Results 111 to 120 of about 73,795 (320)

Structurally Defined Water‐Soluble Metallofullerene Derivatives towards Biomedical Applications

Angewandte Chemie International Edition, Volume 62, Issue 3, January 16, 2023., 2023
A modular metallobuckytrio (MBT) platform provides a family of structurally defined, water‐soluble metallofullerene derivatives that can safely carry rare‐earth elements in tailorable molecules, showing promise in biomedicines including MRI contrast agents and photosensitizers. Abstract Endohedral metallofullerenes (EMFs) are excellent carriers of rare‐
Yanbang Li, Rohin Biswas, William P. Kopcha, Thierry Dubroca, Laura Abella, Yue Sun, Ryan A. Crichton, Christopher Rathnam, Letao Yang, Yao‐Wen Yeh, Krishnendu Kundu, Antonio Rodríguez‐Fortea, Josep M. Poblet, Ki‐Bum Lee, Stephen Hill, Jianyuan Zhang   +15 more
wiley   +1 more source

Fully Passive Electrochemical Oxygen Sensor Enabled With Organic Electrochemical Transistor

Advanced Materials Technologies, EarlyView.
A wireless oxygen sensor that operates with low power without batteries, using organic electrochemical transistors (OECTs) powered by near‐field communication (NFC) is presented. The sensor combines an oxygen‐permeable membrane and a gel electrolyte to detect oxygen in air and complex liquids, making way for sustainable sensor technologies.
Lia Giulia D'Amico, Chenhong Zhang, Francesco Decataldo, Vito Vurro, Marta Tessarolo, Isacco Gualandi, Federica Mariani, Erika Scavetta, Tobias Cramer, Beatrice Fraboni   +9 more
wiley   +1 more source

Circum-Galactic Medium in the Halo of Quasars

Frontiers in Astronomy and Space Sciences, 2017
The properties of circum-galactic gas in the halo of quasar host galaxies are investigated analyzing Mg II 2800 and C IV 1540 absorption-line systems along the line of sight close to quasars.
Riccardo Ottolina, Renato Falomo, Aldo Treves, Michela Uslenghi, Jari K. Kotilainen, Riccardo Scarpa, Emanuele Paolo Farina   +6 more
doaj   +1 more source

Modulating D33 Coefficients Through In Situ AgF and Ag2O Growth in PVDF Composites for High‐Performance Piezoelectric Nanogenerators

Advanced Materials Technologies, EarlyView.
In situ, nanoparticle doping enhances the piezoelectric coefficient (**d₃₃**) of PVDF to ≈12 pC/N, while in situ growth of AgF and Ag₂O dopants increases β‐phase concentration. The nanogenerator achieves a 35 V open‐circuit voltage and 1.6 µA short‐circuit current, powering 10 blue LEDs and charging a 50 nF capacitor within 10 s.
Renjun Liu, Ki Hoon Shin, Yu Zhu, Qing Liu, Bing Ji, Guoxing Sun, Zongjin Li, Dadimuni De Silva, Aisling Stewart, Matteo Lorenzoni, Ingo Ludtke, Oliver A. Williams, Wenlong Ming, Giorgio Divitini, Jung Inn Sohn, Bo Hou   +15 more
wiley   +1 more source

Very Extended Ionized Gas Discovered around NGC 1068 with the Circumgalactic Hα Spectrograph

The Astrophysical Journal
We have performed wide-field, ultra-low-surface-brightness H α emission-line mapping around NGC 1068 with the newly commissioned Circumgalactic H α Spectrograph.
Nicole Melso, David Schiminovich, Meghna Sitaram, Ignacio Cevallos-Aleman, Bárbara Cruvinel Santiago, Brian Smiley, Hwei Ru Ong   +6 more
doaj   +1 more source

Two views of globular cluster stars in the Galactic halo

EPJ Web of Conferences, 2012
In [1] we reported the discovery in the Sloan Digital Sky Survey-II/SEGUE spectroscopic database of a small subset of halo red giants, 2.5%, with CN and CH band strengths indicative of globular-cluster-like carbon and nitrogen abundances.
Martell S.L.
doaj   +1 more source

Origin of the Laser‐Induced Picosecond Spin Current Across Magnetization Compensation in Ferrimagnetic GdCo

Advanced Optical Materials, EarlyView.
Picosecond spin current pulses generated by ferrimagnetic GdCo are studied via THz emission spectroscopy. Due to the GdCo micromagnetic structure, the spin current vanishes at compensation when a magnetic field is applied but persists for zero field. At room temperature, the THz spin current is dominated by Co. At low temperatures, Gd can significantly
Guillermo Nava Antonio, Quentin Remy, Jun‐Xiao Lin, Yann Le Guen, Dominik Hamara, Jude Compton‐Stewart, Joseph Barker, Thomas Hauet, Michel Hehn, Stéphane Mangin, Chiara Ciccarelli   +10 more
wiley   +1 more source

Impact of dark matter galactic halo models on wormhole geometry within f(Q,T) gravity

Nuclear Physics B
This study investigates the possible existence of wormhole solutions with dark matter galactic halo profiles in the background of f(Q,T) gravity. The primary focus of the current study is to find the significance of dark matter (DM) in the search for ...
Moreshwar Tayde, Zinnat Hassan, P.K. Sahoo   +2 more
doaj  

Solar and Galactic Magnetic Halo Structure: Force-Free Dynamos?

Galaxies, 2019
Magnetic fields may relax dissipatively to the minimum energy force-free condition whenever they are not constantly created or distorted. We review the axially symmetric solutions for force-free magnetic fields, especially for the non-linear field. A new
Richard Henriksen
doaj   +1 more source

The Hydrogen Clouds in the Galactic Halo [PDF]

Symposium - International Astronomical Union, 2004
New 21cm observations with the Green Bank Telescope show that a significant fraction of the HI in the inner Galaxy's halo ~ 1 kpc from the midplane exists in the form of discrete clouds. Some look very much like a Spitzer (1968) “standard” diffuse cloud but with their HI in two phases.
openaire   +2 more sources