Peptide-Enabled Drug Delivery

Using peptide chemistry to guide cargo delivery 

Peptides can contribute to drug delivery through molecular recognition, carrier functionalization, membrane interactions and the modulation of cargo–carrier behaviour. Their sequence and chemical architecture can be adapted to support different delivery objectives.

At Peptide Intelligence Consulting, we help researchers investigate how peptide design can contribute to delivery-system function and how peptide properties interact with the wider carrier architecture.

The scientific challenge

Adding a peptide to a delivery system does not automatically improve its performance. Peptide charge, conformation, orientation, density and accessibility can influence how it interacts with the carrier and the surrounding biological environment.

A peptide may also alter particle stability, cargo association or interactions with unintended biological components. Its contribution must therefore be assessed within the complete delivery system.

What we can help with 

Peptide–cargo and peptide–carrier interactions

• Assess molecular features that may influence peptide association with cargo or carrier components.

• Explore the role of charge, hydrophobicity and chemical modification.

• Identify formulation and design variables that may affect compatibility.

Peptide functionalization strategies

• Compare concepts for incorporating peptides into lipid or polymeric delivery systems.

• Consider the implications of surface presentation, linker chemistry and peptide accessibility.

• Explore design considerations for balancing carrier stability with functional interactions.

Membrane-interacting delivery peptides

• Investigate how peptide sequence and amphipathicity may influence membrane association.

• Explore peptide designs intended to support cellular entry or intracellular trafficking.

• Assess potential trade-offs between membrane activity and selectivity.

Delivery-system evaluation

• Define experiments to distinguish carrier uptake from functional cargo delivery.

• Identify controls for investigating the contribution of the peptide component.

• Help interpret relevant physicochemical and biological data.

Our approach

We start by identifying the intended role of the peptide: for example, molecular recognition, carrier association or membrane interaction. We then consider how sequence design, chemical attachment and carrier composition may influence that role.

The proposed evaluation strategy depends on the delivery platform and the scientific question. It may include physicochemical characterization, peptide–carrier interaction studies, cellular uptake measurements or functional cargo assays.

Potential applications

• Peptide-functionalized nanoparticles

• Peptide–lipid and peptide–polymer systems

• Nucleic acid delivery research

• Cellular delivery and targeting concepts

• Hybrid peptide–nanomaterial platforms

What you can expect

Potential outputs include a peptide functionalization strategy, a comparison of candidate designs, recommendations for linker or presentation studies, a control framework and an experimental plan for evaluating the peptide's contribution to delivery.

Discuss your peptide-enabled delivery project

If you are exploring how a peptide could improve a delivery platform, we can help assess the molecular design options and define the experiments needed to establish its role.

Contact Peptide Intelligence Consulting to discuss your project.