scholarly journals Paper-Based Electrochemical Devices for the Pharmaceutical Field: State of the Art and Perspectives

2020 ◽  
Vol 8 ◽  
Author(s):  
Amina Antonacci ◽  
Viviana Scognamiglio ◽  
Vincenzo Mazzaracchio ◽  
Veronica Caratelli ◽  
Luca Fiore ◽  
...  
Keyword(s):  
State Of The Art ◽  
Field State ◽  
Electrochemical Devices

Nanocarbon materials in water disinfection: state-of-the-art and future directions

Nanoscale ◽  
2019 ◽  
Vol 11 (20) ◽  
pp. 9819-9839 ◽  
Author(s):  
Liang Wang ◽  
Ziwen Yuan ◽  
H. Enis Karahan ◽  
Yilei Wang ◽  
Xiao Sui ◽  
...  
Keyword(s):  
State Of The Art ◽  
Water Disinfection ◽  
Future Directions ◽  
Filtration Membranes ◽  
Nanocarbon Materials ◽  
Electrochemical Devices

The major modes of using nanocarbon materials for water disinfection: hydrogel filters, filtration membranes, recyclable aggregates, electrochemical devices, and photocatalysts.

scholarly journals Prospects for Hermetic Sealing of Scaled-Up Photoelectrochemical Hydrogen Generators for Reliable and Risk Free Operation

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4176 ◽  
Author(s):  
Sonya Calnan ◽  
Stefan Aschbrenner ◽  
Fuxi Bao ◽  
Erno Kemppainen ◽  
Iris Dorbandt ◽  
...  
Keyword(s):  
State Of The Art ◽  
Early Stage ◽  
Scale Up ◽  
Energy System ◽  
Future Research ◽  
Reliable Operation ◽  
Global Energy ◽  
Hermetic Sealing ◽  
Electrochemical Devices ◽  
Global Energy Supply

Photo-electrochemical (PEC) systems have the potential to contribute to de-carbonation of the global energy supply because solar energy can be directly converted to hydrogen, which can be burnt without the release of greenhouse gases. However, meaningful deployment of PEC technology in the global energy system, even when highly efficient scaled up devices become available, shall only be a reality when their safe and reliable operation can be guaranteed over several years of service life. The first part of this review discusses the importance of hermetic sealing of up scaled PEC device provided by the casing and sealing joints from a reliability and risk perspective. The second part of the review presents a survey of fully functional devices and early stage demonstrators and uses this to establish the extent to which the state of the art in PEC device design address the issue of hermetic sealing. The survey revealed that current material choices and sealing techniques are still unsuitable for scale–up and commercialization. Accordingly, we examined possible synergies with related photovoltaic and electrochemical devices that have been commericalised, and derived therefrom, recommendations for future research routes that could accelerate the development of hermetic seals of PEC devices.

scholarly journals Trace-level beryllium analysis in the laboratory and in the field: state of the art, challenges and opportunities

2006 ◽  
Vol 8 (6) ◽  
pp. 605 ◽  
Author(s):  
Michael J. Brisson ◽  
Kevin Ashley ◽  
Aleksandr B. Stefaniak ◽  
Amy A. Ekechukwu ◽  
Kathryn L. Creek
Keyword(s):  
State Of The Art ◽  
Trace Level ◽  
Field State ◽  
Challenges And Opportunities

scholarly journals Prospects for hermetic sealing of scaled-up photoelectrochemical hydrogen generators for reliable and risk free operation

2019 ◽  
Author(s):  
Sonya Calnan ◽  
Stefan Aschbrenner ◽  
Fuxi Bao ◽  
Erno Kemppainen ◽  
Iris Dorbandt ◽  
...  
Keyword(s):  
Solar Energy ◽  
Service Life ◽  
Greenhouse Gases ◽  
State Of The Art ◽  
Scale Up ◽  
Energy System ◽  
Future Research ◽  
Reliable Operation ◽  
Hermetic Sealing ◽  
Electrochemical Devices

Photoelectrochemical systems have the potential to contribute to de-carbonation of the energy system because solar energy can be directly converted to hydrogen which can be burnt without the release of greenhouse gases. However, meaningful deployment of photoelectrochemical (PEC) technology in the global energy system, even when highly efficient scaled up devices become available, shall only be a reality when their safe and reliable operation can be guaranteed over serveral years of service life. The first part of the review discusses the importance of hermetic sealing of up scaled PEC device provided by the casing and sealing joints from a reliability and risk perspective. The second part of the review presents a survey of fully functional devices and early demonstrators and uses this to establish the extent to which the state of the art in PEC device design address the issue of hermetic sealing. The survey revealed that current material choices and sealing techniques are still unsuitable for scale –up and commercialization. Accordingly, we examined possible synergies with related photovoltaic and electrochemical devices that have been commericalised and derived therefrom, recommendations for future research routes that could accelerate the development of hermetic sealings of PEC devices.

Magnetic Nanofilms for Biomedical Applications

2010 ◽  
Vol 1 (2) ◽  
Author(s):  
Edoardo Sinibaldi ◽  
Virginia Pensabene ◽  
Silvia Taccola ◽  
Stefano Palagi ◽  
Arianna Menciassi ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Ultrathin Films ◽  
Biomedical Applications ◽  
State Of The Art ◽  
Working Environment ◽  
Precise Positioning ◽  
Magnetic Components ◽  
Surgical Wounds ◽  
Field State ◽  
Effective Use

Polymeric ultrathin films, also called nanofilms or nanosheets, show peculiar properties making them potentially useful for several applications in biomedicine, e.g., as nanoplasters for localized drug release or as a new solution for closing endoluminal surgical wounds. In this sense, one of most challenging issues is film control in the working environment: the possibility of including magnetic components, such as magnetic nanoparticles or nanotubes, paves the way for the effective use of nanofilms in the human body, by allowing precise positioning by an external magnetic field. State of the art and new perspectives of magnetic nanofilms for biomedical applications are here presented, including fabrication, modeling, characterization and validation.

scholarly journals Clay-Inspired MXene-Based Electrochemical Devices and Photo-Electrocatalyst: State-of-the-Art Progresses and Challenges

2018 ◽  
Vol 30 (12) ◽  
pp. 1704561 ◽  
Author(s):  
Hou Wang ◽  
Yan Wu ◽  
Xingzhong Yuan ◽  
Guangming Zeng ◽  
Jin Zhou ◽  
...  
Keyword(s):  
State Of The Art ◽  
Electrochemical Devices

Practical Picture Processing

1974 ◽  
Vol 32 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Radiation Damage ◽  
Coherence Length ◽  
Spatial Information ◽  
State Of The Art ◽  
Coherent Radiation ◽  
The State ◽  
Energy Spread ◽  
Electron Micrograph ◽  
Picture Processing ◽  
Molecular Skeleton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.

A Macintosh Interface for the Cameca Camebax-Micro Electron Microprobe

1990 ◽  
Vol 48 (1) ◽  
pp. 438-439
Author(s):  
Carl E. Henderson
Keyword(s):  
Electron Microprobe ◽  
Processing Speed ◽  
Word Processing ◽  
State Of The Art ◽  
Computer Control ◽  
Third Party ◽  
Disk Storage ◽  
The Past ◽  
User Facility ◽  
Instrument Control

Over the past few years it has become apparent in our multi-user facility that the computer system and software supplied in 1985 with our CAMECA CAMEBAX-MICRO electron microprobe analyzer has the greatest potential for improvement and updating of any component of the instrument. While the standard CAMECA software running on a DEC PDP-11/23+ computer under the RSX-11M operating system can perform almost any task required of the instrument, the commands are not always intuitive and can be difficult to remember for the casual user (of which our laboratory has many). Given the widespread and growing use of other microcomputers (such as PC’s and Macintoshes) by users of the microprobe, the PDP has become the “oddball” and has also fallen behind the state-of-the-art in terms of processing speed and disk storage capabilities. Upgrade paths within products available from DEC are considered to be too expensive for the benefits received. After using a Macintosh for other tasks in the laboratory, such as instrument use and billing records, word processing, and graphics display, its unique and “friendly” user interface suggested an easier-to-use system for computer control of the electron microprobe automation. Specifically a Macintosh IIx was chosen for its capacity for third-party add-on cards used in instrument control.

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