Research Interest


Innovative Mechanism and Technology for Nanomanufacturing, Nanomanipulation, and Assembling

Dr.Fan fabricates nanowires, nanorings, nanodiscs, and 3-D nanosuperstructures. She also invented the "electric tweezers" based on the combined AC and DC electric fields. The electric tweezers can transport nanoparticles with independently controlled orientation and transport direction along arbitrary trajectories. Two nanowires (6 mm in length and 300 nm in diameter) with initial separation distance of 180 micrometers can be transported towards each other and connected tip to tip. The precision is at least 300 nm. Nanowires can also rotate seamlessly after transportation. The rotation of the nanowires can be instantly switched on or off with controlled rotation speed (to at least 26000 rpm for a free rotating nanowire), chirality, and total angle of rotation.

  • D. L. Fan, F. Q. Zhu, R. C. Cammarata and C. L. Chien, "Controllable high-speed rotation of metallic nanowires", Phys. Rev. Lett. 94, 247208 (2005).
  • D. L. Fan, R. C. Cammarata and C. L. Chien, "Precision transport and assembling of nanowires in suspension by electric fields", Appl. Phys. Lett. 92, 093115 (2008).
  • D. L. Fan#, Z. Z. Yin#, R. Cheung, F. Q. Zhu, A. Levchenko, R. C. Cammarata, C. L. Chien and A. Levchenko, "Sub-cellular resolution delivery of a cytokine via precisely manipulated nanowires", Nature Nanotechnology, 5, 545, (2010).(link)
  • D. L. Fan*, F. Q. Zhu, R. C. Cammarata* and C. L. Chien, "Electric Tweezers", Nano Today, 6, 339 (2011) (Invited article).(link)
  • D. L. Fan*, F. Q. Zhu, X. B. Xu, R. C. Cammarata and C. L. Chien*, "Electronic Properties of Nanoentities Revealed by Mechanical Motion" The Proceedings of the National Academy of Sciences, 109, 93099313 (2012)(link).(direct submission without prearranged editors)
  • F.Q. Zhu, D. L. Fan, X. C. Zhu, J. G. Zhu, R. C. Cammarata and C. L. Chien, "Arrays of magnetic nanorings with ultrahigh areal densities", Advanced Materials, 16, 2155 (2004).
  • Jianhe Guo, Andrew Chan, Weigu Li, and D. L. Fan*, "Kirkendall Effect in Creating Three-Dimensional Metal Catalysts for Hierarchically Porous Ultrathin Graphite with Unique Properties", Chemistry of Materials, 29, 49914998 (2017) DOI: 10.1021/acs.chemmater.7b01518 (link).
  • C. L. Chien, D. L. Fan, and Robert C. Cammarata, "System and Method for Precision transport, Positioning, and Assembling of Longitudinal Nano-structures " (two patents granted, 9,044,808 B2, 2015 and 9,718,683, 2017)
  • Su Chi, R. C. Cammarata, C. L. Chien, Donglei Fan, Stephen Farias, and Danru Qum "Systems and Methods for Separating Metallic and Nonmetallic Particles in a Mixed-Particle Suspension " (patent granted, 9,751,091 September, 2017)
  • Nanohealth: plasmonics, plasmonic enhanced energy transfer and optical detection, hybrid plasmonic nanomechanical devices

    (1) Sensing, Surface Enhanced Raman Scattering, plasmonic-semiconductor nanoparticle hybrid, plasmonic-photonic devices; (2) plasmonic enhanced energy transfer (3) plasmonic NEMS/nanomotors for precision and controllable drug/gene releasing and delivery

  • D. L. Fan#, Z. Z. Yin#, R. Cheung, F. Q. Zhu, A. Levchenko, R. C. Cammarata, C. L. Chien and A. Levchenko, "Sub-cellular resolution delivery of a cytokine via precisely manipulated nanowires", Nature Nanotechnology, 5, 545, (2010).(link)
  • X. B. Xu#, Dihan Hasan#,Lei Wang#, Swapnajit Chakravarty, Ray T. Chen, D. L. Fan* and Alan X. Wang*, " Guided-Mode-Resonance-Coupled Plasmonic-Active SiO2 Nanotubes for Surface Enhanced Raman Spectroscopy", Applied Physics Letters, 100, 191114 (2012).(link)
  • X. B. Xu, K. Kim, H. Li, D. L. Fan*, " Ordered Arrays of Raman Nanosensors for Ultrasensitive and Location Predictable Biochemical Detection ", Advanced Materials, 24, 5457 (2012).(link).(Ranked top 40 most accessed articles for August 16 andfeatured on the backcover of the journal)
  • X. B. Xu, H. Li, Dihan Hasan, R. Ruoff, A. X. Wang and D. L. Fan*, "Near-Field Enhanced Magnetic Plasmonic Bifunctional Nanotubes for Single Cell Bioanalysis", Advanced Functional Materials, 23, 4332-4338 (2013)(link)(featured on the front cover and selected for Wiley-VCH's hot topics).
  • X. B. Xu, K. Kim and D. L. Fan*, "Tunable Release of Multiplex Biochemicals by Plasmonically-Active Rotary Nanomotors", Angewandte Chemie International Edition, 54, 25252529, (2015) DOI: 10.1002/ange.201410754 (link).
  • Weigu Li, Jianhe Guo, and D. L. Fan*, "Three-Dimensional Graphite-Polymer Flexible Strain Sensors with Ultrasensitivity and Durability for Real-Time Human Vital Sign Monitoring and Musical Instrument Education", Advanced Materials Technologies, 2, 1700070 (2017) DOI: 10.1002/admt.201700070 (link). (featured on the front cover)
  • C. Liu#, Z. Wang#, E. Li, X. Liang, S. Chakravarty, X C. Xu, A. X. Wang*, Ray T. Chen* and D. L. Fan*, "Electrokinetic-Manipulation Integrated Plasmonic-Photonic Hybrid Raman Nanosensors with Dually Enhanced Sensitivity", ACS Sensors, 2, 346353 (2017) (link) (featured on the front cover).
  • D. L. Fan, and X. B. Xu, "Plasmonic-Magnetic Bifunctional Nanotubes for Biological Applications " (patent granted, 9,638,639, May, 2017)
  • D. L. Fan, W. G. Li, and J. H. Guo "Stretchable Strain Sensors" (provisional US patent, 62/384,378, September, 2016)
  • Micro/Nano Electromechanical System (MEMS/NEMS) Devices, Nanomotors, Nanorobotics

    Bottom-up assembling of NEMS devices for electronics and biomedical applications

  • K. Kim#, X. B. Xu#, J. H. Guo# and D. L. Fan*, " Ultrahigh-Speed Rotating Nanoelectromechanical System Devices Assembled from Nanoscale Building Blocks", Nature Communications, 5, 3632 (link)(2014). Selected as the #3 of "10 discoveries that will shape the future in 2014" by British Broadcasting Corporation (BBC) Focus magazine.
  • X. B. Xu#, C. Liu#, K. Kim and D. L. Fan*, " Electric driven rotation of silion nanowires and silicon nanowire motors ", Advanced Functional Materials, 24, 48434850 (2014) (link) (2014).
  • X. B. Xu, K. Kim and D. L. Fan*, "Tunable Release of Multiplex Biochemicals by Plasmonically-Active Rotary Nanomotors", Angewandte Chemie International Edition, 54, 25252529 (2015) (link).
  • K. Kim, J. H. Guo, X. B. Xu and D. L. Fan*, " Micromotors with Step-Motor Characteristics by Controlled Magnetic Interactions among Assembled Components", ACS Nano, 9, 548554 (2015).(link).
  • K. Kim, J. H. Guo, X. B. Xu and D. L. Fan*, "Recent Progress on Man-Made Inorganic Nanomachines", Small, 11, 4037 (2015).(link) (invited review)
  • J. H. Guo, K. Kim and D. L. Fan*,"Ultra-Durable Rotary Nanomotors Assembled from Nanoentities by Electric Fields", Nanoscale, 7, 11363-11370 (2015) (link) (2015).
  • K. Kim, F. Zhu, and D. L. Fan*, "Innovative Mechanism for Precision Assembling and Actuation of Arrays of Nanowire Oscillators ", ACS Nano, 7, 34763483 (2013) (link).
  • D. L. Fan*, F. Q. Zhu, R. C. Cammarata* and C. L. Chien, "Electric Tweezers", Nano Today, 6, 339 (2011) (Invited article).(link)
  • D. L. Fan, R. C. Cammarata and C. L. Chien, "Precision transport and assembling of nanowires in suspension by electric fields", Appl. Phys. Lett. 92, 093115 (2008).
  • D. L. Fan, F. Q. Zhu, R. C. Cammarata and C. L. Chien, "Controllable high-speed rotation of metallic nanowires", Phys. Rev. Lett. 94, 247208 (2005).
  • D. L. Fan, K. Kim, and J. H. Guo "Electrode Design and a Low-Cost Fabrication Method for Assembling and Actuation of Nanomotors with Ultrahigh and Uniform Speed" (provisional PCT patent, 62047969, September, 2014)
  • Energy Storage and Conversion Devices

    Investigation of innovative paradigms and general routes for synthesis of highly porous 3-D nanostructures for applications in solar-assisted water splitting, supercapacitors, and various other devices.

  • C. Liu, X. B. Xu, Alex Rettie, C. Mullins and D. L. Fan*, " One-step Waferscale Synthesis of 3-D ZnO Nanosuperstructures by Designed Catalysts for Substantial Improvement of Solar Water Oxidation Efficiency ", Journal of Materials Chemistry A, 1 , 8111- 8117 (2013) (link) (Featured on the front cover)
  • X. B. Xu, M. Wu, M. Asoro, P. Ferreira and D. L. Fan*, "One-Step Hydrothermal Synthesis of Comb-like ZnO Nanostructures ", Crystal Growth and Design, 12, 4829 (2012).(link).
  • J. Ning#, X. B. Xu#, C. Liu and D. L. Fan*, " Three-Dimensional Multilevel Porous Thin Graphite Nanosuperstructures for Ni(OH)2-based Energy Storage Devices", Journal of Materials Chemistry A 2, 15768-15773 (2014) (link). (Featured on the inside front cover)
  • Longjun Li, Chao Liu, Guang He, D. L. Fan, and Arumugam Manthiram, "Design of Hierarchical Pore-in-Pore and Wire-in-Wire Catalysts for Rechargeable Hybrid Li-air Batteries with Ultra-long Cycle Life and High Cell Efficiency", Energy & Environmental Science, 8, 3274- 3282 (2015) (link).
  • Jianhe Guo, Andrew Chan, Weigu Li, and D. L. Fan*, "Kirkendall Effect in Creating Three-Dimensional Metal Catalysts for Hierarchically Porous Ultrathin Graphite with Unique Properties", Chemistry of Materials, 29, 49914998 (2017) DOI: 10.1021/acs.chemmater.7b01518 (link).
  • W. G. Li, X. B. Xu, C. Liu, M. Tekell, J. Ning, J. H. Guo, J. C. Zhang, and D. L. Fan*, "Ultralight and Binder-Free All-Solid-State Flexible Supercapacitors for Powering Wearable Strain Sensors", Advanced Functional Materials, 27, 1702738, (2017) DOI: 10.1002/adfm.201702738 (link) (featured on the inside back cover).
  • D. L. Fan, J. Ning, X. B. Xu, and J. H. Guo "Method for Manufacturing of Three-Dimentional Free Standing Porous Thin-Graphite with Hierarchical Porosity" (provisional US patent, 14/296,134, June, 2014)
  • W. G. Li and D. L. Fan "Dendritic Materials with Hierarchical Porosity" (provisional patent, 62/468,603, March, 2017)
  • Highlights