Results 91 to 100 of about 243,886 (290)

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

Advanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono, Anna Puiggalí‐Jou, Greta Cocchi, Mariangela Miccoli, Katharina Maniura‐Weber, Marcy Zenobi‐Wong, Esther Amstad   +6 more
wiley   +1 more source

Advancements in MEMS Micromirror and Microshutter Arrays for Light Transmission Through a Substrate

Micromachines
This paper reviews and compares electrostatically actuated MEMS (micro-electro-mechanical system) arrays for light modulation and light steering in which transmission through the substrate is required.
Shilby Baby, Mustaqim Siddi Que Iskhandar, Md Kamrul Hasan, Steffen Liebermann, Jiahao Chen, Hasnain Qasim, Shujie Liu, Eslam Farrag, Dennis Löber, Naureen Ahmed, Guilin Xu, Hartmut Hillmer   +11 more
doaj   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Engineering thin 3D Li-composite foil negative electrodes with high mechanical toughness

Nature Communications
Current three-dimensional lithium negative electrodes are plagued by inherent trade-offs among mechanical robustness, thin processability, and electrochemical performance.
Yu-Hao Wang, Shuang-Jie Tan, Chao-Hui Zhang, Jun-Chen Guo, Xiao-Xi Luo, Ruo-Xi Jin, Lin-Bo Huang, Xiao-Chuan Su, Chen Li, Xu-Sheng Zhang, Xing Zhang, Sen Xin, Rui Wen, Juan Zhang, Yu-Guo Guo   +14 more
doaj   +1 more source

Streamer evolution arrest governed amplified AC breakdown strength of graphene and CNT colloids

, 2018
The present article experimentally explores the concept of large improving the AC dielectric breakdown strength of insulating mineral oils by the addition of trace amounts of graphene or CNTs to form stable dispersions.
Chattopadhyay, Ankur, Dhar, Purbarun, Harikrishnan, A R, Maganti, Lakshmi Sirisha   +3 more
core   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Spin-locking effect in the nanoscale ordered perovskite cobaltite LaBaCo2O6

, 2007
A new nanoscale ordered perovskite cobaltite, which consists of 90 degree ordered domains of the layered-112 LaBaCo2O6 has been evidenced by high resolution- transmission electron microscopy.
Boullay, Ph., Caignaert, V., Kundu, Asish K., Pralong, V., Rautama, E. -L., Raveau, B.   +5 more
core   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

MEMS Smart Glass with Larger Angular Tuning Range and 2D Actuation

Micromachines
Millions of electrostatically actuatable micromirror arrays have been arranged in between windowpanes in inert gas environments, enabling active daylighting in buildings for illumination and climatization. MEMS smart windows can reduce energy consumption
Md Kamrul Hasan, Mustaqim Siddi Que Iskhandar, Steffen Liebermann, Shilby Baby, Jiahao Chen, Muhammad Hasnain Qasim, Dennis Löber, Roland Donatiello, Guilin Xu, Hartmut Hillmer   +9 more
doaj   +1 more source

An embedding potential definition of channel functions

, 2004
We show that the imaginary part of the embedding potential, a generalised logarithmic derivative, defined over the interface between an electrical lead and some conductor, has orthogonal eigenfunctions which define conduction channels into and out of the
A. Levy Yeyati, H. Ishida, J. E. Inglesfield, K. M. Schep, M. Büttiker, S. Crampin, V. Isakov   +6 more
core   +1 more source