PLGA-PEG-Alkyne (PLGA-PEG-ALK), MW x 30K, n 2K provides a biodegradable amphiphilic block copolymer for click chemistry and nanoparticle research and specifically combines a 30 kDa poly(lactic-co-glycolic acid) (PLGA) block with a 2 kDa polyethylene glycol (PEG) chain. Its terminal alkyne supports bioconjugation, while the PLGA-rich structure enables drug encapsulation and controlled-release formulation studies.
Key Features and Benefits
- 30 kDa PLGA Block: Provides a substantial biodegradable hydrophobic polyester segment for nanoparticle formation, drug encapsulation, and controlled-release research.
- 2 kDa PEG Block: Introduces a hydrophilic PEG chain that specifically contributes to nanoparticle surface hydration and aqueous dispersion properties.
- Terminal Alkyne Functionality: Provides a reactive alkyne group for covalent conjugation with compatible azide-functionalized molecules through click chemistry.
- Amphiphilic Structure: Combines hydrophobic PLGA and hydrophilic PEG segments to support polymeric nanoparticle formation under suitable processing conditions.
- Biodegradable PLGA Backbone: Contains hydrolytically degradable ester bonds that support investigations of polymer degradation, matrix erosion, and drug release behavior.
- PLGA-Rich Composition: Features a nominal 15:1 PLGA-to-PEG molecular weight ratio, providing approximately 6.25% PEG by combined block mass.
- Click Chemistry Compatibility: Supports copper-catalyzed azide-alkyne cycloaddition (CuAAC) for covalent attachment of compatible azide-containing compounds.
- Controlled-Release Potential: Provides a substantial PLGA matrix for investigating drug diffusion, polymer hydrolysis, and sustained-release behavior.
- Surface Functionalization Versatility: Enables attachment of targeting ligands, fluorescent probes, and other functional molecules through alkyne-based conjugation chemistry.
Applications
- Click Chemistry Bioconjugation: Enables covalent attachment of azide-functionalized molecules through CuAAC reactions for polymer modification and conjugate development.
- Functionalized Nanoparticle Development: Supports preparation of biodegradable nanoparticles containing PLGA-rich hydrophobic domains, PEG chains, and terminal alkyne functionality.
- Targeted Drug Delivery Research: Enables conjugation of compatible azide-modified targeting ligands for investigating receptor interactions and nanoparticle targeting strategies.
- Hydrophobic Drug Encapsulation: Supports incorporation of compatible, poorly water-soluble compounds into biodegradable PLGA-based polymer matrices.
- Controlled Drug Release: Facilitates investigations of drug diffusion, polymer degradation, and matrix erosion in sustained-release formulations.
- Fluorescent Nanoparticle Labeling: Supports conjugation with azide-functionalized fluorescent dyes for imaging, particle tracking, and analytical research.
- Nanoparticle Surface Engineering: Enables chemical modification of polymer surfaces to investigate ligand presentation, hydration, protein interactions, and colloidal stability.
- Polymer Degradation Studies: Supports characterization of PLGA hydrolysis, molecular weight reduction, and degradation-dependent drug release behavior.
- Biodegradable Biomaterials: Provides an alkyne-functionalized polymer building block for developing experimental biodegradable materials and chemically modified delivery systems.
Storage and Handling
- Storage: Store at −20°C in a dry, tightly sealed container, protected from moisture and excessive heat. Follow product-specific storage instructions when available. Minimize humidity exposure to reduce premature PLGA hydrolysis.
- Handling: Handle using clean, dry equipment and dissolve in a compatible solvent, such as dichloromethane, acetone, DMF, or DMSO. Confirm solubility before selecting the formulation method.
- Prepare polymeric nanoparticles through nanoprecipitation, emulsification, or solvent evaporation, depending on the desired formulation characteristics. The nominal 15:1 PLGA-to-PEG ratio provides approximately 6.25% PEG by combined block mass. This PLGA-rich composition may influence hydrophobic drug loading, particle formation, and aqueous dispersion behavior.
- Use the terminal alkyne for conjugation with compatible azide-functionalized molecules through copper-catalyzed click chemistry. Select reaction conditions that preserve PLGA integrity and minimize unwanted hydrolysis. Conventional terminal alkynes generally require copper catalysis for efficient azide-alkyne cycloaddition.
- Evaluate conjugation efficiency, polymer integrity, particle size, drug loading, and release behavior using appropriate analytical techniques. Remove residual copper when required by downstream applications. Avoid prolonged exposure to moisture, strong acids, and alkaline conditions. Confirm the PLGA lactide-to-glycolide ratio, alkyne functionality, and polymer specifications before use.
PLGA-PEG-Alkyne (PLGA-PEG-ALK), MW x 30K, n 2K combines biodegradable PLGA, hydrophilic PEG, and terminal alkyne functionality and specifically supports click chemistry conjugation, functionalized nanoparticle development, targeted drug delivery research, and controlled-release formulation studies.
AxisPharm offers 5000+ PEG Linkers with high purity. Different kinds of PEG Reagents may be available by custom synthesis.