Synthesis and characterization of silver nanoparticles using Anabaena variabilis as a potential antimicrobial agent

Ahamad, Irshad; Aziz, Nafe; Zaki, Almaz; Fatma, Tasneem

doi:10.1007/s10811-020-02323-w

Cited by 21 publications

(11 citation statements)

References 44 publications

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“…The color transformation from colorless to radish brown initially indicates synthesis of AgNPs. The size range of synthesized AgNPs was found 11-15 nm, with crystalline uniform spherical in shape confirmed by TEM and XRD analysis (Ahamad et al, 2021).…”

Section: Discussionmentioning

confidence: 62%

“…Our earlier finding on biogenic AgNPs derived from A. variabilis showed antibacterial, antifungal, antioxidant (Ahamad et al, 2021). Higher inhibition of biofilm forming C. albicans by AgNPs prompted us to extend our finding on antifungal activity of AgNPs with special references to C. albicans biofilm.…”

Section: Resultsmentioning

confidence: 70%

“…X-ray diffraction (XRD) studies of nanoparticles were performed for determining the nature and size of nanoparticles using the Debye-Scherrer equation. All the above characterization was done as detailed in our earlier publication (Ahamad et al, 2021).…”

Section: Synthesis and Characterization Of Silver Nanoparticlesmentioning

confidence: 99%

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Antibiofilm Activities of Biogenic Silver Nanoparticles Against Candida albicans

et al. 2022

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Biofilms are microbial colonies that are encased in an organic polymeric matrix and are resistant to antimicrobial treatments. Biofilms can adhere to both biotic and abiotic surfaces, allowing them to colonize medical equipment such as urinary and intravenous catheters, mechanical heart valves, endotracheal tubes, and prosthetic joints. Candida albicans biofilm is the major etiological cause of the pathogenesis of candidiasis in which its unobstructed growth occurs in the oral cavity; trachea, and catheters that progress to systemic infections in the worst scenarios. There is an urgent need to discover novel biofilm preventive and curative agents. In the present investigation, an effort is made to observe the role of cyanobacteria-derived AgNPs as a new antibiofilm agent with special reference to candidiasis. AgNPs synthesized through the green route using Anabaena variabilis cell extract were characterized by UV–visible spectroscopy. The nanoparticles were spherical in shape with 11–15 nm size and were monodispersed. The minimum inhibitory concentration (MIC) of AgNPs was obtained at 12.5 μg/mL against C. albicans. AgNPs 25 μg/mL showed 79% fungal cell membrane permeability and 22.2% ROS production. AgNPs (25 μg/mL) also facilitated 62.5% of biofilm inhibition and degradation. Therefore, AgNPs could be considered as a promising antifungal agent to control biofilm produced by C. albicans.

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Section: Discussionmentioning

confidence: 62%

Section: Resultsmentioning

confidence: 70%

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Antibiofilm Activities of Biogenic Silver Nanoparticles Against Candida albicans

et al. 2022

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“…It was used to nd the functional groups in plant extracts that were responsible for the reduction of Ag + ions during the synthesis of silver nanoparticles. It was analyzed with a resolution of 16cm − 1 and a range of 4000−500cm − 1 [18] .…”

Section: Ftir Analysis Of Mfhe and Mfhenpmentioning

confidence: 99%

Anti-Diabetic Activity of Silver Nanoparticles Synthesized from the Hydroethanolic Extract of Myristica fragrans Seeds

Perumalsamy

Krishnadhas

2022

Appl Biochem Biotechnol

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Myristica fragrans, also known as nutmeg is a spice that cures various diseases. This study aimed to synthesize silver nanoparticles from a hydroethanolic extract of Myristica fragrans seeds (MFHE) and evaluate their anti-diabetic properties. To MFHE, AgNO 3 solution was added and exposed to sunlight to produce silver nanoparticles from hydroethanolic seed extract of Myristica fragrans (MFHENP). The MFHENP was characterized by numerous techniques. UV-visible spectroscopy con rmed the formation of silver nanoparticles by the absorption peak at 430nm. Scanning electron microscopy (SEM) studies revealed the shape and size of the particles at the range of 50-60nm. Energy-dispersive X-ray spectroscopy (EDX) disclosed the presence of silver ions. X-ray diffraction spectrum con rmed the crystalline nature of silver nanoparticles by the peak at 39 o . FTIR analysis revealed the functional groups present in MFHE as well as in MFHENP and Zeta potential analysis was found to be 14mV. Furthermore, in-vitro anti-diabetic activity was investigated. MFHENP showed signi cant e ciency against the inhibition of alpha-amylase and alpha-glucosidase enzymes and also MFHENP retarded the glucose transport across the membrane which is analyzed by glucose diffusion and glucose uptake assays.Acarbose is used as a standard for all these methods and MFHENP e ciency proves their therapeutic potential for the treatment of diabetes mellitus.

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“…Ag NPs synthesized from green algae showed excellent Shigella dysenteriae (PTCC 1188), Proteus vulgaris (PTCC 1182), and Klebsiella pneumonia (ATCC 10031) around the wells, Figure11(b) (Nazari and Jookar Kashi 2021). Ag NPs synthesized using Anabaena variabilis revealed antioxidant activity and antimicrobial activity(Ahamad et al 2021). The IC 50 value found in the DPPH (2,2-diphenyl-1-picrylhydrazyl) scavenging activity was 13.22 ± 1.25 µg mL −1 while in the case of Ag nanoparticles synthesized by Ecklonia cava it was found 198 µg mL −1 .…”

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confidence: 99%

Nanomaterials for Sustainability: A Review on Green Synthesis of Nanoparticles Using Microorganisms

Jadoun

Chauhan

Zarrintaj

et al. 2021

Preprint

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Nanotechnology has permeated all areas of sciences as one of the most propitious technology with the deployment of nanoparticles in environmental remediation and biomedical fields; their synthesis under greener conditions has been bourgeoned using microorganisms, plants, etc. to decrease the use of toxic chemicals. Synthesis of nanoparticles by exploiting microorganisms has opened up a new prospect at the interface of nanotechnology, chemistry, and biology enabling access via a biocompatible, safe, sustainable, eco-friendly, and reliable route; microorganisms offer crystal growth, stabilization, and prevention of aggregation thus performing a dual role of reducing and capping agent because of the presence of biomolecules such as enzymes, peptides, poly (amino acids), polyhydroxyalkanoate (PHA), and polysaccharides. Herein, the microorganisms-based synthesis of various nanoparticles comprising gold, silver, platinum, palladium, copper, titanium dioxide, zinc oxide, iron oxide, and selenium along with their appliances in waste treatment, biomedicine namely cancer treatment, antibacterial, antimicrobial, antifungal, and antioxidants, are deliberated.

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Synthesis and characterization of silver nanoparticles using Anabaena variabilis as a potential antimicrobial agent

Cited by 21 publications

References 44 publications

Antibiofilm Activities of Biogenic Silver Nanoparticles Against Candida albicans

Antibiofilm Activities of Biogenic Silver Nanoparticles Against Candida albicans

Anti-Diabetic Activity of Silver Nanoparticles Synthesized from the Hydroethanolic Extract of Myristica fragrans Seeds

Nanomaterials for Sustainability: A Review on Green Synthesis of Nanoparticles Using Microorganisms

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