I-Nanoparticles isetyenziselwa ngakumbi kuphando kunye noshishino ngenxa yeepropati zabo eziphuculweyo xa kuthelekiswa nezixhobo ezininzi.I-Nanoparticles zenziwe ngamaqhekeza e-ultrafine ngaphantsi kwe-100 nm ububanzi.Le yixabiso elithile elingenamthetho, kodwa likhethwe ngenxa yokuba kulo bungakanani bobukhulu iimpawu zokuqala ze "impembelelo ebusweni" kunye nezinye iipropati ezingaqhelekanga ezifumaneka kwi-nanoparticles. I-athomu ibonakaliswe phezu komhlaba.Kuye kwaboniswa ukuba iipropati kunye nokuziphatha kwezinto eziphathekayo zitshintsha ngokuphawulekayo xa zakhiwe kwi-nanoscale.Eminye imizekelo yophuculo eyenzekayo xa ukwanda kobunzima kunye namandla, umbane kunye ne-thermal conductivity idibaniswe yi-nanoparticles.
Eli nqaku lixubusha iipropati kunye nokusetyenziswa kwe-alumina nanoparticles.I-Aluminium yiqela le-P yeqela le-3, ngelixa i-oksijini yi-P yeqela le-2.
Ubume be-alumina nanoparticles yi-spherical and white powder.I-alumina nanoparticles (i-liquid kunye neefom eziqinileyo) zihlelwa njengento enokutsha kakhulu kwaye iyacaphukisa, ibangela ukucaphuka kwamehlo kunye nokuphefumla.
Alumina nanoparticlesinokwenziwa ngeendlela ezininzi, kubandakanywa i-ball milling, i-sol-gel, i-pyrolysis, i-sputtering, i-hydrothermal, kunye ne-laser ablation. kulula ukuqokelela ngaphezu kwe-nanoparticles kwiindawo ezinegesi.Kutshanje, iikhemisti kwi-Max-Planck-Institut für Kohlenforschung eMülheim an der Ruhr ziye zafumanisa indlela yokuvelisa i-corundum, eyaziwa ngokuba yi-alpha-alumina, ngendlela ye-nanoparticles esebenzisa indlela elula yomatshini, i-alumina eguquguqukayo kakhulu.
Kwimeko apho i-alumina nanoparticles isetyenziswe kwifom yolwelo, efana ne-aqueous dispersions, izicelo eziphambili zilandelayo:
• Phucula ukuxinana, ukuguda, ukomelela kokwaphuka, ukunganyangeki, ukudinwa kwe-thermal kunye nokumelana nokukrazuka kweemveliso zepolymer zeseramikhi.
Iimbono ezichazwe apha zezo zombhali kwaye azibonakalisi iimbono kunye nezimvo ze-AZoNano.com.
U-AZoNano uthethe noGqr. Gatti, uvulindlela kwinkalo ye-nanotoxicology, malunga nophononongo olutsha abandakanyekayo ekuhloleni ikhonkco elinokwenzeka phakathi kwe-nanoparticle exposure kunye nesifo sokufa komntwana ngokukhawuleza.
I-AZoNano ithetha noNjingalwazi uKenneth Burch waseBoston College.Iqela leBurch liye laphanda ukuba i-epidemiology esekelwe emanzini amdaka (WBE) ingasetyenziswa njani njengesixhobo sokufumana ulwazi lwexesha lokwenyani malunga nokusetyenziswa kweziyobisi ngokungekho mthethweni.
Siye sathetha noDkt Wenqing Liu, uMfundi kunye neNtloko ye-Nanoelectronics kunye neMathiriyeli kwiYunivesithi yaseRoyal Holloway, eLondon, ngoSuku lwaMazwe ngamazwe lwabasetyhini.
I-XBS ye-Hiden (i-Cross Beam Source) ivumela ukujongwa kwemithombo emininzi kwi-MBE deposition applications.Isetyenziswa kwi-molecular beam mass spectrometry kwaye ivumela ukubeka iliso kwi-situ yemithombo emininzi kunye nexesha lokwenene lesiphumo sophawu lolawulo oluchanekileyo lokubekwa.
Funda malunga ne-Thermo Scientific™ Nicolet™ RaptIR FTIR imakroskopu eyilelwe ukukhangela ngokukhawuleza kunye nokuchonga imathiriyeli yomkhondo, izinto eziqukiweyo, ukungcola kunye namasuntswana kunye nokuhanjiswa kwazo kwisampulu.
Ixesha lokuposa: Mar-29-2022