Otu ndị Amerịka na-atụpụta ụzọ ọhụrụ maka ịgbanwe laser microdisk

Ndị otu nnyocha sitere na Harvard Medical School (HMS) na MIT General Hospital kwuru na ha enwetala mgbanwe nke mmepụta nke microdisk laser site na iji usoro PEC etching, na-eme ka ọ bụrụ isi mmalite ọhụrụ maka nanophotonics na biomedicine "na-ekwe nkwa."

(Enwere ike ịgbanwe mmepụta nke microdisk laser site na usoro PEC etching)

N'ọhịa nkenanofotonicsna ọgwụ biomedicine, microdisklasersna lasers nanodisk abụrụla ihe na-ekwe nkwaisi mmalite ọkụna nyocha. N'ọtụtụ ngwa dịka nkwukọrịta fotonik na chip, onyonyo bioimaging na chip, nchọpụta biochemical, na nhazi ozi quantum photon, ha kwesịrị inweta mmepụta laser n'ịchọpụta ogologo ebili mmiri na izi ezi nke eriri dị warara. Agbanyeghị, ọ ka na-esiri ike imepụta laser microdisk na nanodisk nke ogologo ebili mmiri a kpọmkwem n'ọtụtụ buru ibu. Usoro nanofabrication dị ugbu a na-ewebata enweghị usoro nke dayameta diski, nke na-eme ka ọ sie ike ịnweta ogologo ebili mmiri setịpụrụ na nhazi na mmepụta oke laser. Ugbu a, otu ndị nchọpụta sitere na Harvard Medical School na Massachusetts General Hospital's Wellman Center makaỌgwụ Optoelectronicewepụtala usoro ọhụrụ nke ịkpụcha optochemical (PEC) nke na-enyere aka ịhazi ogologo laser nke laser microdisk site na izi ezi nke subnanometer. E bipụtara ọrụ ahụ na akwụkwọ akụkọ Advanced Photonics.

Ịmepụta fotochemical
Dịka akụkọ si kwuo, usoro ọhụrụ nke otu ahụ na-enye ohere imepụta obere laser diski na nanodisk laser arrays nwere ogologo ebili mmiri emission ziri ezi. Isi ihe dị mkpa na ọganihu a bụ iji PEC etching, nke na-enye ụzọ dị irè ma dị mfe iji dozie ogologo ebili mmiri nke microdisc laser. Na nsonaazụ ndị dị n'elu, ndị otu ahụ nwetara microdisks indium Gallium arsenide phosphating nke e ji silica kpuchie na nhazi kọlụm indium phosphide. Ha wee hazie ogologo ebili mmiri laser nke microdisks ndị a kpọmkwem ruo na uru akọwapụtara site na ime photochemical etching na ngwọta sulfuric acid a gwakọtara agwakọta.
Ha nyochakwara usoro na usoro nke ihe e ji eme ihe na fotokemikal (PEC). N'ikpeazụ, ha bufere usoro microdisk nke a na-agbanwe agbanwe na wavelength na polydimethylsiloxane substrate iji mepụta ihe laser nọọrọ onwe ya, nke kewapụrụ onwe ya na wavelength laser dị iche iche. Microdisk nke a rụpụtara na-egosi bandwidth ultra-wideband nke mwepụta laser, yanalaserna kọlụm ahụ na-erughị 0.6 nm na ihe dị n'ime ya na-erughị 1.5 nm.

Imepe ụzọ maka ngwa biomedical
Nsonaazụ a na-emepe ụzọ maka ọtụtụ ngwa nanophotonics ọhụrụ na biomedical. Dịka ọmụmaatụ, laser microdisk nke nwere onwe ya nwere ike ije ozi dị ka barcode physico-optical maka ihe atụ bayọlọji dị iche iche, na-eme ka akara nke ụdị sel ụfọdụ na ebumnuche nke molekul kpọmkwem na nyocha multiplex. A na-eji akara ụdị sel eme ihe ugbu a site na iji biomarkers ọdịnala, dị ka fluorophores organic, quantum dots, na fluorescent beads, nke nwere obosara ikuku obosara. Ya mere, naanị ụdị sel ole na ole kpọmkwem ka enwere ike itinye akara n'otu oge. N'ụzọ dị iche, mmịpụta ìhè band ultra-wrong nke microdisk laser ga-enwe ike ịchọpụta ụdị sel ndị ọzọ n'otu oge.
Ndị otu ahụ nwalere ma gosipụta obere ihe ndị e ji laser microdisk mee nke ọma dị ka ihe ndị na-egosi ihe ndị na-egosi ihe ndị na-egosi ihe ndị na-egosi ihe ndị na-egosi ihe ndị na-egosi ihe ndị na-egosi ihe ndị na-egosi ihe ndị na-eme n'ahụ, ha na-eji ha akpọpụta mkpụrụ ndụ epithelial ara nkịtị MCF10A. Site na mwepụta ha nke ultra-wideband, laser ndị a nwere ike ịgbanwe biosensing, site na iji usoro biomedical na optical a nwapụtara dịka onyonyo cytodynamic, flow cytometry, na nyocha multi-omics. Teknụzụ dabere na PEC etching na-egosi nnukwu ọganihu na laser microdisk. Nhazi nke usoro ahụ, yana nkenke subnanometer ya, na-emepe ohere ọhụrụ maka ọtụtụ ojiji nke lasers na nanophotonics na ngwaọrụ biomedical, yana barcode maka ọnụọgụgụ mkpụrụ ndụ na molekul nyocha.