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What is “Peptide Synthesis and Purification”?

Peptide synthesis and purification are fundamental processes in pharmaceuticals, biotechnology, and biomedical research.

Solid-Phase Peptide Synthesis (SPPS): Peptides are synthesized stepwise from the C-terminus to N-terminus on an insoluble resin. Each cycle adds one protected amino acid.

Purification:TFA (trifluoroacetic acid) with scavengers (e.g., water, triisopropylsilane) cleaves peptides from resin and removes protecting groups

why choose qyaobio chinapeptide?

Custom peptide synthesis expert

QYAOBIO has the capability to synthesize peptides at different purity levels from crude to ≥95%. Various scales from mg to kg to satisfy any aliquoting requirements. In addition, express delivery is available for urgent projects. Higher purity levels require additional production time and cost. We recommend specific purity for different applications.

We are able to synthesize peptide of 150 amino acids and above, longer peptides are combined by recombinant peptide technology.

  • >95% success rate
  • 16 years peptide synthesis experience
  • Flexible quantity from mg to kg
  • Different purity from crude to 98%
  • Longest sequence up to 150 AA
  • 400+ modification methods

The peptides we can customize include:

CORE COMPETITION

Our advantages

Customer Centricity

We strive to provide the all-round positive experience for our customers in worldwide.

Operational Excellence

QYAOBIO is the leading and successful manufacturer of peptides synthesis in China.

Innovation and Technology

We strive to provide the all-round positive experience for our customers in worldwide.

Expert Team

Our expert team provides reliable capability and hands-on oriented solution for any challenge projects.

  • High-quality peptides with success delivering rate of more than 98%.
  • Unlimited capability of short or long, chemical or recombinant peptides.
  • Advanced technology in conjugations, modifications, and labeling.
  • Free peptide design assistance with competitive price.
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Custom Synthesis Technology

Peptides synthesis is the chemical joining process of two or more amino acids via peptide bonds. The typical amide bonds are formed by condensation reaction of the carboxyl group and the amino group from the growing peptide chain.

Chemical Peptide Synthesis

Chemical peptide synthesis normally occurs from the C- to N-terminus direction, it is a precise step-wise addition of one amino acid at once.

Solid Phase Peptide Synthesis

Solid phase peptide synthesis starts with the C-terminal end anchoring to a resin polymer, then leaves the N terminal amine unit to attach another N-protected amino acid unit freely. Then, the newly added amino acid will undergo de-protection of N-terminal amine. Thereby, allows the addition of another N-protected amino acid unit.

The assembling continues by repeating cycle of coupling, washing, and de-protection reactions. The final peptide will be cleaved from the anchoring resin and purified once synthesis complete.

Liquid Phase Peptide Synthesis

Liquid phase peptide synthesis is ideal for short peptides, such as dipeptides.

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Peptide Purification Method

Despite the high efficiency of most peptide synthesis methods, many synthesis processes still generate undesired impurities, because of the incomplete deprotection, unwanted reactions between free protecting groups, truncation and/or deletion of amino acids, isomers.

Among these methods, RP-HPLC is the most widely purification process. Different from the conventional HPLC separates products by the concentration of polar solvents on mobile phase. RP-HPLC can capture hydrophobic molecules from aqueous solutions, then release them in function of hydrophobicity. This is easier to separate required peptides from undesired impurities.

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Synthetic peptide applications

Qyaobio has substantial and long-standing expertise in peptide synthesis. We provide the highest quality custom peptides, no matter how complex or unusual of peptide sequences.

Synthetic peptides are ideal for a wide variety of applications and research areas. These synthetic peptides play the critical role in MS-based protein discovery, characterization, and quantitative analysis, especially for proteins as early disease biomarkers.

In addition, synthetic peptides are also applied in clinical diagnosis and disease treatment. Including:

  • Disease biomarker identification
  • Drug target development
  • Cancer diagnosis and therapeutics
  • Epitope mapping
  • Antibody production
  • Protein functionality and characterizations
  • Enzyme-substrate or receptor-substrate interactions
  • Vaccine design

Grug & Gene Delivery

In advanced gene and drug delivery, cell-penerating peptides and self-assembling peptides are two critical bio-active components. Comparing to viral vectors, peptides are easier to synthesize with more accessible and widespread.

Peptide Drugs

Many peptide drugs are synthesized from chemical modification of natural molecules. These drugs are invaluable for multiple treatment of metabolic diseases.

Tissue Engineering

Peptides with cell adhesion and self-assembling provide new opportunity in tissue engineering. These peptides are useful bioactive molecules to support cellular growth and tissue regeneration.

Peptide Vaccines

Vaccine are the most successful strategies of modern medicine. Peptide vaccines are a cost-effective, safe and highly specific alternative for conventional vaccines.

Cosmetic Application

Cosmetic peptides have protective and regenerative properties, many personal care products harness the beneficial properties. Small cosmetic peptides can cross the skin carrier due to the easy diffusion. Peptides with antimicrobial in cream can prevent and treat skin conditions.

🔥 Unlock Peptide Innovation, Accelerate Your Drug Discovery!

Need research-grade peptides, GLP-1 intermediates, or GMP-scale manufacturing? We deliver:
Cutting-Edge Synthesis: FMOC/BOC solid-phase technology for complex modifications (disulfide bridges, phosphorylation, etc.);
End-to-End Solutions: From sequence design to purity validation, supporting preclinical to commercial stages;
Rapid Turnaround: Standard peptides in ≤7 days, expedited options available!
📞 Contact Our Experts Now: Email peptide@qyaobio.com for a customized proposal!

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