While these are stronger than traditional sticky tape at extremes of temperature, they tend to be quite thick and not cost-effective for production in large amounts. Previous research has examined the use of nanomaterials, including vertically aligned multi-walled carbon nanotubes, to produce improved sticky tape. The tape can be removed even after exposure to extreme temperature just by peeling it off, soaking it in acetone or burning it, leaving little residue, and can adhere to a range of different materials, although it stuck more strongly to smooth surfaces in the same way as conventional tape. The SACNT tape, which demonstrated improved performance over standard adhesives at temperatures between –196C and 1,035C, is very sticky, super clean and multi-purpose, and can be made comparatively cheaply in large amounts. To produce the tape, the scientists pulled a film from the interior of an array of SACNTs in the same way as pulling tape from a dispenser, with the resulting double-sided tape able to stick to surfaces through van der Waals interactions, weak electric forces produced between two atoms or molecules when close together. Unlike standard sticky tapes, which are prone to losing their stickiness and also leave a residue, this ultrathin, ultra-lightweight and flexible tape made from carbon nanotubes remains adhesive even in extreme temperatures and is easy to remove.Īs reported in the journal Nano Letters , the team wanted to explore the possibility of devising a new kind of sticky tape made up of superaligned carbon nanotube (SACNT) films, nanotubes that are precisely aligned parallel to each other and which can be formed into very thin yet strong yarns or films. Each accessory comes complete with a loading tray and bubble checker.Researchers at Tsinghua University in Beijing have developed a new nanomaterial adhesive tape that can function over a wide range of temperatures. The 0.5 mm version offers a selection of five colors. The 0.2 mm Nano Stick is available in black and red. For the dual channel version the complete measurement is performed by simply “flipping” the accessory in the cuvette holder. In addition, the product is available with two optical geometries – a single channel assembly that requires blank and the sample to be loaded and measured sequentially and a dual channel version with top and bottom sampling areas allowing blank and sample loading at the same time. The Nano Stick is available in 8.5 mm and 15 mm z-height configurations and offers two pathlength options – 0.2 mm for concentrated samples and 0.5 mm for more routine applications. The accessory matches the size and format of standard 10 mm UV-Vis cuvettes and can be easily mounted in the cell holders of most bench-top UV-Vis spectrophotometers. The Nano Stick is a precision UV-Vis accessory designed for quick and reproducible measurements of biological samples.
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