2309 Results for: "Water Systems"

Supplier: Advanced Biomatrix

Polyethylene Glycol Diacrylate (PEGDA) is a 3500 MW blank slate hydrogel that gels rapidly at room temperature in the presence of a photoinitiator and light. PEGDA is hydrophilic, elastic and can be customized to include a variety of biological molecules.

Supplier: MP Biomedicals

Alcohol dehydrogenases are a group of dehydrogenase enzymes that occur in many organisms. It is a metalloenzyme containing four tightly bound zinc atoms per molecule. Each subunit also contains a second zinc atom (conformational zinc), which stabilizes the enzyme’s tertiary structure. Per subunit, there are two distinct active site sulfhydryl groups which can be distinguished on the basis of differential reactivity with iodoacetate and butyl isocyanate. A histidine residue is considered to have an essential role.

Supplier: ARBOR ASSAYS MS

The Formaldehyde Fluorescent Detection Kit from Arbor Assays provides a sensitive, high-throughput method to detect formaldehyde in urine and tissue culture media (TCM). Using a proprietary fluorescent reagent, the assay quantifies formaldehyde levels down to 0.715 µM with a broad detection range of 3.125 to 200 µM. With a simple 30-minute workflow and low background fluorescence, the assay is ideal for studying metabolic processes, toxicology, and cell culture contamination. The kit uses a kinetic fluorescent readout, providing reliable and reproducible results suitable for both research and screening applications.

Supplier: PEAK SCIENTIFIC MS

The Precision Hydrogen Standard generators are designed to provide the gas needed for GC detectors requiring hydrogen fuel gas, such as FID whilst the Precision Hydrogen Trace generators are capable of supplying GC carrier gas as well as detector gases for multiple GCs.

Supplier: Prosci

The CD233 gene is located on chromosome 17q21-q22 and is part of the anion exchanger (AE) family. CD233 is expressed in the erythrocyte plasma membrane where it functions as a chloride/bicarbonate exchanger involved in carbon dioxide transport from tissues to lungs. The protein comprises two domains that are structurally and functionally distinct. The N-terminal 40kDa domain is located in the cytoplasm and acts as an attachment site for the red cell skeleton by binding ankyrin. The glycosylated C-terminal membrane-associated domain contains 12-14 membrane spanning segments and carries out the stilbene disulphonate-sensitive exchange transport of anions. The cytoplasmic tail at the extreme C-terminus of the membrane domain binds carbonic anhydrase II. CD233 associates with the red cell membrane protein glycophorin A and this association promotes the correct folding and translocation of CD233. CD233 is predominantly dimeric but forms tetramers in the presence of ankyrin. Many CD233 mutations are known in man and these mutations can lead to two types of disease; destabilization of red cell membrane leading to hereditary spherocytosis, and defective kidney acid secretion leading to distal renal tubular acidosis. Other CD233 mutations that do not give rise to disease result in novel blood group antigens, which form the Diego blood group system. Southeast Asian ovalocytosis (SAO, Melanesian ovalocytosis) results from the heterozygous presence of a deletion in the CD233 protein and is common in areas where Plasmodium falciparum malaria is endemic. One CD233 null human is known also with very severe anemia and nephrocalcinosis [PROW].

Supplier: MP Biomedicals

Trypan Blue is a blue acid dye with a strong affinity for cellulose containing substrates such as cotton; less affinity for proteinaceous materials. Trypan blue solution may be used in trypan blue based cytotoxicity and proliferation assays.
Trypan Blue is used as a vital dye which is especially important because it is taken up by the reticuloendothelial system. Clark describes assays for the study of teratogenic action of trypan blue on embryonic tissues using Davis and Sauter's fluorescence method and for the staining of collagen, including very fine fibrils, muscle and cornified epithelium using the Van Gieson method. Trypan blue is also recommended for use in dye exclusion procedures for viable cell counting. Non-viable cells will up-take trypan blue at a faster rate than viable cells.

Supplier: MP Biomedicals

Storage: -20°C, desiccate
This is an ultrapure NAD, chromatographically purified to remove trace inhibitors.
β-NAD, a pyridine nucleotide and biologically active form of nicotinic acid, is a coenzyme necessary for the catalytic reaction of certain enzymes. It occurs in living cells primarily in the oxidized state. Serves as a coenzyme of the dehydrogenases, especially in the dehydrogenation of primary and secondary alcohols. NAD usually acts as a hydrogen acceptor, forming NADH which then serves as a hydrogen donor in the respiratory chain.
Many metabolites and enzymes of biological interest are present in tissues at low concentrations. With the use of β-NAD as a catalyst intermediate and several enzymes in a multistep system, known as enzyme cycling, much greater sensitivity for detection of these components is achieved. The reduced form, β-NADH, is fluorescent whereas β-NAD is not. This difference in fluorescence provides a sensitive fluorescent measurement of the oxidized or reduced pyridine nucleotides at concentrations down to 10-7 M.
Electron acceptor. β-NAD is a carrier for hydride ion, forming b-NADH. Hydride ion is enzymatically removed from a substrate molecule by the action of dehydrogenases such as malic dehydrogenase and lactic dehydrogenase. Such enzymes catalyze the reversible transfer of a hydride ion from malate or lactate to b-NAD to form the reduced product, b-NADH. Unlike b-NAD which has no absorbance at 340 nm, b-NADH absorbs at 340 nm (EmM = 6.22). The increase in absorbance at 340 nm with the formation of b-NADH is the basis for measurement of activity of many enzymes.

Supplier: Defibtech

Defibtech AEDs offer industry-leading innovation, simplicity, and elegance.

Supplier: TECNIPLAST USA, INC.

The 2154F rat/hamster cage can comfortably house five rats of standard size and is available in polycarbonate or polysulfone materials.

Supplier: Bel-Art Products, a Part of SP

Made from optical quality polycarbonate plastic material, these plain form hydrometers are durable and shatterproof making them ideal in situations where rough handling or contamination could be an issue, such as in the food or beverage industries.

Supplier: DRG International

An enzyme immunoassay for the quantitative determination of thyroid stimulating hormone (TSH) in serum.

Supplier: VWR International

State-of-the-art aerospace technology delivers high platinum performance.

Supplier: PEAK SCIENTIFIC MS

The Precision Hydrogen Trace 500 generator is designed primarily for GC carrier gas use, and can also be used for detectors requiring hydrogen fuel gas such as FID and FPD. One generator is capable of supplying multiple GC instruments.

Supplier: Boster Biological Technology

Rabbit IgG polyclonal antibody for Versican core protein(VCAN) detection. Tested with WB, IHC-P in Human;Mouse;Rat.

Supplier: DRG International

An enzyme immunoassay for the quantitative determination of human growth hormone (HGH) concentration in serum.

Supplier: ARBOR ASSAYS MS

The Arg8-Vasopressin (AVP) Chemiluminescent ELISA Kit from Arbor Assays is a highly sensitive competitive immunoassay for quantifying AVP in serum, plasma, and tissue culture media. The assay uses a goat anti-rabbit IgG-coated plate, a rabbit polyclonal antibody, and an AVP-peroxidase conjugate for precise detection. With a sensitivity of 0.88 pg/ml, this chemiluminescent assay provides enhanced signal detection and accuracy. The overnight incubation ensures optimal binding and high reproducibility, making this kit ideal for neuroscience, endocrinology, and renal physiology research.

Supplier: Thermo Fisher Scientific

For the collection, transport, and examination of fecal specimens

Supplier: Boster Biological Technology

Rabbit IgG polyclonal antibody for MHC class I antigen(HLA-C) detection. Tested with WB, IHC-P, IHC-F, ICC, FCM in Human;Mouse;Rat.

Supplier: Prosci

The transport of molecules between the nucleus and the cytoplasm in eukaryotic cells is mediated by the nuclear pore complex (NPC) which consists of 60-100 proteins and is probably 120 million daltons in molecular size. Small molecules (up to 70 kD) can pass through the nuclear pore by nonselective diffusion; larger molecules are transported by an active process. Most nuclear proteins contain short basic amino acid sequences known as nuclear localization signals (NLSs). KPNA3 is a protein similar to certain nuclear transport proteins of Xenopus and human. The predicted amino acid sequence shows similarity to Xenopus importin, yeast SRP1, and human RCH1 (KPNA2), respectively. The similarities among these proteins suggest that karyopherin alpha-3 may be involved in the nuclear transport system.The transport of molecules between the nucleus and the cytoplasm in eukaryotic cells is mediated by the nuclear pore complex (NPC) which consists of 60-100 proteins and is probably 120 million daltons in molecular size. Small molecules (up to 70 kD) can pass through the nuclear pore by nonselective diffusion; larger molecules are transported by an active process. Most nuclear proteins contain short basic amino acid sequences known as nuclear localization signals (NLSs). KPNA3, encodes a protein similar to certain nuclear transport proteins of Xenopus and human. The predicted amino acid sequence shows similarity to Xenopus importin, yeast SRP1, and human RCH1 (KPNA2), respectively. The similarities among these proteins suggests that karyopherin alpha-3 may be involved in the nuclear transport system. Publication Note: This RefSeq record includes a subset of the publications that are available for this gene. Please see the Entrez Gene record to access additional publications.

Supplier: Prosci

CLEC4M is a transmembrane receptor and is often referred to as L-SIGN because of its expression in the endothelial cells of the lymph nodes and liver. It is involved in the innate immune system and recognizes numerous evolutionarily divergent pathogens ranging from parasites to viruses, with a large impact on public health. The protein is organized into three distinct domains: an N-terminal transmembrane domain, a tandem-repeat neck domain and C-type lectin carbohydrate recognition domain. The extracellular region consisting of the C-type lectin and neck domains has a dual function as a pathogen recognition receptor and a cell adhesion receptor by binding carbohydrate ligands on the surface of microbes and endogenous cells. The neck region is important for homo-oligomerization which allows the receptor to bind multivalent ligands with high avidity. Variations in the number of 23 amino acid repeats in the neck domain of this protein are common and have a significant impact on ligand binding ability. This gene is closely related in terms of both sequence and function to a neighboring gene (GeneID 30835; often referred to as DC-SIGN or CD209). DC-SIGN and L-SIGN differ in their ligand-binding properties and distribution. Alternative splicing results in multiple variants.This gene encodes a type II integral membrane protein that is 77% identical to CD209 antigen, a HIV gp120-binding protein. This protein, like CD209, efficiently binds both intercellular adhesion molecule 3 (ICAM3) and HIV-1 gp120, and enhances HIV-1 infection of T cells. This gene is mapped to 19p13.3, in a cluster with the CD209 and CD23/FCER2 genes. Multiple alternatively spliced transcript variants have been found for this gene, but the biological validity of some variants has not been determined.

Supplier: SenseAnywhere

Designed for ultra-low temperatures, the smart Pt100 Probe with a digital SenseAnywhere Bus interface excels in cryogenic monitoring down to –200 °C. Its class A ceramic sensor delivers accurate measurements across a broad range. Calibration is simplified, as only the Pt100 Probe, not the connected AiroSensor 20-20-43, requires it for precise results.

Supplier: PEAK SCIENTIFIC MS

The Precision Hydrogen Trace generators have been designed primarily for GC carrier gas use, and can also be used for detectors, requiring a hydrogen on demand solution for fuel gas such as FID and FPD. One generator is capable of supplying multiple GC instruments.

Supplier: Boster Biological Technology

Rabbit IgG polyclonal antibody for DNA-binding protein Ikaros(IKZF1) detection. Tested with WB, IHC-P in Human;Mouse;Rat.

Supplier: Prosci

VSX1 contains a paired-like homeodomain and binds to the core of the locus control region of the red/green visual pigment gene cluster. VSX1 may regulate expression of the cone opsin genes early in development. Mutations in this gene can cause posterior polymorphous corneal dystrophy (PPCD) and keratoconus. The protein encoded by this gene contains a paired-like homeodomain and binds to the core of the locus control region of the red/green visual pigment gene cluster. The encoded protein may regulate expression of the cone opsin genes early in development. Mutations in this gene can cause posterior polymorphous corneal dystrophy (PPCD) and keratoconus. Two transcript variants encoding different isoforms have been found for this gene.

Supplier: Electron Microscopy Sciences

The 7000smz-2 unit with a Z-axis deflection of Sub-Micron and a blade advance controllable to 10 microns/second

Supplier: Thermo Fisher Scientific

Use the Orion Star T940 all-in-one titrator for flexible pH, redox and ion concentration titrations including equivalence point titrations, preset pH or mV endpoint titrations plus multiple known addition (MKA) mode for automated known addition of various ions.

Supplier: Bulldog Bio

PNGase F PRIME is a mutant recombinant PNGase F cloned from Flavobacterium meningosepticum and expressed and purified from E. coli. The proprietary changes made to PNGase F have been shown to have unique characteristics when compared to other commercially-available sources of PNGase F. Data generated by independent labs shows that PRIME works on native glycoproteins and serum glycoproteins in minutes at room temperature. Glycan analysis of the digestion products shows that PNGase F PRIME digestion led to more complete glycan release and also allowed for the cleavage of glycans not released by the commercially-available enzymes when used at the same concentrations with the same digestion conditions. This advancement benefits applications that seek to understand glycobiology in a natural milieu. Preliminary data indicates that PNGase F PRIME has a higher specificity towards complex (tri and tetra-antennary) sialylated structures compared to the commercially sourced enzyme. Additionally, the work presented in this Analytical Chemistry paper utilized PNGase F PRIME for all in situ tissue work as the commercially-available PNGase enzymes did not work on native tissue to allow glycan recognition.

Supplier: Bulldog Bio

PNGase F PRIME is a mutant recombinant PNGase F cloned from Flavobacterium meningosepticum and expressed and purified from E. coli. The proprietary changes made to PNGase F have been shown to have unique characteristics when compared to other commercially-available sources of PNGase F. Data generated by independent labs shows that PRIME works on native glycoproteins and serum glycoproteins in minutes at room temperature. Glycan analysis of the digestion products shows that PNGase F PRIME digestion led to more complete glycan release and also allowed for the cleavage of glycans not released by the commercially-available enzymes when used at the same concentrations with the same digestion conditions. This advancement benefits applications that seek to understand glycobiology in a natural milieu. Preliminary data indicates that PNGase F PRIME has a higher specificity towards complex (tri and tetra-antennary) sialylated structures compared to the commercially sourced enzyme. Additionally, the work presented in this Analytical Chemistry paper utilized PNGase F PRIME for all in situ tissue work as the commercially-available PNGase enzymes did not work on native tissue to allow glycan recognition.

Supplier: Restek

Restek Rt®-Alumina BOND columns are highly selective for C1 to C5 hydrocarbons and separate all saturated and unsaturated hydrocarbon isomers above ambient temperatures.

Supplier: 3M Healthcare

3M™ CT series cartridge filter housings are three-piece, all-metal housings with ring nut closures, designed to securely hold a range of filter types to meet your industrial and process filtration needs. Available in both 304 stainless steel and 316 stainless steel material construction to meet various application needs.