@article{WuPoghossianBronderetal.2016,
  author    = {Wu, Chunsheng and Poghossian, Arshak and Bronder, Thomas and Sch{\"o}ning, Michael Josef},
  title     = {Sensing of double-stranded DNA molecules by their intrinsic molecular charge using the light-addressable potentiometric sensor},
  series = {Sensors and Actuators B: Chemical},
  journal   = {Sensors and Actuators B: Chemical},
  number    = {229},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0925-4005},
  doi       = {10.1016/j.snb.2016.02.004},
  pages     = {506 -- 512},
  year      = {2016},
  abstract  = {A multi-spot light-addressable potentiometric sensor (LAPS), which belongs to the family of semiconductor field-effect devices, was applied for label-free detection of double-stranded deoxyribonucleic acid (dsDNA) molecules by their intrinsic molecular charge. To reduce the distance between the DNA charge and sensor surface and thus, to enhance the electrostatic coupling between the dsDNA molecules and the LAPS, the negatively charged dsDNA molecules were electrostatically adsorbed onto the gate surface of the LAPS covered with a positively charged weak polyelectrolyte layer of PAH (poly(allylamine hydrochloride)). The surface potential changes in each spot of the LAPS, induced by the layer-by-layer adsorption of a PAH/dsDNA bilayer, were recorded by means of photocurrent-voltage and constant-photocurrent measurements. In addition, the surface morphology of the gate surface before and after consecutive electrostatic adsorption of PAH and dsDNA layers was studied by atomic force microscopy measurements. Moreover, fluorescence microscopy was used to verify the successful adsorption of dsDNA molecules onto the PAH-modified LAPS surface. A high sensor signal of 25 mV was registered after adsorption of 10 nM dsDNA molecules. The lower detection limit is down to 0.1 nM dsDNA. The obtained results demonstrate that the PAH-modified LAPS device provides a convenient and rapid platform for the direct label-free electrical detection of in-solution hybridized dsDNA molecules.},
  language  = {en}
}
@article{WuBronderPoghossianetal.2015,
  author    = {Wu, Chunsheng and Bronder, Thomas and Poghossian, Arshak and Werner, Frederik and Sch{\"o}ning, Michael Josef},
  title     = {Label-free detection of DNA using light-addressable potentiometric sensor modified with a positively charged polyelectrolyte layer},
  series = {Nanoscale},
  volume    = {14},
  journal   = {Nanoscale},
  number    = {7},
  publisher = {Royal Society of Chemistry (RSC)},
  address   = {Cambridge},
  doi       = {10.1039/C4NR07225A},
  pages     = {6143 -- 6150},
  year      = {2015},
  abstract  = {A multi-spot (16 spots) light-addressable potentiometric sensor (MLAPS) consisting of an Al-p-Si-SiO2 structure modified with a weak polyelectrolyte layer of PAH (poly(allylamine hydrochloride)) was applied for the label-free electrical detection of DNA (deoxyribonucleic acid) immobilization and hybridization by the intrinsic molecular charge for the first time. To achieve a preferentially flat orientation of DNA strands and thus, to reduce the distance between the DNA charge and MLAPS surface, the negatively charged probe single-stranded DNAs (ssDNA) were electrostatically adsorbed onto the positively charged PAH layer using a simple layer-by-layer (LbL) technique. In this way, more DNA charge can be positioned within the Debye length, yielding a higher sensor signal. The surface potential changes in each spot induced due to the surface modification steps (PAH adsorption, probe ssDNA immobilization, hybridization with complementary target DNA (cDNA), non-specific adsorption of mismatched ssDNA) were determined from the shifts of photocurrent-voltage curves along the voltage axis. A high sensor signal of 83 mV was registered after immobilization of probe ssDNA onto the PAH layer. The hybridization signal increases from 5 mV to 32 mV with increasing the concentration of cDNA from 0.1 nM to 5 μM. In contrast, a small signal of 5 mV was recorded in the case of non-specific adsorption of fully mismatched ssDNA (5 μM). The obtained results demonstrate the potential of the MLAPS in combination with the simple and rapid LbL immobilization technique as a promising platform for the future development of multi-spot light-addressable label-free DNA chips with direct electrical readout.},
  language  = {en}
}
@article{WuBronderPoghossianetal.2014,
  author    = {Wu, Chunsheng and Bronder, Thomas and Poghossian, Arshak and Werner, Frederik and B{\"a}cker, Matthias and Sch{\"o}ning, Michael Josef},
  title     = {Label-free electrical detection of DNA with a multi-spot LAPS: First step towards light-addressable DNA chips},
  series = {Physica status solidi A : Applications and materials science},
  volume    = {211},
  journal   = {Physica status solidi A : Applications and materials science},
  number    = {6},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1521-396X (E-Journal); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print)},
  doi       = {10.1002/pssa.201330442},
  pages     = {1423 -- 1428},
  year      = {2014},
  abstract  = {A multi-spot (4 × 4 spots) light-addressable potentiometric sensor (MLAPS) consisting of an Al-p-Si-SiO2 structure has been applied for the label-free electrical detection of DNA (deoxyribonucleic acid) immobilization and hybridization by the intrinsic molecular charge for the first time. Single-stranded probe ssDNA molecules (20 bases) were covalently immobilized onto the silanized SiO2 gate surface. The unspecific adsorption of mismatch ssDNA on the MLAPS gate surface was blocked by bovine serum albumin molecules. To reduce the screening effect and to achieve a high sensor signal, the measurements were performed in a low ionic-strength solution. The photocurrent-voltage (I-V) curves were simultaneously recorded on all 16 spots after each surface functionalization step. Large shifts of I-V curves of 25 mV were registered after the DNA immobilization and hybridization event. In contrast, a small potential shift (∼5 mV) was observed in case of mismatch ssDNA, revealing good specificity of the sensor. The obtained results demonstrate the potential of the MLAPS as promising transducer platform for the multi-spot label-free electrical detection of DNA molecules by their intrinsic molecular charge.},
  language  = {en}
}
@inproceedings{WuBronderPoghossianetal.2014,
  author    = {Wu, Chunsheng and Bronder, Thomas and Poghossian, Arshak and Sch{\"o}ning, Michael Josef},
  title     = {DNA-hybridization detection using light-addressable potentiometric sensor modified with gold layer},
  series = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  booktitle = {Sensoren und Messsysteme 2014 ; Beitr{\"a}ge der 17. GMA/ITG-Fachtagung vom 3. bis 4. Juni 2014 in N{\"u}rnberg. (ITG-Fachbericht ; 250)},
  publisher = {VDE-Verl.},
  address   = {D{\"u}sseldorf},
  organization    = {VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik},
  isbn      = {978-3-8007-3622-5},
  pages     = {1 -- 4},
  year      = {2014},
  language  = {en}
}
@article{Wrede1996,
  author    = {Wrede, Oliver},
  title     = {Mnemotechnik in graphischen Benutzeroberfl{\"a}chen},
  series = {Form <Basel> / Form-Diskurs : Zeitschrift f{\"u}r Design und Theorie. 1 (1996), H. 2},
  journal   = {Form <Basel> / Form-Diskurs : Zeitschrift f{\"u}r Design und Theorie. 1 (1996), H. 2},
  year      = {1996},
  language  = {en}
}
@article{Wrede2005,
  author    = {Wrede, Oliver},
  title     = {Wer nicht h{\"o}ren will muss sehen : ein Pl{\"a}doyer f{\"u}r eine entwurfsbezogene Bildwissenschaft},
  series = {Boxhorn. 12 (2005), H. Sehsturz},
  journal   = {Boxhorn. 12 (2005), H. Sehsturz},
  pages     = {24 -- 25},
  year      = {2005},
  language  = {de}
}
@article{Wrede2016,
  author    = {Wrede, Oliver},
  title     = {Continuity in travel information},
  series = {Information Design Journal},
  volume    = {22},
  journal   = {Information Design Journal},
  number    = {2},
  publisher = {John Benjamins},
  address   = {Amsterdam},
  issn      = {0142-5471},
  doi       = {10.1075/idj.22.2.09wre},
  pages     = {172 -- 178},
  year      = {2016},
  abstract  = {This article discusses the contrast between the information transportation companies provide to travellers and that of their brand messaging. Companies' brand messaging often portrays the service they provide as pleasant, stress free and perfect. Customers and users of the service, on the other hand, often describe their experience of the service as a negative one. This article suggests that the brand value would be greater if transportation companies paid more attention to the users' experience when designing their information systems, particularly in worst case scenarios.},
  language  = {en}
}
@book{WosnitzaHilgers2012,
  author    = {Wosnitza, Franz and Hilgers, Hans Gerd},
  title     = {Energieeffizienz und Energiemanagement : ein {\"U}berblick heutiger M{\"o}glichkeiten und Notwendigkeiten},
  publisher = {Springer Spektrum},
  address   = {Wiesbaden},
  isbn      = {978-3-8348-1941-3},
  pages     = {XVII, 548 S. : Ill., graph. Darst.},
  year      = {2012},
  language  = {en}
}
@book{WosnitzaHilgers2012,
  author    = {Wosnitza, Franz and Hilgers, Hans Gerd},
  title     = {Energieeffizienz und Energiemanagement : Ein {\"U}berblick heutiger M{\"o}glichkeiten und Notwendigkeiten},
  publisher = {Vieweg + Teubner},
  address   = {Wiesbaden},
  isbn      = {978-3-8348-8671-2},
  pages     = {Elektronische Ressource},
  year      = {2012},
  language  = {de}
}
@book{Wosnitza1976,
  author    = {Wosnitza, Franz},
  title     = {Bau eines HF-Empfangsteiles, Bild-Ton-ZF-Verst{\"a}rkers und Demodulators, sowie eines Bildtr{\"a}gertonempfangsteiles f{\"u}r Schmalbandfernsehen f{\"u}r den ATV-Fernsehumsetzer DK 0 HJ / Betreuer: Erich Vogelsang},
  year      = {1976},
  language  = {de}
}
@book{Wosnitza1980,
  author    = {Wosnitza, Franz},
  title     = {Freifeldmessungen an Violinen und geh{\"o}rgem{\"a}ße Bewertungen ihrer Frequenzen},
  year      = {1980},
  language  = {de}
}
@book{Wosnitza1986,
  author    = {Wosnitza, Franz},
  title     = {Ein Testbarkeitsanalysemaß zur Architekturbewertung programmierbarer Schaltnetze / von Franz Wosnitza},
  pages     = {116 S. : Ill., graph. Darst.},
  year      = {1986},
  language  = {de}
}
@article{Wosnitza1987,
  author    = {Wosnitza, Franz},
  title     = {Ein Testbarkeitsanalysemaß f{\"u}r den testfreundlichen Entwurf integrierter Schaltkreise auf Register-Transfer-Niveau},
  series = {ITG-Fachberichte. 98 (1987)},
  journal   = {ITG-Fachberichte. 98 (1987)},
  pages     = {291 -- 295},
  year      = {1987},
  language  = {de}
}
@book{Wosnitza1996,
  author    = {Wosnitza, Franz},
  title     = {Grundlagen elektromagnetischer Felder und Netzwerke I/2 : Analyse station{\"a}rer, linearer Str{\"o}mungsfelder und Netzwerke (Gleichstromkreis)},
  publisher = {Verl. der Augustinus-Buchh.},
  address   = {Aachen},
  isbn      = {3-86073-543-8},
  pages     = {206 S. : graph. Darst.},
  year      = {1996},
  language  = {de}
}
@book{Wosnitza2003,
  author    = {Wosnitza, Franz},
  title     = {Analyse station{\"a}rer, linearer Str{\"o}mungsfelder und Gleichstrom-Netzwerke},
  publisher = {Mainz},
  address   = {Aachen},
  isbn      = {3-86073-546-2},
  pages     = {208 S. : zahlr. graph. Darst.},
  year      = {2003},
  language  = {de}
}
@book{Wosnitza1987,
  author    = {Wosnitza, Franz},
  title     = {Werkzeuge des MIMOLA-Hardware-Entwurfssystems. / Kelle, K. ; Kr{\"u}ger, G. ; Marwedel, P. ; Nowak, L. ; Terasa, L. ; Wosnitza, F.},
  publisher = {Inst., Univ.},
  address   = {Kiel},
  pages     = {187 S.},
  year      = {1987},
  language  = {de}
}
@misc{WollnyStadtmuellerTippkoetteretal.2012,
  author    = {Wollny, S. and Stadtm{\"u}ller, R. and Tippk{\"o}tter, Nils and Oster, J. and Kampeis, P. and Ulber, Roland},
  title     = {Optimierung der selektiven Aufarbeitung von Proteinen mit Aptamer-funktionalisierten Magnetpartikeln},
  series = {Chemie Ingenieur Technik},
  volume    = {84},
  journal   = {Chemie Ingenieur Technik},
  number    = {8},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0009-286X},
  doi       = {10.1002/cite.201250031},
  pages     = {1203},
  year      = {2012},
  abstract  = {Die Herstellung pharmakologisch relevanter Proteine durch Mikroorganismen f{\"u}hrt eine mehrstufige Aufarbeitung mit sich. Durch die Verwendung von Aptameren, kurzen einzelstr{\"a}ngigen DNA- oder RNA-Oligonukleotiden immobilisiert auf funktionalisierten, wiederverwendbaren Magnetpartikeln, k{\"o}nnen mehrere dieser Abtrennungsoperationen kombiniert und damit die Prozesskosten minimiert werden. Aufgrund der definierten dreidimensionalen Struktur k{\"o}nnen Aptamere kleine organische Molek{\"u}le hochspezifisch binden. Im vorgestellten Projekt wird die Aufarbeitung von His6-GFP als Modellprotein mithilfe der mit Aptamer funktionalisierten Magnetpartikel durchgef{\"u}hrt. In bisherigen Versuchen wurde die Bindung von Aptameren auf den magnetischen Partikeln sowie die Bindung des Modellproteins GFP auf den Partikeln optimiert. Des Weiteren wurden mehrere Strategien zur Elution des GFPs von den Partikeln verfolgt, um den Proteinertrag zu maximieren und die Partikel rezyklieren zu k{\"o}nnen. Die Untersuchung unspezifischer Bindungen von Zelltr{\"u}mmern und Proteinen an die Magnetpartikel wurde mithilfe eines konfokalen Laser-Scanning-Mikroskops durchgef{\"u}hrt.},
  language  = {de}
}
@misc{WollnyAlKaidyTippkoetteretal.2014,
  author    = {Wollny, S. and Al-Kaidy, Huschyar and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {Prozessintegrierte Magnetseparation im Labormaßstab mittels High-Gradient Magnetic Separator (HGMS)},
  series = {Chemie Ingenieur Technik},
  volume    = {86},
  journal   = {Chemie Ingenieur Technik},
  number    = {9},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0009-286X},
  doi       = {10.1002/cite.201450618},
  pages     = {1507},
  year      = {2014},
  abstract  = {Die Hochgradient-Magnetseparation (HGMS) stellt eine Alternative zu konventionellen Methoden der Proteinaufarbeitung wie Filtration und Chromatographie dar und dient zudem als Prozessintensivierung. Bisherige Separatoren sind f{\"u}r Anwendungen von mehreren Litern Prozessvolumina Fermentationsmedium und Gramm Magnetpartikel ausgelegt. Bei der Entwicklung und Anwendung neuartiger Magnetpartikeloberfl{\"a}chen ist die Verf{\"u}gbarkeit großer Mengen nicht gegeben. Bisherige Filterkammern erh{\"o}hen zudem den Arbeitsaufwand und verursachen gr{\"o}ßere Partikelverluste bei Sp{\"u}lvorg{\"a}ngen oder der Reinigung aufgrund der Partikeladsorption. F{\"u}r Anwendungen im Maßstab < 500 mL wird deshalb ein Miniatur-Hochgradientfilter (miniHGF) entwickelt. Das Modell wird im 3D-Drucker Makerbot Replicator 2 gefertigt und magne-isierbare Dr{\"a}hte zur Partikelabscheidung eingesetzt. Die Vergleichbarkeit mit einem etablierten Magnetseparator wird anhand der Aufnahme von Durchbruchskurven und Bestimmung der Filtereffizienz untersucht. Die Praxistauglichkeit mit kleinen Volumina wird in wiederholten Batch-Versuchen mit auf Magnetpartikeln immobilisiertem Enzym und einem kolorimetrischen Assay gepr{\"u}ft.},
  language  = {de}
}
@article{WollertVedralGrimmetal.2004,
  author    = {Wollert, J{\"o}rg and Vedral, Andreas and Grimm, A. and Holtmann, M.},
  title     = {Bluetooth-Sicherheit : wie viel Pers{\"o}nlichkeit gebe ich preis?},
  series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler ; Sonderh. Wireless : Fachmedium f{\"u}r Entwicklungen funkbasierter Systeme},
  volume    = {Bd. 53},
  journal   = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler ; Sonderh. Wireless : Fachmedium f{\"u}r Entwicklungen funkbasierter Systeme},
  number    = {Sonderh. M{\"a}rz},
  issn      = {0013-5658},
  pages     = {30 -- 35},
  year      = {2004},
  language  = {de}
}
@article{WollertVedral2002,
  author    = {Wollert, J{\"o}rg and Vedral, Andreas},
  title     = {Einsatz von Open-Source-Software f{\"u}r Bluetooth-Evaluationsprototypen : Anwendungsempfehlungen und Einsatzbeispiele},
  series = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  volume    = {Bd. 51},
  journal   = {Elektronik : Fachmedium f{\"u}r industrielle Anwender und Entwickler},
  number    = {H. 22},
  issn      = {0013-5658},
  pages     = {70 -- 73},
  year      = {2002},
  language  = {de}
}