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Structural color printing via polymer-assisted photochemical deposition

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Light(Science & Applications) 2022年第5期11卷 796-807页

作者： Shinhyuk Choi Zhi Zhao jiawei zuo Hossain Mansur Resalat Faruque Yu Yao Chao Wang School of Electrical Computer and Energy EngineeringArizona State UniversityTempeAZ 85287USA Biodesign Center for Molecular Design and Biomimetics Arizona State UniversityTempeAZ 85287USA College of Materials Science and Engineering Key Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaBeijing University of TechnologyBeijing 100124China

Structural color printings have broad applications due to their advantages of long-term sustainability,eco-friendly manufacturing,and ultra-high ***,most of them require costly and time-consuming fabrication processes from nanolithography to vacuum deposition and ***,we demonstrate a new color printing technology based on polymer-assisted photochemical metal deposition(PPD),a room temperature,ambient,and additive manufacturing process without requiring heating,vacuum deposition or *** PPD-printed silver films comprise densely aggregated silver nanoparticles filled with a small amount(estimated<20%volume)of polymers,producing a smooth surface(roughness 2.5 nm)even better than vacuum-deposited silver films(roughness 2.8 nm)at~4 nm ***,the printed composite films have a much larger effective refractive index n(~1.90)and a smaller extinction coefficient k(~0.92)than PVD ones in the visible wavelength range(400 to 800 nm),therefore modulating the surface reflection and the phase *** capability of PPD in printing both ultra-thin(~5 nm)composite films and highly reflective thicker film greatly benefit the design and construction of multilayered Fabry–Perot(FP)cavity structures to exhibit vivid and saturated *** demonstrated programmed printing of complex pictures of different color schemes at a high spatial resolution of~6.5μm by three-dimensionally modulating the top composite film geometries and dielectric spacer thicknesses(75 to 200 nm).Finally,PPD-based color picture printing is demonstrated on a wide range of substrates,including glass,PDMS,and plastic,proving its broad potential in future applications from security labeling to color displays.

关键词： composite printing silver

Chip-integrated metasurface full-Stokes polarimetric imaging sensor

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Light(Science & Applications) 2023年第10期12卷 2131-2144页

作者： jiawei zuo Jing Bai Shinhyuk Choi Ali Basiri Xiahui Chen Chao Wang Yu Yao School of Electrical Computer and Energy EngineeringArizona State University85281TempeAZUSA Center for Photonic Innovation Arizona State University85281 TempeAZUSA Biodesign Center for Molecular Design and Biomimetics Arizona State University85281 TempeAZUSA

Polarimetric imaging has a wide range of applications for uncovering features invisible to human eyes and conventional imaging ***-integrated,fast,cost-effective,and accurate full-Stokes polarimetric imaging sensors are highly desirable in many applications,which,however,remain elusive due to fundamental material *** we present a chip-integrated Metasurface-based Full-Stokes Polarimetric Imaging sensor(MetaPolarIm)realized by integrating an ultrathin(~600 nm)metasurface polarization filter array(MPFA)onto a visible imaging sensor with CMOS compatible fabrication *** MPFA is featured with broadband dielectric-metal hybrid chiral metasurfaces and double-layer nanograting *** chip-integrated polarimetric imaging sensor enables single-shot full-Stokes imaging(speed limited by the CMOS imager)with the most compact form factor,records high measurement accuracy,dual-color operation(green and red)and a field of view up to 40 *** holds great promise to enable transformative applications in autonomous vision,industry inspection,space exploration,medical imaging and diagnosis.

关键词： Stokes Polar enable

Deterministic assembly of single optical cavity formed by gold dimensional DNA origami

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Nano Research 2022年第2期15卷 1327-1337页

作者： Zhi Zhao Xiahui Chen jiawei zuo Ali Basiri Shinhyuk Choi Yu Yao Yan Liu Chao Wang Center for Molecular Design and Biomimetics at the Biodesign Institute Arizona State UniversityTempeArizona 85287USA School of Molecular Sciences Arizona State UniversityTempeAZ 85287USA School of Electrical Computer and Energy EngineeringArizona State UniversityTempeAZ 85287USA Faculty of Materials and Manufacturing Key Laboratory of Advanced Functional MaterialsEducation Ministry of ChinaBeijing University of TechnologyBeijing 100124China

Controllable strong interactions between a nanocavity and a single emitter is important to manipulating optical emission in a nanophotonic system but challenging to *** a three-dimensional DNA origami,named as DNA rack(DR)is proposed and demonstrated to deterministically and precisely assemble single emitters within ultra-small plasmonic nanocavities formed by closely coupled gold nanorods(AuNRs).Uniquely,the DR is in a saddle shape,with two tubular grooves that geometrically allow a snug fit and linearly align two AuNRs with a bending angle <10°.It also includes a spacer at the saddle point to maintain the gap between AuNRs as small as 2-3 nm,forming a nanocavity estimated to be 20 nm^(3) and an experimentally measured O factor of 7.3.A DNA docking strand is designed at the spacer to position a single fluorescent emitter at nanometer accuracy within the *** Cy5 as a model emitter,a -30-fold fluorescence enhancement and a significantly reduced emission lifetime(from 1.6 ns to 670 ps)were experimentally verified,confirming significant emitter-cavity *** DR-templated assembly method is capable of fitting AuNRs of variable length-to-width aspect ratios to form anisotropic nanocavities and deterministically incorporate different single emitters,thus enabling flexible design of both cavity resonance and emission wavelengths to tailor light-matter interactions at nanometer scale.

关键词： DNA origami self-assembly deterministic single emitter plasmonic nanocavity nanorod dimer optical coupling

Current state of stem cell research in non-human primates:an overview

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Medical Review 2023年第4期3卷 277-304页

作者： Junmo Wu Yuxi Shi Shanshan Yang Zengli Tang Zifan Li Zhuoyao Li jiawei zuo Weizhi Ji Yuyu Niu Kunming University of Science and Technology KunmingYunnan ProvinceChina Yunnan Key Laboratory of Primate Biomedical Research KunmingYunnan ProvinceChina

The remarkable similarity between non-human primates(NHPs)and humans establishes them as essential models for understanding human biology and diseases,as well as for developing novel therapeutic strategies,thereby providing more comprehensive reference data for clinical *** stem cells such as embryonic stem cells and induced pluripotent stem cells provide unprecedented opportunities for cell therapies against intractable diseases and *** continue to harness the potential of these biotechnological therapies,NHPs are increasingly being employed in preclinical trials,serving as a pivotal tool to evaluate the safety and efficacy of these ***,we review the recent advancements in the fundamental research of stem cells and the progress made in studies involving NHPs.

关键词： non-human primates cell therapy stem cell

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多媒体技术在高校足球技术教学的实证研究

九江职业技术学院学报 2013年第1期 49-51页

作者：左家伟九江职业技术学院江西九江332007

针对目前高校足球技术教学中所存在比较多的突出问题,探讨多媒体技术辅助教学在高校足球选修课中足球技术教学的应用。通过对九江职业技术学院2009级足球选修课学生为实验对象,运用文献资料法、实验法、测量法、对比法、数理统计方法对... 详细信息

针对目前高校足球技术教学中所存在比较多的突出问题,探讨多媒体技术辅助教学在高校足球选修课中足球技术教学的应用。通过对九江职业技术学院2009级足球选修课学生为实验对象,运用文献资料法、实验法、测量法、对比法、数理统计方法对学生足球技术的足球绕杆运球射门、足球踢远和足球踢准等进行实证研究。研究证明多媒体辅助功能教学能大大提高足球绕杆运球射门成绩、足球踢远成绩和足球踢准成绩。

关键词：多媒体足球技术教学

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优化农业产业结构提升农业综合实力

广东蚕业 2020年第12期54卷 117-118页

作者：左佳伟陆三彬杨志军中卫市农业技术推广与培训中心宁夏中卫755000

农业在我国经济发展过程中扮演着重要的角色,也是社会主义新农村建设的主要推动力。积极优化农业产业结构,提升农业综合实力,已经成为农业发展的趋势。文章分析了积极优化农业产业结构、提升农业综合实力的具体措施,从而为我国的农业发... 详细信息

农业在我国经济发展过程中扮演着重要的角色,也是社会主义新农村建设的主要推动力。积极优化农业产业结构,提升农业综合实力,已经成为农业发展的趋势。文章分析了积极优化农业产业结构、提升农业综合实力的具体措施,从而为我国的农业发展和经济增长奠定基础。

关键词：农业产业结构综合实力策略

中药止痛精油联合穴位干预在轻中度癌痛患者中的应用

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河北中医 2024年第10期46卷 1682-1685,1690页

作者：金阳左佳伟吉冬丽江苏省南通市肿瘤医院肿瘤内科江苏南通226006

目的观察中药止痛精油联合穴位干预在轻中度癌痛患者中的应用效果。方法将2022年1月至2022年12月江苏省南通市肿瘤医院肿瘤内科收治的82例轻中度癌痛患者按照随机数字表法分为对照组(行常规护理)及研究组(在对照组基础上加用自制中药止... 详细信息

目的观察中药止痛精油联合穴位干预在轻中度癌痛患者中的应用效果。方法将2022年1月至2022年12月江苏省南通市肿瘤医院肿瘤内科收治的82例轻中度癌痛患者按照随机数字表法分为对照组(行常规护理)及研究组(在对照组基础上加用自制中药止痛精油联合穴位按摩干预),各41例,比较2组患者的疼痛情况、血清炎症因子水平、癌因性疲乏状态、睡眠质量及焦虑、抑郁情绪。结果干预前2组疼痛数字评分(NRS)、白细胞介素-6(IL-6)及肿瘤坏死因子-α(TNF-α)水平、Piper疲乏修正量表(RPFS)评分、匹兹堡睡眠质量指数量表(PSQI)评分、抑郁自评量表(SDS)评分及焦虑自评量表(SAS)评分比较,差异无统计学意义(P>0.05);干预后研究组NRS评分、lL-6、TNF-α水平、RPFS评分、PSQI评分、SAS评分及SDS评分均低于对照组,差异有统计学意义(P<0.05)。结论中药止痛精油联合穴位干预能够有效改善轻中度癌痛患者的疼痛情况,缓解癌因性疲乏状态及焦虑、抑郁情绪,降低患者的血清炎症因子水平,提高患者的睡眠质量。

关键词：癌性疼痛癌因性疲乏中药疗法穴位疗法

柠条复配基质对散叶莴苣幼苗及成株生长发育的影响

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北方园艺 2022年第22期 1-8页

作者：张丽娟朱倩楠杜海东王瑞左佳伟曲继松宁夏农林科学院园艺研究所宁夏银川750002 宁夏农业国际合作项目服务中心宁夏银川750002 中卫市农业技术推广与培训中心宁夏中卫755000

以散叶莴苣为试材,在不同柠条与鸡粪混合物料C/N(20、25和30)条件下,采用双因素三水平比较方法,研究了生物炭、脱硫石膏和二者协同调控发酵熟化产品用于蔬菜育苗的应用效果,以期为柠条园艺基质工厂化生产提供参考依据。结果表明:在不同... 详细信息

以散叶莴苣为试材,在不同柠条与鸡粪混合物料C/N(20、25和30)条件下,采用双因素三水平比较方法,研究了生物炭、脱硫石膏和二者协同调控发酵熟化产品用于蔬菜育苗的应用效果,以期为柠条园艺基质工厂化生产提供参考依据。结果表明:在不同C/N条件下(Ⅰ水平-C/N为20、Ⅱ水平-C/N为25、Ⅲ水平-C/N为30),存在Ⅰ水平>Ⅲ水平>Ⅱ水平的指标数有1个、Ⅱ水平>Ⅰ水平>Ⅲ水平的指标数有1个、Ⅱ水平>Ⅲ水平>Ⅰ水平的指标数有1个,Ⅲ水平>Ⅱ水平>Ⅰ水平的指标数有4个、Ⅲ水平>Ⅰ水平>Ⅱ水平的指标数有4个;因此Ⅱ水平、Ⅲ水平(即C/N为25、30)更有利于散叶莴苣幼苗的生长;在SC、SCB、SCG、SCBG水平条件下,SC水平有3个指标数排第1,SCB水平有2个指标数排第1,在SCG水平有1个指标数排第1,在SCBG水平有5个指标数排第1,因此混合添加生物炭和脱硫石膏更有利于散叶莴苣幼苗壮苗的形成。

关键词：柠条基质生物炭脱硫石膏散叶莴苣育苗

不同氮素剂量对沙质土壤设施韭菜生长发育及品质的影响

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北方园艺 2021年第22期 66-73页

作者：张丽娟汪金山曲继松左佳伟朱倩楠唐静宁夏农林科学院园艺研究所宁夏银川750002 宁夏中卫市沙坡头区东园镇农业技术推广中心宁夏中卫755099 中卫市农业技术推广与培训中心宁夏中卫755000 石嘴山市农产品质量安全中心宁夏石嘴山753000

以"富韭10号"为试材,在韭菜定植1个月后开始每月按不同施氮梯度用量撒施尿素,缓苗后进入旺盛生长时(6个月),测定韭菜的生长、生理、产量及品质指标,研究了不同施氮量对韭菜生长、生理、产量及品质的影响,以期为设施韭菜栽培提高氮肥利... 详细信息

以"富韭10号"为试材,在韭菜定植1个月后开始每月按不同施氮梯度用量撒施尿素,缓苗后进入旺盛生长时(6个月),测定韭菜的生长、生理、产量及品质指标,研究了不同施氮量对韭菜生长、生理、产量及品质的影响,以期为设施韭菜栽培提高氮肥利用率、实现资源高效和环境友好提供参考依据。结果表明:韭菜生长的外部形态(假茎粗、叶长、叶宽、叶厚)、生物量积累及产量(第一茬)指标均随施氮量的增加呈先增加后降低的趋势。N4、N5处理的韭菜生长最好,植株鲜、干质量及产量均较高。由拟合方程得知,韭菜第一茬的667 m^(2)最高产量及其相对应的氮素用量分别为2591.4、18.537 kg。随施氮量的增加,韭菜根系活力呈先增加后降低的趋势,N3的根系活力最强;N4的叶绿素(Ca,Cb)含量最高,其次是N5。总体上光合色素及根系活力变化趋势与韭菜生长状况及产量变化趋势基本一致。随施氮量的增加,韭菜脯氨酸(Pro)含量、丙二醛(MDA)含量、超氧化物歧化酶(SOD)活性、过氧化物酶(POD)活性均呈先降低后增加的趋势,N4的施氮水平表现出所受胁迫程度最小。韭菜的可溶性糖、维生素C、可溶性蛋白质、可滴定酸含量均有随施氮量的增加而先增加后降低的趋势,施氮量对韭菜可溶性蛋白质含量的影响不明显,韭菜硝酸盐含量随施氮量的增加而增加,N5的可溶性糖含量最高,N3的维生素C和可滴定酸含量均最高。综合韭菜生长、生理及产量、品质指标,N4、N5的施氮量表现较好,即667 m^(2)平均施氮量36.84~45.96kg,可以作为韭菜温室栽培条件下氮肥用量的参考依据。

关键词：氮肥韭菜生长生理产量品质