Ama-nanoparticles aya ngokuya asetshenziswa ocwaningweni nasezimbonini ngenxa yezakhiwo zawo ezithuthukisiwe uma kuqhathaniswa nezinto eziningi.Ama-Nanoparticles enziwe ngezinhlayiya ze-ultrafine ezingaphansi kuka-100 nm ububanzi.Leli inani elithile elingenangqondo, kodwa lakhethwa ngoba kulobu bukhulu ububanzi izimpawu zokuqala "zemiphumela engaphezulu" nezinye izakhiwo ezingavamile ezitholakala kuma-nanoparticles. ama-athomu avezwa phezulu.Kuye kwaboniswa ukuthi izakhiwo nokuziphatha kwezinto kushintsha kakhulu lapho kwakhiwa kusukela ku-nanoscale.Ezinye izibonelo zezithuthukisi ezenzeka lapho ukwanda kokuqina namandla, ukuqhutshwa kukagesi nokushisa kuhlanganiswe nama-nanoparticles.
Lesi sihloko sidingida izakhiwo kanye nokusetshenziswa kwe-alumina nanoparticles.I-Aluminium iyisici sesikhathi sesi-3 seqembu le-P, kuyilapho i-oksijini iyisici sesikhathi sesibili seqembu le-P.
Ukuma kwe-alumina nanoparticles kuyimpuphu eyisiyingi futhi emhlophe.Ama-nanoparticles e-Alumina (amafomu awuketshezi naqinile) ahlukaniswa njengavutha kakhulu futhi ayacasuka, abangela ukucasuka kwamehlo kanye nemigudu yokuphefumula.
Alumina nanoparticlesingahlanganiswa ngamasu amaningi, okuhlanganisa ukugaya ibhola, i-sol-gel, i-pyrolysis, i-sputtering, i-hydrothermal, ne-laser ablation.I-laser ablation iyindlela evamile yokukhiqiza ama-nanoparticles ngoba ingahlanganiswa ngegesi, i-vacuum noma i-liquid.Uma iqhathaniswa nezinye izindlela, le nqubo yokwengeza inezinzuzo ze-rapidity ye-laser kanye ne-laser ablation. kulula ukuqoqa kunama-nanoparticles ezindaweni ezinegesi.Muva nje, osokhemisi e-Max-Planck-Institut für Kohlenforschung eMülheim an der Ruhr bathole indlela yokukhiqiza i-corundum, eyaziwa nangokuthi i-alpha-alumina, ngendlela ye-nanoparticles kusetshenziswa indlela elula yomshini, i-alumina eqinile kakhulu yebhola.
Esimeni lapho ama-alumina nanoparticles asetshenziswa efomini eliwuketshezi, njengokuhlakazeka kwamanzi, izinhlelo zokusebenza eziyinhloko zimi kanje:
• Thuthukisa ukuminyana, ukushelela, ukuqina kokuqhekeka, ukumelana nokunyakaza, ukumelana nokukhathala okushisayo kanye nokungezwani nokuhuzuka kwemikhiqizo ye-polymer ye-ceramics
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I-AZoNano ikhulume noDkt. Gatti, iphayona emkhakheni we-nanotoxicology, mayelana nocwaningo olusha azibandakanyayo ekuhloleni ukuxhumana okungenzeka phakathi kokuchayeka kwe-nanoparticle kanye nesifo sokufa kwezinsana ngokuzumayo.
I-AZoNano ixoxa noSolwazi Kenneth Burch waseBoston College.Burch Group ibicwaninga ukuthi i-epidemiology esekelwe emanzini angcolile (WBE) ingasetshenziswa kanjani njengethuluzi lokuthola ulwazi lwesikhathi sangempela mayelana nokusetshenziswa kwezidakamizwa ezingekho emthethweni.
Sikhulume noDkt Wenqing Liu, uMfundi kanye neNhloko ye-Nanoelectronics and Materials eRoyal Holloway University, eLondon, ngoSuku Lwamazwe Ngamazwe Lwabesifazane.
Isistimu ye-Hiden's XBS (Cross Beam Source) ivumela ukuqapha kwemithombo eminingi ezinhlelweni zokubeka i-MBE.Isetshenziswa ku-spectrometry ye-molecular beam mass futhi ivumela ukuqapha ku-situ kwemithombo eminingi kanye nokuphuma kwesignali yesikhathi sangempela sokulawula okunembile kokubeka.
Funda mayelana nesibonakhulu se-Thermo Scientific™ Nicolet™ RaptIR FTIR eklanyelwe ukuthola ngokushesha futhi ikhombe izinto zokulandelela, okufakiwe, ukungcola nama-particle kanye nokusatshalaliswa kwakho kusampula.
Isikhathi sokuthumela: Mar-29-2022