8-Arm PLGA-COOH

Price range: $300.00 through $1,200.00

8-Arm PLGA-COOH (Eight-Arm Poly(lactic-co-glycolic acid)-Carboxyl) is a star-shaped biodegradable polymer consisting of eight PLGA chains radiating from a multifunctional core and terminated with carboxylic acid (COOH) groups. Compared with linear PLGA-COOH, 8-Arm PLGA-COOH provides significantly higher functional group density, enhanced conjugation efficiency, improved drug loading capability, and greater control over polymer architecture. The terminal carboxyl groups enable efficient coupling with amine-containing molecules, making this polymer ideal for targeted drug delivery, nanoparticle functionalization, hydrogel formation, and biomaterials research.

Product Specifications

Product Name: 8-Arm PLGA-COOH
Polymer Composition: Eight-Arm Poly(lactic-co-glycolic acid)-Carboxyl
Molecular Weight: Custom molecular weights available
Lactide:Glycolide Ratio: 50:50, 65:35, 75:25, 85:15, Custom
Functional Groups: Carboxyl (COOH)
Appearance: White to off-white solid
Solubility: DMSO, DMF, Acetone, THF, Dichloromethane, Chloroform
Storage: -20°C, dry and protected from light
Purity: Typically ≥95%%

8-Arm PLGA-COOH structure

 

Description

8-Arm PLGA-N₃ is a highly branched biodegradable polyester designed for advanced drug delivery and biomedical applications. The polymer consists of eight PLGA chains attached to a central multifunctional core, creating a star-shaped architecture with multiple terminal azide groups.

The azide functionalities readily participate in copper-catalyzed azide-alkyne cycloaddition (CuAAC) and strain-promoted azide-alkyne cycloaddition (SPAAC) reactions, enabling efficient conjugation of peptides, proteins, antibodies, fluorophores, nucleic acids, targeting ligands, and other biomolecules. Compared with conventional linear PLGA derivatives, the eight-arm architecture offers substantially higher reactive group density and increased versatility for the preparation of multifunctional nanoparticles, targeted delivery systems, and crosslinked biomaterials.

Upon hydrolysis, the polymer degrades into lactic acid and glycolic acid, making it suitable for biodegradable pharmaceutical formulations, regenerative medicine, and biomaterials development.


Applications

  • Drug delivery systems
  • Polymeric nanoparticles
  • Polymeric micelles
  • Click chemistry conjugation
  • Targeted drug delivery
  • Surface modification
  • Hydrogel formation
  • Tissue engineering
  • Biomaterials engineering
  • Nanomedicine research

Features and Benefits

  • Star-shaped eight-arm PLGA architecture
  • Multiple terminal azide groups
  • Higher functional group density than linear PLGA
  • Compatible with CuAAC and SPAAC click chemistry
  • Biodegradable and biocompatible
  • Enhanced drug loading capability
  • Suitable for nanoparticle and hydrogel fabrication

Additional information

Molecular Weight

10K, 20K, 40K

Package Size

1g, 5g