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This paper presents the different processing steps of a new generic surface micromachining module for MEMS hermetic packaging at temperatures around 180 degrees C based on nickel plating and photoresist sacrificial layers. The advantages of…

Other Computer Science · Computer Science 2007-11-29 R. Hellin-Rico , J. -P. Celis , K. Baert , C. Van Hoof , A. Witvrouw

For today's electronics manufacturing process, the emphasis on stable functionality, durability, and fixed physical forms is designed to ensure long-term usability. However, this focus on robustness and permanence complicates the…

Human-Computer Interaction · Computer Science 2024-06-17 Tingyu Cheng , Zhihan Zhang , Han Huang , Yingting Gao , Wei Sun , Gregory D. Abowd , HyunJoo Oh , Josiah Hester

A variety of microparticles have been proposed for the sustained and localized delivery of drugs whit the objective of increasing therapeutic indexes by circumventing filtering organs and biological barriers. Yet, the geometrical,…

Deployable structures, essential across various engineering applications ranging from umbrellas to satellites, are evolving to include soft, morphable designs where geometry drives transformation. However, a major challenge for soft…

A simulation strategy based in the finite element model was developed to model the corrosion and mechanical properties of biodegradable Mg scaffolds manufactured by laser power bed fusion after immersion in simulated body fluid. Corrosion…

Applied Physics · Physics 2022-01-19 Mohammad Marvi-Mashhadi , Wahaaj Ali , Muzi Li , Carlos González , Javier LLorca

Self-assembling peptides (SAPs) have the ability to spontaneously assemble into ordered nanostructures enabling the manufacture of "designer" nanomaterials. The reversible molecular association of SAPs has been shown to offer great promise…

Materials Science · Physics 2016-01-14 Robabeh Gharaei , Giuseppe Tronci , Robert P. Davies , Parikshit Goswami , Stephen J. Russell

This report focuses on the effect of the surface topography of the substrate on the behavior of human mesenchymal stem cells from bone marrow (MSCs) before and after co-differentiation into adipocytes and osteoblasts. Picosecond pulsed…

Biological Physics · Physics 2018-01-29 R. Ortiz , S. Moreno-Flores , I. Quintana , MdM Vivanco , J. R. Sarasua , J. L. Toca-Herrera

We present a finite-element method modeling of acoustophoretic devices consisting of a single, long, straight, water-filled microchannel surrounded by an elastic wall of either borosilicate glass (pyrex) or the elastomer…

Fluid Dynamics · Physics 2016-10-12 Nils Refstrup Skov , Henrik Bruus

Monatomic antimony thin films have recently attracted attention for applications in phase change memory, nanophotonics, and 2D materials. Although some promising results have been reported, the true potential of Sb thin films is still…

Materials Science · Physics 2023-01-31 Daniel T. Yimam , Majid Ahmadi , Bart J. Kooi

Biodegradable and biocompatible 3D printable biomaterials with tunable mechanical properties and degradation rate adapted to target tissues were urgently required to manufacture scaffolds for tissue regeneration. Herein, a strategy based on…

The key to achieving high-quality van der Waals heterostructure devices made by stacking two-dimensional (2D) layered materials lies in having a clean interface without interfacial bubbles and wrinkles. In this study, the pinpoint pick-up…

Applied Physics · Physics 2019-05-01 Satoshi Toyoda , Teerayut Uwanno , Takashi Taniguchi , Kenji Watanabe , Kosuke Nagashio

An ultra-narrow slot waveguide is fabricated for use in highly-efficient, electro-optic-polymer-based, integrated-optic modulators. Measurement results indicate that $V_\pi L$'s below 1.2 V.mm are possible for balanced Mach-Zehnder…

Developing soft robots that can control their own life-cycle and degrade on-demand while maintaining hyper-elasticity is a significant research challenge. On-demand degradable soft robots, which conserve their original functionality during…

We introduce herein the advanced application of low pressure plasma procedures for the development of piezo and triboelectric mode I hybrid nanogenerators. Thus, plasma assisted deposition and functionalization methods are presented as key…

Fabricating high-performance and/or high-density flexible electronics on plastic substrates is often limited by the poor dimensional stability of polymer substrates. This can be mitigated by using glass carriers during fabrication, but…

Applied Physics · Physics 2022-03-03 Adam M. Weidling , Vikram S. Turkani , Vahid Akhavan , Kurt A. Schroder , Sarah L. Swisher

Thin films and van der Waals heterostructures derived from two-dimensional solids offer enormous potential for a broad range of novel, energy efficient devices, however, their use is currently hampered by slow, labor-intensive fabrication…

Motivated by recent advances in the inverse design of electromagnetic materials, we develop two methods for manipulating flexural waves on thin elastic plates. Firstly, we derive a technique for determining plate pinning or mass-loading of…

Applied Physics · Physics 2023-10-06 James R Capers

We report the development of a monolithic, mechanically tunable waveguide platform based on the flexible polymer polydimethyl siloxane (PDMS). Such devices preserve single mode guiding across a wide range of linear geometric distortions.…

A comprehensive evaluation of the effect and limitations of variable current density and electrolyte composition on layer porosity and microstructure changes of porous silicon (pSi) multilayer stacks is reported. Following these results,…

Poly-dl-lactic acid (PDLLA) was blended with type I collagen to attempt to overcome the instantaneous gelation of electrospun collagen scaffolds in biological environments. Scaffolds based on blends of type I collagen and PDLLA were…

Biological Physics · Physics 2015-10-01 Xiangchen Qiao , Stephen J. Russell , Xuebin Yang , Giuseppe Tronci , David J. Wood