TY  - JOUR
A1  - Bäcker, Matthias
A1  - Raue, Markus
A1  - Schusser, Sebastian
A1  - Jeitner, C.
A1  - Breuer, L.
A1  - Wagner, P.
A1  - Poghossian, Arshak
A1  - Förster, Arnold
A1  - Mang, Thomas
A1  - Schöning, Michael Josef
T1  - Microfluidic chip with integrated microvalves based on temperature- and pH-responsive hydrogel thin films
JF  - Physica Status Solidi  (a)
N2  - Two types of microvalves based on temperature-responsive poly(N-isopropylacrylamide) (PNIPAAm) and pH-responsive poly(sodium acrylate) (PSA) hydrogel films have been developed and tested. The PNIPAAm and PSA hydrogel films were prepared by means of in situ photopolymerization directly inside the fluidic channel of a microfluidic chip fabricated by combining Si and SU-8 technologies. The swelling/shrinking properties and height changes of the PNIPAAm and PSA films inside the fluidic channel were studied at temperatures of deionized water from 14 to 36 °C and different pH values (pH 3–12) of Titrisol buffer, respectively. Additionally, in separate experiments, the lower critical solution temperature (LCST) of the PNIPAAm hydrogel was investigated by means of a differential scanning calorimetry (DSC) and a surface plasmon resonance (SPR) method. Mass-flow measurements have shown the feasibility of the prepared hydrogel films to work as an on-chip integrated temperature- or pH-responsive microvalve capable to switch the flow channel on/off.
Y1  - 2012
U6  - http://dx.doi.org/10.1002/pssa.201100763
SN  - 1862-6319
VL  - 209
IS  - 5
SP  - 839
EP  - 845
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Arida, Hassan
A1  - Mohsen, Q.
A1  - Schöning, Michael Josef
T1  - Microfabrication, characterization and analytical application of a new thin-film silver microsensor
JF  - Electrochimica Acta. 54 (2009), H. 13
Y1  - 2009
SN  - 0013-4686
SP  - 3543
EP  - 3547
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Lüth, H.
T1  - Microfabricated semiconductor structures – Advances in (bio-)chemical sensing
JF  - Coupling of biological and electronic systems : proceedings of the 2nd Caesarium, Bonn, November 1 - 3, 2000 / Karl-Heinz Hoffmann, ed.
Y1  - 2002
SN  - 3-540-43699-5
SP  - 79
EP  - 92
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
T1  - Microelectronics contacts (bio-)chemistry – Semiconductor-based sensors
JF  - Biologi Italiani. 8 (2001)
Y1  - 2001
SN  - 0392-2510
SP  - 5
EP  - 10
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Glück, O.
A1  - Schroth, P.
A1  - Schütz, S. (u.a.)
T1  - Microelectrodes, capacitors and BioFETs: Novel trends in silicon-based biochemical sensing
JF  - Biocybernetics and Biomedical Engineering. 19 (1999), H. 1
Y1  - 1999
SN  - 0208-5216
SP  - 105
EP  - 126
ER  - 
TY  - JOUR
A1  - Schmitt, G.
A1  - Werner, C.
A1  - Schöning, Michael Josef
T1  - Microelectrochemical efficiency evaluation of inhibitors for CO2 corrosion of carbon steel under high shear stress gradients
JF  - Corrosion 2002. Conference Proceedings. NACExpo, 57th Annual Conference and Exhibition, Denver, US, Apr 7-11, 2002
Y1  - 2002
N1  - Paper 02280
SP  - 1
EP  - 11
PB  - NACE International
CY  - Houston, Texas
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Schroth, P.
A1  - Hummel, Hans E.
A1  - Weißbecker, B.
A1  - Lüth, H.
A1  - Schütz, S.
T1  - Microcsaled living bioelectronic systems – Coupling beetles to silicon transducers
JF  - Chemical and biological sensors and analytical methods : proceedings of the international symposium / Sensor, Physical Electrochemistry, and Organic and Biological Electrochemistry Divisions. Ed.: M. Butler
Y1  - 2001
SN  - 1-56677-351-2
N1  - International Symposium: Chemical and Biological Sensors and Analytical Methods ; (2 : 2001.)
SP  - 165
EP  - 173
PB  - Electrochemical Society
CY  - Pennington, NJ
ER  - 
TY  - JOUR
A1  - Kurowski, A.
A1  - Schultze, J.
A1  - Lüth, H.
A1  - Schöning, Michael Josef
T1  - Micro- and nanopatterning of sensor chips by means of macroporous silicon.
JF  - Sensors and Actuators B. 83 (2002), H. 1-3
Y1  - 2002
SN  - 0925-4005
N1  - Selected Papers from TRANSDUCERS '01 EUROSENSORS XV
SP  - 123
EP  - 128
ER  - 
TY  - JOUR
A1  - Kurowski, A.
A1  - Schultze, J.W.
A1  - Lüth, H.
A1  - Schöning, Michael Josef
T1  - Micro- and nanopatterning of sensor chips by means of macroporous silicon
JF  - Transducers '01 Eurosensors XV : digest of technical papers / the 11th International Conference on Solid-State Sensors and Actuators, June 10-14, 2001, Munich, Germany. Ernst Obermeier (Ed.)
Y1  - 2001
SN  - 3-540-42150-5
N1  - Eurosensors (15, 2001, München) ; International Conference on Solid State Sensors and Actuators (11, 2001, München)
SP  - 640
EP  - 643
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - JOUR
A1  - Huck, Christina
A1  - Schiffels, Johannes
A1  - Herrera, Cony N.
A1  - Schelden, Maximilian
A1  - Selmer, Thorsten
A1  - Poghossian, Arshak
A1  - Baumann, Marcus
A1  - Wagner, Patrick
A1  - Schöning, Michael Josef
T1  - Metabolic responses of Escherichia coli upon glucose pulses captured by a capacitive field-effect sensor
JF  - Physica Status Solidi (A)
N2  - Living cells are complex biological systems transforming metabolites taken up from the surrounding medium. Monitoring the responses of such cells to certain substrate concentrations is a challenging task and offers possibilities to gain insight into the vitality of a community influenced by the growth environment. Cell-based sensors represent a promising platform for monitoring the metabolic activity and thus, the “welfare” of relevant organisms. In the present study, metabolic responses of the model bacterium Escherichia coli in suspension, layered onto a capacitive field-effect structure, were examined to pulses of glucose in the concentration range between 0.05 and 2 mM. It was found that acidification of the surrounding medium takes place immediately after glucose addition and follows Michaelis–Menten kinetic behavior as a function of the glucose concentration. In future, the presented setup can, therefore, be used to study substrate specificities on the enzymatic level and may as well be used to perform investigations of more complex metabolic responses. Conclusions and perspectives highlighting this system are discussed.
Y1  - 2013
U6  - http://dx.doi.org/10.1002/pssa.201200900
SN  - 0031-8965
VL  - 210
IS  - 5
SP  - 926
EP  - 931
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Poghossian, Arshak
A1  - Schultze, Joachim W.
T1  - Measuring seven parameters by two ISFET modules in a microcell set-up
JF  - Int. Journal of Computational Engineering Science. 4 (2003), H. 2
Y1  - 2003
SN  - 1465-8763
SP  - 257
EP  - 260
ER  - 
TY  - JOUR
A1  - Gasparyan, Ferdinand V.
A1  - Poghossian, Arshak
A1  - Vitusevich, Svetlana A.
A1  - Petrychuk, Mykhaylo V.
A1  - Sydoruk, Viktor A.
A1  - Siqueira, José R. Jr.
A1  - Oliveira, Osvaldo N. Jr.
A1  - Offenhäusser, Andreas
A1  - Schöning, Michael Josef
T1  - Low-Frequency Noise in Field-Effect Devices Functionalized With Dendrimer/Carbon-Nanotube Multilayers
JF  - IEEE Sensors Journal. 11 (2011), H. 1
Y1  - 2011
SN  - 1530-437X
SP  - 142
EP  - 149
PB  - IEEE
CY  - New York
ER  - 
TY  - JOUR
A1  - Gasparyan, F. V.
A1  - Poghossian, Arshak
A1  - Vitusevich, S. A.
A1  - Petrychuk, M. V.
A1  - Sydoruk, V. A.
A1  - Surmalyan, A. V.
A1  - Siqueira, J. R.
A1  - Oliveira, O. N.
A1  - Offenhäusser, A.
A1  - Schöning, Michael Josef
T1  - Low Frequency Noise In Electrolyte-Gate Field-Effect Devices Functionalized With Dendrimer/Carbon-Nanotube Multilayers
JF  - Noise and fluctuations : 20th International Conference on Noise and Fluctuations, ICNF 2009, Pisa, Italy, 14 - 19 June 2009 / ed. Massimo Macucci; Giovanni Basso
Y1  - 2009
SN  - 9780735406650
N1  - AIP conference proceedings ; 1129 ; International Conference on Noise and Fluctuations ; (20, 2009, Pisa)
SP  - 133
EP  - 136
PB  - American Inst. of Physics
CY  - Melville, NY
ER  - 
TY  - CHAP
A1  - Bohrn, Ulrich
A1  - Stütz, Evamaria
A1  - Fleischer, Maximilian
A1  - Schöning, Michael Josef
A1  - Wagner, Patrick
T1  - Living cell-based gas sensor system for the detection of acetone in air
Y1  - 2012
SN  - 978-3-9813484-2-2
U6  - http://dx.doi.org/10.5162/IMCS2012/3.2.3
SP  - 269
EP  - 272
ER  - 
TY  - JOUR
A1  - Ermelenko, Y.
A1  - Yoshinobu, T.
A1  - Mourzina, Y.
A1  - Furuichi, K.
A1  - Levichev, S.
A1  - Vlasov, Y.
A1  - Schöning, Michael Josef
A1  - Iwasaki, H.
T1  - Lithium sensor based on the laser scanning semiconductor transducer
JF  - Analytica Chimica Acta. 459 (2002), H. 1
Y1  - 2002
SN  - 0378-4304
SP  - 1
EP  - 9
ER  - 
TY  - JOUR
A1  - Schütz, S.
A1  - Weißbecker, G.
A1  - Schroth, P.
A1  - Schöning, Michael Josef
T1  - Linkage of inanimate structures to biological systems – smart materials in biological micro- nanosystems
JF  - Smart materials : proceedings of the 1st Caesarium, Bonn, November 17 - 19, 1999 / Karl-Heinz Hoffmann ed.
Y1  - 2001
SN  - 3-540-67957-X
SP  - 149
EP  - 157
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - CHAP
A1  - Breuer, Lars
A1  - Guthmann, Eric
A1  - Schöning, Michael Josef
A1  - Thoelen, Ronald
A1  - Wagner, Torsten
T1  - Light-Stimulated Hydrogels with Incorporated Graphene Oxide as Actuator Material for Flow Control in Microfluidic Applications
T2  - Proceedings Eurosensors 2017 Conference, Paris, France, 3–6 September 2017
Y1  - 2017
U6  - http://dx.doi.org/10.3390/proceedings1040524
SP  - 1
EP  - 4
ER  - 
TY  - CHAP
A1  - Breuer, Lars
A1  - Raue, Markus
A1  - Mang, Thomas
A1  - Schöning, Michael Josef
A1  - Thoelen, Ronald
A1  - Wagner, Torsten
T1  - Light-stimulated hydrogel actuators with incorporated graphene oxide for microfluidic applications
T2  - 12. Dresdner Sensor-Symposium 2015
Y1  - 2015
U6  - http://dx.doi.org/10.5162/12dss2015/P5.8
SP  - 206
EP  - 209
ER  - 
TY  - JOUR
A1  - Breuer, Lars
A1  - Raue, Markus
A1  - Kirschbaum, M.
A1  - Mang, Thomas
A1  - Schöning, Michael Josef
A1  - Thoelen, R.
A1  - Wagner, Torsten
T1  - Light-controllable polymeric material based on temperature-sensitive hydrogels with incorporated graphene oxide
JF  - Physica status solidi (a)
N2  - Poly(N-isopropylacrylamide) (PNIPAAm) hydrogel films with incorporated graphene oxide (GO) were developed and tested as light-stimulated actuators. GO dispersions were synthesized via Hummers method and characterized toward their optical properties and photothermal energy conversion. The hydrogels were prepared by means of photopolymerization. In addition, the influence of GO within the hydrogel network on the lower critical solution temperature (LCST) was investigated by differential scanning calorimetry (DSC). The optical absorbance and the response to illumination were determined as a function of GO concentration for thin hydrogel films. A proof of principle for the stimulation with light was performed.
Y1  - 2015
U6  - http://dx.doi.org/10.1002/pssa.201431944
SN  - 1862-6319
VL  - 212
IS  - 6
SP  - 1368
EP  - 1374
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - BOOK
A1  - Yoshinobu, Tatsuo
A1  - Schöning, Michael Josef
ED  - Yoshinobu, Tatsuo
ED  - Schöning, Michael Josef
T1  - Light-addressing and chemical imaging technologies for electrochemical sensing
Y1  - 2020
SN  - 978-3-03943-029-1
U6  - http://dx.doi.org/10.3390/books978-3-03943-029-1
N1  - This book is a printed edition of the Special Issue Light-Addressing and Chemical Imaging Technologies for Electrochemical Sensing that was published in Sensors
PB  - MDPI
CY  - Basel
ER  -