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764817

Sigma-Aldrich

Poly(lactide-co-glycolide)-block-poly(ethylene glycol)-block-poly(lactide-co-glycolide)

average Mn (1100-1000-1100), lactide:glycolide 75:25

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Synonym(s):
PLGA-PEG-PLGA
UNSPSC Code:
12162002
NACRES:
NA.23

description

typical PEG PDI<1.1; overall PDI≤2.0 (THF, PS)

Quality Level

100

form

semisolid

feed ratio

lactide:glycolide 75:25

mol wt

PEG average Mn 1,000
PLGA average Mn 2,200
average Mn (1100-1000-1100)

degradation timeframe

2-3 weeks

transition temp

Tm 230-235 °C

PDI

<2.0

storage temp.

2-8°C

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General description

PLGA-PEG-PLGA is an amphiphilic triblock copolymer which can self-assemble into micelles in aqueous medium due to the hydrophobic interactions present in the hydrophobic segments. The PEG segment imparts hydrophilicity and improves the biocompatibility of the copolymer. The PLGA segment forms a hydrophobic core and can solubilize hydrophobic drugs. These copolymers are widely used as nanocarriers for the sustained release of drugs.

Application

Used in the synthesis of targeted nanoparticles which are used for differential delivery and controlled release of drugs.

Features and Benefits

Biocompatible, degradable, thermosensitive, high stability, small size (<200 nm) and properties can be easily modified.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Zhimei Song et al.
Journal of colloid and interface science, 354(1), 116-123 (2010-11-04)
The aim of this study was to assess the potential of new copolymeric micelles to modify the pharmacokenetics and tissue distribution of Curcumin (CUR), a hydrophobic drug. In the present study, a poly (d,l-lactide-co-glycolide)-b-poly(ethylene glycol)-b-poly(d,l-lactide-co-glycolide) (PLGA-PEG-PLGA) copolymer was synthesized and
Frank Gu et al.
Proceedings of the National Academy of Sciences of the United States of America, 105(7), 2586-2591 (2008-02-15)
There has been progressively heightened interest in the development of targeted nanoparticles (NPs) for differential delivery and controlled release of drugs. Despite nearly three decades of research, approaches to reproducibly formulate targeted NPs with the optimal biophysicochemical properties have remained
PLGA-PEG Encapsulated sitamaquine nanoparticles drug delivery system against Leishmania donovani
Kumara, R., Sahoo, G. C., Pandeya, K., Dasa, V. N. R., Yousuf, M., Ansaria, S. R., &amp; Dasa, P.
Journal of Scientific and Innovative Research, 3(1), 85-90 (2014)

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