69198 Results for: "Flame+Photometers&pageNo=50&view=list"

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: Sartorius

FILTER DISC CELLULOSE PAPER VERY-NARROW-PORED VERY SLOW DIAMETER-50MM 1 * 100 items

Supplier: HUBER

Immersion thermostats form the basis of many different combinations with polycarbonate or stainless steel bath vessels. All models are fitted with a powerful pressure/suction pump and meet the requirements of Safety Class III (FL) for use with flammable fluids. Temperatures down to −30 °C can be achieved in combination with a refrigerated bath. A screw clamp is included allowing the thermostats to be easily mounted on any vessels. A pump adapter for external temperature control and cooling coils for a cooling water connection are available as optional accessories.

Supplier: Ahlstrom-Munksjö

HemaSep™ is a rapid, easy to use and cost-effective device to achieve high yield and purity of plasma/serum from whole blood.

Supplier: Cytiva

NICK™ columns were originally designed for purification of nick-translated DNA fragments but are also suitable for separation of any labelled probe from unincorporated labelled nucleotides.

Supplier: STEMCELL Technologies

Fibroblast growth factor 10 (FGF-10) is a member of the fibroblast growth factor (FGF) family predominantly expressed by mesenchymal fibroblasts during embryonic development (Emoto et al.; Igarashi et al.). It binds with high affinity to fibroblast growth factor receptor 2-IIIb (FGFR2-IIIb), and also has a weaker affinity for FGFR1-IIIb (Beer et al.). FGF-10 and FGF-7 have similar receptor binding properties and target cell specificities but are differentially regulated by components of the extracellular matrix (Emoto et al.; Igarashi et al.). FGF-10 has been shown to mediate epithelial-mesenchymal interactions, which are essential to lung development (Sekine et al; Ware and Matthay). FGF-10 also has a role in mobilisation and proliferation of lung-resident mesenchymal stem cells (MSCs) and protection and repair against acute lung injury (Tong et al.; Ware and Matthay), as well as endodermal differentiation of human pluripotent stem cells to insulin-producing pancreatic-like cells (Takeuchi et al.).

Supplier: STEMCELL Technologies

Interleukin 1 beta (IL-1β) is synthesised as an inactive precursor protein or pro-IL-1β. This precursor is cleaved intracellularly by caspase 1 (IL-1β convertase) to form the active form of the protein that is later secreted (Allan et al.). IL-1β binds to IL-1 receptor and activates intracellular signaling via the MAPK or NF-kB pathway. IL-1β is released by monocytes, tissue macrophages, and dendritic cells in response to infection or injury and induces expression of acute-phase proteins. It also promotes the infiltration of inflammatory and immunocompetent cells from the circulation into the extravascular space and affected tissues, by stimulating the expression of adhesion molecules on endothelial cells. IL-1β also affects other immune cells; for example, it co-stimulates T cell functions together with antigen or mitogen. It also stimulates Th17 differentiation and B cell proliferation in an IL-6-dependent manner. Mice deficient in IL-1β do not show phenotypical differences from wild-type mice; however, they have a reduced response to inflammation, suggesting that IL-1β plays a key role in inflammatory diseases (Dinarello).

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: Sartorius

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

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: 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: Merck

HT MEDIA SUPPLEMENT (50X) HYBRI-MAX*GAMM A-IRRADIATE 1 * 10 Vial

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: 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: Amarell

Hydrometer, DIN 12791/similar to BS 718, L20, 0,9200-0,9400:0,0002g/cm , ref. temp. 20C, without therm., 430mm long, suitable for g overnment verification 1 * 1 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: Cytiva

illustra™ MicroSpin™ S-300 HR columns designed for rapid purification of PCR products (>100 bp) from unincorporated primers (<20-mers) and nucleotides using spin-column chromatography.

Supplier: Thermo Fisher Scientific

Choose Thermo Scientific™ SureSTART™ 2 ml glass screw top vials, performance level 2, to ensure high quality data with an uninterrupted workflow in high-throughput applications using GC, HPLC/UHPLC, and single or triple quadrupole MS systems. Use level 2 vials for routine QA/QC applications, where the analyte levels are achievable or close to the method detection level. Available in clear and amber glass, these 2 ml screw top vials have very low metal content, extractables, and leachables and conform to high standards so that you can to meet your regulatory requirements. They are specification certified to ensure their physical dimensions and autosampler compatibility.

Supplier: G-Biosciences

GET™ DNA Template is a spin column format kit suitable for the preparation of DNA templates from blood, cells, fungal and animal tissue samples. The isolated genomic DNA is suitable for PCR and other downstream applications.

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: 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: 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.