University of California at Berkeley and Lawrence Berkeley National Laboratory

2 ARTICLES PUBLISHED IN JoVE

Engineering

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities

Han Sae Jung^1,2, Hsin-Zon Tsai¹, Dillon Wong¹, Chad Germany¹, Salman Kahn¹, Youngkyou Kim^1,3, Andrew S. Aikawa¹, Dhruv K. Desai¹, Griffin F. Rodgers¹, Aaron J. Bradley¹, Jairo Velasco Jr.¹, Kenji Watanabe⁴, Takashi Taniguchi⁴, Feng Wang^1,5,6, Alex Zettl^1,5,6, Michael F. Crommie^1,5,6

¹Department of Physics, University of California at Berkeley, ²Department of Chemistry, University of California at Berkeley, ³Department of Chemical and Biomolecular Engineering, University of California at Berkeley, ⁴National Institute for Materials Science (Japan), ⁵Materials Sciences Division, Lawrence Berkeley National Laboratory, ⁶Kavli Energy NanoSciences Institute, University of California at Berkeley and Lawrence Berkeley National Laboratory

This paper details the fabrication process of a gate-tunable graphene device, decorated with Coulomb impurities for scanning tunneling microscopy studies. Mapping the spatially dependent electronic structure of graphene in the presence of charged impurities unveils the unique behavior of its relativistic charge carriers in response to a local Coulomb potential.

Medicine

Real-Time Dynamic Navigation System for the Precise Quad-Zygomatic Implant Placement in a Patient with a Severely Atrophic Maxilla

Yihan Shen^*1, Qinggang Dai^*1, Baoxin Tao^*1, Wei Huang², Feng Wang², Kengliang Lan¹, Yuanyuan Sun¹, Xiaowan Ling¹, Lijun Yan¹, Yueping Wang¹, Yiqun Wu¹

¹The 2nd Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, ²Department of Dental Implantology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology

Here, we present a protocol to achieve precise quad-zygomatic implant placement in patients with severely atrophic maxilla using a real-time dynamic navigation system.