Acrylic acid–methyl methacrylate copolymer for oral prolonged drug release

2010 ◽  
Vol 21 (9) ◽  
pp. 2583-2592 ◽  
Author(s):  
Saurabh Vijay ◽  
O. P. Sati ◽  
Dipak K. Majumdar
2019 ◽  
Vol 16 (6) ◽  
pp. 548-564
Author(s):  
Shabina Mahmood ◽  
Manal Ali Buabeid ◽  
Kaleem Ullah ◽  
Ghulam Murtaza ◽  
Abdul Mannan ◽  
...  

Objective: The aim of the present study was to design an efficient delivery system with an anticipated swelling and drug release properties for a prolonged drug release as well as to target colon for various hydrophilic drugs. Methods: For this purpose, the pH-responsive hydrogel comprising a combination of Eudragit and acrylic acid was formed. The hydrogels were characterized for spectral (FTIR), thermal (TGA/DSC), structural (XRD), and morphological (SEM) investigations. Oral tolerability was assessed in rabbits for biocompatibility and oral use of the prepared hydrogels. Results: The results showed that an increased incorporation of Eudragit and cross-linking agent retorted the swelling, drug loading, and drug release properties at both acid (pH 1.2) and basic pH (pH 6.8 and 7.4) , while acrylic acid presented the inverse results. The oral tolerability and toxicity studies depicted that the developed hydrogels were safe up to 3800 mg/kg body weight and caused no hematological or histopathological changes when compared with the control group. Conclusion: Therefore, the newly developed formulations presented adequate swelling, drug loading, release behavior, and biocompatibility properties and thus can be used as a promising tool for the colonic delivery of various hydrophilic drugs.


2000 ◽  
Vol 37 (4) ◽  
pp. 307-321 ◽  
Author(s):  
Issa Katime ◽  
Elena Díaz de Apodaca ◽  
Eduardo Mendizábal ◽  
Jorge E. Puig

2012 ◽  
Vol 557-559 ◽  
pp. 968-972 ◽  
Author(s):  
Jie Zhu ◽  
Weng Fa Xiao ◽  
Li Tao Dong ◽  
Fei Teng

The copolymer had been synthesized by using N-tert-octylacrylamide/Acrylic acid/Methyl methacrylate/Butylaminoethyl Methacrylate/Hydroxypropyl Methacrylate as monomers.By adjusting monomers ratio,N-tert-octylacrylamide or methyl methacrylate,futher study the influence on the stiffness of the copolymer and the relationship beween monomers ratio and the stiffness.


2013 ◽  
pp. 2835 ◽  
Author(s):  
Ki-Choon Choi ◽  
Young-IL Jeong ◽  
Da Hye Kim ◽  
Kyungdong Lee ◽  
Gyuntaek Lim

2011 ◽  
Vol 396-398 ◽  
pp. 1217-1221
Author(s):  
Jie Zhu ◽  
Weng Fa Xiao ◽  
Li Tao Dong ◽  
Fei Teng

the copolymer which as a hair fixing compositions was synthesized by using octyl-acrylamide,acrylicacid,methylmethacrylate,butylaminoethyl-methacrylate,hydroxypropyl methacrylate as monomers, and ammonium persulfate as initiator.The copolymer was charactered by IR .The tensile test and the elasticlty test were used to character the physical properties of the films of the copolymer which showed that the film had revealed excellent features such as sufficient strength and elasticity.


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