Dieter Senk  Kevin Christmann  Stephan Geimer  Dominik Rzehak 《国际钢铁研究》2016,87(1):107-111

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David Hickie  Kevin Boulton  David Hickie  Patrick Ryan  Margaret Ince 《影响评估与项目评价》2013,31(3):238-242

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Maya Shinozaki  Kevin A. Roberts  Bennie van de Goor  T. William Clyne 《Advanced Engineering Materials》2013,15(10):986-994

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Kan Du  Christopher R. Knutson  Elizabeth Glogowski  Kevin D. McCarthy  Roy Shenhar  Vincent M. Rotello  Mark T. Tuominen  Todd Emrick  Thomas P. Russell  Anthony D. Dinsmore 《Small (Weinheim an der Bergstrasse, Germany)》2009,5(17):1974-1977

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Jelani Griffin  Anant Kumar Singh  Dulal Senapati  Eumin Lee  Kevin Gaylor  Jeanette Jones‐Boone  Paresh Chandra Ray 《Small (Weinheim an der Bergstrasse, Germany)》2009,5(7):839-845

The hepatitis C virus (HCV) is a single‐stranded (ss) RNA virus that is responsible for chronic liver diseases, such as cirrhosis, end‐stage liver disease, and hepatocellular carcinoma. Driven by the need to detect the presence of the HCV viral sequence, herein it is demonstrated for the first time that the nonlinear optical (NLO) properties of gold nanoparticles can be used for screening and quantifying HCV RNA without any modification, with excellent detection limit (80 pM ) and selectivity (single base‐pair mismatch). The hyper‐Rayleigh scattering (HRS) intensity increases 25 times when label‐free, 145‐mer, HCV ss‐RNA is hybridized with 400 pM target RNA. The mechanism of HRS intensity change is discussed with experimental evidence for a higher multipolar contribution to the NLO response of gold nanoparticles.  相似文献   

    

Hideyo Takatsuki  Kevin M. Rice  Shinichi Asano  B. Scott Day  Mizuki Hino  Kazuhiro Oiwa  Ryoki Ishikawa  Yuichi Hiratsuka  Taro Q. P. Uyeda  Kazuhiro Kohama  Eric R. Blough 《Small (Weinheim an der Bergstrasse, Germany)》2010,6(3):452-457

The utilization of motor proteins for the movement and assembly of synthetic components is currently a goal of nanoengineering research. Application of the myosin actin motor system for nanotechnological uses has been hampered due to the low flexural rigidity of individual F‐actin filaments. Here it is demonstrated how actin bundling can be used to affect the translational behavior of myosin‐propelled filaments, transport molecules across a motor‐patterned surface, and that the movement of bundled actin can be regulated photonically. These data suggest that actin bundling may significantly improve the applicability of the myosin motor for future nanotechnological applications.  相似文献   

    

Zheng M  Chen X  Bae IT  Ke C  Park C  Smith MW  Jordan K 《Small (Weinheim an der Bergstrasse, Germany)》2012,8(1):116-121

The radial mechanical properties of single-walled boron nitride nanotubes (SW-BNNTs) are investigated by atomic force microscopy. Nanomechanical measurements reveal the radial deformation of individual SW-BNNTs in both elastic and plastic regimes. The measured effective radial elastic moduli of SW-BNNTs are found to follow a decreasing trend with an increase in tube diameter, ranging from 40.78 to 1.85 GPa for tube diameters of 0.58 to 2.38 nm. The results show that SW-BNNTs have relatively lower effective radial elastic moduli than single-walled carbon nanotubes (SWCNTs). The axially strong, but radially supple characteristics suggest that SW-BNNTs may be superior to SWCNTs as reinforcing additives for nanocomposite applications.  相似文献   

    

Takao Someya  Ananth Dodabalapur  Jia Huang  Kevin C. See  Howard E. Katz 《Advanced materials (Deerfield Beach, Fla.)》2010,22(34):3799-3811

Organic semiconductor films are susceptible to noncovalent interactions, trapping and doping, photoexcitation, and dimensional deformation. While these effects can be detrimental to the performance of conventional circuits, they can be harnessed, especially in field‐effect architectures, to detect chemical and physical stimuli. This Review summarizes recent advances in the use of organic electronic materials for the detection of environmental chemicals, pressure, and light. The material features that are responsible for the transduction of the input signals to electronic information are discussed in detail.  相似文献   

    

Ultan Mc Carthy  Gashaw Ayalew  Francis Butler  Kevin McDonnell  Shane Ward 《Packaging Technology and Science》2009,22(4):241-248

The effects of packaged content, packaging material, transponder inlay design, reader antenna polarization, interrogation power and transponder orientation on the detection rate of ultra‐high frequency radio frequency identification (UHF RFID) passive transponders were studied. The influence of individual factors and their interactions were determined using general linear model analysis of variance. Influences originated in order of importance, from sample type, antenna polarization, power and inlay design. Important interactions in decreasing order of significance exist between: power and antenna polarization; sample type and antenna polarization; sample type and inlay design; inlay design and antenna polarization; sample type, power and antenna polarization; sample type and power; inlay design and power; sample type, inlay design and power. It was also observed that random orientation of tags did not cause a statistically significant variation in tag detection rate. It can be concluded that the use of UHF RFID for item level of food requires multi‐parameter assessment before hand. Copyright © 2009 John Wiley & Sons, Ltd.  相似文献   

    

Mensinger  Janell Lynn; Lynch  Kevin G.; TenHave  Thomas R.; McKay  James R. 《Canadian Metallurgical Quarterly》2007,75(5):775

A previous randomized trial with 224 alcohol and/or cocaine addicts who had completed an initial phase of treatment indicated that 12 weeks of telephone-based continuing care yielded higher abstinence rates over 24 months than did group counseling continuing care. The current study examined mediators of this treatment effect. Results suggested that self-help involvement during treatment and self-efficacy and commitment to abstinence 3 months after treatment mediated subsequent abstinence outcomes. These analyses controlled for substance use prior to the assessment of mediators. Conversely, there was no evidence that self-help beliefs or social support mediated the treatment effect. These results are consistent with a model in which treatment effects are first accounted for by changes in behavior, followed by changes in self-efficacy and in commitment to abstinence. (PsycINFO Database Record (c) 2011 APA, all rights reserved)  相似文献