ReviewSeparations based on the mechanical forces of light
Section snippets
Introduction: mechanical forces of light on particles
Indisputably, the matter–photon interaction is one of the most important subjects in modern science and technology, with a number of examples including photosynthesis, spectroscopy, and lithography. A photon as a particle has an energy hν and a momentum hk/2π, where ν and k are the frequency and wavevector of the photon, respectively, and h is Planck's constant. In a matter–photon interaction, therefore, both the energy conservation law and the momentum conservation law should be observed. In
Photophoresis of micron-sized particles
Photophoresis literally means the movement of small (micron-sized) particles by the influence of light. The forces imparting the movement can be categorized into two cases depending whether light induces the particle movement directly or indirectly. The indirect force known as the radiometric force results from the molecular collisions at a higher rate from the heated side of a particle than from the other side. Since the force is induced by the heating of a particle, the particle should be
Molecule optics
In photon optics, a beam of photons is focused with a photon lens. In other words, the external degrees of photons are manipulated in photon optics. In ion optics, the external motions of ions are manipulated with an ion lens consisting of a set of electrodes. Recent progress in the manipulation of atoms using light forces has opened up a new field of atom optics, demonstrating atom cooling, Bose–Einstein condensation, atom lenses, etc. [4]. Molecule optics is a natural expansion of atom
Acknowledgements
This work was supported by the Center for Advanced Bioseparation Technology and the BK21 program of Korea.
References (39)
Biophys. J.
(1992)- et al.
Talanta
(1999) - et al.
Anal. Chim. Acta
(2000) - et al.
Adv. AT. Mol. Opt. Phys.
(2000) - et al.
Phys. Rep.
(1994) Proc. Natl. Acad. Sci. U.S.A.
(1997)Phys. Rev. Lett.
(1970)- et al.
Phys. Rev. Lett.
(1978) - et al.
Laser Cooling and Trapping
(1999)
Appl. Phys. Lett.
Langmuir
Appl. Optics
Opt. Lett.
J. Microcolumn Sep.
Anal. Chem.
Anal. Chem.
Anal. Chem.
Appl. Phys. Lett.
Cited by (36)
Microfluidic devices for cell manipulation
2021, Microfluidic Devices for Biomedical ApplicationsRedistribution of fluorescent molecules at the solid/liquid interface with total internal reflection illumination
2016, TalantaCitation Excerpt :This kind of interaction is fundamentally significant because it provides a non-invasive way to manipulate the dynamics of single molecules within a long distance at liquid-solid interface. This concept can be potentially extended to develop novel separation modalities such as photo-modulated chromatography (e.g. photophoresis) by modifying light switchable molecules on the chromatography surface [12,13]. The trapping and repulsion effect can thus be logically controlled in a non-invasive way.
Discovering the feasibility of using the radiation forces for recovering rare earth elements from coal power plant by-products
2015, Advanced Powder TechnologyCitation Excerpt :This suggests that, by utilizing the radiation forces, the various components contained in a coal ash can be spatially separated and recovered without the need of using extraction solvents and leaching acids. Use of a laser beam to manipulate and separate micron/nano-size particles has been reported [18–25]. In these studies, separation of transparent particles such as glass, silica, PMMA, polystyrene, nickel and aluminum oxides particles in water using a loosely focused Gaussian beam were investigated.
Microfluidic devices for cell manipulation
2013, Microfluidic Devices for Biomedical ApplicationsAnalysis and Modeling of Electro-osmosis Based on the Modified Poisson-Boltzmann Equation
2019, Dongbei Daxue Xuebao/Journal of Northeastern UniversityNonlinear dynamics of dipoles in microwave electric field of a nanocoaxial tubular reactor
2019, Molecular Physics