Publication detail

Colorimetric and naked-eye detection of arsenic(iii) using a paper-based colorimetric device decorated with silver nanoparticles

SAADATI, A. FARSHCHI, F. HASANZADEH, M. LIU, YQ. SEIDI, F.

Original Title

Colorimetric and naked-eye detection of arsenic(iii) using a paper-based colorimetric device decorated with silver nanoparticles

Type

journal article in Web of Science

Language

English

Original Abstract

Arsenic (As) as a metal ion has long-term toxicity and its presence in water poses a serious threat to the environment and human health. So, rapid and accurate recognition of traces of As is of particular importance in environmental and natural resources. In this study, a fast and sensitive colorimetric method was developed using silver nano prisms (Ag NPrs), cysteine-capped Ag NPrs, and methionine-capped Ag NPrs for accurate detection of arsenic-based on transforming the morphology of silver nanoparticles (AgNPs). The generated Ag atoms from the redox reaction of silver nitrate and As(iii) were deposited on the surface of Ag NPrs and their morphology changed to a circle. The morphological changes resulted in a change in the color of the nanoparticles from blue to purple, which was detectable by the naked eye. The rate of change was proportional to the concentration of arsenic. The changes were also confirmed using UV-Vis absorption spectra and showed a linear relationship between the change in adsorption peak and the concentration of arsenic in the range of 0.0005 to 1 ppm with a lower limit of quantification (LLOQ) of 0.0005 ppm. The proposed probes were successfully used to determine the amount of As(iii) in human urine samples. In addition, modified microfluidic substrates were fabricated with Ag NPrs, Cys-capped Ag NPrs, and methionine-capped Ag NPrs nanoparticles that are capable of arsenic detection in the long-time and can be used in the development of on-site As(iii) detection kits. In addition, silver nanowires (AgNWs) were used as a probe to detect arsenic, but good results were not obtained in human urine specimens and paper microfluidic platforms. In this study, for the first time, AgNPs were developed for optical colorimetric detection of arsenic using paper-based microfluidics. Ag NPrs performed best in both optical and colorimetric techniques. Therefore, they can be a promising option for the development of sensitive, inexpensive, and portable tools in the environmental and biomedical diagnosis of As(iii).

Keywords

SELECTIVE DETECTION; GOLD NANOPARTICLES; METAL-IONS; L-CYSTEINE; AGGREGATION; SENSORS; ACID

Authors

SAADATI, A.; FARSHCHI, F.; HASANZADEH, M.; LIU, YQ.; SEIDI, F.

Released

4. 8. 2022

Publisher

ROYAL SOC CHEMISTRY

Location

CAMBRIDGE

ISBN

2046-2069

Periodical

RSC Advances

Year of study

12

Number

34

State

United Kingdom of Great Britain and Northern Ireland

Pages from

21836

Pages to

21850

Pages count

15

URL

https://pubs.rsc.org/en/content/articlelanding/2022/RA/D2RA02820D

BibTex

@article{BUT179182,
  author="SAADATI, A. and FARSHCHI, F. and HASANZADEH, M. and LIU, YQ. and SEIDI, F.",
  title="Colorimetric and naked-eye detection of arsenic(iii) using a paper-based colorimetric device decorated with silver nanoparticles",
  journal="RSC Advances",
  year="2022",
  volume="12",
  number="34",
  pages="21836--21850",
  doi="10.1039/d2ra02820d",
  issn="2046-2069",
  url="https://pubs.rsc.org/en/content/articlelanding/2022/RA/D2RA02820D"
}