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Polyhexamethylene guanidine (PHMG) is a guanidine derivative that is used as a biocidal disinfectant, often in the form of its salt polyhexamethylene guanidine phosphate (PHMG-P). Studies have shown that PHMG in solution has fungicidal as well as bactericidal activity against both Gram-positive and Gram-negative bacteria . [ 2 ]
In May 2024, the Committee for Medicinal Products for Human Use of the European Medicines Agency adopted a positive opinion, recommending the granting of a marketing authorization for the medicinal product Akantior, intended for the treatment of Acanthamoeba keratitis, a severe, progressive and sight threatening corneal infection characterized by intense pain and photophobia.
In 1998, PHMG was founded as PleaseHoldUK in Chester, England.Its office relocated to Manchester in 2000, where the global headquarters has been based since. The agency has rebranded several times. PleaseHoldUK became PH Media Group in 2008, before transitioning to PHMG in 2016. Following significant growth into new territories, the company underwent its most recent
Experiments by the South Korean government found pulmonary toxicity of PHMG and PGH when inhaled as a vapor. [4] [5] PHMG and PGH caused pulmonary fibrosis when experimented on animals. On November 11, 2011, six humidifier disinfectants which contain PHMG and PGH were recovered. PHMG and PGH was banned in 2011, and new cases ceased occurring.
A report on Sina.com in May 2016 said that PHMG was known to have caused 70 deaths and to harmed the lungs of 177 people, with the actual total of deaths and people injured unknown. [ 64 ] Reckitt Benckiser Korea has been blamed for 103 deaths by a coalition of consumer groups in South Korea; [ 67 ] a report from The Korea Herald in April 2016 ...
Statements which correspond to related hazards are grouped together by code number, so the numbering is not consecutive. The code is used for reference purposes, for example to help with translations, but it is the actual phrase which should appear on labels and safety data sheets. [4]
Yttrium barium copper oxide (YBCO) is a family of crystalline chemical compounds that display high-temperature superconductivity; it includes the first material ever discovered to become superconducting above the boiling point of liquid nitrogen [77 K (−196.2 °C; −321.1 °F)] at about 93 K (−180.2 °C; −292.3 °F).
YBA or yba can refer to a number of things: Young British Artists, a movement of British artists in the 1980s and 1990s; Yala language, a language spoken in Ogoja, Nigeria, by ISO 639 code; Young Buddhist Association, an association of Buddhists in the U.S. Banff Airport, an airstrip near Banff, Alberta, Canada, by IATA code