A selective near-infrared fluorescent probe for hydrogen sulfide and its application in sulfate-reducing bacteria detection

Abstract

A novel NIR fluorescent probe for sulfide was presented, and applied in fluorescence imaging and detection of sulfate-reducing bacteria.

Recent advances in the biosensors application for the detection of bacteria and viruses in wastewater

“…SEM, XRD, FTIR, and AFM results were used to provide morphological and spectroscopic characterizations of GO and rGO. Electrical characterization confirmed the sensitivity and precision of the developed chemiresistor biosensor with an LOD value of 45 CFU/mL which was in line with reported literature [40] . Selectivity was also confirmed by analyzing the sensor response to Pseudomonas chlororaphis strain.…”

A Benzooxazole‐Based Probe for the Sensitive Detection of Hydrogen Sulfide: Kinetic and Transition‐State Studies and In Vitro Application in HepG2 Cells

“…As the probe shows very low LOD (51.8 nM), we have examined the in‐vitro monitoring of HS – in HepG2 cells. We have structured a comparison table (Supporting Information; Table S1 ) with few features of some recently published fluorescent probes for selective sensing of H 2 S based on thiolysis of dinitrophenyl ether . For every probe the LOD value is higher than our probe with one exception .…”

Turning the Page: Advancing Detection Platforms for Sulfate Reducing Bacteria and their Perks

“…[33b] Considering this, Peng Qi and co-workers presented a novel NIR probe for the detection of H 2 S and applied this technique to detect SRB since sulfide is the typical metabolic product of SRB. [34] The working principle of fluorescent probe NIR-HS was based on thiolysis of dinitrophenyl ether to detect sulfide. The probe showed a low detection limit of 1.6 mM for sulfide detection.…”

“…Moreover, Wan's research group fabricated a fluorescent sensor for SRB based on the biologically synthesized CdS nanostructures. [34] An eco-friendly approach was used to prepare CdS nanoparticles (NPs) benefitting from typical metabolic process of SRB as shown in Figure 2A and these CdS NPs were used as fluorescence labels to detect SRB. The CdS NPs surrounded the bacterial cells as-well-as distributed near to SRB that indicated the synthesis of CdS NPs via both intracellularly and extracellularly.…”