biosensor-based measurement Articles

  • Glucose biosensor based on platinum nanowires: a clinical study

    We describe the process of modification of the platinum (Pt) nanowire surface and subsequent immobilisation of enzyme glucose oxidase (GOx) on Pt nanowires (PtNWs) for direct glucose measurement. A cyclic voltammetry technique was used to measure electrochemical oxidation between GOx and glucose. PtNW arrays were first fabricated and then functionalised with cysteamine, which in turn acted as a ...


    By Inderscience Publishers

  • 5 Processes Where Quality and EHS Convergence Makes Complete Sense

    There are also many overlaps between the quality standards such as ISO 9001, ISO 14001 and EHS standards such as OHSAS 18001. As businesses look to find greater efficiencies by streamlining and integrating business processes, as well as get a better return on their IT investments, quality and EHS convergence makes sense.  Forward-looking businesses are already finding areas ...


    By EtQ, LLC

  • Using THz spectroscopy to analyse atomic layer deposited (ALD) TiN

    Oxford Instruments and das-nano demonstrate non-destructive wafer based thickness and resistivity metrology for PEALD TiN. Commonly titanium nitride (TiN) thickness and resistivity wafer fab in-line metrology is based on ellipsometry and 4-point probe resistivity mapping. Alternative and relatively slower or more complex methods are X-ray photoelectron spectroscopy (XPS), X-ray ...


    By Oxford Instruments plc

  • How Does a Gas Analyser Work?

    Whatever you want to detect, you need to identify a property of the object that is easy-enough to measure. When it comes to monitoring and analysis of gaseous species (atoms or more commonly molecules), it turns out that it often is possible to utilize the optical properties of the gas. You need a light source, a light detector, and a characteristic behaviour of the gaseous species in question ...


    By Opsis AB

  • Recent Federal Developments

    TSCA/FIFRA EPA Extends Comment Period For Draft Guidance For Pesticide Registrants On Notifications, Non-notifications, And Minor Formulation Amendments: On October 5, 2017, the U.S. Environmental Protection Agency (EPA) issued a notice of extension of the comment period for the draft guidance  ...


    By Bergeson & Campbell, P.C.

  • Performance-Based Measurement Systems

    Many of the Environmental Protection Agency's (EPA's) methods used to monitor air, water and soil for environmental contaminants prescribe step-by-step details on how the chemical analysis must be conducted and prohibit any deviations or variations. The EPA has recognized that monitoring equipment and technology have improved tremendously over the last few years; that environmental media do not ...


    By WSP | Parsons Brinckerhoff

  • Managing, measuring and reporting knowledge-based resources in hospitals

    The paper firstly analyses the importance of knowledge-based resources for the achievement of a competitive advantage for the firm. Additionally, the paper also addresses the strategic significance of this type of intangible resources in hospitals. Secondly, the paper argues that "what is measured is managed" and, therefore, proposes specific indicators to measure the different types of ...


    By Inderscience Publishers

  • Evaluation of the Gaussian puff model based on measurements

    Concentrations calculated with the Gaussian puff model have been compared with measurements obtained from the dispersion experiments conducted at Lillestrom, Copenhagen, and Kincaid. The following dispersion parameters were used in the Gaussian puff model: Pasquill-Gifford, Briggs, Brookhaven and OML. Comparisons of the calculated and measured values of the concentrations have been carried out ...


    By Inderscience Publishers

  • Measuring the Effectiveness of Watershed-Based General Stormwater Permitting

    ABSTRACTThe U.S. EPA and most water resources professionals advocate holistic and adaptive watershed management approaches to the protection and restoration of aquatic ecosystems by encouraging pollution control strategies that are developed through collaborative partnerships within a hydrologic boundary. This paper evaluates the effectiveness of the holistic adaptive management approach through ...

  • Biosensor with total internal reflection imaging ellipsometry

    In order to monitor multiple protein reaction processes simultaneously, a biosensor based on imaging ellipsometry operated in the total internal reflection mode is proposed. It could be realised as an automatic analysis for protein interaction processes with real-time label-free method. Its principle and methodology as well as a demonstration for its applications are presented.Keywords: ...


    By Inderscience Publishers

  • Covalently-bound organic monolayers for biosensor applications

    In this paper, we present a detailed investigation on monolayer formation with thicknesses amounting 1 nm to 3 nm on silicon and silicon nitride surfaces. Thermal and photochemical methods are successfully used to form such stable and densely backed monolayers. Further, functionalisation of these surfaces with activated esters, amine groups are also presented. Static water contact angle ...


    By Inderscience Publishers

  • Cycle chemistry pH measurement

    pH measurement in high purity water has met with variable success. The high resistivity of pure water, the vulnerability to contamination, the variability of reference electrodes and additional temperature effects converge to make tins a particularly challenging measurement. Overcoming these obstacles requires a thorough understanding of the potential problems and their systematic solution. ...


    By SnowPure Water Technologies

  • Measuring corporate environmental footprint

    Nuno DaSilva, Managing Director of PE Americas, reveals the best methodologies for measuring an organization’s environmental impact. Frequently I get asked for guidance on the best methods for measuring an organization's environmental footprint. Questions tend to be about 'should measurement be based strictly on collecting emissions and energy use data from operational and facility sites?' How ...


    By thinkstep

  • Measuring diversion, recycling progress

    ONE OF the first sessions at the 23rd Annual BioCycle West Coast Conference next month in San Diego is titled “Documenting Waste Diversion.” When the State of California adopted its AB 939 recycling law in 1989, it established a 50 percent waste diversion goal by 2000. Jurisdictions failing to meet that goal would be subject to fines. A number of other states adopted diversion or recycling goals ...


    By BioCycle Magazine

  • Measuring Road Traffic Noise

    As part of an overall measurement programme to monitor road traffic noise in Århus (Denmarks second largest city), the Local Authority set up a noise measurement station on one of the major approach roads to Århus Harbour. This noise measurement station continually measures noise levels and can give a round-the-clock picture of noise level variations. Like most other districts, Århus Local ...

  • Online flow measurement

    Background The undershoot weir in Hohensaaten was built in 1913. It has three openings and regulates the discharge from the Oderbruch and from the Finow canal into the Hohensaaten-Friedrichsthaler-waterway. Moreover, it protects parts of the Oderbruch against Oder floods. The weir controls the waterlevels in the Havel-Oder-waterway and in the reach of Niederfinow- Hohensaaten. ...


    By The OTT Hydromet Group

  • New methods for measuring the wind

    Although computer models of wind flow over terrain have improved dramatically in the past few years, there is still no substitute for data recorded at the site. So you want to build a wind farm. Good for you. With the global drive towards a low carbon economy, it is surely the right way to go for many individuals, companies and, indeed, Governments around the world. As information from the ...


  • Railroad Ballast Density Measurement

    Because existing methods were unsuitable for measuring the in-situ density of railroad ballast, studies were conducted to develop a new technique. A laboratory investigation was made of the various factors affecting the measurement of density in railroad ballast, which typically is composed of open-graded and coarse-grained aggregates. An approach employing water replacement in a lined hole was ...


    By ASTM International

  • A measurement vision for the future

    Professor John Pethica is the National Physical Laboratory's (NPL) chief scientific adviser. He took up the role at the tail end of 2007 and here lays out his vision for the future of the UK’s National Measurement Institute. For thirty years I have worked across both public and private sectors, using cutting-edge science to establish new businesses and advise on public policy. This has taken me ...

  • Bed Level Measurement

    Numerous studies and papers have been devoted to the subject of thickener design and operation to achieve specified throughput and discharge densities. Mathematical models have been developed that present methods for sizing thickeners and predicting performance under varying process conditions. The compression effect of deeper beds on dewatering performance is a recognized phenomenon. This is one ...


    By WesTech Engineering, Inc.

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