Article
Multidisciplinary Sciences
Stephan Appelfeller
Summary: The study investigates the self-organized formation of single domain Au silicide nanowires on Si(110), analyzing their growth and properties using STM, PES, and STS techniques. The formation conditions and structural characteristics of the Au silicide nanowires are identified, with widths of about 2 to 3 nm and heights below 1 nm when grown at appropriate annealing temperatures.
SCIENTIFIC REPORTS
(2021)
Review
Optics
K. Monisha, K. Suresh, Sajan D. George
Summary: The conversion of light to heat via the photothermal effect has been used to evaluate thermo-optic properties of materials, but recently it has also been used for the manipulation of colloidal objects and living cells. Optothermal manipulation techniques utilize lower optical power and can manipulate particles over a long range compared to conventional optical tweezers. This review discusses the working mechanisms, concepts, and applications of recently established optothermal techniques, as well as the physical mechanisms behind the optical manipulation.
LASER & PHOTONICS REVIEWS
(2023)
Review
Biochemistry & Molecular Biology
Shunsuke Takahashi, Masahiko Oshige, Shinji Katsura
Summary: DNA replication, repair, and recombination in cells regulate genetic information transfer. Single-molecule imaging provides new insights into the dynamic behaviors of individual biomolecules, helping analyze the interaction between DNA and proteins.
Article
Optics
A. A. Nastulyavichus, S. N. Shelygina, L. F. Khaertdinova, A. A. Rudenko, D. A. Kirilenko, S. Kudryashov, A. A. Ionin
Summary: The study investigates the formation of alloyed Au/Pd nanoparticles through nanosecond laser ablation in water from thin films, studying the weight loss dependence of the films and characterizing the prepared NPs. The size distribution of NPs was obtained using the dynamic light scattering (DLS) method.
LASER PHYSICS LETTERS
(2022)
Article
Optics
Yizhi Zhu, Heng Guo, Qiannan Cui, Jinping Chen, Zhuxin Li, Junfeng Lu, Tien-Chang Lu, Zhengchun Peng, Chunxiang Xu, Caofeng Pan
Summary: Manipulating photocarrier dynamics for luminescent materials is of fundamental importance for controlling the luminescent properties of optoelectronic devices. This study demonstrates the enhancement and prolongation of photoluminescence through interfacial engineering, which enables resonant coupling between localized surface plasmon and exciton. The photocarrier dynamics at the interface are mediated by plasmon-induced hot electron transfer (PHET) and plasmon-induced resonant energy transfer (PIRET) processes, which can be actively switched on and off by varying the excitation laser wavelength. These findings are highly significant for actively manipulating photocarrier dynamics in perovskite luminescent devices.
LASER & PHOTONICS REVIEWS
(2023)
Article
Chemistry, Physical
Natalie Fehn, Ehsan Vahidzadeh, Karthik Shankar, Ueli Heiz, Aras Kartouzian
Summary: This study presents the surface second harmonic generation spectra of supported gold nanoparticles with titania coating, which can provide additional information on the morphology and size distribution of the sample.
APPLIED SURFACE SCIENCE
(2022)
Article
Electrochemistry
Syunnosuke Tanaka, Nagahiro Hoshi, Masashi Nakamura
Summary: The hydrogen evolution reaction (HER) on Au with high chemical stability is activated by alloying it with Ni. We evaluated the HER activity of the AuNi surface alloy prepared at different alloying temperatures on single-crystal Au electrodes in 0.05 M H2SO4. The potential cycle, including the region of Ni oxidative dissolution, further enhanced the HER activity by dealloying Ni, and the activity depended on the surface structure of the Au substrate in the following order: AuNi/Au(100).
Article
Biochemistry & Molecular Biology
Javier Jarillo, Borja Ibarra, Francisco Javier Cao-Garcia
Summary: The analysis and modeling techniques of in vitro single-molecule DNA replication events play a crucial role in understanding the process, with a focus on the real-time kinetics of DNA polymerase and DNA helicase. Proper analysis of single-molecule data is essential for obtaining a detailed picture of the system's dynamics, including kinetics rates, equilibrium constants, and conformational changes. These techniques can also be adapted to study the operation of other proteins involved in nucleic acids metabolism.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2021)
Article
Materials Science, Ceramics
Alexander W. Auner, Mark A. Burton, Lauren A. Nagel, Jonathan C. Crowhurst, David G. Weisz, Kimberly B. Knight
Summary: Different cerium oxides can be formed in high-temperature laser experiments by varying the availability of oxygen and the use of different laser heating methods. X-ray diffraction and Raman spectroscopy suggest the formation of a low structural order Ce2O3/CeO2 mixed structure using pulsed laser ablation in a 1% O2 atmosphere. Crystalline A-type Ce2O3 is formed near the point of laser impingement when using continuous wave laser heating in a 1% O2 environment. The Raman spectrum of Ce218O3 is reported for the first time through experiments conducted with 18O2.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Engineering, Biomedical
Yiporo Danyuo, John David Obayemi, Ali Azeko Salifu, Oluwaseun Kehinde Oyewole, Salifu Tahiru Azeko, Chukwuemeka Joseph Ani, Stella Dozie-Nwachukwu, John Yirijor, Miriam Abade-Abugre, Olushola Segun Odusanya, Fred McBagonluri, Winston Oluwole Soboyejo
Summary: This study enhanced cell-surface interactions and protein absorption by coating nanoscale gold thin films on PDMS substrates with a combination of titanium and microwrinkled/buckled wavy layer of gold. The results show the potential applications of PDMS nanocomposites in implantable biomedical devices.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2021)
Article
Chemistry, Physical
Q. Peng, C. C. Zheng, X. Chen, R. X. Wang, S. J. Xu, X. T. Ge, D. Ding, Z. M. Gong, J. Q. Ning, R. Y. Zhang
Summary: This article investigates the local heating effects induced by laser irradiation in mechanically exfoliated WS2 monolayers and characterizes the resulting inhomogeneous temperature field using photoluminescence spectroscopy. By examining the dependence of excitonic emission energy on temperature, a local temperature up to 213 degrees C was found in the central region of the irradiated area in vacuum. Optical methods like this can be applied to measure local heating effects in 2D semiconductors and van der Waals devices.
APPLIED SURFACE SCIENCE
(2021)
Article
Optics
Jiajie Chen, Zhi Chen, Changle Meng, Jianxing Zhou, Yuhang Peng, Xiaoqi Dai, Jingfeng Li, Yili Zhong, Xiaolin Chen, Wu Yuan, Ho-Pui Ho, Bruce Zhi Gao, Junle Qu, Xueji Zhang, Han Zhang, Yonghong Shao
Summary: Optothermal nanotweezers have been developed as an innovative optical manipulation technique that combines optothermal manipulation and CRISPR-based bio-detection. This innovative approach endows optical tweezers with the ability to identify DNA in aqueous solutions.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Xiaolai Li, Fulong Wang, Chenliang Xia, Hai Le The, Johan G. Bomer, Yuliang Wang
Summary: This paper presents a method that enables robust vertical manipulation of microbubbles by generating plasmonic microbubbles using hydrophilic silica-coated gold nanoparticle arrays and a resonant laser. The size and frequency of bubble bouncing can be adjusted through laser pulse control, which is governed by the movement of the three-phase contact line during surface wetting. It also demonstrates the ability to pull back rising bubbles through laser-induced thermal Marangoni flow, verified by measurements and simulations. This study provides novel insights into flexible bubble manipulation and integration in microfluidics, with significant implications for various applications.
Article
Nanoscience & Nanotechnology
Wangyang Zhang, Weishan Yan, Haonian Zheng, Chaopeng Zhao, Duo Liu
Summary: This study demonstrates laser-engineered polydimethylsiloxane (PDMS) as a versatile and highly efficient platform for water manipulation. The obtained superhydrophobic PDMS material exhibits excellent stability and can be widely applied in areas such as oil/water separation and water collection.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Multidisciplinary Sciences
Jason C. Bell, Christopher C. Dombrowski, Jody L. Plank, Ryan B. Jensen, Stephen C. Kowalczykowski
Summary: Mutations in the BRCA2 gene increase the risk of breast and ovarian cancers. This study shows that BRCA2 accelerates the formation of the RAD51 nucleoprotein filament, which plays a crucial role in DNA repair. BRCA2 also eliminates the kinetic barrier imposed by replication protein-A (RPA), allowing efficient and regulated recombination.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Inorganic & Nuclear
Katsuaki Kobayashi, Hideki Ohtsu, Koichi Nozaki, Susumu Kitagawa, Koji Tanaka
INORGANIC CHEMISTRY
(2016)
Article
Chemistry, Inorganic & Nuclear
Makoto Tadokoro, Hiroyuki Hosoda, Tomonori Inoue, Akira Murayama, Koichiro Noguchi, Atsushi Iioka, Ryota Nishimura, Masaki Itoh, Tomoaki Sugaya, Hajime Kamebuchi, Masa-aki Hagallg
INORGANIC CHEMISTRY
(2017)
Article
Chemistry, Inorganic & Nuclear
Debashis Ghosh, Katsuaki Kobayashi, Takashi Kajiwara, Susumu Kitagawa, Koji Tanaka
INORGANIC CHEMISTRY
(2017)
Article
Chemistry, Inorganic & Nuclear
Daisuke Motoyama, Kai Yoshikawa, Hiroaki Ozawa, Makoto Tadokoro, Masa-aki Haga
INORGANIC CHEMISTRY
(2017)
Article
Chemistry, Inorganic & Nuclear
Junpei Kuwabara, Tomomi Namekawa, Eiko Sakabe, Masa-aki Haga, Takaki Kanbara
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2017)
Article
Chemistry, Multidisciplinary
Hiroaki Ozawa, Norihiko Katori, Tomomi Kita, Shota Oka, Masa-aki Haga
Article
Materials Science, Multidisciplinary
T. T. Meng, L. X. Xue, H. Wang, K. Z. Wang, M. Haga
JOURNAL OF MATERIALS CHEMISTRY C
(2017)
Article
Multidisciplinary Sciences
Alexander V. Rudnev, Veerabhadrarao Kaliginedi, Andrea Droghetti, Hiroaki Ozawa, Akiyoshi Kuzume, Masa-Aki Haga, Peter Broekmann, Ivan Rungger
Article
Chemistry, Inorganic & Nuclear
Katsuaki Kobayashi, Take-aki Koizumi, Debashis Ghosh, Takashi Kajiwara, Susumu Kitagawa, Koji Tanaka
DALTON TRANSACTIONS
(2018)
Article
Chemistry, Multidisciplinary
Katsuaki Kobayashi, Sayaka Teratani, Yosuke Izumori, Kazumasa Hayasaka, Hiroshi Nakazawa
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2019)
Article
Chemistry, Multidisciplinary
Katsuaki Kobayashi, Yosuke Izumori, Daisuke Taguchi, Hiroshi Nakazawa
Article
Chemistry, Physical
Katsuaki Kobayashi, Daisuke Taguchi, Toshiyuki Moriuchi, Hiroshi Nakazawa
Article
Chemistry, Multidisciplinary
Daisuke Taguchi, Katsuaki Kobayashi, Toshiyuki Moriuchi, Hiroshi Nakazawa
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2020)
Article
Chemistry, Inorganic & Nuclear
Debashis Ghosh, Takashi Fukushima, Katsuaki Kobayashi, Susan Sen, Susumu Kitagawa, Tatsuhisa Kato, Koji Tanaka
DALTON TRANSACTIONS
(2017)
Article
Nanoscience & Nanotechnology
Sho Fujii, Ryuta Fukano, Yoshihito Hayami, Hiroaki Ozawa, Eiro Muneyuki, Noboru Kitamura, Masa-aki Hag
ACS APPLIED MATERIALS & INTERFACES
(2017)
