Nanowire formation under femtosecond laser radiation in liquid

Miura, Kiyotaka; Hirao, Kazuyuki; Shimotsuma, Yasuhiko

doi:10.5772/17720

Cited by 6 publications

(6 citation statements)

References 97 publications

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“…As manifested in Figure e, the PA signal of DBCO-ZnPc-LP rose in linearity with the temperature, while that of pure water exhibited negligible increase. Moreover, DBCO-ZnPc-LP also exhibited almost no thermal effect to the surroundings and good photoacoustic stability under irradiation of the 808 nm pulsed laser (Figures S9 and f) . The high photostability of DBCO-ZnPc-LP was further confirmed by monitoring its absorption and emission spectra changes under the irradiation of 808 nm continuous and pulsed laser (Figure S10).…”

Section: Resultsmentioning

confidence: 78%

“…Moreover, DBCO-ZnPc-LP also exhibited almost no thermal effect to the surroundings and good photoacoustic stability under irradiation of the 808 nm pulsed laser (Figures S9 and 2f). 61 The high photostability of DBCO-ZnPc-LP was further confirmed by monitoring its absorption and emission spectra changes under the irradiation of 808 nm continuous and pulsed laser (Figure S10). The biostability of DBCO-ZnPc-LP was then evaluated by measuring its absorption and emission spectra in different pH (from 4 to 10) and presence of various biospecies (Ac 4 ManNAz, Zn 2+ , HCO 3…”

Section: Resultsmentioning

confidence: 81%

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In Vivo Imaging-Guided Photothermal/Photoacoustic Synergistic Therapy with Bioorthogonal Metabolic Glycoengineering-Activated Tumor Targeting Nanoparticles

et al. 2017

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Developing multifunctional phototheranostics with nanoplatforms offers promising potential for effective eradication of malignant solid tumors. In this study, we develop a multifunctional phototheranostic by combining photothermal therapy (PTT) and photoacoustic therapy (PAT) based on a tumor-targeting nanoagent (DBCO-ZnPc-LP). The nanoagent DBCO-ZnPc-LP was facilely prepared by self-assembling of a single lipophilic near-infrared (NIR) dye zinc(II)-phthalocyanine (ZnPc) with a lipid-poly(ethylene glycol) (LP) and following modified further with dibenzyl cyclootyne (DBCO) for introducing the two-step chemical tumor-targeting strategy based on metabolic glycoengineering and click chemistry. The as-prepared DBCO-ZnPc-LP could not only convert NIR light into heat for effective thermal ablation but also induce a thermal-enhanced ultrasound shockwave boost to trigger substantially localized mechanical damage, achieving synergistic antitumor effect both in vitro and in vivo. Moreover, DBCO-ZnPc-LP can be efficiently delivered into tumor cells and solid tumors after being injected intravenously via the two-step tumor-targeting strategy. By integrating the targeting strategy, photoacoustic imaging, and the synergistic interaction between PTT and PAT, a solid tumor could be accurately positioned and thoroughly eradicated in vivo. Therefore, this multifunctional phototheranostic is believed to play an important role in future oncotherapy by the enhanced synergistic effect of PTT and PAT under the guidance of photoacoustic imaging.

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Section: Resultsmentioning

confidence: 78%

Section: Resultsmentioning

confidence: 81%

In Vivo Imaging-Guided Photothermal/Photoacoustic Synergistic Therapy with Bioorthogonal Metabolic Glycoengineering-Activated Tumor Targeting Nanoparticles

et al. 2017

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“…The interaction of intense femtosecond radiation with condensed matter is employed in many scientific areas and in different applications (see, e.g. [1][2][3][4][5][6]). Femtosecond laser pulses are mainly used for surface micromachining [3,4], nanowelding [5], nanostructures, nanoparticles and nanowire formation [1,2,6].…”

Section: Introductionmentioning

confidence: 99%

The formation of carbonic and silicon dioxide structured films through the decomposition of molecules on the surface of ionic crystals under the action of IR femtosecond laser radiation

et al. 2016

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This study relates to the formation of carbon and silicon dioxide films that occurs as a result of the decomposition of organic and silicon-containing molecules on the surface of ionic crystals under IR femtosecond laser radiation of moderate intensity (~10 11 W cm −2 ) without molecular decomposition in the gas phase. We found that transparent graphite oxide films formed in the case of CO 2 molecule decomposition.

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“…Femtosecond laser pulses are employed in many scientific areas and in various applications, such as surface micromachining and nanowelding and, also, for the formation of nanostructures, nanoparticles, and nanowires (see, e.g. monographs [1,2] and [3][4][5][6]). Formation of surface films under the action of nanosecond laser radiation to adsorbed chemical compounds was widely studied in the 1980s (see, e.g.…”

Section: Introductionmentioning

confidence: 99%

IR femtochemistry on the surface of wide-gap ionic crystals

et al. 2018

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We have found and studied a phenomenon of the growth of films resulting from decomposition of some organic and silicon-containing molecules adsorbed on the surface of ionic crystals under the action of IR (1.4-5.4 µm) femtosecond radiation of a moderate intensity, ~10 11 W cm −2 . In the gas phase, these molecules do not decompose. Microstructured films consisting of amorphous carbon, graphite oxide, and silicon dioxide have been obtained. The formation of carbon films was accompanied by the appearance of different hydrocarbons in the gas phase. The extensive films of graphite oxide have been obtained. The decomposition of molecules on the surface is apparently caused by non-resonant ionization and subsequent deep fragmentation. The mechanisms of ionization at relatively low intensities of the femtosecond IR radiation have been discussed.

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Nanowire formation under femtosecond laser radiation in liquid

Cited by 6 publications

References 97 publications

In Vivo Imaging-Guided Photothermal/Photoacoustic Synergistic Therapy with Bioorthogonal Metabolic Glycoengineering-Activated Tumor Targeting Nanoparticles

In Vivo Imaging-Guided Photothermal/Photoacoustic Synergistic Therapy with Bioorthogonal Metabolic Glycoengineering-Activated Tumor Targeting Nanoparticles

The formation of carbonic and silicon dioxide structured films through the decomposition of molecules on the surface of ionic crystals under the action of IR femtosecond laser radiation

IR femtochemistry on the surface of wide-gap ionic crystals

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