Article
Chemistry, Multidisciplinary
Diana Nelli, El Yakout El Koraychy, Manuella Cerbelaud, Benoit Crespin, Arnaud Videcoq, Alberto Giacomello, Riccardo Ferrando
Summary: The solidification of AgCo, AgNi, and AgCu nanodroplets in the size range of 2-8 nm was studied using molecular dynamics simulations. Despite the surface segregation of Ag in the bulk solid, the simulations revealed clear differences in the solidification pathways. AgCo and AgNi separate in the liquid phase and solidify close to equilibrium, while AgCu remains in a kinetically trapped state and solidifies in one step. An analytical model was used to rationalize these differences and analyze the size dependence of solidification temperatures.
Article
Chemistry, Multidisciplinary
Luis Ruiz Pestana, Teresa Head-Gordon
Summary: The evaporation mechanism of nanodroplets is different from that of macroscopic water droplets. Regardless of hydrophobicity, the evaporation rate of nanodroplets does not follow the traditional mode and their evaporation behavior is characterized by non-equilibrium wetting. The vapor concentration on the surface of nanodroplets does not reach a steady state. The evaporative lifetime of nanodroplets is directly related to the hydrophobicity of the substrate.
Article
Chemistry, Analytical
Jin Song, Ghulam Abbas, Ashaq Ali, Yaohong Ma, Yiwei Li
Summary: In vitro diagnostics (IVD) aims to ensure human welfare and life security. Electrochemical sensors have been widely used in various applications, including IVD, due to their high sensitivity, simplicity, and cost-effectiveness. However, achieving reproducibility and accuracy remains a challenge for electrochemical IVD sensors, particularly in disease biomarker detection and infection prognoses. Recent advancements in electrochemically ratiometric biosensors (BERS) have shown promising potential for IVD applications, and this review discusses their signal generation strategies, analysis applications, and challenges in real-world implementation.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Physics, Mathematical
Marius Junge, Aleksander M. Kubicki, Carlos Palazuelos, David Perez-Garcia
Summary: In this work, position based quantum cryptography is studied from the perspective of geometric functional analysis and its connections with quantum games. The optimal amount of entanglement for attackers to compromise the security of PBQC protocols is explored, and a position verification protocol is proposed with lower bounds on the resources needed to break it being found.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Andryj M. Borys, Ewan R. Clark, Paul J. Saines, Antonio Alberola, Jeremy M. Rawson
Summary: A series of substituted 1,2,4-benzothiadiazine 1-chlorides have been synthesized by treating N-arylamidines in neat thionyl chloride, with the S(iv) 1-chlorides easily reduced to persistent benzothiadiazinyl radicals characterized by EPR spectroscopy and cyclic voltammetry. Crystallographic studies on isolated radicals show dimerization via pancake bonding in the solid-state, resulting in spin-pairing and net diamagnetism.
Article
Materials Science, Biomaterials
Ganit Indech, Lidor Geri, Chen Mordechai, Yarden Ben Moshe, Yitzhak Mastai, Orit Shefi, Amos Sharoni
Summary: Micro- and nano-particles are essential for various current and emerging technologies, particularly in biological studies and applications. Recent developments have led to multifunctional particles that can enhance their effectiveness and enable novel applications. However, conventional fabrication methods for particles are time-consuming and challenging to fine-tune for multifunctional applications. In this study, a simple and facile method for fabricating dome-shaped micron- and nano-sized particles was presented, which allows for the engineering of multifunctional particles with pre-defined properties for specific biological applications.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Engineering, Aerospace
Javier Gutierrez Alvarez, Chiara Bisagni
Summary: The study presented in the article focuses on the phenomenon of mode jumping in composite plates in the post-buckling regime, which can potentially be used for local morphing or structural adaptability in aerospace structures. Through a combination of numerical and experimental techniques, the researchers conducted a parametric analysis to identify composite panels that exhibit mode jumping when heated, successfully obtaining experimental results and predicting trends through numerical simulations.
Article
Nanoscience & Nanotechnology
Shun-Xing Liang, Soma Salamon, Swen Zerebecki, Lai-Chang Zhang, Zhe Jia, Heiko Wende, Sven Reichenberger, Stephan Barcikowski
Summary: This study successfully prepared metallic glass nanoparticles (MG-NPs) by picosecond-laser ablation of Fe78Si9B13 metallic glass in organic solvents, avoiding elemental segregation and achieving amorphous phase. The carbon-rich molecules in solvents enhanced the relative fraction of MG-NPs and also led to the formation of Fe oxide phases.
SCRIPTA MATERIALIA
(2021)
Article
Physics, Fluids & Plasmas
Mohit Gupta, Pinaki Chaudhuri, Jeremie Bec, Samriddhi Sankar Ray
Summary: This study investigates the impact of a two-dimensional, incompressible, turbulent flow on soft granular particles, revealing the emergence of a crystalline phase resulting from the interplay between Stokesian drag and short-range interparticle interactions. The crystalline phase and noncrystalline phase exhibit a sharp transition dependent on the Stokes number, as quantified by the bond order parameter and local density fluctuations. Moreover, the nature of preferential concentration, as characterized by the correlation dimension, differs significantly from that observed in particle-laden flows without repulsive potentials.
Article
Chemistry, Multidisciplinary
Jakob D. Asmussen, Keshav Sishodia, Bjoern Bastian, Abdul R. Abid, Ltaief Ben Ltaief, Henrik B. Pedersen, Subhendu De, Cristian Medina, Nitish Pal, Robert Richter, Thomas Fennel, Sivarama Krishnan, Marcel Mudrich
Summary: Helium nanodroplets serve as ideal model systems for studying the interaction between condensed matter and ionizing radiation. We investigated the impact of purely elastic electron scattering on the angular and energy distributions of photoelectrons emitted from varying-sized He nanodroplets. Large droplets exhibit pronounced anisotropy in the direction of the incident light beam due to internal shadowing, while the detected photoelectron spectra remain minimally perturbed. This opens up possibilities for photoelectron spectroscopy of dopants embedded in droplets, as long as they are smaller than the penetration depth of light and the trapping range of emitted electrons in liquid helium.
Article
Optics
Nicola Pellizzi, Alfredo Mazzulla, Pasquale Pagliusi, Gabriella Cipparrone
Summary: The development of efficient and cost-effective micromachines is a challenge for applied and fundamental science. The rotational dynamics of core-shell particles with specific architecture when irradiated by light has been studied, providing important insights for optimizing the design of light controlled micro-objects.
PHOTONICS RESEARCH
(2022)
Article
Construction & Building Technology
Soudabeh Dezhampanah, Iman M. Nikbin, Sadegh Mehdipour, Reza Mohebbi, HamidHabibi Moghadam
Summary: The study evaluated the properties of concrete specimens made with magnetite aggregate Fe3O4 containing 0.6% of polypropylene fiber (PPF) and varying percentages of nano titanium dioxide (nano TiO2). Increasing the nano TiO2 content led to changes in compressive strength, UPV, impact resistance, and gamma-ray shielding properties, with improvements initially and subsequent decreases. This included increased linear attenuation coefficients and reduced ray transmissions, indicating enhanced radiation shielding capabilities with higher nano TiO2 content.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Physics, Multidisciplinary
Gao-Jie Ye, Yin Cheng, Si-Yu Li, Yu Qiang, Xian-Ping Wang, Wu Jian
Summary: Surface lattice resonances in a periodic array of metallic nanoparticles arise from the coupling between the localized surface plasmon resonances of different nanoparticles. When compared to individual particles, the array shows significantly reduced resonance line width. This study extends the coupled dipole approximation to analyze the electromagnetic characteristics of rotational symmetric particle ring structures and proposes an analytical model for a double ring array of metallic nanoparticles. The resonant condition of the double ring array is derived and specific cases are studied, revealing a high enhancement factor that depends on the structural parameters but decreases sharply with slight changes. The proposed structure provides a simple approach to generate a localized optical field with complex spatial distribution and has potential applications in metasurfaces, optoelectronics, optical manipulation, communication, and biosensing.
ACTA PHYSICA SINICA
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Imran, Xuexi Zhang
Summary: Elastocaloric cooling technology, which is more efficient and environmentally friendly than vapor compression systems, has potential applications in miniaturized cooling devices, but challenges need to be addressed to enhance performance.
MATERIALS & DESIGN
(2021)
Review
Chemistry, Physical
Kyungjune Cho, Takhee Lee, Seungjun Chung
Summary: This review presents recent achievements and challenges in inkjet-printed device applications based on two-dimensional van der Waals materials (2D vdW materials). The review provides a brief introduction to 2D vdW materials and inkjet printing principles, discusses various ink formulation methods, and highlights the applications of inkjet-printed 2D vdW devices and their technical issues.
NANOSCALE HORIZONS
(2022)
