Publications

Journal Publications

25. Hongri Gu, Quentin Boehler, Daniel Ahmed, Bradley J. Nelson, Magnetic Quadrupole Assemblies with Arbitrary 2D Shapes and Magnetizations, Science Robotics, 4, 35, DOI: 10.1126/scirobotics.aax8977, 2019.

24. Nino F. Läubli, Naveen Shamsudhin, Hannes Vogler, Gautam Munglani, Ueli Grossniklaus, Daniel Ahmed*, Bradley J. Nelson. 3D Manipulation and Imaging of Plant Cells using Acoustically Activated Microbubbles, Small Methods, DOI: 10.1002/smtd.201800527, 2019. (*Corresponding Authors)

23. Xiang‐Zhong Chen, Bumjin Jang, Daniel Ahmed, Chengzhi Hu, Carmela De Marco, Marcus Hoop, Fajer Mushtaq, Bradley J Nelson, Salvador Pané, Small-scale machines driven by external power sources, Advanced Materials, DOI: doi.org/10.1002/adma.201705061, 2018.

22. Daniel Ahmed*, Thierry Baasch, Nicolas Blondel, Nino Läubli, Jürg Dual and Bradley J. Nelson*, Neutrophil-inspired propulsion in a combinedacoustic and magnetic field, Nature Communications, doi:10.1038/s41467-017-00845-5, (*Corresponding Authors)

Highlights: Appeared in ETH Zurich website, Newsline, Bionity,

Phys.org, EurokAlert, Nanowerk, Sign of the Times, Nanowerk,

Nanotechnology News, etc.

21.magnetic soft microswimmers, Adv. Mater. Technol. 2, 1700050, 2017. (*Corresponding Author, also featured in inside cover.)

Highlight: Advance Science News

20. Daniel Ahmed, Thierry Baasch, Bumjin Jang, Salvador Pane, Jurg Dual and Bradley J. Nelson, Artificial swimmers propelled by acoustically activated flagella, Nano Letters, 16 (8), pp 4968–4974, 2016.

Highlights: Nanotechweb.org, ETH Zurich facebook posts, MSRL News.

19. Fajer Mushtaq, Agim Asani, Marcus Hoop, Xiang-Zhong Chen, Daniel Ahmed, Bradley J. Nelson and Salvador Pane, Highly Efficient Coaxial TiO2-PtPd Tubular Nanomachines for Photocatalytic Water Purification with Multiple Locomotion Strategies, Adv. Funct. Material, 26, 6995–7002, 2016.

18. Daniel Ahmed, Adem Ozcelik, Nagagireesh Bojanala, Nitesh Nama, Awani Upadhyay, Yuchao Chen, Wendy Hanna-Rose, and Tony Jun Huang, Rotational manipulation of single cells and organisms using acoustic waves, Nature Communications, 7:11085, DOI: 10.1038/ncomms11085, 2016 (*equal contributions).

Highlights: in Penn State News, NIH, Phys.org, eurekalert!, Bionity, AzoNano, FreshGhana, Technology.org, Nanotechnology Now, Lab Manager, nanowerk, newswise, e! science News, Biotechniques, medGadget, DNA Barcoding, etc.

17. Daniel Ahmed, Xiaolei Peng, Adem Ozcelik, Yuebing Zheng, Tony Jun Huang, Acousto-Plasmofluidics: Acoustic Modulation of Surface Plasmon Resonance in Microfluidic Systems, AIP Advances, Vol. 5, pp. 097161, 2015.

16. P. H. Huang, C.Y. Chan, P. Li, N. Nama, Y. Xie, C.H. Wei, Y. Chen, D. Ahmed, T. Huang, A spatiotemporally controllable chemical gradient generator via acoustically oscillating sharp-edge structures, Lab on a Chip, Vol. 15 (21), pp. 4166-4176, 2015.

15. Daniel Ahmed, Mengqian Lu, Amir Nourhani, Paul E. Lammert, Zak Stratton, Hari S. Muddanna, Vincent H. Crespi, and Tony Jun Huang, Selectively manipulable acoustic-powered microswimmers, Scientific Reports, Vol. 5, pp. 9744, 2015.

14. Daniel Ahmed, Hari S. Muddana, Mengqian Lu, Jarrod French, Adem Ozcelik, Ye Fang, Peter J. Butler, Andreas Manz, Stephen J. Benkovic and Tony Jun Huang, Acoustofluidic chemical waveform generator and switch, Analytical Chemistry, Vol. 86 (23), pp. 11803-11810, 2014.

13. Adem Ozcelik, Daniel Ahmed, Yuliang Xie, Nitesh Nama, Zhiguo Qu, Ahmad Ahsan Nawaz, and Tony Jun Huang, An acoustofluidics micromixer via bubble inception and cavitation from microchannel sidewalls, Analytical Chemistry, Vol. 86, pp. 5083-5088, 2014.

12. Yuliang Xie, Daniel Ahmed, Michael Ian Lapsley, Mengqian Lu, Sixing Li, and Tony Jun Huang, Acoustofluidic relay: sequential trapping and transporting of micro particles via acoustically excited oscillating bubbles, JALA, Vol. 19(2), pp. 137-143, 2014.

11. Daniel Ahmed, Chung Yu Chan, Sz-Chin Steven Lin, Hari S. Muddana, Nitesh Nama, Stephen J. Benkovic and Tony Jun Huang, Tunable, pulsatile chemical gradient generation via acoustically driven oscillating bubbles, Lab on a Chip, Vol. 13, pp. 328-331, 2013. (Cover Image)

10. Po-Hsun Huang, Yuliang Xie, Daniel Ahmed, Joseph Rufo, Nitesh Nama,Yuchao Chen, Chung Yu Chan, and Tony Jun Huang, An acoustofluidic micromixer based on oscillating sidewall sharp-edges, Lab on a Chip, Vol. 13, pp. 3847-3852, 2013.

9. Po-Hsun Huang, Michael Ian Lapsley, Daniel Ahmed, Yuchao Chen, Lin Wang,and Tony Jun Huang, A single-layer, planar, optofluidic switch powered by acoustically driven oscillating microbubbles, Applied Physics Letters, Vol.101, 141101, 2012.

8. Yuliang Xie, Daniel Ahmed, Michael Lapsley, Sz-Chin Steven Lin, Ahsan Ahmad Nawaz, Lin Wang, Tony Jun Huang, Single-shot characterization of enzymatic reaction constants Km and kcat by an acoustic-driven, bubble-based fast micromixer, Analytical Chemistry, Vol. 84(17), pp. 7495-7501, 2012.

7. M. Thein, A. Cheng, P. Khanna, C. Zhang, E. J. Park, D Ahmed, C. J. Goodrich, Site-specific sonoporation of human melanoma cells at the cellular level using high lateral-resolution ultrasonic micro-transducer arrays, Biosensors and Bioelectronics, 27 (1), 25-33, 2011.

6. Yue Bing Zheng, Bala Krishna Juluri, Lin Lin Jensen, Daniel Ahmed, Mengqian Lu, Lasse Jensen, Tony Jun Huang, Dynamically tuning plasmon-exciton coupling in arrays of nanodisk-J-aggregate complexes, Advanced Materials, Vol. 22, pp. 3603-3607, 2010.

5. Daniel Ahmed, Xiaole Mao, Jinjie Shi, Bala Krishna Juluri, and Tony Jun Huang, Sub-milliseconds homogenous mixing using single bubble streaming phenomenon, Lab on Chip, Vol. 9, pp. 2738-2741, 2009.

4. Daniel Ahmed, Xiaole Mao, Bala Krishna Juluri and Tony Jun Huang, Fast microfluidic mixer via acoustic driven sidewall trapped bubbles, Microfluidics and Nanofluidics, Vol. 7, pp. 727-731, 2009.

3. Jinjie Shi, Daniel Ahmed, Xiaole Mao, Sz-Chin Steven Lin, Aitan Lawit and Tony Jun Huang, Acoustic tweezers: patterning cells and microparticles using standing surface acoustic waves, Lab on Chip, Vol. 9, pp. 2890-2895, 2009.

2. B. K. Juluri, Y. B. Zheng, D. Ahmed, L. Jensen and T. J. Huang, Effects of geometry and composition on charge-induced plasmonic shifts in gold nanoparticles, Journal of Physical Chemistry-C, Vol. 112, pp. 7309-7312, 2008.

1. Jinjie Shi, Xiaole Mao, Daniel Ahmed, Ashley Colletti,Tony Jun Huang, Focusing Microparticles in a Microfluidic channel with standing surface acoustic waves, Lab on a Chip, Vol. 8, pp. 221-223, 2008.

Conference Proceedings

1. Amir Nourhani, Daniel Ahmed, Mengqian Lu, Paul E. Lammert, Vincent H. Crespi and Tony Jun Huang, Acoustic Propulsion of Bubble-Engined Microswimmer, AIChe, Atlanta, GA, USA, November 16-21, 2014.

2. Adem Ozcelik, Daniel Ahmed, Nitesh Nama and Tony Jun Huang, Rapid Mixing of High Viscosity Fluids via Bubble Cavitation from Microchannel Sidewalls, the 18th International Conference on Miniaturized Systems for Chemistry and Life Sciences, San Antonio, Texas, USA, October 26-30, 2014.

3. Michael I. Lapsley, Daniel Ahmed, Chandraprakash Chindam, Feng Guo, Lin Wang, Tony Jun Huang, Characterizing Acoustic Oscillations of an Air-Liquid Interface Using an Optofluidic Interferometer, the 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, Okinawa, Japan, October 28-November 1, 2012.

4. Po-Hsun Huang, Michael I. Lapsley, Daniel Ahmed, Lin Wang, Tony Jun Huang, Acoustofluidic Optical Switch, the 16th International Conference on Miniaturized Systems for Chemistry and Life Sciences, Okinawa, Japan, October 28-November 1, 2012.

5. Daniel Ahmed, Hari S. Muddana, Mengqian Lu, Brian Kiraly, Andreas Manz, Stephen Benkovic, Tony Jun Huang, Chemical Waveform and Switch Using Acoustically Activated Bubbles, BMES 2012, Atlanta, Georgia, October 24-27, 2012.

6. Yuliang Xie, Daniel Ahmed, Michael Lapsley, Steven Sz-Chin Lin, Ahsan Ahmad Nawaz, Tony Jun Huang, Characterization of enzyme reaction constant via acoustic bubble mixer, BMES 2012, Atlanta, Georgia, October 24-27, 2012.

7. Po-Hsun Huang, Michael Lapsley, Daniel Ahmed, Tony Huang, Optical Switch Using Acoustically Driven Microbubbles, BMES 2012, Atlanta, Georgia, October 24-27, 2012.

8. Daniel Ahmed, Hari S. Muddana, Mengqian Lu, Xiaole Mao, Xiayun Ding, Peter J. Butler, and Tony Jun Huang, Programmable Chemical Waveform and Switching Using Acoustically Activated Bubbles, The 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences, Seattle, Washington, USA, Oct 2-6, 2011.

9. Jinjie Shi, Daniel Ahmed, Xiaole Mao, A. Lawit, and Tony Jun Huang, Dynamic Manipulation of Micro Particles in Microfluidics via Acoustic Tweezers, ASME 2010 First Global Congress on Nano Engineering for Medicine and Biology, Houston, TX, Feb 7-10, 2010.

10. Daniel Ahmed, Xiaole Mao, Bala Krishna Juluri, Tony Jun Huang, Fast microfluidic mixer using acoustic driven bubble transducer, 2009 ASME International Mechanical Engineering Congress & Exposition. Nov. 13-19, Lake Buena Vista, Florida.

11. Jinjie Shi, Daniel Ahmed, Xiaole Mao, and Tony Jun Huang, Focusing and Patterning Micro/Nano particles in Microfluidic Channels by Surface Acoustic Waves, the 2008 ASME International Mechanical Engineering Congress & Exposition, Boston, MA, November 2-6, 2008.

12. Daniel Ahmed, Xiaole Mao, Jinjie Shi, Bala Krishna Juluri, and Tony Jun Huang,Millisecond Microfluidic Mixer Using Acoustic Streaming of a Single Bubble, the 2008 ASME International Mechanical Engineering Congress & Exposition, Boston, MA, November 2-6, 2008.

13. Jinjie Shi, Daniel Ahmed, Xiaole Mao, and Tony Jun Huang, Focusing and Patterning Micro/Nano particles in Microfluidic Channels by Surface Acoustic Waves, the 2008 ASME International Mechanical Engineering Congress & Exposition, Boston, MA, November 2-6, 2008.

14. Jinjie Shi, Daniel Ahmed, Xiaole Mao, and Tony Jun Huang, Dynamic patterning of biomaterials in microfluidic channels by surface acoustic waves, the 2008 MRS Spring Meeting, San Francisco, CA, March 24-28, 2008.

15. Jinjie Shi, Daniel Ahmed, Xiaole Mao, and Tony Jun Huang, Standing Surface Acoustic Wave (SSAW) Induced Patterning of Micro Beads in Microfluidic Channels, 21st IEEE International Conference on Micro Electro Mechanical Systems (MEMS2008), Tucson, Arizona, January 13-17, pp. 26-29, 2008.