功能纳米与软物质研究院学术报告:Scalable 2D/3D Nanolithography & Multifunctional Micromotors

报告人:Dr. Xiaobin Xu-许晓斌 (Chemistry and Biochemistry/Prof. Paul Weiss’s Group, University of California, Los Angeles (UCLA))
报告题目:Scalable 2D/3D Nanolithography & Multifunctional Micromotors
报告时间:9:30 AM, Dec 26th
报告地点:909-B

摘要
Scalable nanolithography: Through precisely tuning the nanometer scale deformation of the soft stamps and in combination with the latest chemical lift-off lithography developed in our group, we developed polymer pen chemical lift-off lithography and self-collapse lithography. Based on which, sub-20 nm resolution surface chemical patterning can be realized at high throughput.  Multiple-patterning nanosphere lithography was developed to scalable fabricate fully tunable three-dimensional nanostructures at a resolution of 50 nm. Micromotors: Using the “electric tweezers”, micromotors with precisely controlled mechanical motions including movement, rotation, and assembling were developed. Multi-functional nanomotors were further developed as a prototype of future biomedical nanorobots, which can actively assemble into ordered arrays, do single-molecule level sensing and delivery to designated single cells for bioanalysis, and tunable release molecules at designated location.

个人简历

Education
2015 to present, Postdoc, Prof. Paul S. Weiss’ Group, California NanoSystems Institute, UCLA, Los AngelesCA, USA
2014, PhD in Materials Science & Engineering, The University of Texas at Austin, TX, USA
2010, MS, Materials Science & Engineering,Zhejiang University, China
2007, BS, Materials Science & Engineering,Zhejiang University, China

Research Interests
Bioinspired nanomaterials, scalable nanomanufacturing, nanorobotics, high-throughput intracellular delivery, biosensors, and healthcare wearables

Research Experience
2015 - Present, Postdoc, Supervisor: Prof. Paul S. Weiss, UCLA
a.Developed scalable 2D nanoscale chemical patterning approaches including polymer-pen chemical lift-off lithography and self-collapse lithography (sub-20 nm resolution).
b.Developed multiple-patterning nanosphere lithography for scalable 3D patterning with sub-50 nm resolution.
c.Developing nanostructure based platforms for rapid and high-throughput intracellular gene delivery.

2010 - 2014, Graduate Research Assistant, Supervisor: Prof. Donglei Fan, UT-Austin
a.Designed, fabricated ultrasensitive surface-enhanced Raman scattering (SERS) nanomotor sensors and applied for: location predicable biochemical detection, single-cell bioanalysis, controllable biochemical release and real-time detection.
b.Developed electric-filed-driven nanowire motors with a world record in the rotation speed and duration.
c.Designed and fabricated multi-level porous graphite foams for flexible and high performance supercapacitors, batteries, and strain sensors.

Teaching Experience
Teaching assistant: ME 111L Materials Engineering Lab
Teaching assistant: ME 136L Materials Processing Lab
Mentoring experience: I mentored 8 graduate students, and 4 undergraduate students, and two high school students from 2010 to 2017 on multiple research projects.  

Service
Reviewer: Scientific Reports, Nanoscale, Nanotechnology, CrystEngComm, PhysicalChemistryChemical Physics, RSC Advances, Thin Solid Films, and many others
Technical Program Committee: Global Conference on Polymer and Composite Materials, Ningbo, China (2014-2016)
Member of American Chemical Society (ACS) & Materials Research Society (MRS)

Honors and Awards
ACS UCLA Research Showcase Fellowship, UCLA (2017)
Nanomotor work was featured on NBC Learn 'Nanotechnology: Super Small Science' (2016)
Finalist of South by Southwest (SXSW) Interactive Innovation Award, Austin, TX (2015)
Materials Research Society (MRS) Graduate Student Silver Award, San Francisco, CA      (2014)
Chinese Government Award for Outstanding Self-Financed Students Abroad (2014)
Best Presentation Award, Nano Portfolio Program Student Presentations (2014)
Graduate Student Professional Development Award, UT-Austin (2013)
Nano Portfolio Program Travel Award, UT-Austin (2014)
Best Poster Award, Texas Materials Institute competition, UT-Austin (2013 & 2014)
Outstanding Graduate Award, Zhejiang University, China (2010)
First-Class Award of Honor for Graduate, Zhejiang University, China (2008-2009)
Graduate of Merit, Zhejiang University, China (2008-2009)

Publications (Citation > 890 times; Google Scholar Citations, 10/2017)
2017 

27.X. Xu, Q. Yang, N. Wattanatorn, C. Zhao, S. J. Jonas, and P. S. Weiss, Multiple-Patterning Nanosphere Lithography for Periodic 3D Hierarchical Nanostructures, ACS Nano, ASAP DOI:10.1021/acsnano.7b05472 (2017) 

Will be featured on Journal Cover (October 2017) 

28.X. Xu#, Q. Yang#, K. M. Cheung, C. Zhao, N. Wattanatorn, J. N. Belling, J. M. Abendroth, L.S. Slaughter, C. A. Mirkin, A. M. Andrews, and P. S. Weiss, Polymer Pen Chemical Lift-Off Lithography, Nano Letters, 17, 3302 (2017) 

26.X. Xu, S. Hou, N. Wattanatorn, F. Wang, Q. Yang, C. Zhao, X. Yu, H.-R. Tseng, S. J. Jonas, and Paul S. Weiss, Precision Medicine at Subcellular Resolution: Guided Nanospears for Targeted and High-throughput Intracellular Gene Delivery, to be submitted (2017) 

25.C. Zhao, X. Xu, Q. Yang, S. J. Jonas, A. M. Andrews, and P. S. Weiss, Self-Collapse Lithography, Nano Letters, 17, 5035 (2017)
W. Li, X. Xu, J. Ning, J. Guo,  J. Zhang and D. L. Fan, Ultralight, Binder Free, Freestanding, and Multi-Level Porous Graphite/Mn3O4 Electrode for High Performance Supercapacitors, Advanced Functional  Materials, in press, DOI: 10.1002/adfm.201702738 (2017)
Will be featured on Journal Cover 

23.H. Sun, X. Xu, Z. Yan, X. Cheng, F. Chen, P. S. Weiss, and J. Chen. Porous Multishelled Ni2P Hollow Microspheres as Active Bifunctional Electrocatalysts for Hydrogen and Oxygen Evolution, Chemistry of Materials, 29, 8539 (2017) 

22.N. Nakatsuka, K.-A Yang, X. Xu, J. M. Abendroth, C. Zhao, Y. S. Rim, Y. Yang, M. Stojanovic, P. S. Weiss, and A. M. Andrews, Aptamer Field-Effect Transistors As Neurochemical Sensors To Monitor Neurotransmitters in Vivo, in revision for Science (2017)

2016
21.C. Liu, X. Xu, and D. L. Fan, Rational Synthesis of Three Dimensional Nanosuperstructures for Applications in Energy Storage and Conversion Device, IEEE-Transactions on Device and Materials Reliability PP, 1 (2016) (Invited Review)

2015
20.X. Xu, K. Kim and D. L. Fan, Ultrasensitive Robotized Plasmonic Nanosensors for Biomedical Detection with Raman Scattering review paper, Sensors, 15, 10422 (2015)

19.K. Kim, J. H. Guo, X. Xu and D. L. Fan, Recent Progress on Man-Made Inorganic Nanomachines, Small 11, 4027 (2015)(Invited Review)

18.K. Kim, J. H. Guo, X. Xu and D. L. Fan, Micromotors with Setp-Motor Characteristics by Controlled Magnetic Interactions among Assembled Components, ACS Nano, 9, 548 (2015)

17.C. Liu, X. Xu and D. L. Fan, Electric-Field Enhanced Molecule Detection in Suspension on Assembled Plasmonic Arrays by Raman Spectroscopy, ASME-Journal of Nanotechnology in Engineering and Medicine,5, 040906 (2015)

2014
16.K. Kim#, X. Xu#, J. Guo# and D. L. Fan, Ultrahigh-Speed Rotating Nanoelectromechanical System (NEMS) Devices Assembled from Nanoscale Building Blocks, Nature Communications, 5, 3632 (2014)

15.X. Xu, K. Kim and D. L. Fan, Tunable Release of Multiplex Biochemicals by Plasmonic Active Rotary Nanomotors, Angewandte Chemie,54, 2525 (2014)

14.X. Xu#, C. Liu#, K. Kim and D. L. Fan, Electric-Driven Rotation of Silicon Nanowires and Silicon Nanowires, Advanced Functional Materials,24, 4843 (2014)

13.J. Ning#, X. 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 (2014)
Featured on Journal Cover

2013
12.X. Xu, H. Li, D. 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 (2013)
Featured on Journal Cover

11.C. Liu, X. Xu, Alex Rettie, C. Mullins and D. L. Fan, Rational One-Step Synthesis of 3-D ZnO Nanosuperstructures by Engineered Catalysts for Substantial Improvement of Solar Water Oxidation Efficiency, Journal of Materials Chemistry A, 1, 8111 (2013)
Featured on Journal Cover

2012
10.X. Xu, K. Kim, H. Li, D. L. Fan, Ordered Arrays of Raman Nanosensors for Ultrasensitive and Location Predictable Biochemical Detection, Advanced Materials, 24, 5516 (2012)
Reported by NBC Learn 'Nanotechnology: Super Small Science'
Featured on Journal Cover

9.X. Xu#, D. Hasan#, L. Wang#, S. Chakravarty, R. T. Chen, D. L. Fan and A. X. Wang, Guided-Mode-Resonance-Coupled Plasmonic-Active SiO2 Nanotubes for Surface Enhanced Raman Spectroscopy, Applied Physics Letters, 100, 191114 (2012)

8.X. 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)

7.D. L. Fan, F. Q. Zhu, X. Xu, R. C. Cammarata and C. L. Chien, Electronic Properties of Nanoentities Revealed by Mechanical Motion, Proceedings of the National Academy of Science U. S. A.,109, 9309 (2012)

6.A. X. Wang, R. T. Chen, and D. L. Fan, C. Lin, X. Xu, L. Wang, Ultra-Efficient Nano-Photonic Devices using Hybrid Material Systems for Optical Communication and Sensing, Avionics, IEEE, AVFOP 2012(2012)

2011
5.C. Wang, P. S. Tang, M. Y. Ge, X. Xu, F. Cao and J. Z. Jiang, Synthesis and Characterization of Gold Cubic Nanoshells Using Water-Soluble GeO2 templates, Nanotechnology, 22, 155706 (2011)

2010
4.C. Wang, Y. Zhou, M. Ge, X. Xu, Z. Zhao and J. Z. Jiang, Large-Scale Synthesis of SnO2Nanosheets with High Lithium Storage Capacity, Journal of the American Chemical Society,132, 46 (2010)

3.M.Y. Ge, L. Y. Han, U. Wiedwald, X. Xu, C. Wang, K. Kuepper, P. Ziemann and J. Z. Jiang, Monodispersed NiO Nanoflowers with Anomalous Magnetic Behavior, Nanotechnology, 21, 425702 (2010)

2009
2.X. Xu, M. Ge, C. Wang and J. Z. Jiang, High Temperature Stable Monodisperse Superparamagnetic Core-Shell Iron-Oxide@SnO2Nanoparticles, Applied Physics Letters, 95, 183112 (2009)

1.X. Xu, M. Ge, K. St?hl and J. Z. Jiang, Growth Mechanism of Cross-like SnO Structure Synthesized by Thermal Decomposition, Chemical Physics Letters, 482, 287 (2009)    

Conference Presentations
13.X. Xu, Q. Yang, K. M. Cheung, C. Zhao, N. Wattanatorn, J. N. Belling, J. M. Abendroth, L.S. Slaughter, C. A. Mirkin, A. M. Andrews, and P. S. Weiss. Polymer Pen Chemical Lift-Off Lithography, ACS National Meeting & Exposition, San Francisco, CA (2017)

12.N. Nakatsuka, K.-A Yang, Y. S. Rim, X. Xu, J. M. Abendroth, C. Zhao, Y. Yang, M. Stojanovic, P. S. Weiss, and A. M. Andrews, Aptamer Field-Effect Transistors As Neurochemical Sensors To Monitor Neurotransmitters in Vivo,  ACS National Meeting & Exposition, San Francisco, CA (2017)

11.X. Xu, K. Kim and D. L. Fan, Plasmonic Rotary Nanomotors for Controlled Biochemical Release and Detection with Raman Spectroscopy, MRS Spring Meeting & Exhibit, San Francisco, CA (2014)

10.J. Ning, X. Xu, C. Liu and D. L. Fan, Free Standing Three-Dimensional Porous Graphite/Ni(OH)2 Foam for Supercapacitors MRS Spring Meeting & Exhibit, San Francisco, CA (2014)

9.J. Ning, X. Xu, C. Liu and D. L. Fan, Three Dimensional Graphene/Graphite Structures Templated on Engineered Highly Porous Ni/Cu Foams, NanoTechnology for Defense Conference, Tucson, AZ (2013)

8.D. L. Fan and X. Xu, Ultrasensitive Surface Enhanced Raman Scattering (SERS) Nanomotor Sensors, Energy Materials Nanotechnology Spring Meeting, Orlando, FL (2013)

X.  Xu, K. Kim and D. L. Fan, Plasmonic Rotary Nanomotors for Controlled Biochemical Release and Detection with Raman Spectroscopy, NanoTechnology for Defense Conference, Tucson, AZ (2013)

6.C. Liu, X. Xu, A. Rettie, C. Mullin and D. L. Fan, One-Step Waferscale Synthesis of 3-D Highly Branched Semiconductor Nanoarchitectures by Designed Chemical Catalysts for Substantial Improvement of Solar Water Oxidation E?ciency, NanoTechnology for Defense Conference, Tucson, AZ (2013)

5.X. Xu, H. F. Li, R. S. Ruoff, A. X. Wang, D. L. Fan, Bifunctional Nanotubes for Single Cell Sensing, MRS Fall Meeting & Exhibit, Boston, MA (2012)

4.C. Liu, X. Xu, A. Rettie, C. Mullin and D. L. Fan, Rational One-Step Synthesis of Three-Dimensional ZnO Nanosuperstructures by Engineered Catalysts for 150% Improvement of Solar Water Splitting,MRS Fall Meeting & Exhibit, Boston, MA (2012)

3.X. Xu, M. Wu, M. Asoro, C. Liu, H. P. He, P. Ferreira and D. L. Fan, Facile Synthesis of ZnO Superstructures Assisted by One-Dimensional Catalysts, MRS Fall Meeting & Exhibit, Boston, MA (2011)

2.X. Xu, K. Kim and D. L. Fan, Determining Metallicity of Nanowires via Their Mechanical Motions in Electric Fields, MRS Fall Meeting & Exhibit, Boston, MA (2011)

1.X. Xu, H. F. Li, K. Kim, R. S. Ruoff, A. Wang, D. L. Fan, Ordered Arrays of Plasmonic Magnetic Nanotubes For Single Molecular Biosensing,MRS Fall Meeting & Exhibit, Boston, MA (2011)

Patents
7.D. L. Fan, J. Ning, and X. Xu, Facile Manufacturing of Three-Dimensional Freestanding Porous Thin-Graphite with Hierarchical Porosity, Provisional US patent, 14/296, 134 (2014)

6.D. L. Fan and X. Xu, Plasmonic-Magnetic Bifunctional Nanotubes for Biological Applications, US patent, Application No. 20140356411

5.J. Z. Jiang, X. Xu, M. Ge and C. Wang, A Method to Synthesize High Temperature Stable Superparamagnetic SnO2 Coated Iron-Oxide Nanomaterials, CN101707134A

6.J. Z. Jiang, X. Xu, M. Ge and C. Wang, A Thermal Decomposition Method to Synthesize Cross-Like SnO Nanomaterials, CN101704548A

3.J. Z. Jiang, C. Wang, M. Ge and X. Xu, A Hydrothermal Method to Synthesize Flowerlike Structure SnO2 Nanomaterials, CN101693552B

2.J. Z. Jiang, C. Wang, M. Ge and X. Xu, A Wet-Chemistry Method to Synthesize Hollow Nanostructured Materials, CN101708554A

1.J.Z. Jiang, M. Ge, H.P. Wu, X. Xu and C. Wang, A Thermal Decomposition Method to Synthesize Single Crystalline Ge Nanowires, CN101158050A

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