Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

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    We will mail you new results for this query: keywords==Nanocomposite
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Gold nanoparticles embedded in a polymer as a 3D-printable dichroic nanocomposite material
Kool, Lars ; Bunschoten, Anton ; Velders, Aldrik H. ; Saggiomo, Vittorio - \ 2019
Beilstein Journal of Nanotechnology 10 (2019)1. - ISSN 2190-4286 - p. 442 - 447.
3D printing - Dichroism - Gold nanoparticles - Nanocomposite

Background: Nanotechnology, even if unknowingly, has been used for millennia. The occurrence of shiny colors in pottery and glass made hundreds and thousand of years ago is due to the presence of nanoparticles in the fabrication of such ornaments. In the last decade, 3D printing has revolutionized fabrication and manufacturing processes, making it easier to produce, in a simple and fast way, 3D objects. Results: In this paper we show how to fabricate a 3D-printable nanocomposite composed of dichroic gold nanoparticles and a 3D-printable polymer. The minute amount of gold nanoparticles used for obtaining the dichroic effect does not influence the mechanical properties of the polymer nor its printability. Thus, the nanocomposite can be easily 3D-printed using a standard 3D printer and shows a purple color in transmission and a brownish color in reflection. Conclusion: This methodology can be used not only by artists, but also for studying the optical properties of nanoparticles or, for example, for the 3D fabrication of optical filters.

Preparation and gas sensing properties of nanocomposite polymers on micro-Interdigitated electrodes for detection of volatile organic compounds at room temperature
Nguyen, Quyen ; Kuijk, Anke ; Pujari, Sidharam P. ; Bent, Franc van de; Baggerman, Jacob ; Duy Tong, Hien ; Zuilhof, Han ; Rijn, Cees J.M. van - \ 2017
Sensors and Actuators B: Chemical 252 (2017). - ISSN 0925-4005 - p. 1098 - 1104.
Acetone - Chemocapacitor - Gas sensor - Micro interdigitated electrodes - Nanocomposite - Poly (4-vinyl phenol) - VOCs

A room-temperature chemocapacitive gas sensor based on polymeric nanocomposites (NCs) consisting of amine-terminated silicon nanoparticles (Si NPs-NH2) and poly (4-vinylphenol) was fabricated on a micro-gap interdigitated electrode (M-IDE), and used for the detection of acetone. Several polymers were explored to capture acetone, of which poly (4-vinylphenol) showed best results. The response of the sensor was significantly improved by the addition of silicon nanoparticles to the polymer layer. The response characteristics of the NC film towards volatile organic compounds (VOCs) were determined and compared with the pristine polymeric layer in this study. It was shown that the polymeric NC layer can detect acetone at room temperature within one minute. The sensing response towards acetone at room temperature proved that the turn–on and −off exposure to this analyte was reversible with good reproducibility (5% decay) after multiple cycles of gas exposure. The proof-of-concept results are promising for the development of novel gas detectors that are applicable in many fields such as industrial and laboratorial security.

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