Shanghai Chemtron Biotech Co.Ltd.

Quantum Dot Immunochromatography

QDs(quantum dots) is a semiconductor fluorescent nanoparticle, usually between 1 and 20nm in diameter and is composed of ii-vi or iii-v elements. Compared with fluorescence labeling materials of organic dyes, quantum dots have large stokes shift, wide excitation spectrum, narrow emission spectrum, strong and stable fluorescence emission intensity, high quantum yield and light resistance bleaching, which has become a new hotspot in the field of analysis and detection.

It was found that most couple mode of the quantum dot and the mouse 1gG antibody was investigated by immunochromatographic method, and the results showed that the performance of the fluorescence probe prepared by the mixture of 1 - (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride (CEDC) and the n-hydroxysuccinimide (NHS) was better than that of the fluorescence probe with the coupling agent in the form of 1 - (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride (CEDC) and the n-hydroxysuccinimide (NHS), which is a coupling agent in a mass ratio of 3:4. It uses silane coupling agent aptes-aminated silica nanoparticle (50-500 nm) as support, coupling reagent EDC and NHS to couple it with CdTe quantum dots to prepare fluorescent microspheres with high strength; Preliminary results showed that fluorescence immunochromatography was 4-20 times more sensitive than colloidal gold immunochromatography.

Chemtron biotech rapid test reader is of high quality. Learn more about the rapid test reader from chemtron biotech.
Related News
  • Characteristics of HCV Detection Kit

    Characteristics of HCV Detection Kit

    July 26, 2018It shortens the "window period" of HCV infection, which is 70 days to 2 years shorter than the "window period" of HCV antibody detection currently used in the marketThe vaccine can be used to diagnose...view
  • Classification of Fob Rapid Test

    Classification of Fob Rapid Test

    July 26, 2018Fecal occult blood test paper can be divided into two types according to the application method: traditional method (self-determination of feces) and new method (direct detection without feces).3.1 tr...view
  • Rapid Strep Test  Advantage

    Rapid Strep Test Advantage

    August 8, 2018Product AdvantageTotal antibody detection (IgM/IgG/IgA) can detect syphilis at any stage.Third party certification authority high sensitivity (99.5%) and specificity (100%).Reagent can be used directl...view
  • FOB Colorectal Cancer Screening

    FOB Colorectal Cancer Screening

    July 26, 2018Colorectal cancer can evolve without any early warning of inflammation, and cancer can spread to other parts of the body after years of growth in the inner wall of the large intestine. Before the onse...view
  • Fecal Occult Blood

    Fecal Occult Blood

    July 26, 2018Occult blood of stool (also called occult blood of stool) refers to hemorrhage of digestive tract, destruction of red blood cell digestion, no abnormal change of fecal appearance, hemorrhage that can ...view
  • Menopause Examination

    Menopause Examination

    July 26, 20181. The follicular generating hormone (FSH) rises.2. Levels of estradiol (E2) and progesterone decreased.3. There is no change in luteinization or hormone (LH) during menopause, and it can be increased...view
  • TEL:+86-21-68129666
  • FAX:+86-21-68129222
  • EMAIL:international@chemtronbio.com
  • ADDRESS:No.518, Qingdai Rd., International Medical Park, Pudong, 201318, Shanghai, P.R.China