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Microalgae-material hybrid for enhanced photosynthetic energy conversion:a promising path towards carbon neutrality

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National Science Review 2023年第10期10卷 151-171页

作者： Wei Xiong Yiyan Peng Weimin Ma Xurong Xu yueqi zhao Jinhui Wu Ruikang Tang School of Chemistry and Chemical Engineering Nanchang University College of Life Sciences Shanghai Normal University Department of Chemistry Zhejiang University Qiushi Academy for Advanced Studies Zhejiang University Department of Orthopaedic Surgery Sir Run Run Shaw Hospital School of Medicine Zhejiang University State Key Laboratory of Pharmaceutical Biotechnology Medical School & School of Life Sciences Nanjing University

Photosynthetic energy conversion for high-energy chemicals generation is one of the most viable solutions in the quest for sustainable energy towards carbon neutrality.Microalgae are fascinating photosynthetic organisms,which can directly convert solar energy into chemical energy and electrical energy.However,microalgal photosynthetic energy has not yet been applied on a large scale due to the limitation of their own characteristics.Researchers have been inspired to couple microalgae with synthetic materials via biomimetic assembly and the resulting microalgae-material hybrids have become more robust and even perform new functions.In the past decade,great progress has been made in microalgae-material hybrids,such as photosynthetic carbon dioxide fixation,photosynthetic hydrogen production,photo electrochemical energy conversion and even biochemical energy conversion for biomedical therapy.The microalgae-material hybrid offers opportunities to promote artificially enhanced photosynthesis research and synchronously inspires investigation of biotic-abiotic interface manipulation.This review summarizes current construction methods of microalgae-material hybrids and highlights their implication in energy and health.Moreover,we discuss the current problems and future challenges for microalgae-material hybrids and the outlook for their development and applications.This review will provide inspiration for the rational design of the microalgae-based semi-natural biohybrid and further promote the disciplinary fusion of material science and biological science.

关键词： microalgae–material hybrid photosynthesis cell–material interaction energy conversion carbon neutrality

Fluorescent probe gold nanodots to quick detect Cr(VI) via oxidoreduction quenching process

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Science China Chemistry 2019年第1期62卷 133-141页

作者： yueqi zhao Yuanqing Sun Yingnan Jiang Shanliang Song Tianxin zhao Yue zhao Xinyu Wang Baoquan Li Bai Yang Quan Lin State Key Laboratory of Supramolecular Structure and Material College of Chemistry Jilin University State Key Laboratory of Heavy Oil Processing College of Science China University of PetroleumBeijing Jilin Ginseng Academy Changchun University of Chinese Medicine Department of Oral Pathology School and Hospital of Stomatology Jilin University

A method is described here for the quickly(<30 s) accurate determination of Cr(VI)(Cr_2O_7^(2-)), based on fluorescent probes gold nanodots(AuNDs, excitation/emission peaks at 395/604 nm) coated with glutathione(GSH). The fluorescence of the AuNDs responses linearly to Cr(VI) concentrations, ranging widely from 1 nM to 10 m M with detection limit as low as 0.35 nM. At the same time, the AuNDs is demonstrated highly selective for Cr(VI) detection over other acid group ions and metal ions without any masking reagent. These make probability for practical use. The quenching mechanism is investigated deeply via fluorescent lifetime, XPS and TEM analysis. Different from most reported quenching explanation of aggregation derived from charge attraction, these results verify the redox reaction between Cr_2O_7^(2-)and sulfhydryl(–S) of GSH. The Au(I)–S bonds of AuNDs broke, accompanies with the oxidation of –S to form S–S bonds. As a result, AuNDs cross linked to each other. In the end, the fluorescence quenched. Attractively, the present study provides a new strategy for pollutant detection, such as from harmful Cr(VI) of Cr_2O_7^(2-)to nontoxic Cr(III).

关键词： fluorescent probe of Cr (Ⅵ) Au nanodots quick and quantitative detection fluorescence quenching mechanism pollutant detection

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2023年γδT细胞肿瘤治疗领域重大进展

中国肿瘤生物治疗杂志 2024年第3期31卷 211-218页

作者：赵跃祺张建民陈慧何维中国医学科学院基础医学研究所北京协和医学院基础医学院免疫学系T细胞与免疫治疗重点实验室重大疾病共性机制研究全国重点实验室北京100005 常州西太湖细胞治疗前沿技术研究院常州213000

γδT细胞是一类表达γδTCR异源二聚体的特殊固有免疫T细胞。过去,缺乏对其全面系统的基础研究,在其发育、分化、增殖、活化、效应和耗竭等所有环节仍有很多问题尚不清楚。然而,因为成熟的γδT细胞优势定植于皮肤、消化道、呼吸道、... 详细信息

γδT细胞是一类表达γδTCR异源二聚体的特殊固有免疫T细胞。过去,缺乏对其全面系统的基础研究,在其发育、分化、增殖、活化、效应和耗竭等所有环节仍有很多问题尚不清楚。然而,因为成熟的γδT细胞优势定植于皮肤、消化道、呼吸道、生殖道等肿瘤高发的黏膜组织,能以MHC非限制性的方式直接识别和杀伤多种肿瘤细胞,在肿瘤免疫治疗领域具有不可替代的优势,近年来其应用异军突起,发展迅速,也因此反过来促进了基础研究的深入,取得了一些亮眼的进展。本文对2023年γδT细胞在肿瘤免疫治疗领域的重大进展进行述评,主要集中在γδT细胞肿瘤抗原识别机制、肿瘤微环境中γδT细胞的功能调控、γδT细胞抗肿瘤细胞毒活性的机制、新型基于γδT细胞的肿瘤免疫治疗协同增效策略四个方面,以期推动γδT细胞在肿瘤免疫治疗领域的进一步发展,为临床γδT细胞应用协同增效的策略提供新的思路。

关键词： γδT细胞免疫治疗肿瘤

Polycation-functionalized gold nanodots with tunable near-infrared fluorescence for simultaneous gene delivery and cell imaging

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Nano Research 2018年第5期11卷 2392-2404页

作者： Yuanqing Sun Dandan Wang yueqi zhao Tianxin zhao Hongchen Sun Xiangwei Li Chuanxi Wang Bai Yang Quan Lin State Key Laboratory of Supramolecular Structure and Materials College of Chemistry Jilin University Changchun 130012 China Institute of New Energy Technology Ningbo Institute of Industrial Technology Chinese Academy of Sciences Ningbo 315201 China School ofStomatology Jilin University Changchun 130041 China State Key Laboratory of Heavy Oil Processing College of Science China University of Petroleum Beijing 102249 China

Near-infrared （NIR） fluorescent metal nanodots may have significant advantages in biological detection and bioimaging. Herein, we introduce tunable near-infrared fluorescent gold nanodots （AuNDs） protected by branched polyethylenimine （PEI） modified by surface segmental attachment of sulfhydryl groups （PEI-SH）, abbreviated as PEI-SH-AuNDs, for simultaneous gene delivery and cell imaging. The modified PEI endows the resultant PEI-SH-AuNDs with the following excellent advantages. Sulfhydryl groups of PEI-SH anchor to the surface of AuNDs, and such polycations with amine groups give PEI-SH-AuNDs remarkable stability. The cationic polymer PEI-SH with positive charges enables PEI-SH-AuNDs to perform gene delivery, and the gene transfection efficiency can reach 22.8%. Moreover, the fluorescence of PEI-SH-AuNDs is tunable from visible red light （wavelength 609 nm） to NIR light （wavelength 811 run） via an increase in the size of AuNDs. PEI-SH-AuNDs yielded gene transfection efficiency similar to that of commercial PEI, but showed much lower cytotoxicity and much greater red-shift fluorescence. With excellent photoluminescent properties, such multifunctional fluorescent PEI-SH-AuNDs hold promise in applications to bioimaging and as ideal fluorescent probes for tracking gene transfection behavior.

关键词： near-infrared fluorescent material,Au nanodot,tunable fluorescence,gene deliver,bioimaging

Ultra-small nanodots coated with oligopeptides providing highly negative charges to enhance osteogenic differentiation of hBMSCs better than osteogenic induction medium

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Chinese Chemical Letters 2021年第1期32卷 266-270页

作者： yueqi zhao Lin Meng Kai Zhang Yuanqing Sun Yue zhao Zhe Yang Yangliu Lin Xinrui Liu Hongchen Sun Bai Yang Quan Lin State Key Laboratory of Supramolecular Structure and Material College of ChemistryJilin UniversityChangchun 130012China School and Hospital of Stomatology China Medical UniversityShenyang 110002China State Key Laboratory of Heavy Oil Processing College of ScienceChina University of PetroleumBeijing 102249China School and Hospital of Stomatology Jilin UniversityChangchun 130021China Department of Neurosurgical Oncology The First Hospital of Jilin UniversityChangchun 130021China

For bone regenerative engineering,it is a promising method to form skeletal tissues differentiating from human bone morrow mesenchyme stem cells(hBMSCs).However,it is still a critical challenge to efficiently control ostogenesis and clearly reveal the influence factor.To this end,the fluorescent gold nanodots(Au NDs) with highly negative charges as osteogenic induction reagent are successfully synthesized,which display better than commercial osteogenic induction medium through the investigations of ALP activity(2.5 folds) and cytoskeleton staining(1.5 folds).Two kinds of oligopeptides with different bio-structures(cysteine,Cys and glutathione,GSH) are selected for providing surficial charges on Au NDs.It is revealed that Au-Cys with more negative charges(-51 mV) play better role than Au-GSH(-19 mV) in osteogenic differentiation,when both of them have same size(~2 nm),sphere shape and show similar cell uptake amount.To explore deeply,osteogenesis related signaling pathways are monitored,revealing that the enhancement of osteogenic differentiation was through autophagy signaling pathway triggered by Au-Cys.And the promotion of highly negative charges in osteogenic diffe rentiation was further proved via sliver nanodots(Ag NDs,Ag-Cys and Ag-GSH) and carbon nanodots(CDs,Cys-CDs and GSH-CDs).This work indicates part of insights during hBMSCs differentiation and provides a novel strategy in osteogenic differentiation process.

关键词： Osteogenic differentiation Negative charges from oligopeptide Sub-3 nm fluorescent Au nanodots Better than osteogenic induction medium Autophagy

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最好可能自我想象对中性人脸表情识别的影响

杭州师范大学学报（自然科学版） 2024年第2期23卷 153-156,189页

作者：赵玥琪胡治国杭州师范大学经亨颐教育学院浙江杭州311121 杭州师范大学附属医院认知与脑疾病研究中心浙江杭州310015

考察了最好可能自我想象对中性人脸表情识别的影响.选取大学生被试56名,随机分为最好可能自我想象组(BPS组)和对照组.BPS组进行30 min的最好可能自我想象并写下相关内容,对照组在同样的时间内回忆并写下自己过去一周发生的事情.干预后,... 详细信息

考察了最好可能自我想象对中性人脸表情识别的影响.选取大学生被试56名,随机分为最好可能自我想象组(BPS组)和对照组.BPS组进行30 min的最好可能自我想象并写下相关内容,对照组在同样的时间内回忆并写下自己过去一周发生的事情.干预后,BPS组的抑郁自评分数显著降低,正性情绪分数显著提高,负性情绪分数显著降低.干预后,BPS组和对照组对中性面孔的情绪价评定显著上升.结果表明,最好可能自我想象可以有效提升个体的积极情绪,并促使个体对中性面孔的感知更偏向积极.

关键词：最好可能自我未来想象情绪表情识别启动效应

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新时代赓续雷锋精神的三维探析

锦州医科大学学报（社会科学版） 2024年第1期22卷 91-94页

作者：王劲松赵月琪王建辽宁大学马克思主义学院辽宁沈阳110036 锦州医科大学马克思主义学院辽宁锦州121002

雷锋精神是第一批被纳入中国共产党人精神谱系的伟大精神,它产生于社会主义建设时期,历经60多年传承,在历代领导人的大力倡导下,其教育、引导、示范作用日益凸显。雷锋精神是中华民族历久弥坚的精神丰碑,为中国人民提供了精神导向和行... 详细信息

雷锋精神是第一批被纳入中国共产党人精神谱系的伟大精神,它产生于社会主义建设时期,历经60多年传承,在历代领导人的大力倡导下,其教育、引导、示范作用日益凸显。雷锋精神是中华民族历久弥坚的精神丰碑,为中国人民提供了精神导向和行动指引。在新时代视域下,文章以内涵维度为支撑点、以价值维度为关键点、以实践维度为落脚点,对赓续雷锋精神的基本内涵、价值意蕴和实践路径进行探析,始终高举雷锋精神火炬,为深入学习贯彻习近平新时代中国特色社会主义思想、实现第二个百年奋斗目标提供强大精神动力。

关键词：雷锋精神新时代基本内涵价值意蕴实践路径

基于三节点逆元法与光纤传感器的机翼形态重构方法

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航空科学技术 2024年第5期35卷 101-109页

作者：岳应萍赵悦琦曾捷王志刚杨宇南京航空航天大学航空航天结构力学及控制全国重点实验室江苏南京210016 中国飞机强度研究所陕西西安710065

基于应变信息的飞机机翼结构形态重构技术,可为“仿生式机翼”的气动外形、气弹特性以及隐身性能控制提供数据支撑。为实现对飞机机翼的变形监测,本文提出一种基于三节点逆有限元法和应变信息采集的形态重构方法,并给出相应的光频域反... 详细信息

基于应变信息的飞机机翼结构形态重构技术,可为“仿生式机翼”的气动外形、气弹特性以及隐身性能控制提供数据支撑。为实现对飞机机翼的变形监测,本文提出一种基于三节点逆有限元法和应变信息采集的形态重构方法,并给出相应的光频域反射型分布式光纤传感器布局形式。首先,建立飞机机翼简化模型,开展基于有限元分析结果的形态重构方法仿真验证。其次,构建基于分布式光纤传感器的机翼简化模型应变监测与形态重构试验系统。研究表明,自然下垂工况下,机翼简化模型形态重构相对误差平均值约为4.01%;弯扭组合工况下,机翼简化模型形态重构相对误差平均值约为6.34%。本文所提方法适用于不同载荷工况下飞机机翼变形监测,能够为可变体机翼形态调控与机载共型天线相位补偿提供帮助。

关键词：逆有限元法机翼简化模型光频域反射型分布式光纤传感器形态重构

龙葵茎叶中澳洲茄碱及澳洲茄边碱的超声辅助提取工艺优化

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中国林副特产 2024年第1期 7-9页

作者：赵玥琪徐铭阳郝婧玮许丽颖刘斗南牡丹江师范学院生命科学与技术学院黑龙江牡丹江157011 吉林农业大学农学院长春130000 牡丹江师范学院化学化工学院黑龙江牡丹江157011

以龙葵茎叶提取物为原料,考察提取时间、料液比、乙醇浓度、水解酸种类及浓度等因素对澳洲茄碱、澳洲茄边碱提取率的影响。结果表明:以乙醇为提取溶剂,超声辅助提取,最佳提取工艺为,乙醇浓度80%、提取时间60 min、提取温度40℃、料液比1... 详细信息

以龙葵茎叶提取物为原料,考察提取时间、料液比、乙醇浓度、水解酸种类及浓度等因素对澳洲茄碱、澳洲茄边碱提取率的影响。结果表明:以乙醇为提取溶剂,超声辅助提取,最佳提取工艺为,乙醇浓度80%、提取时间60 min、提取温度40℃、料液比1∶20,在此条件下,龙葵茎叶中澳洲茄碱、澳洲茄边碱的含量分别为0.229%、0.141%;以10%硫酸乙醇作为提取溶剂,在料液比1∶20、提取时间60 min、提取温度80℃条件下,澳洲茄碱与澳洲茄边碱提取率分别为0.275%、0.168%,与乙醇提取相比,提取率分别提高1.2、1.19倍。实验证明:酸水解可提高龙葵茎叶中澳洲茄碱、澳洲茄边碱的提取率。

关键词：龙葵澳洲茄碱澳洲茄边碱酸水解