A Brief Overview on Antioxidant Activity Determination of Silver Nanoparticles

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Abstract

Our objective in this review article is to find out relevant information about methods of determination of antioxidant activity of silver nanoparticles. There are many studies dealing with mentioned problem and herein we summarize the knowledge about methods evaluating the antioxidant activity of silver nanoparticles reported so far. Many authors declare better antioxidant activity of silver nanoparticles compared to the extract used for synthesis of them. In this review, we focused on methods of antioxidant activity determination in detail to find out novel and perspective techniques to solve the general problems associated with the determination of antioxidant activity of silver nanoparticles.

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Most cited references 127

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A systematic review on silver nanoparticles-induced cytotoxicity: Physicochemical properties and perspectives

Mahmuda Akter, Md Tajuddin Sikder, Md Rahman … (2017)

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Analysis of antioxidant activities of common vegetables employing oxygen radical absorbance capacity (ORAC) and ferric reducing antioxidant power (FRAP) assays: a comparative study.

Boxin Ou, Dejian Huang, Maureen Hampsch-Woodill … (2002)

A total of 927 freeze-dried vegetable samples, including 111 white cabbages, 59 carrots, 51 snap beans, 57 cauliflower, 33 white onions, 48 purple onions, 130 broccoli, 169 tomatoes, 25 beets, 88 peas, 88 spinach, 18 red peppers, and 50 green peppers, were analyzed using the oxygen radical absorption capacity (ORAC) and ferric reducing antioxidant capacity (FRAP) methods. The data show that the ORAC and FRAP values of vegetable are not only dependent on species, but also highly dependent on geographical origin and harvest time. The two antioxidant assay methods, ORAC and FRAP, also give different antioxidant activity trends. The discrepancy is extensively discussed based on the chemistry principles upon which these methods are built, and it is concluded that the ORAC method is chemically more relevant to chain-breaking antioxidants activity, while the FRAP has some drawbacks such as interference, reaction kinetics, and quantitation methods. On the basis of the ORAC results, green pepper, spinach, purple onion, broccoli, beet, and cauliflower are the leading sources of antioxidant activities against the peroxyl radicals.

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Localized surface plasmon resonance spectroscopy of single silver nanocubes.

Leif Sherry, Shih-Hui Chang, George Schatz … (2005)

In this work, we use dark-field microscopy to observe a new plasmon resonance effect for a single silver nanocube in which the plasmon line shape has two distinct peaks when the particles are located on a glass substrate. The dependence of the resonance on nanocube size and shape is characterized, and it is found that the bluer peak has a higher figure of merit for chemical sensing applications than that for other particle shapes that have been studied previously. Comparison of the measured results with finite difference time domain (FDTD) electrodynamics calculations enables us to confirm the accuracy of our spectral assignments.

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Author and article information

Contributors

José Pinela: Role: Academic Editor

Lillian Barros: Role: Academic Editor

Maria Ines Dias: Role: Academic Editor

Journal

Journal ID (nlm-ta): Molecules

Journal ID (iso-abbrev): Molecules

Journal ID (publisher-id): molecules

Title: Molecules

Publisher: MDPI

ISSN (Electronic): 1420-3049

Publication date (Electronic): 13 July 2020

Publication date Collection: July 2020

Volume: 25

Issue: 14

Electronic Location Identifier: 3191

Affiliations

[1 ]Department of Chemistry, Biochemistry and Biophysics, Institute of Pharmaceutical Chemistry, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia; imrich.strapac@ 123456uvlf.sk (I.S.); aneta.salayova@ 123456uvlf.sk (A.S.)

[2 ]Department of Mechanochemistry, Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 040 01 Košice, Slovakia; balazm@ 123456saske.sk

Author notes

[* ]Correspondence: zdenka.bedlovicova@ 123456uvlf.sk ; Tel.: +421-915-986-748

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Matej Baláž https://orcid.org/0000-0001-6563-7588

Article

Publisher ID: molecules-25-03191

DOI: 10.3390/molecules25143191

PMC ID: 7397195

PubMed ID: 32668682

SO-VID: caf19b87-6193-43ac-8684-3c213ec0ee14

License:

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( http://creativecommons.org/licenses/by/4.0/).

A Brief Overview on Antioxidant Activity Determination of Silver Nanoparticles

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Most cited references 127

A systematic review on silver nanoparticles-induced cytotoxicity: Physicochemical properties and perspectives

Analysis of antioxidant activities of common vegetables employing oxygen radical absorbance capacity (ORAC) and ferric reducing antioxidant power (FRAP) assays: a comparative study.

Localized surface plasmon resonance spectroscopy of single silver nanocubes.

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