Smartphone-assisted microfluidic and spectrophotometric recognition of hydrazine: a new platform towards rapid analysis of carcinogenic agents and environmental technology

Abstract

Hydrazine (Hyd), a poisonous substance, is frequently employed in agriculture and industry as a scavenger to remove residues of oxygen from boiler feed water, electrical power plants, etc.

Simple microfluidic devices for in situ detection of water contamination: a state-of-art review

“…Paper is a sheet containing a compressed hydrophobic/hydrophilic porous membrane that can be made from cellulose fiber or nitrocellulose to control the movement flow of a fluid on the paper via the capillary effect (Jin et al, 2022). This type of material is inspired by the traditional detection technique of paper chromatography (Wu et al, 2022) and has several advantages, such as being easy to modify and functionalize to enhance mechanical strength and conductivity; easily being able to place chemicals on paper; allowing the movement of fluids without needing pump pressure or an external pump; the easy visualization of an analyte's color development when using colorimetry methods; and low-cost processing because there is no need for harsh fabrication conditions or a closed, clean room as it required for inorganic and organic materials (Ghaseminasab et al, 2023). The main drawback is the low specificity, which is unsuitable for volatile samples, surfactants, and organic solvents.…”

“…Reproduced with permission from American Chemical Society (ACS). (C) Microfluidic paper-based colorimetric devices decorated by silver particles for the detection of hydrazine in real samples through UV-visible spectroscopy without the requirement for pre-treatment steps (Ghaseminasab et al, 2023). Copyright 2023, with permission from Royal Society of Chemistry (RSC).…”

“…Humans may be exposed to it by drinking contaminated water. Hence (Ghaseminasab et al, 2023), developed a portable tool for detecting hydrazine that does not require pretreatment or reagents and is based on a microfluidic paper-based colorimetric device (µ-PCD). Furthermore, it requires the naked-eye colorimetric monitoring of N 2 H 4 .…”

One-drop chemosensing of dapoxetine hydrochloride using opto-analysis by multi-channel μPAD decorated silver nanoparticles: introducing a paper-based microfluidic portable device/sensor toward naked-eye pharmaceutical analysis by lab-on-paper technology

“…24 Anisotropic NPs can also be employed for the colorimetric detection of numerous analytes since their transformation ability. [27][28][29][30][31][32][33] The presence of three distinct sharp vertices in triangular silver nanoprisms (AgNPrs) renders these metallic nanoparticles inherently unstable as a consequence of their elevated surface energy inuenced by the Gibbs-Thomson effect. 34 Interestingly, stabilization of AgNPrs on the surface of various substrate led to preparation of novel portable tools for the in situ recognition of a different targets like drugs and biomarkers.…”

“…24 Anisotropic NPs can also be employed for the colorimetric detection of numerous analytes since their transformation ability. 27–33 The presence of three distinct sharp vertices in triangular silver nanoprisms (AgNPrs) renders these metallic nanoparticles inherently unstable as a consequence of their elevated surface energy influenced by the Gibbs–Thomson effect. 34…”