Article
Chemistry, Physical
Yadong Zhou, Gang Chen, Shengli Zou
Summary: This study discovered that the enhancement or quenching of the radiative decay rate (RDR) for two or more emitters near a metal nanoparticle surface is drastically different from that of a single emitter. When six emitters are evenly arranged near the metal surface, the enhancement factors exhibit an asymmetric line shape at different wavelengths near the resonance wavelength of the metal nanoparticle, which converges as the number of emitters increases.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Fahad A. Alharthi, Hend Khalid Aldubeikl, Hamdah S. Alanazi, Wedyan Saud Al-Nafaei, Imran Hasan
Summary: In this study, a Ni-doped ZnWO4 mixed metal tungstate nanocomposite material was synthesized by the hydrothermal method and used as a sensor for the fluorometric determination of p-nitroaniline (p-NA). The results showed that ZnNiWO4 exhibited higher sensitivity towards p-NA, with a concentration range of 25-1000 μM and a detection limit of 1.93 x 10(-8) M. The detection limits for ZnWO4 and NiWO4 were 2.17 x 10(-8) M and 2.98 x 10(-8) M, respectively.
Article
Materials Science, Multidisciplinary
Emil A. Yuzbashyan, Michael K. -H. Kiessling, Boris L. Altshuler
Summary: In this study, we investigated fermions at quantum criticality with extremely retarded interactions. We calculated the specific heat, the jump in the specific heat, and the Landau free energy of the system, and proved that the global minimum of the free energy is non-degenerate at low temperatures. Furthermore, we determined the order parameter, the free energy, and the specific heat. Additionally, we uncovered an instability phenomenon in the gamma model.
Review
Materials Science, Multidisciplinary
Xiaolin Wang, Peipei Tao, Qianqian Wang, Rongbo Zhao, Tianqi Liu, Yang Hu, Ziyu Hu, Yimeng Wang, Jianlong Wang, Yaping Tang, Hong Xu, Xiangming He
Summary: With the development of microelectronics, EUV lithography has emerged as the most promising nanoscale fabrication technology. However, the limited brightness of the EUV light source and high-resolution requirements pose challenges for the development of photoresists.
Article
Biophysics
Guangze Yang, Yun Liu, Chun-Xia Zhao
Summary: Labeling nanoparticles with fluorescent dyes is a common method to study their cell uptake and biodistribution for drug delivery applications. However, the assumption that fluorescence intensity correlates with the amount of nanoparticles taken up by cells may not always hold true due to factors like dye dispersion, quenching, and material shading. This study shows that both hydrophobic and hydrophilic dye-labeled nanoparticles can suffer from dye quenching, making quantitative comparison of cell uptake challenging. The proposed solution aims to enable direct comparative studies of dye-labeled nanoparticles for better design and evaluation in drug delivery.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Biophysics
Blandine Billet, Benoit Chovelon, Emmanuelle Fiore, Patrice Faure, Corinne Ravelet, Eric Peyrin
Summary: An aptamer-based sensing approach utilizing Ni2+ or Co2+ as quencher metal ions was developed to detect small-molecule targets. The approach showed a rapid and efficient detection of target substances in spiked biological matrices, with varying signal gains depending on the target-probe pair investigated. This transition metal ion-based quenching strategy is characterized by its simplicity, low cost, and rapid signaling.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Hsuan-Wei Liu, Michael A. Becker, Korenobu Matsuzaki, Randhir Kumar, Stephan Goetzinger, Vahid Sandoghdar
Summary: This article introduces an alternative device based on bulging and rolling thin substrates to stabilize the position of nanoscopic tips. By placing gold nanoparticles and semiconductor quantum dots on two substrates and positioning them with nanometer precision, the fluorescence intensity and emission rate can be enhanced. The device exhibits passive mechanical stability for over an hour.
Article
Chemistry, Applied
Yi-Ting Liu, Xue-Feng Luo, Yin-Yu Lee, I-Chia Chen
Summary: Fluorescein silica core/shell nanoparticles, gold@silica@fluorescein were synthesized for the study of metal-enhanced fluorescence. The fluorescence enhancement factor was slightly greater in neutral ethanol solution compared to basic solution, with red-shifted fluorescence spectra observed in GNP@silica@FiTC compared to silica@FiTC and FiTC in solution.
Article
Materials Science, Multidisciplinary
A. Volokitin
Summary: The study investigates heat transfer between two gold plates in extreme near-field conditions, taking into account the presence of the electrical double layer on metal surfaces. The results show that at very small distances, the contribution of the double layer to heat flux exceeds conventional theory predictions by several orders of magnitude, independent of bias voltage and attributed to intrinsic properties of the electrical double layer. These findings suggest that intentional modification of surface dipole parameters can be utilized for nanoscale heat management.
Review
Engineering, Environmental
Gopal Panthi, Mira Park
Summary: Mercuric ions released from various sources are considered a global water pollutant with adverse effects on human health and the environment. Current methods for detecting these ions have limitations in terms of time, cost, and applicability. Metal nanoclusters possess unique properties and have potential for use in developing sensitive sensors for water quality monitoring.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Weifeng Lin, Yingchun Yang, Yang Lei, Feifei An, Leming Sun, Yong Qin, Lianbing Zhang
Summary: The self-assembly of nonfluorescent peptides can generate fluorescent peptide nanoparticles for drug delivery and therapeutic agent tracking. A study demonstrated the self-assembly of the antitumor dipeptide carnosine into fluorescent carnosine nanoparticles in the presence of zinc ions, showing biocompatibility and fluorescence tracing ability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Huayong Yang, Danyang Qi, Lulu Guo, Ning Fan, Caiyun Shao, Wu Zhang, Lirong Yang
Summary: The novel Yb-MOF, {[Yb(Hdpc)(bibp)(H2O)]center dot (H2O)}(n), with Yb as the central ion, exhibits characteristic fluorescence emission and shows good acid-base resistance and thermodynamic stability. It demonstrates high-performance detection capabilities in analyzing Nitrobenzene, Fe3+, and Cr2O72-.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Analytical
Luna R. Gomez Palacios, Alicia Veglia, A. Guillermo Bracamonte
Summary: This study evaluated the detection and tracking of Ultraluminescent gold core-shell nanoplatforms using Metal-Enhanced Fluorescence (MEF) technology. By controlling the silica spacer lengths and laser dye sensitizer placement, the MEF effect was demonstrated and optimized for enhanced detection within flow cytometry techniques. Core-shell nano-architectures showed improved emission and detection effects compared to core-less nanoparticles, indicating the potential for real-time non-classical light generation.
MICROCHEMICAL JOURNAL
(2021)
Article
Environmental Sciences
Crescentia Yazhini, Mithun Karayi, Paromita Chakraborty, Bernaurdshaw Neppolian
Summary: Fluoroquinolones (FQs) are widely used antibiotics for treating bacterial infections. In India, these drugs often end up in agricultural land and water bodies through untreated wastewater, leading to antimicrobial resistance. In this study, a cost-effective sensor was developed using chemically reduced graphene oxide (rGO) integrated with luminescent cerium metal-organic framework (MOF) to specifically detect and monitor ciprofloxacin (CPFX), norfloxacin (NFX), and ofloxacin (OFX) in water. The sensor exhibited excellent sensing activity with limits of detection of 57.9, 46.3, and 51.6 ppb for CPFX, NFX, and OFX, respectively. Real-time samples from Chennai rivers showed appreciable recovery of results, demonstrating the potential of the sensor for monitoring FQs in water bodies.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Elham Ashrafzadeh Afshar, Mohammad Ali Taher, Hassan Karimi-Maleh, Ceren Karaman, Sang-Woo Joo, Yasser Vasseghian
Summary: In this study, a new magnetic nanocomposite was developed as a fluorescence quenching sensor for determining the anticancer drug 6-mercaptopurine. The nanocomposite was synthesized by magnetizing a needle shape fluorescence metal-organic framework on the surface of multiwalled carbon nanotubes. The proposed method successfully detected trace amounts of 6-mercaptopurine with high accuracy.
ENVIRONMENTAL POLLUTION
(2022)
Article
Optics
Dorian Bouchet, Remi Carminati
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2019)
Article
Optics
Florian Bigourdan, Romain Pierrat, Remi Carminati
Article
Engineering, Electrical & Electronic
Clotilde Prophete, Herve Sik, Emmanuel Kling, Remi Carminati, Julien de Rosny
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
(2019)
Article
Optics
Ugo Tricoli, Remi Carminati
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2019)
Article
Physics, Multidisciplinary
M. Durand, S. M. Popoff, R. Carminati, A. Goetschy
PHYSICAL REVIEW LETTERS
(2019)
Article
Physics, Multidisciplinary
Dorian Bouchet, Remi Carminati, Allard P. Mosk
PHYSICAL REVIEW LETTERS
(2020)
Article
Multidisciplinary Sciences
Chrystelle Salameh, Flore Salviat, Elora Bessot, Milena Lama, Jean-Marie Chassot, Elodie Moulongui, Yan Wang, Marc Robin, Arnaud Bardouil, Mohamed Selmane, Franck Artzner, Alba Marcellan, Clement Sanchez, Marie-Madeleine Giraud-Guille, Marco Faustini, Remi Carminati, Nadine Nassif
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Optics
Jean-Philippe Banon, Ingve Simonsen, Remi Carminati
Article
Nanoscience & Nanotechnology
Adrien Lalisse, Abeer Al Mohtar, Minh Chau Nguyen, Remi Carminati, Jerome Plain, Gilles Tessier
Summary: Temperature characterization and quantification at the nanoscale is a core challenge in applications relying on photoinduced heating of nanoparticles. A new approach combining modulated photothermal stimulation and heterodyne digital holography allows for quantitative temperature measurements on individual nanoparticles with a precision of 0.3 K without the need for calibration or fitting parameters. Additionally, the dependence of temperature on the aspect ratio of gold nanoparticles is investigated, showing good agreement with numerical simulation.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Physics, Applied
Joris Doumouro, Elodie Perros, Alix Dodu, Nancy Rahbany, Dominique Leprat, Valentina Krachmalnicoff, Remi Carminati, Wilfrid Poirier, Yannick De Wilde
Summary: Accurate measurements of thermal resistance between micro-objects made of insulating materials were conducted using a modified scanning thermal microscope in vacuum and air. The experimental results provided quantitative information on contact resistance and effective radius, offering a versatile method for describing coupling between micro-objects in various environments.
PHYSICAL REVIEW APPLIED
(2021)
Proceedings Paper
Microscopy
Ugo Tricoli, Remi Carminati
BIOMEDICAL SPECTROSCOPY, MICROSCOPY, AND IMAGING
(2020)
Meeting Abstract
Ophthalmology
Karsten Plamann, Romain Bocheux, Ugo Tricoli, Donald A. Peyrot, Michele Savoldelli, Kristina Irsch, Remi Carminati
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
(2020)
Article
Optics
J. -P. Banon, I. Simonsen, R. Carminati
Article
Optics
A. Sheremet, R. Pierrat, R. Carminati
Article
Optics
Antoine Canaguier-Durand, Romain Pierrat, Remi Carminati
