scholarly journals Green synthesized silver nanoparticles loaded PVA/Starch cryogel scaffolds with antibacterial properties

2019 ◽  
Vol 13 (1) ◽  
pp. 1-6
Author(s):  
Didem Demir ◽  
Seda Ceylan ◽  
Gülşah Gül ◽  
Zeynep İyigündoğdu ◽  
Nimet Bölgen
Keyword(s):  
Tissue Engineering ◽  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Composite Scaffold ◽  
Antibacterial Properties ◽  
Antimicrobial Properties ◽  
Infection Site ◽  
Engineering Applications ◽  
Aloe Barbadensis ◽  
Green Synthesized Silver Nanoparticles

In this study, Polyvinyl alcohol/Starch (PVA/Starch) cryogel scaffolds were combined with antibacterial silver nanoparticles (AgNPs), and the antimicrobial properties of composite scaffolds were determined for potential in tissue engineering applications. The porous PVA/Starch scaffolds were prepared by cryogelation technique. The nanoparticles were prepared by green synthesis from Aloe barbadensis leaf extract and characterized. The antibacterial, antifungal and antiyeast properties of AgNPs and AgNPs loaded PVA/Starch cryogel scaffolds were investigated. The highest antimicrobial activity of composite scaffold was found against Pseudomonas aeruginosa. Based on our studies, the results indicate that biodegradable, biocompatible and antimicrobial AgNPs loaded PVA/Starch scaffolds have potential to be used at an infection site in tissue engineering applications.

Pharmacological and Larvicidal Potential of Green Synthesized Silver Nanoparticles Using Carmona retusa (Vahl) Masam Leaf Extract

2018 ◽  
Vol 29 (6) ◽  
pp. 1243-1253 ◽  
Author(s):  
Ramanathan Rajkumar ◽  
Muthugounder Subramanian Shivakumar ◽  
Sengottayan Senthil Nathan ◽  
Kuppusamy Selvam
Keyword(s):  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Green Synthesized Silver Nanoparticles

scholarly journals Microwave-Assisted Green Synthesis of Silver Nanoparticles Using Juglans regia Leaf Extract and Evaluation of Their Physico-Chemical and Antibacterial Properties

Antibiotics ◽  
2018 ◽  
Vol 7 (3) ◽  
pp. 68 ◽  
Author(s):  
Mahsa Eshghi ◽  
Hamideh Vaghari ◽  
Yahya Najian ◽  
Mohammad Najian ◽  
Hoda Jafarizadeh-Malmiri ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Juglans Regia ◽  
Antibacterial Properties ◽  
Infrared Analysis ◽  
Ag Nps ◽  
Stabilizing Agents ◽  
Agno3 Solution ◽  
Transmission Electron ◽  
Vis Spectroscopy

Silver nanoparticles (Ag NPs) were synthesized using Juglans regia (J. regia) leaf extract, as both reducing and stabilizing agents through microwave irradiation method. The effects of a 1% (w/v) amount of leaf extract (0.1–0.9 mL) and an amount of 1 mM AgNO3 solution (15–25 mL) on the broad emission peak (λmax) and concentration of the synthesized Ag NPs solution were investigated using response surface methodology (RSM). Fourier transform infrared analysis indicated the main functional groups existing in the J. regia leaf extract. Dynamic light scattering, UV-Vis spectroscopy and transmission electron microscopy were used to characterize the synthesized Ag NPs. Fabricated Ag NPs with the mean particle size and polydispersity index and maximum concentration and zeta potential of 168 nm, 0.419, 135.16 ppm and −15.6 mV, respectively, were obtained using 0.1 mL of J. regia leaf extract and 15 mL of AgNO3. The antibacterial activity of the fabricated Ag NPs was assessed against both Gram negative (Escherichia coli) and positive (Staphylococcus aureus) bacteria and was found to possess high bactericidal effects.

scholarly journals 3D Printed Polycaprolactone/Gelatin/Bacterial Cellulose/Hydroxyapatite Composite Scaffold for Bone Tissue Engineering

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1962 ◽  
Author(s):  
Abdullah M. Cakmak ◽  
Semra Unal ◽  
Ali Sahin ◽  
Faik N. Oktar ◽  
Mustafa Sengor ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
3D Printing ◽  
Bone Tissue Engineering ◽  
Bacterial Cellulose ◽  
Bone Tissue ◽  
Composite Scaffold ◽  
Bone Tissue Regeneration ◽  
Engineering Applications ◽  
Bioactive Materials ◽  
Degradation Rates

Three-dimensional (3D) printing application is a promising method for bone tissue engineering. For enhanced bone tissue regeneration, it is essential to have printable composite materials with appealing properties such as construct porous, mechanical strength, thermal properties, controlled degradation rates, and the presence of bioactive materials. In this study, polycaprolactone (PCL), gelatin (GEL), bacterial cellulose (BC), and different hydroxyapatite (HA) concentrations were used to fabricate a novel PCL/GEL/BC/HA composite scaffold using 3D printing method for bone tissue engineering applications. Pore structure, mechanical, thermal, and chemical analyses were evaluated. 3D scaffolds with an ideal pore size (~300 µm) for use in bone tissue engineering were generated. The addition of both bacterial cellulose (BC) and hydroxyapatite (HA) into PCL/GEL scaffold increased cell proliferation and attachment. PCL/GEL/BC/HA composite scaffolds provide a potential for bone tissue engineering applications.

Enhancement of antibacterial properties of silver nanoparticles–ceftriaxone conjugate through Mukia maderaspatana leaf extract mediated synthesis

2015 ◽  
Vol 121 ◽  
pp. 135-141 ◽  
Author(s):  
Muthukumar Harshiny ◽  
Manickam Matheswaran ◽  
Gangasalam Arthanareeswaran ◽  
Shanmugam Kumaran ◽  
Shanmuganathan Rajasree
Keyword(s):  
Silver Nanoparticles ◽  
Leaf Extract ◽  
Antibacterial Properties
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