In situ reduction of silver nanoparticles on hybrid polydopamine–copper phosphate nanoflowers with enhanced antimicrobial activity

2017 ◽  
Vol 5 (27) ◽  
pp. 5311-5317 ◽  
Author(s):  
Mei Zhang ◽  
Raoul Peltier ◽  
Manman Zhang ◽  
Haojian Lu ◽  
Haidong Bian ◽  
...  

Polydopamine hybrid copper phosphate nanoflowers are synthesized using a biomineralization process. The polydopamine on the nanoflowers can reduce Ag+in situ.

2019 ◽  
Vol 177 ◽  
pp. 370-376 ◽  
Author(s):  
Man Li ◽  
Xingxing Jiang ◽  
Dan Wang ◽  
Zeyu Xu ◽  
Minghui Yang

Cellulose ◽  
2014 ◽  
Vol 21 (6) ◽  
pp. 4557-4567 ◽  
Author(s):  
Jin Feng ◽  
Qingshan Shi ◽  
Wenru Li ◽  
Xiulin Shu ◽  
Aimei Chen ◽  
...  

2017 ◽  
Vol 396 ◽  
pp. 461-470 ◽  
Author(s):  
S. Ferraris ◽  
M. Miola ◽  
A. Cochis ◽  
B. Azzimonti ◽  
L. Rimondini ◽  
...  

2011 ◽  
Vol 415-417 ◽  
pp. 487-490 ◽  
Author(s):  
Jia Li Ding ◽  
Wen Wu

Green synthesis of silver nanoparticles (AgNPs) using the silk sericin (SS) solution by in situ reduction at room temperature is reported. The effect of pH on the reduction reaction is studied by UV-Vis spectroscopy. The structure of the sericin-based silver nanoparticles is characterized by TEM. According to the TEM images, the average size of the silver nanoparticles is about 16 nm. The silver nanoparticles are highly dispersed and stable in silk sericin solution for monthes.


2012 ◽  
Vol 468-471 ◽  
pp. 1974-1977
Author(s):  
Wen Wu ◽  
Dong Sheng Wang

Semi-IPN hydrogels in which silk sericin (SS) chains were physically dispersed throughout dextran (Dex) gel networks were synthesized. Highly stable distributed silver nanoparticles have been prepared using these semi-IPN hydrogels as a carrier via in situ reduction of silver nitrate without the addition of any reducing agent. The resultant semi-IPN hydrogel-silver nanocomposites were characterized by X-ray diffraction (XRD). And the swelling behavior of the hydrogles was also studied.


2021 ◽  
Vol 21 (10) ◽  
pp. 5120-5130
Author(s):  
Hui Long ◽  
Wei-Cong Kuang ◽  
Shi-Liang Wang ◽  
Jing-Xian Zhang ◽  
Lang-Huan Huang ◽  
...  

Poly(cyclotriphosphazene-co-4,4’-diaminodiphenyl ether) (PPO) microspheres were prepared via a precipitation polymerization method, using hexachlorocyclotriphosphazene (HCCP) and 4,4’-diaminodiphenyl ether (ODA) as monomers. Silver-loaded PPO (PPOA) microspheres were generated by the in situ loading of silver nanoparticles onto the surface by Ag+ reduction. Our results showed that PPOA microspheres were successfully prepared with a relatively uniform distribution of silver nanoparticles on microsphere surfaces. PPOA microspheres had good thermal stability and excellent antibacterial activity towards Escherichia coli and Staphylococcus aureus. Furthermore, PPOA microspheres exhibited lower cytotoxicity when compared to citrate-modified silver nanoparticles (c-Ag), and good sustained release properties. Our data indicated that polyphosphazene-based PPOA microspheres are promising antibacterial agents in the biological materials field.


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