Cell & Tissue Analysis Understanding the structural and functional relationships of cells and tissues is critical to advancements in key research disciplines, including molecular biology, genetics, reproductive function, immunology, cancer and neurobiology.  Key components of cell and tissue analysis are cell viability and proliferation, cell signaling pathways, cell cycle analysis, and cell structure.  Invitrogen has a broad portfolio of reagents and kits for cell and tissue analysis, including Molecular Probes® Fluorescence Products and technologies as well as Dynal® Bead-based Solutions for cell isolation and expansion.  From antibodies and stem cell research products to benchtop instruments like the Countess® Cell Counter and Qubit™ Fluorometer, Invitrogen has the tools essential for cellular analysis research. For more information, refer to the Cell & Tissue Analysis portal on our website.		Transfection Selection Tool Transfection of DNA, siRNA, oligonucleotides, and RNA into mammalian cells is a critical step in many research efforts of the biomedical scientific community including gene silencing using RNAi, transient gene expression studies, protein/antibody production, and generation of stable cell lines.  To simplify the transfection optimization process, Invitrogen has created a transfection selection tool that provides information on recommended transfection reagents with optimized protocols for over 120 cell lines.  Invitrogen offers a wide range of transfection reagents for your specific needs. For more information and cell type specific protocols, refer to Transfection Selection Tool