Results 141 to 150 of about 1,037,765 (269)

Superlubricious Surfaces Through Surface Attached Hydrogels Obtained by C,H‐insertion Crosslinking

Advanced Functional Materials, EarlyView.
Taking synovial joints as a source of inspiration, the friction properties of surfaces covered with 1d‐swelling polyelectrolyte hydrogels in combination with a shear‐thinning aqueous lubricant are studied. Such systems obtained by C,H insertion crosslinking show superlubricious behavior, even surpassing the friction values reported for the natural ...
Renato Maraula, Maryam Bahrami, Safora Jafari, Oswald Prucker, Tobias Amann, Jürgen Rühe   +5 more
wiley   +1 more source

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

Advanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu, Hao Wu, Hoi Ying Chung, Yun Hau Ng   +3 more
wiley   +1 more source

Ultra‐Effective Light‐Activated Antibacterial Activity via Carboxyl Functionalized Graphene Quantum Dots and Films

Advanced Functional Materials, EarlyView.
Carboxyl‐functionalized graphene quantum dots (cGQDs) exhibit high singlet oxygen quantum yield due to strong spin–orbit coupling. cGQDs achieve minimum bactericidal concentration of only 0.4 µg mL−1 against S. aureus under low‐intensity illumination.
Muhammad Hassnain, Laure S. van Hofwegen, Humeyra Nur Kaleli, Temirlan Kubanaliev, Zafer Eroglu, Asim Onal, Payal P. S. Balraadjsing, Onder Metin, Fahri Alkan, Sebastian A. J. Zaat, Sedat Nizamoglu   +10 more
wiley   +1 more source

Inter‐Layer Diffusion of Excitations in 2D Perovskites Revealed by Photoluminescence Reabsorption

Advanced Functional Materials, EarlyView.
Inter‐layer diffusion of photoexcitations is monitored in thin films of the 2D perovskite (PEA)2PbI4 by tracking time‐dependent changes in photoluminescence spectra induced by photon reabsorption effects. A low out‐of‐plane excitation diffusion coefficient of 0.26 × 10−4 cm2 s−1 is determined through 1D diffusion modeling.
Jiaxing Du, Marcello Righetto, Manuel Kober‐Czerny, Siyu Yan, Karim A. Elmestekawy, Henry J. Snaith, Michael B. Johnston, Laura M. Herz   +7 more
wiley   +1 more source

Improving the Capacity Retention of Poly(vinylphenothiazine) as Battery Electrode Material by Pore Size Engineering of Porous N‐Doped Carbon Nanospheres as Conductive Additive

Advanced Functional Materials, EarlyView.
By using (meso)porous N‐doped carbon nanospheres with tailored intraparticle porosity and constant particle size as conductive carbon in PVMPT‐based organic battery electrodes, the complete volume of the carbon is accessible for the immobilization of PVMPT, resulting in high accessible specific capacities while maintaining a good rate capability and ...
Niklas Ortlieb, Bärbel Tengen, Verena Perner, Martin Winter, Birgit Esser, Peter Bieker, Anna Fischer   +6 more
wiley   +1 more source

Scaling‐Up of Structural Superlubricity: Challenges and Opportunities

Advanced Functional Materials, EarlyView.
At increasing length‐scales, structural superlubricity (SSL) faces challenges from physical and chemical energy dissipation pathways. This study reviews recent experimental and theoretical progress on these challenges facing the scaling‐up of SSL, as well as perspectives on future directions for realizing and manipulating macroscale superlubricity ...
Penghua Ying, Xiang Gao, Diana Berman, Oded Hod, Michael Urbakh   +4 more
wiley   +1 more source

Near‐Infrared Circularly Polarized Electroluminescence with Switchable Handedness in Organic LEDs

Advanced Functional Materials, EarlyView.
The first fully‐organic circularly polarized near‐infrared OLED, using a co‐assembled active layer of ITIC and a chiral inducer, exhibits dissymmetry values up to 0.074 and 1.65 Wsr−1m−2 radiance. The circular polarization sign can be switched by manipulating the position of the recombination zone, resulting in enhanced device performance and stability.
Francesco Zinna, Chiara Botta, Silvia Luzzati, Lorenzo Di Bari, Umberto Giovanella   +4 more
wiley   +1 more source

Annual Report to the Nation on the Status of Cancer, featuring state-level statistics after the onset of the COVID-19 pandemic. [PDF]

Cancer
Sherman RL, Firth AU, Henley SJ, Siegel RL, Negoita S, Sung H, Kohler BA, Anderson RN, Cucinelli J, Scott S, Benard VB, Richardson LC, Jemal A, Cronin KA.   +13 more
europepmc   +1 more source

Minuscule Amounts of Pt Single Atoms Selectively Loaded on Minor (101) Facet of Anatase Crystallites Enables Outstanding Utilization Efficiency for Photocatalytic H2 Production

Advanced Functional Materials, EarlyView.
Ar–H2 annealing triggers redistribution of pre‐deposited Pt single atoms (SAs) on faceted anatase nanosheets, with selective SAs accumulation on the minor (101) facetsthus the co‐catalytic SA‐sites are positioned only where they are needed, i.e. at the electron exit facets.
Shanshan Qin, Nikita Denisov, Benedict Osuagwu, Jan Kolařík, Bidyut Bikash Sarma, Zdeněk Baďura, Patrik Schmuki   +6 more
wiley   +1 more source

Ultrafast momentum-resolved visualization of the interplay between phonon-mediated scattering and plasmons in graphite. [PDF]

Sci Adv
Barantani F, Claude R, Iyikanat F, Madan I, Sapozhnik AA, Puppin M, Weaver B, LaGrange T, de Abajo FJG, Carbone F.   +9 more
europepmc   +1 more source