• 姓名:赵 伟
  • 性别:
  • 部门:光子学与光子技术研究所
  • 职称:副教授/副研究员
  • 荣誉:西北大学青年学术英才
  • 邮箱:zhao9@email.sc.edu
  • 研究方向:超分辨光学成像,激光诱发荧光检测技术,微纳流控及微纳流场检测技术,湍流及复杂系统,电动力流体力学,传质传热强化等等。

教育和科研经历

赵伟,副教授,博士生导师

2003年本科毕业于大连理工大学工程力学系,2006年硕士毕业于华中科技大学力学系流体力学专业,于2008年在科院力学所任助理研究员。随后,2014年于University of South Carolina Columbia获得Mechanical Engineering的博士学位。2015年,结束在University of South Carolina Columbia博士后研究员工作后回国,进入西北大学光子学与光子技术研究所任特评副教授。

我在美国期间,先后参与了5项NSF和NAMF基金资助的科研项目,主要从事光学和流体力学方面的研究工作,研究方法涵盖理论、实验、计算。研究课题包括:(1)受激辐射损耗显微镜(STED)开发;(2)激光诱发荧光漂白速度计(LIFPA)开发;(3)微纳流控和微纳尺度流体动力学;(4)电动力流体力学;(5)湍流唯象理论和实验研究;(6)传质传热强化,等等。

目前,主持1项国家自然科学基金面上项目(2017-2020)和1项陕西省教育厅项目,参与1项国家重大仪器项目、1项国家自然科学基金面上项目(2018-2021)以及1项陕西省科技创新团队项目。Lab on a Chip, Physical Review E, Analytical Chemistry, AIChE Journal, Langmuir及Experiments in Fluids等国际著名期刊发表33篇SCI论文和2篇EI论文。申请专利及软件著作权4项,在30余次国际国内会议上作报告。


科研方向简介

我们课题组方向广阔,兼顾基础研究、应用研究和工程开发,发展潜力巨大,目前亟待有志之士加盟,欢迎具有光学、流体力学和计算机软硬件背景的有志青年报考我们课题组的博士和硕士。现对各研究课题做一简介。

(1)受激辐射损耗显微镜(STED):一种新型的荧光显微镜,其原理于1994年由Stefan Hell提出,并在2000年初步实现。由于对该技术的贡献,Dr. Hell获得2014年诺贝尔化学奖。该技术具有广泛的应用前景,例如在生物、生物医学工程、化学、材料等领域。目前,STED显微镜的最高空间分辨率可达到5 nm。我们课题组具有STED显微镜的全系统开发能力和经验,现有独立开发的基于连续激光的STED超分辨显微镜一台,正在开发基于多种激光光源的多台STED超分辨显微镜。此外,我们开发了效果出色的图像后处理算法,能够在软件上实现超分辨成像。目前,我们在该领域参与包括国家重大仪器项目等多项国家和省部级项目。

(2)激光诱发荧光漂白速度计(LIFPA):一种新型的具有极高时间和空间分辨率的微纳流速度测量技术,由GuirenWang在2000年发明。基于该技术,我们取得了诸多突破性的发现。例如,对微流体电动力湍流的速度场进行了高时间-空间分辨率的研究,在微流动中检测到Kolmogorov-5/3谱以及速度结构函数的概率密度分布的指数尾现象。随后,发现ACEOF中电双层上的速度响应远低于预期,且存在明显的混沌流动现象。目前,我们在相关领域承担一项国家自然科学基金面上项目。

(3)微纳流控和微纳尺度流体动力学(Micro/Nanofluidics):基于电动力流动技术,我们开发了目前为止最高效的微混合器技术,并基于LIFPA技术对微纳流控机理和微纳尺度流体动力学进行了实验研究。

(4)电动力流体力学(Electrokinetic flow):包括基于电动力流动的湍流现象研究,DC和AC电渗流的研究,离子电泳以及DNA电泳的动力学研究。

(5)湍流唯象理论和实验研究(Turbulence):对电动力湍流的层次结构和标度律进行了开创性的研究,分别对AC和DC电动力湍流的物理机理进行了理论研究,发现电动力湍流的速度谱和标量谱(电导率或介电系数)分别具有-7/5和-9/5的标度指数。目前,我们在此领域承担陕西省教育厅项目一项。

(6)受限混合层中的传质传热强化(Mass and heat transfer in confined mixing layer):在宏观管路流动中,由于多管路的存在,产生复杂的非线性声学共振,其共振频率远低于1D声学所预测的频率。基于该共振,结合受限混合层,可以实现快速的流动混合和传质传热强化,从而为实现紧凑、高效的化工、药物和发动机提供可能性。


获奖和社会兼职

·      2014年NorthAmerica Mixing Forum Student Award—Runner Up

·      2017年西北大学青年学术英才

·      美国物理学会(APS)会员

·      美国化学工程师学会(AIChE)会员

·      陕西省物理学会会员

·      Sensors and Actuators B等期刊的审稿人


Paper list:

[1]  Yuchen Wang*,Wenxuan Zhao*, Zhongyan Hu, Chen Zhang, Xiaoqiang Feng, Wei Zhao†, Guiren Wang, Kaige Wang, Parametric study of the emission spectra and photobleaching timeconstants of a fluorescent dye in laser induced fluorescence photobleachinganemometer (LIFPA) applications, Experiments in Fluids. 2019, 60:106.

[2]  Wei Zhao† and Guiren Wang, Cascade ofturbulent energy and scalar variance in DC electrokinetic turbulence, PhysicaD, 2019, DOI: 10.1016/j.physd.2019.04.003.

[3]  Yu Cheng, KaigeWang, Yukun Zhou,Dan Sun, Chen Zhang, Wei Zhao and JintaoBai, Enhanced degradation effect of nano-PAA-CuCl2 with controllable 3Dstructure as heterogeneous Fenton-like catalyst over a wide pH range, Journalof Materials Science, 2019, 54(10), 7850-7866.

[4]  Wei Zhao and Guiren Wang, Counter-rotatingvortex shedding generated by acoustic excitations in confined mixing layers,AIChE Journal, 2019, DOI: 10.1002/aic.16577.

[5]  Chao Xiao,Chen Zhang, Jie Zhu, WeiZhao, Jintao Bai, Qingli He and Kaige Wang, Influences of aberration onspatial resolution of STED microscope in probing a specimen with discontinuousrefraction indices, Applied Optics, 2019, DOI: 10.1364/AO.58.002112.

[6]  Jing Xue, Wei Zhao†, Ting Nie,Ce Zhang, Shenghua Ma, Guiren Wang, Shoupeng Liu, Junjie Li, Changzhi Gu,Jintao Bai, Kaige Wang, Abnormal Rheological Phenomena in NewtonianFluids in Electroosmotic Flows in a Nanocapillary, Langmuir, 2018, 34(50), 15203-15210,DOI: 10.1021/acs.langmuir.8b03112.

[7]   Haiyun Qin, Wenxuan Zhao, Wei Zhao, Chen Zhang, Yong Liu, Guiren Wang and Kaige Wang, Evaluation of saturation intensity based on the FWHM of CW stimulatedemission depletion microscopy, Optik, 2018, 166, 219-226, DOI:10.1016/j.ijleo.2018.04.036.

[8]   Haiyun Qin*, Wenxuan Zhao*, Wei Zhao†, Chen Zhang, Xiaoqiang Feng, Shoupeng Liu andKaige Wang, Parametric Investigations on the SaturationIntensity of Coumarin 102 for Stimulated Emission Depletion Application,Journal of Microscopy, 2018, 271(2), 136-144. DOI: 10.1111/jmi.12703.

[9]   Wei Zhao, Xin Liu, Fang Yang, Kaige Wang, Jintao Bai, RuiQiao and Guiren Wang, Study ofOscillating Electroosmotic Flows with High Temporal and Spatial Resolution,Analytical Chemistry, 2018, 90 (3), 1652–1659

[10]  Haiyun Qin*, Wei Zhao*, Chen Zhang, Yong Liu, GuirenWang and Kaige Wang, Influence of fluorescence time characteristicson the spatial resolution of CW-stimulated emission depletion microscopy, ChinesePhysics B, 2018, 27(3), 037803.

[11]  Lianbin Fan,Chen Zhang, Hongfu Li, Kaige Wang, Xiaoqiang Feng, Wei Zhao, Weichao Wang, Jintao Bai,Direct CW-Laser Writing Sub-Diffraction-Limit Nanopore Array Based on the LowOne-Photon Absorption of Polymer, Rare Metal Materials and Engineering, 2018,47(1): 0075-0081.

[12]  Qiang Yuan,Wen-Xuan Zhao, Rui Ma, Chen Zhang, WeiZhao, Shuang Wang, Xiao-Qiang Feng, Kai-Ge Wang, Jin-TaoBai, Sub-diffraction-limit spatially structured light pattern based onpolarized beam phase modulation, Acta Physica Sinica, 2017, 66, 110201. DOI:10.7498/aps.66.110201. (Chinese edition)

[13]  W. Zhao and G. Wang, Scaling ofvelocity and scalar structure functions in ac electrokinetic turbulence,Physical Review E, 2017, 95, 023111.

[14]  W. Zhao, F. Yang, K. Wang, J. Bai and G. Wang, Rapid mixing by turbulent-like electrokinetic microflow, ChemicalEngineering Science, 2017, 165, 113-121.

[15] Y. Duan*, W. Zhao*, J. Xue, D. Sun, K. Wang, G. Wang, J. Li, J. Bai and C. Gu, Current characteristics of λ-DNAmolecules/polystyrene nanoparticles in TBE buffer solution throughmicro/nanofluidic capillaries under DC electric field, Journal of Physics D:Applied Physics, 2017, 50(12), 125401.

[16] Yi-feiDuan, Hong-wei Ma, Ze-yang Gao, Kai-ge Wang, Wei Zhao, Dan Sun, Gui-ren Wang,Jun-jie Li, Jin-tao Bai, Chang-zhi Gu, Reversal current observed inmicro- and submicro-channel flow under non-continuous DC electric field, ChinesePhysics B, 2017, 26(6): 068203

[17] Wei Zhaoand Guiren Wang, Influence of acoustic resonance on mixingenhancement in confined mixing layers, Chemical Engineering and Processing:Process Intensification, 2017, 111, 67-78

[18] Weichao Wang, Wei Zhao, Kaige Wang,Lei Wang, Xuewen Wang, Shuang Wang, Chen Zhang, Jintao Bai, On hydrophilicityimprovement of the porous anodic alumina film by hybrid nano/micro structuring,Applied Surface Science, 2017, 416, 710–715

[19] Fang Yang, Cuifang Kuang, Wei Zhao and Guiren Wang.AC electrokinetic fast mixing in non-parallel microchannels. Chemical Engineering Communications. 2017,204:2, 190-197.

[20] G.R. Wang,Fang Yang*, Wei Zhao*. Microelectrokinetic turbulence inmicrofluidics at low Reynolds number. Physical Review E. 2016, 93,013106.

[21] G.R. Wang,Fang Yang*, Wei Zhao* and Chien-PinChen. On micro-electrokinetic scalar turbulence in microfluidics at a lowReynolds number. Lab on a Chip. 2016, 16, 1030-1038.

[22] Wei Zhao,Fang Yang, Jamil Khan, Ken Reifsnider, G.R Wang. Measurement of velocityfluctuations in microfluidics with simultaneously ultrahigh spatial andtemporal resolution.Experimentsin Fluids. 2016, 57:11.

[23] Chen Zhang, Hongfu Li, Shuang Wang, Wei Zhao, Xiaoqiang Feng, Kaige Wang,Guiren Wang and Jintao Bai, Study ofGenerating Sub-Diffraction-Limit Patterns with the Phase Modulation ofPolarized Beams, Journalof Laser Micro/Nanoengineering, 2016, 11:3, 290-295

[24] Fengyun Yang, Kaige Wang, Dan Sun, Wei Zhao, Hai-qing Wang, Xin He, Gui-ren Wang, and Jin-tao Bai, Direct observation of λ-DNA molecule reversal movement within microfluidic channels under electricfield with single molecule imaging technique. Chinese physics B.2016. 25:7, 78201.

[25] Qing-Qing Wu, Kai-Ge Wang, Dan Sun, Shuang Wang, Chen Zhang, Wei Zhao, Pairing Mismatched ssDNA to dsDNA Studied withReflectometric Interference Spectroscopy Sensor, Chinese Physics Letters, 2016,33:8, 088701.

[26] Wei Zhao,Fang Yang, Jamil Khan, Ken Reifsnider, G.R Wang. Correctionson LIFPA velocity measurements in microchannel with moderate velocityfluctuations. Experimentsin Fluids. 2015, 56:39.

[27] G.R. Wang,Fang Yang*, Wei Zhao*. There canbe turbulence in microfluidics at low Reynolds number. Lab on a Chip, 2014, 14,1452-1458.

[28] Chen Zhang, Kaige Wang, Shuang Wang, Yong Liu, Wei Zhao, Xiaoming Chen, Baole Lu,Changzhi Gu, Yong Sun, Guiren Wang and Jintao Bai. Multipleprimary aberrations effect on donutshaped laser beam in high NA focusing system.Journal of Optics. 2014, 16, 125701.

[29] Chen Zhang, Kaige Wang, Jintao Bai, Shuang Wang,Wei Zhao, Fang Yang, Changzhi Gu andGuiren Wang. Nanopillar array with a λ/11 diameterfabricated by a kind of visible CW laser direct lithography, Nanoscale Research Letters, 2013, 8:280.

[30] Kuang, C, W.Zhao, G. Wang†, Far-fieldoptical nanoscopy based on continuous wave laser stimulated emission depletion.Review of Scientific Instruments.2010, 81, 053709.

[31] CuifangKuang, Fang Yang, Wei Zhao andGuiren Wang, Study of the Rise Time in Electroosmotic Flowwithin a Microcapillary. Analytical Chemistry. 2009, 81, 6590–6595.

[32] Kuang, CF; Zhao, W; Yang, F. and Wang, G. Measuring flow velocity distribution in microchannels using moleculartracers. Microfluidics and Nanofluidics. 2009, 7, 509-517.

[33]赵伟,李万平,壁湍流相干结构尺度及边界层内的SL标度律,力学学报,2007,39卷1期,23-36页。(Wei Zhao and Wanping Li, Experimental studies on SLscaling law and spatial scales of coherent structures in near-wall turbulentboundary layer, Chinese Journal ofTheoretical and Applied Mechanics, 2007, Vol.39, No.1, pp:23-36.

[34] Shuang-xiGuo, Wan-ping Li, Wei Zhao, Bo Chen, Sandaccumulation on a wall in flows around a near-wall circular cylinder, ActaMechanica, 2008, 196:175-185

[35]郭双喜,李万平赵伟近壁圆柱绕流的壁面积沙现象机理分析,2006,水动力学研究与进展,A辑,21(5):108-112

 

* 同等贡献(Equal contribution)

† 通讯作者(Corresponding author)



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