Request InfoPolyScienceFunctionalized silica microspheres that contain carboxylic acid, amine or streptavidin groups are available from Polysciences Inc. Nominal diameters are 0.5, 1 and 5 μm to accommodate specific assays. The carboxylic and amine materials are supplied as 100% solids, and the streptavidin types are offered as a 1% dispersion in water. The company says that, compared with polymer versions, the silica microspheres feature a lower refractive index, greater density for easier settling, and a hydrophilic surface that reduces the nonspecific binding of hydrophobic ligands.See full productRelated content from Photonics MediaWEBINARSPhotonics.com 3/7/2019In Vivo Medical Laser Procedures: An OverviewThis webinar, presented by OFS, will provide an overview of current in vivo medical procedures performed using lasers and optical fibers. The presentation will begin with a brief history of...Photonics.com 3/27/2024Precision Planning: Simplified Laser Scanning with Predictive SoftwareConventional controllers for laser scan systems do not allow to predict the actual path of the laser beam on the work piece. A tedious process of testing different parameters and delay settings...Photonics.com 7/20/2023Motorized and Calibrated Lenses for Machine Vision ApplicationsMany applications have benefited from motorized varifocal lenses that allow automatic or remote adjustment of focus distance and field of view. Applications may need to change the focal length or...Photonics.com 10/27/2021Fiber Optic Solutions for Medical DevicesSteve Allen provides a brief overview and examples of procedures that continue to push adoption and proliferation of optical fiber-based medical devices. From cosmetic surgery to cutting-edge sensing...