Journals

2012-2015

  1. G. Xereas and V. P. Chodavarapu, "Wafer-Level Vacuum-Encapsulated Lame Mode Resonator with f-Q Product of 2.23e13 Hz." In Press IEEE Electron Device Letters, 2015.
  2. A. Merdassi, M. N. Kezzo, G. Xereas and V. P. Chodavarapu, "Wafer Level Vacuum Encapsulated Tri-Axial Accelerometer with Low Cross-Axis Sensitivity in an Unmodified Commercial MEMS Process." Sensors and Actuators: A Physical, 2015. [revision under review]
  3. Y. Wang and V. P. Chodavarapu, "Wide-Temperature Range CMOS Capacitance to Digital Convertor for MEMS Pressure Sensors." Accepted for Publication in Sensors and Actuators: A Physical, 2015.
  4. A. Merdassi, P. Yang and V. P. Chodavarapu, "Wafer Level Vacuum Encapsulated Capacitive Accelerometer Fabricated in an Unmodified Commercial MEMS Process." Sensors, vol. 15, iss. 4, pp. 7349-7359, 2015.
  5. Y. Wang and V. P. Chodavarapu, "Differential Wide Temperature Range CMOS Interface Circuit for Capacitive MEMS Pressure Sensors." Sensors, vol. 15, iss. 2, pp. 4253-4263, 2015.
  6. E. C. Tehan, R. M. Bukowski, V. P. Chodavarapu, A. H. Titus, A. N. Cartwright, and F. V. Bright, "Creating Diversified Response Profiles from a Single Quenchometric Sensor Element by Using Phase-Resolved Luminescence." Sensors, vol. 15, iss. 1, pp. 760-768, 2015.
  7. A. Hu and V. P. Chodavarapu, "General-Purpose High-Speed Integrated Lock-In Amplifier with 30dB Dynamic Reserve at 20MHz." Analog Integrated Circuits and Signal Processing, vol. 75, pp. 369-382, 2013.
  8. Y. P. Zhang, V. P. Chodavarapu, A. G. Kirk, M. P. Andrews, "Structured Color Humidity Indicator from Reversible Pitch Tuning in Self-Assembled Nanocrystalline Cellulose Films." Sensors & Actuators: B. Chemical, vol. 176, pp. 692-697, 2013.
  9. P. J. R. Roche, L. K. Beitel, R. Khan, R. Lumbroso, M. Najih, M. C.-K. Cheung, J. Thiemann, V. Veerasubramanian, Mark Trifiro, V. P. Chodavarapu, A. G. Kirk, "A Plasmonic Thermocycler for the Amplification of Human Androgen Receptor DNA." RSC Analyst, vol. 137, pp. 4475-4481, 2012.
  10. Y. P. Zhang, V. P. Chodavarapu, A. G. Kirk, M. P. Andrews, "Nanocrystalline Cellulose for Covert Optical Encryption." SPIE Journal of Nanophotonics, vol. 6, art. 063516, 2012. [SPIE Professional Magazine October 2012: R&D Highlights, Editor's Recommendation - The color of money]
  11. M. Hajj-Hassan, V. P. Chodavarapu, S. Musallam, "Silicon Optoelectronic Microelectrodes with Integrated Oxygen Sensors for Brain Machine Interfaces." IET Micro & Nano Letters, vol. 7, pp. 392-396, 2012. [Featured Article of the Issue]
  12. A. Hu and V. P. Chodavarapu, "A 900MHz Low Power LC-VCO with Reduced Flicker-Noise Up-conversion." Analog Integrated Circuits and Signal Processing, vol. 71, pp. 197-210, 2012.
  13. M. C. Cheung, K. Y. Yung, H. Xu, N. Kraut, K. Liu, V. P. Chodavarapu, A. N. Cartwright, F. V. Bright, "Porous Nanostructured Encapsulation and Immobilization Materials for Optical Biosensors." IEEE Journal of Selected Topics in Quantum Electronics, vol. 3, pp. 1147 - 1159, 2012. [Invited Article- Special Issue on BioPhotonics]
  14. F. Lefevre, A. Chalifour, L. Yu, V. Chodavarapu, P. Juneau, R. Izquierdo, "Algal Fluorescence Sensor Integrated into a Microfluidic Chip for Water Pollutant Detection." RSC Lab-on-a-Chip, vol. 4, pp. 787-793, 2012.

2010-2011

  1. P. J. R. Roche, S. Filion-Cotem, M. C-K. Cheung, V. P. Chodavarapu, A. G. Kirk, "A Camera Phone Localised Surface Plasmon Biosensing Platform Towards Low Cost Label Free Diagnostic Testing." Journal of Sensors, Vol. 2011, Article ID 406425, 2011.
  2. M. Hajj-Hassan, M. Khayyat-Kholghi, H. Wang, V. P. Chodavarapu, J. E. Henderson, "Response of Murine Bone Marrow-Derived Mesenchymal Stromal Cells to Dry-Etched Porous Silicon Scaffolds." Journal of Biomedical Materials Research: A, vol. 99A, pp. 269-274, 2011.
  3. A. Hu and V. P. Chodavarapu, "Linearization of Oscillation Frequency for Integrated LC-VCO with Inversion-Mode Varactor." Analog Integrated Circuits and Signal Processing, vol. 68, pp. 307-314, 2011.
  4. D. S. Daivasagaya, L. Yao, Ka Yi Yung, M. Hajj-Hassan, M. C. Cheung, V. P. Chodavarapu, and F. V. Bright, "Contact CMOS Imaging of Gaseous Oxygen Sensor Array." Sensors and Actuators: B Chemical, vol.157, pp. 408-416, 2011.
  5. L. Yao, P. Lamarche, N. Tawil, R. Khan, A. M. Aliakbar, M. Hajj-Hassan, V. P. Chodavarapu and R. Mandeville, "CMOS Conductometric System for Growth Monitoring and Sensing of Bacteria." IEEE Transactions on Biomedical Circuits & Systems, vol. 3, pp. 223-230, 2011.
  6. M. C. Cheung, P. J. R. Roche, M. Hajj-Hassan, A. G. Kirk, Z. Mi, V. P. Chodavarapu, "Controlling Optical Properties and Surface Morphology of Dry Etch Xenon Difluoride Porous Silicon." SPIE Journal of Nanophotonics, vol.5, iss. 1, art. 053503, 2011.
  7. M. Hajj-Hassan, M. C. Cheung, V. P. Chodavarapu, "Ultra-Thin Porous Silicon Membranes Fabricated using Dry Etching." IET Micro & Nano Letters, vol 6. iss.4, pp. 226-228, 2011.
  8. L. Yao, K. Y. Yung, V. P. Chodavarapu, F. V. Bright, "CMOS Imaging of Temperature Effects of Pin-Printed Xerogel Sensor Microarrays." IEEE Transactions on Biomedical Circuits & Systems, vol. 5, iss. 2, pp. 189-196, 2011.
  9. P. J. R. Roche, M. C. Cheung, L. Yao, A. G. Kirk, V. P. Chodavarapu, "Enhancement of Luminescent Quenching based Oxygen Sensing by Gold Nanoparticles: A Comparison between Luminophore:Matrix:Nanoparticle Thin Films on Glass and Gold Coated Substrates." SPIE Journal of Nanophotonics, vol. 4, art. 043521, 2010.
  10. E. Ghafar-Zadeh, S. F. Chowdhury, A. Aliakbar , R. Lambroso , V. P. Chodavarapu , L. Beitel , M. Sawan , M. Trifiro, "Handheld Impedance Biosensor System using Engineered Proteinaceous Receptors." Biomedical Microdevices, vol. 12, iss. 6, pp. 967-975, 2010.
  11. M. Hajj-Hassan, S. J. Kim, M. C. Cheung, L. Yao, V. P. Chodavarapu, A. N. Cartwright, "Porous Silicon and Porous Polymer Substrates for Optical Chemical Sensors." SPIE Journal of Nanophotonics, Vol. 4, No. 043513, 2010. (Selected for SPIE Newsroom article in Biomedical Optics & Medical Imaging, 24 September 2010, SPIE Newsroom)
  12. A. Hu and V. P. Chodavarapu, "CMOS Optoelectronic Lock-in Amplifier with Integrated Phototransistor Array." IEEE Transactions on Biomedical Circuits & Systems, vol. 4, pp. 274-280, 2010.
  13. E. Ghafar-Zadeh, M. Sawan, V. P. Chodavarapu, T. Hosseini-Nia, "Differential Monitoring of Bacterial Growth using CMOS Capacitive Sensors." IEEE Transactions on Biomedical Circuits & Systems, Vol. 4, pp. 232-238, 2010.
  14. P. J. R. Roche, M. C. Cheung, K. Y. Yung, A. G. Kirk, V. P. Chodavarapu, and F. V. Bright, "Application of Gold Quenching of Luminescence to Improve Oxygen Sensing using a Ruthenium (4,7-diphenyl-1,10-phenanthroline)3 Cl2:TEOS Thin Film." Sensors and Actuators: B Chemical, Vol. 147, pp. 581-586, 2010.
  15. L. Yao, K. Y. Yung, R. Khan, V. P. Chodavarapu, F. V. Bright, "CMOS Imaging of Pin-Printed Xerogel based Luminescent Sensor Microarrays." IEEE Sensors Journal, Vol. 10, pp. 1824-1832, 2010.
  16. M. Hajj-Hassan, M. C. Cheung, V. P. Chodavarapu, "Dry Etch Fabrication of Porous Silicon using Xenon Difluoride." IET Micro & Nano Letters, Vol. 5, pp. 63-69, 2010.

2005-2009

  1. L. Yao, R. Khan, V. P. Chodavarapu, V. Tripathi, F. V. Bright, "Sensitivity Enhanced CMOS Phase Luminometry System using Xerogel-based Sensors." IEEE Transactions on Biomedical Circuits & Systems, vol. 3, pp. 304-311, 2009.
  2. M. Hajj-Hassan, V. P. Chodavarapu, S. Musallam, "Reinforced Silicon Neural Microelectrode Array Fabricated using Commercial MEMS Process." SPIE Journal of Micro/Nanolithography, MEMS, and MOEMS, vol. 8, 033011, 2009. (Selected for Virtual Journal of Biological Physics Research, vol. 18, iss. 3, August 2009)
  3. E. Ghafar-Zadeh, M. Sawan, V. P. Chodavarapu, "Micro-organism-on-Chip: Emerging Direct-Write CMOS-based Platform for Biological Applications." IEEE Transactions on Biomedical Circuits & Systems, vol. 3, pp. 212-219, 2009.
  4. E. Ghafar-Zadeh, M. Sawan, D. Therriault, S. Rajagopalan, V. P. Chodavarapu, "A Direct-Write Microfluidic Fabrication Process for CMOS-based Lab-on-Chip Applications." Microelectronic Engineering, vol. 86, pp. 2104-2109, 2009.
  5. M. Hajj-Hassan, V. Chodavarapu, S. Musallam, "Microfabrication of Ultra-long Reinforced Silicon Neural Electrodes." IET Micro & Nano Letters, vol. 4, pp. 53-58, 2009. (Featured Article of the Issue)
  6. M. Hajj-Hassan, T. Gonzalez, E. Ghafer-Zadeh, H. Djeghelian, V. Chodavarapu, M. Andrews, D. Therriault, "Direct-Dispense Polymeric Waveguide Platform for Optical Chemical Sensors." Sensors, vol. 8, pp. 7636-7648, 2008.
  7. M. Hajj-Hassan, V. Chodavarapu, S. Musallam, "NeuroMEMS: Neural Probe Microtechnologies." Sensors, vol. 8, pp. 6704-6726, 2008.
  8. S. Rajagopalan, M. Sawan, E. Ghafer-Zadeh, O. Savadogo, V. Chodavarapu, "A Polypyrrole-based Strain Sensor Dedicated to Measure Bladder Volume in Patients with Urinary Dysfunction." Sensors, vol. 8, pp. 5081-5095, 2008.
  9. S. J. Kim, V. P. Chodavarapu, A. N. Cartwright, M. T. Swihart, and T. J. Bunning, "Enhanced Oxygen Detection using Porous Polymeric Gratings with Integrated Recognition Elements." Sensors and Actuators: B Chemical, vol. 130, pp. 758-764, 2008.
  10. V. P. Chodavarapu, R. M. Bukowski, A. H. Titus, A. N. Cartwright, F. V. Bright, "CMOS Integrated Luminescence Oxygen Multi-Sensor System." Electronics Letters, vol. 43, pp. 688-689, 2007.
  11. R. M. Bukowski, V. P. Chodavarapu, A. H. Titus, A. N. Cartwright, F. V. Bright, "Phase Fluorometric Glucose Biosensor using Oxygen as Transducer and Enzyme doped Xerogels." Electronics Letters, vol. 43, pp. 202-204, 2007.
  12. V. P. Chodavarapu, R. M. Bukowski, D. O. Shubin, A. H. Titus, A. N. Cartwright, F. V. Bright, "CMOS based Phase Fluorometric Oxygen Sensor System." IEEE Transactions on Circuits and Systems-I, vol. 54, pp. 111-118, 2007.
  13. X. Fang, V. K. Hsiao, V. P. Chodavarapu, A.H. Titus, A. N. Cartwright, "Colorimetric Porous Photonic Bandgap Sensors with Integrated CMOS Color Detectors." IEEE Sensors Journal, vol. 6, pp. 661- 667, 2006.
  14. V. P. Chodavarapu, R. M. Bukowski, S. J. Kim, A. H. Titus, A. N. Cartwright, F. V. Bright, "Multi-Sensor System Based on Phase Detection, an LED Array, and Luminophore-Doped Xerogels." Electronics Letters, vol. 41, pp. 1031-1033, 2005.
  15. V. P. Chodavarapu, A. H. Titus, A. N. Cartwright, "Differential Read-Out Architecture for CMOS ISFET Microsystems." Electronics Letters, vol. 41, pp. 698-699, 2005.

Contact

Integrated Microsystems Lab, Dr. Vamsy Chodavarapu, Director

Kettering Laboratories 452 
300 College Park 
Dayton, Ohio 45469 - 0232

937-229-3611 

Connect