Improved Procedure on the Microscopic Approach to Determine Colloidal Stability

doi:10.1063/1.1890926

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	Improved Procedure on the Microscopic Approach to Determine Colloidal Stability
	Sun ZW(孙祉伟); Xu SH(徐升华); Liu J; Li YM; Lou LR; Jie JC(解京昌); Sun, ZW (reprint author), Chinese Acad Sci, Inst Mech, NML, Beijing 100080, Peoples R China.
发表期刊	Journal of Chemical Physics
	2005
卷号	122 期号:18 页码:Art.No.184904
ISSN	0021-9606
摘要	We present an improved procedure on the approach to determine the stability of polystyrene spheres at microscopic particle levels by means of artificially induced particle collisions with the aid of optical tweezers [J.Chem.Phys. 119, 2399(2003)]. The basic consideration on this new development is that the major contribution to the sticking probability for a particle pair caught into the optical trap for a short period is from its single collision; therefore, if the trapping duration for the pair is taken to be short, the accumulated sticking probability will be a good approximation for the single collision. The experimental procedure associated with this approximation does not resort to exactly controlling the short trapping duration or request the trapping duration correction as previously reported and therefore it is more practical and applicable for broader range of the stability ratio. The experimental results under different electrolyte concentrations by the new procedure are consistent with those from the turbidity measurements.
学科领域	力学
DOI	10.1063/1.1890926
收录类别	SCI
语种	英语
WOS记录号	WOS:000229275600081
WOS研究方向	Physics
WOS类目	Physics, Atomic, Molecular & Chemical
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/16799
专题	力学所知识产出(1956-2008)
通讯作者	Sun, ZW (reprint author), Chinese Acad Sci, Inst Mech, NML, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Sun ZW,Xu SH,Liu J,et al. Improved Procedure on the Microscopic Approach to Determine Colloidal Stability[J]. Journal of Chemical Physics,2005,122,18,:Art.No.184904.
APA	孙祉伟.,徐升华.,Liu J.,Li YM.,Lou LR.,...&Sun, ZW .(2005).Improved Procedure on the Microscopic Approach to Determine Colloidal Stability.Journal of Chemical Physics,122(18),Art.No.184904.
MLA	孙祉伟,et al."Improved Procedure on the Microscopic Approach to Determine Colloidal Stability".Journal of Chemical Physics 122.18(2005):Art.No.184904.

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