Article
Nanoscience & Nanotechnology
Ruzan Sokhoyan, Prachi Thureja, Jared Sisler, Meir Grajower, Komron Shayegan, Eyal Feigenbaum, Selim Elhadj, Harry A. A. Atwater
Summary: Active metasurfaces at optical frequencies enable dynamic wavefront control of light, and investigating their thermal performance limits is crucial for high-power applications. We experimentally demonstrate that gate-tunable conducting oxide metasurfaces can withstand high power densities without significant changes in their optical response, making them robust for applications such as optical communications and LiDAR.
Article
Chemistry, Multidisciplinary
Diego Nunez-Villanueva, Christopher A. Hunter
Summary: The template-directed synthesis of nucleic acids in the polymerase chain reaction was achieved by attaching a high affinity primer to a mixed sequence template. The study demonstrated a substantial template effect through H-bonding interactions between the phenols on the template and phosphine oxides on the azide. The use of a compound with multiple H-bonding capability resulted in the highest rate acceleration.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Fangjia Zhu, Maria Sanz-Paz, Antonio Fernandez-Dominguez, Xiaolu Zhuo, Luis M. Liz-Marzan, Fernando D. Stefani, Mauricio Pilo-Pais, Guillermo P. Acuna
Summary: Optical antennas are nanostructures designed to manipulate light-matter interactions by interfacing propagating light with localized optical fields. Successful phased array nanoantenna designs have required the organization of several elements over a footprint comparable to the operating wavelength. This study reports unidirectional emission of a single fluorophore using an ultracompact optical antenna, achieving high forward to backward ratio.
Article
Materials Science, Multidisciplinary
Jyothibabu Sajila Arya, Edamana Prasad
Summary: A thermally stable, crystalline, electrically conducting, and brightly fluorescent anthracene nanorod is reported. The nanorod exhibits tunable bandgap, high thermal stability, significant electrical conductivity, and excitation-dependent emission due to its unique covalent linkages. This material stands out among known 1D nanomaterials.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Physics, Multidisciplinary
Anand Kumar, Om Prakash Keshri, Vinod K. Gupta
Summary: This article investigates the g-jitter effect on the rate of mass transport in electrically-conducting Newtonian fluid, by solving a system of differential equations and presenting the influence of different dimensionless quantities graphically. It is found that the Sherwood number can be tuned by adjusting the amplitude and frequency of gravity modulation.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Polymer Science
Svitlana Railian, Yasemin Fadil, Vipul Agarwal, Tanja Junkers, Per B. Zetterlund
Summary: The modification of graphene oxide (GO) sheets and their application in emulsion polymerization were explored in this study, showing that stable latexes and nanocomposite films can be successfully obtained using GO and GO-COOH, while encountering colloidal instability when synthesizing GO-PMMA and GO-PDEGA.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Lin Cheng, Ying Wang, Yi-Ming Zhao, Dan-Dan Yang, Shuang-Shuang Gong, Zhong-Yi Liu, Kai-Yao Wang
Summary: Two methylammonium-templated metal vanadates with open-framework structures have been synthesized, where the methylammonium cations act as both charge-compensating and structure-directing agents. Compound 1 shows effective adsorption performance towards Eu(3+) via ion exchange, and magnetic study reveals antiferromagnetic exchange between Mn2+ ions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Richard Houska, Marvin Bjorn Stutz, Oliver Seitz
Summary: The study presents a reaction system for synthesizing Bcr-Abl tyrosine kinase inhibitors in water using native chemical ligation to form benzanilides. This method was successfully applied for the synthesis of thiolated ponatinib and GZD824 derivatives, with only a moderate effect on the affinity for Abl1 kinase. Nucleic acid-templated benzanilide formation could potentially find application in DNA-encoded combinatorial libraries for drug discovery.
Article
Materials Science, Ceramics
Mohan Raj Krishnan, Venugopal Rajendran, Edreese Alsharaeh
Summary: In this study, anti-reflective and high-transmittance optical films based on nanoporous silicon dioxide (SiO2) were fabricated using templated synthesis. The process involved preparing amorphous mesoporous polystyrene (PS) thin-film templates and using them for the preparation of nanoporous SiO2 thin films. The resulting films exhibited low reflectance of 6.9% and high transmittance of 96.5% in the visible light range.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Mathematics
Fehid Ishtiaq, Rahmat Ellahi, Muhammad Mubashir Bhatti, Sultan Z. Alamri
Summary: This paper investigates the mobility of cilia in a non-uniform tapered channel in the presence of an induced magnetic field and heat transfer. The Jeffrey fluid model is used to study the rheology of the fluid with cilia motion. By solving the formulated linear but coupled differential equations analytically, the physical mechanisms of significant parameters, such as velocity profile, magnetic force function, and current density, are described.
Article
Engineering, Electrical & Electronic
Benjamin G. Ward
Summary: This article introduces a new method for electromagnetic analysis of heterogeneous dielectric bodies with embedded PEC structures. The method provides more accurate results and high computational efficiency.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Thermodynamics
Nidhal Ben Khedher, Nouman Ijaz, Ahmad Zeeshan, Najma Saleem, Sadia Samar Ali, Ferjeni Zouidi, Arshad Riaz, ElSayed M. Tag-ElDin
Summary: Cilia are commonly found in mammalian cells and play a significant role in cell cycle movement and proliferation, as well as human and animal growth. They can generate propulsive forces that enable the movement of organisms in fluid settings. In this study, thermal and mass transfer in beating cilia of non-Newtonian Ree-Eyring fluid were measured in two- and three-dimensional channels using magnetohydrodynamics in porous medium. The governing equations for both the dusty and fluid phase were formulated, and exact solutions for velocity, temperature, concentration, and pressure gradient were calculated. The physical behavior was discussed by plotting dimensionless parameters for velocity, thermal, and concentration.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Chemistry, Analytical
Yunwei Zhao, Ying Wang, Ruimei Yang, Hui Zhang, Yanfang Zhao, Xiangmin Miao, Lihua Lu
Summary: A zero-background fluorescent aptasensor for ultrasensitive detection of pesticides was developed, using CuNPs as a fluorescent signal and a 3-D DNA walker as a signal amplifier. The aptasensor can detect Omethoate with high sensitivity in the linear range of 0-200 nM, providing a facile strategy for pesticide determination in food safety and environmental monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Biochemistry & Molecular Biology
Shuming Zhang, Xue Xiao, Jingwei Kong, Ke Lu, Shuo-Xing Dou, Peng-Ye Wang, Lu Ma, Yuru Liu, Guohong Li, Wei Li, Huidong Zhang
Summary: Strand displacement DNA synthesis (SDDS) is a crucial step in DNA replication with complex kinetics. Experiments with magnetic tweezers show that the rate and processivity of SDDS are influenced by force and dNTP concentration. Moreover, GC content has a significant impact on the processivity and rate of SDDS and exonuclease activity.
Article
Chemistry, Inorganic & Nuclear
Han Gao, Xianwei Zeng, Qiang Guo, Zhi Yang, Yanwen Deng, Hong Li, Dehua Xiong
Summary: In this study, Ca doped CuScO2 delafossite oxides were synthesized using the hydrothermal method, with increasing Ca dopant leading to thinner sheets and decreased conductivity. Additionally, all samples exhibited absorption in the visible light region, and the optical band gap values showed a blue shift with increasing Ca dopant. These results suggest potential applications of these materials in optoelectronic devices.
DALTON TRANSACTIONS
(2021)
