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  2. Air ioniser - Wikipedia

    en.wikipedia.org/wiki/Air_ioniser

    An air ioniser (or negative ion generator or Chizhevsky's chandelier) is a device that uses high voltage to ionise (electrically charge) air molecules. Negative ions, or anions, are particles with one or more extra electrons, conferring a net negative charge to the particle. Cations are positive ions missing one or more electrons, resulting in ...

  3. Negative air ions - Wikipedia

    en.wikipedia.org/wiki/Negative_air_ions

    This website is the first negative ions industry website in China, and its purpose is to rapidly promote the orderly development of the air negative ion (negative oxygen ion) industry. In 2020, the Tsinghua University successfully developed a medical-grade high-concentration negative oxygen ion generator.

  4. Diffusiophoresis and diffusioosmosis - Wikipedia

    en.wikipedia.org/wiki/Diffusiophoresis_and_diff...

    So for example, for a negatively charged particle, <, and if the positively charged ions diffuse faster than the negatively charged ones, then this term will push particles down a salt gradient, but if it is the negatively charged ions that diffuse faster, then this term pushes the particles up the salt gradient.

  5. Counterion - Wikipedia

    en.wikipedia.org/wiki/Counterion

    In table salt (NaCl, also known as sodium chloride) the sodium ion (positively charged) is the counterion for the chloride ion (negatively charged) and vice versa. A counterion will be more commonly referred to as an anion or a cation, depending on whether it is negatively or positively charged. Thus, the counterion to an anion will be a cation ...

  6. Negative methane - Wikipedia

    en.wikipedia.org/wiki/Negative_methane

    Negative methane is the negative ion of methane, meaning that a neutral methane molecule captured an extra electron and became an ion with a total negative electric charge: CH 4-. This kind of ion is also known as anion and are relevant in nature [ 1 ] because negative ions have been observed to have important roles in several environments.

  7. Ionochromism - Wikipedia

    en.wikipedia.org/wiki/Ionochromism

    Ionochromism is the process of reacting an ionochromic material with a charged species, or a positively or negatively charged ion. Materials that have ionochromic properties exhibit reversible color change, where the absence of a stimulus such as an ionic species can result in the compound changing to its original color. [2]

  8. Medicare premiums rise for 2025, nicking retirees' Social ...

    www.aol.com/finance/medicare-premiums-rise-2025...

    That news follows the Social Security Administration’s announcement of a 2.5% cost-of-living adjustment (COLA) for 2025, which will add about $50 to the average monthly benefit of roughly $1,900 ...

  9. Voltage-gated sodium channel - Wikipedia

    en.wikipedia.org/wiki/Voltage-gated_sodium_channel

    The pore of sodium channels contains a selectivity filter made of negatively charged amino acid residues, which attract the positive Na + ion and keep out negatively charged ions such as chloride. The cations flow into a more constricted part of the pore that is 0.3 by 0.5 nm wide, which is just large enough to allow a single Na + ion with a ...