Japanese researchers have developed a method for heating nanocarbon tubes and metal powders to produce nanowires in a vacuum. The nanowires produced by this method are stable and have low chemical activity compared to nanowires produced by other methods. This method is best suited for metals that can be converted to gases at relatively low temperatures, such as ruthenium, osmium, iridium and ruthenium. From this way, the metal atoms are almost completely filled with the cavities of the carbon nanotubes. The study found that the metal ruthenium has an inner diameter of about O. A 76 nm carbon nanotube can obtain a wire composed of a single atomic chain. This first true one-dimensional nanowire is chemically stable after exposure to air for a month.
Compared with single-channel pipettes, multi-channel pipettes simplify all the tasks associated with microtiter plates that often occur in immunology, biochemistry, clinical diagnosis and food analysis. Multi-channel pipettes generally have 8 and 12 heads. The gun body can be rotated at 360°C, and each part can be disassembled and repaired separately. The lower half can be sterilized at 121°C. The dimpled housing ensures a firmer grip for the operator. Can be quickly calibrated.
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