Azo tebchaw, nrog rau lawv cov reversible photoisomerization thiab tunable molecular conformations, qhia cov lus cog tseg zoo nyob rau hauv cov ntaub ntawv photoresponsive, ntse coatings, thiab biosensors. Txawm li cas los xij, hauv kev tshawb fawb thiab kev siv tswv yim, lawv tseem ntsib cov teeb meem xws li kev ruaj ntseg tsis txaus, kev ua haujlwm tsis zoo, thiab kev pheej hmoo ntawm kev nyab xeeb. Txhawm rau daws cov teeb meem no, kev daws teeb meem yuav tsum tau tsim los ntawm ntau qhov ntev, suav nrog kev tsim qauv molecular, kev ua kom zoo dua qub, kev tswj hwm ib puag ncig, thiab kev sib koom ua ke, kom ntseeg tau tias kev ua tau zoo thiab nthuav dav daim ntawv thov ciam teb.
Hais txog kev ruaj ntseg, pab pawg azo muaj qhov cuam tshuam rau kev hloov pauv tsis tau isomerization lossis decomposition nyob rau hauv lub zog ntawm lub teeb, cua sov, thiab oxygen, ua rau poob qis hauv kev ua haujlwm photoresponsive. Ib qho kev daws teeb meem yog kev hloov kho cov qauv molecular, xws li qhia cov hluav taws xob muaj zog - rho tawm lossis electron - pub dawb pab pawg ntawm para- txoj hauj lwm ntawm pawg azo los kho cov electron ceev ntawm π-conjugated system, nce lub isomerization activation zog, thiab yog li suppressing unintended transformations. Xwb, sterically hindered substituents tuaj yeem siv los txwv cov thermal stability ntawm cis conformation, ncua nws lifespan. Ib txhij, antioxidants thiab UV absorbers tuaj yeem muab ntxiv rau hauv kev tsim lossis matrix, nrog rau cov pa roj carbon monoxide los tiv thaiv ib puag ncig thiab ua haujlwm kom txo qis kev puas tsuaj los ntawm lwm yam.
Txhim kho kev ua kom haum xeeb yuav tsum tau hais txog ob qho tib si dispersion uniformity thiab molding controllability. Rau kev siv sib txawv, cov kuab tshuaj lossis cov tshuab yaj uas muaj kev sib raug zoo nrog azo molecules yuav tsum tau ua ntej. Agglomeration yuav tsum tau muab tshem tawm los ntawm kev ua ntej -dispersion thiab kev kho ultrasonic kom ntseeg tau tias cov khoom sib txawv ntawm cov molecular faib hauv matrix. Thaum lub sij hawm tsim cov yeeb yaj kiab lossis txhaj tshuaj molding, cov kev taw qhia sab nraud xws li gradient kub tswj thiab kev taw qhia ncab tuaj yeem tswj cov molecular orientation, ntsuas qhov kho qhov muag anisotropy thiab txhua yam khoom. Tsis tas li ntawd, kev siv lub teeb- thaiv thiab qis- qhov rais qhov rais ua haujlwm kub tuaj yeem tiv thaiv kev cuam tshuam ntawm photothermal sab thaum ua, ua kom cov khoom sib xws.
Hais txog kev nyab xeeb, qee cov azo tebchaw tuaj yeem tso cov tshuaj tsw qab ntxhiab tsw phem thaum lub sij hawm degradation, yuav tsum muaj kev tswj hwm hauv qhov tsim thiab kev tswj cov txheej txheem. Ntawm ib sab, qis -toxicity lossis non- lom lwm cov qauv tuaj yeem ua qhov tseem ceeb, lossis yooj yim cleavable thiab tsis muaj teeb meem pab pawg tuaj yeem ntxiv rau qhov kawg ntawm molecular kom txo tau qhov kev pheej hmoo. Ntawm qhov tod tes, kev tiv thaiv nruj thiab kaw- lub voj voog ua haujlwm yuav tsum tau ua raws li tag nrho cov synthesis, kev ua, thiab kev siv lub voj voog, ua ke nrog cov roj khib nyiab thiab cov dej khib nyiab pov tseg kom tiv thaiv kev sib kis ntawm cov khoom phom sij. Kev pov tseg pov tseg yuav tsum ua raws li cov cai ntawm ib puag ncig, suav nrog kev sau cais thiab kev kho tsis raug mob.
Nyob rau theem kev ua haujlwm sib koom ua ke, azo units tuaj yeem ua ke nrog cov khoom siv polymers, nanoparticles, lossis biomolecules los tsim cov kab ke ruaj khov. Cov tshuab no khaws cov khoom siv photoresponsive thaum endowing cov ntaub ntawv nrog cov khoom siv ntxiv, electrochemical, lossis lub hom phiaj. Los ntawm kev tsim qauv modular thiab kev sib koom ua ke sib koom ua ke, lawv tuaj yeem ua tau raws li kev thov hauv cov cheeb tsam nyuaj.
Hauv cov ntsiab lus, cov kev daws teeb meem rau azo tebchaw yuav tsum ua raws li cov qauv tsim qauv molecular, ua ke nrog cov txheej txheem thiab kev tswj hwm ib puag ncig, thiab ntxiv los ntawm kev tiv thaiv kev nyab xeeb thiab kev ua haujlwm ntawm kev sib koom ua ke. Qhov no yuav ua rau lawv tso siab rau lawv lub peev xwm los ua cov khoom siv ntse thaum ua kom muaj kev nyab xeeb thiab ruaj khov.
