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1

General-purpose high-speed integrated lock-in amplifier with 30

Hu, An, Chodavarapu, Vamsy P.

Journal:

Analog Integrated Circuits and Signal Processing

Year:

2013

Language:

english

File:

PDF, 670 KB

english, 2013

2

Ultraclean wafer-level vacuum-encapsulated silicon ring resonators for timing and frequency references

Xereas, George, Chodavarapu, Vamsy P.

Journal:

Journal of Micro/Nanolithography MEMS and MOEMS

Year:

2016

Language:

english

File:

PDF, 3.68 MB

english, 2016

3

Linearization of oscillation frequency for integrated LC-VCO with inversion-mode varactor

An Hu, Vamsy P. Chodavarapu

Journal:

Analog Integrated Circuits and Signal Processing

Year:

2011

Language:

english

File:

PDF, 605 KB

english, 2011

4

A 900

An Hu, Vamsy P. Chodavarapu

Journal:

Analog Integrated Circuits and Signal Processing

Year:

2012

Language:

english

File:

PDF, 916 KB

english, 2012

5

Capacitive MEMS absolute pressure sensor using a modified commercial microfabrication process

Merdassi, Adel, Allan, Charles, Harvey, Edward J., Chodavarapu, Vamsy P.

Journal:

Microsystem Technologies

Year:

2016

Language:

english

File:

PDF, 4.03 MB

english, 2016

6

Response of murine bone marrow-derived mesenchymal stromal cells to dry-etched porous silicon scaffolds

Mohamad Hajj-Hassan, Maedeh Khayyat-Kholghi, Huifen Wang, Vamsy Chodavarapu, Janet E. Henderson

Journal:

Journal of Biomedical Materials Research Part A

Year:

2011

Language:

english

File:

PDF, 1.64 MB

english, 2011

7

Handheld impedance biosensor system using engineered proteinaceous receptors

Ebrahim Ghafar-Zadeh, Shafinaz F. Chowdhury, Amir Aliakbar, Vamsy Chodavarapu, Rosemond Lambrose, Lenord Beital, Mohamad Sawan, Mark Trifiro

Journal:

Biomedical Microdevices

Year:

2010

Language:

english

File:

PDF, 669 KB

english, 2010

8

Erratum to: Handheld impedance biosensor system using engineered proteinaceous receptors

Ebrahim Ghafar-Zadeh, Shafinaz F. Chowdhury, Amir Aliakbar, Vamsy Chodavarapu, Rose Lumbroso, Lenore K. Beitel, Mohamad Sawan, Mark Trifiro

Journal:

Biomedical Microdevices

Year:

2010

Language:

english

File:

PDF, 49 KB

english, 2010

9

SPIE Proceedings [SPIE SPIE OPTO - San Francisco, California, USA (Saturday 21 January 2012)] Organic Photonic Materials and Devices XIV - Nanocrystalline cellulose for covert optical encryption

Zhang, Yu Ping, Chodavarapu, Vamsy P., Kirk, Andrew G., Andrews, Mark P., Tabor, Christopher, Kajzar, François, Kaino, Toshikuni, Koike, Yasuhiro

Year:

2012

Language:

english

File:

PDF, 4.65 MB

english, 2012

10

Structured color humidity indicator from reversible pitch tuning in self-assembled nanocrystalline cellulose films

Zhang, Yu Ping, Chodavarapu, Vamsy P., Kirk, Andrew G., Andrews, Mark P.

Journal:

Sensors and Actuators B: Chemical

Year:

2013

Language:

english

File:

PDF, 1.07 MB

english, 2013

11

[IEEE 2014 IEEE International Symposium on Circuits and Systems (ISCAS) - Melbourne VIC, Australia (2014.6.1-2014.6.5)] 2014 IEEE International Symposium on Circuits and Systems (ISCAS) - All-digital Time-Mode elliptic filters based on the operational simulation of LC ladders

Abdelfattah, Moataz, Roberts, Gordon W., Chodavarapu, Vamsy P.

Year:

2014

Language:

english

File:

PDF, 1.07 MB

english, 2014

12

SPIE Proceedings [SPIE SPIE OPTO - San Francisco, California (Saturday 22 January 2011)] Emerging Liquid Crystal Technologies VI - Origin of iridescence in chiral nematic phase nanocrystalline cellulose for encryption and enhanced color

Zhang, Yu Ping, Chodavarapu, Vamsy P., Kirk, Andrew G., Andrews, Mark P., Carluer, Melodie, Picard, Gilles, Chien, Liang-Chy, Yokoyama, Hiroshi

Year:

2011

Language:

english

File:

PDF, 15.88 MB

english, 2011

13

Wafer level vacuum encapsulated tri-axial accelerometer with low cross-axis sensitivity in a commercial MEMS Process

Merdassi, Adel, Kezzo, Mohamed Nizar, Xereas, George, Chodavarapu, Vamsy P.

Journal:

Sensors and Actuators A: Physical

Year:

2015

Language:

english

File:

PDF, 5.02 MB

english, 2015

14

Wafer-level vacuum-encapsulated rate gyroscope with high quality factor in a commercial MEMS process

Merdassi, Adel, Kezzo, Mohamad Nizar, Chodavarapu, Vamsy P.

Journal:

Microsystem Technologies

Year:

2017

Language:

english

File:

PDF, 2.51 MB

english, 2017

15

A direct-write microfluidic fabrication process for CMOS-based Lab-on-Chip applications

Ebrahim Ghafar-Zadeh, Mohamad Sawan, Daniel Therriault, Sumitra Rajagopalan, Vamsy P. Chodavarapu

Journal:

Microelectronic Engineering

Year:

2009

Language:

english

File:

PDF, 1.99 MB

english, 2009

16

Enhanced oxygen detection using porous polymeric gratings with integrated recognition elements

Sung Jin Kim, Vamsy P. Chodavarapu, Alexander N. Cartwright, Mark T. Swihart, Timothy J. Bunning

Journal:

Sensors and Actuators B: Chemical

Year:

2008

Language:

english

File:

PDF, 849 KB

english, 2008

17

Contact CMOS imaging of gaseous oxygen sensor array

Daisy S. Daivasagaya, Lei Yao, Ka Yi Yung, Mohamad Hajj-Hassan, Maurice C. Cheung, Vamsy P. Chodavarapu, Frank V. Bright

Journal:

Sensors and Actuators B: Chemical

Year:

2011

Language:

english

File:

PDF, 1.71 MB

english, 2011

18

[IEEE 2011 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Boston, MA (2011.08.30-2011.09.3)] 2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society - CMOS direct time interval measurement of long-lived luminescence lifetimes

Yao, Lei, Yung, Ka Yi, Cheung, Maurice C., Chodavarapu, Vamsy P., Bright, Frank V.

Year:

2011

Language:

english

File:

PDF, 1.24 MB

english, 2011

19

SPIE Proceedings [SPIE Biomedical Optics 2006 - San Jose, CA (Saturday 21 January 2006)] Nanobiophotonics and Biomedical Applications III - CMOS-based biosensor systems using integrated nanostructured recognition elements

Chodavarapu, Vamsy P., Shubin, Daniil O., Bukowski, Rachel M., Tehan, Elizabeth C., Titus, Albert H., Cartwright, Alexander N., Bright, Frank V., Cartwright, Alexander N., Nicolau, Dan V.

Year:

2006

Language:

english

File:

PDF, 377 KB

english, 2006

20

[IEEE 2008 Joint International IEEE Northeast Workshop on Circuits and Systems (NEWCAS) and TAISA Conference (NEWCAS-TAISA) - Montreal, QC, Canada (2008.06.22-2008.06.25)] 2008 Joint 6th International IEEE Northeast Workshop on Circuits and Systems and TAISA Conference - CMOS imager microsystem for multi-bacteria detection

Lei Yao,, Hassan, Mohamad Hajj, Chodavarapu, Vamsy, Shabani, Arghavan, Allain, Beatrice, Zourob, Mohammed, Mandeville, Rosemonde

Year:

2008

Language:

english

File:

PDF, 984 KB

english, 2008

21

NeuroMEMS: Neural Probe Microtechnologies

HajjHassan, Mohamad, Chodavarapu, Vamsy, Musallam, Sam

Journal:

Year:

2008

Language:

english

File:

PDF, 2.26 MB

english, 2008

22

[IEEE 2013 IEEE Sensors - Baltimore, MD, USA (2013.11.3-2013.11.6)] 2013 IEEE SENSORS - Design of CMOS capacitance to frequency converter for high-temperature MEMS sensors

Wang, Yucai, Chodavarapu, Vamsy P.

Year:

2013

Language:

english

File:

PDF, 815 KB

english, 2013

23

[IEEE 2008 IEEE 14th International Mixed-Signals, Sensors, and Systems Test Workshop (IMS3TW 2008) - Vancouver, BC, Canada (2008.06.18-2008.06.20)] 2008 IEEE 14th International Mixed-Signals, Sensors, and Systems Test Workshop - Bacteria growth monitoring through an on-chip capacitive sensor

Ghafar-Zadeh, Ebrahim, Sawan, Mohamad, Shabani, Arghavan, Zourob, Mohammed, Chodavarapu, Vamsy

Year:

2008

Language:

english

File:

PDF, 228 KB

english, 2008

24

[IEEE 2007 International Symposium on Signals, Systems and Electronics - Montreal, QC, Canada (2007.07.30-2007.08.2)] 2007 International Symposium on Signals, Systems and Electronics - CMOS Microsystems for Phase Fluorometric Biochemical Monitoring

Cartwright, Alexander N., Chodavarapu, Vamsy P., Kim, Sung Jin, Bukowski, Rachel M., Titus, Albert H., Bright, Frank V.

Year:

2007

Language:

english

File:

PDF, 454 KB

english, 2007

25

Demonstration of a plasmonic thermocycler for the amplification of human androgen receptor DNA

Roche, Philip J. R., Beitel, Lenore K., Khan, Rifat, Lumbroso, Rose, Najih, Mohamed, Cheung, Maurice C.-K., Thiemann, Joachim, Veerasubramanian, Venkat, Trifiro, Mark, Chodavarapu, Vamsy P., Kirk, And

Journal:

The Analyst (Royal Society of Chemistry)

Year:

2012

Language:

english

File:

PDF, 387 KB

english, 2012

26

[IEEE 2014 15th International Symposium on Quality Electronic Design (ISQED) - Santa Clara, CA, USA (2014.03.3-2014.03.5)] Fifteenth International Symposium on Quality Electronic Design - Design of a CMOS readout circuit for wide-temperature range capacitive MEMS sensors

Wang, Yucai, Chodavarapu, Vamsy P.

Year:

2014

Language:

english

File:

PDF, 443 KB

english, 2014

27

[IEEE 2007 Digest of the IEEE/LEOS Summer Topical Meetings - Portland, OR, USA (2007.07.23-2007.07.25)] 2007 Digest of the IEEE/LEOS Summer Topical Meetings - CMOS Chemical and Biochemical Sensors using Nanostructured Materials

Kim, Sung Jin, Chodavarapu, Vamsy P., Titus, Albert. H., Bright, Frank V., Govindaraju, Venu, Cartwright, Alexander N.

Year:

2007

Language:

english

File:

PDF, 3.18 MB

english, 2007

28

[IEEE 2013 26th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE) - Regina, SK, Canada (2013.05.5-2013.05.8)] 2013 26th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE) - Design of temperature compensated radio frequency free-free beam MEMS resonators using a commercial process

Xereas, George, Chodavarapu, Vamsy P.

Year:

2013

Language:

english

File:

PDF, 577 KB

english, 2013

29

CMOS-Based Phase Fluorometric Oxygen Sensor System

Chodavarapu, Vamsy P., Shubin, Daniil O., Bukowski, Rachel M., Titus, Albert H., Cartwright, Alexander N., Bright, Frank V.

Journal:

IEEE Transactions on Circuits and Systems I Fundamental Theory and Applications

Year:

2007

Language:

english

File:

PDF, 1.53 MB

english, 2007

30

[IEEE 2014 IEEE 27th Canadian Conference on Electrical and Computer Engineering (CCECE) - Toronto, ON, Canada (2014.5.4-2014.5.7)] 2014 IEEE 27th Canadian Conference on Electrical and Computer Engineering (CCECE) - Extreme wide-temperature range 8-bit digital to analog converter in bulk CMOS process

Greig, Kevin S., Chodavarapu, Vamsy P.

Year:

2014

Language:

english

File:

PDF, 1.08 MB

english, 2014

31

[IEEE 2008 Canadian Conference on Electrical and Computer Engineering - CCECE - Niagara Falls, ON, Canada (2008.05.4-2008.05.7)] 2008 Canadian Conference on Electrical and Computer Engineering - CMOS capactive sensor system for bacteria detection using phage organisms

Lei Yao,, Hajj-Hassan, Mohamad, Ghafar-Zadeh, Ebrahim, Shabani, Arghavan, Chodavarapu, Vamsy, Zourob, Mohammed

Year:

2008

Language:

english

File:

PDF, 600 KB

english, 2008

32

[IEEE 2014 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC) - Chengdu, China (2014.6.18-2014.6.20)] 2014 IEEE International Conference on Electron Devices and Solid-State Circuits - High-temperature general purpose operational amplifier in IBM 0.13 µm CMOS process

Wang, Yucai, Chodavarapu, Vamsy P.

Year:

2014

Language:

english

File:

PDF, 703 KB

english, 2014

33

[IEEE 2015 16th International Symposium on Quality Electronic Design (ISQED) - Santa Clara, CA, USA (2015.3.2-2015.3.4)] Sixteenth International Symposium on Quality Electronic Design - Design of a sigma-delta modulator in standard CMOS process for wide-temperature applications

Wang, Yucai, Chodavarapu, Vamsy P.

Year:

2015

Language:

english

File:

PDF, 482 KB

english, 2015

34

Disposable organic fluorescence biosensor for water pollution monitoring.

Lefèvre, Florent, Yu, Luping, Chodavarapu, Vamsy, Juneau, Philippe, Izquierdo, Ricardo

Journal:

MRS Proceedings

Year:

2011

Language:

english

File:

PDF, 540 KB

english, 2011

35

Functionalized Photonic Crystal Sensor Elements based on Nanoporous Polymers

Kim, Sung Jin, Nio, Elizabeth, Chodavarapu, Vamsy P, Titus, Albert H, Swihart, Mark T, Cartwright, Alexander N

Journal:

MRS Proceedings

Year:

2007

Language:

english

File:

PDF, 778 KB

english, 2007

36

SPIE Proceedings [SPIE SPIE MOEMS-MEMS - San Francisco, California, United States (Saturday 1 February 2014)] Micromachining and Microfabrication Process Technology XIX - Design of active temperature compensated composite free-free beam MEMS resonators in a standard process

Maher, Mary Ann, Resnick, Paul J., Xereas, George, Chodavarapu, Vamsy P.

Year:

2014

Language:

english

File:

PDF, 748 KB

english, 2014

37

SPIE Proceedings [SPIE Photonics North 2010 - Niagara Falls, Canada (Tuesday 1 June 2010)] Photonics North 2010 - Dry etch fabrication of ultra-thin porous silicon membranes

Hajj-Hassan, Mohamad, Cheung, Maurice, Chodavarapu, Vamsy, Schriemer, Henry P., Kleiman, Rafael N.

Year:

2010

Language:

english

File:

PDF, 1.95 MB

english, 2010

38

A Wafer Level Vacuum Encapsulated Capacitive Accelerometer Fabricated in an Unmodified Commercial MEMS Process

Merdassi, Adel, Yang, Peng, Chodavarapu, Vamsy

Journal:

Year:

2015

Language:

english

File:

PDF, 1.73 MB

english, 2015

39

Differential Wide Temperature Range CMOS Interface Circuit for Capacitive MEMS Pressure Sensors

Wang, Yucai, Chodavarapu, Vamsy

Journal:

Year:

2015

Language:

english

File:

PDF, 1.16 MB

english, 2015

40

Creating Diversified Response Profiles from a Single Quenchometric Sensor Element by Using Phase-Resolved Luminescence

Tehan, Elizabeth, Bukowski, Rachel, Chodavarapu, Vamsy, Titus, Albert, Cartwright, Alexander, Bright, Frank

Journal:

Year:

2015

Language:

english

File:

PDF, 799 KB

english, 2015

41

Direct-Dispense Polymeric Waveguides Platform for Optical Chemical Sensors

Hajj-Hassan, Mohamad, Gonzalez, Timothy, Ghafar-Zadeh, Ebrahim, Djeghelian, Hagop, Chodavarapu, Vamsy, Andrews, Mark, Therriault, Daniel

Journal:

Year:

2008

Language:

english

File:

PDF, 348 KB

english, 2008

42

SPIE Proceedings [SPIE SPIE NanoScience + Engineering - San Diego, California, United States (Sunday 17 August 2014)] Nanostructured Thin Films VII - Nanocrystalline cellulose for optical encryption

Lakhtakia, Akhlesh, Mackay, Tom G., Suzuki, Motofumi, Zhang, Yu Ping, Allahverdyan, Karen, Morse, Timothy, Chodavarapu, Vamsy P., Kirk, Andrew G., Galstian, Tigran, Andrews, Mark P.

Year:

2014

Language:

english

File:

PDF, 742 KB

english, 2014

43

Wide-temperature range CMOS capacitance to digital convertor for MEMS pressure sensors

Wang, Yucai, Chodavarapu, Vamsy P.

Journal:

Sensors and Actuators A: Physical

Year:

2015

Language:

english

File:

PDF, 2.86 MB

english, 2015

44

SPIE Proceedings [SPIE SPIE BiOS - San Francisco, California (Saturday 22 January 2011)] Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VIII - Demonstration of a reusable plasmonic polymer microarray sensing platform

Roche, Philip J. R., Cheung, Maurice C., Wang, Songzhe, Banan, Behnam, Chodavarapu, Vamsy P., Kirk, Andrew G., Cartwright, Alexander N., Nicolau, Dan V.

Year:

2011

Language:

english

File:

PDF, 1.02 MB

english, 2011

45

SPIE Proceedings [SPIE SPIE BiOS: Biomedical Optics - San Jose, CA (Saturday 24 January 2009)] Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VI - Brain machine interfaces combining microelectrode arrays with nanostructured optical biochemical sensors

Hajj-Hassan, Mohamad, Gonzalez, Timothy, Ghafer-Zadeh, Ebrahim, Chodavarapu, Vamsy, Musallam, Sam, Andrews, Mark, Cartwright, Alexander N., Nicolau, Dan V.

Year:

2009

Language:

english

File:

PDF, 717 KB

english, 2009

46

SPIE Proceedings [SPIE SPIE BiOS - San Francisco, California (Saturday 21 January 2012)] Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VIII - Optical mapping by low-cost instrumentation and disposable chemically induced nanochannels

Roche, Philip J. R., Cheung, Maurice C., Beitel, Lenore, Trifiro, Mark A., Chodavarapu, Vamsy P., Kirk, Andrew G., Cartwright, Alexander N., Nicolau, Dan V.

Year:

2012

Language:

english

File:

PDF, 1.33 MB

english, 2012

47

Wafer-Level Vacuum-Encapsulated Lamé Mode Resonator With f-Q Product of $2.23 \times 10^{13}$ Hz

Xereas, George, Chodavarapu, Vamsy P.

Journal:

IEEE Electron Device Letters

Year:

2015

Language:

english

File:

PDF, 1.37 MB

english, 2015

48

SPIE Proceedings [SPIE SPIE BiOS - San Francisco, California, USA (Saturday 21 January 2012)] Optical Diagnostics and Sensing XII: Toward Point-of-Care Diagnostics; and Design and Performance Validation of Phantoms Used in Conjunction with Optical Measurement of Tissue IV - A study of a self diagnostic platform for the detection of A2 biomarker for Leishmania donovani

Roche, Philip J. R., Cheung, Maurice C., Najih, Mohamed, McCall, Laura-Isobel, Fakih, Ibrahim, Chodavarapu, Vamsy P., Ward, Brian, Ndao, Momar, Kirk, Andrew G., Nordstrom, Robert J., Coté, Gerard L.

Year:

2012

Language:

english

File:

PDF, 422 KB

english, 2012

49

WITHDRAWN: A charge-based capacitive sensor for bacteria growth monitoring

Ghafar-Zadeh, Ebrahim, Sawan, Mohamad, Shabani, Arghavan, Chodavarapu, Vamsy P., Zourob, Mohammed

Journal:

Sensors and Actuators A: Physical

Year:

2008

File:

PDF, 47 KB

2008

50

[IEEE NAECON 2015 - IEEE National Aerospace and Electronics Conference - Dayton, OH, USA (2015.6.15-2015.6.19)] 2015 National Aerospace and Electronics Conference (NAECON) - Design of wide temperature range resonant-mode absolute MEMS pressure sensor

Xereas, George, Allan, Charles, Chodavarapu, Vamsy P.

Year:

2015

Language:

english

File:

PDF, 877 KB

english, 2015