Searched for: faculty%3A%22Applied%255C%252BSciences%22
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De Kruijff, R.M. (author), Wolterbeek, H.T. (author), Denkova, A.G. (author)
This review presents an overview of the successes and challenges currently faced in alpha radionuclide therapy. Alpha particles have an advantage in killing tumour cells as compared to beta or gamma radiation due to their short penetration depth and high linear energy transfer (LET). Touching briefly on the clinical successes of radionuclides...
journal article 2015
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Sevcenco, A.M. (author), Paravidino, M. (author), Vrouwenvelder, J.S. (author), Wolterbeek, H.T. (author), Van Loosdrecht, M.C.M. (author), Hagen, W.R. (author)
Oxo-anion binding properties of the thermostable enzyme ferritin from Pyrococcus furiosus were characterized with radiography. Radioisotopes 32P and 76As present as oxoanions were used to measure the extent and the rate of their absorption by the ferritin. Thermostable ferritin proved to be an excellent system for rapid phosphate and arsenate...
journal article 2015
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Bode, P. (author), Denkova, A.G. (author), Steinebach, O.M. (author), Terpstra, B.E. (author), Wolterbeek, H.T. (author)
A column material and a method for adsorbing Mo-99 in a 99Mo/ 99m Tc generator Abstract The invention relates to a column material for adsorbing Mo-99 in a 99 Mo/ 99m Tc generator, said column material (4) comprising a mesoporous MSU- X Al2O3 and/or TUD1-Al material. Preferably, a pore size of the mesoporous material is in the range of 1.5 - 50...
patent 2013
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Bode, P. (author), Wolterbeek, H.T. (author), De Vries, D.J. (author), De Bruin, M. (author)
The invention is in the field of a radionuclide generator. A radionuclide is an atom with an unstable nucleus, which is a nucleus characterized by excess energy available to be imparted either to a newly created radiation particle within the nucleus or to an atomic electron. Radionuclide generators contain a parent isotope that decays to produce...
patent 2013
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Sen, K. (author), Breeman, W.A.P. (author), Wolterbeek, H.Th. (author)
journal article 2012
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Canha, N. (author), Almeida, M. (author), Do Carmo Freitas, M. (author), Almeida, S.M. (author), Wolterbeek, H.T. (author)
In this work, 14 primary schools of Lisbon city, Portugal, followed a questionnaire of the ISAAC - International Study of Asthma and Allergies in Childhood Program, in 2009/2010. The questionnaire contained questions to identify children with respiratory diseases (wheeze, asthma and rhinitis). Total particulate matter (TPM) was passively...
journal article 2011
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Bult, W. (author), De Leeuw, H. (author), Steinebach, O.M. (author), Van der Bom, M.J. (author), Wolterbeek, H.T. (author), Heeren, R.M.A. (author), Bakker, C.J.G. (author), Van het Schip, A.D. (author), Hennink, W.E. (author), Nijsen, F.W. (author)
Purpose The clinical application of holmium acetylacetonate microspheres (HoAcAcMS) for the intratumoral radionuclide treatment of solid malignancies requires a thorough understanding of their stability. Therefore, an in vitro and an in vivo stability study with HoAcAcMS was conducted. Methods HoAcAcMS, before and after neutron irradiation, were...
journal article 2011
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Vieira, B.J. (author), Freitas, M.C. (author), Wolterbeek, H.T. (author)
journal article 2011
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Canha, N. (author), Almeida-Silva, M. (author), Freitas, M.C. (author), Almeida, S.M. (author), Wolterbeek, H.T. (author)
journal article 2011
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Canha, N. (author), Freitas, M.C. (author), Almeida-Silva, M. (author), Almeida, S.M. (author), Dung, H.M. (author), Dionisio, I. (author), Cardoso, J. (author), Pio, C.A. (author), Caseiro, A. (author), Verburg, T.G. (author), Wolterbeek, H.T. (author)
journal article 2011
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Brasser, H.J. (author), Van der Strate, H.J. (author), Gieskes, W.W.C. (author), Krijger, G.C. (author), Vrieling, E.G. (author), Wolterbeek, H.T. (author)
During valve formation of the siliceous frustules of diatoms, bulk uptake of silicic acid and its subsequent transport through the cell is required before it can be deposited in the silica deposition vesicle (SDV). It has been assumed that transport takes place via silicon transporters (SITs), but if that were the case a control mechanism would...
journal article 2010
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Sevcenco, A.M. (author), Bevers, L.E. (author), Pinkse, M.W.H. (author), Krijger, G.C. (author), Wolterbeek, H.T. (author), Verhaert, P.D.E.M. (author), Hagen, W.R. (author), Hagedoorn, P.L. (author)
The hyperthermophilic archaeon Pyrococcus furiosus expresses five aldehyde oxidoreductase (AOR) enzymes, all containing a tungsto-bispterin cofactor. The growth of this organism is fully dependent on the presence of tungsten in the growth medium. Previous studies have suggested that molybdenum is not incorporated in the active site of these...
journal article 2010
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Wolterbeek, B. (author), Sarmento, S. (author), Verburg, T. (author)
The present paper focuses on biomonitoring of elemental atmospheric pollution, which is reviewed in terms of larger-scaled biomonitoring surveys in an epidemiological context. Based on the literature information, today’s availability of solar-powered small air filter samplers and fibrous ion exchange materials is regarded as adequate or an even...
journal article 2010
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Brasser, H.J. (author), Gürbo?a, G. (author), Kroon, J.J. (author), Kolar, Z.I. (author), Wolterbeek, H.T. (author), Volkers, K.J. (author), Krijger, G.C. (author)
No-carrier added 31Si was produced by 31P(n,p)31Si in the nuclear reactor of the Delft University of Technology. Several methods were investigated to remove the side product 32P, and the chemical form of 31Si was investigated. All methods except one gave good results. Anion exchange with Dowex resin gave the best results in activity...
journal article 2010
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Wolterbeek, H.T. (author), Bode, P. (author)
Abstract of WO 2009148306 (A1) The present invention relates to a process for the production of no-carrier added 99Mo by neutron activation of 98Mo thereby reaching specific radioactivity which allow the use of such produced 99Mo as an option for the 99Mo produced by the fission of 235U. This has been achieved by taking advantage of the recoil...
patent 2009
document
Sevcenco, A.M. (author), Pinkse, M. (author), Bol, E. (author), Krijgen, G. (author), Wolterbeek, H. (author), Verhaert, P.D.E.M. (author), Hagedoorn, P.L. (author), Hagen, W.R. (author)
The tungsten metallome of the hyperthermophilic archaeon Pyrococcus furiosus has been investigated using electroanalytical metal analysis and native–native 2D-PAGE with the radioactive tungsten isotope W-187 (t1/2 = 23.9 h). P. furiosus cells have an intracellular tungsten concentration of 29 mM, of which ca. 30% appears to be free tungsten,...
journal article 2009
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Marques, A.P. (author), Freitas, M.C. (author), Wolterbeek, H.Th. (author), Verburg, T. (author)
Parmelia sulcata transplants were used in three different exposure systems, focused on three different influxes: free influx, horizontal influx and vertical influx. The total element deposition and the precipitation volumes were found to be positively correlated for Fe and Ni only. The element contents in lichen transplants and in total element...
journal article 2009
document
Marques, A.P. (author), Freitas, M.C. (author), Wolterbeek, H.Th. (author), Verburg, T. (author)
Parmelia sulcata transplants were positioned in three different exposure systems allowing three different influxes: free influx (Fi), horizontal influx (Hi) and vertical influx (Vi). Results suggest the absence of any wind-directional effects on element accumulation within Fi and Hi systems, but underline that differences in response may be...
journal article 2009
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Godinho, R.M. (author), Wolterbeek, H.T. (author), Pinheiro, M.T. (author), Alves, L.C. (author), Verburg, T.G. (author), Freitas, M.C. (author)
The elemental microdistributions of peripheral and central parts of the lichen Flavoparmelia caperata exposed to industrial pollution were analysed, in order to better understand the elements distribution patterns in relation to the lichen constitution, thereby increasing our knowledge on uptake and release mechanisms. Nuclear microscopy...
journal article 2009
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Farinha, M.M. (author), Verburg, T.G. (author), Freitas, M.C. (author), Wolterbeek, H.Th. (author)
Gent air samplers were used for air particulate matter sampling in Sado estuary area, separating fine and coarse fractions. Three sampling sites were chosen (Palmela, Faralhão and Tróia), inside a 15 km × 25 km area at Setúba region, 50 km south of Lisbon, Portugal. Transplants of Parmelia sulcata Taylor were suspended in nylon bags within the...
journal article 2009
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