Qhov sib txawv tseem ceeb ntawm bioluminescence thiab fluorescence yog tias bioluminescence yog qhov emission ntawm lub teeb los ntawm cov kab mob nyob, whereas fluorescence yog lub emission ntawm lub teeb los ntawm cov ntaub ntawv.
Bioluminescence thiab fluorescence yog cov ntsiab lus tshuaj lom neeg uas cov txheej txheem ob qho tib si tawm lub teeb lub zog vim muaj cov tshuaj tiv thaiv tshwj xeeb. Txawm li cas los xij, lawv txawv ntawm ib leeg raws li qhov chaw ntawm lub teeb thiab tshuaj lom neeg.
YBioluminescence yog dab tsi?
Bioluminescence yog biochemical emission ntawm lub teeb los ntawm cov kab mob nyob. Nws yog ib hom chemiluminescence. Qhov emission no mas tshwm sim nyob rau hauv marine vertebrates thiab invertebrates. Txawm li cas los xij, peb tuaj yeem soj ntsuam bioluminescence hauv qee hom fungi, kab mob xws li kab mob bioluminescent, terrestrial arthropods (fireflies), thiab lwm yam.
Daim duab 01: Emission by Firefly
Feem ntau, cov tshuaj tiv thaiv uas tshwm sim thaum lub sij hawm bioluminescence yog cov tshuaj tiv thaiv ntawm lub teeb-emitting molecule thiab ib qho enzyme. Qhov enzyme no feem ntau hu ua luciferase. Raws li txoj cai, cov tshuaj molecule reactant hu ua luciferin. Peb tuaj yeem siv cov ntsiab lus no kom paub qhov txawv ntawm cov tsiaj txhu bioluminescent: e.g. hluav taws xob luciferin. Thaum lub sij hawm cov tshuaj tiv thaiv no, cov enzyme nyiam catalyze oxidation ntawm cov tshuaj reactant.
Qee zaum, cov enzyme xav tau cofactor ua haujlwm. Piv txwv ntawm cofactors muaj xws li calcium thiab magnesium ions. Cov tshuaj tiv thaiv no qee zaum xav tau lub zog nqa lub zog xws li ATP. Thoob plaws hauv evolution, tus qauv ntawm luciferin txawv me ntsis.
Muaj qhov sib txawv me ntsis hauv cov khoom siv luciferin thiab luciferase, uas ua rau qee qhov sib txawv hauv cov tshuaj lom neeg ntawm bioluminescence. Cov tshuaj tiv thaiv dav dav yog raws li hauv qab no:
Luciferin + O2 → oxyluciferin + lub teeb zog
Fluorescence yog dab tsi?
Fluorescence yog qhov emission ntawm lub teeb los ntawm cov khoom uas tau nqus lub zog yav dhau los. Cov tshuaj no yuav tsum nqus lub teeb lossis lwm yam hluav taws xob hluav taws xob kom tawm lub teeb ua fluorescence. Tsis tas li ntawd, lub teeb emission no yog hom luminescence, txhais tau tias nws emits spontaneously. Lub teeb emitted feem ntau muaj lub wavelength ntev dua li lub teeb absorbed. Qhov ntawd txhais tau hais tias lub teeb hluav taws xob emitted qis dua lub zog nqus.
Thaum lub sijhawm txheej txheem ntawm fluorescence, lub teeb raug tawm los ntawm kev ua kom muaj zog ntawm atoms hauv cov khoom. Lub zog nqus tau feem ntau tso tawm raws li luminescence nyob rau lub sijhawm luv luv, txog 10 -8vib nas this. Qhov ntawd txhais tau hais tias peb tuaj yeem soj ntsuam fluorescence sai li sai tau thaum peb tshem tawm cov hluav taws xob uas ua rau muaj kev zoo siab.
Daim duab 02: Fluorescent Minerals
Muaj ntau daim ntawv thov ntawm fluorescence nyob rau hauv ntau qhov chaw, xws li mineralogy, gemology, tshuaj, tshuaj sensors, biochemical tshawb fawb, dyes, biological detectors, fluorescent teeb tsim, thiab lwm yam. Ntxiv mus, peb muaj peev xwm nrhiav tau cov txheej txheem no raws li ib tug natural. txheej txheem ib yam nkaus; Piv txwv li, nyob rau hauv ib co minerals.
Qhov txawv ntawm Bioluminescence thiab Fluorescence yog dab tsi?
Bioluminescence yog biochemical emission ntawm lub teeb los ntawm cov kab mob nyob, thaum fluorescence yog lub emission ntawm lub teeb los ntawm ib yam khoom uas tau absorbed zog yav dhau los. Qhov sib txawv tseem ceeb ntawm bioluminescence thiab fluorescence yog tias bioluminescence yog emission ntawm lub teeb los ntawm cov kab mob nyob, whereas fluorescence yog lub emission ntawm lub teeb los ntawm cov ntaub ntawv.
Cov infographic hauv qab no teev qhov sib txawv ntawm bioluminescence thiab fluorescence nyob rau hauv daim ntawv tabular rau ib sab sib piv
Summary – Bioluminescence vs Fluorescence
Bioluminescence thiab fluorescence yog cov ntsiab lus tshuaj lom neeg uas cov txheej txheem ob qho tib si tawm lub teeb lub zog vim muaj cov tshuaj tiv thaiv tshwj xeeb. Txawm li cas los xij, lawv txawv ntawm ib leeg raws li qhov chaw ntawm lub teeb thiab tshuaj lom neeg cov tshuaj tiv thaiv. Qhov sib txawv tseem ceeb ntawm bioluminescence thiab fluorescence yog tias bioluminescence yog emission ntawm lub teeb los ntawm cov kab mob nyob, whereas fluorescence yog lub emission ntawm lub teeb los ntawm cov ntaub ntawv.
