Effect of Au/Ag bimetallic nanoparticles in the lasing characteristics of dye doped microring embedded hollow polymer optical fiber

Anugop, B.; Kailasnath, M.

doi:10.1016/j.matpr.2022.03.472

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…This is an example of how the LA method is frequently used to create Au–Ag bimetallic nanoparticles [ 99 ]. Anugop et al, used laser ablation to make a bimetallic nanocomposite of Au–Ag scattered in chitosan for antibacterial purposes [ 100 ].…”

Section: Synthesis Routes Of Bimetallic Au–ag Nanoparticlesmentioning

confidence: 99%

Bimetallic Au–Ag Nanoparticles: Advanced Nanotechnology for Tackling Antimicrobial Resistance

et al. 2022

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To date, there are no antimicrobial agents available in the market that have absolute control over the growing threat of bacterial strains. The increase in the production capacity of antibiotics and the growing antibacterial resistance of bacteria have majorly affected a variety of businesses and public health. Bimetallic nanoparticles (NPs) with two separate metals have been found to have stronger antibacterial potential than their monometallic versions. This enhanced antibacterial efficiency of bimetallic nanoparticles is due to the synergistic effect of their participating monometallic counterparts. To distinguish between bacteria and mammals, the existence of diverse metal transport systems and metalloproteins is necessary for the use of bimetallic Au–Ag NPs, just like any other metal NPs. Due to their very low toxicity toward human cells, these bimetallic NPs, particularly gold–silver NPs, might prove to be an effective weapon in the arsenal to beat emerging drug-resistant bacteria. The cellular mechanism of bimetallic nanoparticles for antibacterial activity consists of cell membrane degradation, disturbance in homeostasis, oxidative stress, and the production of reactive oxygen species. The synthesis of bimetallic nanoparticles can be performed by a bottom-up and top-down strategy. The bottom-up technique generally includes sol-gel, chemical vapor deposition, green synthesis, and co-precipitation methods, whereas the top-down technique includes the laser ablation method. This review highlights the key prospects of the cellular mechanism, synthesis process, and antibacterial capabilities against a wide range of bacteria. Additionally, we also discussed the role of Au–Ag NPs in the treatment of multidrug-resistant bacterial infection and wound healing.

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Section: Synthesis Routes Of Bimetallic Au–ag Nanoparticlesmentioning

confidence: 99%

Bimetallic Au–Ag Nanoparticles: Advanced Nanotechnology for Tackling Antimicrobial Resistance

et al. 2022

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Blue micro-lasing from dye-doped hollow polymer optical fiber with an Ag nanoparticle-doped microring

B.,

Simon,

Madanan

2023

Appl. Opt.

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We report the modified and improved whispering gallery mode laser emission from a hollow polymer optical fiber doped with 1,4-Bis(2-methyl styryl) benzene (Bis-MSB), a high-quantum yield dye with a blue emission, with the introduction of an Ag nanoparticle-doped microring. In the presence of the Ag-doped microring, the laser emission was enhanced, and a reduction in the laser threshold from 40 to 15 µJ was attained, along with a small redshift in the emission spectrum. The quality factor of the microring embedded hollow polymer optical fiber was found to be 1.3×103. Moreover, the introduction of an Ag-doped microring inside the hollow polymer optical fiber helps enhance certain lasing modes. The observations open the way for the development of low-threshold polymer optical fiber lasers in the blue region.

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Effect of Au/Ag bimetallic nanoparticles in the lasing characteristics of dye doped microring embedded hollow polymer optical fiber

Cited by 2 publications

References 9 publications

Bimetallic Au–Ag Nanoparticles: Advanced Nanotechnology for Tackling Antimicrobial Resistance

Bimetallic Au–Ag Nanoparticles: Advanced Nanotechnology for Tackling Antimicrobial Resistance

Blue micro-lasing from dye-doped hollow polymer optical fiber with an Ag nanoparticle-doped microring

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