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Polydopamine-Based Colorimetric Superwettable Biosensor for Highly Sensitive Detection of Hydrogen Peroxide and Glucose

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Journal of Analysis and Testing 2023年第2期7卷 118-127页

作者： Jinze li yuhao li Zhongfeng Gao Key Laboratory of Interfacial Reaction and Sensing Analysis in Universities of Shandong School of Chemistry and Chemical EngineeringUniversity of JinanJinan 250022China College of Chemistry and Chemical Engineering Linyi UniversityLinyi 276005China

Superwettable surface has broad application prospects in fabricating biosensors due to its significant enrichment ***,we report a polydopamine-based colorimetric superwettable sensor that integrates superhydrophobic-superhydrophilic micropatterns for the determination of hydrogen peroxide(H_(2)O_(2))and *** can be oxidized into polydopamine with the addition of horseradish peroxidase(HRP)and H_(2)O_(2),leading to the deposited spots color change from colorless to *** concentration of target can be determined by analyzing RGB value using a smartphone *** superhydrophobic area on the superwettable surface helps capture droplets by confining them to superhydrophilic *** droplet evaporation,the analytes are concentrated in the small superhydrophilic domain,thus greatly enhancing the *** experimental results manifested that superwettable sensor is able to detect H_(2)O_(2)with a broad linear range of 0.25μmol/L-25 mmol/L and a low limit of detection(LOD)of 0.25μmol/L by naked *** glucose detection,the linear range of the sensor is from 2μmol/L to 20 mmol/L and LOD is 0.69μmol/*** superwettable sensor has been successfully applied in practical samples,including cancerous cells,milk,urine,and human serum samples with acceptable *** superwettable sensor has several merits,such as high sensitivity,rapid response,and low sample volume in a single microdroplet,and shows great potential in manufacturing portable devices for complex biosensing applications.

关键词： Colorimetric assay Polydopamine Hydrogen peroxide Glucose detection Superwettable sensor

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Synthesis of hydrophobic carbon nanotubes/reduced graphene oxide composite films by flash light irradiation

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Frontiers of Chemical Science and Engineering 2018年第3期12卷 376-382页

作者： Kai Wang Jinbo Pang liwei li Shengzhe Zhou yuhao li Tiezhu Zhang College of Automation and Electric Engineering Qingdao University Qingdao 266071 China The Leibniz Institute for Solid State and Materials Research Dresden (IFW Dresden) Dresden D-01069 Germany

Carbon nanotubes/graphene composites have superior mechanical, electrical and electrochemistry prop- erties with carbon nanotubes as a hydrophobicity boosting agent. Their extraordinary hydrophobic performance is highly suitable for electrode applications in lithium ion batteries and supercapacitors which often employ organic electrolytes. Also the hydrophobic features enable the oil enrichment for the crude oil separation from seawater. The ever reported synthesis routes towards such a composite either involve complicated multi-step reactions, e.g., chemical vapor depositions, or lead to insufficient extru- sion of carbon nanotubes in the chemical reductions of graphene oxide, e.g., fully embedding between the compact graphene oxide sheets. As a consequence, the formation of standalone carbon nanotubes over graphene sheets remains of high interests. Herein we use the facile flash light irradiation method to induce the reduction of graphene oxides in the presence of carbon nanotubes. Photographs, micrographs, X-ray diffraction, infrared spectroscopy and thermogravimetric analysis all indicate that graphene oxides has been reduced. And the contact angle tests confirm the excellent hydrophobic perfor- mances of the synthesized carbon nanotube/reduced graphene oxide composite films. This one-step treatment represents a straightforward and high efficiency way for the reduction of carbon nanotubes/graphene oxides composites.

关键词： carbon nanotubes graphene composite flash irradiation method reduced graphene oxide contact angles

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Radiation-induced precipitation of transmutation elements rhenium/osmium and their effects on hydrogen behavior in tungsten

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Progress in Natural Science:Materials International 2019年第3期29卷 285-294页

作者： yuhao li Fangfei Ma Fangya Yue Qingyuan Ren Hongbo Zhou Guanghong Lu Department of Physics Beihang University Beijing Key Laboratory of Advanced Nuclear Materials and Physics Beihang University

Here,we review recent computational findings focused on the behavior of transmutation elements (TEs) in Tungsten (W).W is chosen as one of the most promising materials for the divertor armor and plasma facing components in future fusion ***,W in exposure of fusion neutrons can cause the transmutation reaction and produce TEs,such as rhenium and *** presence of TEs can change chemical component of materials,and therefore inevitably influence the microstructure and properties of W *** simulation methods have been employed to investigate the dissolution,diffusion and radiation induced precipitation of TEs,as well as their effects on the behaviors of hydrogen isotopes in *** systematic review can provide an insightful understanding to estimate the influence of TEs on the properties and performance of Wbased materials.

关键词： Tungsten Transmutation elements Radiation induced precipitation Point defects Hydrogen

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Rapid identification of two-dimensional materials via machine learning assisted optic microscopy

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Journal of Materiomics 2019年第3期5卷 413-421页

作者： yuhao li Yangyang Kong Jinlin Peng Chuanbin Yu Zhi li Penghui li Yunya liu Cun-Fa Gao Rong Wu Shenzhen Key Laboratory of Nanobiomechanics Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055GuangdongChina School of Physics Science and Technology Xinjiang UniversityUrumqi830046XinjiangChina State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics&AstronauticsNanjing210016JiangsuChina Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education Xiangtan UniversityXiangtan411105HunanChina Institute of Biomedicine and Biotechnology Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055GuangdongChina

A combination of Fresnel law and machine learning method is proposed to identify the layer counts of 2D *** indexes,which are optical contrast,red-green-blue,total color difference,are presented to illustrate and simulate the visibility of 2D materials on Si/SiO_(2) substrate,and the machine learning algorithms,which are k-mean clustering and k-nearest neighbors,are employed to obtain thickness database of 2D material and test the optical images of 2D materials via red-green-blue *** results show that this method can provide fast,accurate and large-area property of 2D *** the combination of artificial intelligence and nanoscience,this machine learning assisted method eases the workload and promotes fundamental research of 2D materials.

关键词： Two-dimensional materials Optical contrast Total color difference Red-green-blue K-means clustering K-nearest neighbors(k-NN)

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Functionalization of bismuth sulfide nanomaterials for their application in cancer theranostics

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Chinese Chemical Letters 2020年第12期31卷 3015-3026页

作者： Hui Wang Junlei Yang Penghui Cao Ning Guo yuhao li Yuefeng Zhao Shuang Zhou Ruizhuo Ouyang Yuqing Miao Institute of Bismuth Science University of Shanghai for Science and TechnologyShanghai 200093China Cancer Institute Tongji University School of MedicineShanghai 200092China

Multifunctional bismuth sulfide(Bi_(2)S_(3))nanomate rials exhibit significant potential as na no medicines for the diagnosis and treatment of *** nanomaterials act as excellent photothermal agents and radiation sensitizers for the treatment of tumors,and they can also act as contrast agents for computed tomography(CT)imaging,photoacoustic imaging(PA),and other forms of imaging to provide real-time tumor monitoring and testing *** with other nanomaterials,Bi2S3 nanomaterials can readily adapt to different applications by virtue of the fact that they can be easily ***,these nanomaterials have some limitations that cannot be ignored and need to be addressed,such as poor biocompatibility,toxicity,and low chemical *** is widely believed that appropriate functionalization of Bi_(2)S_(3) nanomaterials could remedy such defects and significantly improve *** review summarizes the ways in which Bi_(2)S_(3) nanomaterials can be functionalized and discusses their applications in cancer theranostics over the last few years,focusing particularly on imaging and *** also discuss issues relating to how Bi_(2)S_(3) nanomaterials can be analyzed,including how we might be able to use these systems to inhibit and treat tumors and how current limitations might be ove rcome to improve treatment ***,we hope to provide inspiration and guidance as to how we might create a mo re optimized multifunctio nal nano-system for the diagnosis and treatment of tumors.

关键词： Bi_(2)S_(3) In vivo imaging Multifunctional nano-system Diagnosis Treatment

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Large animal models of cardiac ischemia-reperfusion injury:Where are we now?

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Zoological Research 2023年第3期44卷 591-603页

作者： Attaur Rahman yuhao li To-Kiu Chan Hui Zhao Yaozu Xiang Xing Chang Hao Zhou Dachun Xu Sang-Bing Ong Department of Medicine and Therapeutics Faculty of MedicineThe Chinese University of Hong Kong(CUHK)Hong Kong SARChina Centre for Cardiovascular Genomics and Medicine(CCGM) Lui Che Woo Institute Innovative MedicineThe Chinese University of Hong Kong(CUHK)Hong Kong SARChina College of Veterinary Sciences and Animal Husbandry Abdul Wali Khan University MardanMardanKhyber Pakhtunkhwa 23200Pakistan School of Biomedical Sciences CUHK-GIBH CAS Joint Laboratory on Stem Cell and Regenerative MedicineThe Chinese University of Hong Kong(CUHK)Hong Kong SARChina Institute for Tissue Engineering and Regenerative Medicine(iTERM) The Chinese University of Hong Kong(CUHK)Hong Kong SARChina SBS Core Laboratory CUHK Shenzhen Research InstituteShenzhenGuangdong 518172China Kunming Institute of Zoology–The Chinese University of Hong Kong(KIZ-CUHK)Joint Laboratory of Bioresources and Molecular Research of Common Diseases Hong Kong SARChina Shanghai East Hospital Key Laboratory of Arrhythmias of the Ministry of Education of ChinaSchool of Life Sciences and TechnologyTongji UniversityShanghai 200092China Guang’anmen Hospital China Academy of Chinese Medical SciencesBeijing 100053China Department of Cardiology Chinese People’s Liberation Army General HospitalBeijing 100853China Center for Cardiovascular Research and Alternative Medicine University of Wyoming College of Health SciencesLaramieWY 82071USA Department of Cardiology Shanghai Tenth People’s HospitalTongji University School of MedicineShanghai 200072China Hong Kong Hub of Paediatric Excellence(HK HOPE) Hong Kong Children’s Hospital(HKCH)Kowloon BayHong Kong SARChina CUHK Shenzhen Research Institute(SZRI) ShenzhenGuangdong 518172China Neural Vascularand Metabolic Biology Thematic Research ProgramSchool of Biomedical SciencesThe Chinese University of Hong Kong(CUHK)Hong Kong SARChina

Large animal models of cardiac ischemia-reperfusion are critical for evaluation of the efficacy of cardioprotective interventions prior to clinical ***,current cardioprotective strategies/interventions formulated in preclinical cardiovascular research are often limited to small animal models,which are not transferable or reproducible in large animal models due to different factors such as:(i)complex and varied features of human ischemic cardiac disease(ICD),which are challenging to mimic in animal models,(ii)significant differences in surgical techniques applied,and(iii)differences in cardiovascular anatomy and physiology between small versus large *** article highlights the advantages and disadvantages of different large animal models of preclinical cardiac ischemic reperfusion injury(IRI),as well as the different methods used to induce and assess IRI,and the obstacles faced in using large animals for translational research in the settings of cardiac IR.

关键词： Cardiovascular disorder Ischemic cardiac disease Ischemic-reperfusion injury Large animal model Myocardial infarction Translational gap

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Solvent-free synthesis of diacylglycerols via enzymatic glycerolysis between edible oils and glycerol catalyzed by self-made immobilized lipase PS@LXTE-1000

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Oil Crop Science 2024年第4期9卷 225-233页

作者： yuhao li Yi Zhang Run liu Zhonghui liu Kheng-lim Goh Vladimir Zivkovic Mingming Zheng School of Chemical and Environmental Engineering Wuhan Polytechnic UniversityWuhanHubei430023China Oil Crops Research Institute Chinese Academy of Agricultural SciencesHubei Key Laboratory of Lipid Chemistry and NutritionHubei Hongshan LaboratoryKey Laboratory of Oilseeds ProcessingMinistry of AgricultureWuhan430062China Newcastle University in Singapore 172A Ang Mo Kio Avenue 8#05-01599493Singapore School of Engineering Newcastle UniversityNewcastle Upon TyneNE17RUUK

Diglycerol(DAG)is a structural lipid with the functions to lower body fat accumulation and decrease serum triglyceride ***,the enzymatic synthesis of DAG is limited by the high-efficient and economic *** this paper,the immobilized lipase PS@LXTE-1000 was self-made by immobilizing the Pseudomomas cepacian lipase on to the hydrophobic microporous resin *** results indicate that LXTE-1000 was a uniform mesoporous sphere with the mean diameter of 400μm,pore size of 14.6 nm,pore volume of 0.5 cm3/g and surface area of 126.0 m^(2)/g,showing superior structural properties for lipase *** the optimal reaction conditions with the molar ratio of rapeseed oil to glycerol being 1:1,adding amount of immobilized lipase being 4%,reaction at 50℃,the highest DAG content of 46.7%was achieved in 3 h via enzymatic glycerolysis catalyzed by *** 7 cycles of reuse,the self-made LXTE-1000 could still retain 78.3%of its initial catalytic ***,LXTE-1000 was observed to facilitate the DAG production via glycerolysis reaction between glycerol with other seven edible oils including corn oil,sesame oil,peony seed oil,rice bran oil,peanut oil,soybean oil and flaxseed ***,the glycerolysis reaction with sesame oil,peony seed oil and rice bran oil even led to the DAG content of 52.1%,53.3%and 51.2%,respectively,Hence,this paper provide a novel strategy to produce high-efficient and economic immobilized lipases,which shows great potential in the green synthesis of functional lipids such as DAG.

关键词： Immobilized lipase Diaglycerol Enzymatic glycerolysis Functional lipids

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1D/2D composite subnanometer channels for ion transport:The role of confined water

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Nano Research 2023年第8期16卷 10913-10921页

作者： yuhao li Xiaorui Jin Xinhai Yan Xinyu Ai Xin Yang Zi-Jian Zheng Kun Huang Gaofeng Zhao Yongan Yang Meiling Wu Kai-Ge Zhou Institute of Molecular Plus Department of ChemistryTianjin UniversityTianjin 300072China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer MaterialsHubei UniversityWuhan 430062China School of Chemical Engineering and Analytical Science National Graphene InstituteUniversity of ManchesterManchesterM139PLUK School of Civil Engineering Tianjin UniversityTianjin 300072China

As a mass transport media,water is an alternative of organic solvent applied in rechargeable batteries,due to its unique properties,including fast ionic migration,easy-processibility,economic/environmental friendliness,and flame ***,due to the high activity of water molecules in aqueous electrolytes,the corrosion of metal anode,side reactions,and inferior metal electrodeposition behavior leads to unstable cycling performance,poor Coulombic efficiency(CE),and early-staged failure of *** several attempts to regulate the activity of water,migration of ions is sacrificed,due to the limited methods to control the water ***,we developed a subnanoscale confinement strategy based on a nacre-like structure to modulate the activity of water in the solid *** tuning the ratio between the two-dimensional(2D)vermiculite and one-dimensional(1D)cellulose nanofibers(CNFs),the capillary size in the 1D/2D structure is altered to achieve a fast Zn^(2+)*** dielectric relaxation and molecular dynamics studies indicate that the enhanced Zn^(2+)conductivity is attributed to the fast water relaxation in the precisely defined 1D/2D *** advantage of the regulated activity of the confined water in 2D capillary,the composite vermiculite membrane can suppress the corrosion and side reactions between Zn electrode and water molecular,endowing a reversible Zn^(2+)stripping/plating behavior and a stable cycling performance for 900 *** on our confinement strategy to control the water states by 1D/2D structures,this work will open an avenue toward aqueous energy storage devices with excellent reversibility,high safety,and long-term stability.

关键词： ion transport subnanometer channels confined water aqueous electrolyte limited side reactions

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Unidirectionally aligned bright quantum rods films,using T-shape ligands,for LCD application

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Nano Research 2022年第6期15卷 5392-5401页

作者： Maksym F.Prodanov Chengbin Kang Swadesh K.Gupta Valerii V.Vashchenko yuhao li Minchao Qin Xinhui Lu Abhishek K.Srivastava State Key Laboratory of Advanced Displays and Optoelectronics Technologies and Centre for Display Research Department of Electronics and Computer EngineeringThe Hong Kong University of Science and TechnologyClear Water BayHong Kong 999077Hong KongChina Department of Physics The Chinese University of Hong KongShatinHong Kong 999077Hong KongChina

Unidirectionally aligned nanorods(NRs)are of great importance for different applications,including displays,lighting,and ***,many alignment techniques were studied to align quantum rods(QRs).However,the brightness of these films,due to the limited concentration of aligned quantum rods in the film,is not enough for their implementation as brightness enhancement films(BEFs)in *** can be ascribed to the poor miscibility of quantum rods in polymer and strong concentration dependence of the polarized *** ligands of NR are very important for the alignment and *** this article,we proposed a ligand combination comprising T-shape promesogenic phosphonic acid,which on being photoaligned provides mutually parallel alignment of the quantum *** T-shape ligands enable the fabrication of hybrid films with a QRs concentration as high as 10 wt.%–20 wt.%retaining high brightness and luminescence polarization ***,we used these films in the in-plane switching(IPS)display backlight that shows the color gamut up to 121%of national television system committee(NTSC)(CIE1931),liquid-crystal display(LCD)efficiency up to 7.9%,power efficacy 103±2 nits/W,and the high brightness of~550±10 ***,the proposed ligands can be used for the alignment of a variety of nanorods.

关键词： quantum rods(QRs) ligands alignment display luminous efficiency

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Mapping the elastic properties of two-dimensional MoS_(2) via bimodal atomic force microscopy and finite element simulation

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npj Computational Materials 2018年第1期4卷 246-253页

作者： yuhao li Chuanbin Yu Yingye Gan Peng Jiang Junxi Yu Yun Ou Dai-Feng Zou Cheng Huang Jiahong Wang Tingting Jia Qian Luo Xue-Feng Yu Huijuan Zhao Cun-Fa Gao Jiangyu li State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics&AstronauticsNanjing 210016 JiangsuChina Shenzhen Key Laboratory of Nanobiomechanics Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen518055 GuangdongChina Department of Mechanical Engineering Clemson UniversityClemsonSC 29634-0921USA Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education School of Materials Science and EngineeringXiangtan UniversityXiangtan 411105 HunanChina Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment Hunan University of Science and TechnologyXiangtan 411201 HunanChina School of Physics and Electronic Science Hunan University of Science and TechnologyXiangtan 411201 HunanChina Institute of Biomedicine and Biotechnology Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055 GuangdongChina Shenzhen Institutes of Advanced Technology Chinese Academy of SciencesShenzhen 518055 GuangdongChina Department of Mechanical Engineering University of WashingtonSeattleWA 98195USA

Elasticity is a fundamental mechanical property of two-dimensional(2D)materials,and is critical for their application as well as for strain ***,accurate measurement of the elastic modulus of 2D materials remains a challenge,and the conventional suspension method suffers from a number of *** this work,we demonstrate a method to map the in-plane Young’s modulus of mono-and bi-layer MoS_(2) on a substrate with high spatial *** atomic force microscopy is used to accurately map the effective spring constant between the microscope tip and sample,and a finite element method is developed to quantitatively account for the effect of substrate stiffness on *** these methods,the in-plane Young’s modulus of monolayer MoS_(2) can be decoupled from the substrate and determined as 265±13 GPa,broadly consistent with previous reports though with substantially smaller *** is also found that the elasticity of mono-and bi-layer MoS_(2) cannot be differentiated,which is confirmed by the first principles *** method provides a convenient,robust and accurate means to map the in-plane Young’s modulus of 2D materials on a substrate.

关键词： modulus modal element

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