Biogenic synthesis of silver nanoparticles mediated by Acinetobacter indicus and 	its biomedical applications

Biogenic synthesis of silver nanoparticles synthesized from Hymenocallis species (Spider Lilly) leaf extract was subjected for investigation of its antimicrobial property against four bacterial species (E. coli, Salmonella sp., Streptococcus sp. & Staphylococcus sp.). The results revealed that synthesized nanoparticles solution very much justify the color change property from initial light yellow to final reddish brown during the synthesis producing a characteristics absorption peak in the range of 434-466 nm. As antimicrobial agents, their efficacy was evaluated by analysis of variance in between the species and among the different concentration of AgNPs solution, which clearly showed that there was significant variation in the antibiotic property between the four different concentrations of AgNPs solution and also among four different species of bacteria taken under studies. However, silver nanoparticles solution of 1: 9 and 1:4 were proved comparatively more efficient as antimicrobial agents against four species of bacteria.

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Biogenic synthesis of silver nanoparticles using Trigonella foenum-graecum seed extract: Characterization, photocatalytic and antibacterial activities

Sensors and Actuators A Physical ◽

10.1016/j.sna.2021.112670 ◽

2021 ◽

Vol 323 ◽

pp. 112670 ◽

Cited By ~ 1

Author(s):

Manal A. Awad ◽

Awatif A. Hendi ◽

Khalid Mustafa Ortashi ◽

Batool Alzahrani ◽

Dina Soliman ◽

...

Keyword(s):

Silver Nanoparticles ◽

Antibacterial Activities ◽

Seed Extract ◽

Biogenic Synthesis ◽

Trigonella Foenum Graecum

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Biogenic synthesis, characterization and antimicrobial activity of Ixora brachypoda (DC) leaf extract mediated silver nanoparticles

Journal of King Saud University - Science ◽

10.1016/j.jksus.2020.101296 ◽

2020 ◽

pp. 101296

Author(s):

Meghashyama Bhat ◽

Bidhayak Chakraborty ◽

Raju Suresh Kumar ◽

Abdulrahman I. Almansour ◽

Natarajan Arumugam ◽

...

Keyword(s):

Antimicrobial Activity ◽

Silver Nanoparticles ◽

Leaf Extract ◽

Biogenic Synthesis

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Corrigendum to “Biogenic synthesis of silver nanoparticles: Antibacterial and cytotoxic potential’ [Saudi J. Biol. Sci. 27(5) (2020) 1340–1351]

Saudi Journal of Biological Sciences ◽

10.1016/j.sjbs.2021.08.065 ◽

2021 ◽

Author(s):

Asma S. Algebaly ◽

Afrah E. Mohammed ◽

Nael Abutaha ◽

Mudawi M. Elobeid

Keyword(s):

Silver Nanoparticles ◽

Cytotoxic Potential ◽

Biogenic Synthesis

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Preparation of Silver Nanoparticles and Their Industrial and Biomedical Applications: A Comprehensive Review

Advances in Materials Science and Engineering ◽

10.1155/2015/165257 ◽

2015 ◽

Vol 2015 ◽

pp. 1-16 ◽

Cited By ~ 86

Author(s):

Adnan Haider ◽

Inn-Kyu Kang

Keyword(s):

Silver Nanoparticles ◽

Biomedical Applications ◽

Consumer Products ◽

Ag Nps ◽

New Techniques ◽

Governing Factor ◽

Wide Range ◽

Microbial Proliferation ◽

Synthetic Routes ◽

Biomedical Fields

Silver nanoparticles (Ag-NPs) have diverted the attention of the scientific community and industrialist itself due to their wide range of applications in industry for the preparation of consumer products and highly accepted application in biomedical fields (especially their efficacy against microbes, anti-inflammatory effects, and wound healing ability). The governing factor for their potent efficacy against microbes is considered to be the various mechanisms enabling it to prevent microbial proliferation and their infections. Furthermore a number of new techniques have been developed to synthesize Ag-NPs with controlled size and geometry. In this review, various synthetic routes adapted for the preparation of the Ag-NPs, the mechanisms involved in its antimicrobial activity, its importance/application in commercial as well as biomedical fields, and possible application in future have been discussed in detail.

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Alumina-Hydroxyapatite-Silver Spheres With Antibacterial Activity

Dose-Response ◽

10.1177/15593258211011337 ◽

2021 ◽

Vol 19 (2) ◽

pp. 155932582110113

Author(s):

Pamela Nair Silva-Holguín ◽

Simón Yobanny Reyes-López

Keyword(s):

Drug Resistance ◽

Silver Nanoparticles ◽

Biomedical Applications ◽

Antibacterial Properties ◽

Spectroscopic Studies ◽

Gram Positive ◽

Bioactive Scaffolds ◽

Functional Factors ◽

Synthetic Routes ◽

Silver Spheres

Researchers are currently looking for materials that are stable, functional, aesthetic, and biocompatible without infections. Therefore, there is a great interest in obtaining a material that has a balance between aesthetic, biological, mechanical, and functional factors, which can be used as an infection control material. The addition of hydroxyapatite to alumina make highly bioactive scaffolds with mechanical strength. Biomedical applications require antibacterial properties; therefore, this idea leads to great interest in the development of new synthetic routes of ceramic biomaterials that allow the release of nanoparticles or metal ions. This investigation presents the obtention of alumina-hydroxyapatite spheres doped with silver nanoparticles with antibacterial effect against various Gram-positive and negative bacteria related to drug-resistance infections. The microstructural and spectroscopic studies demonstrate that the spheres exhibit a homogeneous structure and crystal hydroxyapatite and silver nanoparticles are observed on the surface. The antimicrobial susceptibility was verified with the agar diffusion and turbidimetry methods in Gram-negative ( Escherichia coli and Pseudomonas aeruginosa) and Gram-positive ( Staphylococcus aureus and Bacillus subtilis) bacteria. All bacteria used were susceptible to the alumina-hydroxyapatite-silver spheres even at lower silver concentration. The composites have a higher possibility for medical applications focused on the control of drug-resistance microorganisms.

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Biochemical Evaluation of Silver Nanoparticles in Wistar Rats

International Scholarly Research Notices ◽

10.1155/2014/196091 ◽

2014 ◽

Vol 2014 ◽

pp. 1-8 ◽

Cited By ~ 12

Author(s):

Oluyomi Stephen Adeyemi ◽

Ifeoluwa Adewumi

Keyword(s):

Silver Nanoparticles ◽

Biomedical Applications ◽

Wistar Rats ◽

Biochemical Analysis ◽

Significant Loss ◽

Male Rats ◽

Rat Serum ◽

Show Evidence ◽

Group A ◽

Biochemical Evaluation

Background. Silver nanoparticles have found wider and increasing biomedical applications due to their broad antimicrobial characteristics. However, toxicity of nanoparticles is a subject of continued controversy, thus necessitating further studies in this direction. Objectives. This study investigated the biochemical effects of silver nanoparticles in Wistar rats. Materials and Methods. Forty male rats were randomly distributed into eight experimental groups of five. Group A served as the control and received distilled water. Groups B to H were orally exposed to varying concentrations of silver nanoparticles (AgNPs) at 100, 1000, and 5000 mg/kg daily for 7, 14, and 21 days alternately. Following cessation of treatments, rats were sacrificed and the blood and other vital organs were collected and prepared as specimens for biochemical analysis. Results. Administration of AgNPs to rats did not produce significant loss in feed intake and body weight. However, rat exposure to AgNPs caused significant alterations to levels of serum and tissue AST, ALT, and ALP. At the 100 mg/kg AgNPs exposure, rat serum and tissue AST and ALT levels were significantly decreased (P < 0.05). In contrast, AgNPs administration elevated (P < 0.05) ALP levels in rat serum and tissues. Conclusion. We show evidence that AgNPs administration to Wistar rats altered some biochemical parameters.

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