Drug release behaviors of a pH sensitive semi-interpenetrating polymer network hydrogel composed of poly(vinyl alcohol) and star poly[2-(dimethylamino)ethyl methacrylate]

2011 ◽  
Vol 416 (1) ◽  
pp. 104-109 ◽  
Author(s):  
Wei Wu ◽  
Jing Liu ◽  
Shuqin Cao ◽  
Hong Tan ◽  
Jianshu Li ◽  
...  
Keyword(s):  
Drug Release ◽  
Vinyl Alcohol ◽  
Polymer Network ◽  
Ph Sensitive ◽  
Interpenetrating Polymer Network ◽  
Poly Vinyl Alcohol ◽  
Ethyl Methacrylate

scholarly journals ENZYMATICALLY SYNTHESIZED pH-RESPONSIVE IPN FOR IN-SITU RELEASE OF PANTOPRAZOLE SODIUM

2019 ◽  
pp. 98-103
Author(s):  
Saruchi Sharma ◽  
VANEET KUMAR
Keyword(s):  
Drug Release ◽  
Polymer Network ◽  
Lateral Diffusion ◽  
Ph Sensitive ◽  
Interpenetrating Polymer Network ◽  
Release Behavior ◽  
Ph Responsive ◽  
Gum Tragacanth ◽  
Swelling Capacity

Objective: This study involves the synthesis of Gum tragacanth (gt) based interpenetrating polymer network (ipn) and its utilization for sustained release of anti-ulcerative drug i.e. pantoprazole sodium. Methods: IPN was synthesized from Gum tragacanth, polyacrylic acid (gt-cl-paa) hydrogel. gt-cl-paa was kept in distilled water. Further, acryamide (aam) and methylmethacrylate (mma) was added and then kept for overnight. Later on, lipase and glutaraldehyde were added. Homopolymers and the unreacted monomers were removed using acetone. Synthesized IPN was dried at 50 °C for further study. Synthesized ipn was swelled in water and the drug was added to it. The drug was entrapped in the pores of the synthesized ipn and then drug release behavior was studied using uv-vis spectrophotometer. Results: Gt, paa and mma based crosslinked IPN were synthesized using lipase-glutaraldehyde as initiator-crosslinker system. The synthesized IPN was pH sensitive and possessed the desired swelling capacity required for the controlled and systematic liberation of pantoprazole sodium at 37 °C. The kinetic of drug release was studied and found that lateral diffusion (DL) of drug was higher as compared to the initial diffusion (DI). The prepared IPN can be used as prospective carrier for prolonged drug delivery. Conclusion: A novel pH sensitive and colon targeted IPN was synthesized. It acts as an effective device for the controlled release of drug pantoprazole sodium.

Electric stimuli responses to poly(vinyl alcohol)/chitosan interpenetrating polymer network hydrogel in NaCl solutions

2002 ◽  
Vol 86 (9) ◽  
pp. 2285-2289 ◽  
Author(s):  
Seon Jeong Kim ◽  
Sang Jun Park ◽  
In Young Kim ◽  
Mi-Seon Shin ◽  
Sun I. Kim
Keyword(s):  
Vinyl Alcohol ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Poly Vinyl Alcohol

Water behavior of poly(vinyl alcohol)/poly(vinylpyrrolidone) interpenetrating polymer network hydrogels

2003 ◽  
Vol 89 (1) ◽  
pp. 24-27 ◽  
Author(s):  
Seon Jeong Kim ◽  
Sang Jun Park ◽  
Kay Hyeok An ◽  
Nam Gyun Kim ◽  
Sun I. Kim
Keyword(s):  
Vinyl Alcohol ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Poly Vinyl Alcohol ◽  
Water Behavior
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