97566 Results for: "2,2,4-Trimethylpentane&pageNo=25&view=easy"

Supplier: MP Biomedicals

2,3,5-Triphenyltetrazolium Chloride is a redox indicator. In the TTC assay (also known as TTC test or tetrazolium test), TTC is used to differentiate between metabolically active and inactive tissues. The white compound is enzymatically reduced to red TPF (1,3,5-triphenylformazan) in living tissues due to the activity of various dehydrogenases (enzymes important in oxidation of organic compounds and thus cellular metabolism), while it remains as white TTC in areas of necrosis since these enzymes have been either denatured or degraded.
2,3,5-Triphenyltetrazolium Chloride is commonly used in biochemical experiments especially to indicate cellular respiration. TTC has been employed in autopsy pathology to assist identification of post-mortem myocardial infarctions. Healthy viable heart muscle will stain deep red from the cardiac lactate dehydrogenase; while areas of potential infarctions will be more pale. Useful indicator for reducing substances

Supplier: Cytiva

MabSelect SuRe™ is composed of a rigid, high-flow agarose matrix and alkali-tolerant rProtein A ligand. The ligand has been engineered to provide greater stability than conventional protein A-based media in the alkaline conditions used in CIP protocols. This enhanced alkali stability improves process economy and product quality.

Supplier: Brand

PP. Eight connected 0,2 or 0,15 ml PCR tubes with attached, flat individual caps.

Supplier: CAMAG

Seal for 25ml and 50ml syringes 1 * 1 items

Supplier: PRECISION DYNAMICS TIMEM

LABELLING TAPE AQUA 25MMX12,7M 1 * 1 Roll

Supplier: MP Biomedicals

Poly-lysine is a polycation which binds to DNA, red cell membrane and any negatively charged protein. When adsorbed to the culture surface, poly-lysine increases the number of positively charged sites available for cell binding. A compromise between the easier to use lower molecular weight products and the extremely viscous higher molecular weights would be the products in the range of 70,000-150,000.
It is typically used as a coating substrate for culture dishes, slides, etc. It enhances electrostatic interaction between negatively charged ions of the cell membrane and the culture surface. Both the D- and L- form of the poly-lysine can be used as a coating substrate since poly-lysine is a nonspecific attachment factor for cells; however, certain cells can digest poly-lysine. In this case, poly-D-lysine should be used as the attachment factor so that the cells are not disrupted by excessive uptake of L-lysine.
Other uses for poly-lysine have been reported as well:
• Conjugation to methotrexate for increased drug transport.
• Microencapsulation of islets.
• Use in simple reproducible procedure for chromosomal preparations from a variety of tissues.
• Immobilation of living cells in biocompatible semipermeable microcapsules.
• In the preparation of polycationic beads.
• Conjugation to albumin and horseradish peroxidase to enhance cellular uptake.
Poly-D-lysine hydrobromide is a synthetic amino acid that enhances cell adhesion to solid substrates. It has additionally been shown to eliminate prion proteins from infected cells.

Supplier: GERING

HYDROMETER 1,280-1,340 25C 160MM 1 * 1 items

Supplier: RPB SAFETY

The RPB Z-Link respirator with FR shoulder cape is the world's most comfortable (fully padded) and versatile Industry respirator. Providing the highest respiratory protection available (TH3) the Z-Link system also provides hard hat protection, eye and face protection and hearing protection.

Supplier: RPB SAFETY

The RPB Z-link respirator with FR face seal, is the world's most comfortable (fully padded) and versatile industry respirator. Providing the highest respiratory protection available (TH3), the Z-Link system also provides hard hat protection, eye and face protection and hearing protection.

Supplier: VWR Chemicals

The peqGOLD DNase I Digest Kit is optimised for use with peqGOLD RNA extraction protocols. Normally DNase I digestion is not required for RNA purified with peqGOLD RNA Mini Columns as our silica-based spin column technology efficiently removes the majority of DNA without enzymatic digestion. However, certain sensitive RNA applications may require further DNA removal.

Supplier: Thermo Fisher Scientific

The Pierce™ yeast DNA extraction reagent kit uses Y-PER yeast protein extraction reagent to quickly extract and purify genomic and plasmid DNA from yeast.

Supplier: MP Biomedicals

Dimethyl Sulfoxide is ideal for use as a cryoprotectant. Also used in chemical reactions, in polymerase chain reactions (PCR) as a PCR cosolvent to help improve yields, especially in long PCR, and as a cryoprotectant vitrification agent for the preservation of cells, tissues and organs. DMSO is used in cell freezing media to protect cells from ice crystal-induced mechanical injury. It is used for frozen storage of primary, sub-cultured, and recombinant heteroploid and hybridoma cell lines, embryonic stem cells (ESC), and hematopoietic stem cells. DMSO is frequently used in the combinations with BSA or fetal bovine serum (FBS). Used to enhance dermal absorption of many chemicals. A solvent for many organic and inorganic compounds including fats, carbohydrates, dyes, resins, and polymers. Used in antifreeze or hydraulic fluids. A cryopreservative for cell cultures. Used in the oxidation of thiols and disulfides to sulfonic acids.

Dimethyl sulfoxide (DMSO) is a highly polar aprotic organic reagent that has exceptional solvent properties for organic and inorganic chemicals.

Physical Apppearance: Liquid
Viscosity: 1.1 centipoises (27 °C)
Vapor Density: 2.7 (vs air)
Vapor Pressure: 0.55 hPa at 20 °C, 0.42 mmHg (20 °C)
Refractive Index: n20/D 1.479(lit.)
Solubility: Soluble in water (1 mL DMSO + 1 mL H2O), methanol, acetone, ether, benzene, chloroform

Supplier: PRECISION DYNAMICS TIMEM

LABELLING TAPE CHARTR.25MMX12,7M 1 * 1 Roll

Supplier: HAMILTON BONADUZ

calibrate with certificate 1 * 1 items

Supplier: GERING

HYDROMETER 0,940-1,000 25C 160MM 1 * 1 items

Supplier: CUSTOM MADE CHEMICALS LAB

7 COMPONENTS MIX 1 * 5 Ampoul

Supplier: Brand

PP. Eight connected 0,2 ml tubes and domed or flat caps in strips of eight.

Supplier: GERING

HYDROMETER 1,060-1,120 25C 160MM 1 * 1 items

Supplier: MORGAN ADVANCED MATERIALS HALD

Alsint tiles square 50x25x4mm 1 * 1 items

Supplier: WATERS

AccQ-Tag Ultra - Derivitization Kit (250 analyses) 1 * 1 KIT

Supplier: MORGAN ADVANCED MATERIALS HALD

PIPE PYTHAGORAS 32X25X700MM 1 * 10 items

Supplier: Testo

PRESSURE METER TESTO 521-3 0-2,5HPA 1 * 1 items

Supplier: ProSci Inc.

Hemagglutinin Monoclonal Antibody: Influenza A virus is a major public health threat, killing more than 30,000 people per year in the USA. Novel influenza virus strains caused by genetic drift and viral recombination emerge periodically to which humans have little or no immunity, resulting in devastating pandemics. Influenza A can exist in a variety of animals, but it is in birds that all subtypes can be found. These subtypes are classified based on the combination of the virus coat glycoproteins hemagglutinin (HA) and neuraminidase (NA) subtypes. HA interacts with host cell surface proteins containing oligosaccharides with terminal sialyl residues. Its extracellular region has two domains (HA1 and HA2); HA1 is cleaved from the main hemagglutinin protein by the host immune system. During 1997, an H5N1 avian influenza virus was determined to be the cause of death in 6 of 18 infected patients in Hong Kong. This more recent virulent strain of H5N1 is now seen in Africa and Europe, as well as in Southeast Asia. There is some evidence of human to human spread of this virus, but it is thought that the efficiency of this type of transmission is low. Virus isolated from a human infected with the H5N1 strain in 1997 could bind to oligosaccharides from human as well as avian sources, indicating its species-jumping ability.

Supplier: Thermo Fisher Scientific

In order to maintain cellular viability during the freezing process, certain cells such as protist, mammalian, and plant cells require precise control of the freezing rate in order to minimize the detrimental effects of undercooling and the heat liberated during the phase change process from water to ice. The Thermo Scientific™ CryoMed™ Controlled-Rate Freezers (CRFs) are designed with reliability, protection, and data traceability in mind for sample preparation and GMP production needs.

Supplier: ProSci Inc.

Recently, a number of cytokines belonging to the interleukin (IL)-17 family have been identified. These are termed as IL-17B, IL-17C and IL-17E. IL-17 is a potent proinflammatory cytokine that plays roles in a number of diseases including rheumatoid arthritis , multiple sclerosis , and promotion of tumor growth. IL-17B, C, and E like IL-17 are able to induce proinflammatory responses. However, they do not bind to the IL-17 receptor suggesting that additional IL-17R related receptor might exist. Receptor for IL-17B and IL-17E has been independently isolated by Shi, et al and Lee, et al. and has been designated as EV127 (in mouse) and IL-17Rh1 (in human), respectively. IL-17E induces activation of NF-κB pathway and like IL-17 also induces production of IL-8. The IL17 proteins are a family of potent cytokines that act to induce proinflammatory responses. Studies have shown that IL17E binds strongly to IL17RB. Receptor binding of ligand has been shown to lead to the activation of nuclear factor kappa-B and production of IL8. Exposure of mice to IL17 resulted in a Th-2 like response characterized by increased serum IgE, IgG1 and IgA levels, blood eosinophilia, increased lymphocytes and neutrophils, and pathological changes in the tissues that included eosinophilic infiltrates, increased mucus production, B-lymphocyte hyperplasia and epithelial cell hyperplasia/hypertrophy.

Supplier: MP Biomedicals

Storage: Store at +4 °C, store under nitrogen
Glutathione is the major low molecular weight thiol compound of the living plant or animal cell. It is a tripeptide with a gamma peptide linkage between the amine group of cysteine (which is attached by normal peptide linkage to a glycine) and the carboxyl group of the glutamate side-chain. It is an antioxidant, preventing damage to important cellular components caused by reactive oxygen species such as free radicals and peroxides. The sulfhydryl (thiol) group (SH) of cysteine serves as a proton donor and is responsible for the biological activity of glutathione.
Glutathione suppresses human immunodeficiency virus expression in chronically infected monocytic cells. It is a useful tripeptide involved in many aspects of metabolism, including transport of g-glutanyl amino acids and reductive cleavage of disulfide bonds.
Endogenous antioxidant that plays a major role in reducing reactive oxygen species formed during cellular metabolism and the respiratory burst. Glutathione-S-transferase catalyzes the formation of glutathione thioethers with xenobiotics, leukotrienes, and other molecules that have an electrophilic center. Glutathione also forms disulfide bonds with cysteine residues in proteins. Via these mechanisms, it can have the paradoxical effect of reducing the efficacy of anti-cancer agents.

Supplier: EDWARDS HIGH VACUUM METTLER

EDW CLAMPING RING NW25 1 * 1 items

Supplier: Socorex Isba

SOC SCREW FOR 811 20-25L 1 * 1 items

Supplier: witeg Labortechnik

CLIP FOR JOINTS STAINLESS STEEL ST 1 * 1 items

Supplier: Biotium

EvaGreen® Dye and high-performance dye-based qPCR master mixes containing EvaGreen® qPCR dye, Cheetah™ HotStart Taq Polymerase, and Forget-Me-Not™ tracking dye. Available with 2-colour tracking or pre-mixed with low or high ROX.