15278 Results for: "Gas+Generators"

Supplier: ProSci Inc.

HIF1 (hypoxia-inducible factor 1), a heterodimeric transcription factor complex central to cellular response to hypoxia, consists of two subunits (alpha and beta) which are basic helix-loop-helix proteins of the PAS (Per, ARNT, Sim) family. Expression of HIF-1 alpha is regulated by cellular oxygen level alterations as well as in oxygen-independent manner via different cytokines (through the PI3K-AKT-mTOR pathway), growth factors, oncogenic activation, or loss of tumor suppressor function etc. In normoxic cells, HIF-1 alpha is proline hydroxylated leading to a conformational change that promotes its binding to the VLH (von Hippel Lindau) protein E3 ligase complex; ubiquitination and followed by rapid proteasomal degradation. Hypoxia as well as chemical hydroxylase inhibitors (desferrioxamine, cobalt etc.) inhibit HIF-1 alpha degradation and lead to its accumulation in the cells, whereas, contrastingly, HIF-1 beta/ARNT (AhR nuclear translocator) remains stable under both conditions. Besides their critical role in hypoxic response, HIFs regulates the transcription of genes responsible for angiogenesis, erythropoiesis/iron-metabolism, glucose metabolism, cell proliferation/survival, adipogenesis, carotid body formation, B lymphocyte development and immune reactions.

Supplier: ProSci Inc.

This antibody is specific to Complement 4d (C4d) and it reacts with the secreted as well as cell-bound protein. C4d is a degradation product of the activated complement factor C4b. Complement 4b is typically activated by binding of antibodies to specific target molecules. Following activation and degradation of the C4 molecule, thio-ester groups are exposed, which allow transient, covalent binding of the degradation product C4d to endothelial cell surfaces and extracellular matrix components of vascular basement membranes near the sites of C4 activation. The presence of C4d in peritubular capillaries is a key indicator for acute humoral (i.e. antibody-mediated) rejection of kidney, heart, pancreas and lung allografts. As an established marker of antibody-mediated acute renal allograft rejection and its proclivity for endothelium, this component can be detected in peritubular capillaries in chronic renal allograft rejection as well as hyperacute rejection, acute vascular rejection, acute cellular rejection, and borderline rejection. C4d has been shown to be a significant predictor of transplant kidney graft survival. C4d antibody, combined with antibody to C3d, can be utilized as a tool for diagnosis of allograft rejection that may warrant a prompt and aggressive anti-rejection treatment.

Supplier: Thermo Orion

These bench top meters with dissolved oxygen / RDO module meet most challenging applications for dissolved oxygen and temperature. The meters offer interchangeable measurement modules that allow multiple users to customise four separate channels to meet their specific requirements.

Supplier: Thermo Orion

This meter offers interchangeable measurement modules that allow multiple users to customise four separate channels to meet their specific requirements.

Supplier: Thermo Orion

These bench top meters with conductivity module meet most challenging applications for conductivity, total dissolved solids (TDS), salinity, resistivity and temperature. The meters offer interchangeable measurement modules that allow multiple users to customise four separate channels to meet their specific requirements.

Supplier: ProSci Inc.

This antibody is specific to Complement 4d (C4d) and it reacts with the secreted as well as cell-bound protein. C4d is a degradation product of the activated complement factor C4b. Complement 4b is typically activated by binding of antibodies to specific target molecules. Following activation and degradation of the C4 molecule, thio-ester groups are exposed, which allow transient, covalent binding of the degradation product C4d to endothelial cell surfaces and extracellular matrix components of vascular basement membranes near the sites of C4 activation. The presence of C4d in peritubular capillaries is a key indicator for acute humoral (i.e. antibody-mediated) rejection of kidney, heart, pancreas and lung allografts. As an established marker of antibody-mediated acute renal allograft rejection and its proclivity for endothelium, this component can be detected in peritubular capillaries in chronic renal allograft rejection as well as hyperacute rejection, acute vascular rejection, acute cellular rejection, and borderline rejection. C4d has been shown to be a significant predictor of transplant kidney graft survival. C4d antibody, combined with antibody to C3d, can be utilized as a tool for diagnosis of allograft rejection that may warrant a prompt and aggressive anti-rejection treatment.

Supplier: 3M

Cross chest buckle assembly for central front fall arrest attachment point - optimised position on body. Revolving torso adjusters (patented) for quick and easy harness fit and adjustment. Auto-locking quick connect buckles secure contact with webbing, reducing the need to readjust.

Supplier: ProSci Inc.

This mAb recognises a protein of 41 kDa, which is identified as TDP2, or ETS1 associated protein II. It is a member of a superfamily of divalent cation-dependent phosphodiesterases. The encoded protein associates with CD40, tumor necrosis factor (TNF) receptor-75 and TNF receptor associated factors (TRAFs), and inhibits nuclear factor-kappa-B activation. This protein has sequence and structural similarities with APE1 endonuclease, which is involved in both DNA repair and the activation of transcription factors. DNA repair enzyme that can remove a variety of covalent adducts from DNA through hydrolysis of a 5'-phosphodiester bond, giving rise to DNA with a free 5' phosphate. catalyses the hydrolysis of dead-end complexes between DNA and the topoisomerase 2 (TOP2) active site tyrosine residue. Hydrolyzes 5'-phosphoglycolates on protruding 5' ends on DNA double-strand breaks (DSBs) due to DNA damage by radiation and free radicals. The 5'-tyrosyl DNA phosphodiesterase activity can enable the repair of TOP2-induced DSBs without the need for nuclease activity, creating a 'clean' DSB with 5'-phosphate termini that are ready for ligation. Has also 3'-tyrosyl DNA phosphodiesterase activity, but less efficiently and much slower than TDP1. May also act as a negative regulator of ETS1 and may inhibit nuclear factor-kappa-B activation.

Supplier: VELP SCIENTIFIC

The UDK Series distillers are designed to meet the most challenging demands and requirements for diverse applications, according to international standards: Kjeldahl nitrogen TKN, proteins, ammoniacal nitrogen, nitric nitrogen (Devarda), phenols, TVBN and volatile acids, cyanides, and alcohol content. Five different UDK models are available with different automation levels to match any laboratory requirement of automation and throughput. A complete range of distillers featuring exclusive technologies to meet any laboratory requirement for the determination of analytes in different fields of application.

Supplier: ProSci Inc.

Melanocytes produce organelles called melanosomes which produce melanin, the pigment that gives color to skin, hair, eyes, scales and feathers. gp100 was identified in an attempt to clone the gene Tyrosinase, an enzyme required for melanin synthesis. Further testing determined that gp100 is a melanoma-specific protein and is responsible for melanosome maturation, facilitating the transition from amorphous rounded vesicles to fibrillary ellipsoid organelles.
Metastatic amelanotic melanoma can often be confused with a variety of poorly differentiated carcinomas, large cell lymphomas, and sarcomas using H & E stains alone. It is also difficult to differentiate melanoma from spindle cell carcinomas and various types of mesenchymal neoplasms. Clone HMB45 gp100 antibody stains fetal and neonatal melanocytes, junctional and blue nevus cells, and malignant melanoma. It also stains angiomyolipomas, tumors most commonly associated with the kidney. Intradermal nevi, normal adult melanocytes, and non-melanocytic cells are negative. This gp100 antibody does not stain tumor cells of epithelial, lymphoid, glial, or mesenchymal origin.

Supplier: Heidolph Instruments GmbH & Co.KG

Powerful electronic stirrers that feature a smooth start operation which prevents spills and splashing media. The speed ramps up slowly until set speed has been reached. Both models feature safe start and stop of operation via an intuitive glass slide touch panel to avoid accidental start-up. An overtemperature sensor shuts off the unit in dangerous heat-up situations, ideal for unattended continuous operation. All units are designed for continuous 24-hour operation, including challenging high viscosity applications in polymer research. High torque levels give better mixing results in less time, maintenance-free motors reduce repairs and down time. Hei-TORQUE Value 400 and Hei-TORQUE Precision 400 units have two speed gears.

Supplier: ProSci Inc.

Cytokeratin 8 is the product of the KRT8 gene and one of the most abundant keratins. The KRT8 gene is a member of the type II keratin family clustered on the long arm of chromosome 12. Cytokeratin 8 participates in cellular differentiation and signal transduction, protects against apoptosis, stress and injury, and helps maintain cellular structural integrity. It is primarily found in the non-squamous epithelia and is present in majority of adenocarcinomas and ductal carcinomas. It is absent in squamous cell carcinomas. Specific combinations of cytokeratins are associated with certain epithelial cells, and therefore useful in the characterization of poorly differentiated carcinoma. Hepatocellular carcinomas are defined by the use of antibody that recognises only cytokeratin 8 and 18. Keratin 8 exists on several types of normal and neoplastic epithelia, including many ductal and glandular epithelia such as colon, stomach, small intestine, trachea, and esophagus as well as in transitional epithelium. Antibody to Cytokeratin 8 does not react with skeletal muscle or nerve cells. Epithelioid sarcoma, chordoma, and adamantinoma show strong positivity corresponding to that of simple epithelia (with antibodies against Keratin 8, 18 and 19). Reportedly, Cytokeratin 8 antibody is useful for the differentiation of lobular (ring-like, perinuclear) from ductal (peripheral-predominant) carcinoma of the breast.

Supplier: ProSci Inc.

Immunoglobulin gamma (IgG) is the most common class of antibody in blood and extracellular fluid. Approximately 75% of serum antibodies in humans are IgG. There are four immunoglobulin gamma subclasses: one, two, three and four. IgG1 is the most common, with 68% of all gamma class antibodies being G1, and G4 is the least common at 4%. Gamma class antibodies are found primarily in the secondary immune response, class switching from IgM and IgD. They are the only class of antibody that can cross the placenta, and along with IgA secreted in breast milk, provide the neonate with humoral immunity before immune system development occurs.

This antibody recognises a protein of 75 kDa identified as the gamma heavy chain of human immunoglobulins. It does not cross-react with alpha, mu, epsilon, or delta heavy chains, T-cells, monocytes, granulocytes, or erythrocytes. The IgG antibody is useful in the identification of leukemias, plasmacytomas, and certain non-Hodgkin's lymphomas. The most common feature of these malignancies is the restricted expression of a single heavy chain class. Demonstration of clonality in lymphoid infiltrates indicates that the infiltrate is clonal and therefore malignant.

Supplier: OMEGA BIO-TEK

The Mag-Bind® Plant DNA DS 96 Kit is designed for difficult samples (DS) which are hard to lyse or contain high amounts of polysaccharides and polyphenols. The system uses a CTAB-based lysis buffer which does not require organic solvents. The proprietary binding system prevents inhibitors from binding to the magnetic beads. The wash buffer system further removes polysaccharides, phenolic compounds and enzyme inhibitors from plant tissue lysate. An optional rebinding step is included with the kit but most samples do not require the additional treatment.

Supplier: Azbil Telstar Technologies

The ergonomically designed BiOptima Class II microbiological safety cabinets ensure optimum efficiency and high-level energy savings. BiOptima provides operator protection with the inflow air barrier, product protection thanks to HEPA-filtered laminar downflow in the working area and environmental protection through the exhaust HEPA filter. BiOptima Cyto is available in 120 or 180 cm (4 or 6’) widths as standard.

Supplier: ProSci Inc.

This antibody recognises an intra-cytoplasmic marker antigen which shows a very high degree of specificity for plasma cells. This marker protein is present in normal as well as neoplastic plasma cells. Plasma cells, which are large lymphocytes derived from an antigen-specific B cell, secrete antibodies and are responsible for humoral immunity. Plasma cells differentiate from B cells upon stimulation by CD4+ lymphocytes. The B cell acts as an antigen-presenting cell (APC), consuming an offending pathogen, which is taken up by the B cell by phagocytosis and broken down within proteosomes. Plasma cells contain basophilic cytoplasm; their nucleus contains heterochromatin organized in a characteristic cartwheel arrangement. This marker antibody superbly recognises normal and neoplastic plasma cells in routine formalin/paraffin tissue sections. It is of potential value in identifying myeloma or plasmacytoma in bone marrow or other tissues. It also helps differentiate lympho-plasmacytoid lymphoma from lymphocytic and follicular lymphoma. Note that this plasma cell marker antibody is not suitable for staining frozen tissues.

Supplier: ProSci Inc.

This antibody recognises a protein of 33-37 kDa, identified as CD20 (Workshop V; Code CD20.12). The antibody recognises the extracellular domain of the protein. The epitope is similar to or identical to that recognized by other CD20 antibodies including Leu-16 and B1. This antibody can be used for immunophenotyping of leukemia and malignant cells, B lymphocyte detection in peripheral blood, Bcell localization in tissues and B lymphocyte purification by immunosorbent methods. CD20 is a non-Ig differentiation antigen of Bcells and its expression is restricted to normal and neoplastic Bcells, being absent from all other leukocytes and tissues. It is expressed by pre Bcells and persists during all stages of Bcell maturation but is lost upon terminal differentiation into plasma cells. Protein passes through the membrane 4 times with both ends in cytoplasm and exposes one short and one longer loop to the external environment. CD20 is not glycosylated in resting Bcells and its cytoplasmic domains are differentially phosphorylated upon activation. It acts as a calcium channel involved in Bcell activation and cell cycle progression.

Supplier: Quantabio

Rapid extraction and purification of high-quality total RNA from cultured cells or tissue.

Supplier: OMEGA BIO-TEK

Pre-scripted solution for purification of high-quality DNA from blood, saliva, cultured cells, or fresh or frozen tissue.

Supplier: OMEGA BIO-TEK

Mag-Bind® Blood and Tissue DNA Kit CE IVD offers a versatile method for the isolation of high-quality DNA from a wide variety of samples including fresh or frozen animal cultured cells and tissues, up to 250 µl whole blood, buccal swabs, up to 500 µl saliva, and dried blood spots.

Supplier: ProSci Inc.

This antibody is specific for a 17-26 kDa protein, which is identified as the cytokine TNF alpha (Tumor Necrosis Factor alpha). It can be expressed as a 17 kDa free molecule, or as a 26 kDa membrane protein. It is a protein secreted by lipopolysaccharide-stimulated macrophages, and causes tumor necrosis when injected into tumor bearing mice. TNF alpha is believed to mediate pathogenic shock and tissue injury associated with endotoxemia. It exists as a multimer of two, three, or five non-covalently linked units, but shows a single 17 kDa band following SDS PAGE under reducing conditions. TNF alpha is closely related to the 25 kDa protein Tumor Necrosis Factor beta (lymphotoxin), sharing the same receptors and cellular actions. TNF alpha causes cytolysis of certain transformed cells, being synergistic with interferon gamma in its cytotoxicity. Although it has little effect on many cultured normal human cells, TNF alpha appears to be directly toxic to vascular endothelial cells. Other actions of TNF alpha include stimulating growth of human fibroblasts and other cell lines, activating polymorphonuclear neutrophils and osteoclasts, and induction of interleukin 1, prostaglandin E2 and collagenase production. TNF alpha is currently being evaluated in treatment of certain cancers and AIDS Related Complex.

Supplier: G-Biosciences

The EZ Yeast™ Plasmid Prep Kit is designed for the rapid isolation of plasmids from yeast patches or yeast grown in small liquid cultures. The kit is adapted from the alkaline lysis of E. coli, by providing modified alkaline lysis buffers and LongLife™ Zymolyase®, a highly stable enzyme.

Supplier: ProSci Inc.

Twenty human keratins are resolved with two-dimensional gel electrophoresis into acidic (pI 6.0) subfamilies. This antibody detects acidic (Type I or LMW) and basic (Type II or HMW) cytokeratins: 67 kDa (CK1); 64 kDa (CK3); 59 kDa (CK4); 58 kDa (CK5); 56 kDa (CK6); 52 kDa (CK8); 56.5 kDa (CK10); 50 kDa (CK14); 50 kDa (CK15); 48 kDa (CK16); 40 kDa (CK19). Many studies have shown the usefulness of keratins as markers in cancer research and tumor diagnosis. It is a broad spectrum anti pan-cytokeratin antibody, which differentiates epithelial tumors from non-epithelial tumors e.g. squamous vs. adenocarcinoma of the lung, liver carcinoma, breast cancer, and esophageal cancer. It may be useful to characterize the source of various neoplasms and to study the distribution of cytokeratin containing cells in epithelia during normal development and during the development of epithelial neoplasms. This antibody stains cytokeratins present in normal and abnormal human tissues and has high sensitivity in the recognition of epithelial cells and carcinomas.

Supplier: Cytiva

Sera-Xtracta genomic DNA kit offers magnetic bead-based extraction and purification of genomic DNA from whole blood.

Supplier: MP Biomedicals

Soil samples are complex environments characterised by the presence of inhibitory compounds, such as humic acid, heavy metals, and other aromatic components which may prove to be challenging for downstream analyses.

Supplier: Thermo Scientific

Thermo Scientific™ TSX Series high-performance pharmacy refrigerators are designed with features that support sample protection and sustainability objectives for the storage of pharmaceuticals, vaccines, chemotherapy and other medical and pharmacy-grade storage requiring 2 to 8 °C. The Series’ V-drive technology is designed to provide temperature uniformity that continually adapts to user patterns, offering significant energy savings without compromising protection. The Series’ V-drive technology is designed to provide temperature uniformity that continually adapts to user patterns, offering significant energy savings without compromising protection. Certified to NSF/ANSI 456 Vaccine Storage standard, the TSX series can help you meet regulations and guidelines from the CDC, World Health Organisation, and other Health Ministries on vaccine storage and handling. The TSX Series delivers the performance and quality you need, in addition to the low sound, low energy, and exceptional user experience you deserve.

Supplier: Cytiva

Sera-Mag Select PCR clean-up, size selection reagent combines the exceptional binding characteristics of Sera-Mag carboxyl speedbeads with an optimised binding solution in a ready to use formulation. The DNA size range isolated from the process can be tailored to suit the user’s end requirements by adjusting the amount of reagent that is mixed with a fixed volume of sample.

Supplier: Corning

Axygen® AxyPrep™ Mag Plant gDNA Kit is a magnetic bead-based purification system that allows rapid and reliable isolation of high quality gDNA from a wide variety of plant samples. Up to 96 samples (50 mg fresh tissue per sample or 15 mg of dried tissue per sample) can be processed in less than one hour. The Axygen® AxyPrep™ Mag Plant gDNA Kit eliminates polysaccharides, phenolic compounds and enzyme inhibitors with no organic extractions. This kit is adaptable for use on major liquid handling workstations for high throughput processing.

Supplier: Cytiva

Sera-Xtracta virus/pathogen kit for high-throughput total nucleic acid (DNA/RNA) isolation from bacteria and viruses including adenovirus (type 14), influenza A (H3N2) and COVID-19.

Supplier: Thermo Orion

These bench top meters with conductivity module meet most challenging applications for pH, mV, ORP and temperature. The meters offer interchangeable measurement modules that allow multiple users to customise four separate channels to meet their specific requirements.