@inproceedings{SpannhakeSchulzHelwigetal.2006,
  author    = {Spannhake, Jan and Schulz, Olaf and Helwig, Andreas and Krenkow, Angelika and M{\"u}ller, Gerhard and Doll, Theodor},
  title     = {High-temperature MEMS heater platforms: long-term performance of metal and semiconductor heater materials},
  url       = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1513},
  year      = {2006},
  abstract  = {Micromachined thermal heater platforms offer low electrical power consumption and high modulation speed, i.e. properties which are advantageous for realizing nondispersive infrared (NDIR) gas- and liquid monitoring systems. In this paper, we report on investigations on silicon-on-insulator (SOI) based infrared (IR) emitter devices heated by employing different kinds of metallic and semiconductor heater materials. Our results clearly reveal the superior high-temperature performance of semiconductor over metallic heater materials. Long-term stable emitter operation in the vicinity of 1300 K could be attained using heavily antimony-doped tin dioxide (SnO2:Sb) heater elements.},
  subject      = {Biosensor},
  language  = {en}
}
@article{SpelthahnKirsanovLeginetal.2012,
  author    = {Spelthahn, Heiko and Kirsanov, Dmitry and Legin, Andrey and Osterrath, Thomas and Schubert, J{\"u}rgen and Zander, Willi and Sch{\"o}ning, Michael Josef},
  title     = {Development of a thin-film sensor array for analytical monitoring of heavy metals in aqueous solutions},
  series = {Physica Status Solidi (a)},
  volume    = {209},
  journal   = {Physica Status Solidi (a)},
  number    = {5},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  isbn      = {1862-6319},
  doi       = {10.1002/pssa.201100733},
  pages     = {885 -- 891},
  year      = {2012},
  abstract  = {In industrial processes there is a variety of heavy metals (e.g., copper, zinc, cadmium, and lead) in use for wires, coatings, paints, alloys, batteries, etc. Since the application of these transition metals for industry is inevitable, it is a vital task to develop proper analytical techniques for their monitoring at low activity levels, especially because most of these elements are acutely toxic for biological organisms. The determination of ions in solution by means of a simple and inexpensive sensor array is, therefore, a promising task. In this work, a sensor array with heavy metal-sensitive chalcogenide glass membranes for the simultaneous detection of the four ions Ag⁺, Cu2⁺, Cd2⁺, and Pb2⁺ in solution is realized. The results of the physical characterization by means of microscopy, profilometry, Rutherford backscattering spectroscopy (RBS), and scanning electron microscopy (SEM) as well as the electrochemical characterization by means of potentiometric measurements are presented. Additionally, the possibility to expand the sensor array by polymeric sensor membranes is discussed.},
  language  = {en}
}
@article{SpelthahnPoghossianSchoening2009,
  author    = {Spelthahn, Heiko and Poghossian, Arshak and Sch{\"o}ning, Michael Josef},
  title     = {Self-aligned nanogaps and nanochannels via conventional photolithography and pattern-size reduction technique},
  series = {Electrochimica Acta. 54 (2009), H. 25 Sp. Iss. SI},
  journal   = {Electrochimica Acta. 54 (2009), H. 25 Sp. Iss. SI},
  isbn      = {0013-4686},
  pages     = {6010 -- 6014},
  year      = {2009},
  language  = {en}
}
@article{SpelthahnSchaffrathCoppeetal.2010,
  author    = {Spelthahn, Heiko and Schaffrath, Sophie and Coppe, Thomas and Rufi, Frederic and Sch{\"o}ning, Michael Josef},
  title     = {Development of an electrolyte-insulator-semiconductor (EIS) based capacitive heavy metal sensor for the detection of Pb2+ und Cd2+ ions},
  series = {Physica status solidi (a) : applications and material science. 207 (2010), H. 4},
  journal   = {Physica status solidi (a) : applications and material science. 207 (2010), H. 4},
  isbn      = {1862-6300},
  pages     = {930 -- 934},
  year      = {2010},
  language  = {en}
}
@article{SpelthahnSchubertSchoening2012,
  author    = {Spelthahn, Heiko and Schubert, J{\"u}rgen and Sch{\"o}ning, Michael Josef},
  title     = {D{\"u}nnschichtsensoren f{\"u}r die Schwermetallanalytik},
  series = {GIT : Labor-Fachzeitschrift},
  volume    = {56},
  journal   = {GIT : Labor-Fachzeitschrift},
  number    = {4},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0016-3538},
  pages     = {285 -- 287},
  year      = {2012},
  abstract  = {Die Detektion von Schadstoffen repr{\"a}sentiert in der Umweltanalytik eine wichtige Aufgabenstellung. Gerade die Abwasser- bzw. Brauchwasseranalytik sowie die Prozesskontrolle haben einen hohen Stellenwert. Siliziumbasierte D{\"u}nnschichtsensoren bieten eine kosteng{\"u}nstige M{\"o}glichkeit, „online"-Messungen bzw. Vor-Ort-Messungen zeitnah durchzuf{\"u}hren. In dieser Arbeit wird ein potentiometrisches Sensorarray auf der Basis von Chalkogenidgl{\"a}sern zur Detektion von Schwermetallen in w{\"a}ssrigen Medien vorgestellt.},
  language  = {en}
}
@article{SponagelAdbayBeckeretal.1980,
  author    = {Sponagel, Stefan and Adbay, U. and Becker, E. and Krozer, S.},
  title     = {A possible cause of viscoelastic turbulence},
  series = {Rheology : proceedings of the 8th International Congress of Rheology, held in Naples, Italy, September 1 - 5, 1980 / Hrsg. von Giovanni Astarita, Vol. 2},
  journal   = {Rheology : proceedings of the 8th International Congress of Rheology, held in Naples, Italy, September 1 - 5, 1980 / Hrsg. von Giovanni Astarita, Vol. 2},
  publisher = {Plenum Pr.},
  address   = {New York},
  isbn      = {0-306-40465-6},
  pages     = {79 -- 84},
  year      = {1980},
  language  = {en}
}
@article{SponagelAkbayBecker1985,
  author    = {Sponagel, Stefan and Akbay, U. and Becker, E.},
  title     = {Instability of plane Couette flow of viscoelastic liquids},
  series = {Journal of non-Newtonian fluid mechanics. 18 (1985), H. 2},
  journal   = {Journal of non-Newtonian fluid mechanics. 18 (1985), H. 2},
  isbn      = {0377-0257},
  pages     = {123 -- 141},
  year      = {1985},
  language  = {en}
}
@article{SponagelAkbayBeckeretal.1980,
  author    = {Sponagel, Stefan and Akbay, U. and Becker, E. and Krozer, S.},
  title     = {Instability of slow viscometric flow},
  series = {Mechanics Research Communications. 7 (1980), H. 4},
  journal   = {Mechanics Research Communications. 7 (1980), H. 4},
  isbn      = {0093-6413},
  pages     = {199 -- 204},
  year      = {1980},
  language  = {en}
}
@article{SponagelBaroudFalketal.2004,
  author    = {Sponagel, Stefan and Baroud, G. and Falk, R. and Crookshank, M.},
  title     = {Experimental and theoretical investigation of directional permeability of human vertebral cancellous bone for cement infiltration. G. Baroud, R. Falk, M. Crookshank, S. Sponagel, T. Steffen},
  series = {Journal of Biomechanics. 37 (2004), H. 2},
  journal   = {Journal of Biomechanics. 37 (2004), H. 2},
  isbn      = {0021-9290},
  pages     = {189 -- 196},
  year      = {2004},
  language  = {en}
}
@article{SponagelBaroudFalketal.2004,
  author    = {Sponagel, Stefan and Baroud, G. and Falk, R. and Crookshank, M.},
  title     = {Corrigendum to "Experimental and theoretical investigation of directional permeability of human vertebral cancellous bone for cement infiltration". Baroud, G.; Falk, R.; Crookshank, M.; Sponagel, S.; Steffen, T.},
  series = {Journal of Biomechanics. 37 (2004), H. 2},
  journal   = {Journal of Biomechanics. 37 (2004), H. 2},
  isbn      = {0021-9290},
  pages     = {1802},
  year      = {2004},
  language  = {en}
}