Qhov sib txawv tseem ceeb ntawm SPR thiab LSPR yog qhov ntev ntawm SPR kev lwj yog qhov sib piv ntev dua thiab muaj kev cuam tshuam ntau dua rau kev cuam tshuam, qhov LSPR lwj ntev yog qhov sib piv luv dua thiab tsis tshua muaj kev cuam tshuam rau kev cuam tshuam.
Lub sij hawm SPR sawv cev rau Nto Plasmon Resonance, thaum lub sij hawm LSPR sawv cev rau Localized Surface Plasmon Resonance. SPR yog qhov muaj txiaj ntsig zoo hauv kev txhim kho qhov rhiab heev ntawm ntau qhov kev txiav txim siab nanoscale sensing daim ntawv thov.
SPR yog dab tsi?
SPR stands rau Nto Plasmon Resonance. Nws yog resonant oscillation ntawm conduction electrons ntawm ib qho kev sib tshuam ntawm cov khoom tsis zoo thiab zoo permittivity. Cov khoom no yuav tsum tau txhawb nqa los ntawm qhov teeb meem teeb meem. Lub tswv yim no muaj txiaj ntsig zoo li lub hauv paus rau feem ntau cov cuab yeej siv rau kev ntsuas ntawm adsorption ntawm cov ntaub ntawv mus rau ib qho chaw hlau. Los yog lwm yam nws tuaj yeem yog qhov chaw ntawm cov hlau nanoparticles. SPR yog lub ntsiab lus tseem ceeb tom qab feem ntau ntawm cov xim-raws li biosensor daim ntaub ntawv thiab nyob rau hauv txawv lab-on-a-chip sensors thiab diatom photosynthesis.
Daim duab 01: Ib qho piv txwv SPR Curve
Cov plasmons saum npoo yog qhov muaj txiaj ntsig zoo hauv kev txhim kho qhov chaw rhiab heev ntawm ntau qhov kev txiav txim siab spectroscopic, uas suav nrog fluorescence, Raman tawg, thiab tiam thib ob. Hauv txoj kev yooj yim tshaj plaws, SPR tuaj yeem siv rau kev tshawb pom ntawm molecular adsorption, suav nrog polymers, DNA< thiab cov proteins. Tsis tas li ntawd, muaj qee qhov kev siv me me uas suav nrog nws siv hauv SPR immunoassay, cov yam ntxwv ntawm cov khoom, kev txhais cov ntaub ntawv, thiab lwm yam.
LSPR yog dab tsi
Lo lus LSPR sawv rau Localized Surface Plasmon Resonance. Lub tswv yim no tuaj yeem txhais tau tias yog cov khoom siv hluav taws xob sib sau ua ke hauv cov hlau nanoparticles uas zoo siab los ntawm lub teeb. Cov electrons no kuj pom muaj qhov ua tau zoo nyob ze ntawm thaj chaw amplitude ntawm lub resonance wavelength. Peb tuaj yeem soj ntsuam tias daim teb no yog qhov chaw nyob ntawm nanoparticle, thiab nws nyhav sai sai ntawm cov nanoparticle lossis dielectric interface rau hauv keeb kwm yav dhau los. Tab sis qhov deb-thaj chaw tawg los ntawm cov particle kuj zoo dua los ntawm resonance.
Daim duab 02: LSPR hauv Kub Nanoparticles
LSP lossis ib cheeb tsam plasmon tuaj yeem txhais tau los ntawm kev kaw ntawm lub plasmon saum npoo hauv nanoparticle (uas muaj qhov loj me uas piv rau lub teeb ntawm lub teeb uas siv los ua kom lub plasmon zoo siab).
Qhov txawv ntawm SPR thiab LSPR yog dab tsi?
Lub sij hawm SPR sawv cev rau Nto Plasmon Resonance, thaum lub sij hawm LSPR sawv cev rau Localized Surface Plasmon Resonance. SPR yog qhov resonant oscillation ntawm conduction electrons ntawm qhov sib cuam tshuam ntawm cov khoom tsis zoo thiab qhov zoo permittivity. LSRP, ntawm qhov tod tes, yog cov khoom siv hluav taws xob sib xyaw ua ke hauv cov hlau nanoparticles uas zoo siab los ntawm lub teeb. Qhov sib txawv tseem ceeb ntawm SPR thiab LSPR yog qhov ntev ntawm SPR kev lwj yog qhov sib piv ntev dua thiab muaj kev cuam tshuam ntau dua rau kev cuam tshuam, qhov LSPR qhov ntev ntawm qhov tawg yog qhov sib piv luv dua thiab tsis tshua muaj kev cuam tshuam rau kev cuam tshuam. Ntxiv mus, qhov ntsuas qhov ntsuas ntawm SPR yog qhov sib piv ntau dua li ntawm LSPR.
Cov hauv qab no infographic teev qhov sib txawv ntawm SPR thiab LSPR hauv daim ntawv teev npe rau ib sab ntawm kev sib piv
Summary – SPR vs LSPR
SPR stands rau Nto Plasmon Resonance, whereas LSPR sawv rau Localized Surface Plasmon Resonance. Qhov sib txawv tseem ceeb ntawm SPR thiab LSPR yog qhov ntev ntawm SPR kev lwj yog qhov sib piv ntev dua thiab muaj kev cuam tshuam ntau dua rau kev cuam tshuam, qhov LSPR qhov ntev ntawm qhov tawg yog qhov sib piv luv dua thiab tsis tshua muaj kev cuam tshuam rau kev cuam tshuam. SPR yog qhov muaj txiaj ntsig zoo hauv kev txhim kho qhov rhiab heev ntawm ntau qhov kev txiav txim siab nanoscale sensing daim ntawv thov.
