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Sigma unveils FP2 full-frame camera with new sensor, flip screen, Nov. 11 launch

Sigma has announced the FP2, a follow-up to its original fp full-frame mirrorless camera, priced at $2,199 for the body and available November 11th. The camera features a new 24.5-megapixel partially stacked BSI sensor enabling faster readout, up to 20fps stills, 6K/60fps video, bird-detection autofocus, an articulating LCD screen, and longer battery life, though it is roughly six grams heavier than its predecessor.

Study details lab methods for probing chemical reactivity at microplastic surfaces

Researchers describe materials and methods used to study how microplastics such as polystyrene, polyethylene and PVC interact chemically with water at their surfaces. The methods include characterizing microplastic surface purity with X-ray photoelectron spectroscopy and using fluorescent probes, dyes and labeled DNA to track reactive activity and molecule binding at plastic-water interfaces.

New drug-delivery method uses molecular binding to trigger targeted cancer drug release

Researchers designed a chemical strategy that links a targeting molecule's binding action directly to the release of an anticancer payload, rather than relying solely on enzymatic cleavage. The team synthesized and validated compounds targeting fibroblast activation protein (FAP) and other markers, testing reaction rates and specificity using UPLC-mass spectrometry and antibody-based assays on proteins including PD-L1, DPPIV, and cathepsin B.

Study details enzymes marine bacteria use to break down fucoidan seaweed polysaccharides

Researchers assembled a detailed methods protocol using fucoidans from multiple seaweed species, including Fucus vesiculosus and Laminaria hyperborea, alongside custom LC-MS internal standards and PMP derivatization reagents. They also formulated three seawater-mimicking bacterial growth media to enrich, isolate and cultivate marine microbes capable of degrading these complex sulfated polysaccharides.

Gray-market peptide sellers use AI-generated fake reviews to look trustworthy

A report examines the booming gray market for injectable peptide drugs, showing how sellers like Qingdao Sigma build slick, professional-looking websites using AI coding tools. These sites feature fake TrustPilot-style review pages filled with AI-generated testimonials, despite the companies having no actual presence on TrustPilot itself.