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A Dual Effect of Au-Nanoparti.les on Nuclei. Aci. Cholesteri. Li.ui.-Crystalli.e Parti.les

Journal of Bi.materi.ls and Nanobi.technology 2011年第4期2卷 461-471页

作者： Yuri.M. Yevdoki.ov Sergey G. Skuri.i. victor i. salyanov Vladi.i. i. Popenko victor M. Rudoy Ol,ga V. Dement′eva Eleonora V. Shtykova 不详

Au-nanoparti.les (si.e about 2 nm, but not 5 or 15 nm) are capable of effecti.ely i.corporati.g i.to quasi.emati. layers of parti.les of cholesteri. li.ui.-crystalli.e di.persi.n formed by double-stranded nuclei. aci. molecules of vari.us fami.i.s (DNA and poly(i.xpoly(C)). Thi. Au-si.e-dependent process i. accompani.d by a decrease i. ampli.udes of abnormal bands i. the CD spectra speci.i. to i.i.i.l cholesteri. li.ui.-crystalli.e di.persi.ns and si.ultaneously by an appearance of plasmon resonance band i. vi.i.le absorpti.n spectrum. The study of properti.s of parti.les of cholesteri. li.ui.-crystalli.e di.persi.n treated wi.h Au-nanoparti.les by means of vari.us physi.o-chemi.al methods demonstrates that i.corporati.n of Au-nanoparti.les i.to quasi.emati. layers of these parti.les results i. two effects: i. i. faci.i.ates reorgani.ati.n of the spati.l cholesteri. structure of parti.les, and i.) i. i.duces the formati.n of Au-clusters i. the content of parti.les. i. i. not excluded that these effects represent a possi.le reason for genotoxi.i.y of Au-nanopar- ti.les.

关键词： Double-Stranded Nuclei. Aci.s Gold Nanoparti.les Nuclei. Aci. Li.ui.-Crystalli.e Di.persi.ns Ci.cular Di.hroi.m Structure of Lyotropi. Li.ui. Crystals of (Bi.)Polymers Genotoxi.y of Nanoparti.les

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Novel Bi.materi.l for NCT - “Ri.i.” Parti.les of (DNA-gadoli.i.m) Li.ui.-Crystalli.e Di.persi.ns

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Journal of Bi.materi.ls and Nanobi.technology 2011年第3期2卷 281-292页

作者： Yuri.M. Yevdoki.ov victor i. salyanov Sergey V. Akuli.i.hev Vladi.i. M. Skorki. Pavel V. Spi.i. Natali.a N. Orlova Vladi.i. i. Popenko Vladi.i. S. Prassolov 不详

The formati.n and physi.o-chemi.al properti.s of bi.materi.l, based on double-stranded (ds) DNA molecules and beari.g hi.h concentrati.n of gadoli.i.m, i. descri.ed. Thi. “ri.i.” bi.materi.l demonstrate a few uni.ue properti.s: (i. the ds DNA molecules formi.g complexes wi.h gadoli.i.m are fi.ed i. the spati.l structure of “ri.i.” parti.les, (i.) an abnormal negati.e band i. the ci.cular di.hroi.m spectrum permi.s to follow the formati.n of thi. bi.materi.l;(i.i. local concentrati.n gadoli.i.m i. the content of bi.materi.l can reach 40%. These properti.s show that we are deali.g wi.h a novel type of bi.materi.l strongly enri.hed by gadoli.i.m. Thi. opens a gateway for practi.al appli.ati.n of thi. bi.materi.l for neutron-capture reacti.ns. A fi.st attempt to apply thi. materi.l for neutron-capture reacti.n i. combi.ati.n wi.h neutron generator of thermal neutron flux was performed. Posi.i.e result obtai.ed at destructi.n of CHO cells allows one to state that the advantages of thi. bi.materi.l are a si.ple mani.ulati.n wi.h i., a possi.i.i.y to adjust i.s gadoli.i.m content, long-term stabi.i.y of i.s physi.o-chemi.al properti.s, as well as a reduced cost of neutron-capture experi.ent.

关键词： Li.ui.-Crystalli.e DNA Di.persi.ns Cholesteri.s Ci.cular Di.hroi.m Spectrum Gadoli.i.m Neutron-Capture Therapy

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