nanoparticles) as probe for detection of melamine in raw milk was developed in this study.
A novel unmodified gold nanoparticles (AuNPs -based colorimetric strAuNPs -basedbel-free, specolorimetricnstrategyercury ion (Hg2+) detection was demonstrated by using thymine–Hg2+–thymine (T–Hg2+–T) recognition mechanism and hybridization chain reaction (HCR) ampliforation strategy.
Based on this, for detection of single-stranded DNA (ss-DNA) and damage DNA induced by chemicals such as styrene oxide (SO), NaAsO2, and physical radiation, such as UV radiation, a free-label colorimetric method was developed.
In this study, a new label free colorimetric sensor was designed for highly selective detection of mercury ion.
Herein, we report a simple, sensitive label-free colorimetric assay of trypsin based on silver nanoparticles (AgNPs) aggregation.
A label-free colorimetric assay, using non-crosslinking AuNP aggregation, has been developed for the screening of specific triplex DNA binders.
In this article, we propose an amplified and label-free colorimetric DNA detection strategy based on nicking endonuclease (NEase -assisted activatioNEase -assistedes (NEactivations).
Here, a label-free colorimetric isothermal cascade amplification for ultrasensitive and specific detection of K-Ras point mutation is developed based on a double-hairpin molecular beacon (DHMB).
Label-free colorimetric assays using metallic nanoparticles have received much recent attention, for their application in simple and sensitive methods for detection of biomolecules.
