Sabuwar hanya tana samar da microparticles polystyrene masu kama da juna a cikin barga watsawa

Watsewar barbashi na polymer a cikin wani lokaci na ruwa (latexs) suna da aikace-aikace masu mahimmanci da yawa a cikin fasahar sutura, hoton likitanci, da ilimin halitta.Wata ƙungiyar masu bincike ta Faransa yanzu sun ƙirƙiri wata hanya, wanda aka ruwaito a cikin mujallarAngewandte Chemie International Edition, don samar da barga polystyrene dispersions tare da unprecedented manyan da kuma iri barbashi masu girma dabam.Rarraba kunkuntar girman suna da mahimmanci a yawancin fasahohin ci-gaba, amma a baya sun kasance da wahala a samar da photochemically.

Polystyrene, sau da yawa ana amfani da shi don ƙirƙirar kumfa mai faɗaɗa, shima ya dace da samar da latexes, wanda ƙananan ƙananan ƙwayoyin polystyrene ke dakatar da su.Ana amfani da su wajen kera sutura da fenti har ma don dalilai na daidaitawa a cikin microscopy da kuma a cikihoto na likitada binciken ilmin halitta.Yawanci ana samar da su ta thermal ko redox-inducedpolymerizationcikin mafita.

Don samun ikon sarrafawa na waje akan tsarin, ƙungiyoyin Muriel Lansalot, Emmanuel Lacôte, da Elodie Bourgeat-Lami a Jami'ar Lyon 1, Faransa, da abokan aiki, sun juya zuwa matakai masu haske."Polymerization mai haske mai haske yana tabbatar da kulawa na wucin gadi, saboda polymerization yana samuwa ne kawai a gaban haske, yayin da hanyoyin zafi za a iya farawa amma ba a dakatar da su ba da zarar an fara aiki," in ji Lacôte.

Ko da yake an kafa tsarin photopolymerization na UV- ko blue-haske, suna da iyaka.Radiation na gajeren zango yana warwatse lokacin dagirman barbashiya zama kusa da raƙuman radiyo, yana yin latexes tare da girman barbashi girma fiye da tsayin raƙuman ruwa masu shigowa da wahala samarwa.Bugu da ƙari, hasken UV yana da ƙarfin kuzari sosai, ba tare da ambaton haɗari ga mutanen da ke aiki da shi ba.

Don haka masu binciken sun haɓaka tsarin ƙaddamar da sinadarai mai kyau wanda ke amsa daidaitaccen hasken LED a cikin bayyane.Wannan tsarin tsarin polymerization, wanda ya dogara ne akan rini na acridine, stabilizers, da fili na borane, shine farkon wanda ya shawo kan "rufin 300-nanometer," girman girman UV da blue-haske-kore polymerization a cikin tarwatsa matsakaici.A sakamakon haka, a karon farko, ƙungiyar ta sami damar yin amfani da haske don samar da latexes na polystyrene tare da nau'i mai girma fiye da micrometers guda ɗaya kuma tare da diamita na musamman.

Ƙungiyar ta ba da shawarar aikace-aikace fiye da hakapolystyrene."Za a iya yin amfani da tsarin a duk wuraren da ake amfani da latexes, kamar fina-finai, sutura, tallafi don bincike, da sauransu," in ji Lacôte.Bugu da ƙari, za a iya canza ƙwayoyin polymer tare darini mai kyalli, Magnetic clusters, ko wasu ayyuka masu amfani don bincike da aikace-aikacen hoto.Ƙungiyar ta ce ɗimbin nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan sikelin nano da ƙananan ma'auni za a iya samun damar su "kawai ta hanyar daidaita yanayin farko.