Ajay Kottapalli

2025

Wavy Whiskers in Phocid Seals Exhibit High Signal-to-Noise in Sensing Hydrodynamic Flows

Zheng, X. Z., Kamat, A. M., Triantafyllou, M., Cao, M. & Kottapalli, A. G. P., 5-Feb-2025, Wavy Whiskers in Phocid Seals Exhibit High Signal-to-Noise in Sensing Hydrodynamic Flows. IEEE, p. 223 - 228 6 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

2024

High-Precision Fabrication of Graphene Nanoplatelet-Based Piezoresistive Strain Sensors Using PµSL 3D Printing Technology

Tekin, E., Cao, M. & Kottapalli, A. G. P., 17-Dec-2024, IEEE SENSORS 2024 : The 23rd IEEE Conference on Sensors. IEEE

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

7 Downloads (Pure)

Inkjet-printed Electrohydraulic Actuator

Gupta, C., Hoogenboom, W., Jayawardhana, B. & Kottapalli, A. G. P., 17-Dec-2024, IEEE Sensors 2024: The 23rd IEEE Conference on Sensors. IEEE, 4 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

1 Citation (Scopus)

7 Downloads (Pure)

Insights into the aspect ratio effects of ordered mesoporous carbon on the electrochemical performance of sulfur cathode in lithium-sulfur batteries

Xiang, Y., Lu, L., Zhang, Y., Ersek, G., Portale, G., Li, W., Zhang, W., Kottapalli, A. G. P. & Pei, Y., Jul-2024, In: Journal of Colloid and Interface Science. 665, p. 286-298 13 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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6 Citations (Scopus)

63 Downloads (Pure)

Metamaterial-based soft grippers for harvesting fragile crops

Guzman-Embus, D. A., Faber, T. K., Kottapalli, A. G. P. & Krushynska, A. O., 8-Oct-2024, 2024 18th International Congress on Artificial Materials for Novel Wave Phenomena, Metamaterials 2024. Institute of Electrical and Electronics Engineers Inc., 3 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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Nanomaterials-Based Bioinspired Next Generation Wearable Sensors: A State-of-the-Art Review

Sengupta, D. & Kottapalli, A. G. P., Jan-2024, In: Advanced electronic materials. 10, 1, 34 p., 2300436.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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8 Citations (Scopus)

138 Downloads (Pure)

Tuning the crystallinity of titanium nitride on copper-embedded carbon nanofiber interlayers for accelerated electrochemical kinetics in lithium–sulfur batteries

Xiang, Y., Lu, L., Yan, F., Sengupta, D., Rudolf, P., Kottapalli, A. G. P. & Pei, Y., Jun-2024, In: Carbon Energy. 6, 6, 16 p., e450.

Research output: Contribution to journal › Article › Academic › peer-review

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15 Citations (Scopus)

68 Downloads (Pure)

Undulating Seal Whiskers Evolved Optimal Wavelength-to-Diameter Ratio for Efficient Reduction in Vortex-Induced Vibrations

Kamat, A. M., Zheng, X. Z., Bos, J., Cao, M., Triantafyllou, M. & Kottapalli, A. G. P., Jan-2024, In: Advanced science . 11, 2, 15 p., 2304304.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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11 Citations (Scopus)

74 Downloads (Pure)

2023

Degradable PVAc-graphene nanofibrous membrane for flexible piezocapacitive sensors

Sengupta, D. & Kottapalli, A. G. P., Sept-2023, (Accepted/In press) 49th international conference on Micro and Nano Engineering. Berlin, 2 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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34 Downloads (Pure)

Electrically Conductive and Highly Stretchable Piezoresistive Polymer Nanocomposites via Oxidative Chemical Vapor Deposition

Mukherjee, A., Dianatdar, A., Gładysz, M. Z., Hemmatpour, H., Hendriksen, M., Rudolf, P., Włodarczyk-Biegun, M. K., Kamperman, M., Prakash Kottapalli, A. G. & Bose, R. K., 5-Jul-2023, In: ACS Applied Materials and Interfaces. 15, p. 31899−31916 18 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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14 Citations (Scopus)

117 Downloads (Pure)

Fabric-like electrospun PVAc-graphene nanofiber webs as wearable and degradable piezocapacitive sensors

Sengupta, D., Lu, E., Ribas Gomes, D., Jayawardhana, B., Pei, Y. & Kottapalli, A. G. P., 2023, In: ACS Applied Materials & Interfaces. 15, p. 22351–22366

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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23 Citations (Scopus)

179 Downloads (Pure)

Nitrogen-doped porous carbon nanofibers embedded with Cu/Cu₃P heterostructures as multifunctional current collectors for stabilizing lithium anodes in lithium-sulfur batteries

Xiang, Y., Lu, L., Li, W., Yan, F., Wang, H., Zhao, Z., Li, J., Giri Prakash Kottapalli, A. & Pei, Y., 15-Sept-2023, In: Chemical Engineering Journal. 472, 14 p., 145089.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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19 Citations (Scopus)

114 Downloads (Pure)

Wavy Whiskers in Wakes: Explaining the Trail-Tracking Capabilities of Whisker Arrays on Seal Muzzles

Zheng, X. Z., Kamat, A. M., Cao, M. & Kottapalli, A. G. P., 13-Jan-2023, In: Advanced science . 10, 2, 21 p., 202203062.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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20 Citations (Scopus)

116 Downloads (Pure)

2022

3D Printed Graphene Piezoresistive Microelectromechanical System Sensors to Explain the Ultrasensitive Wake Tracking of Wavy Seal Whiskers

Zheng, X. Z., Kamat, A. M., Krushynska, A., Cao, M. & Kottapalli, A. G. P., 17-Nov-2022, In: Advanced Functional Materials. 32, 47, 16 p., 2207274.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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34 Citations (Scopus)

245 Downloads (Pure)

An Inkjet-Printed Piezoresistive Bidirectional Flow Sensor

Sengupta, D., Birudula, S., Wortche, H. J. & Kottapalli, A. G. P., 9-Dec-2022, IEEE SENSORS 2022. IEEE, 4 p. 22362122

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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1 Citation (Scopus)

205 Downloads (Pure)

Bioinspired sweat-resistant wearable triboelectric nanogenerator for movement monitoring during exercise

Li, W., Lu, E., Kottapalli, A. G. P. & Pei, Y. T., May-2022, In: Nano energy. 95, 11 p., 107018.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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91 Citations (Scopus)

261 Downloads (Pure)

Fabric-Like Pvac-Graphene Nanofiber Capacitive Pressure Sensors For Next-Generation Wearables

Sengupta, D., Lu, E., Pei, Y. T. & Kottapalli, A. G. P., 11-Feb-2022, 2022 IEEE 35th International Conference on Micro Electro Mechanical Systems Conference (MEMS). IEEE, p. 341-344 4 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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4 Citations (Scopus)

193 Downloads (Pure)

Fully-printed metamaterial-type flexible wings with controllable flight characteristics

Zilyaev, I., Anerao, N., Kottapalli, A. G. P., Yilmaz, M. C., Murat, M., Ranjbar, M. & Krushynska, A., Mar-2022, In: Bioinspiration and Biomimetics. 17, 2, 22 p., 025002.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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8 Citations (Scopus)

263 Downloads (Pure)

Hydrophobic and Stable Graphene-Modified Organohydrogel Based Sensitive, Stretchable, and Self-Healable Strain Sensors for Human-Motion Detection in Various Scenarios

Wu, J., Huang, W., Wu, Z., Yang, X., Kottapalli, A. G. P., Xie, X., Zhou, Y. & Tao, K., 27-Jul-2022, In: ACS Materials Letters. 4, 9, p. 1616-1629 14 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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70 Citations (Scopus)

259 Downloads (Pure)

Natural frequency measurement of seal whiskers using a 3D-printed MEMS graphene-based cantilever sensor

Zheng, X., Kamat, A. M., Cao, M. & Kottapalli, A. G. P., 11-Feb-2022, 2022 IEEE 35th International Conference on Micro Electro Mechanical Systems Conference (MEMS). IEEE, p. 714-717 3 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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1 Citation (Scopus)

150 Downloads (Pure)

Particle size effects of ordered mesoporous carbon on the electrochemical performance of sulfur cathode in lithium-sulfur battery

Xiang, Y., Lu, L., Kottapalli, A. G. P. & Pei, Y. T., 12-Jun-2022.

Research output: Contribution to conference › Poster › Academic

Piezoresistive 3D graphene-PDMS spongy pressure sensors for IoT enabled wearables and smart products

Sengupta, D., Kamat, A. M., Smit, Q., Jayawardhana, B. & Kottapalli, A. G. P., 1-Mar-2022, In: Flexible and Printed Electronics. 7, 1, 16 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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27 Citations (Scopus)

218 Downloads (Pure)

Skin-Inspired Flexible and Stretchable Electrospun Carbon Nanofiber Sensors for Neuromorphic Sensing

Sengupta, D., Mastella, M., Chicca, E. & Kottapalli, A. G. P., 25-Jan-2022, In: Acs applied electronic materials. 4, 1, p. 308-315 8 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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20 Citations (Scopus)

145 Downloads (Pure)

Source Seeking Control of Unicycle Robots with 3-D-Printed Flexible Piezoresistive Sensors

Li, T., Jayawardhana, B., Kamat, A. M. & Kottapalli, A., Feb-2022, In: IEEE Transactions on Robotics. 38, 1, p. 448-462 15 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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8 Citations (Scopus)

286 Downloads (Pure)

Status and perspectives of hierarchical porous carbon materials in terms of high-performance lithium–sulfur batteries

Xiang, Y., Lu, E., Kottapalli, A. G. P. & Pei, Y. T., May-2022, In: Carbon Energy. 4, 3, p. 346-398 53 p.

Research output: Contribution to journal › Review article › peer-review

Open Access

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140 Citations (Scopus)

200 Downloads (Pure)

2021

3D-printed Flexible Piezoresistive Sensors-based Source Seeking Control of Unicycle Robots

Li, T., Jayawardhana, B., Kamat, A. M. & Kottapalli, A. G. P., 2021, p. 71. 1 p.

Research output: Contribution to conference › Abstract › Academic

3D Printed Graphene-Coated Flexible Lattice as Piezoresistive Pressure Sensor

Kamat, A. M. & Kottapalli, A. G. P., 6-Aug-2021, 2021 21st International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS). IEEE, p. 888-891 4 p. B4-411d

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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12 Citations (Scopus)

362 Downloads (Pure)

Bioinspired Designs and Biomimetic Applications of Triboelectric Nanogenerators

Li, W., Pei, Y., Zhang, C. & Kottapalli, A. G. P., Jun-2021, In: Nano energy. 84, 22 p., 105865.

Research output: Contribution to journal › Review article › peer-review

Open Access

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71 Citations (Scopus)

823 Downloads (Pure)

Bioinspired PDMS-graphene cantilever flow sensors using 3D printing and replica moulding

Kamat, A. M., Zheng, X., Jayawardhana, B. & Kottapalli, A. G. P., 26-Feb-2021, In: Nanotechnology. 32, 9, 11 p., 095501.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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34 Citations (Scopus)

187 Downloads (Pure)

Biomimetic Soft Polymer Microstructures and Piezoresistive Graphene MEMS Sensors using Sacrificial Metal 3D Printing

Kamat, A. M., Pei, Y. T., Jayawardhana, B. & Kottapalli, A. G. P., 13-Jan-2021, In: ACS Applied Materials & Interfaces. 13, 1, p. 1094-1104 11 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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47 Citations (Scopus)

569 Downloads (Pure)

Creating underwater vision through wavy whiskers: A review of the flow sensing mechanisms and biomimetic potential of seal whiskers

Zheng, X., Kamat, A. M., Cao, M. & Kottapalli, A. G. P., 27-Oct-2021, In: Journal of the Royal Society Interface. 18, 183, 23 p., 20210629.

Research output: Contribution to journal › Review article › peer-review

Open Access

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36 Citations (Scopus)

364 Downloads (Pure)

Electrospun Bundled Carbon Nanofibers for Skin-Inspired Tactile Sensing, Proprioception and Gesture Tracking Applications

Sengupta, D., Romano, J. & Kottapalli, A. G. P., 14-Oct-2021, In: npj Flexible Electronics. 5, 29, 14 p., 29.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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50 Citations (Scopus)

103 Downloads (Pure)

Fabrication of polymeric microstructures

Kamat, A. M. (Inventor), Kottapalli, A. G. P. (Inventor) & Pei, Y. (Inventor), 20-May-2021, IPC No. B22F3/00, B22F5/00, B29C33/38, B29C33/52, B29C39/36, B29C64/153, B29C64/40, Patent No. WO2021094623A1, 16-Nov-2020, Priority date 15-Nov-2019, Priority No. EP19209513A

Research output: Patent

Open Access

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66 Downloads (Pure)

Optimizing harbor seal whisker morphology for developing 3D-printed flow sensor

Zheng, X., Kamat, A. M., Harish, V. S., Cao, M. & Kottapalli, A. G. P., 2021, 21st International Conference on Solid-State Sensors, Actuators and Microsystems (Transducers). IEEE, p. 1271-1274 4 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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10 Citations (Scopus)

252 Downloads (Pure)

Wearable nanofiber-based triboelectric nanogenerator for body motion energy harvesting

Li, W., Sengupta, D., Pei, Y. & Kottapalli, A. G. P., 5-Jul-2021, 2021 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). IEEE, p. 1-4 4 p. 9469844

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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8 Citations (Scopus)

302 Downloads (Pure)

2020

A Low-Cost Lung Monitoring Point-Of-Care Device Based On A Flexible Piezoresistive Flow Sensor

Saha, U., Kamat, A. M., Sengupta, D., Jayawardhana, B. & Kottapalli, A. G. P., 2020, 2020 IEEE SENSORS Proceedings. IEEE, 4 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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6 Citations (Scopus)

177 Downloads (Pure)

Flexible Graphene-on-PDMS Sensor for Human Motion Monitoring Applications

Sengupta, D., Muthuram, V. & Kottapalli, A. G. P., 9-Dec-2020, Flexible Graphene-on-PDMS Sensor for Human Motion Monitoring Applications. IEEE, 4 p. 6378

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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5 Citations (Scopus)

211 Downloads (Pure)

PDMS Flow Sensors With Graphene Piezoresistors Using 3D Printing and Soft Lithography

Kamat, A. M., Jayawardhana, B. & Kottapalli, A. G. P., 2020, 2020 IEEE SENSORS Proceedings. IEEE, 4 p.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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5 Citations (Scopus)

303 Downloads (Pure)

Piezoresistive Carbon Nanofiber-Based Cilia-Inspired Flow Sensor

Sengupta, D., Trap, D. & Kottapalli, A. G. P., 26-Jan-2020, In: Nanomaterials (Basel, Switzerland). 10, 2, 13 p., 211.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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147 Downloads (Pure)

Single and bundled carbon nanofibers as ultralightweight and flexible piezoresistive sensors

Sengupta, D., Chen, S.-H., Michael, A., Kwok, C. Y., Lim, S., Pei, Y. T. & Kottapalli, A. G. P., 20-May-2020, In: npj Flexible Electronics. 4, 1, 9.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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40 Citations (Scopus)

142 Downloads (Pure)

Ultralight Weight Piezoresistive Spongy Graphene Sensors for Human Gait Monitoring Applications

Sengupta, D. & Kottapalli, A. G. P., 27-Sept-2020, Proceedings of the 15th Annual IEEE InternationalConference on Nano/Micro Engineered and Molecular Systems. IEEE, p. 120-123 4 p. 9265580. (15th IEEE International Conference on Nano/Micro Engineered and Molecular System, NEMS 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Open Access

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5 Citations (Scopus)

218 Downloads (Pure)

2019

3D-printed bioinspired microsensors for biomedical flow sensing applications

Kamat, A. & Kottapalli, A. G. P., 30-Sept-2019.

Research output: Contribution to conference › Poster › Professional

Bioinspired Cilia Sensors with Graphene Sensing Elements Fabricated Using 3D Printing and Casting

Kamat, A. M., Pei, Y. & Kottapalli, A. G. P., 30-Jun-2019, In: Nanomaterials. 9, 7, 14 p., 954.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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59 Citations (Scopus)

354 Downloads (Pure)

Design and applications of MEMS flow sensors: A review

Ejeian, F., Azadi, S., Razmjou, A., Orooji, Y., Kottapalli, A., Warkiani, M. E. & Asadnia, M., 15-Aug-2019, In: Sensors and Actuators A: Physical. 295, p. 483-502 20 p.

Research output: Contribution to journal › Article › Academic › peer-review

Open Access

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339 Citations (Scopus)

2819 Downloads (Pure)

Open Access

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2 Citations (Scopus)

133 Downloads (Pure)

Nature-Inspired Self-Powered Sensors and Energy Harvesters

Sengupta, D., Chen, S.-H. & Kottapalli, A. G. P., 1-Mar-2019, Self-Powered and Soft Polymer MEMS/NEMS Devices. Kottapalli, A. G. P., Tao, K., Sengupta, D. & Triantafyllou, M. S. (eds.). Cham: Springer International Publishing AG, p. 61-81 21 p.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › Academic › peer-review

Open Access

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4 Citations (Scopus)

142 Downloads (Pure)

Preface

Kottapalli, A. G. P., Tao, K., Sengupta, D. & Triantafyllou, M. S., 2019, In: SpringerBriefs in Applied Sciences and Technology. p. v-vii

Research output: Contribution to journal › Editorial › Academic › peer-review

Self-Powered and Soft Polymer MEMS/NEMS Devices

Kottapalli, A. G. P., Tao, K., Sengupta, D. & Triantafyllou, M. S., 1-Mar-2019, 1 ed. Springer. 93 p. (SpringerBriefs in Applied Sciences and Technology)

Research output: Book/Report › Book › Academic

3 Citations (Scopus)

Ajay Kottapalli

Research output

Search results