97567 Results for: "Gellan+gum&pageNo=25&view=list"

Supplier: Priorclave

SAFETY VALVE COMPLETE 1/2 INCH (15MM) 1 * 1 items

Supplier: TRESTON

Middle plate 90-130/150 L=150 1 * 1 items

Supplier: Brand

PP. Eight connected 0,2 ml tubes with attached domed cap strips.

Supplier: Thermo Fisher Scientific

Slide-A-Lyzer MINI Dialysis devices, 3,5K MWCO, are disposable polypropylene cups with integrated, low-binding membranes for dialysis and high recovery of proteins and macromolecules >3,5 kDa in volumes from 10 µl to 2 ml. They were developed as a convenient means for dialysing small-volume samples of nucleic acids and proteins without undue sample loss. Low molecular weight contaminant removal, buffer exchange, desalting, equilibrium dialysis, micro conjugation reactions, and concentration can be accomplished with these devices.

Supplier: Cayman Chemical

Lupeol, a dietary triterpene found in certain fruits, vegetables, and medicinal plants, has potent anti-inflammatory, anticarcinogenic, antimutagenic, and antimalarial activity. It suppresses the growth of hepatocellular carcinoma cell lines SMMC7721 and HepG2 with IC50 values of 45 and 48.5 μM and melanoma cell lines Mel 928 and Mel 1241 with IC50 values of 75 and 72 μM.¹'² At 0.76 g/kg lupeol causes a significant decrease in the blood pressure of stroke-prone hypertensive rats and reduces expression of hepatic genes involved in triglyceride and cholesterol synthesis.³ It also has significant anti-inflammatory effects at 50 mg/kg in a carrageenan-induced edema model, inhibiting neutrophil migration.⁴

1. Tarapore, R.S.,Siddiqui, I.A.,Saleem, M., et al. Specific targeting of Wnt/β-catenin signaling in human melanoma cells by a dietary triterpene lupeol. Carcinogenesis 31(10), 1844-1853 (2010).
2. He, Y.,Liu, F.,Zhang, L., et al. Growth inhibition and apoptosis induced by lupeol, a dietary triterpene, in human hepatocellular carcinoma cells. Bio.Pharm.Bull. 34(4), 517-522 (2011).
3. Ardiansyah,Yamaguchi, E.,Shirakawa, H., et al. Lupeol supplementation improves blood pressure and lipid metabolism parameters in stroke-prone spontaneously hypertensive rats. Bioscience, Biotechnology, and Biochemistry 76(1), 183-185 (2012).
4. Lucetti, D.L.,Lucetti, E.C.,Bandeira, M.A., et al. Anti-inflammatory effects and possible mechanism of action of lupeol acetate isolated from Himatanthus drasticus (Mart.) Plumel. Journal of Inflammation 7(60), 1-11 (2010).

Supplier: Hach

Robust and intuitive portable meters, instilling confidence in reporting and managing your results.

Supplier: DWK Life Sciences

Tube screw 100x16mm, GPI 15-415, borosilicate. 1 * 1 items

Supplier: CUSTOM MADE CHEMICALS LAB

STANDARD SOLUTION 54 COMPONENTS 1 * 1 Ampoul

Supplier: PRECISION DYNAMICS TIMEM

TIME TAPE 1 X 216 YELLOW IMPRINTED 1 * 6 Roll

Supplier: Sampling Systems

FDA SILICONE SEAL TO SUIT 25L MINIDRUM 1 * 1 items

Supplier: TRESTON

Middle plate 90-130/150 L=300 1 * 1 items

Supplier: Hach

COPPER FREE REAGENT POWDER PILLOWS 1 * 100 items

Supplier: VARIAN

TUBING SS REG 25MX1/4INCHX4.4 EA=25MR 1 * 1 items

Supplier: CUSTOM MADE CHEMICALS LAB

33 COMPONENTS MIX 1 * 10 Ampoul

Supplier: LGC Standards PROMOCHEM

N-TETRACONT. 20 MG AND N-DECANE IN HEXAN 1 * 100 mL

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: Bioss

S100A8 is a calcium- and zinc-binding protein which plays a prominent role in the regulation of inflammatory processes and immune response. It can induce neutrophil chemotaxis and adhesion. Predominantly found as calprotectin (S100A8/A9) which has a wide plethora of intra- and extracellular functions. The intracellular functions include: facilitating leukocyte arachidonic acid trafficking and metabolism, modulation of the tubulin-dependent cytoskeleton during migration of phagocytes and activation of the neutrophilic NADPH-oxidase. Activates NADPH-oxidase by facilitating the enzyme complex assembly at the cell membrane, transferring arachidonic acid, an essential cofactor, to the enzyme complex and S100A8 contributes to the enzyme assembly by directly binding to NCF2/P67PHOX. The extracellular functions involve proinfammatory, antimicrobial, oxidant-scavenging and apoptosis-inducing activities. Its proinflammatory activity includes recruitment of leukocytes, promotion of cytokine and chemokine production, and regulation of leukocyte adhesion and migration. Acts as an alarmin or a danger associated molecular pattern (DAMP) molecule and stimulates innate immune cells via binding to pattern recognition receptors such as Toll-like receptor 4 (TLR4) and receptor for advanced glycation endproducts (AGER). Binding to TLR4 and AGER activates the MAP-kinase and NF-kappa-B signaling pathways resulting in the amplification of the proinflammatory cascade. Has antimicrobial activity towards bacteria and fungi and exerts its antimicrobial activity probably via chelation of Zn(2+) which is essential for microbial growth. Can induce cell death via autophagy and apoptosis and this occurs through the cross-talk of mitochondria and lysosomes via reactive oxygen species (ROS) and the process involves BNIP3. Can regulate neutrophil number and apoptosis by an anti-apoptotic effect; regulates cell survival via ITGAM/ITGB and TLR4 and a signaling mechanism involving MEK-ERK. .

Supplier: Brand

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

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: MACHEREY-NAGEL

QUANTOFIX CHLORINE 500 TEST STRIPS 1 * 100 Tests

Supplier: IKA

Tool kit for dismantling T25 homogeniser dispersing tools,IKA 1 * 1 items

Supplier: Cytiva

illustra™ MicroSpin™ S-400 HR columns designed for rapid purification of PCR products (>200 bp) from unincorporated primers (<32-mers) and nucleotides using spin-column chromatography.

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: ProSci Inc.

FBXO25 is a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein belongs to the Fbxs class. Three alternatively spliced transcript variants encoding distinct isoforms have been found for this gene.This gene encodes a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbxs class. Three alternatively spliced transcript variants encoding distinct isoforms have been found for this gene.

Supplier: HIRSCHMANN

Flask, volumetric, capacity 25ml, class A, USP certificate 1 * 1 items

Supplier: Hospidex

Microsyringe 25µl GC standard with glass handle and fixed needle 1 * 1 items

Supplier: HIRSCHMANN

VOL.FLASK 25ML NS10/19 A HOLLOW GLASS 1 * 2 items

Supplier: TOSOH BIOSCIENCE

TSKGel BUTYL-NPR Column, Custom Made Column, 4.6mmID x 10cm 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.