Assessment of Silver Nanoparticle from Cocos nucifera (coconut) Shell on Dengue Vector Toxicity, Detoxifying Enzymatic Activity and Predatory Response of Aquatic Organism

Gomathi, M.; Prakasam, A.; Chandrasekaran, R.; Gurusubramaniam, Guruswami; Revathi, Kannan; Rajeshkumar, S.

doi:10.1007/s10876-019-01596-7

Cited by 9 publications

(3 citation statements)

References 35 publications

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“…The chemical reduction approach, for example, is the most widely utilized synthetic route for Ag NPs [7]. In the top-down method, specified ablations, such as thermal decomposition, lithography, mechanical milling, thermal/laser ablation, sputtering, and etching, are used to break down a suitable bulk substance into nanoparticles [31,32]. The Ag NPs are generally created in the top-down technique by evaporation/condensation in a tube heater at air compression.…”

Section: Resultsmentioning

confidence: 99%

Antimicrobial Properties of Silver Nitrate Nanoparticle and Its Application in Endodontics and Dentistry: A Review of Literature

Thangavelu

Adil

Arshad

et al. 2021

Journal of Nanomaterials

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Background. The silver nanoparticles (Ag NPs) are the most acceptable and excellent nanotechnology-based product among all metallic nanoparticles (noble metals). They are novel in terms of good conductivity, catalytic, chemical stability, and most significant anti-inflammatory and antiviral activities. Aim. This review is aimed at understanding the synthesis, mechanism, and applications of Ag NPs in dentistry and their qualities to aid clinicians and researchers. Materials and Methods. A electronic search for literature was performed on the Google Scholar, PubMed, EMBASE, and Web of Science databases for related articles using multiple keywords. The keywords used were antimicrobial properties, mechanism of action, and current uses of Ag NPs in dentistry. The search was limited to articles published in the English language; no deadline was set for publications. Results. About 185 articles were considered relevant to the reported research out of 6420 electronic search results. Only the publications that were required were received after all abstracts were assessed for relevance. After a final electronic and manual search, roughly 47 research publications were found to be helpful in this study. Conclusion. The Ag NPs, unlike other biomaterials used in dentistry, have unique biological features and could be used in endodontics, restorative dentistry, periodontology, prosthetic dentistry, implantology, and oral malignancies, because of their antimicrobial, antifungal, and antiviral effects.

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Section: Resultsmentioning

confidence: 99%

Antimicrobial Properties of Silver Nitrate Nanoparticle and Its Application in Endodontics and Dentistry: A Review of Literature

Thangavelu

Adil

Arshad

et al. 2021

Journal of Nanomaterials

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“…Different parts of the Coconut palm are well established in the synthesis of nanoparticles which are reported to be applicable as antimicrobial agents [ 28 , 29 ], antioxidants [ 30 ], drug delivery systems [ 31 ], anticancer and photocatalytic agents [ 32 ]. Cocos nucifera mediated silver nanoparticles are established against staphylococcal infections [ 33 ], dengue vector [ 34 ] and possess larvicidal [ 35 ] activities.…”

Section: Introductionmentioning

confidence: 99%

Phytonano silver for cosmetic formulation- synthesis, characterization, and assessment of antimicrobial and antityrosinase potential

George,

Devi

2024

Discover Nano

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Novel formulations of silver nanoparticles remain exciting if it is applicable for cosmetic purposes. This study proposes a value-added brand-new nanomaterial for improving skin complexion by inhibiting melanin development. This work aims to develop cost effective, efficient, natural silver nanoparticles phytomediated by aqueous extract of leaf sheath scales of Cocos nucifera (Cn-AgNPs) having potential as tyrosinase inhibitors hindering melanin synthesis. The formation of Cn-AgNPs was assessed spectrophotometrically and confirmed by the sharp SPR spectrum at 425 nm. The chemical composition profiling was characterized by X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopy. The morphology was confirmed by Field Emission Scanning Electron Microscopy (FESEM) and the thermal stability was assessed by Thermogravimetric analysis (TGA). Pharmacological application studies supported the materialization of Cn-AgNPs with significant antityrosinase potential and considerably improved antibacterial and antioxidant properties. Cn-AgNPs showed potential antibacterial effects against gram-positive and negative strains, including prominent infectious agents of the skin. Antioxidant capacity was confirmed with an IC50 of 57.8 μg/mL by DPPH radical scavenging assay. Furthermore, in vitro melanin content determination was performed using SK-MEL cells. Cell line studies proved that Cn-AgNPs decrease the melanin content of cells. The IC50 value obtained was 84.82 μg/mL. Hence Cn-AgNPs is proposed to be acting as a whitening agent through lessening cellular melanin content and as a significant inhibitor of tyrosinase activity. The antioxidant properties and antibacterial effects can contribute to skin rejuvenation and can prevent skin infections as well. This evidence proposes the development of a new nanostructured pharmaceutical and cosmetic formulation from Cocos nucifera leaf sheath scales.

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“…Furthermore, incidences of the arthropod‐borne maladies have been magnified due to rapid fluctuations in weather (temperature, humidity), unregulated urbanization and deplorable sanitation, globally (Xie et al, 2018; Salem et al, 2020). Among arboviruses, spread of dengue by Aedes aegypti and Aedes albopictus has significantly escalated in recent years (Gomathi et al, 2019; Rasool et al, 2020). According to WHO, approximately 390 million dengue cases occur (90–96 million cases with clinical severity) annually (WHO 2019b; WHO, 2019a).…”

Section: Introductionmentioning

confidence: 99%

Sonication and heat‐mediated synthesis, characterization and larvicidal activity of sericin‐based silver nanoparticles against dengue vector (Aedes aegypti)

Summer

Tahir

Ali

2023

Microscopy Res & Technique

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Fabrication, characterization and evaluation of the larvicidal potential of novel silk protein (sericin)‐based silver nanoparticles (Se‐AgNPs) were the prime motives of the designed study. Furthermore, investigation of the sericin as natural reducing or stabilizing agent was another objective behind this study. Se‐AgNPs were synthesized using sonication and heat. Fabricated Se‐AgNPs were characterized using particle size analyzer, UV spectrophotometry, FTIR and SEM which confirmed the fabrication of the Se‐AgNPs. Size of sonication‐mediated Se‐AgNPs was smaller (7.49 nm) than heat‐assisted Se‐AgNPs (53.6 nm). Being smallest in size, sonication‐assisted Se‐AgNPs revealed the significantly highest (F4,10 = 39.20, p = .00) larvicidal activity against fourth instar lab and field larvae (F4,10 = 1864, p = .00) of dengue vector (Aedes aegypti) followed by heat‐assisted Se‐AgNPs and positive control (temephos). Non‐significant larvicidal activity was showed by silver (without sericin) which made the temperature stability of silver, debatable. Furthermore, findings of biochemical assays (glutathione‐S transferase, esterase, and acetylcholinesterase) showed the levels of resistance in field strain larvae. Aforementioned findings of the study suggests the sonication as the best method for synthesis of Se‐AgNPs while the larvicidal activity is inversely proportional to the size of Se‐AgNPs, i.e., smallest the size, highest the larvicidal activity. Conclusively, status of the sericin as a natural reducing/stabilizing agent has been endorsed by the findings of this study.

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Assessment of Silver Nanoparticle from Cocos nucifera (coconut) Shell on Dengue Vector Toxicity, Detoxifying Enzymatic Activity and Predatory Response of Aquatic Organism

Cited by 9 publications

References 35 publications

Antimicrobial Properties of Silver Nitrate Nanoparticle and Its Application in Endodontics and Dentistry: A Review of Literature

Antimicrobial Properties of Silver Nitrate Nanoparticle and Its Application in Endodontics and Dentistry: A Review of Literature

Phytonano silver for cosmetic formulation- synthesis, characterization, and assessment of antimicrobial and antityrosinase potential

Sonication and heat‐mediated synthesis, characterization and larvicidal activity of sericin‐based silver nanoparticles against dengue vector (Aedes aegypti)

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