A green approach to prepare silver nanoparticles loaded gum acacia/poly(acrylate) hydrogels

2015 ◽  
Vol 80 ◽  
pp. 177-188 ◽  
Author(s):  
S.K. Bajpai ◽  
Mamta Kumari
Keyword(s):  
Silver Nanoparticles ◽  
Gum Acacia ◽  
Green Approach

scholarly journals A REVIEW: A GREEN APPROACH FOR THE SYNTHESIS OF SILVER NANOPARTICLES AND ITS ANTIBACTERIAL APPLICATIONS

2018 ◽  
Vol 11 (8) ◽  
pp. 74 ◽  
Author(s):  
Shyla Marjorie Haqq ◽  
Amit Chattree
Keyword(s):  
Silver Nanoparticles ◽  
Antimicrobial Properties ◽  
Nanoparticle Synthesis ◽  
Silver Ions ◽  
Multidrug Resistant ◽  
X Ray Diffraction ◽  
Green Approach ◽  
Transmission Electron ◽  
Uv Visible ◽  
Silver Nanoparticle Synthesis

  This review is based on the synthesis of silver nanoparticles (AgNPs) using a green approach which is biofabricated from various medicinal plants. AgNPs were prepared from the various parts of the plants such as the flowers, stems, leaves, and fruits. Various physiochemical characterizations were performed using the ultraviolet (UV)-visible spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction spectroscopy, transmission electron microscopy, and energy dispersive spectroscopy. AgNPs were also used to inhibit the growth of bacterial pathogens and were found to be effective against both the Gram-positive and Gram-negative bacteria. For the silver to have antimicrobial properties, it must be present in the ionized form. All the forms of silver-containing compounds with the observed antimicrobial properties are in one way or another source of silver ions. Although the antimicrobial properties of silver have been known, it is thought that the silver atoms bind to the thiol groups in enzymes and subsequently leads to the deactivation of enzymes. For the silver to have antimicrobial properties, it must be present in the ionized form. The study suggested that the action of the AgNPs on the microbial cells resulted into cell lysis and DNA damage. AgNPs have proved their candidature as a potential antibacterial against the multidrug-resistant microbes. The biological agents for synthesizing AgNPs cover compounds produced naturally in microbes and plants. Reaction parameters under which the AgNPs were being synthesized hold prominent impact on their size, shape, and application. Silver nanoparticle synthesis and their application are summarized and critically discussed in this review.

Green Approach to Overcome the Resistance Pattern of Candida spp. Using Biosynthesized Silver Nanoparticles Fabricated by Penicillium chrysogenum F9

2020 ◽  
Vol 199 (2) ◽  
pp. 800-811 ◽  
Author(s):  
Amal M. Soliman ◽  
Walaa Abdel-Latif ◽  
Iman H. Shehata ◽  
Amr Fouda ◽  
Abdullah M. Abdo ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Penicillium Chrysogenum ◽  
Resistance Pattern ◽  
Candida Spp ◽  
Green Approach

Study on the photocatalytic and antibacterial properties of silver nanoparticles synthesized by a green approach

2019 ◽  
Vol 6 (6) ◽  
pp. 065066 ◽  
Author(s):  
J Luis López-Miranda ◽  
J A Cervantes-Chávez ◽  
A R Hernández-Martínez ◽  
R Pérez ◽  
R Esparza ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Properties ◽  
Green Approach

scholarly journals A Green Approach to Synthesize Silver Nanoparticles in Starch-co-Poly(acrylamide) Hydrogels by Tridax procumbens Leaf Extract and Their Antibacterial Activity

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Siraj Shaik ◽  
Madhusudana Rao Kummara ◽  
Sudhakar Poluru ◽  
Chandrababu Allu ◽  
Jaffer Mohiddin Gooty ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Leaf Extract ◽  
Silver Ions ◽  
Inhibition Zone ◽  
Zone Method ◽  
Green Approach ◽  
Tridax Procumbens ◽  
Poly Acrylamide

A series of starch-co-poly(acrylamide) (starch-co-PAAm) hydrogels were synthesized by employing free radical redox polymerization. A novel green approach, Tridax procumbens (TD) leaf extract, was used for reduction of silver ions (Ag+) into silver nanoparticles in the starch-co-PAAm hydrogel network. The formation of silver nanoparticles was confirmed by UV-visible spectroscopy (UV-Vis), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (X-RD) studies. 22% of weight loss difference between hydrogel and silver nanocomposite hydrogel (SNCH) clearly indicates the formation of silver nanoparticles by TGA. TEM images indicate the successful incorporation of silver nanoparticles ranging from 5 to 10 nm in size and spherical in shape with a narrow size distribution. These developed SNCHs were used to study the antibacterial activity by inhibition zone method against gram-positive and gram-negative bacteria such as Bacillus and Escherichia coli. The results indicated that these SNCHs can be used potentially for biomedical applications.

Combination of grape extract-silver nanoparticles and liposomes: A totally green approach

2017 ◽  
Vol 97 ◽  
pp. 62-69 ◽  
Author(s):  
Ines Castangia ◽  
Francesca Marongiu ◽  
Maria Letizia Manca ◽  
Raffaello Pompei ◽  
Fabrizio Angius ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Grape Extract ◽  
Green Approach

scholarly journals Pharmaceutical aspects of green synthesized silver nanoparticles: A boon to cancer treatment

2020 ◽  
Vol 20 ◽  
Author(s):  
Vijay Mishra ◽  
Pallavi Nayak ◽  
Manvendra Singh ◽  
Murtaza M. Tambuwala ◽  
Alaa A. Aljabali ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Silver Nanoparticles ◽  
Cancer Treatment ◽  
Biomedical Applications ◽  
Drug Loading ◽  
Relevant Literature ◽  
Formulation Development ◽  
Green Approach ◽  
Current Scenario ◽  
Tissue Restoration

Background: Silver nanoparticles (AgNPs) are one of the most investigated nanostructures in recent years, which gives more challenging and promising qualities in different biomedical applications. The AgNPs synthesized by the green approach provide potential healthcare benefits over chemical approaches, including improvement of tissue restoration, drug delivery, diagnosis, environmentally friendly and a boon to cancer treatment. Objective: In the current scenario, the development of safe and effective drug delivery systems is the utmost concern of formulation development scientists as well as clinicians. Methods: Google, Web of Science, PubMed, portals have been searched for potentially relevant literature to get latest developments and updated information related to different aspects of green synthesized AgNPs along with their biomedical applications especially in the treatment of different types of cancers. Results: The present review highlights the latest published research regarding the different green approaches for the synthesis of AgNPs, their characterization techniques as well as various biomedical applications, particularly in cancer treatment. In this context, environment friendly AgNPs are proving themselves as better candidates in terms of size, drug loading and release efficiency, targeting efficiency, minimal drug-associated side effects, pharmacokinetic profiling, and biocompatibility issues. Conclusion: With continuous efforts by multidisciplinary team approaches, nanotechnology-based AgNPs will shed new light on diagnostics and therapeutics in various disease treatments. However, the toxicity issues of AgNPs needs the greatest attention as unanticipated toxic effects must be ruled out for their diversified applications.

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