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Application of SIC and B4C ceramics in bulletproof armor

  As a key member of non-metallic materials, ceramic materials have a large number of attractive properties, such as good mechanical and electrochemical properties, low thermal conductivity, dense and uniform structure, wear resistance and corrosion resistance, etc. The high specific stiffness, high specific strength and chemical inertness of ceramic materials in complex environments, and the low density, high hardness and high compressive strength of metal materials, make it very promising in the application of armored systems. And has been widely used in body armor, vehicles and aircraft and other equipment protective armor. 1. The bulletproof principle of ceramic materials Metal materials can absorb the energy of the bullet through plastic deformation, and ceramics, as a brittle material, the plastic deformation is almost zero when it is broken. Therefore, under the action of the large impact force of the warhead, the ceramic material mainly absorbs energy through the micro-frag...

Adsorption of Endotoxin and Related Solutions

  What calls for special attention is that not all instruments or accessories could be applied to detect endotoxin. Some instruments such as plastic instruments may adsorb endotoxin, which will lead to inhibition. To avoid such situation, dilution tube, reaction tube and pipette made of borosilicate glass should be the first choice. Bioendo also has various  endotoxin-free instruments  and accessories. We have endotoxin-free glass test tubes with different specifications, sample bottles, and tubes for reaction and dilution. Meanwhile, Bioendo also provide single-use instruments like pyrogen-free microplate, pyrogen-free reagent reservoir, pyrogen-free pipette tips with different specification, test tube rack, ampoule rack, and so on. Endotoxin-free instruments and  pyrogen-free single-use instruments  provided by Bioendo could help you well reduce the inference from adsorption on endotoxin by instrument.

Supply Carbon Nanotube Films,Electromagnetic Shielding Composite Film

  Specification of  Carbon Nanotube Film : Compared with bucky paper,  carbon nanotube film  has stronger flexibility, higher strength, better conductivity, and larger area. In short, the carbon nanotube film is an upgraded version of Bucky Paper.    Metal content: <5% Conductivity: 0.8-3x105S/m Strength: 60-100MPa Size: 5cm*5cm, 10cm*10cm, single sheet maximum 90*60cm Thickness: 10-30um Carbon Nanotube Film should be stored in dry, cool and sealing of the environment, please don't be exposure to air, besides should avoid the heavy pressure, according to ordinary goods transportation.

Cesium Tungsten oxide nanopowder CS0.33WO3 nanoparticle

  Application of  Cs0.33WO3 : Cesium Tungsten oxide nanopowder CS0.33WO3 nanoparticles is an inorganic nano-material with good effect on near-infrared absorption, with uniform particles and good dispersion. A new functional material with strong absorption in the near-infrared region (wavelength 800-1200 nm) and high transmittance in the visible region (wavelength 380-780 nm). The infrared absorption at 950 nm can reach more than 90%, and the visible light transmittance at 550 nm reaches 70% or more. Its application: 1. Transparent heat insulation coatings and films; 2. High-performance thermal insulation media such as chemical fiber and textile fiber; 3. Transparent insulating window film, building coating; 4. Car foil, PVB insulation film, laser marking, laser welding, photothermal diagnosis, infrared filter Specification of  Cs0.33WO3 : Cesium Tungsten Oxide powde r can be used in combination with tin oxide and antimony, and can be used in coatings, master bat...

Why is silicon carbide powder black and green

  Black  silicon carbide  is made of quartz sand, petroleum coke and high-quality silica as the main raw materials, and is smelted at high temperature in a resistance furnace. The raw materials used in the manufacture of green silicon carbide, such as black silicon carbide, are roughly the same, and industrial salt is added as a reactant and accelerator to react in a resistance furnace. In terms of its color, it is green, so it is named  green silicon carbide . In addition to the difference in color, in general, green silicon has good sharpness and black silicon has good toughness. It is different from where they are used. The texture of green silicon carbide is purer than black silicon carbide, and the hardness is higher than that of black silicon carbide. Its grinding purpose is the same as that of black silicon carbide. It is more suitable for fine grinding of materials such as thread grinding, grinding tools, etc. Grinding materials are more widely used for workp...

Graphene quantum dots are quasi-zero-dimensional nanomaterials

Graphene quantum dots  are quasi-zero-dimensional nanomaterials, and their internal electrons are restricted in all directions, so the quantum confinement effect is particularly significant and has many unique properties. This may bring revolutionary changes in the fields of electronics, optoelectronics and electromagnetics. Used in solar cells, electronic equipment, optical dyes, biomarkers and composite particle systems. Graphene quantum dots have important potential applications in the fields of biology, medicine, materials, and new semiconductor devices. Single-molecule sensors can be realized, and ultra-small transistors or on-chip communication using semiconductor lasers may be used to make chemical sensors, solar cells, medical imaging devices, or nano-scale circuits. Graphene double  quantum dots  have different sizes of quantum dot structures. The large quantum dots are also called single-electron transistors (SET), which are used as detectors to read out the cha...

Custom Membrane Proteins

  We have developed a practical procedure for expedient and cost-effective synthesis of small to medium-sized membrane proteins in multi-milligram scale through the use of automated Fmoc chemistry. After the attachment of a removable arginine-tagged backbone modification group, the membrane protein segments behave almost the same as ordinary water-soluble peptides in terms of Fmoc solid-phase synthesis, ligation, purification, and mass spectrometry characterization. The efficiency and practicality of the method is demonstrated by the successful preparation of Ser64-phosphorylated M2 proton channel from influenza A virus and the membrane-embedded domain of an inward rectifier K+ channel protein Kir5.1.  Figure1. Removable Arg-tagged backbone modification for chemical synthesis of membrane proteins Reference: ------------------------------------------------------------------------------------ 1.Zheng, J. S. et al. Expedient total synthesis of small to medium-sized membrane prot...