Article
Computer Science, Artificial Intelligence
Szymon Szczesny, Pawel Pietrzak
Summary: This study introduces a system for monitoring vesicle fusions during the exocytosis process, aiming to detect precancerous conditions in cells. Utilizing multiple small perceptron neural networks in parallel on the Jetson TX2 platform, it can process approximately 140,000 sensors in real time with 99% accuracy.
NEURAL COMPUTING & APPLICATIONS
(2022)
Article
Optics
Guanhao Liu, Zhiyi Li, Xiaoxiao Hu, Yuanyuan Qin, Chun-Sing Lee, Dongqi Chen, Lingxue Wang, Jianjun Liu, Pengfei Wang, Yong-Jin Pu, Ying Wang
Summary: This study demonstrates highly efficient and stable OLEDs with thicknesses of over 1 mu m and low operating voltages. MoO3/SimCP2 is used as a hole-injection layer and a thick layer of TAPC is used as a hole-transporting layer. A thin layer of HAT-CN is incorporated to suppress electron leakage. The research paves the way for large-area OLED-based displays and lighting with high production yields.
Editorial Material
Optics
Nathaniel Kinsey
Summary: The article explores the impact of momentum on linear optical processes in near-zero-index materials.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Optics
Hou Shaodong, Ma Zhijian, Yang Junbo, Zhang Min, Yan Peiguang, Ruan Shuangchen
Summary: A fiber component serving as a WDM, OC, and mode-locker was proposed and demonstrated in a laboratory setting, achieving specific parameters for an Er-doped mode-locked fiber laser. This is the first demonstration of a mode-locked fiber laser based on a WDM/OC/SA integrated device.
Article
Materials Science, Ceramics
Takahiro Gunji, Kotoe Nakamura, Ryohei Hayami, Akihisa Aimi, Kenjiro Fujimoto, Kazuki Yamamoto
Summary: A novel recycling system for indium in indium tin oxide (ITO) was established, which successfully synthesized ITO films containing 10 wt% tin oxide with high transparency and resistivity. The system involved the dissolution of indium oxide, chlorination, chelation, and steaming treatment, leading to the synthesis of In(etac)(3) and subsequent film formation.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Hao Li, Ziheng Zhou, Wangyu Sun, Michael Lobet, Nader Engheta, Inigo Liberal, Yue Li
Summary: This paper reports experimental observation of electromagnetic power flow in a near-zero-index medium. The observed distribution of power flow exhibits characteristics similar to an ideal fluid. The results provide important insights into the development of ideal electromagnetic fluids and offer a tool to explore the subwavelength behavior of near-zero-index media.
NATURE COMMUNICATIONS
(2022)
Article
Optics
Juan Navarro-Arenas, Jorge Parra, Pablo Sanchis
Summary: This article investigates the behavior of ultrafast all-optical phase switching in TCO-silicon waveguides through numerical simulation. The study reveals the best compromise between energy consumption, insertion losses, and phase change per unit length.
Article
Biochemical Research Methods
Weiyang Yang, Yan Gong, Cheng-You Yao, Maheshwar Shrestha, Yaoyao Jia, Zhen Qiu, Qi Hua Fan, Arthur Weber, Wen Li
Summary: Integrative neural interfaces combining neurophysiology, optogenetics, and neural imaging offer opportunities for studying neural circuits in the brain. The development of ultra-flexible, highly conductive and fully transparent microscale electrocorticogram (mu ECoG) electrode arrays with PEDOT:PSS-ITO-Ag-ITO assembly shows enhanced mechanical flexibility, robustness, and resilience to photon-induced artifacts. In vivo experiments demonstrate successful recording of light-evoked ECoG oscillations from the primary visual cortex (V1) of an anesthetized rat.
Review
Chemistry, Physical
Gabriel Bernardo, Tania Lopes, David G. Lidzey, Adelio Mendes
Summary: Organic photovoltaic (OPV) cells have significantly increased their power conversion efficiency under AM1.5G conditions, and there is a growing interest in their applications for dim light indoor settings. However, transferring OPV from lab to market still faces challenges, such as scaling up single cells, finding alternatives to vacuum processing and ITO substrates, and improving the lifetime of large area OPV devices.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Salih Ozbay, Nursev Erdogan, Fuat Erden, Merve Ekmekcioglu, Busra Rakop, Mehtap Ozdemir, Gulnur Aygun, Lutfi Ozyuzer
Summary: ITO, ZTO, AZO, and Ag are commonly used in multilayer thin films of transparent conducting oxide (TCO)/metal/TCO electrodes, with critical knowledge of surface free energy (SFE) being important for designing desirable TCO-based sandwich structures. Contact angle measurements of different liquids were used to evaluate the wettability properties of TCO, Ag interlayer, and TCO/Ag/TCO. The results showed that the SFE components varied depending on the TCO type, the total SFE values of TCO/Ag/TCO films were lower than TCO films, and AZO/Ag adhesion was stronger than other TCO/Ag structures.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Chemical
Yangyang Fan, Yan Liu, Liping Niu, Weiguang Zhang, Ting-an Zhang
Summary: This study proposed a closed-loop hydrometallurgical process for indium recovery from waste ITO targets, achieving high indium recovery and recirculation of leaching reagent. By implementing experiments and models, successful indium recovery, selective precipitation of tin, and preparation of indium oxide product were achieved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
Zuoren Xiong, Xinyan Ma, Yanbo Pei, Yingbin Zhang, Hua Zhao
Summary: This paper discusses the giant nonlinear effect observed in the indium-tin-oxide coated Z-cut Fe-doped lithium niobate plates under milliwatt continuous-wave laser light, which is supported by the promising non-metal plasmonic system. The research hints at a highly sensitive plasmonic system that could have widespread applications in visible plasmonics.
SCIENTIFIC REPORTS
(2021)
Article
Toxicology
Nan Liu, Yi Guan, Yan Yu, Gai Li, Ling Xue, Weikang Li, Xiaoyu Qu, Ning Li, Sanqiao Yao
Summary: This study investigates the links between occupational indium exposure and lung injury and explores the mechanism of action. The findings indicate elevated levels of serum and urine indium in exposed workers, as well as lung damage, oxidative stress, and inflammation. Animal experiments also confirm the harmful effects of indium on the lungs. A potential biomarker of exposure and effect in exposed workers, serum SP-A levels, is identified.
PARTICLE AND FIBRE TOXICOLOGY
(2022)
Article
Optics
Ze Tao Xie, Yanhua Sha, Jiaye Wu, H. Y. Fu, Qian Li
Summary: This study numerically investigates the ultrafast dynamic switching of optical response using a tunable hyperbolic metamaterial (HMM) on a femtosecond time-scale. The results show that the HMM platform allows large and broad all-optical modulation of the effective permittivity and topology, with considerable tunability in extinction ratio and Purcell enhancement under different pump fluence. Additionally, all-optical control of coupling strength is achieved by depositing plasmonic resonators on the HMM platform.
Article
Materials Science, Multidisciplinary
Zhihao Chen, Yu Chen, Yaodong Wu, Xinxing Zhou, Handong Sun, Tony Low, Hongsheng Chen, Xiao Lin
Summary: The photonic spin Hall effect, which is a manifestation of the spin-orbit interaction of light, can be measured through the transverse shift of photons with opposite spins. However, current methods to generate a large spin Hall effect have limitations, occurring only within a narrow angle range. This study proposes a universal scheme to achieve a wide-angle giant photonic spin Hall effect by utilizing the interface between free space and uniaxial epsilon-near-zero media.
Article
Chemistry, Multidisciplinary
Anna Larsson, Soodabeh Majdi, Alexander Oleinick, Irina Svir, Johan Dunevall, Christian Amatore, Andrew G. Ewing
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Multidisciplinary
Lin Ren, Alexander Oleinick, Irina Svir, Christian Amatore, Andrew G. Ewing
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Multidisciplinary
Manon Guille-Collignon, Jerome Delacotte, Frederic Lemaitre, Eric Labbe, Olivier Buriez
Summary: Recent works focusing on the modulation of organic fluorescent or fluorogenic molecules by electrochemistry highlight the smart use of known molecules, the design of new ones, and the development of instrumentation providing molecular-level time- and space-resolved information.
Article
Biochemical Research Methods
Yann Bouret, Manon Guille-Collignon, Frederic Lemaitre
Summary: Amperometry with ultramicroelectrodes is a routine technique for investigating neurotransmitter secretion by vesicular exocytosis at the single-cell level. The electrochemical detection may lead to acidification of the cell-electrode cleft, but a more general model taking into account buffer species movement and regeneration confirms the robustness of this technique. This model ensures that the pH within the cleft remains at its physiological value during usual exocytotic cell frequencies, regardless of the electrochemical detection of vesicular release.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Optics
T. P. L. Ung, X. Quelin, J. Laverdant, R. Fulcrand, J-P Hermier, S. Buil
Summary: This paper focuses on the optical properties of disordered hole arrays etched in a gold thin film, showing that increasing the disorder leads to broadened absorption in the far field, indicating energy localization induced by the disorder and its dependence on the amount of disorder and excitation wavelength.
Article
Electrochemistry
Adnan Sayegh, Luca A. Perego, Marc Arderiu Romero, Louis Escudero, Jerome Delacotte, Manon Guille-Collignon, Laurence Grimaud, Benjamin Bailleul, Frederic Lemaitre
Summary: This study focuses on extracting energy from oxygenic photosynthesis by rerouting electron flow using intact photosynthetic organisms to generate photocurrent. Researchers found that some quinones can interact with the embedded photosynthetic chain, but the balance between toxicity and bioelectricity production needs to be considered.
Article
Chemistry, Analytical
Fatma Ben Trad, Vincent Wieczny, Jerome Delacotte, Mathieu Morel, Manon Guille-Collignon, Stephane Arbault, Frederic Lemaitre, Neso Sojic, Eric Labbe, Olivier Buriez
Summary: The characterization of release events from liposomes has been quantitatively addressed using an electro-chemiluminescence (ECL) imaging strategy. By combining amperometry, epifluorescence imaging, and ECL imaging, the opening of liposomes and the subsequent release of their content can be monitored and imaged. This approach offers advantages over traditional techniques and is suitable for studying membrane rupture/permeation events.
ANALYTICAL CHEMISTRY
(2022)
Article
Electrochemistry
Justine Pandard, Na Pan, Eric Ait-Yahiatene, Laurence Grimaud, Frederic Lemaitre, Manon Guille-Collignon
Summary: In this study, four new fluorescent false neurotransmitters (FFN) probes were synthesized and their spectroscopic and electrochemical properties were investigated. The results showed that one of the probes (FFN122) had the optimal suitability for fluorescence microscopy. However, it was found that this probe did not accumulate into secretory vesicles of model cells. Therefore, FFN42 is currently the best bioelectrofluorescent compromise. Additionally, the effects of a transparent and conducting indium tin oxide (ITO) microdevice on electrochemical performances and reusability were examined.
Article
Chemistry, Physical
Alexandra Mailleur, Christophe Pirat, Gilles Simon, Remy Fulcrand, Jean Colombani
Summary: This study investigates the evaporation of pure water and salty water drops on different geometries of substrates, and finds that the formation of structured deposits is determined by the geometry of the experiments rather than specific thermal or chemical conditions. The role of nucleation sites on the salt substrate is a necessary condition for the appearance of hollow or inclined rims. Additionally, the experiments demonstrate the similarity between the final dryout microstructure and salt crystallography.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Biochemistry & Molecular Biology
Samuel Guilbault, Patrick Garrigue, Leo Garnier, Justine Pandard, Frederic Lemaitre, Manon Guille-Collignon, Neso Sojic, Stephane Arbault
Summary: This study developed optoelectrodes that combine the advantages of optical fibers and microelectrodes, enabling remote imaging, optogenetic stimulation, and simultaneous detection of neurosecretory activities. The optoelectrodes demonstrated analytical performance equivalent to carbon microelectrodes and allowed for remote imaging of single cells and in situ electrochemical sensing.
BIOELECTROCHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Armelle Rancillac, Emeric Scharbarg, Augustin Walter, Laure Lecoin, Thierry Gallopin, Frederic Lemaitre, Manon Guille-Collignon, Nathalie Rouach
Summary: Prostaglandin D2 (PGD2) is a potent sleep-promoting molecule that activates sleep-promoting neurons in the ventrolateral preoptic nucleus (VLPO) through astrocyte-derived adenosine, controlling local blood flow and sleep.
ACS CHEMICAL NEUROSCIENCE
(2023)
Article
Multidisciplinary Sciences
Aymeric Allemand, Menghua Zhao, Olivier Vincent, Remy Fulcrand, Laurent Joly, Christophe Ybert, Anne-Laure Biance
Summary: Liquid and ionic transport through nanometric structures can be achieved by forming a molecularly thin liquid film onto fully wettable substrates. Results show that near the silica surface, hindered transport exists in a one-molecule thick layer, while above this layer, conventional bulk-like approaches can explain the experimental results.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Physics, Applied
C. Symonds, V. Toanen, A. Gassenq, J. -m. Benoit, A. Pereira, E. Cleyet-Merle, R. Fulcrand, F. Bessueille, S. Minot, M. Morassi, A. Lemaitre, J. Bellessa
Summary: This Letter presents a fabrication process for current injection into micrometer-size Ag/GaAs Tamm emitting diodes with special care to avoid surface damages. Electroluminescence from GaAs quantum wells is demonstrated at room temperature, showing dispersion following the Tamm mode. Additionally, for small diameters Tamm structures, electroluminescence occurs in discretized energy modes due to in-plane confinement. This observation of electrically excited emission from a confined diode is a significant advancement towards Tamm plasmon optical devices with novel functionalities.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Stella M. M. Ramos, Damien Soubeyrand, Remy Fulcrand, Catherine Barentin
Summary: The study investigates the drying of multicomponent sessile drops and its influencing factors, specifically the substrate temperature and suspension concentration. It is found that the deposit patterns are influenced by these factors, with low concentrations and temperatures resulting in highly concentrated pigments at the center of the drop. Increasing the temperature or concentration leads to more homogeneous patterns. Three mechanisms are identified to be responsible for the final pattern: inward/outward flows, gelation of the paint suspension, and final drying of the drop. Rheological measurements support these observations, indicating an increase in viscosity with concentration consistent with the gelation mechanism. Additionally, the study shows that the drying kinetics of the drop is controlled by the substrate temperature.
Article
Biochemical Research Methods
Niloy De, Naval Singh, Remy Fulcrand, Yves Meheust, Patrice Meunier, Francois Nadal
Summary: This study investigates the convective dissolution as a trapping mechanism for carbon dioxide in geological formations using two-dimensional porous micromodels. Experimental results show that gravitational fingering instabilities lead to the downward migration of dissolved CO2 in different porous media geometries.
Article
Biochemistry & Molecular Biology
Hsiao-Chieh Tsai, Ching-Hong Huang, Ling-Hsien Tu
Summary: Islet amyloid polypeptide (IAPP) is a polypeptide hormone co-secreted with insulin by pancreatic beta-cells. It tends to aggregate into soluble oligomers, which are considered one of the hallmarks of type II diabetes. This study successfully grafted the aggregation-induced emission molecule TPE onto IAPP, allowing real-time monitoring of IAPP oligomer formation and potential application in the diagnosis of T2D.
BIOPHYSICAL CHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Aristeidis Papagiannopoulos, Aggeliki Sklapani, Nikolaos Spiliopoulos
Summary: This study presents a method for preparing Hb-based nanoparticles (NPs) using a fully biocompatible approach. These NPs have a spherical structure with a diameter ranging from 50 to 100 nm, and can form electrostatic complexes with CS at pH 4. The NPs can be pH-tunable and stable in solutions with high salt content, making them suitable for nanodelivery of nutrients and drugs.
BIOPHYSICAL CHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Andrey V. Struts, Alexander V. Barmasov, Steven D. E. Fried, Kushani S. K. Hewage, Suchithranga M. D. C. Perera, Michael F. Brown
Summary: This article summarizes and reviews the osmotic stress studies of G-protein-coupled receptor rhodopsin. It is found that water plays an important role in the activation of the receptor, with at least 80 water molecules entering the receptor in the transition to the active state. If water influx is prevented, the functional transition of the receptor is reversed. These findings reveal the phenomenon of solvent swelling in the activation mechanism of rhodopsin, with water acting as an allosteric modulator of function for rhodopsin-like receptors in lipid membranes.
BIOPHYSICAL CHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Maria Chiara Saija, Adela Melcrova, Wojciech Pajerski, Itay Schachter, Matti Javanainen, Marek Cebecauer, Lukasz Cwiklik
Summary: We used molecular dynamics simulations to investigate the effects of palmitoylation on a transmembrane peptide in different lipid environments. The study found that palmitoylation reduces the peptide's impact on membrane thickness, particularly in lipid-ordered and boundary environments. The hydrophobic palmitoyl chains on the peptide did not significantly affect membrane hydration. Interestingly, the boundary membrane environment was found to be highly compatible with the palmitoylated peptide. These findings have important implications for understanding cell signaling, membrane organization, and optimizing lipid membrane-based drug delivery systems.
BIOPHYSICAL CHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Achanta Rishisree, Brayer Mallory, Karnaukhova Elena, Jankovic Teodora, Zdunic Gordana, Savikin Katarina, Jeremic Aleksandar
Summary: Pomegranate peel, ironwort, and chokeberry leaf extracts exhibit anti-aggregative and antitoxic properties against human amylin. They can prevent amyloidosis and cell loss in patients with Type 2 Diabetes Mellitus.
BIOPHYSICAL CHEMISTRY
(2024)