Submitted for the MAR07 Meeting of The American Physical Society A tunable DNA spring in a nanochannel ROBERT RIEHN, RORY STAUNTON, SHUANG FANG LIM, Dept. of Physics, NC State University, ROBIJN BRUINSMA, Department of Physics, UC Los Angeles, WALTER REISNER, Technical University of Denmark, ROBERT AUSTIN, Dept. of Physics, Princeton University — dsDNA becomes linearized when it is confined to ...

Abstract The photocatalytic degradation, as an environmental-friendly technology, has great significance for cost-effective and efficient catalysis processes, wherein piezo-photocatalysis can significantly increase the catalytic degradation rate using both solar mechanical energy. Here, a ternary heterostructure PVDF/ZnO/Au (PZA) nanobrush photocatalyst with high piezo-photocatalytic efficiency...

Abstract In this study, poly(vinylidene fluoride) (PVDF) nanoparticles (NPs) are fabricated with the preferred electroactive δ‐phase due to interfacial crystallization at ternary phase system, i.e., PVDF‐DMF‐water ambient conditions. Further, surfaces of PVDF NPs modified in situ copolymerized polydopamine‐polyethylenimine (PDA‐PEI) ensure well dispersion poorly dispersive water. The piezorespo...

Piezo proteins have recently been identified as ion channels mediating mechanosensory transduction in mammalian cells. Characterization of these channels has yielded important insights into mechanisms of somatosensation, as well as other mechano-associated biologic processes such as sensing of shear stress, particularly in the vasculature, and regulation of urine flow and bladder distention. Ot...

Intracytoplasmic sperm injection (ICSI) is not only used in human assisted reproduction (ART), but it is also widely employed for veterinary in vitro fertilization during rare species preservation, germ-line rescue of transgenic animals or for any veterinary assisted conception. Piezo-assisted ICSI, which was first described in 1995 [1], can be employed for assisted conception in animals in whi...

Bu bildiride, açık döngülü piezo-elektrik doğrusal sürücüler için yüksek çözünürlükte histerez telafisi gösterilmektedir. Piezo-elektrik malzemelerde yapıları gereği mevcut olan doğrusalsızlıklar, Bouc-Wen modeli kullanılarak model tabanlı bir kontrol algoritması ile telafi edilmiştir. Telafi için kullanılan yöntemin histerez davranışında zaman, değişen frekans ve farklı hareket genişliği neden...

Micro Piezo technology is offering superior features in ink ejection performance, compatibility with a wide variety of inks, and durability. As a result, this technology has already being utilized effectively in various commercial and industrial fields such as photo lab printing, digital printing, textile printing, and color filter manufacturing. However, new printheads that have a larger numbe...

Performance and reliability of microelectronic devices are governed by the mechanical strain within device layers. Typically, this is studied with uniformly distributed applied externally or internally. The focus study on AlGaN/GaN high electron mobility transistors (HEMTs), which expected to be more sensitive due its piezo-resistive piezo-electric nature. Accordingly, we hypothesize that even ...

When performing vibration-based measurement techniques, e.g., for structural health monitoring, piezo-electric elements are often used as the sensor and/or actuator part due to their durability. The connection between element and test structure plays a decisive role in quality of results obtained process. In addition stable mode-independent vibration transmission, further requirements such reve...

Typical holding force of piezo motors is defined by friction force, required to make motor move. However, increase of friction force is not inconsequent for motor performances in terms of speed, max motion force and lifetime (tribology). In this paper, a new motor, offering high resolution positioning and holding position when unpowered, is presented. Based on a Stepping Piezo Actuator [1] at i...