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

Tụkwasị na nke ahụ, mgbe cavitation afụ na-agbaji, ọ na-emepụta okpomọkụ dị elu ozugbo (ihe dị ka 5000 ℃) na nrụgide dị elu (ruo 500 ℃) × 104pa), nke nwere ike imebi ikuku mmiri iji mepụta.OH radical na.H atọm.Mmeghachi omume redox kpatara.OH radical na.H atom nwere ike iduga mmebi polymer, inactivation enzyme, peroxidation lipid na igbu cell.


Oge nzipu: Ọktoba 11-2021