TransGen Biotech
 |
||
TransGen Biotech, Inc. is a researcher, developer, manufacturer and distributor of more than 200 molecular and cellular biology products and kits for life science research and molecular diagnostics. In 2001, the company was founded by three scientists with a mission to produce innovative and cost-effective products for life science research. Currently, our products cover: plasmid based DNA markers, high efficiency chemically competent cells, 5 minutes PCR product cloning and expression vectors, a variety of PCR enzymes and supermix, RNase H deficient and high temperature RT enzymes, qPCR and qRT-PCR supermix, the highest efficiency mutagenesis kits, high quality nucleic acid extraction and purification kits, unstained and prestained protein markers, western blot markers, and protein purification resins, cell culture and transfection reagents, antibodies.
Website : www.transgenbiotech.com
| ||
Histological special stains
Special stains are performed to specify structures or substances suspected by the pathologist during his initial analysis of standard technique slices.
The histochemical techniques are based on biochemical reactions which make it possible to reveal in situ, various constituents (lipids, carbohydrates, proteins, nucleic acids, metals, etc).
The purpose of the special stains is to highlight particular constituents of the cells (glycogen, mucus, pigments, etc.), or of the extracellular matrix (collagens, elastic fibers, amylose, etc.), as well as infectious agents (bacteria , parasites, fungi). These stainings are very varied and their implementation extends the technical process.
A new slide is required for each color (for this reason, the laboratory retains 'white' slides for possible future examinations). Each special coloring has a clean technical protocol using a variety of chemical substances.
Here are some special dyes we offer:
- Connective tissue: A.F.O.G, Azan Trichrome, Masson Trichrome, Mallory Trichrome ...
- Carbohydrates: Blue alcian, congo red ...
- Pigments and mineral deposits: Masson Fontana, Grimelius ...
- Cytology: Eosin-nigrosin, Sudan Black ...
- Mushrooms, bacteria and parasites: Giemsa, Warthin Starry ...
- Central nervous system: Luxol Blue
- Lipids: Oil Red O, Sudan Black B ...
- Nuclei and nucleic acids: Feulgen
