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Synthesis, characterization and optical properties of organic nanoparticles of piroxicam anti-inflammatory drug

Paper ID Volume ID Publish Year Pages File Format Full-Text
26986 43991 2010 6 PDF Available
Title
Synthesis, characterization and optical properties of organic nanoparticles of piroxicam anti-inflammatory drug
Abstract

We report the synthesis, characterization and optical properties of “anionic” drug-based organic nanoparticles. Aqueous-phase ion association between piroxicam (PX) anion and lipophilic phosphazenium cation such as tetrakis[tris(dimethylamino)phosphoranylideneamino]phosphonium (PHS), in the presence of polyvinylpyrrolidone (PVP), produces PX nanoparticles of 200–400 nm in diameter. The stability of the nanoparticles is dependent on the molar ratio (ρ) of the loaded cation to the drug anion, giving an appropriate synthetic condition of ρ = 1.5. The PX nanoparticles exhibit an enhanced emission with a bathochromic shift compared to that of the PX monomer in water, but their absorption properties do not change. The emission enhancement is due to the effect of immobilization of PX in the hydrophobic solid-state matrices.

Keywords
Piroxicam organic nanoparticles; Ion association; Optical properties; Emission enhancement; Drug
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Synthesis, characterization and optical properties of organic nanoparticles of piroxicam anti-inflammatory drug
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 212, Issues 2–3, 20 May 2010, Pages 170–175
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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