Reagent, Alpha hCG is an antibody, which is currently available for in vitro diagnostic use. This monoclonal antibody is designed for the specific localization of formalin fixed and paraffin embedded tissue sections.

Reagent, Beta FSH enables ovarian folliculogenesis to the antral follicle stage and is essential for sertoli cell proliferation and maintenance of sperm quality in the testis. FSH consists of a shared alpha chain and a beta chain encoded by a separate gene. The FSH beta gene encodes the beta subunit of follicle stimulating hormone.

Reagent, Beta hCG is the pregnancy hormone called human chorionic gonadotropin, which is produced by the cells of the implanting egg and also produced in the absence of an embryo. Beta hCG can be detected in maternal plasma or urine by 8 to 9 days after ovulation.

Reagent, Beta LH is a hormone synthesized and secreted by gonadotropes in the anterior lobe of the pituitary gland. LH has a beta subunit of 121 amino acids (LHB) that confers its specific biologic action and is responsible for interaction with the LH receptor. This beta subunit contains the same amino acids in sequence as the beta sub unit of hCG and both stimulate the same receptor, however the hCG beta subunit contains an additional 24 amino acids, and both hormones differ in the composition of their sugar moieties.

Reagent, Beta TSH are known as thyrotropin, which are secreted from cells in the anterior pituitary called thyrotrophs that finds its receptors on epithelial cells in the thyroid gland and stimulates that gland to synthesize and release thyroid hormones. It is a glycoprotein hormone composed of two subunits, which are non-covalently bound to one another. These hormones also have a unique beta subunit, which provides receptor specificity.

Reagent, Goat Anti-rabbit IgG is used as the secondary antibody for western blotting or ELISA where the primary antibody is generated in rabbits. This peroxidase-conjugated secondary antibody is suitable for western blotting when employing detection by commercially available chemiluminescence-based substrates. This secondary antibody conjugate is used to develop ELISAs with substrates like ABTS, OPD or TMB.

Reagent, HbsAg is the surface antigen of the hepatitis-B-virus (HBV). The capsid of a virus has different surface proteins from the rest of the virus. The antigen is a protein that binds specifically on one of these surface proteins. It is present in the sera of patients with viral hepatitis.

Reagent, Recombinant is an antigen, which is suitable for an enzyme immune assay (EIA) or the enzyme linked immunosorbent assay (ELISA) kits testing. The recombinant HIV antigens are used in radioimmuno precipitation assay (RIPA) test, which is a confirmatory test when antibody levels are very low or difficult to detect or when western blot test results are uncertain.

Rechargeable battery is a combination of two or more secondary cells. This battery can be restored to full charge by the application of electrical energy. It is also known as storage battery.