We are a specialized service provider in lipid nanoparticle (LNP) technology, delivering comprehensive solutions for peptide delivery. Supported by an expert R&D team, cutting-edge technology platforms, and stringent quality control systems, we offer one-stop services-from peptide encapsulation and targeted delivery design to optimizing cellular uptake and release profiles. With extensive project experience, we guarantee high delivery efficiency and excellent safety, providing full technical support tailored to your specific needs in peptide drug development.
Lipid nanoparticles create a stable and protective environment that shields peptides from complex physiological challenges such as enzymatic degradation and pH changes. This protection significantly extends the half-life of peptide drugs, enhances bioavailability, and minimizes off-target losses, ensuring more peptides reach their intended targets to exert therapeutic effects.
Peptide drugs are sensitive to temperature, light, and oxidation, making them prone to degradation or denaturation. Encapsulation in lipid nanoparticles isolates peptides from these harmful external factors, improving their chemical stability. This facilitates better storage and transport, reducing quality risks throughout the supply chain.
Surface modification of lipid nanoparticles with targeting ligands-such as antibody fragments, peptide ligands, or glycans-enables active delivery to specific cells or tissues. This targeted approach allows peptides to accumulate at diseased sites, increasing therapeutic precision, reducing side effects on healthy tissues, and boosting the therapeutic index. This is particularly valuable in cancer therapy and treatments for localized inflammation.
Lipid nanoparticles' size and surface properties promote efficient cellular uptake. For example, positively charged LNPs can interact with negatively charged cell membranes, enhancing fusion and facilitating intracellular delivery. This is crucial for peptide drugs targeting intracellular processes, such as gene editing or signaling pathways, markedly improving delivery efficiency and drug potency.
Typically composed of naturally derived or biocompatible synthetic lipids, lipid nanoparticles ensure excellent compatibility with the human body. They are metabolized naturally without harmful by-products, minimizing immunogenicity and toxicity, thereby enhancing overall drug safety.
By tuning the lipid composition and structure-such as lipid types, ratios, or incorporation of stimuli-responsive materials-controlled or sustained release of peptide drugs can be achieved. LNPs can also be engineered for triggered release in response to physiological cues like pH, temperature, or enzymes. This tailored release allows personalized delivery designs based on pharmacokinetics and therapeutic needs, maintaining effective drug levels and improving outcomes.
We design and synthesize lipid nanoparticle carriers based on peptide properties like molecular weight, isoelectric point, and delivery targets. This involves selecting suitable lipids-cationic, neutral, or polymers-and optimizing lipid ratios and structures to enhance particle size, surface charge, stability, loading capacity, and protection.
Using cell-based models, we screen various LNP formulations to evaluate encapsulation efficiency, cellular uptake, intracellular release, and cytotoxicity, identifying carriers that offer the best delivery performance and biocompatibility.
Peptides are stably encapsulated within LNPs to protect them from enzymatic degradation and rapid clearance, thereby prolonging circulation time and improving stability and bioavailability.
By decorating LNP surfaces with targeting ligands such as antibodies, peptides, or glycoproteins, we enable precise delivery to specific tissues or cells. For example, transferrin-modified LNPs can target tumor cells or cross the blood-brain barrier, enhancing efficacy while minimizing off-target effects.
We offer bespoke LNP carrier design tailored to client needs, including lipid selection, ratio adjustments, and surface modifications. For example, carriers for rapid-release peptides may have lower hydrophobicity, whereas long-circulating peptides may require PEGylation.
We optimize delivery strategies for peptide drugs by refining nanoparticle formulations, loading techniques, and administration routes (e.g., intravenous, subcutaneous, intranasal), maximizing delivery efficiency and therapeutic effects.
We assess peptide release from LNPs through in vitro and in vivo models, studying release kinetics, tissue distribution, cellular uptake, intracellular localization, and pharmacodynamics to support drug development and clinical translation.
Comprehensive characterization of LNPs includes particle size/distribution, zeta potential, morphology, crystallinity, and thermal stability, using advanced tools like dynamic light scattering (DLS), transmission and scanning electron microscopy (TEM, SEM), and differential scanning calorimetry (DSC) to ensure quality and stability.
We quantify peptide encapsulation efficiency, drug loading, and release profiles using high-performance liquid chromatography (HPLC), UV-Vis spectrophotometry, and mass spectrometry. These analyses are essential for evaluating and optimizing peptide delivery performance.
Clients provide peptide details; we evaluate feasibility and propose a plan.
We design and prepare lipid nanoparticles based on the assessment.
Peptides are loaded into nanoparticles and purified.
Test loading efficiency, cell uptake, and safety using cell models.
If needed, conduct animal tests for drug efficacy and pharmacokinetics.
Scale up production, optimize processes, and ensure consistent quality.
Expert TeamExperienced specialists in drug delivery, nanomaterials, and biochemistry.
Strict Quality ControlFull quality checks to ensure size, loading, stability, and other key metrics.
Customized SolutionsTailored nanoparticle formulations and delivery plans to meet client needs.
Strong Technical ExperienceYears of R&D to design effective and safe delivery systems for various peptides.
The delivery efficiency depends on several factors, including the particle size, charge, and surface modifications of the lipid nanoparticles; the properties of the peptide (e.g., molecular weight, isoelectric point, stability); the route of administration; and the characteristics of the target tissue. By optimizing these variables, delivery efficiency can be significantly improved.
In general, well-designed lipid nanoparticles can achieve high cellular uptake and effective drug release, enhancing peptide concentrations in target tissues and enabling the intended therapeutic effect. In some studies, this delivery system has demonstrated several-fold to even dozens-fold improvements in efficiency compared to traditional administration methods.
