Empower your research with fully customizable, high-quality antisense oligonucleotide (ASO) libraries designed for robust target validation, functional genomics, and therapeutic development. An ASO library consists of hundreds or thousands of antisense oligonucleotides targeting numerous mRNA transcripts or specific regions within a transcript, enabling systematic, high-throughput functional screening without the need for genetic modification. Our end-to-end synthesis service combines cutting-edge chemistry, bioinformatics-driven design, and rigorous quality control to deliver oligonucleotides that perform consistently in both in vitro and in vivo settings.
We support biopharmaceutical researchers and companies with scalable, reproducible, and high-fidelity ASO libraries — accelerating the journey from gene to therapeutic candidate.
For additional information, please contact us or send an email to info@acubiochem.com
Precision Oligonucleotides for Accelerated Discovery
Challenges in ASO Development — and How We Solve Them:
Developing effective antisense oligonucleotides involves overcoming significant technical and operational hurdles. Our service is engineered to address these challenges directly:
- Off-Target Effects & Reduced Specificity
Poorly designed ASOs can lead to non-specific binding and suboptimal gene silencing. Leveraging proprietary algorithms and genomic databases, our design pipeline includes comprehensive off-target screening, free energy calculations, and secondary structure analysis to maximize on-target activity. Our bioinformaticians collaborate closely with clients to define target regions, optimize sequences, and minimize off-target risks — all included in our service package.
Inefficient Cellular Delivery and Uptake
A critical barrier for many ASO applications is ensuring efficient cellular internalization and endosomal escape. We offer comprehensive formulation screening services and chemical modification strategies that significantly enhance cellular uptake and intracellular trafficking, including recommendations for optimal delivery vehicles (e.g., lipid nanoparticles, GalNAc conjugates for hepatocyte targeting, or peptide-based carriers) tailored to your specific cell type or in vivo model.
- Restricted Chemical Modification Portfolio
Off-the-shelf modifications may not suit every target or biological environment. We offer an extensive suite of chemical modifications — including phosphororothioate (PS), 2′-O-methyl (2′-OMe), 2′-O-methoxyethyl (2′-MOE), LNA, and cEt — to enhance stability, binding affinity, and pharmacokinetic properties. For in vivo applications, we typically recommend phosphorothioate backbones combined with 2′-O-MOE or LNA modifications to improve serum stability, reduce immunogenicity, and extend half-life.
- Limited Scalability from Pilot to Production
Many providers struggle with transition from small arrays to genome-scale libraries. Our modular synthesis architecture allows seamless scaling — from 100-plex pilot sets to libraries exceeding 10,000 sequences — all with uniform modification profiles and purity guarantees.
- Low Synthesis Yield & Inconsistent Quality
Traditional synthesis methods often suffer from variable yields and impurities. Our platform utilizes state-of-the-art solid-phase synthesizers and optimized chemistries to ensure high coupling efficiency and exceptional purity across each oligonucleotide — routinely achieving >90% full-length product.
- Data Overload and Interpretation Complexity
High-throughput ASO screening generates vast, multi-dimensional datasets that can overwhelm conventional analysis pipelines. We provide integrated bioinformatics support that goes beyond initial design, offering advanced hit-calling algorithms, pathway enrichment analysis, and machine learning-driven prioritization of lead candidates based on efficacy, specificity, and predicted in vivo performance.
- High Cost of Large-Scale Screening
Scaling ASO production for high-content screens is often prohibitively expensive. We offer highly competitive pricing without compromising quality — thanks to automated, high-throughput synthesis platforms that minimize reagent waste and reduce hands-on time.
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Our End-to-End ASO Library Synthesis Platform:
1. Custom ASO Design & Bioinformatics
Our team of computational biologists works with you to identify optimal target regions — including exons, intron-exon junctions, UTRs, and miRNA binding sites. We provide:
- Multi-species homology checks
- Free energy (ΔG) profiling
- Secondary structure avoidance algorithms
- Specificity scoring against transcriptome backgrounds
2. High-Throughput Synthesis
Using advanced array-based synthesizers, we produce hundreds to thousands of ASOs in parallel under precisely controlled conditions. Modifications are introduced site-specifically with coupling efficiencies >99.5% per step.
3. Chemical Modifications for Enhanced Performance
Tailor oligonucleotide properties with backbone, sugar, and base modifications to improve:
- Nuclease resistance
- Cellular uptake
- Binding affinity (Tm)
- Toxicity profiles
4. Stringent Quality Control
Every ASO is validated via:
- HPLC for purity assessment
- MALDI-TOF or ESI mass spectrometry for identity confirmation
- Functional validation available via RT-qPCR or western blot upon request
Clients receive HPLC traces, mass spec confirmation, and purity quantification for every sequence, with additional functional data packages available upon request.
5. Scalable Production & Formats
We deliver ASOs in 96- or 384-well plates, tubes, or lyophilized formats — with options for normalization, resuspension, and barcoding.
6. Rapid Turnaround without Compromise
From sequence finalization to shipment:
- Pilot libraries (<200 ASOs): 3–4 weeks
- Genome-scale libraries: 6–8 weeks
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What Sets Our ASO Libraries Apart:
- High-Depth Coverage: Design libraries against entire gene families, specific pathways, or custom genomic regions with optimized tiling density.
- Advanced Chemistry Options: From uniform modifications to mixed chemistry designs (e.g., gapmers, mixmers, fully modified blockers), we enable precise mechanistic targeting — RNase H recruitment or steric blockade.
- Proven Efficacy: Our libraries have been validated in peer-reviewed studies — including high-impact applications in oncology, neurology, and rare diseases.
- Ready-to-Use Formats: Receive your library fully purified, desalted, QC’d, and formatted for direct use in cell culture or animal models.
Key Applications:
- Target Discovery & Validation:Systematically screen across gene regions to identify the most potent antisense sites — as demonstrated in our work on TNFα mRNA cleavage optimization.
- Functional Genomics & Phenotypic Screening:Rapidly assess gene function across cellular and animal models using high-coverage ASO sets.
- Therapeutic Candidate Screening: Identify lead ASO sequences for preclinical development with enhanced in vivo stability and efficacy.
- Mechanistic Studies: Employ gapmer and blocking oligonucleotides to dissect transcriptional and post-transcriptional regulatory mechanisms.
Accelerate Your Discovery Pipeline with Expert ASO Synthesis
Leverage our deep expertise in oligonucleotide chemistry, bioinformatics, and scalable production to build ASO libraries that deliver reproducible, high-impact results. We've supported clients from target ID through lead optimization — in areas from oncology to neuromuscular diseases.
Contact us today at info@acubiochem.com for a confidential consultation, project outline, and competitive quote. Let's advance your research together.