I-Ultrasoundluhlobo lwegagasi lokunwebeka kwemishini ephakathi nendawo.Kuyifomu yegagasi.Ngakho-ke, ingasetshenziswa ukuthola ulwazi lwe-physiological kanye ne-pathological yomzimba womuntu, okungukuthi, i-ultrasound yokuxilonga.Ngesikhathi esifanayo, futhi kuwuhlobo lwamandla.Uma umthamo othile we-ultrasound usakazeka ezintweni eziphilayo, ngokusebenzisana kwazo, ungabangela izinguquko emsebenzini kanye nesakhiwo sezinto eziphilayo, okungukuthi, umphumela we-ultrasonic biological.

Imiphumela ye-ultrasound kumaseli ikakhulukazi ihlanganisa umphumela oshisayo, umphumela we-cavitation kanye nomphumela wemishini.Umphumela oshisayo ukuthi lapho i-ultrasound isakazeka phakathi nendawo, ukungqubuzana kuvimbela ukudlidliza kwamangqamuzana okubangelwa i-ultrasound futhi kuguqule ingxenye yamandla ibe ukushisa okuphezulu kwendawo (42-43 ℃).Ngenxa yokuthi izinga lokushisa elibucayi elibulalayo lezicubu ezivamile lingu-45.7 ℃, futhi ukuzwela kwezicubu ze-Liu ezivuvukele kuphakeme kunokwezicubu ezivamile, ukuguqulwa kwamangqamuzana e-Liu avuvukele kuphazamiseka kuleli zinga lokushisa, futhi ukuhlanganiswa kwe-DNA, i-RNA namaprotheni kuyathinteka. , Ngakho ukubulala amangqamuzana omdlavuza ngaphandle kokuthinta izicubu ezivamile.

Umphumela we-Cavitation wukuthi ngaphansi kwe-ultrasonic irradiation, ama-vacuoles akhiwa ezintweni eziphilayo.Ngokudlidliza kwama-vacuoles nokuqhuma kwawo okunodlame, kukhiqizwa umfutho we-shear owenziwe ngomshini kanye nesiyaluyalu, okwenza ukuvuvukala kuka-Liu ophe, ukuhlakazeka kwezicubu kanye ne-necrosis.

Ngaphezu kwalokho, lapho ibhamuza le-cavitation liphuka, likhiqiza izinga lokushisa eliphakeme ngokushesha (cishe 5000 ℃) kanye nokucindezela okuphezulu (kufika ku-500 ℃) × 104pa), okungakhiqizwa ukuhlukaniswa okushisayo komphunga wamanzi i-OH radical ne-H athomu, ngu-OH. radical kanye Ukusabela kwe-redox okubangelwa i-athomu ye-H kungaholela ekuwohlokeni kwe-polymer, ukungasebenzi kwe-enzyme, i-lipid peroxidation kanye nokubulawa kwamaseli.

报错 笔记