Searched for: author:"de Puit, M."
(1 - 10 of 10)
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de Ronde, Anouk (author), van Aken, Marja (author), de Puit, M. (author), de Poot, Christianne (author)
In this paper, we describe a promising method to evaluate the location of fingermarks on two-dimensional objects, which provides valuable information for the evaluation of fingermarks at activity level. For this purpose, an experiment with pillowcases was conducted at the Dutch music festival Lowlands, to test whether the activity ‘smothering...
journal article 2019
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Poltorak, L. (author), Sudholter, Ernst J. R. (author), de Puit, M. (author)
In this review, we describe the importance and possible electrochemical screening methods for the illicit drug – cocaine. It covers the detection at bare and modified solid electrodes, soft electrified junctions and nanopore sensing. Emphasis is given on interfacial modification techniques and electroanalytical parameters for cocaine...
review 2019
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Poltorak, L. (author), Oonk, S. (author), Sudholter, Ernst J. R. (author), de Puit, M. (author)
The behaviour of acid phosphatase at an electrified liquid–liquid interface was studied in this work. It was found that only the protonated form of the protein can undergo interfacial adsorption which is affected by the pH of the aqueous phase. With ion transfer voltammetry we could detect acid phosphatase in concentrations as low as 0.1 μM....
journal article 2018
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Ismail, Mahado (author), Stevenson, Derek (author), Costa, Catia (author), Webb, Roger (author), de Puit, M. (author), Bailey, Melanie J. (author)
BACKGROUND: Recent publications have explored the possibility of using fingerprints to confirm drug use, but none has yet dealt with environmental contamination from fingertips. Here we explored the possibility of establishing an environmental cutoff for drug testing from a single fingerprint. METHODS: Fingerprint samples (n 100) were...
journal article 2018
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Poltorak, L. (author), Hoitink, Marnix (author), Sudholter, Ernst J. R. (author), de Puit, M. (author)
A straightforward, direct, and selective method is presented for electrochemical cocaine identification in street samples. The sensing mechanism is based on a simple ion transfer reaction across the polarized liquid-liquid interface. The interfacial behavior of a number of cutting agents is also reported. Interfacial miniaturization has led...
journal article 2018
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van Helmond, W. (author), O'Brien, V. (author), van Esch, J.H. (author), Oldenhof, S. (author), de Puit, M. (author)
The amino acid profile obtained from a fingerprint may provide valuable information on its donor. For forensic scientists, recovering evidence relating to the amino acid profile of a suspect can potentially be valuable for identification and exclusion purposes. Herein we detail the use of cross-linkable solutions of dextran-methacrylate to...
journal article 2018
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de Puit, M. (author)
Lanthanide-based (Eu and Tb) metal organic frameworks (MOFs) synthesized in this work are highly fluorescent crystalline structures that form through a self-assembly process in an aqueous environment. Various bio-organic molecules, including proteins and amino acids, can act as inducing agents for this process. The fact that these components...
journal article 2018
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Oonk, S. (author), Pabst, M. (author), de Smet, L.C.P.M. (author), de Puit, M. (author)
Fingermarks are trace evidence of great forensic importance, and their omnipresence makes them pivotal in crime investigation. Police and law enforcement authorities have exploited fingermarks primarily for personal identification, but crucial knowledge on when fingermarks were deposited is often lacking, thereby hindering crime...
journal article 2018
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Van Helmond, Ward (author), Kuijpers, Chris Jan (author), Van Diejen, Elise (author), Spiering, Jincey (author), Maagdelijn, Brent (author), de Puit, M. (author)
Fingermark evidence is extensively used in criminal investigations. Hence, there have been many investigations into the chemical compounds present in fingerprint deposits. In this technical note we describe the analysis of non-derivatised amino acid profiles obtained from fingerprints. We used UPLC with an amide stationary phase and...
journal article 2017
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Bailey, Melanie J. (author), Randall, Elizabeth C. (author), Costa, Catia (author), Salter, Tara L. (author), Race, Alan M. (author), de Puit, M. (author), Koeberg, Mattijs (author), Baumert, Mark (author), Bunch, Josephine (author)
Liquid Extraction Surface Analysis (LESA) is a new, high throughput tool for ambient mass spectrometry. A solvent droplet is deposited from a pipette tip onto a surface and maintains contact with both the surface and the pipette tip for a few seconds before being re-aspirated. The technique is particularly suited to the analysis of trace...
journal article 2016
Searched for: author:"de Puit, M."
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