Ionic liquid behavior and high thermal stability of silver chloride nanoparticles: Synthesis and characterization

Siddiqui, Mohammed Rafiq H.; Adil, Syed Farooq; Nour, Kholoud; Assal, Mohamed E.; Al–Warthan, Abdulrahman

doi:10.1016/j.arabjc.2013.05.005

Cited by 20 publications

(5 citation statements)

References 14 publications

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“…Moreover, biosynthesized AgCl-NPs were characterized with standard material characterization techniques, viz., XRD, FTIR, SEM, TEM, and EDS. In the present study, the crystallographic planes peaks in the XRD pattern ( Figure 3 ) showed that the prepared crystalline structure of biogenic AgCl-NPs is a mixture of metallic Ag and AgCl [ 32 , 33 ]. Previous research had shown that B. mojavensis was for the synthesis of AgCl-NPs [ 34 , 35 ], but the size and shape of synthesized AgNPs depended on the different strains.…”

Section: Discussionmentioning

confidence: 82%

Biosynthesis of Silver Chloride Nanoparticles by Rhizospheric Bacteria and Their Antibacterial Activity against Phytopathogenic Bacterium Ralstonia solanacearum

Alamer

Tomah

et al. 2021

Molecules

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Ralstonia solanacearum is the most destructive pathogen, causing bacterial wilt disease of eggplant. The present study aimed to develop green synthesis and characterization of silver chloride nanoparticles (AgCl-NPs) by using a native bacterial strain and subsequent evaluation of their antibacterial activity against R. solanacearum. Here, a total of 10 bacterial strains were selected for the biosynthesis of AgCl-NPs. Among them, the highest yield occurred in the synthesis of AgCl-NPs using a cell-free aqueous filtrate of strain IMA13. Ultrastructural observation revealed that the AgCl-NPs were spherical and oval with smooth surfaces and 5–35 nm sizes. XRD analysis studies revealed that these particles contained face-centered cubic crystallites of metallic Ag and AgCl. Moreover, FTIR analysis showed the presence of capping proteins, carbohydrates, lipids, and lipopeptide compounds and crystalline structure of AgCl-NPs. On the basis of phylogenetic analysis using a combination of six gene sequences (16S, gyrA, rpoB, purH, polC, and groEL), we identified strain IMA13 as Bacillus mojavensis. Three kinds of lipopeptide compounds, namely, bacillomycin D, iturin, and fengycin, forming cell-free supernatant produced by strain IAM13, were identified by MALDI-TOF mass spectrometry. Biogenic AgCl-NPs showed substantial antibacterial activity against R. solanacearum at a concentration of 20 µg/mL−1. Motility assays showed that the AgCl-NPs significantly inhibited the swarming and swimming motility (61.4 and 55.8%) against R. solanacearum. Moreover, SEM and TEM analysis showed that direct interaction of AgCl-NPs with bacterial cells caused rupture of cell wall and cytoplasmic membranes, as well as leakage of nucleic acid materials, which ultimately resulted in the death of R. solanacearum. Overall, these findings will help in developing a promising nanopesticide against phytopathogen plant disease management.

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Section: Discussionmentioning

confidence: 82%

Biosynthesis of Silver Chloride Nanoparticles by Rhizospheric Bacteria and Their Antibacterial Activity against Phytopathogenic Bacterium Ralstonia solanacearum

Alamer

Tomah

et al. 2021

Molecules

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“…Silver nanoparticles have drawn intensive interest in the recent years due to their low-cost, high efficiency, and unique optical and electronic properties which lead to potential applications in industrial fields. In the prolific literature of metal nanoparticles, silver nanoparticles have acquired a lot of attention due to the wide range of properties displayed by 2 Journal of Nanomaterials them in the area of catalysis, electronics, sensors, and surface enhanced Raman scattering (SERS) [14][15][16][17]. Other than these, medical field is one of the leading areas of research where AgNPs have been found to play an important role due to the strong bactericidal and inhibitory properties against broad spectrum of bacterial strains possessed by them.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Biological Activities of Chemically Synthesized Silver Nanoparticles

Mostafa

Sayed

Solkamy

et al. 2015

Journal of Nanomaterials

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Silver nanoparticles were synthesized by the earlier reported methods. The synthesized nanoparticles were characterized using ultraviolet-visible spectrophotometry (UV/Vis), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), and X-ray powder diffraction (XRD). The synthesized materials were also evaluated for their antibacterial activity against Gram positive and Gram negative bacterial strains. TEM micrograph showed the spherical morphology of AgNPs with size range of 40–60 nm.The synthesized nanoparticles showed a strong antimicrobial activity and their effect depends upon bacterial strain as AgNPs exhibited greater inhibition zone forPseudomonas aeruginosa(19.1 mm) followed byStaphylococcus aureus(14.8 mm) andS. pyogenes(13.6 mm) while the least activity was observed forSalmonella typhi(12.5 mm) at concentration of 5 µg/disc. The minimum inhibitory concentration (MIC) of AgNPs againstS. aureuswas 2.5 µg/disc and less than 2.5 µg/disc forP. aeruginosa. These results suggested that AgNPs can be used as an effective antiseptic agent for infectious control in medical field.

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“…7a ) are in correspondence with that of cubic silver chloride (ICSD No. 64734) 44 . To examine the substituent effect for silanol synthesis, a Hammett plot 45 analysis was done by calculating the rates for individual substrates with different types of p -substituents on the aryl group.…”

Section: Resultsmentioning

confidence: 99%

“…3). A representative example of dihydrodiphenylsilane was also shown, which can be successfully converted to silanediol (44) in 60% yield. To demonstrate the amenability of this photochemical protocol, late-stage modification of a series of natural products and drug derivatives was examined.…”

Section: Scope Of the Methodologymentioning

confidence: 99%

Highly scalable photoinduced synthesis of silanols via untraversed pathway for chlorine radical (Cl•) generation

Saha,

Ali,

Werz

et al. 2023

Nat Commun

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The emergence of visible light-mediated synthetic transformations has transpired as a promising approach to redefine traditional organic synthesis in a sustainable way. In this genre, transition metal-mediated photoredox catalysis has led the way and recreated a plethora of organic transformations. However, the use of photochemical energy solely to initiate the reaction is underexplored. With the direct utilization of photochemical energy herein, we have established a general and practical protocol for the synthesis of diversely functionalized organosilanols, silanediols, and polymeric siloxanol engaging a wide spectrum of hydrosilanes under ambient reaction conditions. Streamlined synthesis of bio-active silanols via late-stage functionalization underscores the importance of this sustainable protocol. Interestingly, this work also reveals photoinduced non-classical chlorine radical (Cl•) generation from a readily available chlorinated solvent under aerobic conditions. The intriguing factors of the proposed mechanism involving chlorine and silyl radicals as intermediates were supported by a series of mechanistic investigations.

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Ionic liquid behavior and high thermal stability of silver chloride nanoparticles: Synthesis and characterization

Cited by 20 publications

References 14 publications

Biosynthesis of Silver Chloride Nanoparticles by Rhizospheric Bacteria and Their Antibacterial Activity against Phytopathogenic Bacterium Ralstonia solanacearum

Biosynthesis of Silver Chloride Nanoparticles by Rhizospheric Bacteria and Their Antibacterial Activity against Phytopathogenic Bacterium Ralstonia solanacearum

Evaluation of Biological Activities of Chemically Synthesized Silver Nanoparticles

Highly scalable photoinduced synthesis of silanols via untraversed pathway for chlorine radical (Cl•) generation

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