Silver nanoparticles in combination with acetic acid and zinc oxide quantum dots for antibacterial activities improvement—A comparative study

Sedira, Sofiane; Ayachi, Ahmed Abdelhakim; Lakehal, Sihem; Merouane, Fateh; Achour, S.

doi:10.1016/j.apsusc.2014.05.132

Cited by 17 publications

(11 citation statements)

References 25 publications

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“…Galvanic action is an electrochemical process where two different metals creating an electron conductive path in the presence of electrolyte, in this case, the electron flow to the AgNP cause increased formation of silver ions. Compounds such as acetic acid can also increase the antimicrobial activity of the nanoparticles [104]. In wound healing application, it is important to control the release of silver ions because excessive formation of silver ions can cause oxidative stress in the cells as the production of reactive oxygen species increases.…”

Section: Application Of Agnpsmentioning

confidence: 99%

The Potential of Silver Nanoparticles for Antiviral and Antibacterial Applications: A Mechanism of Action

et al. 2020

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Rapid development of nanotechnology has been in high demand, especially for silver nanoparticles (AgNPs) since they have been proven to be useful in various fields such as medicine, textiles, and household appliances. AgNPs are very important because of their unique physicochemical and antimicrobial properties, with a myriad of activities that are applicable in various fields, including wound care management. This review aimed to elucidate the underlying mechanisms of AgNPs that are responsible for their antiviral properties and their antibacterial activity towards the microorganisms. AgNPs can be synthesized through three different methods—physical, chemical, and biological synthesis—as indicated in this review. The applications and limitations of the AgNPs such as their cytotoxicity towards humans and the environment, will be discussed. Based on the literature search obtained, the properties of AgNPs scrutinizing the antibacterial or antiviral effect shown different interaction towards bacteria which dependent on the synthesis processes followed by the morphological structure of AgNPs.

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Section: Application Of Agnpsmentioning

confidence: 99%

The Potential of Silver Nanoparticles for Antiviral and Antibacterial Applications: A Mechanism of Action

et al. 2020

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“…It is clearly observed that dittrichia viscosa leaves extract does not act on bacteria. Ag NPs exerts their antibacterial activities mainly by the released Ag + (Sedira et al, 2014). In this work, the preparation of Ag NPs by dittrichia viscosa can increase the Ag + release which improves the antibacterial activity of Ag NPs.…”

Section: Antibacterial Testsmentioning

confidence: 90%

“…The action of α-costic acid extracted from the dittrichia viscosa can be explained as follows: the α-costic acid delivers H + which reacts with Ag 2 O to give Ag + ions. Then, the Ag + reacts with the bacteria cytoplasm (increasing H + in the cytoplasm) and leads to a decrease of the local pH of the cell which becomes more acidic (Sedira et al, 2014).…”

Section: Antibacterial Testsmentioning

confidence: 99%

Silver nanoparticles bioreduction by dittrichia viscosa leaves extract and its bactericidal effects

Sedira

Sobti

2016

IJNP

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A variety of chemical and physical procedures could be used for synthesis of silver nanoparticles. However, these methods are confronted with many problems including use of toxic solvents. A green method for silver nanoparticles synthesis using dittrichia viscosa leaves extract is proposed. This plant is available in abundance on the coastal Mediterranean countries can replace polyvinylpyrrolidone conventionally used in the synthesis of silver nanoparticles. Polyol method (reflux heating) was used for silver nanoparticles synthesis. The nanoparticles obtained were characterised using X-ray diffraction, ultraviolet-visible spectroscopy, Raman spectroscopy, Fourier transform infrared spectroscopy and transmission electron microscopy. Compared with silver nanoparticles prepared by polyvinylpyrrolidone and ethanol 96%, the bactericidal effect of silver nanoparticles synthesised by dittrichia viscosa is more efficient against bacteria. No toxic solvents were used in the present work; therefore, it is an environmentally safe method with potential for biomedical applications.

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“…Asam asetat dapat berfungsi sebagai antibakteri E. coli dan S. aureus. Hal ini didasarkan bahwa pada senyawa asam asetat, ion H + akan masuk ke dalam bakteri dan akan meningkatkan jumlah atau konsentrasi H + dalam membran sitoplasma dan memudahkan untuk menurunkan pH sehingga sel bakteri akan lebih asam dan akan menyebabkan pertumbuhannya terhambat [36].…”

Section: Hasil Dan Diskusiunclassified

Biosintesis ZnO Nanopartikel dari Ekstrak Air Daun Jambu Biji (Psidium guajava L) dan Ion Zn2+ serta Interaksinya dengan Kitosan sebagai Antibakteri Escherichia coli

Fatoni¹,

Hilma²,

Rasyad³

et al. 2020

J Sains Farm Klin

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Pada penelitian ini telah dilakukan biosintesis ZnO nanopartikel dan kitosan-ZnO nanopartikel sebagai antibakteri Escherichia coli. Tujuan dari penelitian ini adalah modifikasi dan karakterisasi kitosan dengan ZnO nanopartikel dan aplikasinya sebagai antibakteri Escherichia coli. Karakterisasi kitosan-ZnO nanopartikel dilakukan dengan menggunakan spektrofotomer FTIR dan difraksi sinar X (XRD). Difraksi sinar X (XRD) digunakan untuk karakterisasi ZnO nanopartikel. ZnO nanopartikel disintesis melalui reaksi antara ekstrak air daun jambu biji (Psidium guajava L) dengan seng asetat dihidrat. Kitosan-ZnO nanopartikel disintesis melalui reaksi antara kitosan dan ZnO nanopartikel. Metode diffusi agar digunakan untuk meneliti kitosan-ZnO nanopartikel sebagai antibakteri. Hasil penelitian menunjukan bahwa bilangan gelombang pada spektra FTIR kitosan-ZnO nanopartikel muncul pada 3427 cm−1. Ukuran kristal ZnO nanopartikel adalah 16,54 nm. Rata-rata zona inhibisi dari kitosan-ZnO nanopartikel pada konsentrasi 10.000, 5.000 dan 2.500 mg/L berturut-turut adalah 30,57 ± 0,87; 25,97 ± 1,42; dan 23,10 ± 1,61 mm. Semakin tinggi konsentrasi nanopartikel kitosan-ZnO, maka semakin besar pula zona hambatnya.

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Silver nanoparticles in combination with acetic acid and zinc oxide quantum dots for antibacterial activities improvement—A comparative study

Cited by 17 publications

References 25 publications

The Potential of Silver Nanoparticles for Antiviral and Antibacterial Applications: A Mechanism of Action

The Potential of Silver Nanoparticles for Antiviral and Antibacterial Applications: A Mechanism of Action

Silver nanoparticles bioreduction by dittrichia viscosa leaves extract and its bactericidal effects

Biosintesis ZnO Nanopartikel dari Ekstrak Air Daun Jambu Biji (Psidium guajava L) dan Ion Zn2+ serta Interaksinya dengan Kitosan sebagai Antibakteri Escherichia coli

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