Searched for: subject%3A%22Biosensor%22
(1 - 13 of 13)
document
van Gulik, R.J.J. (author), de Boer, B.M. (author), Harmsma, P.J. (author)
In this paper, we compare ring resonator and three-port Mach-Zehnder Interferometer (MZI) devices fabricated on silicon-on-insulator for the purpose of refractive index sensing. Their respective sensitivities and limits of detection (LOD) were determined with NaCl solutions. A sensitivity of 113.07 nm per refractive index unit (RIU) and LOD of 2...
article 2017
document
van Lier, H.G. (author), Oberhagemann, M. (author), Stroes, J.D. (author), Enewoldsen, N.M. (author), Pieterse, M.E. (author), Schraagen, J.M.C. (author), Postel, M.G. (author), Vollenbroek-Hutten, M.M.R. (author), de Haan, H.A. (author), Noordzij, M.L. (author)
The current study was a pilot for an alcohol craving monitoring study with a biosensor (E4 wristband) and ecological momentary assessment (EMA) smartphone app. The E4 wristband was evaluated on compliance rates, usability, comfort and stigmatization. Two EMA methodologies (signal- and interval-contingent design) were compared on data variability...
conference paper 2017
document
Stein, N.E. (author), Hamelers, H.V.M. (author), van Straten, G. (author), Keesman, K.J. (author)
Polarization curves are of paramount importance for the detection of toxic components in microbial fuel cell (MFC) based biosensors. In this study, polarization curves were made under non-toxic conditions and under toxic conditions after the addition of various concentrations of nickel, bentazon, sodiumdodecyl sulfate and potassium ferricyanide....
article 2012
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Ivan, M.G. (author), Wiegersma, S. (author), Sweelssen, J. (author), Saalmink, M. (author), Boersma, A. (author)
This paper reports on manufacturing and characterization of an all-solid-state potentiometric sensor aimed at monitoring pH in dialysate or blood plasma for patients who undergo dialysis. The sensing polymer-based membrane, coated on top of the Au working electrodes, contains a polymer matrix - poly(vinyl chloride), octadecyl isonicotinate as...
conference paper 2011
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Peter, M. (author), Schüler, T. (author), Furthner, F. (author), Rensing, P.A. (author), van Heck, G.T. (author), Schoo, H.F.M. (author), Möllier, R. (author), Fritzsche, W. (author), van Breemen, A.J.J.M. (author), Meinders, E.R. (author), TNO Industrie en Techniek (author)
Miniaturization of biosensors is envisaged by the development of biochips consisting of parallel microarray patterns of binding sites on rigid substrates, such as glass or silicon. Thin plastic substrates are promising flexible alternatives because of the possibility for large-area roll-to-roll manufacturing of disposable chips at lower costs....
article 2009
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TNO Industrie en Techniek (author), Ivan, M.G. (author), Vaney, J.B. (author), Verhaart, D. (author), Meinders, E.R. (author)
A computer-controlled laser beam recorder with a wavelength of 405 nm has been employed for patterning the deposited resist with feature sizes varying from a few hundreds of nanometers to tens of micrometers. Four inch silicon templates for hot embossing source/ drain electrodes and metallic circuit for a disposable biosensor were obtained. SEM...
conference paper 2009
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Angelova, N. (author), Kong, H.-W. (author), van de Heijden, R. (author), Yang, S.-Y. (author), Choi, Y.H. (author), Kim, H.K. (author), Wang, M. (author), Hankemeier, T. (author), van der Greef, J. (author), Xu, G. (author), Verpoorte, R. (author), TNO Kwaliteit van Leven (author)
This review summarises the most recent developments in ginseng analysis, in particular the novel approaches in sample pre-treatment and the use of high-performance liquid-chromatography-mass spectrometry. The review also presents novel data on analysing ginseng extracts by nuclear magnetic resonance spectroscopy and high-resolution mass...
article 2008
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TNO Defensie en Veiligheid (author), van Wuijckhuijse, A.L. (author), Stowers, M.A. (author), Kleefsman, W.A. (author), van Baar, B.L.M. (author), Kients, C.E. (author), Marijnissen, J.C.M. (author)
A new aerosol time-of-flight mass spectrometer (ATOFMS) was developed for the near real-time analysis of single bioaerosol particles. The system combines ATOFMS with laser-induced fluorescence selection and matrix-assisted laser desorption/ionization (MALDI) mass spectrometry. The influences of laser power and sample preparation on the quality...
article 2005
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TNO Voeding Centraal Instituut voor Voedingsonderzoek TNO (author), Werlen, C. (author), Jaspers, M.C.M. (author), van der Meer, J.R. (author)
Genetically constructed microbial biosensors for measuring organic pollutants are mostly applied in aqueous samples. Unfortunately, the detection limit of most biosensors is insufficient to detect pollutants at low but environmentally relevant concentrations. However, organic pollutants with low levels of water solubility often have significant...
article 2004
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van der Gaag, B. (author), Spath, S. (author), Dietrich, H. (author), Stigter, E. (author), Boonzaaijer, G. (author), van Osenbruggen, T. (author), Koopal, K. (author)
An immunochemical biosensor assay for the detection of multiple mycotoxins in a sample is described.The inhibition assay is designed to measure four different mycotoxins in a single measurement, following extraction, sample clean-up and incubation with an appropriate cocktail of anti-mycotoxin antibodies.The different mycotoxins could be...
article 2003
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Wolken, W.A.M. (author), Tramper, J. (author), van der Werf, M.J. (author), Centraal Instituut voor Voedingsonderzoek TNO TNO Voeding (author)
Many organisms have the ability to form spores, a remarkable phase in their life cycles. Compared with vegetative cells, spores have several advantages (e.g. resistance to toxic compounds, temperature, desiccation and radiation) making them well suited to various applications. The applications of spores that first spring to mind are bio-warfare...
article 2003
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Elliott, C.T. (author), Baxter, G.A. (author), Hewitt, S.A. (author), Arts, C.J.M. (author), van Baak, M. (author), Hellenäs, K.-E. (author), Johannson, A. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
The drug salbutamol (SBL) is a β-agonist that may be used illegally as an animal growth promoter. SBL is also a good example of a drug which is excreted in the form of glucuronides and sulfates. Such metabolites cause complexities in analysing for the presence of drug residues. In the majority of cases a process of deconjugation and sample clean...
article 1998
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Koopal, C.G.J. (author), Bos, A.A.C.M. (author), Nolte, R.J.M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)
A biosensor based on a conducting screen-printing ink for the direct amperometric measurement of glucose is described. Carbon electrode prints, containing the work, reference and auxiliary electrodes, are used as the substrate for the sensor. The active parts of the carbon ink are the redox enzyme glucose oxidase and the conducting polymer poly...
article 1994
Searched for: subject%3A%22Biosensor%22
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