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BIOTECHNOLOGY AND LIFE SCIENCES products beginning with : B
551 to 600 of 1664 results  Page: << Previous 50 Results 1 2 3 4 5 6 7 8 9 10 11 [12] 13 14 15 16 17 18 19 20 >> Next 50 Results
Biochemical Steroids (12 suppliers)
Steroids are lipophilic, low-molecular weight compounds derived from cholesterol that play a number of important physiological roles. The steroid hormones are synthesized mainly by endocrine glands such as the gonads (testis and ovary), the adrenals and (during gestation) by the fetoplacental unit, and are then released into the blood circulation. They act both on peripheral target tissues and the central nervous system (CNS). An important function of the steroid hormones is to coordinate physiological and behavioural responses for specific biological purposes, e.g. reproduction.. Because of their lipophilic properties, free steroid molecules are only sparingly soluble in water. In biological fluids, they are usually found either in a conjugated form, i.e. linked to a hydrophilic moiety (e.g. as sulfate or glucuronide derivatives) or bound to proteins (non-covalent, reversible binding).
Biochemical Testing (2 suppliers)
Biochemical Toxins (6 suppliers)
The term 'toxin' means the toxic material or product of plants, animals, microorganisms (including, but not limited to bacteria, viruses, fungi, rickettsiae or protozoa), or infectious substances, or a recombinant or synthesized molecule, whatever their origin and method of production, and includes(A) any poisonous substance or biological product that may be engineered as a result of biotechnology produced by a living organism; or(B) any poisonous isomer or biological product, homolog, or derivative of such a substance.
Biochemical, Benzoic Acid (4 suppliers)
Biochemical, Benzyl Acetate (1 supplier)
Biochemical, Benzyl Alcohol (4 suppliers)
Biochemical, Benzyl Benzoate (1 supplier)
Biochemical, Benzyl Butyrate (2 suppliers)
Biochemical, Benzyl Isobutyrate (1 supplier)
Biochemical, Benzyl Isovalerate (1 supplier)
Biochemical, Benzyl Propionate (1 supplier)
Biochemical, Bioplastics (3 suppliers)
Biochemical, Cesium Salts (1 supplier)
Biochemical, Charge Neutralizers (1 supplier)
Biochemical, Derivatizing Agents (13 suppliers)
Derivatizing of HPLC samples has become vitally important in the pharmaceutical, chemical and agricultural industries. Derivatizing of reactive analytes for HPLC shows the advantage of:increase in analyte stability and higher selectivity and sensitivity caused by reduced polarity that leads to better chromatographic separation Most useful chiral and non-chiral derivatizing reagents for all HPLC applications were available. Chiral derivatizing agents offers an opportunity for the separation of optical isomers
Biochemical, Disaccharides (9 suppliers)
A disaccharide is a sugar (acarbohydrate) composed of two monosaccharides . Disaccharide is one of the four chemical groupings of carbohydrates (monosaccharide, disaccharide, oligosaccharide and polysaccharide). There are two basic types of disaccharides: reducing disaccharides , in which the monosaccharide components are bonded by hydroxyl groups; and non-reducing disaccharides , in which the components bond through their anometric center
Biochemical, Disinfectants (14 suppliers)
Disinfectants are antimicrobial agents that are applied to non-living objects to destroy microorganisms, the process of which is known as disinfection. Disinfectants should generally be distinguished from antibiotics that destroy microorganisms within the body, and from antiseptics, which destroy microorganisms on living tissue. Sanitizers are substances that reduce the number of microorganisms to a safe level. The main difference between a sanitizer and a disinfectant is that at a specified use dilution, the disinfectant must have a higher kill capability for pathogenic bacteria compared to that of a sanitizer. Very few disinfectants and sanitizers can sterilise (the complete elimination of all microorganisms), and those that can depend entirely on their mode of application. Bacterial endospores are most resistant to disinfectants, however some viruses and bacteria also possess some tolerance
Biochemical, Industrial Biocides (4 suppliers)
Industrial biocides are useful to prevent industrial spoilage, in particular that caused by bacteria and fungi. Industrial biocides find application in the preservation of paints, latices, adhesives, leather, wood, metal working fluids and cooling water. One class of compound which can be used as an industrial biocide is based on the isothiazolinone structure. Compositions have been proposed which contain more than one compound which has antimicrobial properties. In general such compositions show an aggregate of the properties of the compounds present in the composition. Typically such compositions contain one compound which exhibits useful antibacterial properties together with a different compound which exhibits useful antifungal properties
Biochemical, Isotopes (15 suppliers)
Isotopes are any of the different forms of an element each having different atomic mass (mass number). Isotopes of an element have nuclei with the same number of protons (the same atomic number) but different numbers of neutrons. Therefore, isotopes have different mass numbers, which give the total number of nucleons-the number of protons plus neutrons Isotopes such as radioisotopes, which are 'compounds containing radioactive forms of atoms, can be introduced into the body for the purpose of imaging, evaluating organ function, or localizing disease or tumors. Modern uses of isotopes that are useful to us are smoke detectors, irradiation in pest control, agriculture applications (radioactive tracers), medical uses, etc.
Biochemical, Lactic Acid (2 suppliers)
Biochemical, Lactide (1 supplier)
Biochemical, Magnesium Acetate (1 supplier)
Biochemical, Tetraacetylribofuranose (1 supplier)
Biochemicals (19 suppliers)
Biochemicals Media (38 suppliers)
Biochemicals, Bioprocessing (3 suppliers)
Bioprocessing is the use of biological means, such as the action of enzymes or other microorganisms, to treat various materials using a set of defined procedures. When this process is used to treat starch-based biomass, it is referred to as starch bioprocessing. Starch is a complex carbohydrate, found in cereal crops like wheat and corn. Because starch-containing biomass forms the basis of many lubricants, fuel additives, and other biochemicals commonly sold on the market, starch bioprocessing is often used in product manufacturing, in the conversion of waste materials to useful by-products, and in the breakdown of waste materials.
Biochemicals, Bioseparations (1 supplier)
Separation technologies have a major impact on manufacturing costs in chemical, biochemical, food, biomedical, pharmaceutical, and biotechnology industries.Technologies have been successfully used to develop new processes for the purification of insulin, antibiotics, anti-cancer drugs, and antiviral drugs. New processes have been developed for the isolation of sugars from biomass hydrolysate. The recovered sugars can be fermented to produce ethanol (clean fuel) and other fine chemicals
Biochemicals, Debonding Aids (1 supplier)
Biochemicals, Desizing Agents (1 supplier)
Desizing is the process of removing the size material from the warp yarns in woven fabrics. Enzymatic desizing is the classical desizing process of degrading starch size on cotton fabrics using enzymes. Enzymes are complex organic, soluble bio-catalysts, formed by living organisms, that catalyze chemical reaction in biological processes. Enzymes are quite specific in their action on a particular substance. A small quantity of enzyme is able to decompose a large quantity of the substance it acts upon. Enzymes are usually named by the kind of substance degraded in the reaction it catalyzes. Amylases are the enzymes that hydrolyses and reduce the molecular weight of amylose and amylopectin molecules in starch, rendering it water soluble enough to be washed off the fabric. Effective enzymatic desizing require strict control of pH, temperature, water hardness, electrolyte addition and choice of surfactant.
Biochemicals, High Purity Solvents (21 suppliers)
Solvents, defined as substances able to dissolve or solvate other substances, are commonly used in manufacturing and laboratory processes and are often indispensable for many applications such as cleaning, fire fighting, pesticide delivery, coatings, synthetic chemistry, and separations . Billions of pounds of solvent waste are emitted to the environment annually, either as volatile emissions or with aqueous discharge streams. Many of these solvents are known to upset our ecosystems by depleting the ozone layer and participating in the reactions that form tropospheric smog. In addition, some solvents may cause cancer, are neurotoxins, or may cause sterility in those individuals frequently exposed to them. While contained use of these solvents would be acceptable from both an environmental and a health perspective, such operations are difficult to achieve, and alternative solvents are currently being sought to minimize the problems inherent in solvent release to the environment
Biochemicals, Hormones (13 suppliers)
A hormone is a chemical messenger that carries a signal from one cell to another. All multicellular organisms produce hormones; plant hormones are also called phytohormones. Hormones in animals are often transported in the blood. Cells respond to a hormone when they express a specific receptor for that hormone. The hormone binds to the receptor protein, resulting in the activation of a signal transduction mechanism that ultimately leads to cell type-specific responses.Endocrine hormone molecules are secreted (released) directly into the bloodstream, while exocrine hormones (or ectohormones) are secreted directly into a duct, and from the duct they either flow into the bloodstream or they flow from cell to cell by diffusion in a process known as paracrine signalling.
Biochemicals, Lactates (3 suppliers)
Biochemicals, Peptides (45 suppliers)
Peptides are chains of amino acids. In nature there are 21 natural L- amino acids that, in various combinations and permutations, make up the peptides and proteins of living things. Virtually every life process involves peptides in some way. Their key role is to regulate body functions such as the release of hormones, the regulation of blood sugar levels, bone metabolism and various neurological processes. Chains containing more than approx. 100 amino acids are generally called proteins.Peptides play a key role in the growing segment of biopharmaceuticals. Peptide-based drug targets are being identified at an increasingly rapid pace and a variety of new peptide drugs are being developed as novel therapies for cancer, pain treatment, viral infections, diabetes and a host of endocrine and neurological disorders.
Biochemistry Books (4 suppliers)
Biocides and Algicides (7 suppliers)
A biocide is a chemical substance capable of killing different forms of living organisms used in fields such as medicine, agriculture, forestry, and mosquito controlBiocides can also be added to other materials (typically liquids) to protect the material from biological infestation and growth. For example, certain types of quaternary ammonium compounds (quats) can be added to pool water or industrial water systems to act as an algicide, protecting the water from infestation and growth of algae. Chlorine can be added in low concentrations to water as one of the final steps in wastewater treatment as a general biocide to kill micro-organisms, algae, etc.
BioCoatT Assay Plates (1 supplier)
BioCoatT Cell ware (1 supplier)
BioCoatT Collagen I Cell Culture Inserts (1 supplier)
BioCoatT Collagen IV Cell Culture Inserts (1 supplier)
BioCoatT Fibrillar Collagen Cell Culture Inserts (1 supplier)
BioCoatT Fibronectin Cell Culture Inserts (1 supplier)
BioCoatT Hepatocyte Differentiation Environment (1 supplier)
BioCoatT Laminin Cell Culture Inserts (1 supplier)
BioCoatT Smooth Muscle Cell Differentiation Environment (1 supplier)
BioCoatT Variety Pack Cell Culture Inserts (1 supplier)
Biocompatibility Reagents (1 supplier)
Biocompatibility Testing (1 supplier)
Biocompatible Multi-Dimensional Liquid Chromatograph (1 supplier)
Biocompost Services (1 supplier)
Biocytin C2 Maleimide (2 suppliers)
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