2018

• Viviane S. Teixeira, Jan-Patrick Kalckhoff, Wolfgang Krautschneider, Dietmar Schroeder
  Bioimpedance Analysis of L929 and HaCaT Cells in Low Frequency Range
  In Tagungsband "Bioimpedance Analysis of L929 and HaCaT Cells in Low Frequency Range" der DGBMT - German Society for Biomedical Engineering (VDE|DGBMT), Verlag De Gruyter, 2018, Nr. 4(1), Serie "1", p. 1-4, Herausgeber Current Directions in Biomedical Engineering 2018
  BMT 2018 - 52nd DGBMT Annual Conference of the German Society for Biomedical Engineering
  Abstract:
  In this work, Bioimpedance Spectroscopy (BIS) is used to study fluids and cell solutions. A new four-electrode-terminal(4T) chamber using 3D printing and stainless steel corrosion resistant (V4A) was designed to measure the impedance oflive cell solutions at the frequency range 0.1Hz-1MHz. At frequencies below 1kHz the double layer (DL) that builds atelectrode’s surface raises the impedance substantially preventing the observation of the real impedance of the cells. Thenew 4T design circumvents the DL, is more robust and cheap, and allows for the repeatability of the results. Experimentswere performed in vitro with two cell lines, L929 (mouse fibroblasts) and HaCaT (human keratinocytes). Resultsshow that it is possible to distinguish between the two cell lines by means of its BIS measurements in the new setup.Also, a low-frequency dispersion ( -dispersion) was observed in HaCaT cells solution, but not in L929. By the end, apotentiostat circuit model was developed in LTSpice to simulate the hardware setup and two different circuit modelswere used to fit cell's data.
  BibTeX:
  @inproceedings{Teixeira:BMT2018,
  author = {Viviane S. Teixeira and Jan-Patrick Kalckhoff and Wolfgang Krautschneider and Dietmar Schroeder},
  title = {{B}ioimpedance {A}nalysis of {L}929 and {H}a{C}a{T} {C}ells in {L}ow {F}requency {R}ange},
  year = {2018},
  month = {09},
  booktitle = {Bioimpedance Analysis of L929 and HaCaT Cells in Low Frequency Range},
  editor = {Current Directions in Biomedical Engineering 2018},
  note = {BMT 2018 - 52nd DGBMT Annual Conference of the German Society for Biomedical Engineering},
  number = {4(1)},
  organization = {DGBMT - German Society for Biomedical Engineering (VDE|DGBMT)},
  pages = {1-4},
  publisher = {De Gruyter},
  series = {1} }
  [Abstract] [BibTeX]
  
  
• P. Mendoza-Ponce and B. John and D. Schroeder and W. H. Krautschneider
  Super-capacitors for implantable medical devices with wireless power transmission
  In Tagungsband "2018 14th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)", 2018, p. 241-244
  2018 14th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)
  Abstract:
  Patients using implantable devices with wireless power transmission (such as inductive telemetry) as the energy source are required to carry external hardware and antennas on their body continuously during the monitoring period. This discomfort can be reduced by integrating tiny super-capacitors as an energy source for the device. The external wireless telemetry unit used to activate and interrogate the implantable device charges the super capacitors integrated on it. When the wireless telemetry unit is removed, the super capacitor powers the implantable device. This paper shows the benefits of integrating super capacitors onto an existing pressure sensing medical implant that utilises an inductive telemetry link. Test results show that the implant can be powered for a full day using an 88 mF super capacitor. This super capacitor can be fully charged using the inductive telemetry link at a wireless distance of 20 cm in 81 seconds.
  BibTeX:
  @inproceedings{8430360,
  author = {P. Mendoza-Ponce and B. John and D. Schroeder and W. H. Krautschneider},
  title = {{S}uper-capacitors for implantable medical devices with wireless power transmission},
  year = {2018},
  month = {07},
  booktitle = {2018 14th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)},
  note = {2018 14th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)},
  pages = {241-244} }
  [Abstract] [BibTeX] [DOI]
  
  
• Butz, Natalie and Taschwer, Armin and Nessler, Sebastian and Manoli, Yiannos and Kuhl, Matthias
  A 22 V Compliant 56$$$$ackslash$mu$$ $ W Twin-Track Active Charge Balancing Enabling 100\% Charge Compensation Even in Monophasic and 36\% Amplitude Correction in Biphasic Neural Stimulators
  Artikel in "IEEE Journal of Solid-State Circuits", vol. 53, Nr. 8, p. 2298--2310, 2018
  Abstract:
  
  BibTeX:
  @article{butz201822,
  author = {Butz and Natalie and Taschwer and Armin and Nessler and Sebastian and Manoli and Yiannos and Kuhl and Matthias},
  title = {{A} 22 {V} {C}ompliant 56$$$$ackslash$mu$$ $ {W} {T}win-{T}rack {A}ctive {C}harge {B}alancing {E}nabling 100% {C}harge {C}ompensation {E}ven in {M}onophasic and 36% {A}mplitude {C}orrection in {B}iphasic {N}eural {S}timulators},
  year = {2018},
  journal = {IEEE Journal of Solid-State Circuits},
  number = {8},
  pages = {2298--2310},
  publisher = {IEEE},
  volume = {53} }
  [BibTeX]
  
  
• De Dorigo, Daniel and Moranz, Christian and Graf, Hagen and Marx, Maximilian and Wendler, Daniel and Shui, Boyu and Herbawi, Abdalrahman Sayed and Kuhl, Matthias and Ruther, Patrick and Paul, Oliver and others
  Fully Immersible Subcortical Neural Probes With Modular Architecture and a Delta-Sigma ADC Integrated Under Each Electrode for Parallel Readout of 144 Recording Sites
  Artikel in "IEEE Journal of Solid-State Circuits", vol. 53, Nr. 11, p. 3111--3125, 2018
  Abstract:
  
  BibTeX:
  @article{de2018fully2,
  author = {De Dorigo and Daniel and Moranz and Christian and Graf and Hagen and Marx and Maximilian and Wendler and Daniel and Shui and Boyu and Herbawi and Abdalrahman Sayed and Kuhl and Matthias and Ruther and Patrick and Paul and Oliver and others},
  title = {{F}ully {I}mmersible {S}ubcortical {N}eural {P}robes {W}ith {M}odular {A}rchitecture and a {D}elta-{S}igma {A}{D}{C} {I}ntegrated {U}nder {E}ach {E}lectrode for {P}arallel {R}eadout of 144 {R}ecording {S}ites},
  year = {2018},
  journal = {IEEE Journal of Solid-State Circuits},
  number = {11},
  pages = {3111--3125},
  publisher = {IEEE},
  volume = {53} }
  [BibTeX]
  
  
• Juan-Jose Montero-Rodriguez
  Impedance spectroscopy for characterization of biological matter
  Buch, erschienen bei Logos Berlin (Berlin), vol. 8, Serie "Wissenschaftliche Beiträge zur Medizinelektronik", 2018, Herausgeber Wolfgang Krautschneider
  Abstract:
  Standard characterization methods of biological cells are time consuming and may reduce cell viability by staining them with markers. An alternative fast and non-destructive method is developed using impedance spectroscopy, which has potential applications in biology. The technique is used to identify tumor cells in mice, detect bacterial eye infections, monitor fruit ripening, and measure sweat lactate concentration in humans by using a skin sensor. These applications often require a portable measurement system. Therefore, three portable systems were designed and tested. It has been shown that the method can be further improved by four-terminal measurements. For extension of the method in the millimeter-wave frequencies, full electromagnetic simulation of the chip has been carried out, and electrodes and interconnections have been adjusted accordingly.
  BibTeX:
  @book{Rodriguez.2018,
  author = {Juan-Jose Montero-Rodriguez},
  title = {{I}mpedance spectroscopy for characterization of biological matter},
  year = {2018},
  address = {Berlin},
  editor = {Wolfgang Krautschneider},
  publisher = {Logos Berlin},
  series = {Wissenschaftliche Beitr{\"a}ge zur Medizinelektronik},
  volume = {8} }
  [Abstract] [BibTeX]
  
  
• Seifaei, Masoud and De Dorigo, Daniel and Fleig, David Ingvar and Kuhl, Matthias and Zschieschang, Ute and Klauk, Hagen and Manoli, Yiannos
  Stable, Self-Biased and High-Gain Organic Amplifiers with Reduced Parameter Variation Effect
  In Tagungsband "2018 IEEE Asian Solid-State Circuits Conference (A-SSCC)" der IEEE, 2018, p. 119--122
  Abstract:
  
  BibTeX:
  @inproceedings{seifaei2018stable,
  author = {Seifaei and Masoud and De Dorigo and Daniel and Fleig and David Ingvar and Kuhl and Matthias and Zschieschang and Ute and Klauk and Hagen and Manoli and Yiannos},
  title = {{S}table, {S}elf-{B}iased and {H}igh-{G}ain {O}rganic {A}mplifiers with {R}educed {P}arameter {V}ariation {E}ffect},
  year = {2018},
  booktitle = {2018 IEEE Asian Solid-State Circuits Conference (A-SSCC)},
  organization = {IEEE},
  pages = {119--122} }
  [BibTeX]
  
  
• De Dorigo, Daniel and Moranz, Christian and Graf, Hagen and Marx, Maximilian and Shui, Boyu and Kuhl, Matthias and Manoli, Yiannos
  A fully immersible deep-brain neural probe with modular architecture and a delta-sigma ADC integrated under each electrode for parallel readout of 144 recording sites
  In Tagungsband "2018 IEEE International Solid-State Circuits Conference-(ISSCC)" der IEEE, 2018, p. 462--464
  Abstract:
  
  BibTeX:
  @inproceedings{de2018fully,
  author = {De Dorigo and Daniel and Moranz and Christian and Graf and Hagen and Marx and Maximilian and Shui and Boyu and Kuhl and Matthias and Manoli and Yiannos},
  title = {{A} fully immersible deep-brain neural probe with modular architecture and a delta-sigma {A}{D}{C} integrated under each electrode for parallel readout of 144 recording sites},
  year = {2018},
  booktitle = {2018 IEEE International Solid-State Circuits Conference-(ISSCC)},
  organization = {IEEE},
  pages = {462--464} }
  [BibTeX]
  
  
• Shui, Boyu and Keller, Matthias and Kuhl, Matthias and Manoli, Yiannos
  A 70.8 dB 0.0045 mm 2 low-power continuous-time incremental delta-sigma modulator for multi-site neural recording interfaces
  In Tagungsband "2018 IEEE International Symposium on Circuits and Systems (ISCAS)" der IEEE, 2018, p. 1--4
  Abstract:
  
  BibTeX:
  @inproceedings{shui201870,
  author = {Shui and Boyu and Keller and Matthias and Kuhl and Matthias and Manoli and Yiannos},
  title = {{A} 70.8 d{B} 0.0045 mm 2 low-power continuous-time incremental delta-sigma modulator for multi-site neural recording interfaces},
  year = {2018},
  booktitle = {2018 IEEE International Symposium on Circuits and Systems (ISCAS)},
  organization = {IEEE},
  pages = {1--4} }
  [BibTeX]
  
  
• Butz, Natalie and Kalita, Utpal and Kuhl, Matthias and Manoli, Yiannos
  Active Charge Balancer with 6.6 to 40 V Quad-Rail Power Supply Compliance for Neural Stimulators
  In Tagungsband "2018 IEEE International Symposium on Circuits and Systems (ISCAS)" der IEEE, 2018, p. 1--4
  Abstract:
  
  BibTeX:
  @inproceedings{butz2018active,
  author = {Butz and Natalie and Kalita and Utpal and Kuhl and Matthias and Manoli and Yiannos},
  title = {{A}ctive {C}harge {B}alancer with 6.6 to 40 {V} {Q}uad-{R}ail {P}ower {S}upply {C}ompliance for {N}eural {S}timulators},
  year = {2018},
  booktitle = {2018 IEEE International Symposium on Circuits and Systems (ISCAS)},
  organization = {IEEE},
  pages = {1--4} }
  [BibTeX]
  
  
• Sayed, Gayas Mohiuddin and Mendoza-Ponce, Pablo and Krautschneider, Wolfgang and Kuhl, Matthias
  Ultra-Low-Power Self-Biased 1 nA Current Reference Circuit for Medical Monitoring Devices in 350 nm and 180 nm CMOS Technology
  In Tagungsband "ANALOG 2018; 16th GMM/ITG-Symposium" der VDE, 2018, p. 1--4
  Abstract:
  
  BibTeX:
  @inproceedings{sayed2018ultra,
  author = {Sayed and Gayas Mohiuddin and Mendoza-Ponce and Pablo and Krautschneider and Wolfgang and Kuhl and Matthias},
  title = {{U}ltra-{L}ow-{P}ower {S}elf-{B}iased 1 n{A} {C}urrent {R}eference {C}ircuit for {M}edical {M}onitoring {D}evices in 350 nm and 180 nm {C}{M}{O}{S} {T}echnology},
  year = {2018},
  booktitle = {ANALOG 2018; 16th GMM/ITG-Symposium},
  organization = {VDE},
  pages = {1--4} }
  [BibTeX]
  
  
• Bibin John, Clemens Spink, Markus Braunschweig, Rajeev Ranjan, Dietmar Schroeder, Andreas Koops, Gregor Woldt, Ilka Rauh, Andreas Leuzinger, Gerhard Adam, Wolfgang H. Krautschneider
  A Stent Graft Occlusion Detection : Pressure Sensing Implant Device with Inductive Power and Data Telemetry
  In Tagungsband "ISCAS 2018, IEEE", 2018
  Florence, 27-30 may 2018
  Abstract:
  
  BibTeX:
  @inproceedings{bibin:iscas2018,
  author = {Bibin John and Clemens Spink and Markus Braunschweig and Rajeev Ranjan and Dietmar Schroeder and Andreas Koops and Gregor Woldt and Ilka Rauh and Andreas Leuzinger and Gerhard Adam and Wolfgang H. Krautschneider},
  title = {{A} {S}tent {G}raft {O}cclusion {D}etection : {P}ressure {S}ensing {I}mplant {D}evice with {I}nductive {P}ower and {D}ata {T}elemetry},
  year = {2018},
  booktitle = {ISCAS 2018, IEEE},
  note = {Florence, 27-30 may 2018} }
  [BibTeX] [DOI]
  
  
• Rajeev Ranjan, Mirko Hansen, Pablo Mendoza Ponce, Lait Abu Saleh, Dietmar Schroeder, Martin Ziegler, Herman Kohlstedt, Wolfgang H. Krautschneider
  Integration of Double Barrier Memristor with Neuron ASIC for Neuromorphic Hardware Learning
  In Tagungsband "ISCAS 2018, IEEE", 2018
  Florence, 27-30 may 2018
  Abstract:
  
  BibTeX:
  @inproceedings{ranjan:ISCAS2018,
  author = {Rajeev Ranjan and Mirko Hansen and Pablo Mendoza Ponce and Lait Abu Saleh and Dietmar Schroeder and Martin Ziegler and Herman Kohlstedt and Wolfgang H. Krautschneider},
  title = {{I}ntegration of {D}ouble {B}arrier {M}emristor with {N}euron {A}{S}{I}{C} for {N}euromorphic {H}ardware {L}earning},
  year = {2018},
  booktitle = {ISCAS 2018, IEEE},
  note = {Florence, 27-30 may 2018} }
  [BibTeX] [DOI]
  
  

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