Sisebenzisa iikuki ukuphucula amava akho.Ngokuqhubeka nokukhangela le ndawo, uyavumelana nokusebenzisa kwethu iikuki.Iinkcukacha ezongezelelweyo.
IHalloysite nanotubes (HNT) ziinanotubes zodongwe ezenzeka ngokwendalo ezinokuthi zisetyenziswe kwimathiriyeli ephucukileyo ngenxa yesakhiwo sazo esinomgongxo esisodwa setyhubhu, ukubola kwezinto eziphilayo, kunye neepropathi zoomatshini kunye nomphezulu.Nangona kunjalo, ukulungelelaniswa kwezi nanotubes zodongwe kunzima ngenxa yokungabikho kweendlela ezichanekileyo.
​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ . .Umfanekiso wekhredithi: Captureandcompose/Shutterstock.com
Ngokumalunga noku, inqaku elipapashwe kwiphephancwadi i-ACS Applied Nanomaterials liphakamisa isicwangciso esisebenzayo sokwenza izakhiwo eziyalelweyo ze-HNT.Ngokumisa i-dispersions yabo yamanzi usebenzisa i-rotor magnetic, i-nanotubes yodongwe yayilungelelaniswa kwi-substrate yeglasi.
Njengoko amanzi engumphunga, ukushukuma kwe-GNT yokusasazwa kwamanzi kudala imikhosi yokucheba kwi-nanotubes yodongwe, ibangela ukuba zihambelane ngendlela yamakhonkco okukhula.Izinto ezahlukeneyo ezichaphazela ipateni ye-HNT zaphandwa, kubandakanywa ugxininiso lwe-HNT, intlawulo ye-nanotube, ubushushu bomileyo, ubungakanani berotor, kunye nomthamo wethontsi.
Ukongeza kwizinto ezibonakalayo, ukuskena i-electron microscopy (SEM) kunye ne-polarizing light microscopy (POM) zisetyenzisiwe ukufunda i-microscopic morphology kunye ne-birefringence ye-HNT iindandatho zomthi.
Iziphumo zibonisa ukuba xa ugxininiso lwe-HNT ludlula i-5 wt%, i-nanotubes yodongwe ifezekisa ukulungelelaniswa okugqibeleleyo, kwaye i-concentration ye-HNT ephezulu inyusa ubuninzi bomhlaba kunye nobukhulu bepateni ye-HNT.
Ukongeza, ipateni ye-HNT ikhuthaze ukuncamathisela kunye nokwanda kweeseli ze-fibroblast (L929) ze-mouse, eziye zabonwa ukuba zikhule kunye nokulungelelaniswa kwe-nanotube yodongwe ngokwendlela yokudibanisa.Ngaloo ndlela, indlela yangoku elula nekhawulezayo yokulungelelanisa i-HNT kwi-substrates eqinileyo inamandla okuphuhlisa i-matrix ephendula iseli.
I-one-dimensional (1D) i-nanoparticles efana ne-nanowires, i-nanotubes, i-nanofibers, i-nanorods kunye ne-nanoribbons ngenxa yezinto ezibalaseleyo zomatshini, i-electronic, optical, thermal, biological and magnetic properties.
I-Halloysite nanotubes (HNTs) zii-nanotubes zodongwe zendalo ezinobubanzi obungaphandle be-50-70 nanometers kunye nomgodi ongaphakathi we-nanometers we-10-15 kunye nefomula ethi Al2Si2O5 (OH) 4 · nH2O.Enye yeempawu ezikhethekileyo zale nanotubes yindlela eyahlukileyo yokwakheka kweekhemikhali zangaphakathi / zangaphandle (i-aluminium oxide, i-Al2O3 / i-silicon dioxide, i-SiO2), evumela ukuguqulwa kwabo okukhethiweyo.
Ngenxa ye-biocompatibility kunye ne-toxicity ephantsi kakhulu, ezi nanotubes zodongwe zinokusetyenziswa kwi-biomedical, izimonyo kunye nezicelo zokunakekelwa kwezilwanyana kuba i-nanotubes yodongwe ine-nanosafety egqwesileyo kwiinkcubeko ezahlukeneyo zeeseli.Ezi nanotubes zodongwe zineenzuzo zexabiso eliphantsi, ukufumaneka ngokubanzi, kunye nokuguqulwa kwekhemikhali ye-silane elula.
Umkhombandlela woqhakamshelwano ubhekisa kwisenzeko sokuphembelela ukuqhelaniswa kweseli esekwe kwiipateni zejometri ezifana ne-nano/micro grooves kwi-substrate.Ngokuphuhliswa kobunjineli bezicubu, isenzeko solawulo loqhagamshelwano luye lwasetyenziswa ngokubanzi ukuchaphazela i-morphology kunye nombutho weeseli.Nangona kunjalo, inkqubo yebhayoloji yolawulo lokuvezwa ihlala ingacacanga.
Umsebenzi okhoyo ubonisa inkqubo elula yokwakheka kwesakhiwo seringi ye-HNT.Kule nkqubo, emva kokufaka ithontsi ye-HNT ye-dispersion kwisilayidi seglasi engqukuva, ukuhla kwe-HNT kucinezeleka phakathi kweendawo ezimbini zokunxibelelana (isilayidi kunye ne-rotor magnetic) ukuze ibe yi-dispersion edlula kwi-capillary.Isenzo siyagcinwa kwaye siququzelelwe.Ukuvela komphunga we-solvent eninzi kumda we-capillary.
Apha, i-shear force eyenziwa yi-rotor magnetic ejikelezayo ibangela ukuba i-HNT emphethweni we-capillary ifake kwi-sliding surface ngendlela echanekileyo.Njengoko amanzi ephuphuma, amandla oqhagamshelwano adlula amandla okuphina, etyhala umgca woqhagamshelwano ukuya embindini.Ngoko ke, phantsi kwempembelelo ye-synergistic ye-shear force kunye ne-capillary force, emva kokuphuma kwamanzi ngokupheleleyo, ipateni yomthi-ring ye-HNT yenziwa.
Ukongezelela, iziphumo ze-POM zibonisa i-birefringence ebonakalayo yesakhiwo se-anisotropic ye-HNT, apho imifanekiso ye-SEM ibonakalisa ukulungelelaniswa okufanayo kwe-nanotubes yodongwe.
Ukongeza, iiseli ze-L929 ezikhuliswe kwii-nanotubes zodongwe zonyaka-ring kunye nokugxilwa okuhlukeneyo kwe-HNT zavavanywa ngokusekelwe kwindlela eqhutywe ngayo.Nangona, iiseli ze-L929 zibonise ukuhanjiswa okungahleliweyo kwiinanotubes zodongwe ngendlela yamakhonkco okukhula nge-0.5 wt.% HNT.Kwizakhiwo ze-nanotubes zodongwe kunye ne-NTG yoxinaniso lwe-5 kunye ne-10 wt%, iiseli ezide zifunyenwe ecaleni kwendlela ye-nanotubes yodongwe.
Ukuqukumbela, uyilo lwendandatho yokukhula ye-HNT ye-macroscale ye-macroscale yenziwe kusetyenziswa indlela engabizi kakhulu kunye neyobuchule bokuqulunqa i-nanoparticles ngendlela enocwangco.Ukubunjwa kwesakhiwo se-nanotubes yodongwe kuchaphazeleka kakhulu kugxininiso lwe-HNT, ubushushu, intlawulo yomhlaba, ubungakanani be-rotor, kunye nomthamo we-droplet.Ugxininiso lwe-HNT ukusuka kwi-5 ukuya kwi-10 wt.% lunike uluhlu olucwangcisiweyo oluphezulu lwe-nanotubes zodongwe, ngelixa kwi-5 wt.% ezi zintlu zibonise i-birefringence enemibala eqaqambileyo.
Ukulungelelaniswa kwe-nanotubes yodongwe ecaleni kolwalathiso lwamandla okucheba kwaqinisekiswa kusetyenziswa imifanekiso ye-SEM.Ngokunyuka koxinzelelo lwe-NTT, ukutyeba kunye noburhabaxa be-NTG yokwaleka ukwanda.Ngaloo ndlela, umsebenzi okhoyo uphakamisa indlela elula yokwakha izakhiwo ezivela kwi-nanoparticles kwiindawo ezinkulu.
Chen Yu, Wu F, He Yu, Feng Yu, Liu M (2022).Ipateni "yemisesane yomthi" ye-halloysite nanotubes ehlanganiswe yi-agitation isetyenziselwa ukulawula ukulungelelaniswa kweeseli.Isetyenziselwe i-nanomaterials ACS.https://pubs.acs.org/doi/full/10.1021/acsanm.2c03255
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UBhavna Kaveti ngumbhali wenzululwazi waseHyderabad, eIndiya.Uphethe i-MSc kunye ne-MD evela kwiVellore Institute of Technology, eIndiya.kwichemistry yezinto eziphilayo kunye neyonyango evela kwiYunivesithi yaseGuanajuato, eMexico.Umsebenzi wakhe wophando unxulumene nophuhliso kunye nokuhlanganiswa kwee-molecule ze-bioactive ezisekelwe kwi-heterocycles, kwaye unamava kwi-multi-step and multi-component synthesis.Ngexesha lophando lwakhe lobugqirha, wasebenza ekudityanisweni kweemolekyuli ezahlukeneyo ze-heterocycle-based bound and fused peptidomimetic ekulindeleke ukuba zibe namandla okuqhubela phambili umsebenzi webhayoloji.Ngelixa ebhala ii-dissertations kunye namaphepha ophando, waphonononga ukuthanda kwakhe ukubhala kunye nokunxibelelana kwezesayensi.
Cavity, Buffner.(ngoSeptemba 28, 2022).I-Halloysite nanotubes ikhuliswe ngendlela "yezindandatho zonyaka" ngendlela elula.Azonano.Ibuyiselwe nge-19 ka-Okthobha, 2022 ukusuka https://www.azonano.com/news.aspx?newsID=39733.
Cavity, Buffner.“Ii-nanotubes zehalloysite ezikhuliswe 'njengezangqa zonyaka' ngendlela elula”.Azonano.Ngo-Oktobha 19, 2022.Ngo-Oktobha 19, 2022.
Cavity, Buffner.“Ii-nanotubes zehalloysite ezikhuliswe 'njengezangqa zonyaka' ngendlela elula”.Azonano.https://www.azonano.com/news.aspx?newsID=39733.(Ukusukela nge-19 ka-Okthobha ngo-2022).
Cavity, Buffner.2022. I-halloysite nanotubes ekhulile "kwizindandatho zonyaka" ngendlela elula.I-AZoNano, ifunyenwe nge-19 ka-Okthobha 2022, https://www.azonano.com/news.aspx?newsID=39733.
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