2011
DOI: 10.1021/ja200737j
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Confinement of Photopolymerization and Solidification with Radiation Pressure

Abstract: Controlling chemical reactions within a small space is a significant issue in chemistry, and methods to induce reactions within a desired position have various potential applications. Here we demonstrate localized, efficient photopolymerization by radiation pressure. We induced a one-photon UV polymerization of liquid acrylate solutions in the optical-trapping potential of a focused near-IR (NIR) laser beam, leading to the confinement of solidification to a minute space with dimensions smaller or equal to one-… Show more

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Cited by 40 publications
(42 citation statements)
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“…To conrm this assumption, sodium azide, which is a well-known quencher of singlet oxygen, 24 was mixed in the solution immediately before laser irradiation. 26 Oxidative polymerization of oPD was induced by singlet oxygen in this study. Fig.…”
Section: Discussion Of the Mechanismmentioning
confidence: 71%
“…To conrm this assumption, sodium azide, which is a well-known quencher of singlet oxygen, 24 was mixed in the solution immediately before laser irradiation. 26 Oxidative polymerization of oPD was induced by singlet oxygen in this study. Fig.…”
Section: Discussion Of the Mechanismmentioning
confidence: 71%
“…35 Nanoplasmonics has extended the field of optical trapping down to the nanometer scale with exciting possibilities for studying single proteins and nanoparticles. [37][38][39][40][41] In this work we report on microdroplet formation and microcrystal growth under cw laser light illumination in a new solute-solvent system as compared to that reported by Yuyama et al 34 However, to observe the qualitatively the same phenomenon we used light intensity roughly six orders of magnitude lower than that used in the quoted work. In this case trapping is approximately 3000Â more efficient than the conventional one and particles of 12 nm in size and even single proteins have been trapped with double-nanohole (DNH) structures with 1-10 mW power.…”
Section: A Introductionmentioning
confidence: 73%
“…Therefore objects much smaller in size than microparticles or several tens of nanometer nanoparticles, such as individual molecules, cannot be trapped by light. 7,[20][21][22][23] The optical trapping of very large molecules has been already demonstrated, namely for polymers, 24,25 J-aggregates, 26 aminoacid clusters, 27 micelles, 28 quantum dots 29 and nanoparticles. by transfer of angular orbital momentum carried by a doughnut-shaped Laguerre-Gauss beam to the particles.…”
Section: A Introductionmentioning
confidence: 99%
“…2 . LDPE will be oxidized under thermal and aerobic conditions, which is a chain free radical reaction and can be divided into three stages, regarded as "chain initiation," "chain growth," and "chain termination," respectively [20]. The three stages are shown in formulas (2), (3), and (4), respectively.…”
Section: Dielectric Properties Measurementmentioning
confidence: 99%