Anti-oxidant, anti-fungal and cytotoxic effects of silver nanoparticles synthesized using marine fungus Cladosporium halotolerans

2021 ◽  
Author(s):  
Fuad Ameen ◽  
Ali A. Al-Homaidan ◽  
Ahmed Al-Sabri ◽  
Abobakr Almansob ◽  
Saleh AlNAdhari
Keyword(s):  
Silver Nanoparticles ◽  
Marine Fungus ◽  
Cytotoxic Effects ◽  
Anti Oxidant ◽  
Anti Fungal

Antibacterial and Cytotoxic Effects of Silver Nanoparticles on Staphylococcus aureus and Normal Vero Cells

2019 ◽  
Vol 22 (10) ◽  
pp. 184-190
Author(s):  
Rasha Hadi Saleh ◽  
Entisar J. Al-Mukhtar ◽  
Zaytoon A. Al-Khafaji ◽  
Mohammed H. Al Hasnawy ◽  
Huda H. Al-Hasnawy
Keyword(s):  
Staphylococcus Aureus ◽  
Silver Nanoparticles ◽  
Vero Cells ◽  
Cytotoxic Effects

scholarly journals Silver Nanoparticles and Their Antibacterial Applications

2021 ◽  
Vol 22 (13) ◽  
pp. 7202
Author(s):  
Tamara Bruna ◽  
Francisca Maldonado-Bravo ◽  
Paul Jara ◽  
Nelson Caro
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Agents ◽  
Multidrug Resistant ◽  
Secondary Effects ◽  
Cytotoxic Effects ◽  
Factors Affecting ◽  
Gram Positive Bacteria ◽  
Resistant Strains

Silver nanoparticles (AgNPs) have been imposed as an excellent antimicrobial agent being able to combat bacteria in vitro and in vivo causing infections. The antibacterial capacity of AgNPs covers Gram-negative and Gram-positive bacteria, including multidrug resistant strains. AgNPs exhibit multiple and simultaneous mechanisms of action and in combination with antibacterial agents as organic compounds or antibiotics it has shown synergistic effect against pathogens bacteria such as Escherichia coli and Staphylococcus aureus. The characteristics of silver nanoparticles make them suitable for their application in medical and healthcare products where they may treat infections or prevent them efficiently. With the urgent need for new efficient antibacterial agents, this review aims to establish factors affecting antibacterial and cytotoxic effects of silver nanoparticles, as well as to expose the advantages of using AgNPs as new antibacterial agents in combination with antibiotic, which will reduce the dosage needed and prevent secondary effects associated to both.

Optimization and Characterization of Biogenic Silver Nanoparticles Synthesized by Leaves Extract of Alphonsea Madraspatana

2021 ◽  
Vol 17 ◽  
Author(s):  
Amita Sahu ◽  
Sudhanshu Shekhar Swain ◽  
Goutam Ghosh ◽  
Deepak Pradhan ◽  
Dipak Kumar Sahu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Volume Ratio ◽  
Xrd Analysis ◽  
Biofilm Inhibition ◽  
Nano Silver ◽  
E Coli ◽  
Biogenic Silver Nanoparticles ◽  
Icp Ms ◽  
Anti Oxidant

Background: Literature evidences as well as traditional uses of genus Alphonsea reveal significant antimicrobial and anti-oxidant activity, which encourages to consider A. madraspatana to have potent antimicrobials, there by offering potential adjuncts to synthesize improved antimicrobial Silver nanoparticles (AgNPs). The objective of the present exposition is to optimize reaction parameters to synthesize antimicrobial Biogenic Silver nanoparticles (BAgNPs) from extract of A. madraspatana leaves (AML) and to evaluate the effect against bacteria. Methods: BAgNPs was synthesized by optimized reaction. The Synthesized nanoparticles were characterized by UV, IR, ICP-MS and XRD analysis. The antibacterial potency of optimized BAgNPs was evaluated against E. coli by comparing with positive controls. Results: Results of optimization process indicate nanoscale BAgNPs were produced at operating temp. of 45°C for 120 min at pH 8 with 1:5 volume ratio of AgNO3 and extract. Optimized BAgNPs exhibits relatively higher antimicrobial activity (31±1mm) compared to Ciprofloxacin (27±1mm) and marketed nano silver (28± 2 mm). The developed BAgNPs shows comparable biofilm inhibition (86.50%) as compared to marketed nano silver (88.10%) and Ciprofloxacin (83.10%). Conclusion: Experimental evidence suggests methanolic extract of AML under predefined conditions successfully generate nano-template of silver with better antibacterial response against E. coli.

A review on phyto-pharmacology of Oxalis corniculata

2021 ◽  
Vol 24 ◽  
Author(s):  
Iqra Sarfraz ◽  
Azhar Rasul ◽  
Ghulam Hussain ◽  
Muhammad Ajmal Shah ◽  
Bushra Nageen ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Biological Activities ◽  
Chemical Constituents ◽  
Current Effort ◽  
Isolation And Characterization ◽  
Anti Cancer ◽  
Anti Oxidant ◽  
Anti Fungal ◽  
Warm Temperate

: Oxalis corniculata (Oxalidaceae) is a small decumbent and delicate appearing medicinal herb flourishing in warm temperate and tropical domains such as Pakistan and India. Main bioactive chemical constituents of Oxalis plant include several alkaloids, flavonoids, terpenoids, cardiac glycosides, saponins, phlobatannins along with steroids. Due to its polyphenolic, glycosides and flavonoid profile, it is proved to be protective in numerous ailments and exhibit various biological activities such as anti-fungal, anti-cancer, anti-oxidant, anti-bacterial, anti-diabetic, and cardioprotective. Moreover, bioactive phytochemicals from this plant possess significant wound healing potential. Our current effort intends to emphasize on the immense significance of this plant species, which have not been the subject matter of clinical trials and effective pharmacological studies, even though its favored usage has been stated. This review proposes that Oxalis corniculata possess potential for the cure of various diseases, however, further researches on isolation and characterization of bioactive compounds along with pre-clinical trials are compulsory to figure out its pharmacological applications.

Comprehensive GC-MS and FT-IR Profiling of Coleus zeylanicus essential oil and investigation of its anti-fungal and anti - oxidant activities

2021 ◽  
Vol 12 (1) ◽  
pp. 636-642
Author(s):  
Lakshmi M ◽  
Nandagopal S
Keyword(s):  
Antioxidant Activity ◽  
Candida Albicans ◽  
Essential Oil ◽  
Malassezia Furfur ◽  
Fungal Strains ◽  
Anti Oxidant ◽  
Ft Ir ◽  
Dpph Scavenging ◽  
Dpph Scavenging Assay ◽  
Anti Fungal

To evaluate the leaf volatile constituents of essential oil of Coleus zeylanicus and evaluate their anti-oxidant and anti-fungal activity. The Chemical composition of Coleus zeylanicus essential oil was determined using GC-MS and FT-IR analytical techniques. The antioxidant activity was evaluated using DPPH scavenging assay. The anti-fungal effect was tested against two potential pathogenic fungal strains - Candida albicans and Malassezia furfur using agar well diffusion method. The essential oil was profiled by the presence of sesquiterpene hydrocarbons 90.67% of their total composition followed by oxygenated monoterpenes and monoterpene hydrocarbons as 5.3% and 2.1% respectively. The GC-MS results showed 14 compounds from Coleus zeylanicus leaf EO representing 98.07% of the total oil composition. The major component was identified as a-Gurjunene (35.94%), a-bisabolol (10.82%) and G-selinene (4.26%). EO showed remarkable antioxidant activity values of IC50 = 59.78± 3.21µg/ml by DPPH scavenging assay. The essential oil showed interesting anti-fungal effects against two pathogenic fungal strains. The most sensible strains to Coleus zeylanicus EO was Malassezia furfur (32.00±0.50mm) compared to that of Candida albicans (15.00±1.25mm). Hence, Coleus zeylanicus EO has potential application against fungal infection and oxidative stress-related diseases. However, further investigations are necessary to isolate and investigate the action mechanism of these bioactive compounds.

Silver nanoparticles: green synthesis using Phoenix dactylifera fruit extract, characterization, and anti-oxidant and anti-microbial activities

2018 ◽  
Vol 8 (3) ◽  
pp. 407-415 ◽  
Author(s):  
Anas Ejaz Shaikh ◽  
Kshitij Vasant Satardekar ◽  
Rummana Rehman Khan ◽  
Nanda Amit Tarte ◽  
Siddhivinayak Satyasandha Barve
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Phoenix Dactylifera ◽  
Microbial Activities ◽  
Fruit Extract ◽  
Anti Oxidant

scholarly journals In vitro anti-oxidant and cytotoxic analysis of Pogostemon mollis Benth

2016 ◽  
Vol 11 (1) ◽  
pp. 148 ◽  
Author(s):  
Elizabeth George ◽  
Muniyandi Kasipandi ◽  
Mudili Vekataramana ◽  
Kalagatur Naveen Kumar ◽  
Joseph Anthuvan Allen ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Fungal Spores ◽  
Bacterial Cells ◽  
Free Radical Damage ◽  
Cytotoxic Effects ◽  
Anti Oxidant ◽  
Radical Damage

<p class="Abstract">In the present study, the anti-oxidant and cytotoxic effects of the different solvent extracts of <em>Pogostemon mollis</em> were analysed. The phenolic, tannin and flavonoid contents were highest in the ethyl acetate extract and analogous to the antioxidant activity results. The extracts showed activities similar to the standard antioxidants. The extent to which the extracts protect free radical damage on DNA was evaluated and showed good genoprotective effects. Bacterial cells and fungal spores and hyphae showed visible damages due to the treatment of ethyl acetate extract. Finally in the cytotoxic analysis, IC<sub>50</sub> value was calculated based on the absorbance value of different concentrations. It concluded that <em>P. mollis</em> is a prospective candidate for the various therapeutic applications especially its ethyl acetate extract.</p><p> </p>

Phytochemical and pharmacological aspects of Nothapodytes nimmoniana. An overview

2013 ◽  
Vol 59 (1) ◽  
pp. 53-66 ◽  
Author(s):  
Nazeerullah Khan ◽  
Ennus Tajuddin Tamboli ◽  
V.K. Sharma ◽  
Sunil Kumar
Keyword(s):  
Wide Spectrum ◽  
Pharmacological Activities ◽  
Nothapodytes Nimmoniana ◽  
Jammu And Kashmir ◽  
Medicinal Uses ◽  
Anti Cancer ◽  
Anti Oxidant ◽  
Anti Fungal ◽  
Anti Hiv ◽  
Important Medicinal Plant

Summary Nothapodytes nimmoniana (J. Graham) (Icacinaceae), commonly known as Amruta is found in India particularly in Maharashtra, Goa, Kerala, Assam, Jammu and Kashmir as well as Tamilnadu areas. It is an important medicinal plant, the major source of a potent alkaloid, namely camptothecin, of a wide spectrum of pharmacological activities like anti-cancer, anti-HIV, antimalarial, antibacterial, anti-oxidant, anti-inflammatory, anti-fungal and also applied in the treatment of anaemia. Camptothecin is still not synthesized, therefore, its production entirely depends on natural sources. N. nimmoniana is one such plant which yields contain camptothecin in significantly high amount. The plant is gaining international recognition due to its diversified medicinal uses. It is subjected to excessive harvest. It has been categorized as a vulnerable and endangered plant. The present review encompasses the phytochemical, analytical, pharmacological, biotechnological, and other specific aspects of N. nimmoniana.

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