Ultrasoundbụ ụdị na-agbanwe n'ibu ebili mmiri na ihe onwunwe ọkara.Ọ bụ ụdị ebili mmiri.Ya mere, enwere ike iji ya chọpụta ihe gbasara physiological na pathological nke ahụ mmadụ, ya bụ, ultrasound diagnostic.N'otu oge ahụ, ọ bụkwa ụdị ike.Mgbe ụfọdụ dose nke ultrasound na-agbasa n'ime ihe ndị dị ndụ, site na mmekọrịta ha, ọ nwere ike ime mgbanwe na ọrụ na nhazi nke ihe ndị dị ndụ, ya bụ, mmetụta ultrasonic biological.

Mmetụta nke ultrasound na sel tumadi gụnyere mmetụta thermal, mmetụta cavitation na n'ibu mmetụta.Mmetụta nke thermal bụ na mgbe ultrasound na-agbasa na ọkara, esemokwu ahụ na-egbochi vibration molekụla nke ultrasound kpatara ma gbanwee akụkụ nke ike n'ime okpomọkụ dị elu nke mpaghara (42-43 ℃).N'ihi na okpomọkụ dị oke egwu nke anụ ahụ nkịtị bụ 45.7 ℃, na mmetụta nke anụ ahụ Liu fụrụ akpụ dị elu karịa nke anụ ahụ nkịtị, metabolism nke mkpụrụ ndụ Liu fụrụ akpụ na-emebi na ọnọdụ okpomọkụ a, a na-emetụta njikọ DNA, RNA na protein. , Ya mere na-egbu mkpụrụ ndụ kansa na-emetụtaghị anụ ahụ nkịtị.

Mmetụta cavitation bụ na n'okpuru irradiation ultrasonic, a na-emepụta vacuoles na ntule.Na vibration nke vacuoles na ha na-eme ihe ike mgbawa, n'ibu shiee nrụgide na ọgba aghara na-eme, nke na-eme ọzịza Liu ọbara ọgbụgba, anụ ahụ disintegration na necrosis.

Ke adianade do, mgbe cavitation afụ na-agbaji, ọ na-emepụta ozugbo elu okpomọkụ (banyere 5000 ℃) na elu mgbali (ruo 500 ℃) × 104pa), nke nwere ike na-emepụta site thermal dissociation nke mmiri vapor OH radical na H atom, site OH. radical na mmeghachi omume redox nke H atom kpatara nwere ike iduga mmebi polymer, inactivation enzyme, peroxidation lipid na igbu cell.

报错 笔记