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🔥 Hot Today in Peptide Research

October 12, 2026

Last updated October 12, 2026, 08:22 Israel time

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Main acceptance window for Samsung Peptide's PolyPeptide tender ends today

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Photo: Ryan McGuire / StockSnap (CC0) / own upload

Samsung Biologics, through its Swiss subsidiary Samsung Peptide AG, set the main offer period for its public tender for all publicly held shares of PolyPeptide Group AG to run from 15 September to 12 October 2026 at 4 p.m. Swiss time. The offer price is CHF 44.31 net cash per share (about CHF 1.46 billion equity value), with a minimum acceptance threshold of 66⅔% on a fully diluted basis, regulatory approvals and other customary conditions. PolyPeptide's board recommended acceptance; the largest individual shareholder undertook to tender its stake. Settlement, if conditions are met, is expected by the end of 2026.

Samsung BiologicsIndustry

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Automated OSAR platform assembles large NRPS clusters without custom DNA synthesis

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Photo: André Robillard / StockSnap (CC0) / own upload

Researchers at the Shenzhen Institute of Synthetic Biology, Jinan University and UC Berkeley reported in Nature Communications on 11 October OSAR, an automated one-step assembly and refactoring workflow that uses algorithmic primer design and yeast homologous recombination to clone large non-ribosomal peptide synthetase clusters without de novo DNA synthesis. Of 34 bacterial NRPS clusters (7–78 kb), 31 assembled successfully, and Bacillus subtilis expression yielded 29 peptides from 10 clusters, including products consistent with cryptic module skipping or premature release.

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Opsonic peptide OP18 helps macrophages clear radiation-linked extracellular traps in vitro

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Researchers at the Feinstein Institutes for Medical Research reported in Frontiers in Immunology on 12 October that the opsonic peptide OP18, which targets damage-associated molecular patterns including histone H3 and HMGB1, increased uptake of radiation-associated macrophage extracellular traps by cultured macrophages via αvβ3 integrin and endo-lysosomal trafficking. Clearance was linked to lower MET-driven mitochondrial stress, restored metabolic readouts and a trend toward higher IL-10. The study is cell-culture work.

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Gold–titania Janus particles enrich modified peptides and capture serum exosomes for MS

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Photo: Free Nature Stock / StockSnap (CC0) / own upload

Researchers at Jilin University and SCIEX reported in Analytical Chemistry on 9 October an Au–TiO₂ Janus material whose gold face enriches palmitoylated peptides via Au–S bonding while the titania face enriches phosphorylated peptides and captures serum exosomes. Coupled to mass spectrometry, the workflow showed strong selectivity for both peptide modification classes and, in a serum profiling experiment, flagged four dual-modified proteins that differed between non-small-cell lung cancer samples and controls. The paper is an analytical methods report.

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Modular synthesis builds antimicrobial peptidomimetics that disrupt bacterial membranes

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Researchers at the University of Parma and the Helmholtz Centre for Infection Research reported in the Journal of Medicinal Chemistry on 8 October a library of antimicrobial peptidomimetics inspired by magainin-related and brilacidin-like designs. Side-chain length proved important for insertion into phospholipid bilayers. A modular route produced diverse analogues for structure–activity work; compounds were tested against clinically relevant pathogens in laboratory assays, with preliminary data pointing to a membranolytic mechanism. The study is synthetic and in vitro microbiology.

Journal of Medicinal ChemistryResearch Buzz

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De novo miniproteins designed to block bacterial adhesins behind urinary tract infections

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Photo: Wil Stewart / StockSnap (CC0) / own upload

A Nature Communications paper published online on 9 October describes de novo–designed miniprotein binders to the chaperone-usher pili adhesins FimH from uropathogenic Escherichia coli and Abp from Acinetobacter baumannii. The antagonists showed high specificity and stability, disrupted recognition of host receptors and blocked biofilm formation in laboratory assays, and were evaluated in murine models of uncomplicated and catheter-associated urinary tract infection. The work is preclinical protein design.

Nature CommunicationsResearch Buzz

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Medtide completes site purchase for large-scale peptide API production

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Photo: Matthew Henry / StockSnap (CC0) / own upload

Medtide (HKEX: 3880), a peptide and oligonucleotide contract manufacturer, said in a company news post dated 10 October that, as it announced on 24 September, it has completed the acquisition of an industrial land parcel and buildings in Qiantang District, Hangzhou. The company plans to build large-scale peptide API production lines there in a first phase, with a designed annual capacity expected to be 3 to 5 metric tons, and intends to integrate an adjacent parcel in a second phase to create a manufacturing park of about 57,000 square metres. The post presents the site as part of the capacity expansion of its peptide and oligonucleotide CDMO business.

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Azapeptide submonomer synthesis moves onto a standard peptide synthesizer

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Chemists at North Carolina State University reported in the Journal of Peptide Science on 9 October that every on-resin step of the azapeptide submonomer method, from semicarbazone incorporation and alkylation to deprotection and semicarbazide acylation, now runs on a commercially available peptide synthesizer. Keys to success were a stable isocyanate precursor, reagents stable in DMF and dropping the cooling steps. The team made more than 30 azapeptides this way. The work is synthetic methodology.

Journal of Peptide ScienceResearch

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Salmonella-only protein boosts the bacterium's response to antimicrobial peptides

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Researchers at the University of Alberta reported in mBio on 9 October PalA, a small membrane lipoprotein found only in Salmonella that interacts with the sensor PhoQ and activates the PhoPQ two-component system. palA expression rose on exposure to cationic antimicrobial peptides but stayed low under low pH or low magnesium, and PalA did not activate PhoPQ systems from closely related species. The authors describe an evolutionary adaptation linking antimicrobial peptide exposure to virulence gene expression.

mBioResearch

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Simulations show how sequence steers glycine-repeat peptides folding on graphite

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Researchers at the Universidad de Talca, Stanford University and Kansas State University reported in the Journal of Chemical Information and Modeling on 9 October simulations of cyclic glycine-X repeat peptides that fold into beta-hairpins and self-assemble at the graphite-water interface. A GPGG turn best enforced the hairpin, disulfide cyclisation worked as an alternative to head-to-tail cyclisation, GT repeats folded best but assembled most weakly, and GG repeats assembled most strongly but misfolded more. The study is computational.

Journal of Chemical Information and ModelingResearch

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Mangrove bacterium yields an octapeptide active against MRSA strains in the lab

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Photo: Joe deSousa / StockSnap (CC0) / own upload

Researchers at Walailak University, Chulalongkorn University and Okayama University reported in Life on 10 October an antimicrobial octapeptide, A34 AMP, purified from a Brevibacillus isolate found in mangrove sediment and confirmed by chemical synthesis. In laboratory tests it inhibited four Staphylococcus aureus strains, three of them methicillin-resistant, with evidence pointing to membrane permeabilization, and kept its activity after heat, pH, protease and surfactant treatment. Genome mining linked it to a nonribosomal peptide synthetase cluster.

LifeResearch

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Engineered E. coli Nissle built as a non-proliferating peptide production chassis

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Photo: HD Wallpapers / StockSnap (CC0) / own upload

Researchers at King Abdullah University of Science and Technology reported in ACS Synthetic Biology on 10 October a probiotic Escherichia coli Nissle strain whose native plasmids were removed and their backbones repurposed to carry a CRISPR-Cas12 chromosome-shredding device that stops the bacteria from multiplying, plus a programmable circuit for payload expression. As a proof of concept, a cell-penetrating peptide predicted by an AI-guided pipeline was produced in the chassis and tested in human cell culture. The work is preclinical.

ACS Synthetic BiologyResearch

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