A simple and cost-effective paper-based and colorimetric dual-mode detection of arsenic(iii) and lead(ii) based on glucose-functionalized gold nanoparticles

Abstract

We report a simple and cost-effective paper-based and colorimetric dual-mode detection of As(iii) and Pb(ii) based on glucose-functionalized gold nanoparticles under optimized conditions.

Gold Nanoparticles as Exquisite Colorimetric Transducers for Water Pollutant Detection

“…AuNPs are advantageous as colorimetric transducers for water pollutant detection as they exhibit relatively low cost, low toxicity, high stability, facile processability, and unique optical properties. In general, colorimetric sensors do not require bulky and expensive analysis instruments such as Fourier transform infrared spectroscopy or Raman spectroscopy. − From that point of view, metal nanomaterials, including AuNPs, have been commonly used as sensing probes in the food, pharmaceutical, environmental, and biological fields due to their cost effectiveness . For example, research has shown that arsenic­(V) can be detected inexpensively ($0.03 per test) using a colorimetric dipstick method .…”

“…26−29 From that point of view, metal nanomaterials, including AuNPs, have been commonly used as sensing probes in the food, pharmaceutical, environmental, and biological fields due to their cost effectiveness. 30 For example, research has shown that arsenic(V) can be detected inexpensively ($0.03 per test) using a colorimetric dipstick method. 31 Additionally, AuNPs are considered to be benign when released into ecosystems.…”

A strategically synthesized arseno-discriminatory tetra-phenoxido hetero-trinuclear complex envisioned for the recognition of iAs and oAs from Oryza sp. and aquatic crustaceans

“…Statistically, 140 million people in almost 50 countries are in jeopardy from high levels of arsenic contamination (>10 ppb; WHO guided limit) in groundwater as well as groundwater-irrigated crops, which remains a potent challenge for global sustainability. 1–3 The degree of mobility and toxicological adversity of inorganic arsenic ( i As ) depend on the oxidation states wherein As 3+ ( i As ) is considered about 70 times more noxious than As 5+ ( i As ), owing to its higher solubility and slower excretion rate. 4–6 Bio-mediated transformation of i As can lead to a wide range of compounds including methylated arsenic acids, arsenosugars, and arsenolipids.…”

Highly sensitive and selective colorimetric detection of Pb(ii) ions using Michelia tonkinensis seed extract capped gold nanoparticles

“…Meanwhile, colorimetric sensing methods have expressed great potential for the detection of metallic ions and toxic pollutants on account of their quick detection, naked-eye sensing, high sensitivity, and easy fabrication. 4…”

“…Meanwhile, colorimetric sensing methods have expressed great potential for the detection of metallic ions and toxic pollutants on account of their quick detection, nakedeye sensing, high sensitivity, and easy fabrication. 4 The advent of nanotechnology has created a huge leap forward in materials science. With unique properties, nanomaterials have been widely applied in medicine, optics, environmental treatment, catalysis, and electronic devices.…”