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Closed system transfer device

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https://www.readbyqxmd.com/read/28874560/ultrafast-fluorescent-decay-induced-by-metal-mediated-dipole-dipole-interaction-in-two-dimensional-molecular-aggregates
#1
Qing Hu, Dafei Jin, Jun Xiao, Sang Hoon Nam, Xiaoze Liu, Yongmin Liu, Xiang Zhang, Nicholas X Fang
Two-dimensional molecular aggregate (2DMA), a thin sheet of strongly interacting dipole molecules self-assembled at close distance on an ordered lattice, is a fascinating fluorescent material. It is distinctively different from the conventional (single or colloidal) dye molecules and quantum dots. In this paper, we verify that when a 2DMA is placed at a nanometric distance from a metallic substrate, the strong and coherent interaction between the dipoles inside the 2DMA dominates its fluorescent decay at a picosecond timescale...
September 5, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28855476/validation-of-simultaneous-analytical-method-of-veterinary-drugs-in-foods-using-new-automatic-pretreatment-equipment
#2
Yoichi Yatsukawa, Daisuke Kusuno, Takahiro Matsuda, Kazuhiro Kobayashi, Tetsuro Ohba
New automatic pretreatment equipment (FASVED; Food Automatic Analytical Systems for Veterinary Drugs) was developed. FASVED consists of ten main units: reagent dispenser, homogenizer, transfer hand, lid opening/closing device, centrifugal separator, pipette, shaker, column purification device, centrifugal evaporator and cooling device, and it is capable of freely combining operations by these units. A validation study was performed on two methods for determination of 178 veterinary drugs in livestock products, swine muscle, egg and shrimp, according to the method validation guideline of the Ministry of Health, Labour and Welfare of Japan...
2017: Shokuhin Eiseigaku Zasshi. Journal of the Food Hygienic Society of Japan
https://www.readbyqxmd.com/read/28841099/survey-of-guidelines-and-current-practices-for-safe-handling-of-antineoplastic-and-other-hazardous-drugs-used-in-24-countries
#3
Patricia I Mathias, Barbara A MacKenzie, Christine A Toennis, Thomas H Connor
Purpose A survey of guidelines and current practices was conducted to examine the safe handling procedures for antineoplastic and other hazardous drugs that are used in 24 countries including the Americas, Europe, the Mideast, Far East, and Australia. Methods Subject experts were asked to complete a brief survey regarding safe handling guidelines and practices for hazardous drugs in their countries. Questions addressed practices for handling monoclonal antibodies, the use of closed-system transfer devices, medical surveillance practices, and measurements of compliance with existing guidelines...
January 1, 2017: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/28839127/multi-orbital-charge-transfer-at-highly-oriented-organic-metal-interfaces
#4
Giovanni Zamborlini, Daniel Lüftner, Zhijing Feng, Bernd Kollmann, Peter Puschnig, Carlo Dri, Mirko Panighel, Giovanni Di Santo, Andrea Goldoni, Giovanni Comelli, Matteo Jugovac, Vitaliy Feyer, Claus Michael Schneidery
The molecule-substrate interaction plays a key role in charge injection organic-based devices. Charge transfer at molecule-metal interfaces strongly affects the overall physical and magnetic properties of the system, and ultimately the device performance. Here, we report theoretical and experimental evidence of a pronounced charge transfer involving nickel tetraphenyl porphyrin molecules adsorbed on Cu(100). The exceptional charge transfer leads to filling of the higher unoccupied orbitals up to LUMO+3. As a consequence of this strong interaction with the substrate, the porphyrin's macrocycle sits very close to the surface, forcing the phenyl ligands to bend upwards...
August 25, 2017: Nature Communications
https://www.readbyqxmd.com/read/28750540/electrochromic-sensor-for-multiplex-detection-of-metabolites-enabled-by-closed-bipolar-electrode-coupling
#5
Wei Xu, Kaiyu Fu, Paul W Bohn
Biosensors based on converting electrochemical signals into optical readouts are attractive candidates as low-cost, high-throughput sensor platforms. Here, we described a closed bipolar electrode (CBE)-based two-cell electrochromic device for sensing multiple metabolites, using the simultaneous detection of lactate, glucose, and uric acid as a model system. In the two-cell configuration, an analytical cell contains a redox mediator combined with a specific oxidase, e.g., lactate oxidase, glucose oxidase, or uricase, to form an electrochemical mediator-electrocatalyst pair that supports redox cycling...
July 28, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28745439/a-double-stimuli-responsive-fluorescent-center-for-monitoring-of-food-spoilage-based-on-dye-covalently-modified-eumofs-from-sensory-hydrogels-to-logic-devices
#6
Xiao-Yu Xu, Xiao Lian, Ji-Na Hao, Chi Zhang, Bing Yan
Unsafe food is a huge threat to human health and the economy, and detecting food spoilage early is an ongoing and imperative need. Herein, a simple and effective strategy combining a fluorescence sensor and one-to-two logic operation is designed for monitoring biogenic amines, indicators of food spoilage. Sensors (methyl red@lanthanide metal-organic frameworks (MR@EuMOFs)) are created by covalently modifying MR into NH2 -rich EuMOFs, which have a high quantum yield (48%). A double-stimuli-responsive fluorescence center is produced via energy transfer from the ligands to Eu(3+) and MR...
July 26, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28714119/high-performance-polymers-sandwiched-with-chemical-vapor-deposited-hexagonal-boron-nitrides-as-scalable-high-temperature-dielectric-materials
#7
Amin Azizi, Matthew R Gadinski, Qi Li, Mohammed Abu AlSaud, Jianjun Wang, Yi Wang, Bo Wang, Feihua Liu, Long-Qing Chen, Nasim Alem, Qing Wang
Polymer dielectrics are the preferred materials of choice for power electronics and pulsed power applications. However, their relatively low operating temperatures significantly limit their uses in harsh-environment energy storage devices, e.g., automobile and aerospace power systems. Herein, hexagonal boron nitride (h-BN) films are prepared from chemical vapor deposition (CVD) and readily transferred onto polyetherimide (PEI) films. Greatly improved performance in terms of discharged energy density and charge-discharge efficiency is achieved in the PEI sandwiched with CVD-grown h-BN films at elevated temperatures when compared to neat PEI films and other high-temperature polymer and nanocomposite dielectrics...
July 17, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28541102/considering-closed-system-transfer-devices-for-safe-handling-of-drugs
#8
Elaine Lennan
No abstract text is available yet for this article.
May 25, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28507160/emergent-magnetism-at-transition-metal-nanocarbon-interfaces
#9
Fatma Al Ma'Mari, Matthew Rogers, Shoug Alghamdi, Timothy Moorsom, Stephen Lee, Thomas Prokscha, Hubertus Luetkens, Manuel Valvidares, Gilberto Teobaldi, Machiel Flokstra, Rhea Stewart, Pierluigi Gargiani, Mannan Ali, Gavin Burnell, B J Hickey, Oscar Cespedes
Charge transfer at metallo-molecular interfaces may be used to design multifunctional hybrids with an emergent magnetization that may offer an eco-friendly and tunable alternative to conventional magnets and devices. Here, we investigate the origin of the magnetism arising at these interfaces by using different techniques to probe 3d and 5d metal films such as Sc, Mn, Cu, and Pt in contact with fullerenes and rf-sputtered carbon layers. These systems exhibit small anisotropy and coercivity together with a high Curie point...
May 30, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28410594/physical-human-robot-interaction-of-an-active-pelvis-orthosis-toward-ergonomic-assessment-of-wearable-robots
#10
Nicolò d'Elia, Federica Vanetti, Marco Cempini, Guido Pasquini, Andrea Parri, Marco Rabuffetti, Maurizio Ferrarin, Raffaele Molino Lova, Nicola Vitiello
BACKGROUND: In human-centered robotics, exoskeletons are becoming relevant for addressing needs in the healthcare and industrial domains. Owing to their close interaction with the user, the safety and ergonomics of these systems are critical design features that require systematic evaluation methodologies. Proper transfer of mechanical power requires optimal tuning of the kinematic coupling between the robotic and anatomical joint rotation axes. We present the methods and results of an experimental evaluation of the physical interaction with an active pelvis orthosis (APO)...
April 14, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28332444/a-functional-electrical-stimulation-system-for-human-walking-inspired-by-reflexive-control-principles
#11
Lin Meng, Bernd Porr, Catherine A Macleod, Henrik Gollee
This study presents an innovative multichannel functional electrical stimulation gait-assist system which employs a well-established purely reflexive control algorithm, previously tested in a series of bipedal walking robots. In these robots, ground contact information was used to activate motors in the legs, generating a gait cycle similar to that of humans. Rather than developing a sophisticated closed-loop functional electrical stimulation control strategy for stepping, we have instead utilised our simple reflexive model where muscle activation is induced through transfer functions which translate sensory signals, predominantly ground contact information, into motor actions...
April 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28315750/fun-cube-based-brain-gym-cognitive-function-assessment-system
#12
Tao Zhang, Chung-Chih Lin, Tsang-Chu Yu, Jing Sun, Wen-Chuin Hsu, Alice May-Kuen Wong
The aim of this study is to design and develop a fun cube (FC) based brain gym (BG) cognitive function assessment system using the wireless sensor network and multimedia technologies. The system comprised (1) interaction devices, FCs and a workstation used as interactive tools for collecting and transferring data to the server, (2) a BG information management system responsible for managing the cognitive games and storing test results, and (3) a feedback system used for conducting the analysis of cognitive functions to assist caregivers in screening high risk groups with mild cognitive impairment...
March 3, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28315550/hazardous-drugs-and-usp-800-implications-for-nurses
#13
Seth Eisenberg
BACKGROUND: Although guidelines for the safe handling of hazardous drugs (HDs) have existed for several decades, they have not been enforceable by state or federal agencies. USP <800>, the latest chapter issued by the U.S. Pharmacopeial Convention, expands on existing guidelines and provides detailed information on compounding and administration. Unlike current guidelines, USP <800> will be enforced by each state's board of pharmacy or their delegated agency.
. OBJECTIVES: This article provides a brief overview of the dangers associated with HDs and the implications of USP <800> for nurses...
April 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/28268953/on-the-capacity-of-diffusion-based-molecular-communications-with-sinw-fet-based-receiver
#14
Murat Kuscu, Ozgur B Akan
Molecular communication (MC) is a bio-inspired communication method based on the exchange of molecules for information transfer among nanoscale devices. Although MC has been extensively studied from various aspects, limitations imposed by the physical design of transceiving units have been largely neglected in the literature. Recently, we have proposed a nanobioelectronic MC receiver architecture based on the nanoscale field effect transistor-based biosensor (bioFET) technology, providing noninvasive and sensitive molecular detection at nanoscale while producing electrical signals at the output...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28264504/error-based-observer-of-a-charge-couple-device-tracking-loop-for-fast-steering-mirror
#15
Tao Tang, Chao Deng, Tao Yang, Daijun Zhong, Ge Ren, Yongmei Huang, Chengyu Fu
The charge couple device (CCD) tracking loop of a fast steering mirror (FSM) is usually used to stabilize line of sight (LOS). High closed-loop bandwidth facilitates good performance. However, low-rate sample and time delay of the CCD greatly limit the high control bandwidth. This paper proposes an error-based observer (EBO) to improve the low-frequency performance of the CCD tracking system. The basic idea is by combining LOS error from the CCD and the controller output to produce the high-gain observer, forwarding into the originally closed-loop control system...
February 28, 2017: Sensors
https://www.readbyqxmd.com/read/28227160/on-the-capacity-of-diffusion-based-molecular-communications-with-sinw-fet-based-receiver
#16
Murat Kuscu, Ozgur B Akan, Murat Kuscu, Ozgur B Akan, Ozgur B Akan, Murat Kuscu
Molecular communication (MC) is a bio-inspired communication method based on the exchange of molecules for information transfer among nanoscale devices. Although MC has been extensively studied from various aspects, limitations imposed by the physical design of transceiving units have been largely neglected in the literature. Recently, we have proposed a nanobioelectronic MC receiver architecture based on the nanoscale field effect transistor-based biosensor (bioFET) technology, providing noninvasive and sensitive molecular detection at nanoscale while producing electrical signals at the output...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28060296/studying-soft-matter-and-biological-systems-over-a-wide-length-scale-from-nanometer-and-micrometer-sizes-at-the-small-angle-neutron-diffractometer-kws-2
#17
Aurel Radulescu, Noemi Kinga Szekely, Marie-Sousai Appavou, Vitaliy Pipich, Thomas Kohnke, Vladimir Ossovyi, Simon Staringer, Gerald J Schneider, Matthias Amann, Bo Zhang-Haagen, Georg Brandl, Matthias Drochner, Ralf Engels, Romuald Hanslik, Günter Kemmerling
The KWS-2 SANS diffractometer is dedicated to the investigation of soft matter and biophysical systems covering a wide length scale, from nm to µm. The instrument is optimized for the exploration of the wide momentum transfer Q range between 1x10(-4) and 0.5 Å(-1) by combining classical pinhole, focusing (with lenses), and time-of-flight (with chopper) methods, while simultaneously providing high-neutron intensities with an adjustable resolution. Because of its ability to adjust the intensity and the resolution within wide limits during the experiment, combined with the possibility to equip specific sample environments and ancillary devices, the KWS-2 shows a high versatility in addressing the broad range of structural and morphological studies in the field...
December 8, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28033282/evaluation-of-counseling-environmental-alteration-on-pharmacy-patient-communication-qualifications-a-case-control-study
#18
Hongyan Gu, Lulu Sun, Rui Jin, Fang Li, Yuanyuan Wei, Zhengzheng Xie
The closed pharmaceutical counseling room was so hard to be established for most of hospitals in China since limited space in the out-patient lobby, which dramatically affected the qualification of medication consultant. Few reports studied the importance of closed pharmaceutical counseling room construction.To investigate the necessary of closed pharmaceutical counseling room construction in the outpatient lobby.The closed pharmaceutical counseling room was established and equipped with hospital electronic information system, patient education flashes, and we-Chat in web...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27984708/a-primary-standard-source-of-radon-222-based-on-the-hpge-detector
#19
M Y A Mostafa, M Vasyanovich, M Zhukovsky
The present paper describes the prototype of a calibration standard system for radon concentrations to be used in establishing the traceability of radon concentration measurements in dwellings. Radon gas was generated with a radium-226 solid source in a certified volume as a closed system. The activity of the radon that was released in the closed system was determined from the difference between the absolute activity of the standard radium solid source and the residual radon decay products ((214)Bi or (214)Pb)...
February 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/27972996/closed-system-transfer-device-for-preparation-of-antineoplastic-drugs-in-a-malaysian-public-hospital-is-it-truly-cost-saving
#20
H Chan, C J Lim, M A Hassali, F Saleem
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
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