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The impact of saliva collection methods on measured salivary biomarker levels

Hanan al Habobe (Onderzoeker); Liesbeth Haverkort (Onderzoeker); Kamran Nazmi (Onderzoeker); Annina van Splunter (Onderzoeker); Raymond Pieters (Lector); Floris Bikker (Onderzoeker)

Saliva diagnostics have become increasingly popular due to their non-invasive nature and patient-friendly collection process. Various collection methods are available, yet these are not always well standardized for either quantitative or qualitative analysis. In line, the objective of this study was …

2024GezondheidArtikel

Determination of monomer ratios in commercial polyhydroxyalkanoates using NMR and GC-MS

Keller, Erik (Biorefinery); Heeres, André (Biobased Chemistry & Refinery); Hoekstra, Henk

Plastic is one of the biggest contributors to pollution of the planet. Due to the low recyclability of oil-based plastics, most plastic is being disposed into the environment. According to plastic oceans, 10 million tons of plastic are dumped into oceans annually. Currently, researchers are developing …

2022-05-11AlgemeenConferentiebijdrage

Kinetics of Physiological Responses as a Measure of Intensity and Hydration Status During Experimental Physical Stress in Human Volunteers

Shirley Kartaram (Lid Lectoraat); Klaske van Norren; Eric Schoen; Marc Teunis (Associate Lector); Marco Mensink; Martie Verschuren; Laura M'Rabet (Onderzoeker); Isolde Besseling-van der Vaart; Karin Mohrmann; Harriët Wittink (Lector); Johan Garssen; Renger Witkamp; Raymond Pieters (Lector)

Introduction: Strenuous physical stress induces a range of physiological responses, the extent depending, among others, on the nature and severity of the exercise, a person’s training level and overall physical resilience. This principle can also be used in an experimental set-up by measuring time-dependent …

2020-09-04GezondheidArtikel

Tuning the optical and electrochemical properties of S- and N-containing porous polymers via rapid and reversible acid-base response

Klára Škodáková (Student); Yaroslav Kochergin (Begeleider); Michael Bojdys (Begeleider); Laurens Veraart (Begeleider)

Materials with semiconducting properties are present in every microelectronic device and form the backbone of our information society. Commonly used inorganic semiconductors are poorly modular and their production is expensive and energetically demanding. Moreover, the use of metals and critical raw …

2018-07-05ICT & Media; …Bachelor

Groundwater in the new intertidal area Perkpolder

J.J.E. Schouwenaars (Student); Jenny van der Welle (Begeleider); C.J. Pesch (Begeleider); T. Bouma (Begeleider)

Intertidal areas in the Netherlands suffer from divers pressures in the delta. The Western Scheldt has an open connection to the sea. This system is in use for the Port of Antwerp, for which dredging is required. Therefore, Rijkswaterstaat has to compensate natural areas, among which intertidal areas. Area …

2016-06-21Techniek; …Bachelor

Competentiegerichtheid en scheikunde leren: over metacognitieve opvattingen, leerresultaten en leeractiviteiten

Dr. Rutger A.W. van de Sande (Lector)

Recent and ongoing curriculum innovations in Dutch secondary chemistry education have led to questions about which concepts should be central in the programme and which contexts should be used to embed these concepts into. Another important question is in the discussions about these innovations is: how …

2007AlgemeenProefschrift

Cyclohexane-based low molecular weight hydrogelators

Friggeri, Arianna; van der Pol, Cornelia; van Bommel, Kjeld J C; Heeres, André (Biobased Ingredients And Materials); Stuart, Marc C A; Feringa, Ben L; van Esch, Jan

Seven new 1,3,5-cyclohexyltricarboxamide-phenylalanine derivatives were synthesized in order to investigate the effect of the amino acid chirality on the gelating properties of these small molecules in water. Gelation tests have shown that enantiomerically pure homochiral 1,3,5-cyclohexyltricarboxamide-L-phenylalanine …

2005-09-05AlgemeenArtikel

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