{"id":9300,"date":"2009-11-30T14:34:57","date_gmt":"2009-11-30T21:34:57","guid":{"rendered":"http:\/\/www.pcvesti.com\/?p=9300"},"modified":"2009-11-30T14:34:57","modified_gmt":"2009-11-30T21:34:57","slug":"prototipski-uredaj-za-unistavanje-bakterija-plazmom","status":"publish","type":"post","link":"https:\/\/www.pcvesti.com\/?p=9300","title":{"rendered":"Prototipski ure\u0111aj za uni\u0161tavanje bakterija plazmom"},"content":{"rendered":"

Prototipski ure\u0111aj koji je u stanju da ruke, noge pa \u010dak i pazuhe, oslobodi od bakterija, uklju\u010duju\u0107i i \u010duvenu bolni\u010dku varijantu MRSA, uspe\u0161no je demonstriran u \u010detvrtak.<\/span><\/p>\n

Ure\u0111aj radi tako \u0161to stvara plazmu koja proizvodi koktel hemikalija \u0161to ubijaju bakterije, ali su bezopasne za ko\u017eu. Sli\u010dan postupak mogao bi da ubrza i zarastanje rana.<\/p>\n

U \u010dlanku<\/a> objavljenom u \u010dasopisu New Journal of Physics<\/a> u okviru teme posve\u0107ene plazma medicini, autori navode da bi plazme mogle re\u0161iti i probleme upale desni pa \u010dak i zadaha tela.<\/p>\n

Plazma je \u010detvrto stanje materije sa ogoljenim atomima \u010diji su elektroni uklonjeni visoko-energetskim procesima, na primer visokim naponom. Za razliku od one koja se sre\u0107e u svemirskim prostranstvima, istra\u017eiva\u010di su u ovom slu\u010daju koristili takozvanu hladnu atmosfersku plazmu. Umesto da sve atome pretvore u plazmu ogoli se samo nekolicina i tako nastali elektroni i joni se usporavaju u sudarima sa okolnim neizmenjenim atomima.<\/p>\n

Poznato je da je takva plazma uni\u0161tava bakterije, viruse i gljivice, \u0161to se ve\u0107 koristi za dezinfekciju hirur\u0161kih instrumenata. Gregor Morfil, nau\u010dnik iz instituta Maks Plank specijalizovan za vanzemaljsku fiziku, koji je vodio istra\u017eivanje, rekao je da je efekat sli\u010dan onom koji izaziva na\u0161 imuni sistem. \u201ePlazma proizvodi preko 200 hemijskih reakcija u kojima u\u010destvuju kiseonik i azot iz vazduha i vodena para, \u010dime se stvara masa hemikalija smrtonosnih po bakterije.\u201c
\n.
\nProfesor Morfil i njegove kolege su uspeli da preciziraju detalje proizvodnje plazme koja ubija opasne mikroorganizme ali ne o\u0161te\u0107uje ko\u017eu i napravili su nekoliko ure\u0111aja s kojima su demonstrirali efikasnost metode. Presudni momenat je bilo nala\u017eenje na\u010dina da se plazma proizvodi efikasno ali po niskoj ceni, kako bi se omogu\u0107ila masovna proizvodnja odgovaraju\u0107ih aparata za bolnice.<\/p>\n

Izlaganje delovanju plazme u trajanju od svega 12 sekundi smanjuje broj bakterija, virusa i gljivica na rukama milion puta \u2013 \u0161to je daleko u\u010dinkovitije od pranja ruku sapunom i vodom nekoliko minuta.<\/p>\n

Ure\u0111aj je veoma fleksibilan jer se mo\u017ee napraviti u razli\u010ditim veli\u010dinama i oblicima pa \u010dak i u verzijama koje rade na baterije.<\/p>\n

Sli\u010dan pristup u kome se umesto vazduha koristi argon pogodan je za brzo zarastanje rana, mada nau\u010dnici jo\u0161 uvek nisu sigurni da li su efekti koji se posti\u017eu ovakvom primenom plazme posledica hemijskog koktela koji stvara plazma ili jednostavnog smanjenja broja bakterija u okolini rane<\/p>\n

Professor Morfil smatra da su potrebna dodatna testiranja ure\u0111aja pre nego \u0161to u\u0111u u \u0161iru upotrebu, ali isti\u010de da se za njih ve\u0107 zanima veliki broj proizvo\u0111a\u010da. (M.V.)<\/p>\n

Izvor: Mikro<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Prototipski ure\u0111aj koji je u stanju da ruke, noge pa \u010dak i pazuhe, oslobodi od bakterija, uklju\u010duju\u0107i i \u010duvenu bolni\u010dku varijantu MRSA, uspe\u0161no je demonstriran u \u010detvrtak. Ure\u0111aj radi tako \u0161to stvara plazmu koja proizvodi koktel hemikalija \u0161to ubijaju bakterije, ali su bezopasne za ko\u017eu. Sli\u010dan postupak mogao bi da ubrza i zarastanje rana. U \u010dlanku objavljenom u \u010dasopisu New Journal of Physics u okviru teme posve\u0107ene plazma medicini, autori navode da… <\/p>\n

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Ure\u0111aj radi tako \u0161to stvara plazmu koja proizvodi koktel hemikalija \u0161to ubijaju bakterije, ali su bezopasne za ko\u017eu. Sli\u010dan postupak mogao bi da ubrza i zarastanje rana. U \u010dlanku objavljenom u \u010dasopisu New Journal of Physics u okviru teme posve\u0107ene plazma medicini, autori navode da... 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