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Volumn 16, Issue 6, 2000, Pages 2770-2778

Optical traps as force transducers: the effects of focusing the trapping beam through a dielectric interface

Author keywords

[No Author keywords available]

Indexed keywords

COLLOIDS; DIELECTRIC MATERIALS; ERRORS; ESTIMATION; FORCE MEASUREMENT; GEOMETRICAL OPTICS; INTERFACES (MATERIALS); LASER BEAM EFFECTS; POLYMERS; REFRACTIVE INDEX; TRANSDUCERS; TRANSMISSION ELECTRON MICROSCOPY;

EID: 0033898637     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la9904004     Document Type: Article
Times cited : (32)

References (31)
  • 8
    • 6744233711 scopus 로고    scopus 로고
    • note
    • RNAP, an enzyme, carries out the synthesis of an RNA copy of the template DNA - an essential step in gene expression-by moving along the template as it synthesizes the RNA molecule in its entirety. The characterization of the enzyme movement through the steady-state velocity as a function of an applied force provides fundamental information on the enzyme mechanism.
  • 14
    • 0001636529 scopus 로고    scopus 로고
    • Evanescent wave light scattering in combination with two-dimensional (lateral) trapping of the particles has also been used to measure colloidal forces. This approach has been called total internal reflection microscopy (TIRM) [Walz, J. Y. Curr. Opin. Colloid Interface Sci. 1997, 2, 600; Prieve, D. C. Adv. Colloid Interface Sci. 1999, 82, 93] or evanescent wave light scattering microscopy (EWLSM) [Tanimoto, S.; Matsuoka, H.; Yamauchi, H.; Yamaoka, H. Colloid Polym. Sci. 1999, 277, 130]. However, the trap laser in this case is not used as a tweezer trap (see Section 1), and the method of determining the colloidal force does not require a knowledge of trap-induced forces; therefore, the issues of interest in the present paper are not relevant in the case of TIRM/EWLSM. The trapping beam in TIRM/EWLSM remains (essentially) cylindrical and traps the particle laterally while allowing it to execute Brownian motion along the axis. The readers interested in TIRM/EWLSM may consult the above references for details.
    • (1997) Curr. Opin. Colloid Interface Sci. , vol.2 , pp. 600
    • Walz, J.Y.1
  • 15
    • 0033204975 scopus 로고    scopus 로고
    • Evanescent wave light scattering in combination with two-dimensional (lateral) trapping of the particles has also been used to measure colloidal forces. This approach has been called total internal reflection microscopy (TIRM) [Walz, J. Y. Curr. Opin. Colloid Interface Sci. 1997, 2, 600; Prieve, D. C. Adv. Colloid Interface Sci. 1999, 82, 93] or evanescent wave light scattering microscopy (EWLSM) [Tanimoto, S.; Matsuoka, H.; Yamauchi, H.; Yamaoka, H. Colloid Polym. Sci. 1999, 277, 130]. However, the trap laser in this case is not used as a tweezer trap (see Section 1), and the method of determining the colloidal force does not require a knowledge of trap-induced forces; therefore, the issues of interest in the present paper are not relevant in the case of TIRM/EWLSM. The trapping beam in TIRM/EWLSM remains (essentially) cylindrical and traps the particle laterally while allowing it to execute Brownian motion along the axis. The readers interested in TIRM/EWLSM may consult the above references for details.
    • (1999) Adv. Colloid Interface Sci. , vol.82 , pp. 93
    • Prieve, D.C.1
  • 16
    • 0033043961 scopus 로고    scopus 로고
    • Evanescent wave light scattering in combination with two-dimensional (lateral) trapping of the particles has also been used to measure colloidal forces. This approach has been called total internal reflection microscopy (TIRM) [Walz, J. Y. Curr. Opin. Colloid Interface Sci. 1997, 2, 600; Prieve, D. C. Adv. Colloid Interface Sci. 1999, 82, 93] or evanescent wave light scattering microscopy (EWLSM) [Tanimoto, S.; Matsuoka, H.; Yamauchi, H.; Yamaoka, H. Colloid Polym. Sci. 1999, 277, 130]. However, the trap laser in this case is not used as a tweezer trap (see Section 1), and the method of determining the colloidal force does not require a knowledge of trap-induced forces; therefore, the issues of interest in the present paper are not relevant in the case of TIRM/EWLSM. The trapping beam in TIRM/EWLSM remains (essentially) cylindrical and traps the particle laterally while allowing it to execute Brownian motion along the axis. The readers interested in TIRM/EWLSM may consult the above references for details.
    • (1999) Colloid Polym. Sci. , vol.277 , pp. 130
    • Tanimoto, S.1    Matsuoka, H.2    Yamauchi, H.3    Yamaoka, H.4
  • 18
    • 6744276048 scopus 로고    scopus 로고
    • Brownian Fluctuation Spectroscopy of Complex Fluids and Polymer Layers
    • Atlanta, GA, March
    • Jimenez, J.; Ma, M.; Rajagopalan, R. Brownian Fluctuation Spectroscopy of Complex Fluids and Polymer Layers. Paper presented at the APS Centennial Meeting, Atlanta, GA, March 1999.
    • (1999) APS Centennial Meeting
    • Jimenez, J.1    Ma, M.2    Rajagopalan, R.3
  • 20
    • 6744268812 scopus 로고    scopus 로고
    • in press
    • Nhan, D. Brownian Fluctuation Spectroscopy Using Atomic Force Microscopy. M.S. Thesis, University of Houston, Houston, TX, 1998. See also, Ma, H.; Jimenez, J.; Rajagopalan, R. Langmuir 2000, in press.
    • (2000) Langmuir
    • Ma, H.1    Jimenez, J.2    Rajagopalan, R.3
  • 30
    • 0031256171 scopus 로고    scopus 로고
    • Recently, a ray-optics calculation has been used to estimate the trapping efficiency of commercial, high-numerical-aperture microscope objectives by Gu, M.; Ke, P. C.; Gan, X. S. Rev. Sci. Instrum. 1998, 68, 3666.
    • (1998) Rev. Sci. Instrum. , vol.68 , pp. 3666
    • Gu, M.1    Ke, P.C.2    Gan, X.S.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.