Green synthesis of silver nanoparticles and their applications as an alternative antibacterial and antioxidant agents

Yousaf, Huma; Mehmood, Ahmer; Ahmad, Khawaja Shafique; Raffi, Muhammad

doi:10.1016/j.msec.2020.110901

Cited by 197 publications

(104 citation statements)

References 38 publications

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“…The NPs could be based on noble metal (Fraj, Jaâfar, Marti, Coderch, & Ladhari, 2019; Küp, Çoşkunçay, & Duman, 2020; Lakhan et al., 2020; Oueslati, Tahar, & Harrath, 2020; Pongsumpun, Iwamoto, & Siripatrawan, 2020; Pu, Li, Sun, Zhong, & Ma, 2019; Ramadan, Shawkey, Rabeh, & Abdellatif, 2019; Rashidzadeh et al., 2020; Satpathy, Patra, Ahirwar, & Hussain, 2020; Savage et al., 2019; J. Singh, Kumar, & Dhaliwal, 2020; A. Singh, Gaud, & Jaybhaye, 2020; Vijilvani et al., 2020; Yousaf, Mehmood, Ahmad, & Raffi, 2020; Zayadi & Abu Bakar, 2020; Zhang, Dang, Zhang, & Lin, 2020), emulsion (Bazana et al., 2019; Borba et al., 2019; Fraj et al., 2019; Pongsumpun et al., 2020; Savage et al., 2019), or even gel (Alemzadeh et al., 2019; Alirezalu et al., 2019; Ginjupalli et al., 2018; Öztürk, Yenice Gürsu, & Dağ, 2020; Rashidzadeh et al., 2020).…”

Section: Preparation Of Nanoparticlesmentioning

confidence: 99%

Bioavailability and antioxidant activity of nanotechnology‐based botanic antioxidants

Myint

Xia

et al. 2021

Journal of Food Science

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Botanic bioactive substances have issues with their solubility, stability, and oral bioavailability in the application, which could be improved by nanotechnologies. In another hands, green synthesis of nanoparticles (NPs) with plant extract is also a promising technology for preparation of NPs due to its safety advantage, yet the bioactive botanic substances that could be more than the assistant of the green synthesis of NPs. Based on the above concerns, this review summarized the preparation of botanic NPs with various plant extract, their solubility, stability, and oral bioavailability; specific attention has been paid to the botanic Ag/Au NPs, their capacity of antioxidant, bioavailability, antimicrobial, anti‐inflammatory, and anticancer.

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Section: Preparation Of Nanoparticlesmentioning

confidence: 99%

Bioavailability and antioxidant activity of nanotechnology‐based botanic antioxidants

Myint

Xia

et al. 2021

Journal of Food Science

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“…AgNPs can contact the surface of bacteria, causing serious damage to the cell membrane, and changing the structure of bacteria. [41] Similarly, the antibacterial effect of AgNPs may be attributed to the induction of oxidative stress, which destroys the bacterial structure, including proteins, DNA and enzymes that cause cell death. [42] The oxidative dissolution of AgNPs makes them a good reservoir for silver ions, which may be another important reason for the bactericidal activity of these nanomaterials.…”

Section: Ft-ir Analysis Of Agnpsmentioning

confidence: 99%

Monascus pigment‐mediated green synthesis of silver nanoparticles: Catalytic, antioxidant, and antibacterial activity

Zhang

Guo

et al. 2021

Applied Organom Chemis

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In order to explore green and efficient methods for the synthesis of nanoparticles, silver nanoparticles (AgNPs) were rapidly synthesized assisted by the Monascus pigments under simulated sunlight. Prepared AgNPs were characterized using various analytical tools such as ultraviolet‐visible (UV–Vis) spectroscopy, Zeta, X‐ray diffraction (XRD), scanning electron microscopy (SEM)–energy dispersive X‐ray (EDX), and Fourier‐transform infrared spectroscopy (FT‐IR). There is an absorption peak at 410 nm in the UV–Vis absorption spectrum, which confirms the formation of AgNPs. XRD results affirmed that the synthesized AgNPs were crystalline in nature and preferentially oriented in (111) plane. The morphology of the nanoparticles was found to be spherical by SEM and particle size analysis study revealed the average particle size to be 18.10 ± 0.30 nm. Zeta potential measurement showed excellent stability of AgNPs with negative values of −9.2 ± 0.66 mV. The FT‐IR study represented involvement of functional groups in AgNPs synthesis. The biosynthesized AgNPs exhibited significant antibacterial activity with zones of inhibition of 9.1, 14.5, and 18.0 mm against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus, respectively. Through the determination of hydroxyl radical scavenging capacity, ABTS radical scavenging capacity, total reducing power, and total antioxidant capacity, it is proved that the AgNPs have certain antioxidant capacity. In addition, AgNPs could catalyze the degradation of methylene blue, methyl orange, and congo red with a pseudo first‐order rate constants of 0.07998, 0.24666, and 0.11805 min−1, respectively. Overall studies indicated that the Monascus pigments could be used to prepare AgNPs with potential antibacterial, antioxidant, and extraordinary catalytic activity. It can be used in biomedical applications, commercial food packaging, pathogen mitigation, and industrial waste water management.

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“…Various triterpenes found in a large group of natural products have been investigated for pharmacological activities such as antiviral, antiprotozoal and anti‐inflammatory activities [16] . Previous studies have also reported variations in the antimicrobial activities of AgNPs synthesized with different plant extracts [1a,b,17] …”

Section: Resultsmentioning

confidence: 98%

Biogenic Synthesis of Silver Nanoparticles with High Antimicrobial and Catalytic Activities using Sheng Di Huang (Rehmannia glutinosa)

Yong

Lieu

Cao

et al. 2021

Chemistry An Asian Journal

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Silver nanoparticles (AgNPs) are widely sought after for a variety of biomedical and environmental applications due to their antimicrobial and catalytic properties. We present here a green and simple synthesis of AgNPs utilizing traditional Chinese medicinal herbs. The screening of 20 aqueous herb extracts shows that Sheng Di Huang (Rehmannia glutinosa) had the most promising potential in producing AgNPs of 30±6 nm, with narrow size distribution and high crystallinity. The antimicrobial activities of these AgNPs conducted on E. coli cells were found to be superior in comparison to poly(vinylpyrrolidone)‐capped AgNPs synthesized using common chemical method. Additionally, the AgNPs obtained possess excellent catalytic performance in the reduction of 4‐nitrophenol to 4‐aminophenol. We compared the phytochemical and FTIR spectral analyses of the herb extract before and after synthesis, in order to elucidate the phytochemicals responsible for the reduction of Ag+ ions and the capping of the AgNPs produced.

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Green synthesis of silver nanoparticles and their applications as an alternative antibacterial and antioxidant agents

Cited by 197 publications

References 38 publications

Bioavailability and antioxidant activity of nanotechnology‐based botanic antioxidants

Bioavailability and antioxidant activity of nanotechnology‐based botanic antioxidants

Monascus pigment‐mediated green synthesis of silver nanoparticles: Catalytic, antioxidant, and antibacterial activity

Biogenic Synthesis of Silver Nanoparticles with High Antimicrobial and Catalytic Activities using Sheng Di Huang (Rehmannia glutinosa)

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