Results 81 to 90 of about 98,809 (293)

The Role of Cacao Powder in Enhancing Skin Moisture and Reducing Wrinkles: A 12-Week Clinical Trial and In Vitro Study

Current Issues in Molecular Biology
Skin aging is driven by a combination of internal and external mechanisms, with ultraviolet (UV) radiation being a prominent external factor contributing to photoaging.
Sang Gyu Lee, Ngoc Ha Nguyen, Young In Lee, Inhee Jung, In Ah Kim, Hyunsook Jang, Hoyeon Shin, Ju Hee Lee   +7 more
doaj   +1 more source

Gauge fields, ripples and wrinkles in graphene layers

, 2008
We analyze elastic deformations of graphene sheets which lead to effective gauge fields acting on the charge carriers. Corrugations in the substrate induce stresses, which, in turn, can give rise to mechanical instabilities and the formation of wrinkles.
Baruch Horovitz, Bolotin, Bosak, Brandt, Castro Neto, Cerda, Cortijo, de Juan, de Parga, F. Guinea, Fasolino, Fogler, Foster, Garcia-Sanchez, Genzer, Giesbers, González, González, Guinea, Guinea, Guinea, Guinea, Guitter, Herbut, Horovitz, Ishigami, Katsnelson, Kolesnikov, Lammert, Landau, Ludwig, Mariani, Mañes, McCann, Meyer, Morozov, Morpurgo, Nicklow, Novoselov, Novoselov, P. Le Doussal, Riu, Sabio, Seung, Stauber, Stolyarova, Suzuura, Tikhonenko, Wehling, Witten   +49 more
core   +1 more source

Curvature‐Tuned Friction at Electrified Ionic Liquid Interfaces

Advanced Functional Materials, EarlyView.
Graphene curvature plays a key role in friction electrotunability at single‐asperity contacts lubricated by ionic liquids. A 9 nm radius yields stronger tunability than larger radii, with distinct friction coefficients at low and high loads indicating a shift in the slippage plane.
Wei Song, Md Ashiqur Rahman, Qianlu Zheng, Nathaniel Hawthorne, James D. Batteas, Rui Qiao, Rosa M. Espinosa‐Marzal   +6 more
wiley   +1 more source

A Role for Contrast Gain Control in Skin Appearance [PDF]

, 2019
Apparent contrast can be suppressed or enhanced when presented within surrounding images. This contextual modulation is typically accounted for with models of contrast gain control.
Batres, Carlota, Jones, Alex L., Porcheron, Aurélie, Russell, Richard   +3 more
core   +1 more source

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

Advanced Functional Materials, EarlyView.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo, Jiawang Zeng, Qian Chen, Valentin A. Bobrin, Deepak Mishra, Anthony Chun Yin Yuen, Yixia Zhang, Cyrille Boyer, Jin Zhang   +8 more
wiley   +1 more source

Age and gender differences in skin characteristics: a study of 2543 Japanese individuals using advanced skin imaging techniques

Journal of Cutaneous Immunology and Allergy
Skin aging is a multifaceted process influenced by genetic, environmental, and immunological factors, resulting in visible changes such as wrinkles, pigmentation, and alterations in skin texture.
Yurika Osuji, Jun Omatsu, Shinichi Sato, Ayumi Yoshizaki, Ayumi Yoshizaki   +4 more
doaj   +1 more source

Robotic Ironing with 3D Perception and Force/Torque Feedback in Household Environments

, 2017
As robotic systems become more popular in household environments, the complexity of required tasks also increases. In this work we focus on a domestic chore deemed dull by a majority of the population, the task of ironing.
Balaguer, Carlos, Estevez, David, Fernandez-Fernandez, Raul, Victores, Juan G.   +3 more
core   +1 more source

Tracing Sub‐Monolayer Contamination on Wafer‐Scale 2D Materials

Advanced Functional Materials, EarlyView.
Sub‐monolayer adventitious carbon contamination limits the performance and reproducibility of 2D material‐based devices. This study demonstrates scanning helium microscopy (SHeM) as a non‐destructive, ultra‐sensitive tool for wafer‐scale imaging of surface cleanliness.
Chenyang Zhao, Sam M. Lambrick, Ke Wang, Shaoliang Guan, Aleksandar Radić, David J. Ward, Andrew P. Jardine, Boyao Liu   +7 more
wiley   +1 more source

Fast Chemo‐Responsive Shape Memory of Stretchable Polymer Nanocomposite Aerogels Fabricated by One‐Step Method

Macromolecular Materials and Engineering, 2020
A new type of stretchable poly(caprolactone)/graphene oxide (PCL/GO) aerogel with fast chemo‐responsive shape memory effect is fabricated by one‐step method of a sol‐gel procedure.
Changchun Wang, Meiqing Wang, Sanjiu Ying, Jianping Gu   +3 more
doaj   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source