Approximate Corona Phase Hamiltonian for Individual Cylindrical Nanoparticle–Polymer Interactions

2021 ◽  
Author(s):  
Daniel James Lundberg ◽  
Michael S. Strano
Keyword(s):  
Polymer Interactions

Preparation and in vitro Evaluation of Bioadhesive Microparticulate System

1970 ◽  
Vol 1 (3) ◽  
pp. 257-266
Author(s):  
Nagda C. D. ◽  
Chotai N. P. ◽  
Patel S. B. ◽  
Soni T. J ◽  
Patel U. L
Keyword(s):  
Drug Loading ◽  
In Vitro Release ◽  
Phenyl Acetic Acid ◽  
Solvent Evaporation Method ◽  
Elimination Half ◽  
Release Studies ◽  
Differential Scanning Colorimetry ◽  
Polymer Interactions ◽  
Vitro Release

Aceclofenac (ACE) is NSAIDs of a phenyl acetic acid class. It is indicated in arthritis and osteoarthritis, rheumatoid arthritis, ankylosing spondylitis. It has short elimination half life of 4 hours. The objective of the study is to design, characterize and evaluate bioadhesive microspheres of ACE employing carbopol (CP) as bioadhesive polymer. Bioadhesive microspheres of ACE were prepared by solvent evaporation method. The prepared microspheres were free flowing and spherical in shape and characterized for drug loading, mucoadhesion test, infrared spectroscopy (IR), differential scanning colorimetry (DSC) and scanning electron microscopy (SEM). The in-vitro release studies were performed using pH 6.8 phosphate buffer. The drug loaded microspheres in a ratio of 1:5 showed 47% of drug entrapment; percentage mucoadhesion was 81% and 89% release in 10 h. The infrared spectra and DSC showed stable character of aceclofenac in the drug loaded microspheres and revealed the absence of drug-polymer interactions. SEM studies showed that the microspheres are spherical and porous in nature. The in vitro release profiles from microspheres of different polymer-drug ratios followed Higuchi model.

The electrospinning behavior of poly(vinyl alcohol) in DMSO–water binary solvent mixtures

RSC Advances ◽  
2016 ◽  
Vol 6 (105) ◽  
pp. 102947-102955 ◽  
Author(s):  
Deepika Gupta ◽  
Manjeet Jassal ◽  
Ashwini K. Agrawal
Keyword(s):  
Ternary System ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Binary Solvent ◽  
Solvent Mixtures ◽  
Binary Solvent Mixtures ◽  
Polymer Interactions ◽  
Solvent Solvent

The fiber diameters obtained from PVA–DMSO–water ternary system are the result of the interplay between the solvent–solvent and solvent–polymer interactions.

Lattice Fluid Theory and Inverse Gas Chromatography in the Analysis of Polymer-Polymer Interactions

1995 ◽  
Vol 28 (21) ◽  
pp. 7188-7195 ◽  
Author(s):  
A. Etxeberria ◽  
M. Iriarte ◽  
C. Uriarte ◽  
J. J. Iruin
Keyword(s):  
Gas Chromatography ◽  
Inverse Gas Chromatography ◽  
Lattice Fluid ◽  
Fluid Theory ◽  
Polymer Interactions

Infrared cell for supercritical fluid–polymer interactions

1996 ◽  
Vol 67 (4) ◽  
pp. 1586-1589 ◽  
Author(s):  
Sergei G. Kazarian ◽  
Michael F. Vincent ◽  
Charles A. Eckert
Keyword(s):  
Supercritical Fluid ◽  
Polymer Interactions
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