Poly(L-Glutamic acid)-MPEG

Price range: $400.00 through $1,200.00

Poly(L-Glutamic Acid)-MPEG (Poly(L-Glu)-MPEG) is a biodegradable polypeptide-polyethylene glycol copolymer consisting of poly(L-glutamic acid) and methoxy polyethylene glycol (mPEG). The poly(L-glutamic acid) segment provides multiple carboxylic acid functionalities for drug conjugation and biomolecule attachment, while the mPEG segment improves water solubility, biocompatibility, and colloidal stability. Poly(L-Glutamic Acid)-MPEG is widely used in drug delivery, nanoparticle formulation, biomaterials engineering, and nanomedicine research.

Product Specifications

Product Name: Poly(L-Glutamic Acid)-MPEG
Polymer Composition: Poly(L-Glutamic Acid)-Methoxy Polyethylene Glycol
Molecular Weight: MPEG (1k, 2k, 5k, 10k Da), Poly(L-Glutamic Acid) (10-500 repeating units), Custom
Functional Groups: mPEG, Carboxylic Acid (COOH)
Appearance: White to off-white solid
Solubility: Water, PBS, Aqueous Buffers
Storage: -20°C, dry and protected from light
Purity: Typically ≥95%

PEG-poly(L-glutamic acid)

 

Description

General Description

Poly(L-Glutamic Acid)-MPEG is an amphiphilic block copolymer that combines the biodegradable and functional properties of poly(L-glutamic acid) with the hydrophilic and stealth characteristics of polyethylene glycol. Poly(L-glutamic acid) contains pendant carboxylic acid groups that can be used for conjugation with drugs, peptides, proteins, targeting ligands, and imaging agents.

The mPEG segment enhances aqueous solubility, improves biocompatibility, reduces nonspecific protein adsorption, and increases colloidal stability. Poly(L-Glutamic Acid)-MPEG is frequently employed in polymer-drug conjugates, nanoparticle formulations, micellar drug delivery systems, tissue engineering scaffolds, and advanced biomaterials. The biodegradable nature of both components makes this copolymer particularly attractive for pharmaceutical and biomedical applications.

Applications

  • Drug delivery systems
  • Polymer-drug conjugates
  • Nanoparticle formulation
  • Polymeric micelles
  • Protein conjugation
  • Peptide conjugation
  • Targeted drug delivery
  • Tissue engineering
  • Biomaterials development
  • Nanomedicine research

Features and Benefits

  • Biodegradable polypeptide backbone
  • Multiple carboxylic acid functionalities
  • Hydrophilic mPEG segment
  • Excellent water solubility
  • Improved biocompatibility
  • Reduced protein adsorption
  • Enhanced colloidal stability
  • Suitable for drug conjugation
  • Available in multiple molecular weights

Additional information

Poly(L-glutamic acid) MW

3000, 7500, 15k

PEG MW

1000, 2000, 5000

Package size

200mg, 500mg, 1g