69198 Results for: "1-Bromo-2-iodoethane&pageNo=50&view=easy"

Supplier: Portwest

This superb 5-in-1 jacket system is adaptable for any work situation. Outer jacket features 2 large roomy pockets, stud adjustable cuffs and concealed attached roll-away hood. Inner jacket has fluorescent fleece sleeves, comfortable knitted cuffs and 2 side pockets. Both the inner and outer jacket have full EN ISO 20471 Class 3 certification for maximum high visibility protection and safety.

Supplier: STEMCELL Technologies

Fibroblast growth factor acidic (FGF-acidic), also known as FGF-1, is a potent activator of DNA synthesis, cell proliferation, and chemotaxis and is known to play numerous roles in development, regeneration, and angiogenesis (Jaye et al.; Galzie et al.; Presta et al.). FGF-acidic is produced by multiple cell types and is capable of activating all cells of mesodermal origin and many cells of neuroectodermal, ectodermal, and endodermal origin. It is found in large quantities in the brain, but is also expressed in hepatocytes, vascular smooth muscle cells, neurons of the CNS, skeletal muscle cells, fibroblasts, keratinocytes, endothelial cells, intestinal columnar epithelial cells, and pituitary basophils and acidophils. FGF-acidic is secreted as a disulfide-linked homodimer and is stored in complex with heparan sulfate, a requirement for its interaction with FGF receptors (Guerrini et al.; Mohammadi et al.). Internalized FGF-acidic signals through protein kinase C and promotes cell survival by inhibiting p53 and proapoptotic signaling (Bouleau et al.).

Supplier: STEMCELL Technologies

Fibroblast growth factor 8B (FGF-8B) is a member of the fibroblast growth factor (FGF) family and is an isoform of FGF-8. Cytokines in the FGF family possess broad mitogenic and cell survival activities (Folkman andamp; Klagsbrun; Kimelman andamp; Kirschner) and are involved in a variety of biological processes, including cell proliferation, differentiation, survival, and apoptosis (Folkman andamp; Klagsbrun; Klagsbrun; Rifkin andamp; Moscatelli). FGF-8B signals through FGF receptors (FGFRs) to activate PI3K and MAPK pathways. FGF-8B is broadly associated with mitogenic and cell survival activities, and regulates gastrulation, epithelial-mesenchymal transition, and later on mesenchymal to epithelial differentiation during embryonic development. FGF-8B has also been found in peripheral blood leukocytes and healthy bone marrow samples (Mattila andamp; Härkönen). FGF-8B has mitogenic effects on somatic cells in the germinal epithelium and is expressed in adult mouse ovarian cells and tissues, which suggests that it regulates maturation of oocytes and seminiferous epithelium in testis (Valve et al.).

Supplier: HAAKE

VISCOTESTER IQ PACK FOR PASTES TM-PE-P 1 * 1 SET

Supplier: STEMCELL Technologies

Tumor necrosis factor-alpha (TNF-α) is a pro-inflammatory cytokine that activates NF-κB, MAPK, and PI3K/AKT pathways. Activated T cells and macrophages are the primary producers of TNF-α in response to inflammation and infectious conditions. Many other cell types have been shown to produce TNF-α, among them B cells, NK cells, mast cells, neutrophils, dendritic cells, microglia, endothelial cells, smooth muscle cells, cardiomyocytes, and fibroblasts. TNF-α has cytotoxic effects on cancerous cells by stimulating anti-tumor immunosuppressive responses. TNF-α stimulates expression of E- and P-selectins, thus facilitating adhesion of neutrophils, monocytes, and memory T cells to activated platelets and endothelial cells (Zelová and Hošek). Other effects of TNF-α include vasodilatation and edema formation. In vitro studies of adult rat neural progenitor cells (NPCs) demonstrate that TNF-α reduces neurogenesis in dentate gyrus-derived NPCs, and promotes astrogliogenesis in subventricular zone-derived NPCs (Borsini et al.).

Supplier: Cytiva

For rapid buffer exchange/desalting of PCR products and other DNAs in a volume of 10 to 100 μl using spin column chromatography.

Supplier: Thermo Fisher Scientific

Applications: Complete and ready to use reagent for the isolation of genomic DNA from solid and liquid samples of animal and plant origin

Supplier: STEMCELL Technologies

Interleukin 21 (IL-21) is a pleiotropic cytokine that is composed of four α-helical bundles and primarily produced by natural killer T (NKT) cells, T follicular helper (Tfh) cells, and Th17 cells (Spolski and Leonard 2008). IL-21 signals via heterodimers of the IL-21 receptor (IL-21R) and the IL2RG encoded common cytokine receptor γ-chain (Parrish-Novak et al.; Ozaki K et al. 2000), and utilizes the JAK/STAT, MAPK, and PI3K pathways (Spolski and Leonard 2014). IL-21 has been shown to have a critical role in regulating immunoglobulin production and differentiation of the pro-inflammatory Th17 population of cells (Ozaki et al. 2002; Nurieva et al.). Additionally, IL-21 specifically sustains CD8+ T cell effector activity and provides a mechanism of CD4+ T cell help during chronic viral infection (Elsaesser et al.). IL-21 signaling was also found critical for the development of type 1 diabetes in NOD mice (Sutherland et al.) and control of T cell autoimmunity by regulatory B cells (Yoshizaki et al.).

Supplier: Corning

STRAIGHT CONTAINER 50ML PP NA GRADUATED H78 Ø31 & HINGED CAP NA 1 * 650 items

Supplier: Thermo Scientific

3-door gas-screen for separate access. the gas-screen is installed instead of the 1 * 1 items

Supplier: EDER KARL ROBUST

Flasche, Weithals, Material: HDPE, Inhalt: 500 ml, Hals I-Dmr: 43 mm, DmrxH: 77x145 mm, Farbe: naturfarbig, mit grünem Schraubdeckel 1 * 100 ST

Supplier: SARSTEDT

MINI REDON SET 50ML RESERVOIR ROUND DRAIN CHAMBER 6 WITH CONNECTED GUIDING NEEDLE 1 * 80 items

Supplier: Sartorius

FILTER DISC CELLULOSE PAPER MEDIUM-WIDE-PORED MEDIUM-FAST DIAMETER50MM 1 * 100 items

Supplier: STEMCELL Technologies

Leukemia inhibitory factor (LIF) is an interleukin 6 class cytokine that regulates a broad variety of developmental functions. After LIF binds to LIF receptor (LIFR), LIFR associates with gp130 and activates JAK/STAT and MAPK signaling (Auernhammer and Melmed; Suman et al.). LIFR activation of STAT3 is essential for maintaining the mouse embryonic stem cell phenotype (Niwa et al.). Produced by the endometrium, LIF plays an important autocrine and paracrine role in implantation by regulating proliferation, invasion, and differentiation of trophoblasts following blastocyst attachment (Auernhammer and Melmed; Suman et al.). Human LIF can be used for the maintenance of mouse embryonic stem cells, however mouse LIF cannot bind to the human receptor, thus rendering mouse LIF inactive (Dahéron et al.). LIF is produced by CD4+ and activated regulatory T cells, and promotes Foxp3 expression, while repressing Th17 lineage-specific genes (Metcalfe). LIF is also secreted by mesenchymal stromal cells, where it supports hematopoiesis and immune modulation (Nasef et al.).

Supplier: ProSci Inc.

The Galectin family of proteins, with specificity for Nacetyllactosaminecontaining glycoproteins, consists of beta-galactoside binding lectins containing homologous carbohydrate recognition domains (CRDs). At least 14 mammalian galectins family members, which share structural similarities in their carbohydrate recognition domains (CRD), have been identified to date. Unlike the selectin family of proteins, the carbohydrate binding specificity of galectins is calcium-independent. A common function of galectins is to cross-link structures containing N-acetyl-lactosamine located at the cell surface and within the extracellular matrix. They also possess hemagglutination activity, which is attributable to their bivalent carbohydrate binding properties. Galectins are active both intracellularly and extracellularly. Although they are localized primarily in the cytoplasm and lack a classical signal peptide, galectins can also be secreted by one or more unidentified, non-classical, secretory pathways. They have diverse effects on many cellular functions including adhesion, migration, polarity, chemotaxis, proliferation, apoptosis, and differentiation. Galectins may therefore play a key role in many pathological states, including autoimmune diseases, allergic reactions, inflammation, tumor cell metastasis, atherosclerosis, and diabetic complications. The galectins have been classified into the prototype galectins(1, 2, 5, 7, 10, 11, 13, 14), which contain one CRD and exist either as a monomer or a noncovalent homodimer. The chimera galectins(Galectin3) containing one CRD linked to a nonlectin domain, and the tandemrepeat Galectins(4, 6, 8, 9, 12) consisting of two CRDs joined by a linker peptide.Galectins lack a classical signal peptide and can be localized to the cytosolic compartments where they have intracellular functions. However, via one or more as yet unidentified nonclassical secretory pathways, galectins can also be secreted to function extracellularly. Individual members of the galectin family have different tissue distribution profiles and exhibit subtle differences in their carbohydrate-binding specificities. Each family member may preferentially bind to a unique subset of cell surface glycoproteins.

Supplier: MARIENFELD

Cover glasses 8x12 mm, thickness no. 00 ( 0,06-0,08 mm) in plastic boxes with 2x50 pcs. 1 * 1.000 items

Supplier: OMEGA BIO-TEK

The E.Z.N.A.® Total RNA kit II is designed for isolating total cellular RNA from tissues rich fibrous and fatty tissues such as skeletal muscle, heart, brain and adipose tissues. Compared to other standard silica-column procedures, the E.Z.N.A.® Total RNA kit II provides higher yield and better quality of RNA from all types of tissue. This kit combines phenol/guanidine-base lysis and the silica membrane purification of RNA technology to provide a rapid and easy method of the isolation of total RNA from any tissue sample. RNA purified using the E.Z.N.A.® Total RNA method is ready for applications such as RT-PCR, Northern blotting, poly A+ RNA (mRNA) purification, nuclease protection, and in vitro translation.

Supplier: OMEGA BIO-TEK

Plasmid isolated with traditional purification procedures normally contain high levels of endotoxins (also known as lipopolysaccharides or LPS) that can significantly interfere with transfection experiments downstream. The E.Z.N.A.® Endo-Free plasmid mini kit II integrates an efficient endotoxin removal step into the plasmid purification procedure to produce high-quality transfection grade (<0,1 EU/µg) plasmid for efficient transfection. The bacterial cells are lysed using the alkaline-SDS lysis method. The cleared cell lysate is then treated with ETR reagent to efficiently remove the endotoxins. After adjusting the binding condition, the cell lysate is applied into the HiBind® DNA column and purified DNA is eluted from the column membrane.

Supplier: Merck

The Milli-Q® SQ 240C water purification system delivers both pure reverse osmosis (RO) water and ultrapure (Type 1) water. It benefits from a flexible handset dispenser to deliver ultrapure water. It can also be equipped with a gravity valve (optional) to dispense pure RO water directly from the SQ Switch 3,5 L tank base.

Supplier: TRANE TECHNOLOGIES

Purpose-built for life science applications, FARRAR®’s ULC series including the Ultra-Low Chamber (ULC-190), Ultra-Low Chamber (ULC-328), and the new Ultra-Low Chamber (ULC-259) are the only −20 to −80 °C, forced-air, ultra-low-temperature freezers on the market with air and water-cooled options.

Supplier: Sartorius Balances

The Cubis® II laboratory balances are modular, therefore they allow to choose between applications and configurations which suit the best to the needs. These balances can be configured at the level of display, draftshields, software applications and hardware functions.

Supplier: Merck

The device utilises gel compression to extract DNA from the agarose. Centrifugal force collapses the gel structure, drives the agarose through a small orifice in the gel nebulizer and the resultant gel slurry is sprayed into the sample filter cup.

Supplier: Thermo Scientific

TSX Universal Series ULT Freezers are the pinnacle of reliability, sustainability, and innovation incorporating insights from over 80 years of experience to enhance every aspect of the system. Updates to the variable speed compressors has made the TSX Universal adaptable across all workflows. Available in four capacities, they are ENERGY STAR® certified with a 33% energy efficiency improvement, ACT labeled and produced in a Zero-Waste to Landfill certified facility.

Supplier: OMEGA BIO-TEK

The E.Z.N.A.® Blood RNA Kit is designed for the isolation of total intracellular RNA from up to 1 ml of fresh, or frozen whole blood treated with any common anticoagulant such as heparin, EDTA or acid-citrate-dextrose. The procedure completely removes contaminants and enzyme inhibitors making total RNA isolation fast, convenient and reliable. Red blood cells are selectively lysed and white cells are collected by centrifugation. After lysis of white blood cells under denaturing conditions that inactivate RNases, the lysate is homogenised with a homogeniser spin column. The sample is then applied to a HiBind® spin column. Cellular debris and other contaminants such as haemoglobin are effectively washed away and high-quality RNA is finally eluted in DEPC treated water.

Supplier: OMEGA BIO-TEK

E.Z.N.A.® Cycle-Pure kits are designed for the rapid purification of single or double-stranded DNA from PCR or other enzymatic reactions. The purification procedure completely removes primers, nucleotides, enzymes, salts, and other impurities from DNA samples. E.Z.N.A.® MicroElute Cycle-Pure kits are specifically intended to purify PCR samples with a small elution volume of 10 to 15 µl. The E-Z® 96 Cycle-Pure kit procedure allows for the parallel purification of up to 96 PCR samples from multiple amplifications. The E-Z® 96 Cycle-Pure kit utilises multiwell technology for manual or fully automated high throughput purification.

Supplier: OMEGA BIO-TEK

Modified from the E.Z.N.A.® Plant RNA kit, the E.Z.N.A.® Fungal RNA kit uses an improved buffer system that is more efficient for fungal samples. This kit provides convenient and rapid methods for the isolation of total RNA from a variety of fungal species. Rather, the method involves a simple and rapid precipitation step for removal of much of the polysaccharides and phenolic compounds commonly found in fungal tissues. In combination with HiBind® RNA spin columns, this method permits purification of high quality RNA from as much as 200 mg tissue. The system is also efficient enough to purify total RNA from as little as 10 mg of tissue or 100 cells. Purified RNA can be used for many downstream applications such as RT-PCR, northern blotting, Poly(A)+ mRNA purification, and differential display.

Supplier: OMEGA BIO-TEK

This second generation plasmid miniprep kit yields 40 to 70 µg of high-quality DNA in less than 30 minutes using the same format as the E.Z.N.A.® Plasmid Mini Kit I. The increased DNA binding capacity of the HiBind® Mini Column II allows culture volumes of up to 15 ml to be used, thus bridging the gap between mini and midi prep protocols. Plasmid DNA can be readily and quickly isolated for most downstream applications such as routine screening, restriction enzyme digestion, and DNA sequencing.

Supplier: OMEGA BIO-TEK

The E.Z.N.A.® Blood DNA Maxi Kit is specially designed for large scale isolation of genomic DNA. The kit provides a rapid purification of genomic DNA from up to 10 ml whole blood samples. Sample sources include fresh and frozen whole blood treated with common anticoagulants such as citrate, EDTA and heparin. In addition plasma, serum, buffy coat, bone marrow, lymphocytes, platelets, and body fluid samples can also be used. Phenol/chloroform extractions, and time-consuming steps such as precipitation with isopropanol have been eliminated. DNA purified using the E.Z.N.A.® Blood DNA Maxi method is free of contaminants and enzyme inhibitors making it suitable for most downstream applications such as PCR, Southern blotting and restriction enzyme digestion of high-quality total DNA.

Supplier: OMEGA BIO-TEK

The E.Z.N.A.® HP Total RNA Isolation Kit provides a rapid and easy method for RNA isolation from a small amount of cultured eukaryotic cells or tissues. This kit allows single or simultaneous processing of multiple samples in less than 40 minutes. Normally, 1×10⁷ eukaryotic cells or 25 to 30 mg tissue can be used in a single experiment. There is no need for phenol/chloroform extractions, time-consuming steps such as CsCl gradient ultracentrifugation, or precipitation with isopropanol or LiCl. RNA purified using the E.Z.N.A.® HP Total RNA method is ready for applications such as RT-PCR, RT-qPCR, Northern blotting, poly A+ RNA (mRNA) purification, nuclease protection, and in vitro translation.

Supplier: CROSSTEX

Spore Wire Inoculated Carriers for Monitoring Hydrogen Peroxide/Plasma Processes, Geobacillus stearothermophilus Cell Line 7953, Bra ided Steel Wires Each 40 mm in length and <2 mm in Diameter, Packaged in Bulk 100 per box, 106 population level, ISO 1 * 1 Each