Study of pH/temperature dual stimuli-responsive nanogels with interpenetrating polymer network structure

2012 ◽  
Vol 61 (7) ◽  
pp. 1144-1150 ◽  
Author(s):  
Xiaoyun Liu ◽  
Hui Guo ◽  
Liusheng Zha
Keyword(s):  
Network Structure ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Stimuli Responsive

Temperature- and pH-tunable plasmonic properties and SERS efficiency of the silver nanoparticles within the dual stimuli-responsive microgels

2014 ◽  
Vol 2 (35) ◽  
pp. 7326-7335 ◽  
Author(s):  
Xiaoyun Liu ◽  
Xiuqin Wang ◽  
Liusheng Zha ◽  
Danli Lin ◽  
Jianmao Yang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Network Structure ◽  
Ph Value ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Stimuli Responsive ◽  
Plasmonic Property

Plasmonic property and SERS efficiency of the silver nanoparticles embedded within the microgels with an interpenetrating polymer network structure can be reversibly tuned by temperature and pH value.

scholarly journals pH/TEMPERATURE DUAL STIMULI RESPONSIVE MICROGELS BASED ON INTERPENETRATING POLYMER NETWORK STRUCTURE

2009 ◽  
Vol 009 (7) ◽  
pp. 638-644 ◽  
Author(s):  
Jun YANG ◽  
Xiao-yun LIU ◽  
Jie YAN ◽  
Lan LI ◽  
Liu-sheng ZHA
Keyword(s):  
Network Structure ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Stimuli Responsive

pH/temperature dual stimuli-responsive microcapsules with interpenetrating polymer network structure

2010 ◽  
Vol 288 (18) ◽  
pp. 1723-1729 ◽  
Author(s):  
Zhimin Xing ◽  
Congling Wang ◽  
Jie Yan ◽  
Li Zhang ◽  
Lan Li ◽  
...  
Keyword(s):  
Network Structure ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Stimuli Responsive

Synthesis and characterization of a novel wound dressing by PVP/ PAANa/chitosan with semi-interpenetrating polymer network structure

e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Ying Wu ◽  
Qing Yang ◽  
Yali Gi ◽  
Yueting Zhang
Keyword(s):  
Network Structure ◽  
Wound Dressing ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Wound Dressings ◽  
Synthesis And Characterization ◽  
Cross Linking ◽  
Mass Ratio ◽  
Scanning Electron

AbstractA novel hydrogel wound dressing with semi-interpenetrating polymer network structure (semi-IPN) was prepared by radical polymerization of acrylic acid with potassium persulfate (K2S2O8) as initiator and N, N'-methylenebisacrylamide (MBA) as cross-linking agent in the presence of chitosan (CTS) and polyvinyl pyrrolidone (PVP). Hydrogels were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). SEM displayed semi- IPN hydrogels' creased surface with some scale-like wrinkles, thus improving the absorptive capability which has been considered as a most important characteristic of wound dressings. It was found that the content of cross-linking agent and the mass ratio of PVP and CTS had much influence on the mechanical properties of the hydrogel, varying from brittle plastics to elastomer due to the different degrees of cross linking. Since tensile strength is partly in inverse ratio to the hydrogel absorbent capability, the article offers an analysis of varying material proportion in order to obtain an optimum properties of the hydrogel wound dressing .

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