Cellular delivery platform — peptide, lipid, and endosomal escape-oriented strategies for improving oligonucleotide entry, trafficking, and intracellular performance.
Cellular uptake and intracellular delivery remain major determinants of therapeutic oligonucleotide performance. Even when the oligo chemistry is well optimized, limited membrane interaction, inefficient internalization, or entrapment in endosomal compartments can reduce biological activity.
Bio-Synthesis supports uptake- and delivery-oriented oligonucleotide conjugation strategies that can be integrated with siRNA, antisense oligonucleotides (ASO), splice-switching oligonucleotides (SSO), and other advanced oligo formats. Our service focus includes Peptide-Oligo Conjugates, Lipid-Oligo Conjugates, and modifications for endosomal escape and conjugation to improve intracellular access and downstream therapeutic performance.
Figure: Mechanism of cellular uptake and intracellular delivery of oligonucleotide conjugates, including membrane interaction, endocytosis, endosomal trafficking, and cytoplasmic release.
cellular delivery platform
Delivery-focused oligonucleotide design with control over cellular entry motifs, membrane-associating conjugates, and intracellular release or endosomal escape strategies.
Peptides
Cell-penetrating and targeting motifs
Lipids
Improved association and uptake
Escape
Intracellular release strategies
Design
Conjugation and linker options
Peptide-oligo conjugates are used to improve cellular entry, receptor interaction, tissue localization, or intracellular trafficking through cell-penetrating or targeting peptide motifs.
Explore related therapeutic oligonucleotide conjugation strategies and delivery optimization approaches.
Lipid-oligo conjugates improve membrane association, uptake behavior, biodistribution, and delivery performance through hydrophobic or amphiphilic conjugation architectures.
Explore lipid-oligonucleotide conjugation services for membrane-associated delivery strategies.
View Service Details →
Endosomal escape-focused modifications and conjugation strategies help improve release of internalized oligonucleotides from endosomal compartments so they can reach intracellular targets more efficiently.
Learn about endosomal escape modification strategies for intracellular delivery improvement.
This summary table helps distinguish each delivery platform by mechanism focus and common intracellular delivery role.
A structured workflow from uptake barrier analysis to conjugation design and intracellular delivery evaluation.
Workflow Diagram
Figure: A cellular delivery program typically starts with uptake barrier analysis, followed by conjugation strategy selection, intracellular trafficking or escape optimization, and downstream evaluation of activity and delivery performance.
Peptide and lipid conjugates can improve cellular association and entry compared with unconjugated oligonucleotide formats.
Endosomal escape-oriented strategies can improve release into intracellular compartments where oligonucleotide targets are located.
Multiple conjugation strategies can be matched to oligo class, target biology, trafficking barrier, and downstream therapeutic objective.
siRNA, antisense oligonucleotides, splice-switching oligonucleotides, and other therapeutic oligonucleotide formats can be adapted with uptake- and delivery-oriented conjugation strategies depending on chemistry and application goals.
Peptide-oligo conjugates are used to improve cellular entry, receptor interaction, and intracellular delivery through cell-penetrating or targeting peptide motifs.
Lipid conjugation can improve membrane association, biodistribution, cellular uptake, and delivery performance depending on oligo format and lipid architecture.
Endosomal escape is a key limitation in intracellular oligonucleotide delivery. Modifications or conjugation strategies that improve escape from endosomal compartments can increase access to intracellular targets and improve activity.
The best delivery strategy depends on the oligo format, target cell type, uptake barrier, intracellular target location, and whether membrane entry or endosomal escape is the dominant limitation.
Yes. In some programs, peptide motifs, lipid conjugates, and endosomal escape-oriented modifications can be combined to improve cellular uptake, trafficking, and intracellular release.
Contact
Share the oligonucleotide format, delivery challenge, preferred conjugation concept, intracellular target context, and current development stage. We’ll help define a practical uptake and delivery strategy for your program.
Tip: Include the oligo class, uptake barrier, preferred peptide or lipid concept, and whether endosomal escape is a major delivery challenge.
Trusted by biotech leaders worldwide for over 45+ years of delivering high quality, fast and scalable synthetic biology solutions.