Ethylene oxide (EO) yave ichishandiswa mukuuraya utachiona uye sterilization kwenguva yakareba uye ndiyo yega kemikari gasi inouraya inocherechedzwa nenyika seyakavimbika kwazvo. Kare,ethylene oxideyainyanya kushandiswa muindasitiri-mwero disinfection uye sterilization. Nekuvandudza tekinoroji yemazuva ano yemaindasitiri uye otomatiki uye tekinoroji yakangwara, tekinoroji ye ethylene oxide sterilization inogona kushandiswa zvakachengeteka munzvimbo dzekurapa kuchenesa midziyo yekurapa inotya kupisa nehunyoro.

Hunhu hwe ethylene oxide

Ethylene oxidechizvarwa chechipiri chemakemikari ekuuraya utachiona mushure me formaldehyde. Iyo ichiri imwe yeakanakisa ekuuraya hutachiona inotonhora uye iyo yakakosha nhengo yechina huru-yekupisa tekinoroji tekinoroji.

Ethylene oxide iri nyore epoxy compound. Igasi risina ruvara pakupisa kwekamuri uye kumanikidzwa. Inorema kudarika mweya uye ine hwema hweether. Ethylene oxide inopfuta uye inoputika. Kana mhepo ine 3% kusvika 80%ethylene oxide, gasi rinoputika rakasanganiswa rinoumbwa, iro rinopisa kana kuputika kana richinge raonekwa kune moto wakazaruka. Iyo inowanzoshandiswa ethylene oxide concentration ye disinfection uye sterilization ndeye 400 kusvika 800 mg / L, iyo iri mumoto unopisa uye unoputika mumhepo, saka inofanira kushandiswa nekuchenjerera.

Ethylene oxide inogona kusanganiswa neinert magasi akadaicarbon dioxidemuchiyero che1:9 kuita musanganiswa unoputika, unova wakachengetedzeka pakuuraya utachiona uye kuuraya utachiona.Ethylene oxideinogona polymerize, asi kazhinji iyo polymerization inononoka uye inonyanya kuitika mumamiriro emvura. Mumisanganiswa ye ethylene oxide ine carbon dioxide kana fluorinated hydrocarbons, polymerization inoitika zvishoma nezvishoma uye mapolymer akasimba haadiki kuputika.

Nheyo yeEthylene Oxide Sterilization

1. Alkylation

The mechanism of action ofethylene oxidemukuuraya tupukanana twakasiyana-siyana kunonyanya kuita alkylation. Nzvimbo dzekuita ndeye sulfhydryl (-SH), amino (-NH2), hydroxyl (-COOH) uye hydroxyl (-OH) muprotein uye nucleic acid mamorekuru. Ethylene oxide inogona kuita kuti mapoka aya aite alkylation reactions, ichiita aya biological macromolecules ehutachiona kusashanda, nekudaro achiuraya tupukanana.

2. Kudzivisa kushanda kwema enzymes ehupenyu

Ethylene oxide inogona kuvharidzira kuita kweakasiyana enzymes ehutachiona, senge phosphate dehydrogenase, cholinesterase uye mamwe oxidase, ichitadzisa kupedzwa kweakajairwa metabolic maitiro ehutachiona uye kutungamirira kurufu rwavo.

3. Kuuraya maitiro pane tupukanana

Zvoseethylene oxidemvura uye gasi zvine simba microbicidal mhedzisiro. Mukuenzanisa, iyo microbicidal mhedzisiro yegesi ine simba, uye gasi rayo rinowanzo shandiswa mukuuraya hutachiona uye sterilization.

Ethylene oxide inoshanda zvakanyanya yakafara-akawanda sterilant ine kuuraya kwakasimba uye kusashanda mhedzisiro pamitumbi yekuparadzira mabhakitiriya, bhakitiriya spores, fungi, uye mavhairasi. Kana ethylene oxide ikasangana nema microorganisms, asi tupukanana tuine mvura yakakwana, kuita pakati pe ethylene oxide ne microorganisms inowanzoitika. Iyo dose inomisa yakachena yakajairwa tupukanana, iyo maitiro curve mutsara wakatwasuka pane iyo semi-logarithmic kukosha.

Kushandiswa kwemhando ye ethylene oxide sterilization

Ethylene oxidehaina kukuvadza sterilized zvinhu uye ine simba kupinda mukati. Zvizhinji zvezvinhu zvisina kukodzera kugadzirwa nemaitiro akajairwa zvinogona kuuraya utachiona uye kuchenesa ne ethylene oxide. Inogona kushandiswa kuchenesa zvigadzirwa zvesimbi, endoscopes, dialyzer uye zvinoraswa zvekurapa, maindasitiri disinfection uye sterilization yemachira akasiyana-siyana, zvigadzirwa zvepurasitiki, uye kuuraya hutachiona hwezvinhu munzvimbo dzechirwere chinotapukira (senge kemikari fiber machira, dehwe, mapepa, zvinyorwa, uye pendi yemafuta).

Ethylene oxide haikuvadzi zvinhu zvakasvibiswa uye ine simba rekupinda. Zvizhinji zvezvinhu zvisina kukodzera kugadzirwa nemaitiro akajairwa zvinogona kuuraya utachiona uye kuchenesa ne ethylene oxide. Inogona kushandiswa kuchenesa zvigadzirwa zvesimbi, endoscopes, dialyzer uye zvinoraswa zvekurapa, maindasitiri disinfection uye sterilization yemachira akasiyana-siyana, zvigadzirwa zvepurasitiki, uye kuuraya hutachiona hwezvinhu munzvimbo dzechirwere chinotapukira (senge kemikari fiber machira, dehwe, mapepa, zvinyorwa, uye pendi yemafuta).

Zvinhu zvinokanganisa sterilization mhedzisiro yeethylene oxide

Iyo sterilization mhedzisiro ye ethylene oxide inobatwa nezvakawanda zvinhu. Kuti uwane yakanakisa sterilization maitiro, chete nekudzora zvine hungwaru zvinhu zvakasiyana-siyana zvinogona kuita basa rayo zvakanyanya mukuuraya tupukanana uye kuzadzisa chinangwa chayo chekuuraya hutachiona uye sterilization. Zvinhu zvikuru zvinokanganisa maitiro ekuita sterilization ndezvi: kutarisisa, tembiricha, hunyoro hunyoro, nguva yekuita, nezvimwe.