Results 121 to 130 of about 2,377,765 (304)

Mechanical Programming of PEGDA‐β‐CD Polyrotaxane‐Based Hydrogels via Host–Guest Molecular Recognition

Advanced Functional Materials, EarlyView.
A mechanically programmable hydrogel for tissue engineering is developed by modulating the molecular threading density of poly(ethylene glycol) diacrylate‐β‐cyclodextrin (PEGDA‐β‐CD) polyrotaxane and combining it with β‐CD‐modified gelatin. The polyrotaxane‐guided transition from disordered pores to laminar microstructures enables precise tuning ...
Shiyi Chen, Xudan Xing, Haopu Su, Dominik Voll, Xiaohe Xu, Jiafeng Wan, Tongtong Cui, Christian W. Schmitt, Stefan Bräse, Peng Li, Patrick Théato   +10 more
wiley   +1 more source

Distributing Power : a Transition to a Civic Energy Future [PDF]

, 2015
The overarching challenge for UK energy policy is to ensure the delivery of secure, affordable energy in a way that meets the emission reductions targets laid out in the Climate Change Act (2008).
Realising Transition Pathways Engine Room, Emanuel-Yusuf, Damie, Robertson, Elizabeth, Hall, Stephan, Longhurst, Noel, Barton, John, O’Grady, Áine, Robinson, Elaine, Sherry-Brennan, Fionnguala, Johnson, Victoria   +9 more
core   +1 more source

Topological phase transition of Bi

, 2020
Compared with Bi2Se3 with its Dirac point in the bulk gap, the Dirac point of Bi2Te3 is in the valence band, then it is generally considered that it is difficult to observe the topological phase transition course in the Bi2Te3 system via nonmagnetic ...
J. Y. Hu, M. Y. Yao, B. Liu, W. X. Jiang, J. F. Wang, Q. Jing, Y. L. Li, C. H. Xu, F. F. Zhu, D. Qian, S. B. Li, Z. Q. Yang   +11 more
core   +1 more source

Thermoresponsive Liquid Crystalline Polymer Coatings Programmed by Field‐Induced Topological Defects for Tunable Optical and Topographical Responses

Advanced Functional Materials, EarlyView.
Resonant standing waves generate large‐area lattices of liquid‐crystal topological defects that are permanently encoded into polymer coatings by photopolymerization. The preserved director architecture produces thermally reconfigurable surface topographies while maintaining programmable optical functionality, demonstrating a scalable strategy for ...
Jacques A. Peixoto, Mufeeduzaman Chavilkkadan, Alexander Fusi, Marko Beslać, Dirk J. Broer, Etienne Brasselet, Danqing Liu   +6 more
wiley   +1 more source

A topological superconductor tuned by electronic correlations

Nature Communications
A topological superconductor, characterized by either a chiral order parameter or a topological surface state in proximity to bulk superconductivity, is foundational to topological quantum computing.
Haoran Lin, Christopher L. Jacobs, Chenhui Yan, Gillian M. Nolan, Gabriele Berruto, Patrick Singleton, Khanh Duy Nguyen, Yunhe Bai, Qiang Gao, Xianxin Wu, Chao-Xing Liu, Gangbin Yan, Suin Choi, Chong Liu, Nathan P. Guisinger, Pinshane Y. Huang, Subhasish Mandal, Shuolong Yang   +17 more
doaj   +1 more source

Tunable Dirac cones in single-layer selenium

New Journal of Physics, 2020
Dirac cone, one of the main characters of topological materials, provides us an approach to explore topological phase transitions and topological states. Single-element 2D-Xenes are prominent candidates for hosting Dirac cones.
Zhendong Chen, Yuefang Hu, Ziming Zhu, Wei Zhang   +3 more
doaj   +1 more source

Topological Phase Transitions [PDF]

, 2019
This chapter aims to develop a systematic theory of topological phase transitions (TPTs) and explores a few typical examples, including (1) quantum phase transitions (QPTs), (2) galactic spiral structures, (3) electromagnetic eruptions on solar surface, (4) boundary-layer separation of fluid flows, and (5) interior separation of fluid flows.
Tian Ma, Shouhong Wang
openaire   +1 more source

2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots

Advanced Functional Materials, EarlyView.
2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa, Arielle Berman, Laura Schwendeman, Ferdows Afghah, Seanbiron Johnson, Ritu Raman   +5 more
wiley   +1 more source

Controlling the TE-TM splitting of topological photonic interface states by precise incident angle adjustment

Communications Physics
Topological phases in photonic systems have garnered significant attention, often relying on precise structural design for generating non-trivial topological phases. However, this dependency on fixed structures limits their adaptability.
Pan Li, Yuan Guo, Yingjie Xi, Ying Xiang, Wei Gao, Xin Zhang, Degang Zhao   +6 more
doaj   +1 more source

Correlations and screening of topological charges in Gaussian random fields [PDF]

, 2003
Two-point topological charge correlation functions of several types of geometric singularity in Gaussian random fields are calculated explicitly, using a general scheme: zeros of n-dimensional random vectors, signed by the sign of their Jacobian ...
Dennis, MR, Dennis, M.R., Dennis, M R; id_orcid   +2 more
core   +1 more source