Poly(L-aspartic acid) sodium salt

Price range: $260.00 through $960.00

Poly(L-Aspartic Acid) Sodium Salt (PASP-Na) is a biodegradable, water-soluble polyanionic polypeptide composed of repeating L-aspartic acid residues in the sodium salt form. Due to its excellent biocompatibility, biodegradability, and high density of carboxylate groups, PASP-Na is widely used in drug delivery, biomaterials, tissue engineering, nanoparticle formulation, mineralization studies, and biomedical research.

Product Name: Poly(L-Aspartic Acid) Sodium Salt
Alternative Name: PASP-Na, Polyaspartate Sodium Salt
Polymer Type: Anionic Polypeptide
Monomer: L-Aspartic Acid
Counter Ion: Sodium
Appearance: White to off-white powder or lyophilized solid
Solubility: Water, PBS, Saline
Storage: 2–8°C or -20°C for long-term storage
Purity: Typically ≥95%

Description

General Description

Poly(L-aspartic acid) sodium salt is a water-soluble biodegradable polypeptide derived from poly(L-aspartic acid) (PASP). The sodium carboxylate functionalities provide excellent aqueous solubility and enable versatile applications in drug delivery systems, biomaterials, nanoparticle engineering, and biomedical research.

Due to its biocompatibility, biodegradability, and abundant functional groups, poly(L-aspartic acid) sodium salt is widely used in nanomedicine, polymer therapeutics, and surface modification applications.


Key Properties

  • Water-soluble biodegradable polypeptide
  • Sodium carboxylate functionalities
  • Excellent aqueous dispersibility
  • Biocompatible and biodegradable
  • Suitable for conjugation and biomaterial applications

Applications

  • Drug delivery systems
  • Polymeric micelles and nanoparticles
  • Biomaterials and hydrogels
  • Surface functionalization
  • Polymer therapeutics
  • Nanomedicine applications

Functional Overview

The sodium carboxylate groups improve aqueous solubility and facilitate interaction with biomolecules, polymers, and nanoparticle systems, while the biodegradable polypeptide backbone supports biomedical and pharmaceutical applications.


Summary

Poly(L-aspartic acid) sodium salt is a versatile water-soluble biodegradable polypeptide widely used in biomaterials, nanoparticle engineering, drug delivery systems, and advanced nanomedicine applications.

Additional information

Molecular weight

2800 (n=20), 6800(n=50), 14K(n=100), 27K(n=200)

Package size

100mg, 1g