Effect of silver doping on antidiabetic and antioxidant potential of ZnO nanorods

Robkhob, Prissana; Ghosh, Sougata; Bellare, Jayesh; Jamdade, Dhiraj A.; Tang, I‐Ming; Thongmee, Sirikanjana

doi:10.1016/j.jtemb.2019.126448

Cited by 53 publications

(30 citation statements)

References 51 publications

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“…79 Here, ZnO nano-needles and nano-rods combined with Au and Ag enhanced the efficacy of BNPs in inhibiting carbohydrates hydrolyzing enzymes as compared to core-shell Au-Ag BNPs. Similarly, Robkhob et al 80 also demonstrated undoped ZnO nanorods inhibited 84.88 AE 0.37% a-glucosidase activity while Ag-doped ZnO nanorods resulted in 91.19 AE 0.37% inhibition. a-Amylase breaks down the complex starch into simple glucose while a-glucosidase catalyzes the 1,4-a-glucopyranosidic bond to produce a-glucose.…”

Section: Biological Activities Of Bimetallic Npsmentioning

confidence: 81%

Green synthesis of biocompatible core–shell (Au–Ag) and hybrid (Au–ZnO and Ag–ZnO) bimetallic nanoparticles and evaluation of their potential antibacterial, antidiabetic, antiglycation and anticancer activities

et al. 2022

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Section: Biological Activities Of Bimetallic Npsmentioning

confidence: 81%

Green synthesis of biocompatible core–shell (Au–Ag) and hybrid (Au–ZnO and Ag–ZnO) bimetallic nanoparticles and evaluation of their potential antibacterial, antidiabetic, antiglycation and anticancer activities

et al. 2022

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“…It is important to note that the absorption spectra of ZnOAgPs didn’t show superposition with the individual single-component particles which might be attributed to the strong electronic coupling between the Ag and ZnO ( Satter et al, 2014 ). Ag mixed in the ZnO increased separation of charge, while the high ZnO content in the vicinity resulted in the increase in the refractive index of the surrounding medium which resulted in the shifting of the SPR band ( Karmakar et al, 2020 ; Robkhob et al, 2020 ). Further, PL spectra provided strong scientific evidence of the distinct quenching of the emission in ZnOAgPs which was attributed to the efficient charge transfer from ZnO to Ag interface ( Misra et al, 2014 ).…”

Section: Discussionmentioning

confidence: 99%

Catalytic dye degradation by novel phytofabricated silver/zinc oxide composites

et al. 2022

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Phytofabrication of the nanoparticles with exotic shape and size is an attractive area where nanostructures with noteworthy physicochemical and optoelectronic properties that can be significantly employed for photocatalytic dye degradation. In this study a medicinal plant, Plumbago auriculata leaf extract (PALE) was used to synthesize zinc oxide particles (ZnOPs) and silver mixed zinc oxide particles (ZnOAg1Ps, ZnOAg10Ps, ZnO10Ag1Ps) by varying the concentration of the metal precursor salts, i.e. zinc acetate and silver nitrate. The PALE showed significantly high concentrations of polyphenols, flavonoids, reducing sugar, starch, citric acid and plumbagin up to 314.3 ± 0.33, 960.0 ± 2.88, 121.3 ± 4.60, 150.3 ± 3.17, 109.4 ± 2.36, and 260.4 ± 8.90 μg/ml, respectively which might play an important role for green synthesis and capping of the phytogenic nanoparticles. The resulting particles were polydispersed which were mostly irregular, spherical, hexagonal and rod like in shape. The pristine ZnOPs exhibited a UV absorption band at 352 nm which shifted around 370 in the Ag mixed ZnOPs with concomitant appearance of peaks at 560 and 635 nm in ZnO10Ag1Ps and ZnOAg1Ps, respectively. The majority of the ZnOPs, ZnOAg1Ps, ZnOAg10Ps, and ZnO10Ag1Ps were 407, 98, 231, and 90 nm in size, respectively. Energy dispersive spectra confirmed the elemental composition of the particles while Fourier transform infrared spectra showed the involvement of the peptide and methyl functional groups in the synthesis and capping of the particles. The composites exhibited superior photocatalytic degradation of methylene blue dye, maximum being 95.7% by the ZnOAg10Ps with a rate constant of 0.0463 s−1 following a first order kinetic model. The present result clearly highlights that Ag mixed ZnOPs synthesized using Plumbago auriculata leaf extract (PALE) can play a critical role in removal of hazardous dyes from effluents of textile and dye industries. Further expanding the application of these phytofabricated composites will promote a significant complementary and alternative strategy for treating refractory pollutants from wastewater.

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“…In addition to NPs, various of nano structures have been reported to remove ROS, such as nanosheet [ [108] , [109] , [110] ], nanorod [ 111 , 112 ], nanotube [ 113 , 114 ], nanofiber [ 115 , 116 ], and nanomesoporous [ 117 ], have been reported to remove ROS. These nanostructures have many active sites, large specific surface areas, or a specific structural effect, thus improving their ROS-scavenging effect.…”

Section: Ros-scavenging Nanomaterials That Promote Oxidative Damage Repair and Mechanisms Governing This Repairmentioning

confidence: 99%

Reactive-oxygen-species-scavenging nanomaterials for resolving inflammation

Huang

Zheng

et al. 2021

Materials Today Bio

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Reactive oxygen species (ROS) mediate multiple physiological functions; however, the over-accumulation of ROS causes premature aging and/or death and is associated with various inflammatory conditions. Nevertheless, there are limited clinical treatment options that are currently available. The good news is that owing to the considerable advances in nanoscience, multiple types of nanomaterials with unique ROS-scavenging abilities that influence the temporospatial dynamic behaviors of ROS in biological systems have been developed. This has led to the emergence of next-generation nanomaterial-controlled strategies aimed at ameliorating ROS-related inflammatory conditions. Accordingly, herein we reviewed recent progress in research on nanotherapy based on ROS scavenging. The underlying mechanisms of the employed nanomaterials are emphasized. Furthermore, important issues in developing cross-disciplinary nanomedicine-based strategies for ROS-based inflammatory conditions are discussed. Our review of this increasing interdisciplinary field will benefit ongoing studies and clinical applications of nanomedicine based on ROS scavenging.

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Effect of silver doping on antidiabetic and antioxidant potential of ZnO nanorods

Cited by 53 publications

References 51 publications

Green synthesis of biocompatible core–shell (Au–Ag) and hybrid (Au–ZnO and Ag–ZnO) bimetallic nanoparticles and evaluation of their potential antibacterial, antidiabetic, antiglycation and anticancer activities

Green synthesis of biocompatible core–shell (Au–Ag) and hybrid (Au–ZnO and Ag–ZnO) bimetallic nanoparticles and evaluation of their potential antibacterial, antidiabetic, antiglycation and anticancer activities

Catalytic dye degradation by novel phytofabricated silver/zinc oxide composites

Reactive-oxygen-species-scavenging nanomaterials for resolving inflammation

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