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One study proposes polyaniline nanofiber composites with metal salts for the detection of hydrogen sulfide. [14] Hydrogen sulfide is a weak acid that is dangerous at low ppm, but polyaniline nanofibers can only give a robust response to strong acids. Metal salts can react with hydrogen sulfate to form a metal sulfide precipitate and a strong acid.
A fiber that has a width of less than 1000 nanometers (1000 nm or 1 μm) is generally defined as a nanofiber. [9] A nanoparticle is defined as a small group of atoms or molecules with a radius of less than 100 nanometers (100 nm). [10]
Sportswear textile with nanofiber membrane inside is based on the modern nanofiber technology where the core of the membrane consists of fibers with a diameter 1000× thinner than human hair. This extremely dense "sieve" with more than 2,5 billion of pores per square centimeter works much more efficiently with vapor removal and brings better ...
A nanofiber has two external dimensions in the nanoscale, with nanotubes being hollow nanofibers and nanorods being solid nanofibers. A nanoplate/nanosheet has one external dimension in the nanoscale, [ 20 ] and if the two larger dimensions are significantly different it is called a nanoribbon .
Indeed, among emerging products one can name nanofiber filters, carbon nanotubes and various nanoparticles. [12] Nanotechnology is expected to deal more efficiently with contaminants which convectional water treatment systems struggle to treat, including bacteria, viruses and heavy metals.
(The Center Square) — New York will usher in a host of new laws in 2025 that will expand paid leave and worker's compensation benefits, reduce the cost of insulin for diabetes patients and make ...
The former first lady was notably absent from President Jimmy Carter's state funeral service, leading Barack Obama and Donald Trump to be seated next to one another
DUBAI (Reuters) - 2025 will be a year of reckoning for Israeli Prime Minister Benjamin Netanyahu and his country's arch foe Iran. The veteran Israeli leader is set to cement his strategic goals ...