Ulusi wa fluorescent ndi mtundu wa ulusi womwe ungathe kuyamwa kuwala kooneka kapena kwa ultraviolet, kenako nkusintha kuwala kumeneku kukhala kuwala kapena kubwereranso ku mtundu woyambirira pambuyo pa kuwala. Chifukwa cha kuwala kwake, ulusi wa fluorescent umagwiritsidwa ntchito kwambiri mu nsalu zowala, bioengineering ndi mankhwala, ndipo ndi amodzi mwa malo otchuka kwambiri ofufuza zinthu zapamwamba.

Silika wachilengedwe umagwirizana bwino kwambiri ndi zinthu zachilengedwe komanso umagwirira ntchito, ndi mtundu wa ulusi womwe umagwiritsidwa ntchito kwambiri, koma pansi pa kuwala kwa ultraviolet, silika ndi wabuluu wopepuka, wachikasu wopepuka kapena wopanda kuwala. Ukadaulo wosintha majini ndi ukadaulo wopaka utoto wachilengedwe ndi njira zodziwika bwino zopangira silika wopepuka, koma mtengo wake wokwera, chitetezo chofooka komanso mavuto oteteza chilengedwe nawonso ndi odziwikiratu. Chifukwa chake, kudyetsa nyongolotsi za silika ndi zinthu zopanda poizoni, zogwirizana ndi zachilengedwe, zoteteza chilengedwe, zowala kwambiri komanso zotsika mtengo zikuwoneka kuti ndi njira imodzi yabwino kwambiri yopangira silika wopepuka.

Posachedwapa, Fudan University inanena kuti mtundu wa carbon spot (CDs) wopangidwa kuchokera ku masamba a mulberry uli ndi fluorescence yolimba pafupi ndi infrared, yokhala ndi absolute quantum yield (QY) ya 73% ndi half-peak full width (FWHM) ya 20 nm. Ndi dark red emission carbon spot yodziwika bwino kwambiri mpaka pano, ndipo ili ndi biocompatibility yabwino komanso fluorescence stability.

Mbozi za silika, zomwe zimadyetsedwa ndi ma CD, zimakhala zofiira kwambiri ndipo zimatha kukula bwino ndikupanga ma cocoon mwachibadwa, omwe amakhala pinki padzuwa ndi fluoresce wofiira kwambiri pa kuwala kwa ultraviolet. Njira ya kagayidwe ka ma CD ingapezeke kudzera mu kusanthula kwa thupi la mbozi ya silika ndi cocoon yoyesera, kutanthauza kuti ma CD a fluorescent amatengedwa ndi mbozi ya silika kuchokera m'mimba, kenako amasamutsidwa kupita ku silika gland, ndipo pamapeto pake amalowa mu cocoon, ndipo ma CD osayamwa amatulutsidwa ndi ndowe.

Kafukufukuyu ndi nthawi yoyamba kuti ma CD otulutsa mpweya wapafupi ndi infrared agwiritsidwe ntchito podyetsa nyongolotsi za silika kuti apange silika wa fluorescent. Chifukwa ma r-cd amatha kukonzedwa mosavuta kuchokera ku masamba a mulberry pamlingo waukulu, ndipo kuchuluka kwa kupulumuka kwa nyongolotsi za silika kuli pafupi ndi 100%, angagwiritsidwe ntchito pokonzekera silika wa fluorescent ndikukulitsa gawo lake lothandiza mtsogolo.

Masamba a Mulberry Ochokera ku Madontho Ofiira a Kaboni Otulutsa Mpweya Wopatsa Mpweya wa Silika Kuti Apange Masamba a Mulberry Otulutsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya Wopatsa Mpweya "Silk" inasindikizidwa mu Advanced Materials.