Fabrication of antibacterial silver nanoparticle—sodium alginate–chitosan composite films

RSC Advances ◽  
2012 ◽  
Vol 2 (13) ◽  
pp. 5837 ◽  
Author(s):  
Shilpa Sharma ◽  
Pallab Sanpui ◽  
Arun Chattopadhyay ◽  
Siddhartha Sankar Ghosh
2014 ◽  
Vol 46 (7) ◽  
pp. 422-429 ◽  
Author(s):  
Madathil Sunilkumar ◽  
Ambalakkandy Abdul Gafoor ◽  
Abdulaziz Anas ◽  
Areepuravan Parakkal Haseena ◽  
Athiyanathil Sujith

2015 ◽  
Vol 804 ◽  
pp. 179-182 ◽  
Author(s):  
Piyapong Pankaew ◽  
Pattarinee Klumdoung ◽  
Kittisakchai Naemchanthara

Silk sericin/chitosan composite films were successfully prepared for possible future wound dressing applications. To prepare the chitosan, shrimp shells were first washed and finely ground to obtain a fine powder before extracting the chitosan using a chemical reaction method. The sericin was extracted from Thai raw cocoons of Bombyx mori silk worm via boiling and drying. To prepare the silk sericin/chitosan composite films, the silk sericin and chitosan solutions with varying volume ratios were mixed in a magnetic stirrer for 30 minutes. They were then dropped on to a plastic mold. The sample was dried at a temperature of 50 °C. The prepared composite films were characterized using UV-VIS spectroscopy, Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). The results from our studies could provide a method for future composite film development.


Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1476 ◽  
Author(s):  
Ji ◽  
Zhang ◽  
Zhang ◽  
Quan ◽  
Huang ◽  
...  

Highly luminescent silicon quantum dots (SiQDs) were prepared via one-pot hydrothermal route. Furthermore, the optimal synthetic conditions, dependence of the emission spectrum on the excitation wavelength and fluorescent stability of SiQDs were investigated by fluorescence spectroscopy. SiQDs exhibited bright blue fluorescence, and photoluminescence (PL) lifetime is 10.8 ns when excited at 325 nm. The small-sized SiQDs (~3.3 nm) possessed uniform particle size, crystal lattice spacing of 0.31 nm and silicon (111), (220) crystal planes. Luminescent SiQDs/sodium alginate (SA)-carboxymethylcellulose sodium (CMC) nanocomposite bio-polymer films were successfully fabricated by incorporating SiQDs into the SA-CMC matrix. Meanwhile, SiQDs not only impart strong fluorescence to the polymer, but also make the composite films have favorable toughness.


2020 ◽  
Vol 245 ◽  
pp. 116556 ◽  
Author(s):  
May Thu Soe ◽  
Thaned Pongjanyakul ◽  
Ekapol Limpongsa ◽  
Napaphak Jaipakdee

RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22645-22655
Author(s):  
Akshay S. Kulkarni ◽  
Ashok M. Sajjan ◽  
Ashwini M ◽  
Nagaraj R. Banapurmath ◽  
Narasimha H. Ayachit ◽  
...  

Polystyrene-4-sulfonic acid co maleic acid sodium salt (PSSAMA_Na) capped silver nanoparticle (Ag_Np) embedded sodium alginate (Na-Alg) nanocomposite membranes have been developed to improve the pervaporation (PV) dehydration of bioethanol.


2019 ◽  
Vol 97 ◽  
pp. 105208 ◽  
Author(s):  
Hejun Wu ◽  
Yanlin Lei ◽  
Junyu Lu ◽  
Rui Zhu ◽  
Di Xiao ◽  
...  

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