Strategies in Improving Sensitivity of Colorimetry Sensor Based on Silver Nanoparticles in Chemical and Biological Samples

Badi’ah, Hanim Istatik; Ummah, Dinda Khoirul; Puspaningsih, Ni Nyoman Tri; Supriyanto, Ganden

doi:10.22146/ijc.73194

Cited by 2 publications

(1 citation statement)

References 57 publications

(140 reference statements)

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“…The amine and alcohol groups are considered in the reaction with the analyte. The coating (ligand) used is cysteine (cys) [9] [10].…”

Section: Synthesis Of Silver Nanoparticles-cystein (Agnps-cys)mentioning

confidence: 99%

Silver nanoparticle-based biosensor as a rapid test for the detection 3-monochloropropane-1,2-diol (3-MCPD) in cooking oil

Mahardika,

Putri,

Syarmila

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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One of the toxic compounds that are carcinogenic (cancer causing) in food is chloropropanol compound. These compounds are currently of great concern considering the increasing number of cancer and kidney failure sufferers in the world apart from degenerative diseases. Derivatives of these compounds are widely found in food ingredients, such as vegetable oils, baby food, smoked fish, infant formula, processed soybeans, margarine, cereals, soy sauce, and others. ). There are several types of chloropropanol compounds with one or two chlorine atoms in glycerol at position 1 or 2 such as 3-monochloropropane-1,2-diol (3-MCPD), 2-monochloropropane-1,3-diol (2-MCPD). Therefore, early prevention is needed for further treatment through the detection of 3-MCPD in cooking oil. The development that will be carried out is a silver nanoparticle-based biosensor combined with colorimetric. The method used to obtain a suitable biosensor is by synthesizing silver nanoparticles (AgNPs) coated with cystein. The content of 3-MCPD in the new oil is 2,828 µg/Kg. Meanwhile, used cooking oil has a higher content of 3-MCPD, that is as much 19,042 µg/Kg. This value exceeds the maximum limit set by the European Commission (EC), which is 1,250 µg/Kg for oils/fats sourced from coconut, corn, sunflower, palm kernel oil and olive oil.

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“…The amine and alcohol groups are considered in the reaction with the analyte. The coating (ligand) used is cysteine (cys) [9] [10].…”

Section: Synthesis Of Silver Nanoparticles-cystein (Agnps-cys)mentioning

confidence: 99%

Silver nanoparticle-based biosensor as a rapid test for the detection 3-monochloropropane-1,2-diol (3-MCPD) in cooking oil

Mahardika,

Putri,

Syarmila

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Síntesis y caracterización de titanato de calcio (CaTiO3) como potencial sensor electroquímico de contaminantes orgánicos en solución acuosa

Hinostroza,

Trujillo Navarrete,

Félix Navarro

et al. 2024

Rev. Ci. Tec.

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Los contaminantes orgánicos son altamente tóxicos y volátiles se acumulan en los tejidos grasos; Debido a su persistencia y movilidad, es posible encontrarlas prácticamente en cualquier parte del planeta, incluso en lugares donde nunca han sido utilizadas. Por esta razón, el monitoreo y la vigilancia en los cuerpos de agua son fundamentales. En la presente investigación, se sintetizaron partículas de titanato de calcio (CaTiO3) utilizando el método de estado sólido. Las partículas se caracterizaron por diversas técnicas fisicoquímicas: difracción de rayos-X (DRX), espectroscopia Raman, microscopía electrónica de barrido (MEB), espectroscopia de dispersión de energía (EDE), espectroscopia de reflectancia difusa (ERD), y electroquímica: voltamperometría cíclica (VC), entre otras. Se encontró a través de DRX y Raman que la estructura cristalina es ortorrómbica con el grupo espacial Pbnm. Las partículas de CaTiO3 sintetizadas tienen un diámetro promedio de ≈ 2 µm; Además, el valor obtenido para la brecha de energía (Eg) fue de 3,41 eV; también presenta un paso de baja energía en un valor de 2.66 eV, que puede corresponder a los estados electrónicos mingap. El electrodo de carbón vítreo modificado con la película de CaTiO3 mostro una sensibilidad para la determinación de nitrobenceno (NB) en solución acuosa. Por lo tanto, se puede concluir que el desarrollo de partículas de CaTiO3 es una alternativa viable para ser utilizado como sensor de contaminantes orgánicos en agua.

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Strategies in Improving Sensitivity of Colorimetry Sensor Based on Silver Nanoparticles in Chemical and Biological Samples

Cited by 2 publications

References 57 publications

Silver nanoparticle-based biosensor as a rapid test for the detection 3-monochloropropane-1,2-diol (3-MCPD) in cooking oil

Silver nanoparticle-based biosensor as a rapid test for the detection 3-monochloropropane-1,2-diol (3-MCPD) in cooking oil

Síntesis y caracterización de titanato de calcio (CaTiO3) como potencial sensor electroquímico de contaminantes orgánicos en solución acuosa

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