Article
Chemistry, Physical
Farzeen Sakina, Carlos Fernandez-Ruiz, Jorge Bedia, Luisa Gomez-Sainero, Richard T. Baker
Summary: Ordered mesoporous carbon (OMC) was utilized as a support for palladium nanoparticles in catalysts for gas phase hydrodechlorination (HDC) of trichloromethane (TCM), showing excellent dispersion of fine Pd nanoparticles and high selectivity to higher hydrocarbons in two of the catalysts. However, the solid-liquid (SL) method resulted in larger particles and less uniform palladium distribution, leading to lower conversion, selectivity, and more severe catalyst deactivation at higher reaction temperatures.
Article
Astronomy & Astrophysics
Jinsu Kim, John McDonald
Summary: This paper provides generic analytical conditions for the perturbations of an inflaton condensate to undergo growth to nonlinearity, and applies these conditions to various inflation models. The results are in good agreement with explicit numerical simulations, and can guide subsequent in-depth numerical analyses.
Article
Neurosciences
Johanna M. Rimmele, Pius Kern, Christina Lubinus, Klaus Frieler, David Poeppel, M. Florencia Assaneo
Summary: Musical training enhances auditory-motor cortex coupling, which in turn facilitates music and speech perception. The study found that the strength of speech auditory-motor cortex coupling can be inferred from musical sophistication, particularly in the aspects of musical perception and training.
FRONTIERS IN NEUROSCIENCE
(2022)
Article
Multidisciplinary Sciences
Keiji Mochida, Ayumi Hasegawa, Daiki Shikata, Nobuhiko Itami, Masashi Hada, Naomi Watanabe, Toshiko Tomishima, Atsuo Ogura
Summary: The study introduces an easy and quick method for mouse sperm freezing, using 20% raffinose solution and storing at -80 degrees C, with the frozen-thawed sperm retaining high fertilization rates. This technique is crucial for preventing the loss of valuable strains due to emergency situations.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Inorganic & Nuclear
Mengyang Lu, Yi Chen, Zicheng Lu, Chao Xu, Zhao Qiu, Yongqian Wang
Summary: A confined self-assembly system based on AAO/ZnS for the detection of tetracycline is fabricated in this article. The optimized conditions for the assembly system are determined as an AAO aperture of 80-100 nm, a reaction time of 30 min, and a reaction voltage of 1.5 V. The system shows high sensitivity and effectiveness for detecting tetracycline, indicating its potential in improving the sensitivity of biomolecule detection.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Citlalli Rios, L. Bazan-Diaz, Christian A. Celaya, Roberto Salcedo, Pandiyan Thangarasu
Summary: A raspberry-like SiO2@TiO2 new material supported on functionalized graphene oxide was prepared to reduce the band gap value of titania. The material was characterized using various analytical methods and the band gap value was studied through UV-Vis absorption spectra and theoretical analysis of species interaction.
Article
Chemistry, Physical
Alice Castan, Salome Forel, Frederic Fossard, Joeri Defillet, Ahmed Ghedjatti, Dmitry Levshov, Wim Wenseleers, Sofie Cambre, Annick Loiseau
Summary: Resonant Raman spectroscopy is a widely used technique for characterizing single-walled carbon nanotubes, providing direct information on their structure. This study compared diameter distributions obtained through Raman peak counting with those from transmission electron microscopy, revealing differences due to chirality-dependence and the limited excitation wavelengths used. The effects of substrate and TEM-related biases were also discussed.
Article
Chemistry, Inorganic & Nuclear
Natsuko Asano, Shunsuke Asahina, Jinfeng Lu, Jiani Xu, Yanfeng Shen, Zhengxing Qin, Svetlana Mintova
Summary: In this work, low-voltage field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectroscopy (EDS) analyses were used to investigate zeolite structures. Low-voltage electron imaging was applied to visualize the surface structures of ZSM-5 zeolites and cross-sectional imaging techniques were used to reveal sub-surface etching of SAPO-34 zeolites. The study also demonstrated the presence of hidden macropores introduced by NH4F etching and recorded the near-surface-layer element distribution in zeolite crystals through combined low-voltage imaging and EDS analysis.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Wei Tang, Jie He, Yunya Xiao, Weiwei Qu, Jiying Ye, Hui Long, Chaolin Liang
Summary: This paper focuses on a temporary fastener with one-side installation-removal capability and conducts in-depth research on three levels of quick-pressing. The experiment results have demonstrated that this fastener can be quickly and efficiently installed and removed by continuous one-pressing, solving the problems caused by traditional bolt bilateral operation and part tolerances.
APPLIED SCIENCES-BASEL
(2023)
Review
Physics, Applied
M. Almasi Kashi, A. H. Montazer
Summary: In this review, the fabrication techniques and characterizations of metal nanowire arrays produced by template-based electrodeposition are discussed, with a focus on the crystalline and magnetic characteristics of the nanowires. The review also explores potential applications of these magnetic nanowires in various fields.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Nan Li, Siqingaowa Han, Shuang Lin, Xuan-yu Sha, Wuliji Hasi
Summary: By adjusting the pH value, silver nanoparticles of different sizes were successfully prepared and assembled into aluminum oxide holes using interface self-assembly technology to create a SERS substrate with high sensitivity and excellent signal repeatability. The SERS detection of levofloxacin in dairy products showed great reliability, making this method suitable for on-site measurement of antibiotics in food.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Food Science & Technology
Jia-Wen Wei, Jia-Rong He, Shi-Yi Chen, Yi-Han Guo, Xuan-Zhu Huo, Nuan Zheng, Shuo-Hui Cao, Yao-Qun Li
Summary: Polycyclic aromatic hydrocarbons (PAHs) are a major cause of human cancer. This study developed a quantitative analysis method for PAH4 using the back propagation neural network (BPNN) algorithm and constant wavelength synchronous fluorescence (CWSF) spectra as the data sets. The method can predict the concentrations of PAH4 in edible oil samples without preprocessing or pre-separation. It has been proven to be a powerful tool for the rapid detection of PAH4.
Article
Mathematical & Computational Biology
Mickael Zbili, Sylvain Rama
Summary: Calculations of entropy and mutual information in neuroscience are valuable analytical tools, but prone to sampling bias due to limited data. This article proposes the use of entropy-encoding compression algorithms for simple and unbiased estimation of entropy and mutual information levels. While not providing absolute values, this method is mathematically correct and can be applied in various experimental conditions.
FRONTIERS IN NEUROINFORMATICS
(2021)
Article
Materials Science, Multidisciplinary
F. Cappia, K. Wright, D. Frazer, K. Bawane, B. Kombaiah, W. Williams, S. Finkeldei, F. Teng, J. Giglio, M. N. Cinbiz, B. Hilton, J. Strumpell, R. Daum, K. Yueh, C. Jensen, D. Wachs
Summary: Experimental investigations were conducted on the fuel microstructure and volatile fission products of a high burnup specimen to study its structure and damage. The results showed the presence of different zones with distinct characteristics, including high retention of fission gas and polygonization in the intermediate region, and formation of metallic and grey phases in the center of the pellet.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Biotechnology & Applied Microbiology
Piyush Kumar, Santosh K. Misra
Summary: Researchers have developed a paper sticker called CoRAPS that can quickly detect microbial infections with low required skill set and less complex machinery.
BIOCHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Julien Proust, Frederic Bedu, Bruno Gallas, Igor Ozerov, Nicolas Bonod
Article
Chemistry, Multidisciplinary
Raju Regmi, Johann Berthelot, Pamina M. Winkler, Mathieu Mivelle, Julien Proust, Frederic Bedu, Igor Ozerov, Thomas Begou, Julien Lumeau, Herve Rigneault, Maria F. Garcia-Parajo, Sebastien Bidault, Jerome Wenger, Nicolas Bonod
Article
Chemistry, Multidisciplinary
Priya Gambhire, Scott Atwell, Cecile Iss, Frederic Bedu, Igor Ozerov, Catherine Badens, Emmanuele Helfer, Annie Viallat, Anne Charrier
Article
Biophysics
Artem Danilov, Gleb Tselikov, Fan Wu, Vasyl G. Kravets, Igor Ozerov, Frederic Bedu, Alexander N. Grigorenko, Andrei V. Kabashin
BIOSENSORS & BIOELECTRONICS
(2018)
Article
Multidisciplinary Sciences
Olivier Theodoly, Nicolas Garcia-Seyda, Frederic Bedu, Xuan Luo, Sylvain Gabriele, Tam Mignot, Joanna Giermanska, Jean-Paul Chapel, Melinda Metivier, Marie-Pierre Valignat
Article
Nanoscience & Nanotechnology
Remi Colom, Lei Xu, Loris Marini, Frederic Bedu, Igor Ozerov, Thomas Begou, Julien Lumeau, Andrey E. Miroshnishenko, Dragomir Neshev, Boris T. Kuhlmey, Stefano Palomba, Nicolas Bonod
Article
Multidisciplinary Sciences
Jerome Belougne, Igor Ozerov, Celine Caillard, Frederic Bedu, Jonathan J. Ewbank
SCIENTIFIC REPORTS
(2020)
Article
Nanoscience & Nanotechnology
Yeon Ui Lee, Igor Ozerov, Frederic Bedu, Ji Su Kim, Frederic Fages, Jeong Weon Wu
Article
Chemistry, Multidisciplinary
Benjamin Demirdjian, Igor Ozerov, Frederic Bedu, Alain Ranguis, Claude R. Henry
Summary: Using indirect nanoplasmonic sensing coupled with mass spectrometry, we studied CO and oxygen adsorption as well as CO oxidation on Pt nanoparticles in the Torr pressure range. By optimizing the physical parameters of our plasmonic sample, we obtained a highly sensitive probe capable of detecting gas adsorption at low Pt particle density. We also observed a similarity between LSPR peak shift and work function measurements for CO and oxygen chemisorption, and accurately determined the turnover frequency by controlling the size, shape, and surface density of Pt particles.
Article
Chemistry, Multidisciplinary
Aya Nassereddine, Ahmed Abdelrahman, Emmanuelle Benard, Frederic Bedu, Igor Ozerov, Laurent Limozin, Kheya Sengupta
Summary: The article introduces a technique combining electron beam lithography and surface functionalization to fabricate nanopatterns compatible with advanced imaging. It is found that T cells organize their membrane and actin network differently depending on the distribution of ligands.
Article
Nanoscience & Nanotechnology
Elena Mikheeva, Remi Colom, Patrice Genevet, Frederic Bedu, Igor Ozerov, Samira Khadir, Guillaume Baffou, Redha Abdeddaim, Stefan Enoch, Julien Lumeau
Summary: With laser-annealing technology, we propose a novel approach to design and fabricate phase-gradient Huygens metasurfaces by using uniform particles made of As2S3 chalcogenide glass. Instead of tuning the geometry, we realize a phase gradient metasurface by tuning the refractive index of identical meta-atoms. By locally changing the refractive index of As2S3 particles using short-wavelength illumination, we can adjust the phase pattern of the metasurface after fabrication. The potential advantages of our method for low-cost mass production of large-scale metasurfaces lie in the use of uniform geometries.
Article
Nanoscience & Nanotechnology
Kyu Ri Choi, Shilong Li, Igor Ozerov, Frederic Bedu, Dong Hee Park, Bin Chan Joo, Jeong Weon Wu, Sile Nic Chormaic, Yeon Ui Lee
Summary: This study presents a systematic investigation of fluorescence engineering in metamaterial-assisted localization microscopy using cyclic group metasurfaces coated with a fluorescent film. The spatially varied Purcell effect near these metasurfaces leads to tailored variations in the photoluminescence intensity and photobleaching lifetime of fluorophores. The enhanced emissions and blinking dynamics of the fluorophores on these metasurfaces result in a super-resolution localization image with a localization accuracy of 0.9 nm.
Article
Chemistry, Multidisciplinary
Ilan Boulet, Simon Pascal, Frederic Bedu, Igor Ozerov, Alain Ranguis, Thomas Leoni, Conrad Becker, Laurence Masson, Aleksandar Matkovic, Christian Teichert, Olivier Siri, Claudio Attaccalite, Jean-Roch Huntzinger, Matthieu Paillet, Ahmed Zahab, Romain Parret
Summary: Hybrid van der Waals heterostructures consisting of 2D materials and organic molecules show potential for efficient devices. This study focuses on a quinoidal zwitterion/MoS2 hybrid system where organic crystals grow on the MoS2 surface and rearrange after thermal annealing. The charge transfer between the zwitterions and MoS2 depends on the molecular film conformation, but the transistor performance remains unaffected. Additionally, MoS2 transistors can accurately detect structural modifications during organic layer phase transitions, making them valuable tools for on-chip detection of molecular events.
NANOSCALE ADVANCES
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
A. A. Popkova, I. M. Antropov, G. Tselikov, F. Bedu, I Ozerov, A. Arsenin, V. S. Volkov, V. O. Bessonov, A. A. Fedyanin
Summary: Enhanced second-harmonic generation in a single MoS2 nanodisk is observed due to the overlap between Mie resonances at the fundamental wavelength and the C-exciton resonance at the second-harmonic wavelength.
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2021)
Proceedings Paper
Nanoscience & Nanotechnology
Artem Danilov, Gleb Tselikov, Fan Wu, Vasyl G. Kravets, Igor Ozerov, Frederic Bedu, Alexander N. Grigorenko, Andrei V. Kabashin
SYNTHESIS AND PHOTONICS OF NANOSCALE MATERIALS XV
(2018)
