TY  - JOUR
A1  - Werner, Frederik
A1  - Wagner, Torsten
A1  - Yoshinobu, Tatsuo
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Frequency behaviour of light-addressable potentiometric sensors
JF  - Physica Status Solidi (A)
N2  - Light-addressable potentiometric sensors (LAPS) are semiconductor-based potentiometric sensors, with the advantage to detect the concentration of a chemical species in a liquid solution above the sensor surface in a spatially resolved manner. The addressing is achieved by a modulated and focused light source illuminating the semiconductor and generating a concentration-depending photocurrent. This work introduces a LAPS set-up that is able to monitor the electrical impedance in addition to the photocurrent. The impedance spectra of a LAPS structure, with and without illumination, as well as the frequency behaviour of the LAPS measurement are investigated. The measurements are supported by electrical equivalent circuits to explain the impedance and the LAPS-frequency behaviour. The work investigates the influence of different parameters on the frequency behaviour of the LAPS. Furthermore, the phase shift of the photocurrent, the influence of the surface potential as well as the changes of the sensor impedance will be discussed.
Y1  - 2013
U6  - https://doi.org/10.1002/pssa.201200929
SN  - 1521-396X ; 0031-8965
VL  - 210
IS  - 5
SP  - 884
EP  - 891
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Wert, Stefan
A1  - Iken, Heiko
A1  - Schöning, Michael Josef
A1  - Matysik, Frank-Michael
T1  - Development of a temperature‐pulse enhanced electrochemical glucose biosensor and characterization of its stability via scanning electrochemical microscopy
JF  - Electroanalysis
N2  - Glucose oxidase (GOx) is an enzyme frequently used in glucose biosensors. As increased temperatures can enhance the performance of electrochemical sensors, we investigated the impact of temperature pulses on GOx that was drop-coated on flattened Pt microwires. The wires were heated by an alternating current. The sensitivity towards glucose and the temperature stability of GOx was investigated by amperometry. An up to 22-fold increase of sensitivity was observed. Spatially resolved enzyme activity changes were investigated via scanning electrochemical microscopy. The application of short (<100 ms) heat pulses was associated with less thermal inactivation of the immobilized GOx than long-term heating.
Y1  - 2021
U6  - https://doi.org/10.1002/elan.202100089
SN  - 1521-4109
IS  - Early View
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Weßling, Matthias
T1  - Der Einsatz fertiger Videofilme in der Personalentwicklung
JF  - Personal – Zeitschrift für Human Resource Management. 50 (1998), H. 3
Y1  - 1998
SN  - 0031-5605
SP  - 128
EP  - 130
ER  - 
TY  - JOUR
A1  - Weßling, Matthias
T1  - Coaching - Literaturreport deutschsprachiger Monographien
JF  - Personal – Zeitschrift für Human Resource Management. 49 (1997), H. 7
Y1  - 1997
SN  - 0031-5605
SP  - 377
EP  - 378
ER  - 
TY  - JOUR
A1  - Weßling, Matthias
T1  - Angewandte Psychologie für (Nachwuchs-) Manager: Die Förderung von Eigenverantwortung und sozialer Handlungskompetenz durch Verhaltenstrainings
JF  - Psychologie an Fachhochschulen / Günther, Ullrich [Hrsg.]
Y1  - 1999
SN  - 3-934252-29-X
SP  - 72
EP  - 92
PB  - Pabst
CY  - Lengerich [u.a.]
ER  - 
TY  - JOUR
A1  - Weßling, Matthias
T1  - Existenzgründung - Intensivtraining macht fit
JF  - DUZ : das unabhängige Hochschulmagazin. 54 (1998), H. 5
Y1  - 1998
SN  - 0936-4501
SP  - 14
EP  - 15
ER  - 
TY  - JOUR
A1  - Weßling, Matthias
T1  - Existenzgründung - ein didaktisch innovatives Fachhochschulseminar
JF  - Die neue Hochschule : Nachrichten, Meinungen, Berichte / Hrsg.: Hochschullehrerbund - Bundesvereinigung - e.V. (hlb). 39 (1998), H. 2
Y1  - 1998
SN  - 0340-448x
SP  - 7
EP  - 9
ER  - 
TY  - JOUR
A1  - Weßling, Matthias
T1  - Existenzgründung - Wege in die Selbständigkeit: Erfahrungsbericht eines neuen Seminars
JF  - Fachblatt / der Rektor der Fachhochschule Aachen (1997)
Y1  - 1997
SN  - 1430-7707
SP  - 6
EP  - 7
ER  - 
TY  - JOUR
A1  - Weßling, Matthias
T1  - Unternehmenskultur
JF  - Ergebnisse empirischer betriebswirtschaftlicher Forschung : zu einer Realtheorie der Unternehmung ; Festschrift für Eberhard Witte / Jürgen Hauschildt ... (Hrsg.)
Y1  - 1993
SN  - 3-7910-0678-9
SP  - 115
EP  - 134
PB  - Schäffer-Poeschel
CY  - Stuttgart
ER  - 
TY  - JOUR
A1  - Weßling, Matthias
T1  - Como lidar com culturas estrangeiras: um treinamento inovador ao base da metodologia de “experiential learning” através Kolb & Fry / Wessling, Matthias
JF  - Revista Nic / Universidade Estadual de Londrina. 1 (2009), H. 2
Y1  - 2009
SN  - 1984-2325
ER  -