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2017微纳前沿技术青年科学家论坛会议通知
 
 
作者 佚名 摘自 未知 发表 2017-04-16 07:28:56 人气 1001 背景色 杏仁黄 秋叶褐 胭脂红 芥末绿 天蓝 雪青 灰 银河白(默认色) 字号   

北大五四,湖光塔影,春满燕园,群贤毕至,校庆正当时,借此良机,2017年北京大学微纳前沿技术青年科学家论坛也将隆重举行,特邀国内外微纳领域的青年才俊相聚北大,畅谈微纳科技的最新进展,促进交流。研讨会日程如下:

时间:2017年5月4日(周四)全天

地点:北京大学微纳电子大厦一层报告厅

8:30-9:00,签到

9:00-10:30,谢灿,北京大学生命科学院

10:30-12:00,郭雪峰,北京大学化学学院

在此,我们诚挚地邀请您莅临本次学术交流会,在春景如画的五月燕园中,一起感受创新的美丽,一起收获交流的快乐!

请参加的同学务必于51日前在舒立老师(shuli@ime.pku.edu.cn)处报名。

北京大学微电子学研究院

2017年4月28日


附:

郭雪峰北京大学教授,国家杰出青年基金获得者,科技部中青年科技创新领军人才入选者。1998年和2001年分别获北京师范大学本科和硕士学位。2004年获中科院化学所理学博士学位。2004年至2007年在美国哥伦比亚大学从事博士后研究。2008年到北京大学化学与分子工程学院工作至今。主要从事分子材料与器件的应用基础研究,发展了单分子器件制备的突破性方法,实现了世界首例全 可逆的单分子开关器件,推动了单分子电子器件的发展;首次定量确定了DNA分子的导电性,发展了单分子电学实时检测新技术,开拓了单分子科学研究的新领域。发表包括ScienceNature/Science子刊在内SCI论文125篇(IF>10,51篇),SCI引用5000余次,被NatureScience及其子刊等杂志和媒体作为亮点报道20余次,一篇入选“中国百篇最具影响的国际学术论文”;应邀在Chem. Rev.Acc. Chem. Res.Chem. Soc. Rev.等国际期刊上撰写邀请综述多篇。荣获全国百篇优秀博士论文奖、中国化学会青年化学奖、IUPAC杰出奖(材料方面)、中国高等学校十大科技进展 1项和中国科学十大进展1项等奖励。作为首席科学家承担了科技部重大研究计划,作为负责人主持国家自然科学基金重点和杰青项目。担任3种国际学 术期刊的编委或顾问编委,包括ChemNanoMatThe Chemical RecordScientific Reports,和Topics in Current Chemistry的客座编辑。

报告题目:Opportunities and Challenges of Molecular-Scale Electronics

摘要:

This talk will exemplify our on-going interest andgreat effort in developing efficient lithographicmethodologies capable of creating molecular electronic devicesthrough the combination of top-down micro/nanofabrication with bottom-upmolecular assembly. These devices use nanogappedcarbon nanomaterials (such as single-walled carbon nanotubes(SWCNTs) and graphene) as point contacts formed by electron beam lithographyand precise oxygen plasma etching. Through robust amide linkages, functionalmolecular bridges terminated with diamine moieties are covalently wired intothe carboxylic acid-functionalized nanogaps to form stable carbonelectrode-molecule junctions with desired functionalities. One unique featureof these devices is the fact that they contain only one or two molecules asconductive elements, thus forming the basis for building new classes ofchemo/biosensors with ultrahigh sensitivity. We have used these approaches toreveal the dependence of the chargetransport of individual metallo-DNA duplexes on p-stacking integrity, and fabricate molecular devicescapable of realizing label-free, real-time electrical detection of biologicalinteractions at the single-event level, or switching their molecularconductance upon exposure to external stimuli, such as ion, pH and light. Theseinvestigations highlight the unique advantages and importance of theseuniversal methodologies to produce functional carbon electrode-moleculejunctions in current and future researches toward the development of practicalmolecular devices.



谢灿,北京大学生命科学学院教授,研究员,博士生导师。

其磁蛋白研究在海内外引起重大关注。

教育经历

1991 - 1995 , 理学学士 , 生物学, 湖南师范大学生物系

1996 - 2001 , 理学博士 , 蛋白生化和分子遗传学 , 中国科学院遗传与发育生物学研究所(导师:陈受宜张劲松

2001 - 2009 , 博士后 , Research Fellow, 分子生物物理学和结构生物学 , 哈佛大学医学院病理系,免疫疾病研究所(前身为"CBR生物医学研究所")

2006 - 2006 , 毕业 , 高速数据收集和结构解析,大分子X-射线衍射学, 美国Brookhaven国家实验室,生物系和国家同步辐射中心 , RapiData 2006 学习班

杂志编辑

2014 - 至今,常务编委 , 生物化学与生物物理进展

研究课题

2009年,谢灿从美国回国,磁感应课题是他在2009年加入北大之后启动的课题,由其独立设计展开。

2012年,谢灿课题组首次成功筛选鉴定了动物对磁场感应的受体基因(简称磁受体,并命名为MagR),其后经过两年多的结构生物学、生物物理学方面的研究,最终确定MagR介导动物对磁场的感知有可能构成动物迁徙和生物导航的基础。

报告题目:

Walking BetweenWorlds: An Exploration of The Interface Between Biology and Physics

Can Xie(谢 灿)

School of LifeSciences,Peking University, Beijing 100871, China

摘要:

Mytalk will cover two current research directions of our lab. These two researchlines provide us a unique vision to explore the interface between biologicalworld and physical world at molecular level. (I) Magnetoreception, animalmigration and bio-navigation: The notion that animals can detect the Earth’smagnetic field was once ridiculed, but is now well-established fact. However,the nature of this enigmatic sense has remained a fascinating and unresolvedbiological mystery. Previously, we identified a magnetic receptor (MagR) inanimals and a rod-like protein complex magnetosensor. The magnetosensor systemis a nano-scale biological compass consisting of photoreceptor Cryptochromesand magnetoreceptors, and has intrinsic magnetic polarity in alignment withmagnetic fields, including the Earth’s geomagnetic field. However, questionsremain: What is the origin of magneticmoments of MagR? How the light- and magneto- perceptions are coupled in ourBiocompass theory? How the signals from geomagnetic field is perceived withMagR and converted to neural signals? Do animals have ‘Molecular gyroscope’ and‘Quantum gyroscope’ to guide their navigation? And how to apply magnetic fieldsto modulate biological processes based on MagR? We may find answers to thesebiological mysteries from interdisciplinary studies. (II) Cephalopods, thegroup of animals including octopus, squid and cuttlefish, have remarkableability to instantly modulate body coloration and patterns so as to blend intosurrounding environments or send warning signals to other animals. Reflectin,named because of its high refractive index, is expressed exclusively incephalopods and forms reflectors responsible for dynamic iridescence andstructural color change. We report the hierarchical structural architecture ofreflectin protein. Intrinsic self-assembly, along with higher-order assembly,provide insights into the formation of multilayer reflectors in iridophores andspherical microparticles in leucophores, and form the basis of structural colorchange in cephalopods.

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