Extracellular proteins play a key role in generating and maintaining cohesion and adhesion in biological tissues. These "natural glues" are involved in vital biological processes such as blood clotting, wound healing and maintaining the structural integrity of tissues. Macromolecular assemblies of proteins can be functionally stabilized in a variety of ways in situ that include ionic interactio...

Atomic force microscope (AFM) has been developed at first for topography imaging; in addition, it is used for characterization of mechanical properties. Most researches have been primarily focused on rectangular single-beam probes to make vibration models simple. Recently, the U-shaped AFM probe is employed to determine sample elastic properties and has been developed to heat samples locally. I...

This study focuses on performance of H-shaped steel beams to CFT column rigid connections. To this end, the effects of internal and external stiffeners on hysteretic behavior of connections were studied. Comparative numerical analyses carried out on eight different connections. To this end finite element models were prepared using ANSYS and nonlinear cyclic analyses carried out. Results of this...

Cubicand rectangular-shape single crystals of a-AlF3 in sizes of 5–50 mm have been synthesized by a solid–vapor phase process. Using the electron beam induced decomposition of AlF3, a method is demonstrated for fabricating patterned aluminum nanowires in AlF3 substrate in a scanning electron microscope. By controlling the accelerating voltage, the beam current and scanning time, it is possible ...

TEM Cantilever Chips In article number 2301439, Chaojian Hou, Jing Zhao, Lixin Dong, and co-workers report a cantilever chip for in situ transmission electron microscopy (TEM). The consists of MoS2 opto-electromechanical sensor plasmonic antenna array built on the top Si3N4 cantilever, forming an electron-beam-transparent (thickness ≈100 nm) nano-opto-electromechanical system (NOEMS), enabling ...

In this paper we develop a numerical procedure using finite element and augmented Lagrangian meth-ods that simulates electro-mechanical pull-in states of both cantilever and fixed beams in microelectromechanical systems (MEMS) switches. We devise the augmented Lagrangian methods for the well-known Euler-Bernoulli beam equation which also takes into consideration of the fringing effect of electr...

When assembling MEMS devices or manipulating biological cells it is often beneficial to have information about the force that is being applied to these objects. This force information is difficult to measure at these scales and up to now has been implemented using laser-based optical force measurement techniques or piezoresistive devices. In this paper we demonstrate a method to reliably measur...

When assembling MEMS devices or manipulating biological cells it is often beneficial to have information about the force that is being applied to these objects. This force information is difficult to measure at these scales and up to now has been implemented using laser-based optical force measurement techniques or piezoresistive devices. In this paper we demonstrate a method to reliably measur...