Polyvinylalcohol-citrate-stabilized gold nanoparticles supported congo red indicator as an optical sensor for selective colorimetric determination of Cr(III) ion

Amourizi, Fereshteh; Dashtian, Kheibar; Ghaedi, Mehrorang

doi:10.1016/j.poly.2019.114278

Cited by 29 publications

(6 citation statements)

References 49 publications

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“…Due to their low cost, plenty of morphologies, good electro-catalytic activity, high surface area and promoting electron transfer, inorganic nanomaterials have attracted more interest as sensors and biosensors [15] , [16] , [17] , [18] , [19] , [20] , [21] . Among them, zinc sulfide (ZnS) has been greatly used due to several advantages such as low cost, non-toxic, easily fabricated, high capacitance and good stability [22] .…”

Section: Introductionmentioning

confidence: 99%

Facile one pot sonochemical synthesis of layered nanostructure of ZnS NPs/rGO nanosheets for simultaneous analysis of daclatasvir and hydroxychloroquine

Alkahtani

Mahmoud

Mahnashi

et al. 2021

Microchemical Journal

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Section: Introductionmentioning

confidence: 99%

Facile one pot sonochemical synthesis of layered nanostructure of ZnS NPs/rGO nanosheets for simultaneous analysis of daclatasvir and hydroxychloroquine

Alkahtani

Mahmoud

Mahnashi

et al. 2021

Microchemical Journal

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“…Pada waktu diatas 5 menit (10-15 menit) rasio absorbansi (640/550) relatif sama dan tidak terjadi perubahan yang besar, sehingga guna mengefektifkan penelitian yang dilakukan maka waktu inkubasi optimum yaitu selama 5 menit. akibat adanya interaksi gugus capping agent yang selektif ion (ionofor) dengan ion Cr(III) (Amourizi et al, 2020). Ion kromium dapat menyebabkan agregasi NPE akibat interaksi ion sitrat pada NPE yang disertai transfer muatan intramolekul.…”

Section: Penentuan Waktu Inkubasi Optimumunclassified

Biosynthesis of Gold Nanoparticles Using Wuluh Star Fruit (Averrhoa bilimbi) for Chromium Analysis

Dewi,

Firdaus,

Nursa'adah

2024

HJKK

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One of the heavy metals that can pollute waters is the heavy metal chromium (Cr). Chromium has many important roles in life. Chromium material is widely used by humans for various purposes, especially in the industrial world. However, the large number of uses of chromium in the industrial world and the waste it generates can have a negative impact on the environment and human health. One way to deal with chromium pollution is by analyzing the presence of chromium in waters. The aim of this research is to analyze the presence of chromium using a simple, effective, economical and accurate method, namely the biosynthesis of gold nanoparticles using samples of starfruit (Averrhoa bilimbi) as a bioreductor rich in ascorbic acid, with a colorimetric method, namely a method based on the aggregation of gold nanoparticles with ascorbic acid from starfruit, which causes a shift in plasmons and causes color changes that can be seen by the eye. Based on the analysis results, data was obtained that gold nanoparticles synthesized from the starfruit bioreductor can detect chromium with a concentration of 10 ppm with optimum conditions at pH 5, temperature 75oC, optimum incubation time of 5 minutes and gold nanoparticles are selective and sensitive for detecting chromium.

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“…Such systems provide safe and effective diagnosis and targeted cancer treatment ( Wang et al, 2008 ). Different polymers used in the synthesis of AuNPs include poly (ethylene glycol) (PEG) ( Wang et al, 2020 ), Poly (N-vinylpyrrolidone) (PVP) ( Fazleeva et al, 2021 ), chitosan (CS) ( Hu et al, 2018 ), polystyrene (PS) ( Gálvez-Vergara et al, 2020 ), poly (methyl methacrylate) (PMMA) ( Wang and Seidel, 2021 ) and polyvinyl alcohol (PVA) ( Amourizi et al, 2020 ).…”

Section: Synthesis Of Aunpsmentioning

confidence: 99%

Gold Nanoparticles Based Optical Biosensors for Cancer Biomarker Proteins: A Review of the Current Practices

Tai

Fan

Ding

et al. 2022

Front. Bioeng. Biotechnol.

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Cancer prognosis depends on the early detection of the disease. Gold nanoparticles (AuNPs) have attracted much importance in biomedical research due to their distinctive optical properties. The AuNPs are easy to fabricate, biocompatible, surface controlled, stable, and have surface plasmonic properties. The AuNPs based optical biosensors can intensely improve the sensitivity, specificity, resolution, penetration depth, contrast, and speed of these devices. The key optical features of the AuNPs based biosensors include localized surface plasmon resonance (LSPR), SERS, and luminescence. AuNPs based biomarkers have the potential to sense the protein biomarkers at a low detection level. In this review, the fabrication techniques of the AuNPs have been reviewed. The optical biosensors based on LSPR, SERS, and luminescence are also evaluated. The application of these biosensors for cancer protein detection is discussed. Distinct examples of cancer research that have a substantial impact on both scientific and clinical research are presented.

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Polyvinylalcohol-citrate-stabilized gold nanoparticles supported congo red indicator as an optical sensor for selective colorimetric determination of Cr(III) ion

Cited by 29 publications

References 49 publications

Facile one pot sonochemical synthesis of layered nanostructure of ZnS NPs/rGO nanosheets for simultaneous analysis of daclatasvir and hydroxychloroquine

Facile one pot sonochemical synthesis of layered nanostructure of ZnS NPs/rGO nanosheets for simultaneous analysis of daclatasvir and hydroxychloroquine

Biosynthesis of Gold Nanoparticles Using Wuluh Star Fruit (Averrhoa bilimbi) for Chromium Analysis

Gold Nanoparticles Based Optical Biosensors for Cancer Biomarker Proteins: A Review of the Current Practices

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