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926248

Sigma-Aldrich

Redox Responsive Poly(ethylene glycol)-block-poly(lactide-alt-glycolide)

PEG average Mn 5000, PLGA Mn 15000

Synonyme(s) :

Drug release, PEG-PLGA with disulfide linkage, PEG-SS-PLGA, Stimuli-responsive

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About This Item

Formule linéaire :
CH3O(C2H4O)nC7H12O4S2(C5H6O4)m
Code UNSPSC :
12352112
Nomenclature NACRES :
NA.23

Forme

powder, chunks or granules

Niveau de qualité

100

Poids mol.

PEG average Mn 5000
PLGA Mn 15000

Température de stockage

2-8°C

Chaîne SMILES 

O=C(C(C)OC(CO[H])=O)OCCSSCCOC(OCCOCCOC)=O

Catégories apparentées

Application

PEG-SS-PLGA is a redox responsive, biocompatible, amphiphilic block copolymer composed of a hydrophilic PEG block and a hydrophobic poly(lactide-alternative-glycolide) (PLGA) block, with a reducible disulfide linkage between blocks. This polymer can be fabricated into Glutathione (GSH) responsive nanoparticles which can be used as an intracellular drug delivery system.

Different from common Poly(lactide-co-glycolide) (PLGA) polymer, the lactic and glycolic units in Poly(lactide-alt-glycolide) block alternate in sequence in the polymer chain, and the molar ratio of lactic to glycolic units in the polymer is exactly 1:1.

Poly(lactide-alt-glycolide) exhibits excellent solubility in common organic solvents, such as acetonitrile, acetone, dioxane, DCM, and THF, providing great convenience for drug delivery researches and applications.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

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Consulter la Bibliothèque de documents

Claudia Conte et al.
Journal of controlled release : official journal of the Controlled Release Society, 277, 126-141 (2018-03-15)
In the treatment of lung cancer, there is an urgent need of innovative medicines to optimize pharmacological responses of conventional chemotherapeutics while attenuating side effects. Here, we have exploited some relatively unexplored subtle differences in reduction potential, associated with cancer
Lin Yu et al.
Biomacromolecules, 12(4), 1290-1297 (2011-03-03)
This paper reports the influence of sequence structures of block copolymers composed of poly(lactic acid-co-glycolic acid) (PLGA) and poly(ethylene glycol) (PEG) on their thermogelling aqueous behaviors. A series of thermogelling PLGA-PEG-PLGA triblock copolymers with similar chemical compositions and block lengths

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Therapeutic Nanoparticles Harness Myeloid Cells for Brain Tumor-Targeted Delivery and Immunomodulation

Immunosuppressive tumor-associated myeloid cells (TAMC) are responsible for glioblastoma (GBM) resistance to immunotherapies and existing standard of care treatments. This mini-review highlights recent progress in implementing nanotechnology in advancing TAMC-targeted therapies for GBM.

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