scholarly journals In vitro release of chlorhexidine from UV-cured PEGDA drug delivery scaffolds

2021 ◽  
Vol 7 (2) ◽  
pp. 519-522
Author(s):  
Natalia Rekowska ◽  
Alexander Riess ◽  
Robert Mau ◽  
Thomas Eickner ◽  
Hermann Seitz ◽  
...  

Abstract Drug delivery systems (DDS) are suitable for controlled local drug release in order to ensure safety and effectiveness of medical treatment. The choice and characterization of biomaterials that can be used as a DDS is a challenging step in the administration of drugs. Novel 3D printing photopolymerization-based techniques create the possibility for designing individual, patient-tailored DDS. Poly(ethylene glycol) diacrylate`s (PEGDA`s) chemical and biological properties make it a suitable photopolymerisable resin for the creation of DDS. This study describes the in vitro release of the antiseptic drug chlorhexidine (CHX) from UV-cured PEGDA and its copolymers (butanediol diacrylate, pentaerythritol triacrylate and pentaerythritol tetraacrylate) samples. A substantial decrease in CHX release with increasing concentration of the copolymers in comparison to pure PEGDA was obtained only for butanediol diacrylate. For pentaerythritol triacrylate and pentaerythritol tetraacrylate only a tendency of decreased CHX release with increasing concentration was detected. Therefore, release profiles of the low molecular drug CHX from PEGDA samples could be modified by the addition of copolymers with a different number of acrylate groups and PEGDA can be considered as a promising candidate for the preparation of novel DDS.

Author(s):  
Muhammad Wahab Amjad ◽  
Maria Abdul Ghafoor Raja

The purpose of this study was to develop liposome-enriched Ketoprofen liposomal hydrogels and carry out in vitro release profile experiment. The aim was to achieve sustained topical drug delivery for extended time interval from liposomal gels. Phosphatidylcholine, Cholesterol and Ketoprofen were dissolved in chloroform/methanol (2:1, v/v) mixture and subsequently transferred to a flask attached to rotavapor. The liposomes were assessed for particle size and percent drug entrapment. F-7 and F-8 batches were found to be optimized batches having optimum sizes, drug entrapment efficiencies and cumulative drug releases. F-8 batch was further evaluated for stability. The results show that the prepared liposomes of Ketoprofen might turn out to be potential candidates for effective and safe sustained drug delivery thereby resulting in the reduction of dosing frequency.


e-Polymers ◽  
2007 ◽  
Vol 7 (1) ◽  
Author(s):  
M. Galehassadi ◽  
M. Mahkam ◽  
F. Hosseinzadeh

AbstractNetwork polymers containing silyl groups were synthesized. Silyl derivatives of 2-hydroxyethylmethacrylate (HEMA), and methacrylic acid (MAA) were copolymerized with 1,2-bis(vinylphenyl)ethane (BVPE) and divinylbenzene (DVB) as cross-linking agents by radical polymerization using α,α′-azobis (isobutyronitrile) (AIBN) as initiator to produce network polymers. Then mesalasine (MZ) were loaded to these network polymers, and amount of drug entrapped was determined. In vitro release studies showed that drug delivery property was modified and showed considerable difference in swelling at pH 1 and 7.4. Incorporation of silyl groups in new macromolecule system modified network polymers for drug delivery. Monomers and polymers were characterized by spectroscopic methods.


2002 ◽  
Vol 234 (1-2) ◽  
pp. 195-203 ◽  
Author(s):  
Hak Soo Choi ◽  
Sun-Ah Seo ◽  
Gilson Khang ◽  
John M. Rhee ◽  
Hai Bang Lee

2009 ◽  
Vol 25 (2) ◽  
pp. 161-177 ◽  
Author(s):  
Bhavesh D. Kevadiya ◽  
Ghanshyam V. Joshi ◽  
Hasmukh A. Patel ◽  
Pravin G. Ingole ◽  
Haresh M. Mody ◽  
...  

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