کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9786120 | 1512666 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical trapping of a spherically symmetric rayleigh sphere: a model for optical tweezers upon cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Optical trapping of a spherically symmetric rayleigh sphere: a model for optical tweezers upon cells Optical trapping of a spherically symmetric rayleigh sphere: a model for optical tweezers upon cells](/preview/png/9786120.png)
چکیده انگلیسی
Optical tweezers have become a popular manipulation and force measurement tool in cellular and molecular biology. However, there is still a lack of a sophisticated model for optical tweezers on trapping cells. In this paper, we present a novel model for optical tweezers to calculate the stiffness of trapping force upon a spherically symmetric Rayleigh sphere, which stimulates a common biological cell. A numerical simulation of this model shows that the stiffness of an optical tweezers system in trapping a cell is significantly smaller than that in trapping a polystyrene bead of the same size. Furthermore, under a small variant condition of the refractive index, the proposed model provides an approximate method which requires only the radial distribution of the trapped cell's refractive index for calculating the stiffness.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 246, Issues 1â3, 1 February 2005, Pages 97-105
Journal: Optics Communications - Volume 246, Issues 1â3, 1 February 2005, Pages 97-105
نویسندگان
Yi-Ren Chang, Long Hsu, Sien Chi,