- Poly(anhydride-ester) and poly(N-vinyl-2-pyrrolidone) blends: salicylic acid-releasing blends with hydrogel-like properties that reduce inflammation.
Poly(anhydride-ester) and poly(N-vinyl-2-pyrrolidone) blends: salicylic acid-releasing blends with hydrogel-like properties that reduce inflammation.
Macromolecular bioscience (2014-10-22)
Michelle A Ouimet, Renata Fogaça, Sabrina S Snyder, Sameer Sathaye, Luiz H Catalani, Darrin J Pochan, Kathryn E Uhrich
PMID25333420
ABSTRACT
Polymers such as poly(N-vinyl-2-pyrrolidone) (PVP) have been used to prepare hydrogels for wound dressing applications but are not inherently bioactive. For enhanced healing, PVP was blended with salicylic acid-based poly(anhydride-esters) (SAPAE) and shown to exhibit hydrogel properties upon swelling. In vitro release studies demonstrated that the chemically incorporated drug (SA) was released from the polymer blends over 3-4 d in contrast to 3 h, and that blends of higher PVP content displayed greater swelling values and faster SA release. The polymer blends significantly the inflammatory cytokine, TNF-α, in vitro without negative effects.
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Sigma-Aldrich
Salicylic acid, meets analytical specification of Ph. Eur., BP, USP, 99.5-100.5% (calc. to the dried substance)
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Supelco
Salicylic acid, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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Salicylic acid, European Pharmacopoeia (EP) Reference Standard
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Supelco
Salicylic acid, 1.0 mg/mL in acetonitrile, ampule of 1 mL, certified reference material, Cerilliant®
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Chloroform, contains ethanol as stabilizer, meets analytical specification of BP, 99-99.4% (GC)
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Sigma-Aldrich
Chloroform, ACS spectrophotometric grade, ≥99.8%, contains 0.5-1.0% ethanol as stabilizer
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