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Halloysite nanotubes (HNT) zvinongoitika zvevhu nanotubes zvinogona kushandiswa muzvigadzirwa zvepamberi nekuda kweiyo yakasarudzika maburi tubular chimiro, biodegradability, uye mechanic uye pamusoro pezvivakwa.Zvisinei, kurongeka kwevhu nanotubes iyi kwakaoma nekuda kwekushaya nzira dzakananga.
a . .Mufananidzo wechikwereti: Captureandcompose/Shutterstock.com
Panyaya iyi, chinyorwa chakaburitswa mujenari ACS Applied Nanomaterials chinopa zano rinoshanda rekugadzira akaodha zvimiro zveHNT.Nekuomesa ma dispersions avo ane aqueous vachishandisa magnetic rotor, ivhu nanotubes akaiswa pane girazi substrate.
Sezvo mvura inoputika, kubvongodza kweGNT aqueous dispersion kunogadzira mauto eshear pane ivhu nanotubes, zvichiita kuti aenderane muchimiro chekukura mhete.Zvinhu zvakasiyana zvinobata HNT patani zvakaongororwa, zvinosanganisira HNT kusungwa, nanotube charge, kuomesa tembiricha, saizi yerotor, uye vhoriyamu yekudonha.
Pamusoro pezvinhu zvemuviri, kuongorora maelectron microscopy (SEM) uye polarizing light microscopy (POM) yakashandiswa kudzidza microscopic morphology uye birefringence yeHNT mhete dzehuni.
Mhedzisiro yacho inoratidza kuti kana iyo HNT inodarika 5 wt%, ivhu nanotubes rinowana kurongeka kwakakwana, uye huwandu hweHNT hwepamusoro hunowedzera kushata kwepamusoro uye ukobvu hweHNT pateni.
Pamusoro pezvo, iyo HNT pateni yakasimudzira kubatanidzwa uye kuwanda kwembeva fibroblast (L929) maseru, ayo akaonekwa achikura pamwe nevhu nanotube kurongeka zvichienderana neanobata-inofambiswa nzira.Saka, nzira yazvino iri nyore uye nekukurumidza yekubatanidza HNT pane yakasimba substrates ine mukana wekugadzira cell-inopindura matrix.
Imwe-dimensional (1D) nanoparticles senge nanowires, nanotubes, nanofibers, nanorods uye nanoribhoni nekuda kweiyo yakatanhamara yemuchina, yemagetsi, yemaziso, inopisa, biological uye magineti zvinhu.
Halloysite nanotubes (HNTs) ivhu remusikirwo nanotubes ane dhayamita rekunze re50-70 nanometers uye mukati memukati we10-15 nanometers ine formula Al2Si2O5(OH)4·nH2O.Chimwe chezvinhu zvakasiyana-siyana zve nanotubes iyi yakasiyana-siyana yemukati / yekunze yemakemikari yakagadzirwa (aluminium oxide, Al2O3 / silicon dioxide, SiO2), iyo inobvumira kusarudzwa kwavo kusarudzwa.
Nekuda kwe biocompatibility uye yakaderera muchetura, aya evhu nanotubes anogona kushandiswa mu biomedical, cosmetics uye kuchengetedza mhuka application nekuti ivhu nanotubes ine yakanakisa nanosafety mumasero akasiyana tsika.Aya evhu nanotubes ane zvakanakira mutengo wakaderera, kuwanikwa kwakakura, uye nyore silane-based chemical modification.
Bata nzira inoreva chiitiko chekupesvedzera kutaridzika kwesero zvichibva pamatanho ejometri senge nano/micro grooves pane substrate.Nekuvandudzwa kweinjiniya yetishu, chiitiko chekubata kubata chave kushandiswa zvakanyanya kukanganisa morphology uye kurongeka kwemaseru.Nekudaro, iyo biological process ye exposure control inoramba isina kujeka.
Basa razvino rinoratidza maitiro akareruka ekuumbwa kweHNT yekukura mhete chimiro.Mukuita uku, mushure mekuisa donho reHNT dispersion kune yakatenderedza girazi siraidhi, donho reHNT rinotsikirirwa pakati penzvimbo mbiri dzinosangana (slide nemagnetic rotor) kuti ive dispersion inopfuura nemucapillary.Chiito chacho chinochengetedzwa uye chinofambiswa.evaporation yeimwe solvent pamucheto we capillary.
Pano, simba rekugera rinogadzirwa nemagineti rotor rinotenderera rinoita kuti HNT iri kumucheto kwecapillary iise panzvimbo inotsvedza nenzira kwayo.Sezvo mvura ichiputika, simba rekubata rinopfuura simba rekupinza, richisunda mutsara wekubatanidza wakananga pakati.Nokudaro, pasi pe synergistic effect ye shear force uye capillary force, mushure mekubuda kwemvura yakakwana, muti-ring pattern yeHNT inoumbwa.
Pamusoro pezvo, mibairo yePOM inoratidza kujeka kwebirefringence yeanisotropic HNT chimiro, icho mifananidzo yeSEM ​​inoratidzira kuenzanirana kwevhu nanotubes.
Pamusoro pezvo, masero eL929 akagadzirwa pagore-mhete yevhu nanotubes ane akasiyana-siyana eHNT akaongororwa zvichibva pane inofambiswa-inofambiswa nzira.Nepo, masero eL929 airatidza kugoverwa zvisina tsarukano pavhu nanotubes muchimiro chekukura mhete ne0.5 wt.% HNT.Mune zvimiro zvevhu nanotubes ine NTG yekusangana kwe5 uye 10 wt%, masero akareba anowanikwa achitevedza nzira yevhu nanotubes.
Mukupedzisa, macroscale HNT kukura mhete madhizaini akagadzirwa achishandisa inodhura-inoshanda uye hunyanzvi nzira yekuronga nanoparticles nenzira yakarongeka.Kuumbwa kwechimiro chevhu nanotubes kunonyanya kukanganiswa neHNT concentration, tembiricha, kubhadharisa pamusoro, saizi yerotor, uye vhoriyamu yekudonha.HNT kutariswa kubva pa5 kusvika pa10 wt.% yakapa hurongwa hwevhu hwakaodha kwazvo, nepo pa5 wt.% aya arrays airatidza birefringence ine mavara akajeka.
Kurongeka kwevhu nanotubes pamwe nekutungamira kwesimba rekuveura kwakasimbiswa uchishandisa SEM mifananidzo.Nekuwedzera kweiyo NTT concentration, ukobvu uye roughness yeNTG coating inowedzera.Saka, basa riripo rinopa nzira iri nyore yekuvaka zvivakwa kubva nanoparticles pamusoro penzvimbo huru.
Chen Yu, Wu F, He Yu, Feng Yu, Liu M (2022).Chimiro che "miti yemhete" yehalloysite nanotubes yakaunganidzwa nekudengenyeka inoshandiswa kudzora kurongeka kwesero.Applied nanomaterials ACS.https://pubs.acs.org/doi/full/10.1021/acsanm.2c03255
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Bhavna Kaveti munyori wesainzi anobva kuHyderabad, India.Ane MSc uye MD kubva kuVellore Institute of Technology, India.mune organic uye yemishonga chemistry kubva kuYunivhesiti yeGuanajuato, Mexico.Basa rake rekutsvagisa rine chekuita nekusimudzira uye kuumbwa kwemamorekuru ebioactive zvichibva pane heterocycles, uye ane ruzivo mune akawanda-nhanho uye akawanda-chikamu synthesis.Munguva yekutsvagisa kwake kwachiremba, akashanda pakugadzira kwakasiyana heterocycle-based akasungwa uye akasanganiswa peptidomimetic mamorekuru anotarisirwa kuve nehunyanzvi hwekuwedzera kushanda kwebiological chiitiko.Paainyora dissertation uye mapepa ekutsvagisa, akaongorora kuda kwake kunyora kwesainzi nekutaurirana.
Cavity, Buffner.(Gunyana 28, 2022).Halloysite nanotubes inokura muchimiro che "annual rings" nenzira iri nyore.Azonano.Yakadzorerwa Gumiguru 19, 2022 kubva https://www.azonano.com/news.aspx?newsID=39733.
Cavity, Buffner."Halloysite nanotubes inokura se'maringi epagore' nenzira iri nyore".Azonano.Gumiguru 19, 2022.Gumiguru 19, 2022.
Cavity, Buffner."Halloysite nanotubes inokura se'maringi epagore' nenzira iri nyore".Azonano.https://www.azonano.com/news.aspx?newsID=39733.(Kubva Gumiguru 19, 2022).
Cavity, Buffner.2022. Halloysite nanotubes yakakura mu "maringi egore" nenzira iri nyore.AZoNano, yakasvika 19 Gumiguru 2022, https://www.azonano.com/news.aspx?newsID=39733.
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