Poly(Lactic Acid)-co-Aspartic Acid Copolymers: Possible Utilization in Drug Delivery Systems

The synthesis and characterization of poly(lactic acid)-co-aspartic acid copolymers (PLA-co-Asp) were presented. Subsequently, the synthesized PLA-co-Asp copolymers were tested as biodegradable carriers in drug delivery systems. PLA-co-Asp copolymers were synthesized by solution polycondensation pro...

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Published inJournal of polymers and the environment Vol. 21; no. 4; pp. 1064 - 1071
Main Authors Tudorachi, Nita, Lipsa, Rodica, Vasile, Cornelia, Mustata, Fanica
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.12.2013
Springer
Springer Nature B.V
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Abstract The synthesis and characterization of poly(lactic acid)-co-aspartic acid copolymers (PLA-co-Asp) were presented. Subsequently, the synthesized PLA-co-Asp copolymers were tested as biodegradable carriers in drug delivery systems. PLA-co-Asp copolymers were synthesized by solution polycondensation procedure, using different molar ratios PLA/ l -aspartic acid (2.33/1, 1/1, 1/2.33), manganese acetate and phosphoric acid as catalysts and N , N ′-dimethyl formamide (DMF)/toluene as solvent mixture. The copolymers were characterized by FT-IR and 1 H-NMR spectroscopy, gel permeation chromatography (GPC), DSC and TG-DTG analyses. Diclofenac sodium, a non steroidal anti-inflammatory drug was subsequently loaded into PLA-co-Asp copolymers. The in vitro drug release experiments were done by dialysis of the copolymer/drug systems, in phosphate buffer solution (pH = 7.4, at 37 °C) and monitored by UV spectroscopy.
AbstractList The synthesis and characterization of poly(lactic acid)-co-aspartic acid copolymers (PLA-co-Asp) were presented. Subsequently, the synthesized PLA-co-Asp copolymers were tested as biodegradable carriers in drug delivery systems. PLA-co-Asp copolymers were synthesized by solution polycondensation procedure, using different molar ratios PLA/ l -aspartic acid (2.33/1, 1/1, 1/2.33), manganese acetate and phosphoric acid as catalysts and N , N ′-dimethyl formamide (DMF)/toluene as solvent mixture. The copolymers were characterized by FT-IR and 1 H-NMR spectroscopy, gel permeation chromatography (GPC), DSC and TG-DTG analyses. Diclofenac sodium, a non steroidal anti-inflammatory drug was subsequently loaded into PLA-co-Asp copolymers. The in vitro drug release experiments were done by dialysis of the copolymer/drug systems, in phosphate buffer solution (pH = 7.4, at 37 °C) and monitored by UV spectroscopy.
The synthesis and characterization of poly(lactic acid)-co-aspartic acid copolymers (PLA-co-Asp) were presented. Subsequently, the synthesized PLA-co-Asp copolymers were tested as biodegradable carriers in drug delivery systems. PLA-co-Asp copolymers were synthesized by solution polycondensation procedure, using different molar ratios PLA/l-aspartic acid (2.33/1, 1/1, 1/2.33), manganese acetate and phosphoric acid as catalysts and N,N'-dimethyl formamide (DMF)/toluene as solvent mixture. The copolymers were characterized by FT-IR and ^sup 1^H-NMR spectroscopy, gel permeation chromatography (GPC), DSC and TG-DTG analyses. Diclofenac sodium, a non steroidal anti-inflammatory drug was subsequently loaded into PLA-co-Asp copolymers. The in vitro drug release experiments were done by dialysis of the copolymer/drug systems, in phosphate buffer solution (pH = 7.4, at 37 °C) and monitored by UV spectroscopy.[PUBLICATION ABSTRACT]
The synthesis and characterization of poly(lactic acid)-co-aspartic acid copolymers (PLA-co-Asp) were presented. Subsequently, the synthesized PLA-co-Asp copolymers were tested as biodegradable carriers in drug delivery systems. PLA-co-Asp copolymers were synthesized by solution polycondensation procedure, using different molar ratios PLA/l-aspartic acid (2.33/1, 1/1, 1/2.33), manganese acetate and phosphoric acid as catalysts and N,N'-dimethyl formamide (DMF)/toluene as solvent mixture. The copolymers were characterized by FT-IR and super(1)H-NMR spectroscopy, gel permeation chromatography (GPC), DSC and TG-DTG analyses. Diclofenac sodium, a non steroidal anti-inflammatory drug was subsequently loaded into PLA-co-Asp copolymers. The in vitro drug release experiments were done by dialysis of the copolymer/drug systems, in phosphate buffer solution (pH = 7.4, at 37 degree C) and monitored by UV spectroscopy.
Author Vasile, Cornelia
Mustata, Fanica
Tudorachi, Nita
Lipsa, Rodica
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Issue 4
Keywords Diclofenac sodium
Drug delivery systems
Poly(lactic acid)-co-aspartic acid
Biodegradable copolymers
Solution polycondensation
Molecular structure
Control release polymer
Lactic acid copolymer
Drug carrier
Experimental study
In vitro
Diclofenac
Non steroidal antiinflammatory agent
Monodispersed polymer
Cyclopolymer
Preparation
Diblock copolymer
Microparticle
Aspartic acid
Imide copolymer
Kinetics
Release
Aliphatic copolymer
Amphiphilic polymer
Language English
License CC BY 4.0
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  publication-title: Biomacromolecules
  doi: 10.1021/bm1006773
  contributor:
    fullname: S Bocchini
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Snippet The synthesis and characterization of poly(lactic acid)-co-aspartic acid copolymers (PLA-co-Asp) were presented. Subsequently, the synthesized PLA-co-Asp...
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SubjectTerms Acetates
Acids
Anti-inflammatory agents
Applied sciences
Biodegradation
Biological and medical sciences
Chemistry
Chemistry and Materials Science
Copolymers
Dialysis
Diclofenac
Drug delivery systems
Drugs
Environmental Chemistry
Environmental Engineering/Biotechnology
Exact sciences and technology
General pharmacology
Industrial Chemistry/Chemical Engineering
Manganese
Materials Science
Medical sciences
Organic polymers
Original Paper
Pharmaceutical technology. Pharmaceutical industry
Pharmacology. Drug treatments
Phosphates
Physicochemistry of polymers
Polymer Sciences
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
Sodium
Spectroscopy
Toluene
Ultraviolet spectroscopy
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  priority: 102
  providerName: Springer Nature
Title Poly(Lactic Acid)-co-Aspartic Acid Copolymers: Possible Utilization in Drug Delivery Systems
URI https://link.springer.com/article/10.1007/s10924-013-0587-x
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Volume 21
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