Elec:troactive thin-film polymers a.re increa.sinp;ly beinp; used as sensors and actuators in aerospace structures [1,2]. They also have sip;nificant potential for applications in musc:le mechanisms and micro-electro-mechanical systems (MEMS). In these applications, polymer films of thickness varyinp; between 20 and :100 tLin are utilized. Actuation of these polymers is attributed to piezoelect...

Inkjet–printing technology was used to apply biodegradable and biocompatible polymeric coatings of poly(D, L lactide) with the antiproliferative drugs simvastatin (SMV) and paclitaxel (PCX) on coronary metal stents. A piezoelectric dispenser applied coating patterns of very fine droplets (300 xL) and ink jetting was optimized to develop uniform, accurate and reproducible coatings of high yields...

in this paper, a numerical solution procedure is presented for the forced vibration of a piezoelectric nanowire under thermo-electro-mechanical loads based on the nonlocal elasticity theory within the framework of timoshenko beam theory. using hamilton’s principle, the nonlocal governing differential equations are derived. the governing equations and the related boundary conditions are discreti...

Piezoelectric ceramic and polymeric separators have been proposed to effectively regulate Li deposition suppress dendrite growth, but such still fail satisfactorily support durable operation of lithium metal batteries owing the fragile layer or low‐piezoelectricity polymer as employed. Herein, by combining PVDF‐HFP ferroelectric BaTiO 3 , we develop a homogeneous, single‐layer composite separat...

This paper presents a finite element formulation for the dynamics analysis of the steady and transient states of a nonlinear piezoelectric beam. A piezoelectric beam with damping is studied under harmonic excitation. A numerical method is used for this analysis. In the paper, the central difference formula of four order is used and compared with the central difference formula of two order in th...

Xylella fastidiosa is a fastidious Gram-negative bacterium that associated with several important plant diseases, and regulated as quarantine pest in many countries where strategies are implemented to prevent its introduction spread. To enact efficient measures, effective early detection of the pathogen essential, especially because global trade goods increases risks alien pathogens. this study...

energy harvesting from surrounding environment has been attractive for many researchers in recent years. therefore, developing appropriate test apparatus to study energy harvesting mechanisms and their performance is of paramount importance. due to their electromechanical characteristics, piezoelectric materials are used for harvesting energy from environmental vibrations. for optimum utilizati...

In this paper, we present mathematical analyses to consider the effect of material properties on the sensitivity of the Microelectromechanical systems (MEMS) piezoelectric hydrophone and improve the sensitivity by choosing the proper material. The selected structure in the present paper is a piezoelectric hydrophone able to work at low frequencies. The piezoelectric hydrophones are widely used ...

In this work we designed a MoS2 nanoplate-based nanoprobe for fluorescence imaging of intracellular ATP and photodynamic therapy (PDT) via ATP-mediated controllable release of (1)O2. The nanoprobe was prepared by simply assembling a chlorine e6 (Ce6) labelled ATP aptamer on MoS2 nanoplates, which have favorable biocompatibility, unusual surface-area-to-mass ratio, strong affinity to single-stra...