從光鉗到生醫 From Optical Tweezers To Biomedical Application
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Transcript of 從光鉗到生醫 From Optical Tweezers To Biomedical Application
雷射光束
樣本溶液槽
Acceleration & Trapping of Particles By Radiation Pressure,
A. Ashkin, Phys. Rev. Lett. 1970, p156光壓
77
Trapping force and microsphere motion in the fiber-optic trapH. C. Chen, Y. T. Chen, Y. J. Chang, A. Chiou, CLEO 2005
光纖光束操控微粒
Dual beam trapping雙光束光鉗
Acceleration and Trapping of Particles by Radiation Acceleration and Trapping of Particles by Radiation Pressure, Pressure, A. Ashkin Phys. Rev. Lett. 24, 156, 1970A. Ashkin Phys. Rev. Lett. 24, 156, 1970
LaserBeam 1
LaserBeam 2
9
Optical force光學力
Gravitational Force重力
Optical Levitation By Radiation PressureA. Ashkin, J. M. Dziedzic, Appl. Phys. Lett. Vol. 19,
#8, 283,1971光學漂浮
Single beam trapping單光束鉗住
LaserBeam
Observation of a Single-BeamGradient Force Optical Trap for
Dielectric ParticlesA. Ashkin, et al, Opt. Lett. V11, 288, 1986
High NA
A revolution in optical manipulation,
D. G. Grier, Nature, 810, 2003
Rotational control within optical tweezers by useof a rotating aperture
Anna T. O’Neil and Miles J. PadgettOptics Letter 2002
Bio- ~ Stick-like cell manipulation
單分子操控在生醫中的應用
Michelle D WangAnalytical biotechnology
M. D. Wang, Science 1998 , p902
Combined optical trapping and single-molecule fluorescence
M. J. Lang, et.al. J. Biology, 2003, 2: 6.
26
電腦全像光鉗 - 多微粒操控 2004魏名佐,楊坤達,張耀仁,陳慧琪,邱爾德 國立陽明大學生醫
光電所林政宏 國立台灣大學光電所 ; 何恭璿 工業技術研究院光電所
45mW, particle~2.58μm5μm/s反射式
液晶顯示器
Real-time three-dimensional optical micromanipulation of multiple particles and living
cellsP. J. Rodrigo, V. R. Daria, J. Glückstad
Opt. Lett. 2004, p2270.
38
DM2 or BS
CCDCCD
Spectrometer光譜儀
Spectrometer光譜儀
高倍率高度聚焦顯微物鏡
M
Laser Laser L
LEDM
M
CCD
L
L
DM1
IF
Laser tweezers Raman spectrumLTRS system拉曼光鉗系統
40
ν
ν
ν – ∆ν
ν + ∆ν
∆E = h ∆ν,
∆ν : Raman shift(cm-1)
Wavenumber :cm-1
振動能階
v=0
v=1
Rayleighscattering
StokesRaman
scattering
Anti-StokesRaman
scatteringFluorescence螢光
v=0
v=1v=2
無輻射躍遷
基態 h ∆ν
Raman scattering 拉曼散射
43
87 3
95 396 410
03
115
611
89
121
0
151
9
126
5
514.5nm laserpower:10mW
acquisition time:90s
43
δ(C-CH3)
ν(C–C) ν(C=C)
單一活體高溫藍綠藻菌 (TA01)拉曼光譜
β-carotene
Resonance