Silver nanoparticles as a new colorimetric probe for determination of oxalic acid in urine

Date

2016-09-01

Author

Basharzad, Parisa Fateh
Farhadi, Khalil
Forough, Mehrdad
Molaei, Rahim

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

145
views

0
downloads

A new and high potential colorimetric sensor for the selective recognition and monitoring of oxalic acid (OA) in aqueous samples has been developed based on the interaction between OA and unmodified silver nanoparticles (AgNPs). The fresh synthesized silver nanoparticles are yellowishbrown in color due to the intense SPR absorption band. It was found that AgNPs were aggregated in the presence of oxalic acid, resulting in a considerable decrease in the intensity of the surface plasmon resonance (SPR) absorption band of AgNPs and formation of new peak in at longer wavelengths. So, we propose a simple, cost effective, rapid and selective colorimetric sensor for the detection of oxalic acid using AgNPs in aqueous media. Results demonstrated that other similar organic acids cannot change the color of AgNPs solution in the same conditions, suggesting the selectivity of the proposed method toward OA. The color change was monitored by naked eye and UV-Vis spectrophotometer. Also, the effect of the concentration of oxalic acid to the color change of AgNPs was considered and the LOD for OA was estimated 3.3 μM. The proposed method has been successfully used for the determination of oxalic acid in human urine samples.

Subject Keywords

COLORIMETRIC SENOR, OXALIC ACID, SILVER NANOPARTICLES, URINE

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84992055571&origin=inward
https://hdl.handle.net/11511/90430

Journal

Sensor Letters

DOI

https://doi.org/10.1166/sl.2016.3714

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Silver nanoparticles in the presence of Ca2+ as a selective and sensitive probe for the colorimetric detection of cysteine Hajizadeh, Salahaddin; Farhadi, Khalil; Forough, Mehrdad; Molaei, Rahim (2012-06-01) A sensitive and selective cysteine colorimeric sensor based on the interaction between cysteine, silver nanoparticles (AgNPs) and calcium ions has been developed. In the presence of Ca2+ and NaCl, cysteine could rapidly induce the aggregation of AgNPs, thereby resulting in a yellow-to-red color change. The presence of 10 mM NaCl in the samples decreases the electrostatic repulsion and accelerates the aggregation of AgNPs. Results demonstrated that other amino acids cannot change the color of AgNPs solution ...
Highly sensitive and selective colorimetric probe for determination of L-cysteine in aqueous media based on Ag/Pd bimetallic nanoparticles Farhadi, Khalil; Forough, Mehrdad; Pourhossein, Atefeh; Molaei, Rahim (2014-10-01) The interaction between Ag/Pd bimetallic nanoparticles and cysteine was introduced as a new and high potential colorimetric probe for the selective, sensitive and low-cost recognition and monitoring of cysteine in aqueous samples. In the presence of NaCl, cysteine was able to induce the aggregation of Ag/Pd bimetallic nanoparticles thereby resulting in a change in yellowish-brown color of the Ag/Pd colloid to green. The presence of 6.6 mM NaCl in the samples decreases the electrostatic repulsion and acceler...
Silver nanoparticles-tragacanth gel as a green membrane for effective extraction and determination of capecitabine Hajizadeh, Salahaddin; Farhadi, Khalil; Molaei, Rahim; Forough, Mehrdad (Wiley, 2020-07-01) A novel eco-friendly and effective electromembrane extraction method combining high-performance liquid chromatography with UV detection was developed for the enrichment and determination of capecitabine. Tragacanth-silver nanoparticles conjugated gel was prepared by dissolving the tragacanth powder in synthesized silver nanoparticles solution and was used as a green membrane in electromembrane extraction. The porosity and presence of silver nanoparticles in the gel were characterized by field emission scann...
Highly selective Hg2+ colorimetric sensor using green synthesized and unmodified silver nanoparticles Farhadi, Khalil; Forough, Mehrdad; Molaei, Rahim; Hajizadeh, Salahaddin; Rafipour, Aysan (2012-01-01) The reaction between biologically green synthesized silver nanoparticles (Ag NPs) and mercury (II) ions was introduced as a new and high potential calorimetric sensor for the selective recognition and monitoring of mercuric ions in aqueous samples. The green synthesized silver nanoparticles were characterized with surface plasmon resonance (SPR) ultraviolet spectroscopy (UV-vis), SEM and X-ray diffraction analysis (XRD) techniques. The fresh biologically synthesized silver nanoparticles are yellowish-brown ...
A Monostyryl Boradiazaindacene (BODIPY)-based lanthanide-free colorimetric and fluorogenic probe for sequential sensing of copper (II) ions and dipicolinic acid as a biomarker of bacterial endospores Cetinkaya, Yagmur; Yurt, Mediha Nur Zafer; Öktem, Hüseyin Avni; Yilmaz, M. Deniz (2019-09-05) A new catechol-substituted monostyryl boradiazaindacene (BODIPY)-based lanthanide-free colorimetric and fluorogenic probe was developed for the sequential detection of Cu2+ ions and dipicolinic acid (DPA), a distinctive biomarker of bacterial endospores, with high sensitivity and selectivity. In the presence of Cu2+ ions, the blue solution of the probe changes to cyan and the fluorescence is quenched, however, the cyan color changes to blue immediately and the fluorescence is restored on contact with DPA, r...

Citation Formats

P. F. Basharzad, K. Farhadi, M. Forough, and R. Molaei, “Silver nanoparticles as a new colorimetric probe for determination of oxalic acid in urine,” Sensor Letters, pp. 906–912, 2016, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84992055571&origin=inward.