Results 121 to 130 of about 1,585,206 (294)

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

Microbial Metabolism and Environmental Controls of Acetate Cycling in the Northwest Pacific Ocean

Geophysical Research Letters
Microbial acetate metabolism is an important part of marine carbon cycling. We present a comprehensive study to constrain microbial acetate metabolism and its regulation in surface seawater of the northwest Pacific Ocean. We found that acetate oxidation (
Shi‐Hai Mao, Zhen Zhou, Shi‐Bo Yan, Gao‐Bin Xu, Xiao‐Jun Li, Hong‐Hai Zhang, Gui‐Peng Yang, Guang‐Chao Zhuang   +7 more
doaj   +1 more source

Dislocation-induced spin tunneling in Mn-12 acetate

, 2001
Comprehensive theory of quantum spin relaxation in Mn-12 acetate crystals is developed, that takes into account imperfections of the crystal structure and is based upon the generalization of the Landau-Zener effect for incoherent tunneling from excited ...
A. Fort, A. Garg, A.D. Kent, A.M. Gomes, C. Zener, C.-S. Park, D. A. Garanin, D.A. Garanin, D.A. Garanin, D.A. Garanin, D.A. Garanin, D.A. Garanin, D.A. Garanin, E. Kececioglu, E. M. Chudnovsky, E.M. Chudnovsky, E.M. Chudnovsky, E.M. Chudnovsky, E.M. Chudnovsky, F. Hartmann-Boutron, F. Luis, G.-H. Kim, I. Chiorescu, J. Villain, J.-Q. Liang, J.A.A.J. Perenboom, J.M. Hernández, J.R. Friedman, J.R. Friedman, J.R. Friedman, K. M. Mertes, L. Bokacheva, L. Gunther, L. Thomas, L. Thomas, L.D. Landau, M. Hennion, M.N. Leuenberger, M.N. Leuenberger, M.N. Leuenberger, M.N. Leuenberger, N.V. Prokof’ev, N.V. Prokof’ev, R. Sessoli, R. Sessoli, S.-Y. Lee, T. Choi, T. Lis, V.V. Dobrovitski, W. Wernsdorfer, W. Wernsdorfer, W. Wernsdorfer, X. Martínes Hidalgo, Y. Zhong, Y.-B. Zhang   +54 more
core   +1 more source

Multiscale Structuring of Hydroxyapatite via Two‐Photon Lithography of Nanocomposites

Advanced Functional Materials, EarlyView.
Hydroxyapatite scaffolds are of great interest in bone tissue engineering applications, ranging from 3D cell culture to regenerative medicine. Using two‐photon lithography of a transparent nanocomposite, hydroxyapatite microstructures with features ranging from submicron to centimeter‐scale are fabricated. This allows to mimic the natural bone geometry,
Leonhard Hambitzer, Jan Mathis Hornbostel, Richard Prediger, Sebastian Kluck, Michael Daub, Cornelia Lee‐Thedieck, Frederik Kotz‐Helmer   +6 more
wiley   +1 more source

Investigations of the inhibitory effects of tocopherol (vitamin E) on free radical deterioration of cellular membranes [PDF]

The inhibitory effects are investigated of d,1-alpha-tocopherol and d,1-alpha-tocopheryl acetate on the free radical deterioration of cellular membranes.
Richardson, D.
core   +1 more source

Formation of Stable Amorphous Calcium Phosphate and Collagen Assemblies by a Versatile Spray‐Drying Approach

Advanced Functional Materials, EarlyView.
Amorphous calcium phosphate (ACP) microparticles with long‐term and thermal stability are prepared with or without collagen using a scalable one‐pot spray‐drying process. Under simulated physiological conditions, they crystallize into biomimetic bone mineral and, when combined with collagen, form extrudable, fibrillar bone‐like 3D constructs.
Camila Bussola Tovani, Nessma Bennaceur, Celina Benkhellat, Tristan Georges, Clara Doisneau, Vaskar Sardhalia, Thierry Azaïs, Flora Lemaire, Halima Kerdjoudj, Mohamed Selmane, Capucine Sassoye, Marie Albéric, Cédric Boissière, Nadine Nassif   +13 more
wiley   +1 more source

Low temperature microwave emission from molecular clusters

, 2004
We investigate the experimental detection of the electromagnetic radiation generated in the fast magnetization reversal in Mn12-acetate at low temperatures.
A García-Santiago, A Hernández-Mínguez, Abragam A., Bal M., Chudnovsky E. M., Chudnovsky E. M., del Barco E., del Barco E., J Tejada, J. M Hernandez, M Jordi, Menshikov L. I., Menshikov L. I., Paulsen C., R Amigó, Suzuki Y.   +15 more
core   +2 more sources

SI‐bioATRP in Mesoporous Silica for Size‐Exclusion Driven Local Polymer Placement

Advanced Functional Materials, EarlyView.
An enzyme‐catalyzed surface‐initiated atom transfer radical polymerization (SI‐bioATRP) of an anionic monomer within mesoporous silica particles, using hemoglobin as a catalyst, allows for controlling the location of the formed polymer via size‐exclusion effects between the nanopores and the biomacromolecules, thereby opening routes to functional ...
Oleksandr Wondra, Eleonora Ornati, Robert Lehn, Joanna J. Mikolei, Hergen Breitzke, Raheleh Pardehkhorram, Gerd Buntkowsky, Nico Bruns, Annette Andrieu‐Brunsen   +8 more
wiley   +1 more source

From Single Atoms to Nanoparticles: Pathways Toward Efficient and Durable Pt/TiO2 Photocatalysts

Advanced Functional Materials, EarlyView.
Platinum single atoms on TiO2 nanosheets evolve into clusters and nanoparticles under ethanol photoreforming and thermal treatments. By controlling deposition and post‐treatments, particle size and location on specific facets are modulated. The study reveals how stability pathways determine efficiency, guiding the design of more durable photocatalysts.
Juan José Delgado, Enqi Bu, Yaning Han, Carlos López‐Cartes, Mónica Calatayud, Huiyan Pan, Xiaowei Chen   +6 more
wiley   +1 more source