ʻO kekahi mau metala, e like mekālā, gula a me ke keleawe, loaʻa nā waiwai antibacterial a me nā antimicrobial;hiki iā lākou ke pepehi a hoʻopaʻa paha i ka ulu ʻana o nā microorganism me ka ʻole o ka hoʻopilikia nui ʻana i kahi mea hoʻokipa.ʻO ka hoʻopili ʻana i ke keleawe, ka mea liʻiliʻi loa o nā mea ʻekolu, i ka lole i hōʻike paʻakikī i ka wā ma mua.Akā i ka makahiki 2018, ua hui pū nā mea noiʻi mai The University of Manchester a me Northwest Minzu a me Southwest University ma Kina e hana i kahi kaʻina hana kūʻokoʻa e hoʻopili pono ai i ka lole me nā nanoparticles keleawe.Hiki ke hoʻohana ʻia kēia mau lole e like me nā ʻaʻahu o ka haukapila antimicrobial a i ʻole nā ​​​​mea lole hoʻohana lāʻau ʻē aʻe.

kiʻi o ke kahu hānai i ka lole a me ke keleawe i loko o kahi kīʻaha, hōʻaiʻē: COD Newsroom ma Flickr, european-coatings.com

"He maikaʻi loa kēia mau hopena, a ke hōʻike nei kekahi mau hui i ka hoihoi i ka hoʻomohala ʻana i kēia ʻenehana.Manaʻolana mākou hiki iā mākou ke hoʻolaha i ka ʻenehana holomua i loko o ʻelua mau makahiki.Ua hoʻomaka mākou e hana i ka hōʻemi ʻana i ke kumukūʻai a me ka maʻalahi o ke kaʻina hana," ʻo Kauka Xuqing Liu.wahi a.

I loko o kēia haʻawina, ua hoʻohana ʻia nā nanoparticles keleawe i ka pulupulu a me ka polyester ma o ke kaʻina i kapa ʻia, "Polymer Surface Grafting."ʻO nā nanoparticles keleawe ma waena o 1-100 nanometers i hoʻopili ʻia i nā mea me ka hoʻohana ʻana i kahi pulu polimer.ʻO ka pulupulu polimer he hui ia o nā macromolecules (nā molekula i loaʻa ka nui o nā mana) i hoʻopaʻa ʻia ma kekahi ʻaoʻao i kahi substrate a i ʻole ka ʻili.Ua hana kēia ʻano hana i kahi paʻa kemika ikaika ma waena o nā nanoparticles keleawe a me nā ʻili o nā lole.

"Ua ʻike ʻia ua hoʻokaʻawale ʻia nā nanoparticles keleawe ma luna o nā ʻili," e like me ka noiʻi.ʻikeʻike.Ua hōʻike ʻia nā mea i mālama ʻia i ka "hana antibacterial maikaʻi" e kūʻē iā Staphylococcus aureus (S. aureus) a me Escherichia coli (E. coli).He ikaika a hiki ke holoi ʻia nā mea lole hou i haku ʻia e kēia mau mea ʻepekemamea kūʻokoʻahana kū'ē ma hope o 30 kaʻina holoi.

"I kēia manawa ke hōʻike nei kā mākou mea hoʻohui i nā waiwai antibacterial maikaʻi loa a me ka lōʻihi, loaʻa iā ia ka mana nui no nā noi olakino a me ke olakino," wahi a Liu.

He pōʻino koʻikoʻi ka maʻi bacteria ma ka honua holoʻokoʻa.Hiki iā lākou ke pālahalaha ma luna o nā lole a me nā wahi i loko o nā halemai, e kūʻai ana i nā ʻumi kaukani o nā ola a me nā piliona kālā i kēlā me kēia makahiki ma US wale nō.

Ua loaʻa iā Gregory Grass o ke Kulanui o Nebraska-Lincolnaʻo ʻiahiki i ke keleawe maloʻo ke pepehi i nā microbes ke pili i ka ʻili.ʻOiai ke manaʻo nei ʻo ia ʻaʻole hiki ke hoʻololi i nā ʻano hana hoʻomaʻemaʻe koʻikoʻi i nā keʻena olakino, manaʻo ʻo ia e "hōʻemi maoli lākou i nā kumukūʻai e pili ana i nā maʻi i loaʻa i ka haukapila a pale i nā maʻi kanaka, a me ka hoʻopakele ola."

Ua hoʻohana ʻia nā metala e like menā lāʻau antimicrobialno nā kaukani makahiki a ua pani ʻia e nā lāʻau antibiotic i ka waena o ke kenekulia 20.I ka makahiki 2017pepai kapa ʻia, "Metal-based antimicrobial strategies," kākau ʻo Raymond Turner o ke Kulanui o Calgary, "ʻOiai ʻo ka noiʻi ʻana a hiki i kēia lā ma MBAs ([metal-based antimicrobials]) he ʻōlelo hoʻohiki nui, ʻo ka ʻike o katoxicologyʻO kēia mau metala ma luna o ke kanaka, nā holoholona, ​​​​nā mea kanu a me ka microbial-ecosystem holoʻokoʻa i nele.

"Nanoparticles Copper Antibacterial lōʻihi a hiki ke holoi ʻia e ka Surface Grafting Polymer ʻO nā pulupulu ma ka pulupulu a me nā mea polymeric,"ua paʻi ʻia ma kaNūpepa o Nanomaterialsi ka makahiki 2018.