Results 81 to 90 of about 10,522 (245)

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Cantilever beam-based piezoelectric micromachined ultrasonic transducer with post processing soft interconnecting strategy for in-air rangefinding

Microsystems & Nanoengineering
Despite of good performance immunity to stress and high transmitting/receiving sensitivity advantages, the fabrication imperfection induced asynchronous vibration and the resultant prolonged ring-down tail severely limit the potential of the cantilever ...
Yan Wang, Peng Chen, Junning Zhang, Zihan Li, Hongbin Yu   +4 more
doaj   +1 more source

Operation Limits of Integrated Photo‐Rechargeable Batteries

Advanced Materials, EarlyView.
This study elucidates the operational limitations of integrated photo‐rechargeable batteries. We demonstrate that the photo‐charging process is fundamentally restricted not only by material‐to‐material energy level alignment but also by transient capacitive charge accumulation within the cathode framework.
Byung‐Man Kim, Arvind Pujari, Hooman Abbasi, Weidong Xu, Yutong Han, Samuel D. Stranks, Michael De Volder   +6 more
wiley   +1 more source

Reversible Hydration Tuning of Polar Order and Large Nonlinear Optical Response in a 2D van der Waals Crystal, LiInP2S6

Advanced Materials, EarlyView.
Hydration‐induced symmetry breaking transforms layered LiInP2S6${\rm LiInP}_2{\rm S}_6$ from a nonpolar to a chiral‐polar phase, producing a giant enhancement of non‐resonant second‐harmonic generation. The reversible tuning of polar order through molecular intercalation establishes a strategy for dynamically controlling nonlinear optical ...
Jadupati Nag, Saugata Sarker, Michael J. Waters, Safdar Imam, Himirkanti Sarkar, Anthony Richardella, James M. Rondinelli, Mercouri G. Kanatzidis, Venkatraman Gopalan   +8 more
wiley   +1 more source

Volumetric Analysis of Different Obturating Techniques Using CBCT: An In-vivo Study

Journal of Pharmacy and Bioallied Sciences
Introduction: Root canal obturation is a critical phase in endodontic therapy, aimed at preventing reinfection and ensuring long-term therapeutic success.
Rahul Kappedath Kuttikkottil, Aayasha Sangal, Haritha Babu, Nikhil Puri, Varsha Maria Sebastian, Vipin Chembuzha Krishnadas, Tisson Varghese Job   +6 more
doaj   +1 more source

Photoactive Tweezers

Advanced Materials, EarlyView.
A photoactive tweezers system based on photoactive colloids is developed and systematically investigated in this study. Through experimental and theoretical methods, we demonstrate that the photoredox reaction catalyzed by a dye‐sensitized TiO2 particle generates a strong positive phototaxis, enabling self‐entrapment in the beam center.
Jingyuan Chen, Qingxin Guo, Shiwei Zhang, Donghao Cui, Changjin Wu, Pei Xu, Wei Wang, Kai Lou, Binglin Zeng, Jinyao Tang   +9 more
wiley   +1 more source

Ultrathin liquid cells for microsecond time-resolved cryo-EM

Nature Communications
Microsecond time-resolved cryo-electron microscopy promises to significantly advance our understanding of protein function by rendering cryo-electron microscopy (cryo-EM) fast enough to observe proteins at work.
Wyatt A. Curtis, Jakub Wenz, Constantin R. Krüger, Sarah V. Barrass, Marcel Drabbels, Ulrich J. Lorenz   +5 more
doaj   +1 more source

Asymmetric Lamellar Templating of the Perovskite/C60 Interface for Scalable Inverted Perovskite Photovoltaics

Advanced Materials, EarlyView.
Asymmetric lamellar templating at the perovskite/C60 interface is achieved using a laterally polarized indole spacer. Surface anchoring and Ind–Ind assembly form a π‐rich lamellar interphase that supports uniform C60 contact formation, suppresses recombination, preserves electron extraction, and enables certified high‐efficiency cells and modules with ...
Taeyoon Ki, Jong‐Guk Ahn, Sangcho Kim, Sangjin Kim, Min‐Ho Lee, In‐Wook Hwang, Jinju Jeong, Soobin Shim, Jaeboong Ahn, Jun Hong Park, Seungjin Lee, Jung‐Yong Lee, Yousoo Kim, Ju‐Hyeon Kim, Hongkyu Kang, Sukwon Hong, Kwanghee Lee   +16 more
wiley   +1 more source

Universal Strategy for Phase‐Selective Synthesis of Monolayer TMDs via Colloidal Chemistry

Advanced Materials, EarlyView.
ABSTRACT Colloidal synthesis of monolayer transition metal dichalcogenides (TMDs) remains challenging regarding uniform size, thickness, and crystalline phase. While significant progress has been made in phase engineering, a unified chemical strategy for on‐demand selection of both 2H and 1T′ phases across multiple TMD systems within a single chemical ...
Hoon Ju Lee, Weiguang Yang, Dae Young Park, Mrinal Kanti Kabiraz, Benoit Mahler, Hyeon Suk Shin   +5 more
wiley   +1 more source

Radar signatures of sea lions at K‐band and W‐band

IET Radar, Sonar & Navigation
The millimetre wave radar signatures of sea lions collected from three animals in the outdoor seal pool available at the Sea Mammal Research Unit in St Andrews in the Autumn of 2021 is reported.
Samiur Rahman, Aleksanteri B. Vattulainen, Duncan A. Robertson, Ryan Milne   +3 more
doaj   +1 more source