Silver based nanomaterial, as a selective colorimetric sensor for visual detection of post harvest spoilage in onion

Sachdev, Divya; Kumar, Vinay; Maheshwari, Priyanka H.; Pasricha, Renu; Deepthi, .; Baghel, Neeraj

doi:10.1016/j.snb.2016.01.049

Cited by 32 publications

(20 citation statements)

References 33 publications

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“…The nanoparticles research have given a lot of contribution in material engineering, which opening the opportunities for its' usage and applications in various fields, such as medical [1], pharmaceutical [2,3], environmental [4,5], and sensors [6,7]. From a wide range of the applied nanoparticle materials, gold and silver nanoparticles are the most renowned [8,9].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the stability of silver nanoparticles synthesized using aqueous extract of Diospyros discolor Willd. leaves using polyvinyl alcohol

Ardani

Imawan

Handayani

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Biosynthesis of silver nanoparticles is recently attracting considerable attention because of it reduces the environmental impact and already used in numerous applications. However, the disadvantages such as easy aggregation and instability properties, prevent its' application. In this papers, biosynthesis of silver nanoparticles using aqueous extract of Diospyros discolor Willd. leaves have been prepared. The effect of biosynthesis variables, like ratio of reactants and reduction time on the particle size distribution, stability, and morphology of the silver nanoparticles were investigated. The resulted silver nanoparticles were characterized using UV spectroscopy, Transmission Electron Microscopy, and Particles Size Analyzer. Polyvinyl alcohol (PVA) was used to enhance the stability of the silver nanoparticles. Silver nanoparticles modification with 1% PVA concentration has produced a better characteristic of particle size distribution compared to the original silver nanoparticles, from highly polydisperse into moderately disperse. The results of the Zetta potential measurement also confirmed the increase stability of cluster distribution in the colloidal Ag/PVA compared to the original Ag.

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Section: Introductionmentioning

confidence: 99%

Enhancement of the stability of silver nanoparticles synthesized using aqueous extract of Diospyros discolor Willd. leaves using polyvinyl alcohol

Ardani

Imawan

Handayani

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Silver-based yellow-coloured colloidal nanoparticle (AgY) was proposed by Sachdev et al (2016) as visual sensor for organo-sulfur compounds released in onions spoilage. The visual changes were monitored along ten days, and the original yellow colour of the AgY colloidal solution changed with time to orange, pink and finally colourless.…”

Section: Fruits and Vegetablesmentioning

confidence: 99%

“…Halal fermented beverages Kuswandi et al, 2014 Silver based yellow colored colloidal nanoparticle Onion Sachdev et al, 2016…”

mentioning

confidence: 99%

Recent advances on intelligent packaging as tools to reduce food waste

Poyatos‐Racionero

Ros‐Lis

Vivancos

et al. 2018

Journal of Cleaner Production

228

111

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Food waste is one of the main issues for international organisms. It is not only an ethical and economic issue but it also depletes the environment of limited natural resources. Among strategies suitable for fighting such challenge, intelligent packaging is an interesting tool to reduce waste derived from households and retailers. A revision of 45 recent advances in the area of optical systems for freshness monitoring is reported herein. The study covers fruits, vegetables, fish products and meat since they are the most representative fields of application. Furthermore, a discussion about the main research challenges and opportunities that will be faced by intelligent packaging in the coming years is included.

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“…Interaction of silver nanoparticles with analytes induces the aggregation of silver nanoparticles and result in the decrease of surface plasmon resonance peak intensity. The change of peak intensity relates to the concentration of analyte (Sachdev et al, 2016;Shrivas, Sahu, Patra, Jaiswal, & Shankar, 2016). In addition, silver nanoparticles also possess antibacterial properties which has inspired the application of silver nanoparticles in the field of food production, water treatment, textile industries, consumer goods and biomedical application as an antibacterial agent.…”

Section: Introductionmentioning

confidence: 99%

Two Highly Stable Silver Nanoparticles: Surface Plasmon Resonance Spectra Study of Silver Nanoparticles Capped with m-Hydroxybenzoic Acid and p-Hydroxybenzoic Acid

Gusrizal

Santosa²,

Kunarti³

et al. 2018

Molekul

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Silver nanoparticles capped with m-hydroxybenzoic acid and p-hydroxybenzoic have been successfully synthesized, but the long-term stability data of these silver nanoparticles are not available. In this paper, we report the stability of these two types of silver nanoparticles for a period of 40 weeks observation based on the change of surface plasmon resonance spectra of silver nanoparticles. Silver nanoparticles were synthesized by reduction of silver nitrate with m-hydroxybenzoic acid and p-hydroxybenzoic acid without addition of capping agent. The presence of silver nanoparticles was indicated by the appearance of yellow color due to the surface plasmon resonance of silver nanoparticles. The resulted silver nanoparticles were stored at room temperature and further UV-visible spectrophotometer was used to follow the change in surface plasmon resonance spectra. The surface plasmon resonance spectra of silver nanoparticles were overlapped for the first 18 weeks, followed by little change in the position of absorption maxima (lmax), peak intensity, and width of the absorption peak until the week of 40. Silver nanoparticles capped with m-hydroxybenzoic acid and silver nanoparticles capped with p-hydroxybenzoic acid were highly stable which should make them suitable for further applications. The results show the potential of m-hydroxybenzoic acid and p-hydroxybenzoic acid to become a new reducing agent in the synthesis of highly stable silver nanoparticles. The m-hydroxybenzoic acid and p-hydroxybenzoic acid appeared to act as both reducing and capping agent.

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Silver based nanomaterial, as a selective colorimetric sensor for visual detection of post harvest spoilage in onion

Cited by 32 publications

References 33 publications

Enhancement of the stability of silver nanoparticles synthesized using aqueous extract of Diospyros discolor Willd. leaves using polyvinyl alcohol

Enhancement of the stability of silver nanoparticles synthesized using aqueous extract of Diospyros discolor Willd. leaves using polyvinyl alcohol

Recent advances on intelligent packaging as tools to reduce food waste

Two Highly Stable Silver Nanoparticles: Surface Plasmon Resonance Spectra Study of Silver Nanoparticles Capped with m-Hydroxybenzoic Acid and p-Hydroxybenzoic Acid

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