Characterization of chitin-glucan complex from Tremella fuciformis fermentation residue and evaluation of its antibacterial performance

Author(s):  
Aijun Chen ◽  
Fei Pan ◽  
Tao Zhang ◽  
Caiyuan Yu ◽  
Yu Xiao ◽  
...  
2019 ◽  
Vol 6 (5) ◽  
pp. 182135 ◽  
Author(s):  
Zakia Kanwal ◽  
Muhammad Akram Raza ◽  
Saira Riaz ◽  
Saher Manzoor ◽  
Asima Tayyeb ◽  
...  

Magnetic cores loaded with metallic nanoparticles can be promising nano-carriers for successful drug delivery at infectious sites. We report fabrication, characteristic analysis and in vitro antibacterial performance of nanocomposites comprising cobalt cores (Co-cores) functionalized with a varied concentration of silver nanoparticles (AgNPs). A two-step polyol process synchronized with the transmetalation reduction method was used. Co-cores were synthesized with cobalt acetate, and decoration of AgNPs was carried out with silver acetate. The density of AgNPs was varied by changing the amount of silver content as 0.01, 0.1 and 0.2 g in the synthesis solution. Both AgNPs and Co-cores were spherical having a size range of 30–80 nm and 200 nm to more than 1 µm, respectively, as determined by scanning electron microscopy. The metallic nature and face-centred cubic crystalline phase of prepared nanocomposites were confirmed by X-ray diffraction. Biocompatibility analysis confirmed high cell viability of MCF7 at low concentrations of tested particles. The antibacterial performance of nanocomposites (Co@AgNPs) against Escherichia coli and Bacillus subtilis was found to be AgNPs density-dependent, and nanocomposites with the highest AgNPs density exhibited the maximum bactericidal efficacy. We therefore propose that Co@AgNPs as effective drug containers for various biomedical applications.


Mycoscience ◽  
2020 ◽  
Vol 61 (1) ◽  
pp. 1-8
Author(s):  
Dongmei Liu ◽  
Hanyu Zhu ◽  
Dwi Pujiana ◽  
Liesheng Zheng ◽  
Liguo Chen ◽  
...  

2011 ◽  
Vol 257 (22) ◽  
pp. 9397-9402 ◽  
Author(s):  
Haiqing Xia ◽  
Bin Cui ◽  
Junhong Zhou ◽  
Lulu Zhang ◽  
Ji Zhang ◽  
...  

2005 ◽  
Vol 475-479 ◽  
pp. 1177-1180 ◽  
Author(s):  
Yun Han Ling ◽  
Xing Jun Jiang ◽  
Xin De Bai

Antibacterial titanate whiskers were synthesized by calcination of titanium dioxide with potassium carbonate, following by ion-exchanged and immobilized with Ag+ and Cu2+. The pretreatment conditions for whiskers synthesis were investigated; the microstructures of as-prepared whiskers were characterized by XRD and SEM. The antibacterial performance of cation-doped titanate whiskers was tested and evaluated by Escherichia Coli. and staphylococcus aureus.


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