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目前显示的是 十二月, 2021的博文

Hot Sale Fluorescent Quantitative Detection System Real- time PCR with LCD display

  Introduction:  Real- time PCR  is used for sensitive, specific detection and quantification of nucleic acid targets. We have developed powerful assay design algorithms, optimized qPCR regent, intuitive data analysis software, and flexible instrumentation  to help harness the power of qPCR across a rich and diverse set of applications. Explore our robust solutions for your qPCR-based research.  Application:  It can be widely used for Infectious disease research, Food pathogen detection, Waterborne pathogen detection, Pharmaceutical analytics, Stem cell research, Pharmacogenomics research, Oncology and genetic disease research, Plant sciences and agricultural biotechnology.  Working Principle:   The temperature step change is controlled by the semiconductor peltier to realize PCR amp仙cation. Use high-sensitivity MPPC unit to detect fluorescence; Program control channel switching, non-contact excitation/detection on the top structure, coordinated w...

The difference between single-walled carbon nanotubes and multi-walled carbon nanotubes

  Carbon nanotubes   are simply classified according to the number of layers of graphene sheets: single-walled carbon nanotubes and multi-walled carbon nanotubes. The difference between the two is mainly reflected in: 1. Discover the time difference In 1991, when Li Ji-ma, an electron microscope expert in the Basic Research Laboratory of NEC Corporation, Japan, observed the C60 structure under a high-resolution transmission electron microscope, he accidentally discovered a diameter of 4-30nm, a length of μm, and a graphite structure on the tube wall. Multilayer carbon molecules, this is the carbon nanotubes that are widely concerned today. However, what Li Ji-ma discovered at the time was not single-walled carbon nanotubes. The minimum number of layers is 2, called double-walled carbon nanotubes. In 1993, the research teams of NEC and IBM successfully synthesized single-layer carbon nanotubes (SWCNTs) at the same time. Figure 1 2. Different structure Multilayer carbon nanotube...