Dynamics of Interaction of RBC with optical tweezers

被引:64
作者
Mohanty, SK [1 ]
Mohanty, KS
Gupta, PK
机构
[1] Ctr Adv Technol, Biomed Applicat Sect, Indore 452013, India
[2] Maharaja Sayajirao Univ Baroda, Fac Engn & Technol, Dept Elect Engn, Baroda 390001, Gujarat, India
关键词
D O I
10.1364/OPEX.13.004745
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
It has recently been shown that a red blood cell (RBC) can be used as optically driven motor. The mechanism for rotation is however not fully understood. While the dependence on osmolarity of the buffer led us to conclude that the osmolarity dependent changes in shape of the cell are responsible for the observed rotation, role of ion gradients and folding of RBC to a rod shape has been invoked by Dharmadhikari et al to explain their observations. In this paper we report results of studies undertaken to understand the dynamics of a RBC when it is optically tweezed. The results obtained support our earlier conjecture that osmolarity dependent changes in shape of the cell are responsible for the observed rotation. (C) 2005 Optical Society of America.
引用
收藏
页码:4745 / 4751
页数:7
相关论文
共 17 条
[1]   Optical application and measurement of torque on microparticles of isotropic nonabsorbing material [J].
Bishop, AI ;
Nieminen, TA ;
Heckenberg, NR ;
Rubinsztein-Dunlop, H .
PHYSICAL REVIEW A, 2003, 68 (03) :8
[2]   Light streak tracking of optically trapped thin microdisks [J].
Cheng, Z ;
Chaikin, PM ;
Mason, TG .
PHYSICAL REVIEW LETTERS, 2002, 89 (10) :108303-108303
[3]  
Dasgupta R, 2003, OPT PHOTONICS NEWS, V14, P16, DOI 10.1364/OPN.14.12.000016
[4]   Rotation of transparent, nonbirefringent objects by transfer of the spin angular momentum of light [J].
Dasgupta, R ;
Gupta, PK .
OPTICS LETTERS, 2005, 30 (04) :394-396
[5]   Naturally occurring, optically driven, cellular rotor [J].
Dharmadhikari, JA ;
Roy, S ;
Dharmadhikari, AK ;
Sharma, S ;
Mathur, D .
APPLIED PHYSICS LETTERS, 2004, 85 (24) :6048-6050
[6]   Torque-generating malaria-infected red blood cells in an optical trap [J].
Dharmadhikari, JA ;
Roy, S ;
Dharmadhikari, AK ;
Sharma, S ;
Mathur, D .
OPTICS EXPRESS, 2004, 12 (06) :1179-1184
[7]   Optical alignment and spinning of laser-trapped microscopic particles [J].
Friese, MEJ ;
Nieminen, TA ;
Heckenberg, NR ;
Rubinsztein-Dunlop, H .
NATURE, 1998, 394 (6691) :348-350
[8]   Orientation of flat particles in optical tweezers by linearly polarized light [J].
Galajda, P ;
Ormos, P .
OPTICS EXPRESS, 2003, 11 (05) :446-451
[9]   Complex micromachines produced and driven by light [J].
Galajda, P ;
Ormos, P .
APPLIED PHYSICS LETTERS, 2001, 78 (02) :249-251
[10]   Theoretical investigation of the optical trapping force and torque on cylindrical micro-objects [J].
Gauthier, RC .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1997, 14 (12) :3323-3333