Monash大学陈文龙教授学术报告

发布者：系统管理员发布时间：2014-12-11浏览次数：146

Monash大学陈文龙教授来实验室访问并作学术报告 

报 告 人：陈文龙教授

报告时间：12月15日上午10:00

报告地点：国家重点实验室三楼会议室

报告题目：SOFT META NANOPARTICLES: FROM DESIGN TO APPLICATIONS

 

Wenlong ChengNanobionics Research Laboratory, Monash University, Clayton, Victoria 3800 Australia

Melbourne Centre for Nanofabrication, Clayton Victoria 3800

Email: wenlong.cheng@monash.edu; Website: http://users.monash.edu.au/~wenlongc/

“Hard” microelectronics and “soft” biology play with different materials by different rules but they meet at the nanoscale. Interfacing of nanoscale ‘hard’ inorganic building blocks (metallic nanoparticles, quantum dots, carbon nanotubes, etc.) with nanoscale ‘soft’ organic building blocks (DNA, RNA, polymer, etc), provides an ideal platform to develop powerful nanobionic materials that possess both “nano” and “bio” functions for novel applications in optoelectronics and biology.

In this talk, I will discuss our recent research activities in interfacing hard metallic nanoparticles with soft ligands, particularly on organically-capped metal nanoparticles using DNA, polymer and alkyl molecules as capping ligands. We have successfully applied such soft ‘meta-atoms’ to three major directions: (1) assembling soft plasmonic nanoparticle superlattice sheets; (2) fabricating soft elastic conductors (electronic skins); (2) DNA aptamer-targeted and light-controlled drug delivery.

Firstly, I will describe synthesis of soft ‘meta-atoms’ using nanospheres, nanorods, nanocages, nanocubes, and nanowires)1. Secondly, I will discuss how we manipulate the notoriously-difficult-to-manipulate ‘meta-atoms’ to form free-standing thinnest possible superlattice nanosheets (plasmene sheets)2-3 . Thirdly, I will discuss our recent success in fabricating wearable e-Skin sensors using ultrathin gold nanowires4-5 . Finally, I will describe our newest development in DNA aptamer-functionalised gold nanorods and caged gold nanorods for targeted and light-controlled drug delivery.

References

  1. Shawn, J. Tan, Michael J. Campolongo, Dan Luo and Wenlong Cheng*, Building Plasmonic Nanostructures with DNA. Nature Nanotechnology 2011, 6, 268-276.
  2. Wenlong Cheng, Michael J. Campolongo, Judy J. Cha, Shawn J. Tan, Christopher C. Umbach, David A. Muller, and Dan Luo, Free-Standing Nanoparticle Superlattice Sheets Controlled by DNA. Nature Materials, 2009, 8, 519-525.
  3. Khee Chaw Ng, Indika B. Udagedara, Ivan D. Rukhlenko, Yi Chen, Yue Tang, Malin Premaratne, and Wenlong Cheng*, Free-Standing Plasmonic-Nanorod Superlattice Sheets. ACS Nano 2012, 6, 925-934.
  4. Yi Chen, Zi Ouyang, Min Gu and Wenlong Cheng*, Mechanically Strong, Optically Transparent, Giant Metal Superlattice Nanomembranes From Ultrathin Gold Nanowires. Advanced Materials 2013, 25, 80-85.
  5. Shu Gong, Willem Schwalb, Yongwei Wang, Yi Chen, Yue Tang, Jye Si, Bijan Shirinzadeh and Wenlong Cheng*, A wearable and highly sensitive pressure sensor with ultrathin gold nanowires. Nature Communications, 2014, 5, 3132.

Biography

Wenlong Cheng is a full professor in the Department of Chemical Engineering at Monash University, Australia. He earned his PhD from Chinese Academy of Sciences in 2005 and his BS from Jilin University, China in 1999. He held positions in the Max Planck Institute of Microstructure Physics and the Department of Biological and Environmental Engineering of Cornell University before joining the Monash University in 2010. His research interest lies at the Nano-Bio Interface, particularly addressing plasmonic nanomaterials, DNA nanotechnology, nanoparticle anticancer theranostics and electronic skins. He has published 55 papers including 3 in Nature Nano, 1 in Nature Materials and 1 in Nature Communications.