Aggrandize efficiency of ultra-thin silicon solar cell via topical clustering of silver nanoparticles

Thirugnanasambandan, Theivasanthi; Pal, Kaushik; Sidhu, A. S.; Elkodous, M. Abd; Prasath, Hari; Kulasekarapandian, K; Ayeshamariam, A.; Jeevanandam, Jaison

doi:10.1016/j.nanoso.2018.07.003

Cited by 43 publications

(4 citation statements)

References 35 publications

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“…In Figure 4, the XRD pattern the AgNPs generated from crude melanin of Xylaria sp. displayed four diffraction peaks at (2θ) 38.10 • , 44.85 • , 64.40 • and 77.43 • , which were indexed to the (111), (200), ( 220) and (311) crystalline planes, respectively [48]. These suggested that the synthesized AgNPs having a face-centered cubic (fcc) structure.…”

Section: Xrd Analysismentioning

confidence: 98%

Initial Study on Physiochemical Property and Antibacterial Activity against Skin-Infecting Bacteria of Silver Nanoparticles Biologically Produced Using Crude Melanin from Xylaria sp.

Doan,

Vo,

Tran

2023

Cosmetics

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Silver nanoparticles (AgNPs) produced by biological methods are safer for biomedical applications. Melanins were initially reported to facilitate AgNPs synthesis. Our research found that the stromata of some Xylaria species contained significant amounts of melanins, which had strong antioxidant and anti-ultraviolet activities without toxicity toward human skin cells. This study reported the characteristics and antibacterial activities against skin-infecting bacteria (Staphylococcus aureus and Cutibacterium acnes) of AgNPs synthesized using crude melanin extracted from stromata of Xylaria sp. AgNPs were successfully synthesized by mixing the crude melanin solution with 0.1 M AgNO3 (25:1, v/v) and incubating for 3 h at 100 °C. The SEM found that the average size of the synthesized AgNPs was 18.85 ± 3.75 nm. The melanin-mediated AgNPs displayed significantly higher antibacterial activities against the tested acne-causing bacteria compared to the positive control (Erythromycin). Specifically, the melanin-mediated AgNPs inhibited 90% of S. aureus and C. acnes at 62.5 (µg/mL) and 15.625 (µg/mL), respectively, whereas it required erythromycin up to 4000 (µg/mL) to achieve the same activities. This research illustrated the feasibility of using crude melanin of Xylaria sp. for the direct synthesis of AgNPs and the potential use of the synthesized AgNPs for treating acne-causing bacteria (with further investigation needed).

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Section: Xrd Analysismentioning

confidence: 98%

Initial Study on Physiochemical Property and Antibacterial Activity against Skin-Infecting Bacteria of Silver Nanoparticles Biologically Produced Using Crude Melanin from Xylaria sp.

Doan,

Vo,

Tran

2023

Cosmetics

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“…Various nano-materials possess exceptional physical, chemical, and physiological characteristics allowing them to be perfect candidates for many applications (Maksoud et al 2018(Maksoud et al , 2019Pal et al 2018;Thirugnanasambandan et al 2018;Asiya et al 2020;Elkodous et al 2019c;Govindasamy et al 2019;Pal et al 2019;Jeevanandam et al 2020). Biomedical applications of nano-materials have gained significant consideration from numerous researchers across the past decade because of the important role they can perform in improving the public health (Elkodous et al 2019a, b, d, e;El-Batal et al 2019;Wong et al 2019;Abdelhakim et al 2020;Elkhenany et al 2020;El-Sayed et al 2020a, b).…”

Section: Nanotechnology and Ache-inhibitor Hupa Drug Deliverymentioning

confidence: 99%

Microbial acetylcholinesterase inhibitors for Alzheimer’s therapy: recent trends on extraction, detection, irradiation-assisted production improvement and nano-structured drug delivery

Zaki

El‐Sayed

Elkodous

et al. 2020

Appl Microbiol Biotechnol

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Neurodegenerative disorders especially Alzheimer's disease (AD) are significantly threatening the public health. Acetylcholinesterase (AChE) inhibitors are compounds of great interest which can be used as effective agents for the symptomatic treatment of AD. Although plants are considered the largest source for these types of inhibitors, the microbial production of AChE inhibitors represents an efficient, easily manipulated, eco-friendly, cost-effective, and alternative approach. This review highlights the recent advances on the microbial production of AChE inhibitors and summarizes all the previously reported successful studies on isolation, screening, extraction, and detecting methodologies of AChE inhibitors from the microbial fermentation, from the earliest trials to the most promising anti-AD drug, huperzine A (HupA). In addition, improvement strategies for maximizing the industrial production of AChE inhibitors by microbes will be discussed. Finally, the promising applications of nano-material-based drug delivery systems for natural AChE inhibitor (HupA) will also be summarized. Key Points • AChE inhibitors are potential therapies for Alzheimer's disease. • Microorganisms as alternate sources for prospective production of such inhibitors. • Research advances on extraction, detection, and strategies for production improvement. • Nanotechnology-based approaches for an effective drug delivery for Alzheimer's disease.

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“…CNCs form chiral nematic phases, but other materials have the ability to form this mesophase. Among the materials recently researched to form chiral * E-mail: cfcastrogu@conacyt.mx nematic phase there are rod-like nanomaterials (they possess the same morphology as CNCs), such as CdS nanowires [6], graphene-ZnO nanocomposites [7], ZnO nanowires with graphene [8], and silicon composites with silver nanoparticles [9]. Cellulose nanocrystals are usually obtained using sulfuric acid.…”

Section: Introductionmentioning

confidence: 99%

Self-ordered cellulose nanocrystals and microscopic investigations

Castro-Guerrero

Morales‐Cepeda

Díaz-Guillén

et al. 2020

Materials Science-Poland

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Cellulose nanocrystals were extracted from cotton. The cellulose nanocrystals made a self-assembly structure when dried under slow conditions, as it was revealed by the characterization made to the material. The AFM images of the nanocrystals showed that they had a changing local orientation, pointing in a preferred direction that underwent a periodic change. This periodic change resembles the orientation of a chiral nematic phase. The TEM images showed that the nanocrystals had a rod-like appearance with average length size of 98.5 nm and a diameter of 4.7 nm. The TEM characterization showed the nanocrystals with more details than AFM. In this paper, the self-assembling of CNC was observed by AFM, and further investigations were done by TEM, deconvoluting the process of CNC nanorods aggregation.

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Aggrandize efficiency of ultra-thin silicon solar cell via topical clustering of silver nanoparticles

Cited by 43 publications

References 35 publications

Initial Study on Physiochemical Property and Antibacterial Activity against Skin-Infecting Bacteria of Silver Nanoparticles Biologically Produced Using Crude Melanin from Xylaria sp.

Initial Study on Physiochemical Property and Antibacterial Activity against Skin-Infecting Bacteria of Silver Nanoparticles Biologically Produced Using Crude Melanin from Xylaria sp.

Microbial acetylcholinesterase inhibitors for Alzheimer’s therapy: recent trends on extraction, detection, irradiation-assisted production improvement and nano-structured drug delivery

Self-ordered cellulose nanocrystals and microscopic investigations

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