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Volumn 345, Issue 6201, 2014, Pages 1149-1153

Self-assembly of magnetite nanocubes into helical superstructures

Author keywords

[No Author keywords available]

Indexed keywords

MAGNETITE; MAGNETITE NANOCUBE; NANOCRYSTAL; NANOMATERIAL; UNCLASSIFIED DRUG;

EID: 84949115930     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1254132     Document Type: Article
Times cited : (455)

References (37)
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    • note
    • In that respect, our methodology is akin to assembling nanocrystals using the Langmuir-Blodgett technique. See also (23).
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    • note
    • Large arrays of belts assembled from NCs of various compositions were previously prepared by evaporation-induced assembly (24); although this method bears some similarity to our results (e.g., NC assemblies were prepared at the liquid-air interface), the mechanism of assembly (based on contact-line instabilities) is conceptually different. In fact, we did not observe the formation of any well-defined structures in the absence of an applied magnetic field (see, e.g., fig. S8J).
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    • note
    • The formation of helices, and the self-assembly of NCs in our system in general, is likely facilitated by entropic forces; OA used in large excess during self-assembly may act as a depletion agent, inducing crystallization of NCs during hexane evaporation as reported previously (29).
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    • On the basis of measurements of electrophoretic mobility [see (34)] and the lack of literature reports on electric dipole moments of magnetite nanoparticles, we did not consider electrostatic and electric dipole-dipole interactions in our analysis of interparticle interactions. At the same time, we cannot exclude the possible presence of these interactions in our system.
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    • -1, respectively] indicate that in both cases, the nanocubes are essentially neutral [compare with (37)].
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.