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Artículos de revistas sobre el tema "Laser-assisted synthesis"

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Autor: Grafiati
Publicado: 6 de septiembre de 2023

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1

W. Xiong, W. Xiong, Y. Gao Y. Gao, M. Mahjouri-Samani M. Mahjouri-Samani, Y. S. Zhou Y. S. Zhou, M. Mitchell M. Mitchell, J. B. Park J. B. Park y Y. F. Lu Y. F. Lu*. "Laser Assisted Fabrication for Controlled Single-Walled Carbon Nanotube Synthesis and Processing(Invited Paper)". Chinese Journal of Lasers 36, n.º 12 (2009): 3125–32. http://dx.doi.org/10.3788/cjl20093612.3125.

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2

Amendola, Vincenzo. "Laser‐Assisted Synthesis of Non‐Equilibrium Nanoalloys". ChemPhysChem 22, n.º 7 (15 de marzo de 2021): 622–24. http://dx.doi.org/10.1002/cphc.202000987.

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3

Fantoni, R., E. Borsella, S. Piccirillo, C. A. Nannetti, R. Ceccato y S. Enzo. "Laser assisted synthesis of ultrafine silicon powder". Applied Surface Science 43, n.º 1-4 (diciembre de 1989): 308–15. http://dx.doi.org/10.1016/0169-4332(89)90231-6.

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4

Karipbayev, Zh. "TIME-RESOLVED LUMINESCENCE EXCITED WITH N2 LASER OF YAG:CE CERAMICS FORMED BY ELECTRON BEAM ASSISTED SYNTHESIS". Eurasian Physical Technical Journal 17, n.º 1 (junio de 2020): 73–76. http://dx.doi.org/10.31489/2020no1/73-76.

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5

Narayan, Arun, Lars Landström y Mats Boman. "Laser-assisted synthesis of ultra small metal nanoparticles". Applied Surface Science 208-209 (marzo de 2003): 137–41. http://dx.doi.org/10.1016/s0169-4332(02)01352-1.

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6

Torres-Mendieta, Rafael, Ondřej Havelka, Michal Urbánek, Martin Cvek, Stanisław Wacławek, Vinod Vellora Thekkae Padil, Darina Jašíková, Michal Kotek y Miroslav Černík. "Laser-assisted synthesis of Fe-Cu oxide nanocrystals". Applied Surface Science 469 (marzo de 2019): 1007–15. http://dx.doi.org/10.1016/j.apsusc.2018.11.058.

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7

Luches, A., S. A. Mulenko, V. P. Veiko, A. P. Caricato, V. A. Chuiko, Y. V. Kudryavtsev, A. V. Lopato, A. A. Petrov, F. Romano y D. Valerini. "Laser-assisted synthesis of semiconductor chromium disilicide films". Applied Surface Science 253, n.º 15 (mayo de 2007): 6512–16. http://dx.doi.org/10.1016/j.apsusc.2007.01.023.

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8

Wawrzyniak, Jakub, Jakub Karczewski, Jacek Ryl, Katarzyna Grochowska y Katarzyna Siuzdak. "Laser-Assisted Synthesis and Oxygen Generation of Nickel Nanoparticles". Materials 13, n.º 18 (13 de septiembre de 2020): 4068. http://dx.doi.org/10.3390/ma13184068.

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Nowadays, more than ever, environmental awareness is being taken into account when it comes to the design of novel materials. Herein, the pathway to the creation of a colloid of spherical, almost purely metallic nickel nanoparticles (NPs) through pulsed laser ablation in ethanol is presented. A complex description of the colloid is provided through UV-vis spectroscopy and dynamic light scattering analysis, ensuring insight into laser-induced nanoparticle homogenization and size-control of the NPs. The transmission electron spectroscopy revealed spherical nanoparticles with a narrow size distribution, whereas the energy-dispersive X-ray spectroscopy accompanied by the X-ray photoelectron spectroscopy revealed their metallic nature. Furthermore, an example of the application of the colloidal nanoparticles is presented, where a quick, five-min ultrasound modification results in over an order of magnitude higher current densities in the titania-based electrode for the oxygen evolution reaction.
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9

Crouse, C. A., E. Shin, P. T. Murray y J. E. Spowart. "Solution assisted laser ablation synthesis of discrete aluminum nanoparticles". Materials Letters 64, n.º 3 (febrero de 2010): 271–74. http://dx.doi.org/10.1016/j.matlet.2009.10.060.

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10

Hanus, F. y M. Wautelet. "Kinetics of cw laser‐assisted synthesis of thin CuxTeyfilms". Journal of Applied Physics 68, n.º 7 (octubre de 1990): 3307–12. http://dx.doi.org/10.1063/1.346382.

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11

Yamamoto, Hiroshi, Nobuyuki Iwata, Ryoji Hashimoto y Shingo Ando. "Photon-assisted synthesis of C60 polymers by laser irradiation". Applied Surface Science 253, n.º 19 (julio de 2007): 7977–80. http://dx.doi.org/10.1016/j.apsusc.2007.02.155.

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12

Amin, M., J. Tomko, J. J. Naddeo, R. Jimenez, D. M. Bubb, M. Steiner, J. Fitz-Gerald y S. M. O’Malley. "Laser-assisted synthesis of ultra-small anatase TiO2 nanoparticles". Applied Surface Science 348 (septiembre de 2015): 30–37. http://dx.doi.org/10.1016/j.apsusc.2014.12.191.

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13

Reppert, Jason, Rahul Rao, Malcolm Skove, Jian He, Matthew Craps, Terry Tritt y Apparao M. Rao. "Laser-assisted synthesis and optical properties of bismuth nanorods". Chemical Physics Letters 442, n.º 4-6 (julio de 2007): 334–38. http://dx.doi.org/10.1016/j.cplett.2007.05.076.

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14

Tarasenka, N., N. Tarasenko y V. Pankov. "Preparation of Germanium-Tin Alloy Nanoparticles by Laser-Assisted Techniques in Liquid". International Journal of Nanoscience 18, n.º 03n04 (junio de 2019): 1940049. http://dx.doi.org/10.1142/s0219581x19400490.

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Laser-assisted synthesis of germanium–tin (Ge–Sn) alloy nanoparticles (NPs) using 532-nm laser processing of colloidal solutions produced by laser ablation of Ge in Sn suspension has been demonstrated and studied. Laser-induced rapid heating, subsequent co-melting and re-solidification processes at high cooling rates have been considered to be experimentally achieved at the optimized laser processing parameters. Detailed characterization of the formed Ge–Sn alloys indicated substitution of Sn atoms in the Ge matrix.
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15

Sun, Tingting, Rui Xia, Junli Zhou, Xiaohua Zheng, Shi Liu y Zhigang Xie. "Protein-assisted synthesis of nanoscale covalent organic frameworks for phototherapy of cancer". Materials Chemistry Frontiers 4, n.º 8 (2020): 2346–56. http://dx.doi.org/10.1039/d0qm00274g.

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A protein-assisted synthesis method has been proposed for preparing stable covalent organic frameworks (COFs) with both photothermal and photodynamic activity under the excitation of a laser at a single wavelength.
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16

Stankova, N. E., A. Nikolov, D. Karashanova, N. Nedyalkov y A. Dikovska. "Laser-assisted synthesis of metallic composite nanostructures in aqueous solutions". Journal of Physics: Conference Series 2487, n.º 1 (1 de mayo de 2023): 012013. http://dx.doi.org/10.1088/1742-6596/2487/1/012013.

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Abstract The method of pulsed laser ablation in liquids (PLAL) is applied for synthesis of composite nanostructures on the basis of TiOx and ZnO combined with noble metals like Au, Pt and Pd. The metallic plate immersed in water is laser ablated by nanosecond Nd:YAG pulsed laser irradiation. Its fundamental wavelength and the fourth harmonic are used, respectively, to produce and to modify the morphology and structure of the nano-objects. The synthesis procedure consists of two consecutive steps: laser ablation of the selected metal targets followed by unfocused laser beam irradiation of the initial colloids of nanostructures. The phase composition, structural and the shape and size morphological features were assessed by analytical method – transmission electron microscopy (TEM) in its main modes – Bright Field TEM (BF TEM), High Resolution TEM (HRTEM) and Selected Area Electron Diffraction (SAED). Formation of bimetallic polycrystalline alloys and Pt/Ti(TixOy) and Pd/Ti(TixOy) core-shell nanoparticles was founded.
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17

Koinkar, Pankaj, Kohei Sasaki, Tetsuro Katayama, Akihiro Furube y Satoshi Sugano. "Laser assisted synthesis of WS2 nanorods by pulsed laser ablation in liquid environment". International Journal of Modern Physics B 35, n.º 14n16 (24 de junio de 2021): 2140007. http://dx.doi.org/10.1142/s0217979221400075.

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Two dimensional (2D) materials are widely attracting the interest of researchers due to their unique crystal structure and diverse properties. In the present work, tungsten disulfide (WS[Formula: see text] nanorods were synthesized by a simple method of pulsed laser ablation in liquid (PLAL) environment. The prepared WS2 are analyzed by field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), UV-visible spectroscopy (UV-vis) and Raman spectroscopy to confirm the surface morphology, phase and structure. A possible growth mechanism of WS2 is proposed. This study indicates new door for the preparation of 2D materials with specific morphology.
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18

Lu, Cai Xuan, He Ping Li, Peng Chen, Li Hong Xue y You Wei Yan. "Effects of Laser Parameters on the Formation of Al2O3-TiC Coating by Laser-Assisted Combustion". Applied Mechanics and Materials 597 (julio de 2014): 175–83. http://dx.doi.org/10.4028/www.scientific.net/amm.597.175.

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Nowadays, Al2O3-based ceramic coatings have attracted considerable attention for their potential applications as tritium permeation barrier (TPB) in the nuclear reactor. Herein, dense composite ceramic coatings (Al2O3-TiC) have been successfully fabricated by a facile laser-assisted combustion method. The precursor Al-TiO2-C powder mixture underwent combustion synthesis at high temperatures generated by an incident laser, and Al2O3-TiC coatings were thus obtained. Their crystal structures and morphologies were monitored by x-ray diffraction and field emission scanning electron microscopy. The laser processing parameters, including laser power and laser scanning speed, have been found to play an important role in the microstructure of the products. The optimal laser processing parameters for obtaining Al2O3-TiC coating were 4kW in laser power and 6mm/s in laser scanning speed. The results in this paper may be beneficial to the future study of other coatings fabricated by laser-assisted combustion.
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19

Yousef, Yu N., G. V. Voronin, S. N. Yousef, A. S. Vvedenskiy, L. Alkharki, N. Y. Shkolyarenko y E. V. Reznikova. "Improved Femtosecond Laser-Assisted Phacoemulsification of Hard Nucleus Cataract". Ophthalmology in Russia 17, n.º 4 (27 de diciembre de 2020): 733–38. http://dx.doi.org/10.18008/1816-5095-2020-4-733-738.

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Purpose: The development and clinical study of improved femtosecond laser-assisted phacoemulsification (PE) technology of hard nucleus cataract.Patients and methods. Improved femtosecond laser-assisted PE of hard nucleus cataract performed in 83 patients (93 eyes) (1st group), known femtosecond laser-assisted PE technique performed in 72 patients (78 eyes) (2nd group), torsional PE performed in 81 patients (89 eyes) (3rd group). The degree of intraoperative myosis, effective ultrasound time, corneal endothelial cell loss were evaluated in all groups.Results. Femtosecond laser-assisted PE is an effective technique for hard nucleus cataract removal, which can significantly reduce the energy ultrasonic load on the eye tissue. The proposed method for the instillation of prostaglandin synthesis inhibitors and the observance of the minimum possible interval between the first and second stages of the operation can prevent significant intraoperative narrowing of the pupil. A significant narrowing of the pupil by more than 2 mm after the femtolaser stage was noted in 7 (7.5 %) cases in the 1st group of patients, in 15 (16.9 %) cases in the 2nd group, in 5 (6.4 %) cases in the 3rd group. The results of the study has shown a significant decrease in the effective ultrasound time for a femtosecond laser-assisted PE compared with a torsional PE. The effective ultrasound time was in the 1st group (improved technology of femtosecond laser-assisted PE) — 3.81 ± 0.75, in the 2nd group (known technology of the femtosecond laser-assisted PE) — 5.23 ± 1.07 s (p < 0.05), in the 3rd group (OZil technology) — 8.67 ± 1.83 s (p < 0.05). The decrease in the effective ultrasound time has become a determining factor in reducing the loss of corneal endothelial cells in both femtosecond laser-assisted PE technologies compared to torsional PE. The average loss of corneal endothelial cells 3 months after surgery was 8.7 ± 1.8 % in the 1st group, 10.3 ± 2.1% in the 2nd group, 13.5 ± 2.7 % (p < 0.05) in the 3rd group of patients.Conclusion. The proposed improved technology contributes to the solution of some problems that characterize femtosecond laser-assisted PE, and also helps to reduce the effective ultrasound time and the loss of corneal endothelial cells.
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20

Pérez del Pino, Ángel, Andreu Martínez Villarroya, Alex Chuquitarqui, Constantin Logofatu, Dino Tonti y Enikö György. "Reactive laser synthesis of nitrogen-doped hybrid graphene-based electrodes for energy storage". Journal of Materials Chemistry A 6, n.º 33 (2018): 16074–86. http://dx.doi.org/10.1039/c8ta03830a.

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21

Zhang, Jin, Michael Post, Teodor Veres, Zygmunt J. Jakubek, Jingwen Guan, Dashan Wang, Francois Normandin, Yves Deslandes y Benoit Simard. "Laser-Assisted Synthesis of Superparamagnetic Fe@Au Core−Shell Nanoparticles". Journal of Physical Chemistry B 110, n.º 14 (abril de 2006): 7122–28. http://dx.doi.org/10.1021/jp0560967.

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22

Peng, Zhangquan, Bernd Spliethoff, Bernd Tesche, Thomas Walther y Karl Kleinermanns. "Laser-Assisted Synthesis of Au−Ag Alloy Nanoparticles in Solution". Journal of Physical Chemistry B 110, n.º 6 (febrero de 2006): 2549–54. http://dx.doi.org/10.1021/jp056677w.

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23

Kawakami, Mitsuhisa, Agung Budi Hartanto, Yoshiki Nakata y Tatsuo Okada. "Synthesis of ZnO Nanorods by Nanoparticle Assisted Pulsed-Laser Deposition". Japanese Journal of Applied Physics 42, Part 2, No.1A/B (15 de enero de 2003): L33—L35. http://dx.doi.org/10.1143/jjap.42.l33.

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24

Wochnowski, C. y S. Metev. "UV-laser-assisted synthesis of iodine-doped electrical conductive polythiophene". Applied Surface Science 186, n.º 1-4 (enero de 2002): 34–39. http://dx.doi.org/10.1016/s0169-4332(01)00617-1.

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25

Koleva, M. E., N. N. Nedyalkov, N. Fukata, W. Jevasuwan, S. Amoruso, T. Koutzarova, G. V. Avdeev, B. Georgieva y D. Karashanova. "Laser-assisted approach for synthesis of plasmonic Ag/ZnO nanostructures". Superlattices and Microstructures 109 (septiembre de 2017): 886–96. http://dx.doi.org/10.1016/j.spmi.2017.06.007.

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26

Zhou, Yun Shen, Li Sha Fan, Zhi Qiang Xie, Lan Jiang, Jean-François Silvain y Yong Feng Lu. "Laser-assisted vibrational control of precursor molecules in diamond synthesis". Current Opinion in Solid State and Materials Science 19, n.º 2 (abril de 2015): 107–14. http://dx.doi.org/10.1016/j.cossms.2014.10.003.

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27

Almeida, Amelia, Dheeraj Gupta, Carole Loable y Rui Vilar. "Laser-assisted synthesis of Ti–Mo alloys for biomedical applications". Materials Science and Engineering: C 32, n.º 5 (julio de 2012): 1190–95. http://dx.doi.org/10.1016/j.msec.2012.03.007.

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28

Shukla, Abhishek, B. K. Pandey, S. C. Singh, K. N. Uttam, J. Shah, R. K. Kotnala, Alok Kumar y R. Gopal. "Liquid-Assisted Pulsed Laser Ablation Synthesis of Titanium Ferrite Nanomaterials". Materials Focus 4, n.º 5 (1 de octubre de 2015): 327–32. http://dx.doi.org/10.1166/mat.2015.1268.

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29

Abdelhamid, Hani Nasser. "Laser Assisted Synthesis, Imaging and Cancer Therapy of Magnetic Nanoparticles". Materials Focus 5, n.º 4 (1 de agosto de 2016): 305–23. http://dx.doi.org/10.1166/mat.2016.1336.

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30

Varadarajan, V. y D. P. Norton. "CuGaO2 thin film synthesis using hydrogen-assisted pulsed laser deposition". Applied Physics A 85, n.º 2 (31 de agosto de 2006): 117–20. http://dx.doi.org/10.1007/s00339-006-3667-0.

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31

Peng, Yudong, Jianyun Cao, Jie Yang, Wenji Yang, Chao Zhang, Xiaohong Li, Robert A. W. Dryfe, Lin Li, Ian A. Kinloch y Zhu Liu. "Laser Assisted Solution Synthesis of High Performance Graphene Supported Electrocatalysts". Advanced Functional Materials 30, n.º 32 (25 de junio de 2020): 2001756. http://dx.doi.org/10.1002/adfm.202001756.

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32

Al-Kattan, Ahmed, Gleb Tselikov, Anton A. Popov y Andrei V. Kabashin. "Plasmonic Si@Au core-satellite nanoparticles prepared by laser-assisted synthesis for photothermal therapy". Journal of Physics: Conference Series 2058, n.º 1 (1 de octubre de 2021): 012008. http://dx.doi.org/10.1088/1742-6596/2058/1/012008.

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Abstract We describe a laser-assisted methodology for the fabrication of Si@Au core-satellite nanostructures for photothermal therapy applications. The methodology consists in laser ablative synthesis of Si and Au NPs in water/ethanol solutions, followed by a chemical modification of the Si NPs by APTMS and their subsequent decoration by the Au NPs. We show that despite a relatively small size (< 40 nm) the formed core-satellites exhibit a strong plasmonic absorption peak centred around 610 nm and having a large tail over 700 nm overlapping with the first optical window of relative tissue transparency. Being relatively small and exempt of any toxic impurity due to ultraclean laser synthesis, the fabricated nanoparticles promise a major advancement of imaging and phototherapy modalities based on plasmonic properties of nanomatererials.
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33

Barmina, Ekaterina V., Bulat A. Mukhametyanov, Oleg V. Uvarov, Igor I. Vlasov, Oleg S. Kudryavtsev, Yurii L. Kalachev, Evangelos Skoulas et al. "Laser-Assisted Synthesis of Composite Nanoparticles of Perovskite BaTiO3 in Aqueous Solutions and Their Optical Properties". Materials 13, n.º 18 (14 de septiembre de 2020): 4086. http://dx.doi.org/10.3390/ma13184086.

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Experimental results are presented on laser-assisted synthesis of composite nanoparticles of perovskite BaTiO3 with gold nanoparticles using the technique of laser ablation in water and aqueous solution of hydrogen peroxide. Nanoparticles of BaTiO3 are generated by near IR laser radiation with pulse durations of 170 fs, 1 ps, and 200 ns. Nanoparticles of barium titanate BaTiO3 (BTO) have tetragonal structure for all used pulse durations. Two ways of synthesis are tested. In the first one a gold target is ablated in the colloidal solution of BaTiO3 nanoparticles. The second way consists of laser exposure of the mixture of colloidal solutions of nanoparticles of BaTiO3 and Au. Synthesized composite nanoparticles are characterized by optical spectroscopy, Raman spectroscopy, X-Ray diffractometry, and Transmission Electron Microscopy. Composite BaTiO3‑Au nanoparticles have the absorption band in the visible range of spectrum and demonstrate plasmonic luminescence.
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34

Zhang, Aodong, Jian Xu, Yucen Li, Ming Hu, Zijie Lin, Yunpeng Song, Jia Qi, Wei Chen, Zhaoxiang Liu y Ya Cheng. "Three-Dimensional Large-Scale Fused Silica Microfluidic Chips Enabled by Hybrid Laser Microfabrication for Continuous-Flow UV Photochemical Synthesis". Micromachines 13, n.º 4 (30 de marzo de 2022): 543. http://dx.doi.org/10.3390/mi13040543.

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We demonstrate a hybrid laser microfabrication approach, which combines the technical merits of ultrafast laser-assisted chemical etching and carbon dioxide laser-induced in situ melting for centimeter-scale and bonding-free fabrication of 3D complex hollow microstructures in fused silica glass. With the developed approach, large-scale fused silica microfluidic chips with integrated 3D cascaded micromixing units can be reliably manufactured. High-performance on-chip mixing and continuous-flow photochemical synthesis under UV irradiation at ~280 nm were demonstrated using the manufactured chip, indicating a powerful capability for versatile fabrication of highly transparent all-glass microfluidic reactors for on-chip photochemical synthesis.
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35

Mbambo, Makhangela C., Saleh Khamlich, Touria Khamliche, Bakang M. Mothudi y Malik Maaza. "Pulsed Nd:YAG laser assisted fabrication of graphene nanosheets in water". MRS Advances 3, n.º 42-43 (2018): 2573–80. http://dx.doi.org/10.1557/adv.2018.275.

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AbstractGraphene nanosheets were prepared by pulsed Nd:YAG laser ablation of graphite target in H2O under ambient conditions. The synthesized graphene nanosheets were characterized by high resolution transmission electron microscope (HRTEM), X-ray diffraction (XRD), Raman spectroscopy and Selected Area Electron Diffraction (SAED). The obtained structural and morphological analysis confirmed that the graphene nanosheets could be formed in an aqueous medium via one step method where a nanosecond pulsed near-infrared (NIR) laser (λ = 1064 nm) is used to ablate the surface of a pure graphite target. Compared to other used chemical methods to synthesis graphene nanosheets, laser ablation is an easy, versatile, environmental friendly and rapidly growing method for the synthesis of nanostructured materials such as graphene nanosheets. This technique showed normal operation in liquid medium (i.e. water or organic) under ambient conditions. Our study confirmed the great potential of laser ablation in liquid method for the fabrication of graphene nanosheets based nanofluids wich has a potential applicatiuon as a heat transfer fluid.
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36

Sulimenkov, Ilya V., Kamil R. Taziev, Vladimir S. Brusov y Viatcheslav I. Kozlovskiy. "Using matrix-assisted ionization method for mass spectral identification of fullerene-dye conjugates". European Journal of Mass Spectrometry 26, n.º 6 (11 de noviembre de 2020): 419–24. http://dx.doi.org/10.1177/1469066720970520.

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Traditional soft ionization methods are not always suitable for mass spectral analysis of complex compounds. Factors such as laser radiation and heating resulting in fragmentations of sample molecules in the case of matrix-assisted laser desorption/ionization and difficulties in preparing suitable sample solutions in the case of electrospray ionization make it impossible to use these methods in some cases. Matrix-assisted ionization was used to analyze products of chemical synthesis involving pyropheophorbide and fullerene. Mass spectra were acquired using a simple effective modification of the Exactive Orbitrap mass spectrometer electrospray interface. Reliable identification of pyropheophorbide-fullerene dyad ions and its derivatives was carried out. An experimental comparison of a matrix-assisted ionization and an electrospray ionization technique demonstrated the significant advantage in sensitivity to the ions under study (approximately 20 times higher) of the matrix-assisted ionization method in this particular study.
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37

Lu, Cai Xuan, He Ping Li, Peng Chen y You Wei Yan. "Laser-Energy-Density Dependent Formation of Al2O3-TiC Coating by Laser-Assisted Combustion". Advanced Materials Research 941-944 (junio de 2014): 2182–89. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.2182.

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Al2O3-TiC composite ceramic coatings were obtained by laser-assisted combustion. Al-TiO2-C precursor powder mixture was coated on a medium-carbon steel substrate. When a laser scanned on the powder mixture, it went through combustion synthesis reaction triggered by the incident laser beam and formed the target products. The microstructure of the obtained coatings with different laser processing parameters was characterized using field emission scanning electron microscopy. The laser energy density, controlled by changing laser power and laser scanning speed, was found to play an important role on the microstructure of the products. The formation mechanism of different micro-morphologies with different laser energy densities was proposed according to thermodynamic calculation.
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38

Shim, Seung Hwan, Naoto Koshizaki, Jong Won Yoon y Kwang Bo Shim. "Laser-Assisted Synthesis of Amorphous/Pseudoamorphous GaN Thin Films and Nanostructures". Key Engineering Materials 317-318 (agosto de 2006): 585–88. http://dx.doi.org/10.4028/www.scientific.net/kem.317-318.585.

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Amorphous/pseudoamorphous GaN was prepared by pulsed-laser ablation at room temperature without any heat treatment. The structure and chemical composition of the specimens were systematically investigated. Laser ablation at low Ar pressure (<50Pa) led to deposition of smooth Ga-rich films, which is independent with laser energy. Under same pressures, as laser energy increased, the film stoichiometry changed from Ga-rich to near stoichiometric composition. Varying background Ar pressure strongly affected the product structure showing little effect on the chemical composition. Under higher pressure than 100 Pa, fine nanoparticles with a size of 5 nm rather than films were deposited on substrate due to the increased collision by plume confining. The optical band-gap of the deposited a-GaN is 2.8 eV for thin films and 3.9 eV for nanoparticles.
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39

PARK, JONGBOK, SUNGHO JEONG, OK HWAN CHA, MUN SEOK JEONG, DO-KYEONG KO y JONGMIN LEE. "FABRICATION OF CARBON NANOSTRUCTURES BY LASER ASSISTED CHEMICAL REACTION". Nano 01, n.º 01 (julio de 2006): 73–76. http://dx.doi.org/10.1142/s1793292006000069.

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In this work, a simple method is reported for the synthesis of bundles of carbon nanostructures under room temperature and atmospheric pressure. A pulsed Nd:YAG laser (355 nm, 10 Hz) is focused into the mixture of ferrocene and xylene solutions to produce the nanostructures in which ferrocene plays the role of a catalyst while xylene is the carbon source for nanostructure growth. During the period of irradiation, the color of solution turns into dark brown from transparent orange. Upon the completion of irradiation, typically for an hour, a variety of bundles of carbon nanostructures are found in the solution. Raman spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) are used to investigate the nanostructures.
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40

Aswad, Mohanad A., Falah A.-H. Mutlak, Majed S. Jabir, Sarah K. Abdulridha, Ala F. Ahmed y Uday M. Nayef. "Laser assisted hydrothermal synthesis of magnetic ferrite nanoparticles for biomedical applications". Journal of Physics: Conference Series 1795, n.º 1 (1 de marzo de 2021): 012030. http://dx.doi.org/10.1088/1742-6596/1795/1/012030.

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41

Alexandrescu, R., A. Crunteanu, R. E. Morjan, I. Morjan, F. Rohmund, L. K. L. Falk, G. Ledoux y F. Huisken. "Synthesis of carbon nanotubes by CO2-laser-assisted chemical vapour deposition". Infrared Physics & Technology 44, n.º 1 (febrero de 2003): 43–50. http://dx.doi.org/10.1016/s1350-4495(02)00158-5.

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42

Akahane, Kouichi, Naokatsu Yamamomto, Makoto Maeda, Hiroshi Takai, Shin-ichi Nakamura, Hiroshi Yamaguchi y Hideyuki Sotobayashi. "Synthesis of carbon nanotubes by laser-assisted alcohol chemical vapor deposition". Physica E: Low-dimensional Systems and Nanostructures 56 (febrero de 2014): 452–55. http://dx.doi.org/10.1016/j.physe.2013.08.018.

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43

Kumar, D., S. Yarmolenko, J. Sankar, J. Narayan, H. Zhou y A. Tiwari. "Pulsed laser deposition assisted novel synthesis of self-assembled magnetic nanoparticles". Composites Part B: Engineering 35, n.º 2 (marzo de 2004): 149–55. http://dx.doi.org/10.1016/j.compositesb.2003.08.002.

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44

Dhonge, Baban P., Tom Mathews, S. Tripura Sundari, R. Krishnan, A. K. Balamurugan, M. Kamruddin, R. V. Subbarao, S. Dash y A. K. Tyagi. "Synthesis of Al2O3 thin films using laser assisted spray pyrolysis (LASP)". Applied Surface Science 265 (enero de 2013): 257–63. http://dx.doi.org/10.1016/j.apsusc.2012.10.191.

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45

Shahid, Shaukat Ali, Farooq Anwar, Muhammad Shahid, Nazia Majeed, Ahmed Azam, Mamoona Bashir, Muhammad Amin, Zahed Mahmood y Imran Shakir. "Laser-Assisted Synthesis of Mn0.50Zn0.50Fe2O4Nanomaterial: Characterization andIn VitroInhibition Activity towardsBacillus subtilisBiofilm". Journal of Nanomaterials 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/896185.

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There is growing interest in the development of novel nanomaterials with potential antimicrobial activity and lesser toxicity. In the current research work, Mn0.5Zn0.5Fe2O4nanoparticles were synthesized via a novel coprecipitation cum laser ablation technique yielding fine spinal structured material. The synthesized nanomaterial was structurally characterized by X-ray diffraction technique which confirmed the formation and the crystalline nature of Mn0.50Zn0.50Fe2O4nanomaterial. The crystallite size determined by Debye-Scherrer’s formula was found to be ~12 nm. The formation of nanoparticles was evidenced by scanning electron microscopy. Energy dispersive X-ray analysis (EDXA) was performed for elemental analysis. The synthesized nanomaterial was interestingly found to be an effective antimicrobial agent and inhibited the growth ofBacillus subtilisbiofilm formation. The 5 µg of Mn0.5Zn0.5Fe2O4nanomaterial dissolved in 1 mL of DMSO showed excellent biofilm inhibitory activity 91.23% ± 1.87 againstBacillus subtilis.
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46

Costa, Anna Luisa, Marina Serantoni, Magda Blosi, Elisa Mercadelli, Laura Esposito, Andreana Piancastelli y Alessandra Sanson. "Microwave Assisted Synthesis of Yb:Y2O3 Based Materials for Laser Source Application". Advanced Engineering Materials 12, n.º 3 (1 de abril de 2010): 205–9. http://dx.doi.org/10.1002/adem.200900272.

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47

Liang, Dewei, Shouliang Wu, Jun Liu, Zhenfei Tian y Changhao Liang. "Co-doped Ni hydroxide and oxide nanosheet networks: laser-assisted synthesis, effective doping, and ultrahigh pseudocapacitor performance". Journal of Materials Chemistry A 4, n.º 27 (2016): 10609–17. http://dx.doi.org/10.1039/c6ta03408j.

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48

Truffert, Jean-Christophe, Ulysse Asseline, Nguyen T. Thuong y Andre Brack. "Synthesis, Characterization and Binding Properties of Peptide-Oligonucleotide Conjugates Containing the Spkk Peptide Motif". Protein & Peptide Letters 2, n.º 3 (diciembre de 1995): 419–24. http://dx.doi.org/10.2174/092986650203220601164632.

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Peptide-oligonucleotide hybrid molecules 6 and 7 have been synthesized by on-line solid phase synthesis using allyloxycarbonyl (Alloc) side chain protection for serine. The conjugates have been characterized by ma.trix-assisted laser desorption ionization time-of-flight mass spectrometry. The interaction of conjugates 6 and 7 with a complementary sequence has been studied by absorption spectroscopy.
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49

Truffert, Jean-Christophe, Ulysse Asseline, Nguyen T. Thuong y Andre Brack. "Synthesis, Characterization and Binding Properties of Peptide-Oligonucleotide Conjugates Containing the Spkk Peptide Motif". Protein & Peptide Letters 2, n.º 3 (diciembre de 1995): 419–24. http://dx.doi.org/10.2174/092986650203220601164632.

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Peptide-oligonucleotide hybrid molecules 6 and 7 have been synthesized by on-line solid phase synthesis using allyloxycarbonyl (Alloc) side chain protection for serine. The conjugates have been characterized by ma.trix-assisted laser desorption ionization time-of-flight mass spectrometry. The interaction of conjugates 6 and 7 with a complementary sequence has been studied by absorption spectroscopy.
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50

Fathima, R. y A. Mujeeb. "Laser Assisted Synthesis of Surfactant-Free Au-Ag Alloy Nanoparticles in Water". ECS Transactions 107, n.º 1 (24 de abril de 2022): 11305–14. http://dx.doi.org/10.1149/10701.11305ecst.

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Surfactant-free nontoxic Au-Ag alloy nanoparticles were synthesized via re-irradiation of laser generated mono metallic colloidal mixtures with 532 nm radiations from Nd: YAG nanosecond laser. The impact of re-irradiating laser energy in alloy formation kinetics was investigated. The alloy formation process was analyzed with UV-Visible absorption spectra at different time intervals of laser irradiation. The generated nanoparticles were characterized with dynamic light scattering size analysis, zeta potential studies, and HRTEM imaging. Photothermal properties of the samples were investigated employing thermal lens method. Alloy formation became faster with a slight blue shift in the plasmonic band wavelength with increase in irradiation energy. Reduction in nanoparticle size and stability were also observed at high irradiation energies.
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