联系方式
Contact Information
团队简介
Team Introduction
界面分子生物工程实验室(Lab of Interfacial & Molecular Biotechnology,LIMB)聚焦以蛋白质为核心的分子结构转换、分子相互作用和界面行为等科学问题,主要研究方向包括生物催化、生物分离、蛋白质聚集及其抑制、纳/微马达的设计和应用等基础和应用基础研究。已发表SCI论文400多篇,出版专著3部,英文专著2章;获得授权美国发明专利3项,中国发明专利40余项;研究成果先后获得天津市自然科学一等奖、教育部高等学校科学研究优秀成果奖自然科学二等奖和高校科学技术奖自然科学二等奖。
孙 彦
教 授,博士(日本东京大学),博导,天津大学生物化工学科带头人
“长江学者奖励计划”特聘教授
国家杰出青年科学基金获得者
全国百篇优博论文指导教师
Editor, Journal of Chromatography A
A. Editor, Biochemical Engineering Journal
A. Editor, Chinese Journal of Chemical Engineering
董晓燕
教授,博士,博导
史清洪
教授,博士,博导,教育部新世纪优秀人才
余林玲
副教授,博士,硕导
已完成国家自然科学基金杰出青年基金1项、重点项目2项、面上项目(含青年基金)20余项,国家973和863计划项目3项,其他省部级项目10余项。在研国家重点研发专项课题、自然科学基金课题和省部级项目十余项。部分项目如下:
(1) 国家重点研发计划课题:催化元器件的创制与功能表征(孙彦教授)。
(2) 国家重点研发计划课题:新冠疫苗亲和介质研发(史清洪教授)。
(3) 国家重点研发计划课题:固定化酶构效关系与通用载体设计原理(史清洪教授)。
(4) 国家自然科学基金:聚合物配基接枝表面蛋白质吸附传质行为(孙彦教授)。
(5) 国家自然科学基金:亚10纳米马达的设计及其对蛋白质聚集反应的调控作用(孙彦教授)。
(6) 国家自然科学基金:设计多功能纳米马达强化对β淀粉样蛋白的解毒作用(董晓燕教授)。
(7) 国家自然科学基金:高容量蛋白A色谱介质理性设计的分子基础及方法学研究(史清洪教授)。
(8) 国家自然科学基金:智能黏膜穿透纳米马达载药系统的设计及其调控与强化(余林玲副教授)。
(9) 天津自然基金重点项目:基于人白蛋白构筑淀粉样β多肽聚集多功能抑制剂(董晓燕教授)。
(10) 天津自然科学基金:酸敏感修饰惰性微纳米载药粒子的红外驱动扩散与跨膜传质过程设计与强化(余林玲副教授)。
上传附件
支持扩展名:.rar .zip .doc .docx .pdf .jpg .png .jpeg上传附件
支持扩展名:.rar .zip .doc .docx .pdf .jpg .png .jpeg上传附件
支持扩展名:.rar .zip .doc .docx .pdf .jpg .png .jpeg已发表SCI论文400多篇,出版专著3部,英文专著2章;获得授权美国发明专利3项,中国发明专利40余项;研究成果先后获得天津市自然科学一等奖、教育部高等学校科学研究优秀成果奖自然科学二等奖和高校科学技术奖自然科学二等奖。
主要研究成果如下:
一、生物催化
酶作为生物催化剂具有专一性、选择性和作用条件温和等特点,在生化研究、疾病治疗、分析检测、资源开发、环境保护、生物制药、精细化工、轻工制造和日常生活等领域应用非常广泛,各种利用酶的生物催化(生物制造)过程将逐步成为现代绿色过程工业的主体。为提高生物催化效率,酶需要在较宽的pH范围、较高的温度乃至非水相中工作,天然酶一般不适应这种苛刻的工业应用环境。因此,天然酶通常需要利用酶工程改造以提高其催化性能,或利用化学修饰和固定化等方法提高其稳定性(活性)和反复使用性能,以适应特定的条件或工业生产环境,提高酶催化反应效率,降低过程成本。
本实验室的生物催化研究包括三个方面:(1)酶的分子工程,主要利用理性设计、半理性设计和蛋白质融合表达方法改造酶分子,提高酶的活性、稳定性或改变底物特异性;(2)酶的化学修饰和固定化,即利用化学方法提高酶使用效率(活性、稳定性和循环使用等);(3)多酶组装及其级联反应,包括辅酶再生的多酶组装体的设计、多酶融合和共固定化、化学-酶级联反应过程设计等。
建立了基于融合肽设计调控酶的微环境以提高酶催化性能的方法;开发基于两性离子聚合物(ZWP)的蛋白质稳定化作用,研究开发了多种新型ZWP接枝介质的酶固定化方法,发现和研制了多种不仅可以稳定酶的活性,且对酶具有活化作用的ZWP;构建了一种多波长光驱动的微米马达(图1),在光照驱动下发生趋光性群集泳动(图1a, 1b),固定在微球表面的Fe3O4纳米粒子(图1c)和固定化脂肪酶(图1d)的催化反应效率均大幅度提高。
图1. 多波长光驱微米马达及其作用。(a)微米马达的趋光性群集泳动;(b)马达运动速度随光强显著增大;(c)光驱微米马达的运动使其负载的Fe3O4纳米粒子催化罗丹明B降解速度提高5~15倍;(d)光驱微米马达的运动使其固定化脂肪酶催化反应速率提高40%~50%。
代表性论文:
(1) Zhenfu Wang, Yang Hu, Songping Zhang, Yan Sun*: Artificial photosynthesis systems for solar energy conversion and storage: platforms and their realities. Chemical Society Review, 2022, in press.
(2) Kun Chen, Xiaoyan Dong, Yan Sun*: Sequentially co-immobilized PET and MHET hydrolases via Spy chemistry in calcium phosphate nanocrystals present high-performance PET degradation. Journal of Hazardous Materials, 2022, 438: 129517.
(3) Zhenfu Wang, Yan Sun*: A hybrid nanobiocatalyst with in situ encapsulated enzyme and exsolved Co nanoclusters for complete chemoenzymatic conversion of methyl parathion to 4-aminophenol. Journal of Hazardous Materials, 2022, 424: 127755.
(4) Kun Chen, Yang Hu, Xiaoyan Dong, Yan Sun: Molecular insight into the enhanced performance of EKylated PETase towards PET degradation. ACS Catalysis, 2021, 11: 7358-7370.
(5) Zhenfu Wang, Yang Liu, Xiaoyan Dong, Yan Sun*: Cobalt phosphate nanocrystals: A catalase-like nanozyme and in situenzyme encapsulating carrier for efficient chemoenzymatic synthesis of α-keto acid. ACS Applied Materials & Interfaces, 2021, 13 (42), 49974-49981.
二、生物分离工程
蛋白质等生物物质分离纯化是现代生物技术的核心内容。本实验室以蛋白质层析分离技术和理论研究为核心,系统开展了蛋白质层析、亲和分离、液液分配/萃取等分离技术、分离介质、配基、吸附(分配)平衡、分子传递和过程理论研究,并针对基因重组蛋白质包涵体的问题,开发了新型高效的蛋白质复性方法。针对蛋白吸附和色谱技术的高效化,在高效吸附材料创新、吸附理论和色谱过程理论方面开展了系统研究。
首先通过深入研究吸附剂中蛋白质吸附机制,发现了界面分子结构性质对蛋白质吸附平衡和传质动力学的调控作用,建立新型蛋白质吸附平衡热力学和传质动力学模型,揭示了环境因素影响蛋白质吸附和传递的内在规律;进而对色谱介质材料进行创新,提出了“结构可控、性能高效”的蛋白质吸附剂设计思想,获得多种具有过程强化性能的高效吸附剂;在此基础上,通过对层析柱主体和微流道的流体力学特征研究,建立了新型吸附层析过程理论模型,深化了对蛋白质层析过程的科学认识;建立了蛋白质亲和配基仿生设计方法,设计了包括抗体在内的多种蛋白质亲和配基,可用于蛋白质亲和纯化和抗血栓药物开发;近年来,聚焦接枝型吸附层析方法,提出了聚合物接枝型离子交换吸附蛋白质的表面“链传递”理论(图2a),解析了表面配基对链传递的贡献(图2b),设计合成了多种接枝型离子交换层析介质,实现了高流速下的高容量蛋白质层析分离过程。针对基因重组蛋白质的分离复性,开展了系统的蛋白质折叠复性的基础方法学研究。在蛋白质辅助复性添加剂作用下的蛋白质复性动力学、分子伴侣辅助蛋白质复性方法、亲和层析辅助蛋白质复性和分离等方面取得重要研究成果。特别是发现了荷电介质促进同电荷蛋白质复性的现象,提出了同电荷表面调控蛋白质定向排列理论,建立了荷电介质辅助同电荷复性新技术,获得国际专利授权。
图2.聚合物接枝型离子交换吸附介质表面吸附蛋白质的链传递现象:(a)链上吸附蛋白质的链传递;(b)表面配基对链传递的促进作用。
代表性论文:
(1) Xinshuang Chu, Xuehui Yang, Qinghong Shi*, Xiaoyan Dong, Yan Sun: Kinetic and molecular insight into immunoglobulin G binding to immobilized recombinant protein A of different orientations. Journal of Chromatography A, 2022, 1671: 463040
(2) Fenfen You, Qinghong Shi*: Kinetic investigation of protein adsorption into polyelectrolyte brushes by quartz crystal microbalance with dissipation: The implication of the chromatographic mechanism. Journal of Chromatography A, 2021, 1654: 462460
(3) Qinghong Shi, Yan Sun*: Protein A-based ligands for affinity chromatography of antibodies. Chinese Journal of Chemical Engineering, 2021, 30: 194-203.
(4) Linling Yu, Qiuhong Zhai, Yan Sun*: Protein adsorption to poly(ethylenimine)-modified Sepharose FF: VIII. Impacts of surface ion-exchange groups at different polymer grafting densities. Journal of Chromatography A, 2020, 1610: 460538.
(5) Ming Zhao, Run Liu, Jian Luo, Yan Sun, Qinghong Shi*: Fabrication of high-capacity cation-exchangers for protein adsorption: Comparison of grafting-from and grafting-to approaches. Frontiers of Chemical Science and Engineering, 2019, 13(1): 120-32.
三、蛋白质聚集及其抑制
蛋白质的体内聚集可引发许多重要疾病,如阿尔茨海默症(Alzheimer’s disease, AD)和帕金森症等。AD是一种典型的神经退行性疾病,其主要病理特征是大脑海马区神经细胞外β淀粉样蛋白(Aβ)的纤维化沉积、磷酸化Tau蛋白导致的神经元纤维缠结、过渡金属离子代谢紊乱并参与Aβ聚集、造成胞内氧化压力升高等。虽然AD致病机理复杂,很多因素尚不明确且存在争议,但Aβ级联假说受到学术界普遍接受。该理论认为,胞外Aβ的自发聚集会产生大量的寡聚体和纤维,此类聚集体具有高细胞毒性,是损伤神经细胞、影响大脑正常生理功能、导致相关临床表现的重要原因之一。因此,以Aβ为靶点的多功能药物(解毒剂)开发是AD防治的有效途径。
本实验室近10年来系统开展了Aβ聚集及其抑制的理论研究和抑制剂设计。利用分子模拟或分子模拟与实验研究相结合的方法,在分子水平上研究Aβ分子自聚、抑制剂与Aβ的分子相互作用、抑制剂对Aβ构象转换和聚集路径的影响,发现了多功能小分子抑制剂巴西木素和苏木精。在此基础上,设计了七肽抑制剂LK7及其衍生物(肌肽-LK7、RTH-LK7、RTH-LK7-人溶菌酶)、双肽杂交抑制剂VCD10、酸化白蛋白、碱化白蛋白和自组装纳米抑制剂等多种新型抑制剂,解析了它们的抑制作用机理,提出了纳米抑制剂表面作用的“疏水结合-静电排斥理论”(HyBER)。根据HyBER理论,设计合成了基于树枝状聚合物的新型纳米抑制剂。发现了具有快速清除Aβ和检测Aβ的聚合物碳点,在新型碳点和蛋白-金纳米簇复合物设计合成方面取得重要进展。
最近,构建了Aβ聚集抑制剂修饰的近红外(NIR)光驱动纳米马达(JNM-I)(图3a)。在NIR光作用下,JNM-I发生“自热泳”,表观扩散系数提高10-50倍(图3b)。马达的运动加强了负载在JNM-I上的抑制剂I与Aβ之间的碰撞和微观作用范围,对Aβ聚集反应的抑制作用显著增强,表现在纤维化程度明显减少(图3c)、细胞存活率显著提升(图3d)。机理分析表明,NIR驱动JNM-I调控Aβ聚集过程分子构象转变以及Aβ分子的组装,从而改变Aβ聚集路径,抑制Aβ聚集产生的毒性作用。
图3.红外驱动纳米马达。(a) 纳米马达JNM-I强化I与Aβ间的相互作用,调控聚集路径和增强抑制效率示意图;(b) JNM-I扩散系数与NIR功率的关系;(c) AFM观测Aβ聚集体形貌和数量;(d)MTT细胞活性实验结果。
代表性论文:
(1) Wenjuan Wang, Xiaoyan Dong, Yan Sun*: A multi-target theranostic nano-composite against Alzheimer’s disease fabricated by conjugating carbon dots and triple-functionalized human serum albumin. Acta Biomaterialia, 2022, in press.
(2) Wei Liu,# Hui Zhang,# Xiaoyan Dong, Yan Sun*: Composite of gold nanoclusters and basified human serum albumin significantly boosts the inhibition of Alzheimer’s β-amyloid by photo-oxygenation. Acta Biomaterialia, 2022, 144: 157-167.
(3) Wenjuan Wang#, Miaomiao Liu#, Weiqun Gao#, Yan Sun*, Xiaoyan Dong*: Co-assembled chitosan-hyaluronic acid nanoparticles as a theranostic agent targeting Alzheimer’s β-amyloid. ACS Applied Materials & Interfaces, 2021, 13, 55879−55889.
(4) Wenjuan Wang#, Guangfu Zhao#, Xiaoyan Dong, Yan Sun: Unexpected function of a heptapeptide-conjugated zwitterionic polymer that co-assembles into β-amyloid fibrils and eliminates the amyloid cytotoxicity, ACS Applied Materials & Interfaces, 2021, 13: 18089-18099.
(5) Weiqun Gao, Wenjuan Wang, Xiaoyan Dong, Yan Sun: Nitrogen-doped carbonized polymer dots: A potent scavengerand detector targeting Alzheimer’s β-amyloid plaques. Small, 2020, 2002804.
四、纳/微马达及其应用
生命过程时刻存在能量、物质和信息的传递,以维持生命的运转和延续,生物分子机器则是这一过程的主要承载者和执行者。蛋白质是一切生命活动的物质基础,同时也是生物分子机器的主要成分。驱动蛋白、运动蛋白、肌球蛋白、DNA/RNA聚合酶以及ATP合酶等蛋白质作为生物分子机器的代表,负责体内物质运输、能量传递和有机体的机械运动等生命相关过程。近年来,具有类似生物分子机器功能的化学分子马达、DNA分子马达以及基于生物分子复合马达的构建和机理探究成为学术界的研究重点。2016年,Sauvage,Stoddart和Feringa因在人工合成分子机器研究的成就获得诺贝尔化学奖。因此,设计合成新型分子马达,研究其在纳/微尺度的自驱动行为和分子相互作用等基础科学问题,已成为催化科学、生物医学、材料科学和信息技术等领域的研究前沿。目前,在纳/微米尺度,模仿天然生物马达的能量转化或运动行为,研究者已开发设计了大量人工纳/微米马达。纳/微米马达可通过自身不对称的化学反应或经过外场(超声、近红外、磁场和电场等)的刺激实现能量转换和运动,完成特定任务。现阶段对纳/微米马达的制备和自驱动(运动)行为的研究涉及化学、生物、物理、数学和医学等诸多领域,成为新兴交叉学科研究方向。利用其特殊的运动性能,纳/微米马达在生物和化学催化、环境修复、传感与分析检测、纳/微米手术、体内药物递送和治疗等诸多领域取得了重要进展。因此,纳/微米马达作为一种纳/微尺度的人工机器,具有极其重要的研究价值。
本实验室在马达领域的研究涉及生物催化、蛋白质聚集的抑制和药物递送等方向。前述多波长光驱动微米马达(图1)和NIR光驱动纳米马达对Aβ聚集抑制的强化作用(图3)等研究均属于本方向内容。除外场作用驱动的人工马达外,酶催化反应产生的底物浓度梯度也可驱动固定化酶粒子运动,这种自驱动行为又可促进酶催化反应。例如,基于结构不对称的聚合物微米粒子(AHP),构建了具有高活性和自主运动性能的固定化酶反应驱动微米马达(图4a)。基于不对称粒子固定化酯酶(AHP-CRL)的表观催化活性达到对称粒子固定化酶(SMHP-CRL)的2倍(图4b),其运动性能显著增强(图4c),表观扩散系数提升60%(图4d)。
图4 酶反应驱动微米马达。(a)微米马达的合成和马达运动对酶活性的促进作用;(b)比活和底物浓度的关系;(c)运动轨迹的比较;(d)表观扩散系数与底物浓度的关系。
代表性论文:
(1) Yang Hu, Wei Liu, Yan Sun*: Self-propelled micro-/nanomotors as “on-the-move” platforms: Cleaners, sensors and reactors. Advanced Functional Materials, 2022, 32, 210918.
(2) Yang Hu,# Zixuan Li,#Yan Sun*: Ultrasmall enzyme/light-powered nanomotor facilitates cholesterol detection. Journal of Colloid and Interface Science, 2022, 621: 341-351.
(3) Wei Liu, Wenjuan Wang, Xiaoyan Dong, Yan Sun: Near-infrared light-powered Janus nanomotor significantly facilitates inhibition of amyloid‑β fibrillogenesis. ACS Applied Materials & Interfaces, 2020, 12: 12618−12628.
(4) Yang Hu, Wei Liu, Yan Sun: Multiwavelength phototactic micromotor with controllable swarming motion for“chemistry-on-the-fly”. ACS Applied Materials & Interfaces, 2020,12: 41495−41505.
(5) Yang Hu, Yan Sun: Autonomous motion of immobilized enzyme on Janus particles significantly facilitates enzymatic reactions. Biochemical Engineering Journal, 2019, 149: 107242.
近5年发表的主要学术论文:
1 Zhenfu Wang, Yang Hu, Songping Zhang, Yan Sun*: Artificialphotosynthesis systems for solar energy conversion and storage: platforms andtheir realities. Chemical Society Review, 2022, https://doi.org/10.1039/D1CS01008E .
2 Yang Hu, Wei Liu, Yan Sun*: Self-propelled micro-/nanomotorsas “on-the-move” platforms: Cleaners, sensors and reactors. AdvancedFunctional Materials, 2022, 32, 210918.
3 Kun Chen, Xiaoyan Dong, Yan Sun*: Sequentiallyco-immobilized PET and MHET hydrolases via Spy chemistry in calcium phosphatenanocrystals present high-performance PET degradation. Journal of HazardousMaterials, 2022, 438: 129517.
4 Zhenfu Wang, Yan Sun*: A hybrid nanobiocatalystwith in situ encapsulated enzyme and exsolved Co nanoclusters for completechemoenzymatic conversion of methyl parathion to 4-aminophenol. Journal ofHazardous Materials, 2022, 424: 127755.
5 Wenjuan Wang, Xiaoyan Dong, Yan Sun*: Amulti-target theranostic nano-composite against Alzheimer’s disease fabricatedby conjugating carbon dots and triple-functionalized human serum albumin.Acta Biomaterialia, 2022, https://doi.org/10.1016/j.actbio.2022.06.029.
6 Wei Liu,# Hui Zhang,# XiaoyanDong, Yan Sun*: Composite of gold nanoclusters and basifiedhuman serum albumin significantly boosts the inhibition of Alzheimer’sβ-amyloid by photo-oxygenation. Acta Biomaterialia, 2022, 144: 157-167.
7 Yang Hu,# Zixuan Li,# YanSun*: Ultrasmall enzyme/light-powered nanomotor facilitates cholesteroldetection. Journal of Colloid and Interface Science, 2022, 621: 341-351.
8 Zixuan Li, Kun Chen, Linling Yu, Qinghong Shi, YanSun*: Fe3O4 nanoparticles-mediated solar-driven PETdegradation with PET hydrolase. Biochemical Engineering Journal, 2022,180: 108344.
9 Shaoying Xu, Yan Sun, Xiaoyan Dong*: Design ofgallic acid-glutamine conjugate and chemical implications for its potencyagainst Alzheimer’s amyloid-β fibrillogenesis. Bioconjugate Chemistry, 2022,33: 677-690.
10 Xinshuang Chu, Xuehui Yang, Qinghong Shi*, Xiaoyan Dong, Yan Sun: Kinetic andmolecular insight into immunoglobulin G binding to immobilized recombinantprotein A of different orientations. Journalof Chromatography A, 2022, 1671: 463040.
11 Si Liu, Zhenfu Wang, Kun Chen, Qinghong Shi, Xiaoyan Dong, Yan Sun*: Cascadechiral amine synthesis catalyzed by site-specifically co-immobilized alcoholand amine dehydrogenases. Catalysis Science and Technology, 2022, in press.
12 Yue Liang,# WenjuanWang,# Yan Sun, Xiaoyan Dong*: Insights into the cross-amyloid aggregation of Aβ40and its N-terminal truncated peptide Aβ11-40 affected byepigallocatechin gallate. Chinese Journal of Chemical Engineering, 2022,45: 284-293.
13 Xiaoqi Wang#, Zhenfu Wang#, LinlingYu, QInghong Shi, XiaoyanDong, Yan Sun*: Zwitterionic polymer-mediated immobilization oforganophosphorus hydrolase enhances hydrolysis of methyl parathion by substrateenrichment. Biochemical Engineering Journal, 2022, 184: 108491.
14 Chunyu Zhang, Yan Sun, Xiaoyan Dong*:Conjugation of a zwitterionic polymer with dimethyl chains to lipasesignificantly increases the enzyme activity and stability. Chinese Journalof Chemical Engineering, 2022, 47: 48-53.
15 Wei Liu#, Xueting Sun#, Xiaoyan Dong, Yan Sun*: ChiralLVFFARK enantioselectively inhibits amyloid-β protein fibrillogenesis. ChineseJournal of Chemical Engineering, 2022, in press.
16 Xueqing Chen, Weiqun Gao, Yan Sun, Xiaoyan Dong*: Multiple effects ofpolydopamine nanoparticles on Cu2+-mediated Alzheimer's β-amyloidaggregation. Chinese Journal of Chemical Engineering, 2022, in press.
17 Xianxiu Li, Yan Sun, Xiaoyan Dong*: Implications from γ-globulin adsorptiononto cation exchangers fabricated by sequential alginate grafting andsulfonation. Chinese Journal of Chemical Engineering, 2021, 29: 121-125.
18 Chunyu Zhang, Yang Liu, Yan Sun, Xiaoyan Dong*: Complicated effects of azwitterionic polymer containing dimethyl chains on the activity, stability andstructure of different enzymes. Biochemical Engineering Journal, 2021, 165:107813.
19 Shaoying Xu, Wenjuan Wang, Xiaoyan Dong, Yan Sun*: Molecular insight intoCu2+-induced conformational transitions of amyloid β-protein fromfast kinetic analysis and molecular dynamics simulations. ACS ChemicalNeuroscience, 2021, 12, 300−310.
20 Yan Sun: Bio-Review 2021: Inspiring the future of Biochemical Engineering. Chinese Journal of Chemical Engineering, 2021, 30:1-3.
21 Qinghong Shi, Yan Sun*: Protein A-based ligands for affinity chromatographyof antibodies. Chinese Journal of Chemical Engineering, 2021, 30:194-203.
22 Linling Yu,# Changsen Li,# Yang Liu, Yan Sun*: Protein adsorption to poly(2-aminoethylmethacrylate)-grafted Sepharose FF: Effects of chain length and charge density.Journal of Chromatography A (VSI: Biochromatography), 2021, 1638: 461869.
23 Linling Yu, Yan Sun*: Recent advances in protein chromatographywith grafted polymeric ligands. Journal of Chromatography A (SI: Review2020), 2021, 1638: 461865.
24 Wei Liu, Xiaoyan Dong, Yang Liu, Yan Sun*: Photoresponsive materials for intensifiedmodulation of Alzheimer’s amyloid β-protein aggregation: A review. Acta Biomaterialia, 2021, 123: 93-109.
25 Lijie Wang, Yan Sun*: Engineering organophosphate hydrolase for enhancedbiocatalytic performance: A review. Biochemical Engineering Journal, 2021,168: 107945.
26 Wenjuan Wang,# GuangfuZhao,# Xiaoyan Dong, Yan Sun*: Unexpected function of aheptapeptide-conjugated zwitterionic polymer that co-assembles into β-amyloidfibrils and eliminates the amyloid cytotoxicity, ACS AppliedMaterials & Interfaces, 2021, 13: 18089-18099.
27 Yiran Qu, Lijie Wang, Shuang Yin, Bingyang Zhang, Yan Jiao, Yan Sun, AntonMiddelberg, Jingxiu Bi*: Stability of Engineered Ferritin Nano VaccinesInvestigated by Combined Molecular Simulation and Experiment, The Journal ofPhysical Chemistry B, 2021, 125: 3830-3842.
28 Na Sun#, Zhao Ye#, Tanyi Hao, Si Zheng, Yan Sun, Youcai Zhang*, Lin Zhang*:Inhibition of arterial thrombus formation by blocking exposed collagen surfaceusing LWWNSYY-poly (L-glutamic acid) nanoconjugates. Langmuir, 2021, 37(22): 6792-6799.
29 Kun Chen, Yang Hu, Xiaoyan Dong, Yan Sun*: Molecular insight into the enhancedperformance of EKylated PETase towards PET degradation. ACS Catalysis, 2021,11: 7358-7370.
30 Yiran Qu, Bingyang Zhang, Yingli Wang, Shuang Yin, Jordan L Pederick, JohnBruning, Yan Sun, Anton Middelberg, Jingxiu Bi*: Immunogenicity study of engineeredferritins with C- and N- terminus insertion of Epstein-Barr nuclear antigen 1 epitope,Vaccine, 2021, 39: 4830–4841.
31 Kun Chen#, Mingqin Quan#, Xiaoyan Dong, Qinghong Shi,Yan Sun*: Low modification of PETase enhances its activity toward degradingPET: Effect of conjugate monomer property. Biochemical Engineering Journal,2021, 175: 108151.
32 Yiran Qu, Bingyang Zhang, Yingli Wang, Shuang Yin, Yan Sun, AntonMiddelberg, Jingxiu Bi*: Immunogenicityand vaccine efficacy boosted by engineering human heavy chain ferritin andchimeric hepatitis B virus core nanoparticles. ACS Applied Bio Materials,2021, 4 (9): 7147-7156.
33 Zhenfu Wang, Yang Liu, Xiaoyan Dong, Yan Sun*: Cobalt phosphatenanocrystals: A catalase-like nanozyme and insitu enzyme encapsulating carrier for efficient chemoenzymatic synthesis ofα-keto acid. ACS Applied Materials & Interfaces, 2021, 13 (42),49974-49981.
34 Wenjuan Wang#, Miaomiao Liu#, Weiqun Gao#,Yan Sun*, Xiaoyan Dong*: Co-assembled chitosan-hyaluronic acid nanoparticles asa theranostic agent targeting Alzheimer’s β-amyloid. ACS Applied Materials& Interfaces, 2021, 13,55879−55889.
35 Weiqun Gao, Wenjuan Wang, Xiaoyan Dong, Yan Sun*: Nitrogen-doped carbonizedpolymer dots: A potent scavenger and detector targeting Alzheimer’s β-amyloid plaques.Small, 2020, 2002804.
36 Xianxiu Li, Yang Liu, Yan Sun*: Development of poly(methacrylate)-graftedSepharose FF for cation-exchange chromatography of proteins. Journal ofChromatography A. (Bio-chromatography), 2020, 1634: 461669.
37 Lijie Wang, Yan Sun*: Efflux mechanism andpathway of verapamil pumping by human P-glycoprotein. Archivesof Biochemistry and Biophysics, 2020, 696: 108675.
38 Yang Hu, Wei Liu, Yan Sun*: Multiwavelength phototactic micromotor with controllableswarming motion for “chemistry-on-the-fly”. ACS Applied Materials &Interfaces, 2020, 12: 41495−41505.
39 Wenjuan Wang, Wei Liu, Shaoying Xu, Xiaoyan Dong, Yan Sun*: Design of multifunctionalagent based on basified serum albumin for efficient in vivo β-amyloid inhibition and imaging. ACS Applied Bio Materials,2020, 3: 3365−3377.
40 Linling Yu,# Rui Xu,# Xiaoyan Dong, Yang Liu, YanSun*: Protein adsorption to (3-acrylamido propyl) trimethyl ammoniumchloride-grafted Sepharose gel: Charge density reduction via copolymerizingwith electroneutral monomer drastically increases uptake rate. Journal ofChromatography A, 2020, 1629: 461843.
41 Wei Liu, Wenjuan Wang, Xiaoyan Dong, Yan Sun*: Near-infrared light-poweredJanus nanomotor significantly facilitates inhibition of amyloid‑β fibrillogenesis. ACS Applied Materials &Interfaces, 2020, 12: 12618−12628.
42 Linling Yu, Qiuhong Zhai, Yan Sun*: Proteinadsorption to poly(ethylenimine)-modified Sepharose FF: VIII. Impacts ofsurface ion-exchange groups at different polymer grafting densities. Journalof Chromatography A, 2020, 1610: 460538.
43 Rui Xu, Xianxiu Li, Xiaoyan Dong,Yan Sun*: Protein cationexchangers derived by charge reversal from poly(ethylenimine)-Sepharose FF:Comparisons between two derivatization routes. Journal of Chromatography A,2020, 1611: 460586.
44 Junnan Yang, Wei Liu, Yan Sun, Xiaoyan Dong*: LVFFARK-PEG-stabilized blackphosphorus nanosheets potently inhibit amyloid-β fibrillogenesis. Langmuir, 2020, 36 (7): 1804-1812.
45 Changsen Li, Xianxiu Li, Yang Liu, Yan Sun*: Implications from graftingdensity and ionic capacity effects on protein adsorption to poly(N,N-dimethylaminopropylacrylamide)-grafted Sepharose FF. Biochemical Engineering Journal, 2020,157, 107546.
46 Guangfu Zhao, Yan Sun, XiaoyanDong*: Zwitterionic polymer micelles withdual conjugation of doxorubicin and curcumin: Synergistically enhanced efficacyagainst multidrug-resistant tumor cells. Langmuir, 2020, 36 (9): 2383-2395.
47 Xi Li#, Wenjuan Wang#,Xiaoyan Dong, Yan Sun*: Conjugation of RTHLVFFARK to human lysozyme creates apotent multifunctional modulator for Cu2+-mediated amyloid β-protein aggregation and cytotoxicity. Journal ofMaterials Chemistry B, 2020, 8: 2256-2268.
48 Ning Chen, Chunyu Zhang, Xiaoyan Dong, Yang Liu, Yan Sun*: Activation andstabilization of lipase by grafting copolymer of hydrophobic and zwitterionicmonomers onto the enzyme. Biochemical Engineering Journal, 2020, 158:107557.
49 AiyingXue, Yan Sun*: Visualizationand modeling ofprotein adsorption and transportin DEAE- and DEAE-dextran-modified bare capillaries. AIChE Journal, 2019, 65 (1): 305−316.
50 Guangfu Zhao, Xiaoyan Dong, YanSun*: Self-assembled curcumin-poly (carboxybetaine methacrylate) conjugates:Potent nano-inhibitors against amyloid β-protein fibrillogenesis and cytotoxicity. Langmuir, 2019, 35 (5): 1846–1857.
51 Xiuping Hao, Jie Zheng, Yan Sun, Xiaoyan Dong*: Seeding and cross-seedingaggregations of Aβ40 and its N-terminal truncated peptide Aβ11-40.Langmuir, 2019, 35 (7), 2821−2831.
52 Ming Zhao, Run Liu, Jian Luo, Yan Sun, Qinghong Shi*: Fabrication ofhigh-capacity cation-exchangers for protein adsorption: Comparison ofgrafting-from and grafting-to approaches, Frontiers of Chemical Science andEngineering, 2019, 13: 120-132
53 Wei Liu, Xiaoyan Dong, Yan Sun*: d-EnantiomericRTHLVFFARK-NH2: A potent multifunctional decapeptideinhibiting Cu2+-mediated amyloid β-protein aggregationand remodeling Cu2+-mediated amyloid β aggregates. ACS Chemical Neuroscience, 2019, 10: 1390−1401.
54 Ning Chen, Chunyu Zhang, Yang Liu, Xiaoyan Dong, Yan Sun*: Cysteine-modifiedpoly(glycidyl methacrylate) grafted onto silica nanoparticles: New supports forsignificantly enhanced performance of immobilized lipase. BiochemicalEngineering Journal, 2019, 145: 137−144.
55 Zhen Wang, Yi Shen, Qinghong Shi*, Yan Sun: Insightsinto the molecular structure of immobilized protein A ligands on dextran-coatednanoparticles: comprehensive spectroscopic investigation. BiochemicalEngineering Journal, 2019, 146: 20−30.
56 Chunyu Zhang, Yang Liu, Yan Sun*: Lipase immobilized to a short alkylchain-containing zwitterionic polymer grafted on silica nanoparticles: moderateactivation and significant increase of thermal stability. BiochemicalEngineering Journal, 2019, 146: 124−131.
57 Shuaihua Wang, Xianxiu Li, Yan Sun*: Poly(N,N-dimethylaminopropylacrylamide)-grafted Sepharose FF: A new anion exchanger of very high capacityand uptake rate for protein chromatography. Journal of Chromatography A,2019, 1597: 187−195.
58 Wenjuan Wang, Xiaoyan Dong, Yan Sun*:Modification of serum albumin by high conversion of carboxyl to amino groups creates a potent inhibitorof amyloid β-protein fibrillogenesis. Bioconjugate Chemistry, 2019, 30:1477−1488.
59 Yang Hu, Yan Sun*: Autonomousmotion of immobilized enzyme on Janus particles significantly facilitatesenzymatic reactions. Biochemical Engineering Journal, 2019, 149: 107242.
60 Guangfu Zhao#, Fengjuan Qi#, Xiaoyan Dong*, Jie Zheng, Yan Sun: LVFFARK conjugation to poly(carboxybetaine methacrylate) remarkably enhances its inhibitory potency on amyloidβ-protein fibrillogenesis. Reactive & Functional Polymers, 2019, 140: 72−81.
61 Lijie Wang, Lin Zhang, Fufeng Liu, Yan Sun*: Molecularenergetics of doxorubicin pumping by human P-glycoprotein. Journal of Chemical Information and Modeling, 2019, 59, 3889−3898.
62 Ziyuan Wang, Xiaoyan Dong, Yan Sun*: Mixed carboxyland hydrophobic dendrimer surface inhibits amyloid-β fibrillation: New insightfrom the generation number effect. Langmuir, 2019, 35:14681–14687.
63 Zhiqiang Jiang, Xiaoyan Dong*, Xin Yan, Yang Liu,Lin Zhang, Yan Sun*: Nanogels of dual inhibitor-modified hyaluronic acidfunction as a potent inhibitor of amyloid β-protein aggregation and cytotoxicity. Scientific Reports, 2018, 8: 3505. DOI: 10.1038/s41598-018-21933-6.
64 Huan Zhang, Xiaoyan Dong*, Fufeng Liu, Jie Zheng, YanSun: Ac-LVFFARK-NH2 conjugation to β-cyclodextrin exhibitssignificantly enhanced performance on inhibiting amyloid β-proteinfibrillogenesis and cytotoxicity. BiophysicalChemistry, 2018, 235: 40−47.
65 Jie Meng#, Huan Zhang#, Xiaoyan Dong*, Fufeng Liu, YanSun*: RTHLVFFARK-NH2: A potent and selective modulator on Cu2+-mediatedamyloid-β protein aggregation and cytotoxicity. Journal of Inorganic Biochemistry, 2018, 181: 56−64.
66 Liqian Zhang, Yan Sun*: Poly(carboxybetaine methacrylate)-grafted silicananoparticle: A novel carrier for enzyme immobilization. BiochemicalEngineering Journal, 2018, 132: 122−129.
67 Xi Li, Baolong Xie,Xiaoyan Dong, Yan Sun*: Bifunctionality of iminodiacetic acid-modified lysozymeon inhibiting Zn2+-mediated amyloid β-protein aggregation. Langmuir, 2018, 34 (17): 5106−5115.
68 Yangyang Zhao, Xiaoyan Dong*, Linling Yu, Yang Liu, Yan Sun*: Characterization ofnew polymer-grafted protein cation exchangers developed by partialneutralization of carboxyl groups derivatized by modification ofpoly(ethylenimine)-Sepharose with succinic anhydride. Journal ofChromatography A, 2018, 1550: 28-34.
69 Zhiqiang Jiang, Xiaoyan Dong*, Yan Sun: Charge effects of self-assembledchitosan-hyaluronic acid nanogels on inhibiting amyloid β-protein aggregation.Carbohydrate Research, 2018, 461: 11–18.
70 Chunyu Zhang, Xiaoyan Dong, Zheng Guo, Yan Sun*: Remarkably enhancedactivity and substrate affinity of lipase covalently bonded on zwitterionicpolymer-grafted silica nanoparticles. Journal of Colloid and InterfaceScience, 2018, 519: 145–153.
71 Xue-Hui Yang, Li-Ming Huan, Xin-Shuang Chu, Yan Sun, Qinghong Shi*: Acomparative investigation of random and oriented immobilization of protein Aligands on the binding of immunoglobulin G. Biochemical Engineering Journal,2018, 139:15-24.
72 Yangyang Zhao#, Linling Yu#, Xiaoyan Dong, Yan Sun*: Protein adsorption topoly(ethylenimine)-modified Sepharose FF: VII. Complicated effects of pH.Journal of Chromatography A, 2018, 1580:72–79.
73 Huan Zhang, Xiaoyan Dong, Yan Sun*: Carnosine-LVFFARK-NH2 conjugate:A moderate chelator but potent inhibitor of Cu2+-mediated amyloidβ-protein aggregation. ACS Chemical Neuroscience, 2018, 9,2689−2700.
74 Ziyuan Wang, Xiaoyan Dong, Yan Sun*: Hydrophobic modificationof carboxyl-terminated polyamidoamine dendrimer surface creates a potent inhibitor of amyloid‑β fibrillation. Langmuir,2018, 34: 14419−14427.
实验室面积800多平米,包括研究生办公室80平米。配置包括细胞培养室和服务器机房在内的多种功能实验室;配备原子力显微镜、等温滴定微量热仪(2套)、耗散型石英晶体微天平、酶标仪(4套)、高性能集群计算机、停留荧光光谱仪、AKTA系列制备层析系统(5套),HPLC系统(3套)、多角度激光散射仪、纳米粒度和表面电位分析仪等30余套较大型设备,实验设施完善。部分实验室及设施如下图。
秉承严谨治学、求实创新的教育理念,努力营造和谐、创新、发展的文化氛围。本实验室已培养博士70名,硕士170余名。获得全国百篇优秀博士学位论文奖1名,提名奖1名,获国家奖学金7名。目前毕业生中有40余名在美欧澳和中国的大学任教;30余名在中国大陆以外的亚欧美澳等国家和地区工作;100余名国内大型国企和跨国公司任职,其中部分担任企业高管职务。
目前在读博士研究生14名,硕士研究生30名。每年招收硕士研究生10-12名,博士研究生(含硕博连读)2-4名。
本实验室与美国、欧洲、澳洲、日本和香港地区的多所大学和研究机构建立了密切的合作关系,多项合作正在开展之中。优秀博士研究生有机会获得赴美、欧、澳、日和香港等国家和地区联合培养1年以上的机会。
2022年6月于北洋园校区化工学院
2022年6月于北洋园校区求是广场
2021年6月于北洋园校区化工学院
2021年6月于北洋园校区化工学院
2021年4月于北洋园校区化工学院
2020年9月于北洋园校区化工学院
2019年6月于北洋园校区1895广场
2019年6月于北洋园校区求是广场
2018年4月于北洋园校区化工学院
2015年4月于卫津路校区化工学院
2012年6月于卫津路校区北洋广场
孙 彦:ysun@tju.edu.cn
董晓燕:d_xy@tju.edu.cn
史清洪:qhshi@tju.edu.cn
余林玲:yulinling@tju.edu.cn
实验室网址:http://limb.tju.edu.cn/
微信公众号:
一、应聘条件
(1)国内外知名大学博士毕业,原则上年龄不超过30周岁,身体健康,热爱科研,有责任心和团队写作精神。
(2)在化工、化学、材料、生物等相关学科领域的某一特定专业方向取得博士学位,具有扎实的专业理论基础、优秀的创新素质、突出研究成果和良好的中英文写作和沟通能力。
二、聘任待遇
(1)博士后基本年薪25-30万元/年,按照国家和天津市相关规定缴纳社会保险和住房公积金(五险一金)。此外,根据论文发表、项目获批情况等可获额外奖励;
(2)按天津市有关政策给予在站博士后人员一定生活补贴;
(3)对于入选“博新计划”的博士后,除享受国家资助外(国家给予每人两年60万元的资助,其中40万元为博士后日常经费(主要用于工资等),20万元为博士后科学基金),天津大学给予每人每年10万元津贴、10万元奖励津贴资助,一次性10万元科研经费资助。国家资助两年期满,博士后经考核优秀,若继续在站工作,第三年学校给予与前两年同等的薪酬支持。博士后出站后,根据业绩综合评价结果,可申请学校相应的教学科研系列岗位。
(4)工作地点:天津市津南区(天津大学新校区)。
(5)入站后学校认定中级专业技术职称,出站后学校颁发博士后证书。享受国家和天津市各项博士后政策,包括国家及天津市自然科学基金申请等。
(6)享受天津大学博士后待遇,其中公寓、协助办理落户、子女入学等福利将参照学校相关政策。
三、报名方式
(1)网上报名
有意者请将应聘材料发送至孙彦教授(ysun@tju.edu.cn),标题请注明“博士后应聘+姓名”经初审合格者,将通知参加面试,确定最终人选。
(2)应聘材料
• 个人简历及研究工作总结;
• 学历和学位证明复印件;
• 学术成果(论文、获奖证书)等体现个人能力的相关材料。
四、博士后研究方向
(1) 酶工程和生物催化
酶和人工酶的设计改造,多酶、辅酶再生和化学-酶级联系统设计构建、通用性酶修饰和固定化方法设计开发等。
(2)蛋白质聚集及其抑制
淀粉样蛋白探针设计和应用、高效抑制剂设计及其作用机制等。
(3) 微纳米马达
微纳马达的设计及其在生物催化、蛋白质聚集和淀粉样蛋白清除等领域的应用。
天津大学研究生院招生办公室
文件上传中...