Lipid-oligonucleotide conjugation (LOC) is a technology that links lipid molecules to oligonucleotides (ON) through chemical or biological methods. This approach combines the membrane affinity of lipids with the sequence specificity of oligonucleotides, enabling a range of applications including enhanced nucleic acid functionality, targeted delivery, and nanostructure assembly. BOC Sciences offers professional, custom LOC services covering the full workflow from nucleic acid design and lipid selection to conjugation synthesis, purification, and functional validation. With extensive experience in lipid chemistry and nucleic acid modification, we provide high-purity, highly stable conjugates for DNA, RNA, siRNA, ASO, mRNA, and other nucleic acids. Leveraging advanced analytical platforms, diverse conjugation strategies, and flexible production capabilities, BOC Sciences delivers reliable, controllable, and customizable LOC solutions for research, drug delivery, nanomaterials, and vaccine development.
Custom Lipid-Oligonucleotide Conjugates Offered by BOC Sciences
BOC Sciences provides tailored lipid labeling services for various oligonucleotides, including DNA, RNA, siRNA, ASO, and mRNA. We design the optimal lipid-oligo conjugation strategy based on nucleic acid type, sequence length, functional requirements, and application scenarios, ensuring maximum stability, cellular uptake efficiency, and functional performance. Whether for basic research, drug delivery, nanomaterial assembly, or functional molecule development, we provide end-to-end customized services.
Phospholipid-Oligonucleotide Conjugates
Customizable with various phospholipid types, such as phosphatidylcholine (PC) and phosphatidylethanolamine (PE), to meet different application needs.
Lipid modifications can be applied at the 5', 3', or internal base positions without affecting nucleic acid function.
High-purity LOC products suitable for liposome surface modification and self-assembled nanoparticle construction.
Compatible with other functional molecules for designing multifunctional nanocarriers.
Cholesterol-Oligonucleotide Conjugates
Custom cholesterol labeling for siRNA, ASO, and mRNA.
Supports various scales, from small-scale R&D to industrial production.
Optimized conjugation conditions improve cell membrane penetration and stability in circulation.
Can be further modified with fluorescent or targeting ligands for multifunctional nucleic acid delivery.
Fatty Acid-Oligonucleotide Conjugates
Supports modification with various fatty acids, such as palmitic acid, stearic acid, and oleic acid.
Flexible linker design (5', 3', or internal base) to suit different nucleic acid sequences.
Enables LOC self-assembly into microemulsions or nanoparticles for drug delivery and carrier construction.
Custom analysis and functional validation ensure product purity and activity.
Branched Lipid-Oligonucleotide Conjugates
Offers branched lipid designs to enhance hydrophobicity and self-assembly capability.
Supports modifications at nucleic acid termini or internal bases for complex nanostructure construction.
Customizable multifunctional conjugation, including fluorescent labeling or targeting ligand incorporation.
High-efficiency purification and analytical services to ensure conjugate uniformity and stability.
5' or 3' Terminal Conjugates
Terminal lipid modification for DNA, RNA, siRNA, and ASO.
Supports self-assembled nanoparticles or membrane insertion applications to enhance membrane affinity.
Analytical validation services including HPLC, MS, NMR, and other multidimensional techniques.
Internal Base Conjugates
Lipid introduction at specific base positions for functional or responsive modifications.
Supports hairpin structures, G-quadruplexes, or other specialized nucleic acid structures.
Customizable for self-assembly or nanomaterial construction.
Full-process purification and functional validation services to ensure activity and stability.
Looking for Custom Lipid-Oligo Conjugates?
Whether you need small molecule, nucleic acid, peptide, or protein conjugates, our experts can design and deliver optimized solutions for your project.
BOC Sciences offers end-to-end, fully customized LOC services, covering design, synthesis, and functional validation to meet diverse needs from basic research to industrial production. With extensive experience in lipid chemistry and nucleic acid modification, we are dedicated to providing efficient, stable, and controllable LOC products for precise nucleic acid delivery and versatile applications. Our core service capabilities include:
Why Choose BOC Sciences for Lipid-Oligonucleotide Conjugation?
Expert Team and Technical Strength: Extensive experience in lipid chemistry and nucleic acid modification enables end-to-end, fully customized solutions.
Diverse Conjugation Strategies: Supports amide bonds, thioether bonds, click chemistry, and non-covalent self-assembly to meet various research and application needs.
Flexible Customization and Scale-Up Support: From small-scale R&D to industrial production, with global delivery and localized technical support.
Advanced Analysis and Quality Control: Multi-dimensional analysis (HPLC, MS, NMR) ensures purity, structural integrity, and functional stability.
Extensive Application Experience: Services cover nucleic acid drug delivery, molecular probes, nanomaterials, and vaccine development, supporting both research and industrial applications.
Compliance and Safety Standards: Laboratory facilities and protocols meet GMP and industry standards, providing reliable support for preclinical research and industrial production.
Rapid, Responsive Customer Support: One-on-one technical consultation and customized solutions ensure each project is delivered quickly and accurately to meet client needs.
Efficient Lipid-Oligonucleotide Conjugation Service Workflow
BOC Sciences provides efficient, fully customized LOC services, offering end-to-end control from design to delivery to ensure high-quality, functionally reliable LOC products. Our workflow covers every critical step, combining professional expertise, advanced facilities, and rigorous quality control to support both research and industrial applications. Our service workflow includes:
Needs Assessment and Strategy Design
Discuss project goals, nucleic acid types, and application scenarios with clients.
Provide personalized conjugation strategies and lipid selection recommendations.
Design optimal linker positions, chemical modifications, and functionalization schemes.
Nucleic Acid and Lipid Material Preparation
Select high-purity nucleic acids and lipid compounds according to the design plan.
Perform necessary pre-treatment, modification, or protection to ensure efficient conjugation reactions.
Lipid-Oligonucleotide Conjugation Synthesis
Provide multiple synthesis methods including amide bonds, thioether bonds, click chemistry, and non-covalent conjugation.
Optimize reaction conditions to improve conjugation efficiency and product purity.
Support small-scale R&D as well as medium- to large-scale industrial production.
Purification and Analytical Validation
Multi-dimensional analysis using HPLC, mass spectrometry (MS), and nuclear magnetic resonance (NMR).
Ensure product purity, structural integrity, and functional completeness.
Provide functional validation of self-assembly performance and membrane-binding capability.
Self-Assembly and Functional Optimization (Optional)
Assist LOC molecules in self-assembling into liposomes, nanoparticles, or microemulsions.
Control particle size, surface charge, and stability to meet different application requirements.
Support multifunctional modifications, such as fluorescent labeling or targeting ligand incorporation.
Delivery and Customer Support
Provide global delivery and shipping solutions, ensuring product stability and safety.
Offer technical consultation, usage guidelines, and post-delivery optimization support.
Optimize formulations and batches based on customer feedback.
Interested in Our Custom Lipid Solutions?
Contact our lipid chemistry experts to discuss your project needs.
Practical Applications of Lipid-Oligonucleotide Conjugates in Science
Lipid-oligo conjugation technology expands the applications of nucleic acids in biomedicine and nanoscience by simultaneously imparting hydrophilic and hydrophobic properties. By conjugating lipids to DNA, RNA, siRNA, ASO, or mRNA, LOC enhances in vivo stability and cellular uptake while enabling nanoparticle self-assembly, targeted delivery, and functional modifications. LOC demonstrates strong potential in gene drug delivery, molecular probe development, nanomaterial construction, synthetic biology, immune modulation, and vaccine development.
Nucleic Acid Drug Delivery
LOC technology significantly improves the in vivo stability of DNA, siRNA, and mRNA, reducing degradation in circulation. Lipid modifications enhance cell membrane penetration, allowing efficient cellular uptake without excessive reliance on transfection agents. Optimized lipid types and conjugation strategies enable precise delivery for cancer therapy, gene regulation, and vaccine development, improving both efficacy and safety.
Molecular Probes and Diagnostics
Lipid-oligonucleotide conjugates can be combined with fluorescent, magnetic, or radioactive labels to create highly sensitive molecular probes. LOC probes are suitable for in situ hybridization (FISH), molecular imaging, and early disease detection, enabling precise recognition and localization of specific nucleic acid sequences. Lipid-enhanced membrane binding increases probe stability and signal intensity in both in vitro and in vivo samples, providing reliable tools for basic research and preclinical diagnostics.
Nanomaterials and Functional Self-Assembly
LOC molecules can spontaneously assemble into lipid-nucleic acid nanoparticles or microemulsions due to their amphiphilic structure. By controlling lipid chain length, nucleic acid sequence, and conjugation density, particle size, surface charge, and uniformity can be precisely regulated. Self-assembled nanomaterials serve as drug carriers, targeted delivery platforms, and surfaces for biosensor functionalization, enabling drug release control, signal amplification, and functional material development.
Liposome and Nanocarrier Modification
LOC technology can modify the surface of liposomes or other nanocarriers to enhance targeting ability and in vivo stability. Lipid-nucleic acid conjugation allows for controlled drug release, precise targeted delivery, and combined immune modulation functions. This strategy not only stabilizes carriers in biological systems but also enables multifunctional therapeutic platforms through surface functionalization.
Synthetic Biology and Artificial Cells
Lipid-oligonucleotide conjugates can construct membrane-bound nucleic acid elements, endowing artificial cells or membrane systems with programmable functionality. By designing LOC sequences and structures, molecular computing, logic gate operations, and functional nanosystem assembly are achievable, providing innovative tools for synthetic biology. This approach is valuable for developing artificial cells, intelligent nanodevices, and self-assembled molecular machinery.
Immune Modulation and Vaccine Development
Lipid modification of CpG oligonucleotides or other immunostimulatory nucleic acids enhances immune cell uptake and activation efficiency. LOC technology improves antigen presentation and immune responses in vaccine design while reducing nucleic acid degradation. Lipid conjugation strategies enhance immunogenicity while preserving nucleic acid functionality, providing efficient and controllable nucleic acid carriers for immunotherapy and vaccine development.
Lipid oligonucleotide conjugates are specialized biomolecules in which oligonucleotides, such as DNA or RNA strands, are covalently linked to lipid molecules. This conjugation enhances the physicochemical properties of oligonucleotides, including membrane permeability, stability, and cellular uptake. LOCs are widely used in biomedical research and therapeutic applications, particularly in nucleic acid drug delivery, gene regulation, and molecular diagnostics. By combining the targeting capabilities of oligonucleotides with the biofunctional properties of lipids, LOCs facilitate efficient intracellular delivery and improve the performance of nucleic acid-based therapies and diagnostics.
Key Features and Applications:
Enhanced Delivery: Lipid modification improves cell membrane penetration of nucleic acids like siRNA, mRNA, and antisense oligonucleotides.
Improved Stability: Lipid conjugation protects oligonucleotides from enzymatic degradation in biological systems.
Versatile Applications: LOCs are used in gene silencing, therapeutic nucleic acids, biosensors, and nanomaterial construction.
Customizable Design: Different lipid types and conjugation chemistries allow for tailored LOCs optimized for specific research or therapeutic needs.
What types of lipid-oligo conjugation products do you offer?
BOC Sciences provides a wide range of lipid-oligo conjugates, including phospholipids, cholesterol, fatty acids, branched lipids, terminal conjugates, internal base conjugates, as well as covalent and non-covalent conjugation options. We tailor conjugation strategies to optimize nucleic acid function, enhance self-assembly, and support research, drug delivery, and industrial applications.
Which nucleic acid types can be lipid-labeled?
We provide lipid conjugation for DNA, RNA, siRNA, ASO, mRNA, and other nucleic acids. From short oligonucleotides to long-chain mRNA, BOC Sciences offers customized design solutions including linker site selection, lipid type optimization, and functional modifications, ensuring stable, efficient, and controllable conjugates in biological systems.
How is the quality and functionality of conjugates verified?
BOC Sciences offers multi-dimensional analysis using HPLC, MS, and NMR to confirm conjugate purity, structural correctness, and functional integrity. We also validate self-assembly performance, membrane-binding ability, and other functional properties to ensure reliable performance in drug delivery, nanomaterials, or molecular probe applications.
Do you support small-scale R&D and industrial production?
BOC Sciences flexibly supports LOC projects from small-scale research to medium- and large-scale industrial production. We provide professional project management, optimized process design, and quality control, combined with global delivery and localized technical support, ensuring high purity, functionality, and stability across production scales.
What is the service workflow?
Our LOC service covers full-process management, including needs assessment and strategy design, nucleic acid and lipid material preparation, conjugation synthesis, purification and analytical validation, self-assembly and functional optimization (optional), and product delivery with technical support. Each step is strictly quality-controlled to ensure final conjugates meet the high standards required for research, drug delivery, and nanotechnology applications.
Case Studies and Success Stories
Background
An RNA therapeutics company based in Hamburg, Germany, was developing novel small interfering RNA (siRNA) drugs to suppress genes associated with liver metabolic disorders. In early studies, the team found that naked siRNA molecules were highly susceptible to nuclease degradation in blood and showed poor uptake by hepatocytes. To address this, they planned to conjugate siRNA with lipid molecules to enhance membrane penetration and plasma stability, enabling liver-specific delivery.
What Does BOC Sciences Do?
BOC Sciences' lipid chemistry and oligonucleotide modification team designed and implemented a controlled lipid–siRNA conjugation strategy for the client:
Selected the liver-targeting GalNAc-PEG-DSPE lipid precursor for site-specific conjugation at the 5'-amine end of the siRNA.
Employed an NHS ester–amine reaction under mild conditions (pH 7.2, 4°C) to preserve siRNA secondary structure.
Verified conjugation efficiency and purity using HPLC and MALDI-TOF, and confirmed product integrity by PAGE analysis.
Provided optimized buffer systems and storage conditions to ensure product stability during transport and experiments.
Key Outcomes
Successfully produced high-purity GalNAc-DSPE–siRNA conjugates with >90% conjugation efficiency.
Conjugated siRNA exhibited over 5-fold increased stability in serum.
Client experiments confirmed significantly enhanced uptake of the lipid–siRNA conjugates in hepatocyte models.
A university research team in the UK was studying interactions between cell membrane receptors and specific oligonucleotides. To mimic the membrane environment in vitro, they aimed to prepare oligonucleotide probes that could insert into artificial lipid membranes for membrane-surface signal recognition and real-time fluorescence detection. Traditional non-covalent adsorption probes were unstable, showed signal decay, and had low experimental reproducibility. The team sought a solution using covalent lipid anchoring.
What Does BOC Sciences Do?
BOC Sciences provided end-to-end technical support from lipid selection to conjugation optimization for this project:
Selected Cholesterol-TEG-NHS as the lipid activation precursor and conjugated it to 5'-amine-modified oligonucleotides via NHS ester–amine chemistry.
Optimized conjugation ratios and reaction times to prevent double modification or chain degradation.
Precisely characterized purity and structural integrity of lipid–oligonucleotide conjugates using HPLC and mass spectrometry.
Delivered the final products with detailed technical reports, including reaction schemes, QC data, and recommended solubilization conditions, enabling direct use in membrane model experiments.
Key Outcomes
Successfully obtained high-purity cholesterol–oligonucleotide lipid probes with >95% purity.
Probes stably inserted into artificial lipid bilayers while maintaining high-specificity nucleic acid recognition.
Client experiments showed approximately 4-fold increased fluorescence signal intensity and over 2-fold extended signal duration.
BOC Sciences' precise conjugation control significantly enhanced sensitivity and reproducibility in membrane signaling studies.
Publications
This section showcases high-quality scientific publications in which clients have utilized BOC Sciences' lipid products and custom solutions across various research fields.
N-acetyl-l-cystine (NAC) protects against H9N2 swine influenza virus-induced acute lung injury. International immunopharmacology 22.1 (2014): 1-8. PMID: 24968347 DOI: 10.1016/j.intimp.2014.06.013.
Effect of long-term dietary sphingomyelin supplementation on atherosclerosis in mice. PloS one 12.12 (2017): e0189523. PMID: 29240800 DOI: 10.1371/journal.pone.0189523.
Baricitinib Liposomes as a New Approach for the Treatment of Sjögren's Syndrome. Pharmaceutics. 2022; 14(9): 1895. DOI: 10.3390/pharmaceutics14091895.
Itaconic Acid as a Comonomer in Betulin-Based Thermosets via Sequential and Bulk Preparation. ACS Sustainable Chemistry & Engineering 11.38 (2023): 14216-14225. PMID: 37771764 DOI: 10.1021/acssuschemeng.3c04178.
Industry Distribution of Custom Lipid Synthesis Clients
"BOC Sciences delivered high-quality lipid–oligonucleotide conjugates for our siRNA delivery studies. Their team optimized the linker chemistry, ensuring excellent conjugation efficiency and maintaining consistent batch purity."
— Dr. James Miller, RNA Therapeutics Scientist (United States)
"We relied on BOC Sciences to produce lipid–oligonucleotide conjugates for targeted gene silencing research. The conjugates showed exceptional stability and reproducibility, and the project was completed ahead of schedule."
— Dr. Claudia Fischer, Molecular Pharmacologist (Germany)
"Our collaboration with BOC Sciences focused on synthesizing lipid–antisense oligonucleotide conjugates. Their chemists demonstrated deep understanding of lipid chemistry and oligo modification, delivering products that performed flawlessly in vitro."
— Dr. Patrick O'Connor, Senior Research Scientist (Ireland)
"BOC Sciences provided excellent technical support throughout our lipid–oligonucleotide conjugation project. From initial design to analytical validation, their responsiveness and professionalism made the entire process seamless."
"We commissioned BOC Sciences to synthesize lipid–oligonucleotide conjugates for nanoparticle formulation testing. The materials arrived on time, with full analytical data, and performed exceptionally in our delivery experiments."
— Dr. Henrik Larsen, Formulation Scientist (Denmark)
"BOC Sciences' lipid–oligonucleotide conjugation service exceeded our expectations. The high-quality conjugates significantly enhanced our mRNA delivery platform, and their documentation fully met regulatory submission standards."
— Dr. Natalie Cooper, CMC Development Manager (United Kingdom)
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