Results 121 to 130 of about 233,511 (375)

How the Arrangement of Platinum Atoms on Ruthenium Nanoparticles Improves Hydrogen Evolution Activity

Advanced Materials, EarlyView.
A synthetic strategy for the formation of Pt islands and their transformation into Pt atomic strings on Ru nanoparticle surfaces is presented. The thermodynamically favored configuration of Pt strings on Ru catalyst is demonstrated to catalyze HER via the faster Volmer–Tafel pathway with a significantly improved intrinsic activity, owing to the well ...
Qinyu Li, Soshan Cheong, Agus R. Poerwoprajitno, Shuting Xiang, Anatoly I. Frenkel, Yuwei Yang, Nicholas M. Bedford, Sohaib Umer, Martina Lessio, Ichiro Ohnishi, Zeno R. Ramadhan, Dale L. Huber, Liming Dai, Wolfgang Schuhmann, J. Justin Gooding, Richard D. Tilley   +15 more
wiley   +1 more source

Finite element analysis for a coupled bulk-surface partial differential equation

, 2013
In this paper, we define a new finite element method for numerically approximating the solution of a partial differential equation in a bulk region coupled with a surface partial differential equation posed on the boundary of the bulk domain.
C. M. Elliott, T. Ranner
semanticscholar   +1 more source

Harnessing the Potential of Dip‐Pen Nanolithography to Pattern Meta‐Chemical Surfaces with Glutathione Inks: An Electrochemical Sensor for Pb(II) and Hg(II)

Advanced Materials Interfaces, EarlyView.
Meta‐chemical surfaces for portable electrochemical sensors are developed using the DPN method. Sensitivity is influenced by the exposed surface, pattern pitch, and binding strength between the ligand and cations. Therefore, it can be regulated by altering these parameters, which is a significant result in the heavy‐metal sensor field.
Zorik Shamish, Krishna K. Yadav, Haya Kornweitz, Moshe Zohar, Dror Shamir, Raz Jelinek, Ariela Burg   +6 more
wiley   +1 more source

A Sleeve Alters the Pressure‐Stretch Curve of a Hyperelastic Balloon to Enable Pre‐Programmed Sequencing

Advanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
This article demonstrates that encasing a hyperelastic balloon in an inextensible sleeve greatly increases its burst pressure. This simple mechanical behavior can be used to produce an asymmetric inflation‐deflation sequence for coupled balloons with different thicknesses so they could serve as a soft robot's rear and front anchors when driven from a ...
Ifat Gertler, Katherine J. Kuchenbecker
wiley   +1 more source

Existence of solutions to nonhomogeneous Dirichlet problems with dependence on the gradient

Electronic Journal of Differential Equations, 2018
The goal of this article is to explore the existence of positive solutions for a nonlinear elliptic equation driven by a nonhomogeneous partial differential operator with Dirichlet boundary condition.
Yunru Bai
doaj  

Convergence analysis of a dual-wind discontinuous Galerkin method for an elliptic optimal control problem with control constraints

Results in Applied Mathematics
This paper investigates a symmetric dual-wind discontinuous Galerkin (DWDG) method for solving an elliptic optimal control problem with control constraints. The governing constraint is an elliptic partial differential equation (PDE), which is discretized
Satyajith Bommana Boyana, Thomas Lewis, Sijing Liu, Yi Zhang   +3 more
doaj   +1 more source

Targeted Local Delivery via Fiber‐Embedded Flexible Microchannels Integrated with Film‐Based Implantable Probes

Advanced Materials Technologies, EarlyView.
In this study, a fiber‐embedded drug delivery channel for implantable microprobes, demonstrating the first functional drug delivery system using flexible LCP‐based probes, is developed. The design incorporates fibers for site‐selective drug delivery and electrical functions. The utilization of monolithic thermal bonding simplifies fabrication.
Jaehwan Byun, Jungseub Lee, Hyun Ryul Ryu, Geun Jae Lee, Sung Eun Lee, Sung June Kim, Noo Li Jeon   +6 more
wiley   +1 more source

Droplet‐Based Synthesis of Nanogels for Controlled Drug Delivery via Two Photon Polymerization‐3D Printed Microfluidic Device

Advanced Materials Technologies, EarlyView.
A miniaturized microfluidic device is 3D printed via two‐photon polymerization and used for the droplet‐based microfluidic synthesis of nanogels for controlled drug delivery purposes. Tuning the fluid flow parameters, the microfluidic system enables the modulation of nanogel size and properties, preserving an extremely low polydispersity, beyond the ...
Vladimir Matining, Camillo Colli, Emanuela Jacchetti, Giulia Nicoletti, Laura Rosanò, Manuela Teresa Raimondi, Bianca Maria Colosimo, Emanuele Mauri, Davide Moscatelli   +8 more
wiley   +1 more source

Pick‐and‐Place Grippers with Tunable Adhesion from Capped Soft Hollow Pillar Structure

Advanced Materials Technologies, EarlyView.
Mushroom‐shaped soft hollow pillars (SHPs) with a mushroom cap, or capped SHPs (C‐SHPs) are introduced for improved tunable adhesion under pneumatic actuation. The mushroom cap optimizes stress distribution and alters crack initiation on the contact interface, leading to significantly improved adhesion strength and tunability.
Yanbing Tang, Farshad Goodarzi, Guangchao Wan, Wanliang Shan   +3 more
wiley   +1 more source

Transformative 4D Printed SMPs into Soft Electronics and Adaptive Structures: Innovations and Practical Insights

Advanced Materials Technologies, EarlyView.
This review highlights recent advancements in 3DP techniques that incorporate emerging multifunctional SMP materials for applications in e‐electronics, soft actuators, biomedical devices, and more. Abstract Shape memory polymers (SMP) have recently gained significant attention as multifunctional materials for flexible and wearable electronics ...
Muhammad Yasir Khalid, Adam Otabil, Omar Samir Mamoun, Khalid Askar, Mahdi Bodaghi   +4 more
wiley   +1 more source