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Volumn 114, Issue 17, 2010, Pages 7780-7786

Stabilization of nanoparticle shells by competing interactions

Author keywords

[No Author keywords available]

Indexed keywords

HOLLOW SHELLS; INTERACTION PARAMETERS; LONG-RANGE REPULSIONS; MONTE CARLO SIMULATION; MULTI-LAYERED; NON-SPHERICAL; REPULSIVE INTERACTIONS; SHORT-RANGE ATTRACTION; SPHERICAL SHELL; STABILITY REGIONS;

EID: 77951914193     PISSN: 19327447     EISSN: 19327455     Source Type: Journal    
DOI: 10.1021/jp1004067     Document Type: Article
Times cited : (22)

References (40)
  • 7
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    • Li, Z.; Wu, J. J. Chem. Phys. 2009, 130, 1651021-1651026
    • (2009) J. Chem. Phys. , vol.130 , pp. 1651021-1651026
    • Li, Z.1    Wu, J.2
  • 8
    • 51849132628 scopus 로고    scopus 로고
    • Archer, A. Phys. Rev. E 2008, 78, 0314021-03140210
    • (2008) Phys. Rev. e , vol.78 , pp. 0314021-03140210
    • Archer, A.1
  • 29
    • 77951912289 scopus 로고    scopus 로고
    • note
    • Unlike the screened Coulombic repulsion, if long-range dipolar repulsion operates between the particles, then the particles may have to jump over the repulsive barrier to reach a minimum. For example, Nikolaides et al. showed that 1.5 μm sized PMMA particles assembled on a water-in-oil droplet in hexagonal arrangement, but the interparticle distance was reported to be 5.7 μm. (38) In such a scenario, close-packing (an arrangement, where particles lie within the attractive well of the neighbors) can be achieved by using capillary interactions. By slowly evaporating the inner fluid, the total surface area of the droplet (or bubble) can be reduced while keeping the number of adsorbed particles per drop constant. Then the attractive capillary forces would organize the particles in close-packed structure. This methodology was used in the experiments reported by Abkarian et al. (32) Clegg et al. reported a different approach in assembling particles on emulsion droplets via fluid demixing. (39) In this approach, a mixture of two liquids containing colloidal particles is cooled to a temperature where the two liquids demix. Because demixing occurs via nucleation of a new phase, the particles readily adsorb as a close-packed monolayer on the nucleated drops. Another possibility would be to use microfluidic channels such as in the case of Subramanian et al., where convective flow of particles can overcome the repulsive barrier. (40)
  • 30
    • 77951918509 scopus 로고    scopus 로고
    • http://phy.syr.edu/condensedmatter/thomson/thomsonapplet.htm.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.