49524 Results for: "Lasers and Light Sources&amp"

Supplier: Promega Corporation

The NAD/NADH-Glo Assay is a bioluminescent, homogeneous single-reagent-addition assay for detecting total oxidized and reduced nicotinamide adenine dinucleotides and determining their ratio in biological samples or in defined enzyme reactions.

Supplier: Peprotech

IFN-γ is an acid-labile interferon produced by CD4 and CD8 T lymphocytes as well as activated NK cells. IFN-γ receptors are present in most immune cells, which respond to IFN-γ signaling by increasing the surface expression of class I MHC proteins. This promotes the presentation of antigen to T-helper (CD4+) cells. IFN-γ signaling in antigen-presenting cells, and antigen-recognizing B and T lymphocytes, regulates the antigen-specific phases of the immune response. Additionally, IFN-γ stimulates a number of lymphoid cell functions, including the anti-microbial and anti-tumor responses of macrophages, NK cells, and neutrophils. Human IFN-γ is species-specific and is biologically active only in human and primate cells. Recombinant Human IFN-γ is a 16.8 kDa protein containing 144 amino acid residues.

Supplier: Peprotech

Proteins of this family play an important role in inducing non-specific resistance against a broad range of viral infections. They also affect cell proliferation and modulate immune responses. Produced by peripheral blood leukocytes and lymphoblastoid cells, IFN-α is an acid-stable molecule that signals through IFN-α/βR, which is also used by IFN-β. Both IFNs have similar anti-viral activity and regulate expression of MHC class I antigens. IFN-α contains four highly conserved cysteine residues that form two disulfide bonds, one of which is necessary for biological activity. PeproTech’s Recombinant Human IFN-β is a 20.0 kDa protein containing 166 amino acid residues. Due to glycosylation, IFN-β has an approximate MW of 22.3 kDa based on SDS-PAGE gel and Mass Spectrometry.

Supplier: Peprotech

IL-4 is a pleiotropic cytokine that regulates diverse T and B cell responses including cell proliferation, survival and gene expression. Produced by mast cells, T cells and bone marrow stromal cells, IL-4 regulates the differentiation of naive CD4+ T cells into helper Th2 cells, characterized by their cytokine-secretion profile that includes secretion of IL-4, IL-5, IL-6, IL-10, and IL-13, which favor a humoral immune response. Another dominant function of IL-4 is the regulation of immunoglobulin class switching to the IgG1 and IgE isotypes. Excessive IL-4 production by Th2 cells has been associated with elevated IgE production and allergy. Recombinant Human IL-4 is a 15.1 kDa globular protein containing 130 amino acid residues. Manufactured using all Animal-Free reagents.

Supplier: Peprotech

IFN-γ is an acid-labile interferon produced by CD4 and CD8 T lymphocytes, as well as activated NK cells. IFN-γ receptors are present in most immune cells, which respond to IFN-γ signaling by increasing the surface expression of class I MHC proteins. This promotes the presentation of antigen to T-helper (CD4+) cells. IFN-γ signaling in antigen-presenting, cells and antigen-recognizing B and T lymphocytes, regulates the antigen-specific phases of the immune response. Additionally, IFN-γ stimulates a number of lymphoid cell functions, including the anti-microbial and anti-tumor responses of macrophages, NK cells, and neutrophils. Human IFN-γ is species-specific and is biologically active only in human and primate cells. Recombinant Murine IFN-γ is a 15.6 kDa protein containing 134 amino acid residues.

Supplier: Molecular Devices

FlexStation® 3 Benchtop Multi-Mode Microplate Reader combines Molecular Devices’ SpectraMax® M5e Multi-Mode Microplate Reader performance with an integrated 8- or 16-channel pipettor into one compact benchtop reader.

Supplier: Thermo Fisher Scientific

Accurately monitor conductivity, TDS, salinity, resistivity, and temperature with the Orion™ Star™ A322 Conductivity Portable Meter for challenging field tests.

Supplier: BONE CLONES HOLDINGS

Examine anatomical differences based on diet.

Supplier: Fujifilm Irvine Scientific

Heparin-binding epidermal growth factor-like growth factor (HB-EGF) is a member of the epidermal growth factor (EGF) family and is expressed by monocytes and macrophages. HB-EGF is the predominant growth factor involved in epithelialization during wound healing. HB-EGF signals through the receptor tyrosine kinase ErbB2 to maintain adult heart homeostasis, and promotes cardiac valve development through binding in high affinity to the epidermal growth factor receptor (EGFR). HB-EGF binds the the ErbB4 receptor tyrosine kinase to mediate implantation of the human blastocyst. HB-EGF also functions as a potent mitogen for fibroblasts and smooth muscle cells.

Supplier: Thermo Fisher Scientific

Accurately monitor dissolved oxygen (optical/polarographic) and temperature with the Orion™ Star™ A323 RDO/DO Portable Meter for challenging field testing.

Supplier: DRG International

An enzyme immunoassay for the quantitative measurement of dehydroepiandrosterone (DHEA) in serum and plasma.

Supplier: Peprotech

Activin A is a TGF-β family member that exhibits a wide range of biological activities, including regulation of cellular proliferation and differentiation, and promotion of neuronal survival. Elevated levels of Activin A in human colorectal tumors and in postmenopausal women have been implicated in colorectal and breast cancers, respectively. The biological activities of Activin A can be neutralized by inhibins and by the diffusible TGF-β antagonist, follistatin. Activin A binds to the two forms of activin receptor type I (Act RI-A and Act RI-B) and two forms of activin receptor type II (Act RII-A and Act RII-B). Activins are homodimers or heterodimers of different β subunits. They are produced as precursor proteins with an amino terminal propeptide that is cleaved to release the C-terminal bioactive ligand. Recombinant Human/Murine/Rat Activin A is a 26.0 kDa disulfide-linked homodimer of two βA chains, each containing 116 amino acid residues.

Supplier: Heathrow Scientific

Industry's first high-speed centrifuge and 3 l magnetic stirrer combined into one unit. Enables a substantial cost savings for labs by not having to purchase two pieces of equipment, a stirrer and a centrifuge, because the MagFuge® does it all.

Supplier: Biotium

Live-or-Dye™ Fixable Viability Staining Kits are designed for discrimination between live and dead cells during flow cytometry or microscopy.

Supplier: Janitorial Supplies

Dispatch® hospital cleaner disinfectant towels with bleach are intermediate-level hospital disinfectant wipes. They are ready to use, one step cleaner-disinfectant wipes containing a 1:10 bleach dilution.

Supplier: Cytiva

SPARTAN syringe filters with regenerated cellulose (RC) membrane provide reproducible filtration of organic and aqueous solutions for high performance and ultra-high performance liquid chromatography (HPLC and UHPLC) sample preparation.

Supplier: Protexer

The original BootieButler® Shoe Cover is an economical anti-skid and anti-static shoe cover that serves well in a variety of situations

Supplier: Wards

These half size torsos are a great starter torso for any classroom. Available in three different part counts all of these models show basic human anatomy and systems. The most basic figures illustrate general structure of organs and systems and are cast with a cutaway skull exposing a cast brain. The Dissectible head version also shows more advanced head and neck structure, as well as a half brain removable from inside the skull. The most advanced version shows all of the same items as the dissectible head version and also includes a removable female insert, and shows musculature on the left side.

Supplier: Rockland Immunochemical

Antibody Anti-Sheep F(ab')2 IgG (H&L) phycoerythrin conjugated is suitable for immunomicroscopy and flow cytometry or FACS analysis as well as other antibody based fluorescent assays requiring extremely low background levels, absence of F(c) mediated binding, lot-to-lot consistency, high titer and specificity., lot-to-lot consistency, high titer and specificity.

Supplier: Invitrogen

Thermo Scientific Pierce Sulfo-SANPAH is a hetero-bifunctional crosslinker that contains an amine-reactive N-hydroxysuccinimide (NHS) ester and a photoactivatable nitrophenyl azide.

Supplier: Cloud-Clone

Polyclonal Antibody to Nuclear Factor Kappa B (NFkB), derived from recombinant NFkB (Gln352~Phe439), is reactive with Rat/Human/Pig.

Supplier: Cloud-Clone

Polyclonal Antibody to Ferritin, Heavy Polypeptide (FTH), derived from recombinant FTH (Met1~Ser181), is reactive with Human/Pig.

Supplier: Cloud-Clone

This assay has high sensitivity and excellent specificity for detecting Human IgG (Immunoglobulin G). The assay range is from 0.78 to 50 ng/ml (Sandwich kit) with a sensitivity of 0.25 ng/ml. There is no detectable cross-reactivity with other relevant proteins. Activity loss rate and accelerated stability test ect have been conducted to guarantee the best performance of the products after long storage and delivery.

Supplier: Motic

The BA210S biological compound microscope is designed for advanced biology students, teachers, doctors, and lab technicians. Every aspect of these microscopes contributes to making your daily work easier. The ergonomic shape of the stand and the comfortability of the different heads enables fatigue-free viewing for many hours.

Supplier: Cloud-Clone

This assay has high sensitivity and excellent specificity for detecting Human CTSB (Cathepsin B). The assay range is from 0.312 to 20 ng/ml (Sandwich kit) with a sensitivity of 0.122 ng/ml. There is no detectable cross-reactivity with other relevant proteins. Activity loss rate and accelerated stability test ect have been conducted to guarantee the best performance of the products after long storage and delivery.

Supplier: Antibodies.com

Bovine Plasminogen ELISA kit is a sandwich Enzyme-Linked Immunosorbent Assay (sELISA) designed for the in vitro quantitative determination of bovine Plasminogen in serum, plasma, tissue homogenates, and other biological fluids.

Supplier: Cloud-Clone

Polyclonal Antibody to S100 Calcium Binding Protein A8 (S100A8), derived from recombinant S100A8 (Met1~Glu89), is reactive with Human/Pig.

Supplier: Enzo Life Sciences

A Real-time Mitochondrial membrane Potential Assay with Superior Sensitivity

Supplier: Biotium

5(6)-CFDA, SE (full name: 5-(and-6)-Carboxyfluorescein diacetate, succinimidyl ester, also known as CFSE) is a useful fluorescent tracer that can passively diffuse into cells and covalently label intracellular proteins, resulting in long-term cell labeling.

Supplier: Electron Microscopy Sciences

Handle delicate miniature objects without scratching, breaking or pinching. The system avoids contamination of parts and performs functions that tweezers does such as sorting, picking up, holding, carrying, and transferring. As well it is an alter-native way for handling cover slips without the use of forceps.