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900657

Sigma-Aldrich

Methoxy poly(ethylene glycol)-b-poly(D,L-lactide)

2k-5k

Synonym(s):

mPEG-b-PLA, mPEG-PLA

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About This Item

Linear Formula:
HO[CH(CH3)COO]m[CH2CH2O]nCH3
UNSPSC Code:
12162002
NACRES:
NA.23

Quality Level

100

form

powder or chunks

mol wt

PDLLA average Mn ~5,000
PEG average Mn ~2,000

storage temp.

2-8°C

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Application

Biocompatible, amphiphilic block copolymer composed of a hydrophilic PEG block and a hydrophobic poly(D,L-lactide) (PLA) block. These materials have been used in control release and nanoparticle formulation for drug encapsulation and delivery applications. Well-defined materials with varying properties can be prepared by controlling the relative length of each polymer block. Hydroxyl termination allows for facile further chemical modification of these materials.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW7994
MKCS6258
MKCN5857
MKCD0525

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Ho-Chul Shin et al.
Journal of controlled release : official journal of the Controlled Release Society, 140(3), 294-300 (2009-05-05)
Current clinical and preclinical anticancer formulations are limited by their use of toxic excipients and stability issues upon combining different drug formulations. We have found that poly(ethylene glycol)-block-poly(d,l lactic acid) (PEG-b-PLA) micelles can deliver multiple poorly water-soluble drugs at clinically
Zahra Daman et al.
Pharmaceutical research, 32(11), 3756-3767 (2015-08-01)
Resistance to gemcitabine in pancreatic cancer (PC) may account for the failure of conventional treatments. Recently, salinomycin (SAL) has been identified as selective inhibitor of cancer stem cells (CSCs). In our study, we aimed to deliver SAL to gemcitabine-resistant PC
Yuan Zhang et al.
Pharmaceutical research, 28(5), 1167-1178 (2011-02-23)
Somatostatin analogue octreotide (OCT)-modified PEG-b-PLA micelles were constructed to bind to somatostatin receptors (SSTRs) overexpressed on tumor cells for enhanced intracellular drug delivery and improved therapeutic efficacy for malignant tumors. Copolymers conjugated with octreotide (OCT-PEG₆₀₀₀-b-PLA₅₀₀₀) were synthesized. The fluorescent probe
Yiguang Wang et al.
Pharmaceutical research, 27(9), 1861-1868 (2010-06-19)
To develop an efficient tumor vasculature-targeted polymeric micelle delivery system for combretastatin A4 (CA4), a novel antivascular agent. CA4-loaded micelles were prepared from poly (ethylene glycol)-b-poly (d, l-lactide) copolymers. RGD peptides that target integrins alphavbeta3 and alphavbeta5, markers of angiogenic

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