Highly sensitive and selective determination of hydrogen sulfide by resonance light scattering technique based on silver nanoparticles

Abstract

We have developed a green approach to prepare DNA-templated silver nanoparticles (Ag-NPs) from the direct reaction between Ag and ascorbic acid in the presence of DNA and sodium hydroxide. The Ag-NPs showed strong resonance light scattering (RLS) intensity property. Then, the interaction between hydrogen sulfide (HS) and Ag-NPs was studied by measuring their RLS spectra. The results showed that there is a strong interaction between Ag-NPs and HS, which resulted in a decrease in the size of Ag-NPs and a decrease in the RLS intensity of the Ag-NPs solution at the wavelength of 467 nm. The results demonstrated that the RLS technique offers a sensitive and simple tool for investigating the interaction between Ag-NPs and HS, which can be applied to detect HS with high sensitivity and selectivity without complex readout equipment. The linear range for HS determination was found to be the range from 5.0 × 10 to 1.0 × 10 mol L, and the detection limit (3σ/k) was 2.8 × 10 mol L. Moreover, the proposed method was applied for the determination of HS in natural water samples with satisfactory results. Graphical abstract The application of Ag-NPs in HS detection.

ESIPT Fluorescence Probe Based on Double-Switch Recognition Mechanism for Selective and Rapid Detection of Hydrogen Sulfide in Living Cells

“…Several methods have been used to detect H 2 S. − Tang et al developed a chemoselective-reduction-based fluorescence probe for the detection of hydrogen sulfide in living cells, and the effect of pH on the probe was also investigated; Wang et al developed a new metal-oxide sensor for detecting hydrogen sulfide gas at room temperature; Long et al used silver nanoparticles to trace H 2 S by resonance light scattering technique. However, fluorescent probes represent powerful tools for detecting H 2 S in living cells due to latter’s sensitivity and noninvasive property .…”

“…A variety of fluorescent probes have been developed based on the selective reaction of H 2 S with azides, , azamacrocyclic Cu­(II) complexes, and H 2 S-specific electrophiles . Organic compounds containing selenium have been developed for many years, and some work in fluorescence probe field has been reported. , Peng et al reported a unique phenyl diselenide-ester compound, which has the ability to be highly selective and rapid for H 2 S detection based on the double-switch recognition mechanism. Designing fluorescent probes for detecting H 2 S based on nucleophilic attack reaction between H 2 S and Se–Se bond has been a sophisticated strategy .…”

A sensitive resonance Rayleigh scattering sensor for dopamine in urine using upconversion nanoparticles

“…RLS has in fact emerged as a highly attractive choice for monitoring molecular assemblies and characterizing extended aggregates of chromophores. In recent years, it has also been used to determine drugs and various biological macromolecules such as nucleic acids and H 2 S …”

“…RLS has in fact emerged as a highly attractive choice for monitoring molecular assemblies and characterizing extended aggregates of chromophores. In recent years, it has also been used to determine drugs [20] and various biological macromolecules such as nucleic acids [21,22] and H 2 S. [23] In this work, we developed a DA sensor using upconversion nanoparticles as an RLS probe. Strong interactions between DA and UCNPs decrease the size of the nanoparticles and their RLS signals.…”