Peptide Preparation Methods TRIZ Cases

A carbodiimide-based condensing agent and additive improve solid-phase peptide conversion while preventing crystal precipitation.

A lysine-histidine acylation tag enables selective protein labeling without metal ions.

The process uses aqueous suspension and density separation to recover protein, non-gelatinized starch, and fiber without organic solvents.

This case combines liquid-phase synthesis, RP purification, lyophilization, and ion-pairing chromatography to control trace impurities.

Gradient-pH enzymatic hydrolysis modifies gliadin for uniform dispersion after heat sterilization, salt exposure, and storage.

A continuous flow-through sequence replaces Protein A chromatography with chelation, diafiltration, and orthogonal membrane adsorbers.

A non-covalent cucurbituril host holds two aryl guests, stabilizing biomolecules while enabling rapid release and simple filtration.

Visible-light LADA replaces unstable carbon-sulfur links with stable carbon-carbon bonds while preserving protein chirality.

Affinity, cation exchange, and mixed-mode chromatography reduce HMW aggregates by up to 95% and remove far-basic variants completely.

This case uses a solid-phase carrier, deprotection, condensation, and cyclization to simplify purification across peptide derivatives.

This case combines MacT, RD29B, and a 5'-UTR enhancer with p38 suppression in one vector to reduce culture time and cost.

A carboxylic acid derivative enables simple N-terminal amide bonding in natural proteins and peptides while reducing lysine side reactions.

Sulfite or bisulfite ions form a stable adduct that prevents dibenzofulvene regeneration and side reactions in peptide synthesis.

A mixed dispersion of protected amino acids, base, condensing agent, and water enables simpler peptide-bond formation with high purity.

Charged and polar peptide tags replace costly chromatography materials with separation by centrifugation or filtration.

eCLIC uses genetically encoded 5HTP and electrochemical oxidation to label proteins selectively under mild, catalyst-free conditions.

A sodium citrate, phosphate, and TRIS buffer system improves antibody purification by separating LMW, HMW, and charge variants.

Substituted Tet ncAAs and orthogonal encoding support fast bioorthogonal labeling without compromising protein stability.

An engineered heavy-chain cysteine creates homogeneous disulfide-linked antibody dimers and limits unwanted crosslinking.

This case combines Wang-resin synthesis, microwave coupling, and preparative HPLC to produce liraglutide at 99.5% purity.

Dual magnetic bead chemistries automate binding, washing, and protease release for rapid, reproducible, high-purity protein purification.

This case uses structural data and an ellipsoidal shape factor of 0.4–0.6 to predict permeability before peptide synthesis.

This case uses conductivity-based Protein L elution to remove mismatched antibody pairs and purify bispecific antibodies.

A modified cyclic peptide, linker, and chelator complex supports stable CD13 targeting for tumor imaging and radionuclide therapy.

Avoid flow-reactor clogging while continuously synthesizing and purifying peptides.

O-benzotriazole and O-imidazole synthons accelerate azapeptide coupling and reduce side-product risks without sacrificing stability.

Selective peptide ligands in flow-through affinity chromatography protect biologic purity and viral capsid integrity.

This case uses surface potential and gate capacitance measurements to identify amino acids and sequence peptides from limited samples.

A segmented greedy algorithm narrows middle and terminal amino acid searches, reducing peptide linker computation by 79%.

A greedy search starts from the best linker and prioritizes middle, N-terminal, and C-terminal cut points to reduce computation.

Mutated subtilisin BPN' variants broaden peptide substrates and support aqueous synthesis with reduced hydrolysis.

Immobilizing VWF pro-peptide on an anion exchange resin enables furin-mediated conversion to mature von Willebrand Factor.

Triphosgene mediates NCA synthesis from amino acids, neutralizing HCl byproducts with bases to ensure high purity and safety.

A convergent solid phase synthesis method uses pseudoproline fragments to enhance yield and purity of GLP-1 analogues.

Specific tripeptides act as intermediary agents to separate AtaA bonds from streptavidin, resolving immobilization control challenges.

Novel amino acids bearing tetrazine moieties enable rapid bioorthogonal conjugation at physiological pH.

Mutations at positions 252, 253, and 283 in GID4 increase binding affinity for N-terminal proline while reducing interference from adjacent amino acids.

Singlet oxygen activates furan to form stable hydrazone bonds, eliminating copper interference and hydrolysis risks in peptide labeling.

Protein tags bind cyclic peptide structures to verify cyclization, resolving detection reliability without increasing microarray complexity.

Segmenting plecanatide into smaller fragments for solid phase synthesis avoids cumulative coupling inefficiencies and deletion impurities.

Localized cysteine residues create intramolecular disulfide bonds that improve thermal stability without compromising antigen affinity.

Traceless affinity labels achieve site-selective protein functionalization by using cleavable linkers to discard binding groups after covalent attachment.

Partially hydrolysed cereal protein with controlled molecular weight distribution mimics milk whey properties.

Novel O6-alkylguanine-DNA alkyltransferase substrates use benzylnucleotide linkers to accelerate labeling kinetics, reducing substrate concentration needs.

Patsnap Eureka analyzes how magnetic resin mediates polypeptide conjugation to resolve low efficiency and infectivity in phage display systems.

Cation and anion exchange chromatography removes plasminogen activator contamination to ensure pharmaceutical purity.

Composite chromatography isolates recombinant OsrAAT from transgenic rice endosperm, achieving 97% purity and high yield.

A method for preparing S-Bz-MAG3 using thiol protection and amide bonding with acetone recrystallization.

Segmented breeding of hybrid corn CH892315 resolves the contradiction between genetic diversity and uniformity by standardizing inbred parents.

Block polymer coating with hydrophilic and reactive blocks suppresses nonspecific adsorption while enabling ligand binding.