Current projects: 4. Other types of micromotors
Catalytic micromotors
The following studies focus mostly on Janus micromotors that, via surface catalysis or chemical decomposition, move by phoresis. We are particularly interested in their propulsion mechanisms, interactions, and motion in confinements.
1. Yong Wang, Wendi Duan, Chao Zhou, Qing Liu, Jiahui Gu, Heng Ye, Mingyu Li, Wei Wang* and Xing Ma*. Phoretic Liquid Metal Micro/Nanomotors as Intelligent Filler for Targeted Microwelding. Advanced Materials 2019, 31(51), 1905067. (published on October 30, 2019)
2. Xu, D.; Zhou, C.; Zhan, C.; Wang, Y.; You, Y.; Pan, X.; Jiao, J.; Zhang, R.; Dong, Z.; Wang, W.; Ma, X.*. Enzymatic Micromotors as a Mobile Photosensitizer Platform for Highly Efficient on-Chip Targeted Antibacteria Photodynamic Therapy. Adv. Funct. Mater. 2019, 3, 1807727–11.
3. Mengshi Wei, Chao Zhou, Jinyao Tang and Wei Wang*, Catalytic Micromotors Moving Near Polyelectrolyte-Modified Substrates: The Roles of Surface Charges, Morphology, and Released Ions, ACS Applied Materials & Interfaces, 2018, 10 (3), 2249–2252
4. Bumjin Jang, Wei Wang, Samuel Wiget, Andrew J. Petruska, Xiangzhong Chen, Chengzhi Hu, Ayoung Hong, David Folio, Antoine Ferreira, Salvador Pané*, and Bradley J. Nelson*, Catalytic locomotion of core-shell nanowire motors, ACS Nano, 2016, 10(11), 9983-9991
5. Chang Liu, Chao Zhou, Wei Wang and Hepeng Zhang*, Bimetallic Microswimmers Speed Up in Confining Channels, Physical Review Letters, 2016, 117, 198001
6. E. L. Jewell, W. Wang* and T. E. Mallouk*, Catalytically driven assembly of trisegmented metallic nanorods and polystyrene tracer particles, Soft Matter, 2016, 12(9), 2501-2504.
7. W. Wang; W. Duan; Z. Zhang; M. Sun; A. Sen; T. E. Mallouk*, A tale of two forces: simultaneous chemical and acoustic propulsion of bimetallic micromotors, Chem. Commun. 2015, 51, 1020-1023
8. W. Wang, W. Duan, T.E. Mallouk*, and A. Sen*, Catalytically-powered dynamic assembly of rod-shaped nanomotors and passive tracer particles, PNAS 2013, 110(44), 17744-17749
9. W. Wang, T.-Y. Chiang, D. Velegol*, and T. E. Mallouk*, Understanding the efficiency of autonomous nano- and microscale motors, J. Am. Chem. Soc, 2013, 135(28), 10557-65.
1. Yong Wang, Wendi Duan, Chao Zhou, Qing Liu, Jiahui Gu, Heng Ye, Mingyu Li, Wei Wang* and Xing Ma*. Phoretic Liquid Metal Micro/Nanomotors as Intelligent Filler for Targeted Microwelding. Advanced Materials 2019, 31(51), 1905067. (published on October 30, 2019)
2. Xu, D.; Zhou, C.; Zhan, C.; Wang, Y.; You, Y.; Pan, X.; Jiao, J.; Zhang, R.; Dong, Z.; Wang, W.; Ma, X.*. Enzymatic Micromotors as a Mobile Photosensitizer Platform for Highly Efficient on-Chip Targeted Antibacteria Photodynamic Therapy. Adv. Funct. Mater. 2019, 3, 1807727–11.
3. Mengshi Wei, Chao Zhou, Jinyao Tang and Wei Wang*, Catalytic Micromotors Moving Near Polyelectrolyte-Modified Substrates: The Roles of Surface Charges, Morphology, and Released Ions, ACS Applied Materials & Interfaces, 2018, 10 (3), 2249–2252
4. Bumjin Jang, Wei Wang, Samuel Wiget, Andrew J. Petruska, Xiangzhong Chen, Chengzhi Hu, Ayoung Hong, David Folio, Antoine Ferreira, Salvador Pané*, and Bradley J. Nelson*, Catalytic locomotion of core-shell nanowire motors, ACS Nano, 2016, 10(11), 9983-9991
5. Chang Liu, Chao Zhou, Wei Wang and Hepeng Zhang*, Bimetallic Microswimmers Speed Up in Confining Channels, Physical Review Letters, 2016, 117, 198001
6. E. L. Jewell, W. Wang* and T. E. Mallouk*, Catalytically driven assembly of trisegmented metallic nanorods and polystyrene tracer particles, Soft Matter, 2016, 12(9), 2501-2504.
7. W. Wang; W. Duan; Z. Zhang; M. Sun; A. Sen; T. E. Mallouk*, A tale of two forces: simultaneous chemical and acoustic propulsion of bimetallic micromotors, Chem. Commun. 2015, 51, 1020-1023
8. W. Wang, W. Duan, T.E. Mallouk*, and A. Sen*, Catalytically-powered dynamic assembly of rod-shaped nanomotors and passive tracer particles, PNAS 2013, 110(44), 17744-17749
9. W. Wang, T.-Y. Chiang, D. Velegol*, and T. E. Mallouk*, Understanding the efficiency of autonomous nano- and microscale motors, J. Am. Chem. Soc, 2013, 135(28), 10557-65.
Ultrasound micromotors
1. Ren, Liqiang, Nitesh Nama, Jeffrey M. McNeill, Fernando Soto, Zhifei Yan, Wu Liu, Wei Wang*, Joseph Wang*, and Thomas E. Mallouk*. 3D steerable, acoustically powered microswimmers for single-particle manipulation. Science Advances 2019, 5(10), eaax3084. (published on October 25, 2019)
2 Xu, D.; Cai, F.; Chen, M.; Li, F.; Wang, C.; Meng, L.; Xu, D.; Wang, W.; Wu, J.; Zheng, H. Acoustic Manipulation of Particles in a Cylindrical Cavity: Theoretical and Experimental Study on the Effects of Boundary Conditions. Ultrasonics 2019, 93, 18–25.
3. Chao Zhou, #. Leilei Zhao, #. Mengshi Wei and Wei Wang*, Twists and Turns of Orbiting and Spinning Metallic Microparticles Powered by Megahertz Ultrasound, ACS Nano, 2017, 11 (12), 12668–12676 (published on Nov. 28, 2017)
4. Zeheng Li, Lanjun Bai, Chao Zhou, Xiaohui Yan, Lamar Mair, Anning Zhang, Li Zhang and Wei Wang*, Highly Acid-resistant, Magnetically Steerable Acoustic Micromotors Prepared by Coating Gold Microrods with Fe3O4 Nanoparticles via pH Adjustment, Particle and Particle Systems Characterization, 2017, 34, 1600277 (published on Dec. 19, 2016)
5. Suzanne Ahmed, Wei Wang, Lanjun Bai, Dillon T. Gentekos, Mauricio Hoyos, and Thomas E. Mallouk*, Density and Shape Effects in the Acoustic Propulsion of Bimetallic Nanorod Motors, ACS Nano, 2016, 10(4), 4763-4769
6. W. Wang; W. Duan; Z. Zhang; M. Sun; A. Sen; T. E. Mallouk*, A tale of two forces: simultaneous chemical and acoustic propulsion of bimetallic micromotors, Chem. Commun. 2015, 51, 1020-1023
7. Balk, A. L.; Mair, L. O.; Mathai, P. P.; Patrone, P. N.; Wang, W.; Ahmed, S.; Mallouk, T. E.; Liddle, J. A.; Stavis, S. M.*, Kilohertz Rotation of Nanorods Propelled by Ultrasound, Traced by Microvortex Advection of Nanoparticles, ACS Nano 2014, 8(8), 8300-8309
8. W. Wang, S. Li, L. Mair, S. Ahmed, T. J. Huang*, and T. E. Mallouk*, Acoustic propulsion of nanorod motors inside living cells, Angew. Chem. Int. Ed. 2014, 53(12), 3201-3204.
9. S. Ahmed, W. Wang, L. O. Mair, R. D. Fraleigh, S. Li, L. A. Castro, M. Hoyos, T. J. Huang, and T. E. Mallouk*, Steering Acoustically Propelled Nanowire Motors towards Cells in a Biologically Compatible Environment using Magnetic Fields, Langmuir 2013, 29(52), 16113-16118
10. Y. Chen, X. Ding, S.-C. S. Lin, S. Yang, P.-H. Huang, N. Nama, Y. Zhao, A. A. Nawaz, F. Guo, W. Wang, T. E. Mallouk, and T. J. Huang*, Tunable nanowire patterning using standing surface acoustic waves (SSAW), ACS Nano 2013, 7(4), 3306-3314
11. Wang, W., Castro, L. A., Hoyos, M.*, Mallouk, T. E*, Autonomous motion of metallic microrods propelled by ultrasound, ACS Nano 2012, 6(7), 6122-6132 (ESI Highly Cited Papers)
2 Xu, D.; Cai, F.; Chen, M.; Li, F.; Wang, C.; Meng, L.; Xu, D.; Wang, W.; Wu, J.; Zheng, H. Acoustic Manipulation of Particles in a Cylindrical Cavity: Theoretical and Experimental Study on the Effects of Boundary Conditions. Ultrasonics 2019, 93, 18–25.
3. Chao Zhou, #. Leilei Zhao, #. Mengshi Wei and Wei Wang*, Twists and Turns of Orbiting and Spinning Metallic Microparticles Powered by Megahertz Ultrasound, ACS Nano, 2017, 11 (12), 12668–12676 (published on Nov. 28, 2017)
4. Zeheng Li, Lanjun Bai, Chao Zhou, Xiaohui Yan, Lamar Mair, Anning Zhang, Li Zhang and Wei Wang*, Highly Acid-resistant, Magnetically Steerable Acoustic Micromotors Prepared by Coating Gold Microrods with Fe3O4 Nanoparticles via pH Adjustment, Particle and Particle Systems Characterization, 2017, 34, 1600277 (published on Dec. 19, 2016)
5. Suzanne Ahmed, Wei Wang, Lanjun Bai, Dillon T. Gentekos, Mauricio Hoyos, and Thomas E. Mallouk*, Density and Shape Effects in the Acoustic Propulsion of Bimetallic Nanorod Motors, ACS Nano, 2016, 10(4), 4763-4769
6. W. Wang; W. Duan; Z. Zhang; M. Sun; A. Sen; T. E. Mallouk*, A tale of two forces: simultaneous chemical and acoustic propulsion of bimetallic micromotors, Chem. Commun. 2015, 51, 1020-1023
7. Balk, A. L.; Mair, L. O.; Mathai, P. P.; Patrone, P. N.; Wang, W.; Ahmed, S.; Mallouk, T. E.; Liddle, J. A.; Stavis, S. M.*, Kilohertz Rotation of Nanorods Propelled by Ultrasound, Traced by Microvortex Advection of Nanoparticles, ACS Nano 2014, 8(8), 8300-8309
8. W. Wang, S. Li, L. Mair, S. Ahmed, T. J. Huang*, and T. E. Mallouk*, Acoustic propulsion of nanorod motors inside living cells, Angew. Chem. Int. Ed. 2014, 53(12), 3201-3204.
9. S. Ahmed, W. Wang, L. O. Mair, R. D. Fraleigh, S. Li, L. A. Castro, M. Hoyos, T. J. Huang, and T. E. Mallouk*, Steering Acoustically Propelled Nanowire Motors towards Cells in a Biologically Compatible Environment using Magnetic Fields, Langmuir 2013, 29(52), 16113-16118
10. Y. Chen, X. Ding, S.-C. S. Lin, S. Yang, P.-H. Huang, N. Nama, Y. Zhao, A. A. Nawaz, F. Guo, W. Wang, T. E. Mallouk, and T. J. Huang*, Tunable nanowire patterning using standing surface acoustic waves (SSAW), ACS Nano 2013, 7(4), 3306-3314
11. Wang, W., Castro, L. A., Hoyos, M.*, Mallouk, T. E*, Autonomous motion of metallic microrods propelled by ultrasound, ACS Nano 2012, 6(7), 6122-6132 (ESI Highly Cited Papers)
Magnetic micromotors
We have also dabbled in the field of magnetically powered micromotors. Combining magnetic propulsion with other types of power sources, including chemical fuels, would be an interesting topic for the future.
1. Tianlong Li, Anning Zhang, Guangbin Shao, Mengshi Wei, Bin Guo, Guangyu Zhang*, Longqiu Li * and Wei Wang*, Janus Microdimer Surface Walkers Propelled by Oscillating Magnetic Fields, Advanced Functional Materials, 2018, 28, 1706066
2. L. O. Mair*, B. A. Evans, A. Nacev, P. Y. Stepanov, R. Hilaman, S. Chowdhury, S. Jafari, W. Wang, B. Shapiroe and I. N. Weinberg, Magnetic microkayaks: propulsion of microrods precessing near a surface by kilohertz frequency, rotating magnetic fields, Nanoscale, 2017, 9 (10), 3375-3381 (published on Feb. 17, 2017)
1. Tianlong Li, Anning Zhang, Guangbin Shao, Mengshi Wei, Bin Guo, Guangyu Zhang*, Longqiu Li * and Wei Wang*, Janus Microdimer Surface Walkers Propelled by Oscillating Magnetic Fields, Advanced Functional Materials, 2018, 28, 1706066
2. L. O. Mair*, B. A. Evans, A. Nacev, P. Y. Stepanov, R. Hilaman, S. Chowdhury, S. Jafari, W. Wang, B. Shapiroe and I. N. Weinberg, Magnetic microkayaks: propulsion of microrods precessing near a surface by kilohertz frequency, rotating magnetic fields, Nanoscale, 2017, 9 (10), 3375-3381 (published on Feb. 17, 2017)