北京時間12月11日晚8點，大家期待已久的 iCANX Talks第三十五期即將重磅來襲，本次邀請了國內外三位頂尖學者為大家帶來最新科研成果。他們分別是來自香港城市大學的于欣格教授和來自清華大學的盛興教授，以及來自英國倫敦大學學院的徐楊教授。于欣格教授將為大家帶來皮膚集成傳感器和觸覺反饋界面在VR/AR中的應用的精彩報告，盛興教授將給大家介紹面向新型神經接口的植入式微納光電器件的最新研究進展，徐楊教授將給大家介紹新興能源存儲技術中的的納米離子學的最新進展。
The highly expected iCANX TalksVol.35will be ceremoniously holedat 8:00 pm of December 11(Beijing time).This time, three top scholars were invited to bring you the latest scientific research reports. They areprofessor Xinge Yu from City University of Hong Kong and professor Xing Sheng from Tsinghua University. And the professor Yang Xu from University College London,UK.The professor Xinge Yu will bring you the latest research progress inSkin-Integrated Sensors and Haptic Interfaces for VR and AR.And the professor Xing Sheng will present the latest progress inImplantable Optoelectronic Devices for Advanced Neural Interfaces. Professor Yang Xu will present the latest progress inNanoionics in merging energy storage technologies.
在前34期的iCANXTalks直播中，每一期都吸引了全球三十餘萬人觀看直播，累計收看觀眾已經近千萬人次，受到了國內外專家學者的普遍好評和追捧，目前，iCANX Talks已經成為極具國際影響力的高科技雲端學術峰會。
In the previous 34 weeks iCANX talks, it totally attracted close to 10 million audiences worldwide. iCANX has been highlighted by experts and audiences globally. Now, iCANX Talks already becomes a well-known and popular international high-tech online event.
話不多說，先讓小艾給大家詳細介紹三位重磅嘉賓及演講內容吧！
Here comes the three abstracts & Bios of this Friday’s iCANX Talks!
Talk 1
Skin-Integrated Sensors and Haptic Interfaces for VR and AR
皮膚集成傳感器和觸覺反饋界面在VR/AR中的應用
Xinge Yu
于欣格
City University of Hong Kong
香港城市大學
Abstract
Technologies for virtual and augmented reality (VR and AR) create human experiences through visual and auditory stimuli that replicate sensations associated with the physical world. The most widespread VR/AR systems use head-mounted displays, accelerometers and speakers as the basis for three-dimensional, computer-generated environments that can exist in isolation or as overlays with actual scenery. By comparison to the eyes and the ears, the skin is a relatively underexplored sensory interface for VR/AR technology that could, nevertheless, greatly enhance experiences, at a qualitative level, with direct relevance in areas ranging from communications and social media, to gaming, entertainment and prosthetics technology. Here we present materials, device structures, power delivery strategies and communication schemes as the basis for a wireless, battery-free platform of electronic systems and haptic interfaces capable of softly laminating onto the skin to communicate information via spatio-temporally programmable patterns of localized mechanical vibrations. The resulting technology, which we refer as epidermal VR, creates many opportunities where the skin provides an electronically programmable communication and sensory input channel to the body, as demonstrated through example applications in social media/personal engagement, prosthetic control/feedback and gaming/entertainment.
虛擬實境（VR）和增強現實（AR）的技術是通過模擬外界的諸如聲音和視覺刺激，並複製呈現給人體的感受器官實現虛擬的「真實」體驗。目前廣為人們熟知和認識的VR/AR是基於頭戴式眼鏡的3D立體成像技術加上一定的聲音效果。除了視覺和聽覺意外，針對人體皮膚的觸覺感受的開發缺非常少。觸覺在VR/AR中可以更為真實的提供虛擬實境的體驗複製，從而可以用於諸如社交媒體、遊戲裝備、娛樂、和假肢的控制與傳感等領域的諸多應用，因此有著非常重要的意義。報告將涉及新型基於無線控制、無電池驅動、皮膚集成的傳感與觸覺反饋界面的VR/AR技術。這種新型的VR/AR電子皮膚通過先進功能材料的選擇，工程力學的設計、電子電路的優化、軟硬體的協同與交互從而實現系統級別的集成，把此類技術擴展至4維甚至5維，實現觸覺的反饋與控制。
Biography
Dr Xinge Yu is currently an Assistant Professor of Biomedical Engineering at City University of Hong Kong (CityU). Xinge Yu got his bachelor degree form University of electronics Science and Technology of China (UESCT) in 2009 and conducted his Ph.D. research in printable flexible electronics at Northwestern University and received his Ph.D. degree in Optical Engineering from UESTC in 2015. From 2015 to 2018, Xinge Yu was a postdoctoral research associate at Northwestern University and University of Illinois at Urbana-Champaign, where he was working on flexible bio-electronics. Now Xinge Yu’s research group is focusing on skin-integrated electronics and systems for biomedical applications. He has published over 70 papers in the top journals, such as Nature, Nature Materials, Nature Biomedical Engineering, Nature Communications, PNAS, Science Advances etc., and held 15 patents pending or granted. Dr Yu serves as an associate director of the CAS-CityU Joint Lab on Robotics, and an associate editor of IEEE Open Journal of Nanotechnology. Dr Yu is also the recipient of New Innovator of IEEE NanoMed, MINE Young Scientist Award.
于欣格，香港城市大學生物醫學工程系助理教授、博導。2009年本科畢業於電子科技大學。2009-2015年，於美國西北大學與電子科技大學聯合培養攻讀博士，從事柔性金屬氧化物的柔性化與大規模列印的研究，並於2015年獲得博士學位。於2015-2018年先後在美國西北大學生物集成電子研究中心和伊利諾伊大學材料工程系擔任博士後研究員，從事皮膚集成電子、生物電子以及多學科交叉的相關研究。目前研究方向為新型柔性電子材料與器件在生物醫療領域的應用。近年來，已在Nature, Nature Materials, Nature Biomedical Engineering, Science Advances, PNAS, Advanced Materials等學術期刊發表論文70餘篇。擔任香港城市大學-中科院機器人聯合實驗室副主任，IEEE新納米技術雜誌的副主編，獲得IEEE納米醫學發明家獎，MINE青年科學家獎等榮譽獎項。
Keywords
Skin-Integrated皮膚集成
Sensors傳感器
Haptic Interfaces觸覺界面
VR虛擬實境
AR增強現實
Talk 2
Implantable Optoelectronic Devices for Deep-Brain Neural Modulation and Sensing
面向新型神經接口的植入式微納光電器件
Xing Sheng
盛興
Tsinghua University
清華大學
Abstract
Bio-integrated high performance inorganic optoelectronic devices will provide new insights on interactions between light and bio-systems. Here we present unconventional strategies to design and fabricate thin-film, microscale optoelectronic devices and use them in implantable systems for deep brain neural signal modulation and sensing. Specifically, microscale LEDs are utilized to work as light sources to interact with genetically encoded neural actuators, stimulating neural activities, while photodetectors are used to monitor the fluorescence signals of light sensitive proteins, probing neural signals. Implanted devices are wirelessly powered and controlled by a miniaturized circuit system. These devices are implanted deeply into the mouse brain, demonstrating close loop monitoring and manipulation of neural activity in vivo. Such an integrated, deeply implanted and microscale optoelectronic system provides new insights on interactions between optical signals and neural systems.
微電子和光電子等信息器件與生物系統，特別是神經系統的集成逐漸成為一個重要的發展方向。我們通過探索新型的微納器件工藝，結合光學、電學、力學的設計，開發微納尺度的光電子材料與器件，並與柔性異質襯底進行集成，探索其在可穿戴、植入式等生物醫療領域的應用。本報告中，我計劃探討運用新型的光電材料與器件的設計方法和工藝策略，實現植入式的光電晶片，用於生物神經信號的監測和控制，以及生物體內的無線能量傳輸。具體而言，我將介紹基於微納半導體光電器件的新型植入式神經接口，用於多通道、多光譜、多模態的無線在體神經信號檢測與調控。
在未來，我們計劃繼續探索新型器件工藝，結合電路設計、能量傳輸、信號處理等多領域知識，開發新型多功能的神經科學傳感、診斷、治療系統。
Biography
Xing Sheng is currently an associate professor in the Department of Electronic Engineering at Tsinghua University, China. He obtained his PhD degree at Massachusetts Institute of Technology in 2012 (advisor: Lionel C. Kimerling), and his B.Eng degree at Tsinghua University in 2007. From 2012 to 2015, he was a postdoctoral researcher at University of Illinois at Urbana-Champaign (advisor: John A. Rogers). He has published more than 40 papers (including 5 invited papers) in peer-reviewed journals like Nature Materials, PNAS, Advanced Materials, etc. He is currently serving as an associate editor for OSA Optical Materials Express. He is selected into the 「1000 Youth Talents Program」 in 2015. His research interests are primarily in manipulating materials and photonic structures for micro- and nano-scale optoelectronic devices, to enable high performance and versatile functionalities. His recent efforts focus on light management in microscale devices (solar cells, LEDs, etc) for solar energy harvesting and biomedical applications.
盛興，目前就職於清華大學電子工程系，擔任副教授。他於2012年在美國麻省理工學院獲得博士學位（導師：Lionel C. Kimerling），並於2007年在清華大學獲得工學學士學位。2012年至2015年，他在美國伊利諾伊大學厄巴納分校擔任博士後研究員（導師：John A. Rogers）。他在Nature Materials, PNAS, Advanced Materials等期刊上發表了40多篇論文（包括5篇受邀論文）。他目前是OSA Optical Materials Express的編輯。他的主要研究興趣是開發新型的光電子材料與器件，用於生物醫療技術。
Keywords
Optoelectronic光電子
Devices器件
Advanced Neural Interfaces新型神經接口
Implantable植入式
Talk 3
Nanoionics in merging energy storage technologies
新興能源存儲技術中的納米離子學
Dr Yang Xu
徐楊
Department of Chemistry, University College London, UK
英國倫敦大學學院化學系
Abstract
Na-ion and K-ion battery (NIB and KIB) are merging energy storage technologies and have received rapidly increasing academic and industrial interest. This is driven by the increasing market of electric vehicles and large-scale stationary energy storage, as well as the promise of the NIB and KIB technologies to integrate renewable energy into the grid and provide electricity at rural areas for off-grid utilisation. The core challenge to develop the NIB and KIB technologies is to enhance the nanoionics of battery materials, because the large size of Na- and K-ion causes poor kinetics of ion transport and results in poor ion storage performance. This talk presents our work in material design at different length scales to take on the challenge of nanoionics. I will discuss the design in the short atomic arrangement via creating local atomic disorder and in the long atomic arrangement via regulation the level of amorphisation. The design significantly enhances the nanoionics of battery materials through creating ion transport pathways and facilitating ion accommodation and diffusion, which could provide insight into material designs for energy applications where nanoionics is of great importance.
鈉/鉀離子電池由於其在資源與成本上的獨特優勢，已成為目前廣受關注的新興電化學能源存儲技術，在電動汽車、大規模能源存儲、可再生能源的電網集成、以及偏遠地區的用電供應等領域展現了廣闊的應用前景。然而鈉/鉀離子較大的離子半徑嚴重限制了電極材料中的離子傳輸動力學，為相應離子電池的性能優化帶來了巨大的挑戰。因此，我們藉助於納米離子學的指導，對鈉/鉀離子傳輸機制與過程進行了深入探索，通過多尺度的設計，如局部無序度與長程無序度調控，篩選了一系列高性能電極材料，獲得了高效穩定的鈉/鉀離子電池。相關的研究結果表明，納米離子學的指導原則能有效緩解鈉/鉀離子大尺寸的負面影響，大幅提高鈉/鉀離子擴散係數，為高性能鈉/鉀離子電池材料的設計提供了適應性新思路。
Biography
Dr Yang Xu is an Assistant Professor in the Department of Chemistry at University College London. His group is interested in designing and synthesising materials as well as understanding ion transport and storage at the nanometre scale for beyond-lithium energy storage technologies. The group is exploiting a wide range of materials with characteristic crystal structures and atomic arrangements (local defects, short- and long-range disorder) and investigating the correlations between the characteristics and the (electro)chemical processes occurring at electrode-electrolyte interface and in solid electrodes. Dr Xu has been actively working on energy storage materials and devices for over 10 years and is one of the pioneering scientists in the field of K-ion batteries. He is the recipient of the MINE Outstanding Young Scientist Award 2019 and the EPSRC (UK) New Investigator Award. In addition, he serves as a reviewer for internationally leading journals and was awarded an Outstanding Reviewer for Inorganic Chemistry Frontiers in 2016 and Best Reviewer for Science China Chemistry in 2019.
徐楊教授任職於英國倫敦大學學院化學系，長期從事鈉/鉀/高價離子電池電極材料設計與儲能機制的研究工作。課題組致力於推動發展不同尺度下原子排列無序度優化策略，解析電化學離子存儲過程中的物理過程和化學反應，理解電極材料的構效關係，在鉀離子電池領域做出了特別積極的貢獻。徐楊教授曾獲MINE青年科學家獎，英國工程和物理科學研究委員會New Invesitgator Award，Inorganic Chemitry Frontiers和Science China Chemistry優秀審稿人等獎項。
Keywords
Nanoionics納米離子學
Merging Energy新能源
Storage Technologies存儲技術
Na-ion and K-ion battery鈉/鉀離子電池
同時，本次講座也邀請了來自北京大學的張海霞（Alice）教授為大家帶來精彩的主持。