PEG/Polymer Lipids

Overview

PEGylated and other Polymer-conjugated lipids are innovative systems in lipid-based drug delivery and advanced biomedical formulations. Incorporating PEGs or alternative polymers into lipid formulations can improve how the body interacts with the drug in the formulation, such as enhancing biodistribution and extending in vivo circulation half-life, as well as improving the stability of liposomes and LNPs. 

Our PEG / Polymer Lipid category brings together PEG, and other polymers such as polysarcosine, with our highly pure phospholipids, ceramides, sterols, glycerides, and fatty acids to tune surface properties, formulation behavior, and analytical workflows. We also offer specialized fluorescently labeled and isotope labeled variants, providing researchers with powerful tools to trace, image, and quantitatively track lipid behavior within complex biological systems.

Built for Formulation Flexibility

Our comprehensive catalog of PEG and Polymer Lipids integrates seamlessly into existing formulations, helping researchers fine tune steric stabilization, particle behavior, and surface presentation in liposomes and LNPs. These materials are available with a wide range of lipid anchor architectures, including long  and short chain variants, fully saturated, unsaturated, and mixed acyl options, enabling precise control over membrane insertion strength, fluidity, and formulation compatibility. In addition to traditional PEGylated constructs, we offer diverse polymer backbones, such as polysarcosine, with multiple polymeric chain lengths to modulate stealth behavior, circulation properties, and ligand accessibility. This breadth ensures that Avanti’s PEG and Polymer Lipids can be tailored to support everything from foundational formulation development to sophisticated nanoparticle engineering.

Choose the Chemistry That Fits Your System

With multiple available PEG/Polymer lipid formats, researchers can select the appropriate one depending on the desired membrane anchor, polymer length, and application. PEG phospholipids are widely used in liposomal and LNP systems, while PEG ceramides, sterols, glycerides, and fatty acids offer alternative behavior and formulation characteristics. Fluorescent and isotope labeled versions also provide useful options for tracking, method development, and characterization. 

Early-Stage R&D to Clinical Delivery

Designed for reliability and experimental consistency, Avanti’s PEG/Polymer Lipids offer the high purity materials required for reproducible, high quality outcomes, complemented by expert technical support to guide formulation and design decisions. Their seamless compatibility with phospholipids, cationic lipids, and other functional excipients makes them ideal for constructing advanced delivery systems and membrane engineered platforms.

Ensure compliance with our fully documented lipids

All Avanti Research lipids and polymers are rigorously tested to fulfill the highest standards of reproducibility and regulatory compliance. Every compound is delivered with detailed documentation to support regulatory submission or publication and is backed by:

• Certificate of Analysis (CoA)
• Material Safety Data Sheet (MSDS)
• Batch traceability
• Technical support for formulation consultation

In addition, the Avanti Research Quality Management System is NSF-ISR-certified. 

Explore our lipids.

For formulation guidance or custom synthesis requests, contact our scientific team for expert support.