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Applications2026-07-15

PP Particles and Their Applications

Polypropylene (PP) particles—also known as PP microspheres—are engineered spherical polymer particles that have quietly become indispensable across biomedical research, diagnostics, industrial manufacturing, and materials science. While polypropylene is best known as a ubiquitous thermoplastic for packaging, automotive components, and consumer goods, its particulate form offers a unique combination of properties that distinguishes it from other polymer microspheres.As a semi-crystalline thermopl

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Applications2026-06-25

​PVC Particles and Their Applications

PVC particles are spherical polymer microspheres or nanoparticles composed of polyvinyl chloride. The chlorine atoms along the PVC backbone impart chemical resistance to acids, alkalis, and organic solvents, along with thermal stability, mechanical strength, and electrical insulation. High-quality PVC microspheres exhibit monodispersity with polydispersity indices as low as 5%, ensuring consistent performance in assays and calibration. Their optical clarity and low aggregation further enhance ut

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Applications2026-06-18

Magnetic Nanoparticles and Their Applications

Magnetic nanoparticles are nanoscale materials—typically 1 to 500 nanometers in diameter—that exhibit magnetic properties. The most widely studied and commercially important MNPs are iron oxide nanoparticles, primarily magnetite (Fe3O4) and maghemite (γ-Fe2O3).Superparamagnetism: The Defining FeatureThe defining characteristic of most biomedical MNPs is superparamagnetism. Below a critical size (typically <20 nm), these particles exhibit strong magnetization when placed in an external magnetic f

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Applications2026-06-17

PS Particles and Their Applications

Polystyrene (PS) particles are monodisperse polymer microspheres synthesized from styrene monomers that have become essential components across diverse scientific and industrial fields. Their uniform size distribution, excellent chemical stability, and versatile surface chemistry make them ideal for applications ranging from lateral flow immunoassays and flow cytometry calibration to drug delivery, environmental remediation, and mineral processing. At BOT Bioparticles, we specialize in providing

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Applications2026-06-10

Mastering Colloidal Gold: Handling, Storage, and Applications

Understanding the Properties of Colloidal GoldThe Origin of LSPR and Size-Tunable Optical BehaviorColloidal gold nanoparticles exhibit their characteristic colors due to LSPR, a phenomenon where conduction electrons on the nanoparticle surface collectively oscillate in resonance with incident light. This resonance produces intense absorption and scattering at specific wavelengths, and its peak position is exquisitely sensitive to the size and shape of the nanoparticle, as well as the refractive

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