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Screen-Printable Functional Nanomaterials for Flexible and Wearable Single-Enzyme-Based Energy-Harvesting and Self-Powered Biosensing Devices

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Nano-Micro Letters 2023年第6期15卷 254-269页

作者： Kornautchaya Veenuttranon Kanyawee Kaewpradub Itthipon Jeerapan center of excellence for trace analysis and biosensor Prince of Songkla UniversityHat YaiSongkhla 90110Thailand Division of Physical Science Faculty of SciencePrince of Songkla UniversityHat YaiSongkhla 90110Thailand center of excellence for Innovation in Chemistry Faculty of SciencePrince of Songkla UniversityHat YaiSongkhla 90110Thailand

Developing flexible bioelectronics is essential to the realization of artificial intelligence devices and biomedical applications, such as wearables, but their potential is limited by sustainable energy supply. An enzymatic biofuel cell(BFC) is promising for power supply, but its use is limited by the challenges of incorporating multiple enzymes and rigid platforms. This paper shows the first example of screen-printable nanocomposite inks engineered for a single-enzyme-based energy-harvesting device and a self-powered biosensor driven by glucose on bioanode and biocathode. The anode ink is modified with naphthoquinone and multiwalled carbon nanotubes(MWCNTs), whereas the cathode ink is modified with Prussian blue/MWCNT hybrid before immobilizing with glucose oxidase. The flexible bioanode and the biocathode consume glucose. This BFC yields an open circuit voltage of 0.45 V and a maximum power density of 266 μW cm-2. The wearable device coupled with a wireless portable system can convert chemical energy into electric energy and detect glucose in artificial sweat. The self-powered sensor can detect glucose concentrations up to 10 mM. Common interfering substances,including lactate, uric acid, ascorbic acid, and creatinine, have no effect on this self-powered biosensor. Additionally, the device can endure multiple mechanical deformations. New advances in ink development and flexible platforms enable a wide range of applications, including on-body electronics, self-sustainable applications, and smart fabrics.

关键词： Screen-printable nanocomposites Glucose Glucose oxidase Biofuel cells Self-powered biosensors Flexible bioelectronics

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Sources appointment and health risks of PM_(2.5)-bound trace elements in a coastal city of southeastern China

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Journal of Environmental Sciences 2024年第4期138卷 561-571页

作者： Ziyi Lin Xiaolong Fan Gaojie Chen Youwei Hong Mengren Li Lingling Xu Baoye Hu Chen Yang Yanting Chen Zhiqian Shao Jinsheng Chen center for excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Key Lab of Urban Environment and Health Institute of Urban EnvironmentChinese Academy ofSciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China Minnan Normal University Zhangzhou 363000China

To gain a comprehensive understanding of sources and health risks of trace elements in an area of China with high population densities and low PM_(2.5)concentrations,15 trace elements(Al,K,Ca,Ti,V,Cr,Mn,Fe,Ni,Cu,Zn,As,Sn,Ba,Pb)in PM_(2.5)were monitored from December 2020 to November 2021 in a representative city,*** concentrations of trace elements in Xiamen displayed an obvious seasonal variation and were dominated by K,Fe,Al,Ca and *** on Positive Matrix Factorization analysis,source appointment revealed that the major sources of trace elements in Xiamen were traffic,dust,biomass and firework combustion,industrial manufacture and shipping *** to health risk assessment combined with the source appointment results,it indicated that the average noncarcinogenic risk was below the threshold and cancer risk of four hazardous metals(Cr,Ni,As,Pb)exceeded the threshold(10^(-6)).Traffic-related source had almost half amount of contribution to the health risk induced by PM_(2.5)-bound trace *** the dust transport period or Spring Festival period,the health risks exceeded an acceptable threshold even an order of magnitude higher,suggesting that the serious health risks still existed in low PM_(2.5)environment at certain *** risk assessment reminded that the health risk reduction in PM_(2.5)at southeastern China should prioritize traffic-related hazardous trace elements and highlighted the importance of controlling vehicles emissions in the future.

关键词： PM_(2.5)-bound trace elements Seasonal variations Source appointment Health risks Traffic-related source

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Lithium Isotope Analytical Methods and Implications for Rare-Metal Mineralization in Granite-Pegmatite Systems: An Overview

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Journal of Earth Science 2024年

作者： Xiang-Ying Ye Bin Li Dong-Bo Tan Ke-Cheng Liu Zhi-Yong Zhu Hafiz Muhammad Siddique Yi-Lin Xiao Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Ministry of Education) School of Geosciences and Info-physics Central South University CAS Key Laboratory of Geospace Environment and Department of Plasma Physics and Fusion Engineering University of Science and Technology of China Institute of Geology Chinese Academy of Geological Sciences CAS Key Laboratory of Crust-Mantle Materials and Environments School of Earth and Space Sciences University of Science and Technology of China Chinese Academy of Sciences center of excellence in Comparative Planetology

The origin of highly-fractionated granite-pegmatite systems and their associated rare metal mineralization has been widely studied， but there is still ongoing debate. Prevailing hypotheses suggest that pegmatite formation and the associated rare metal mineralization are closely related to aqueous fluid processes. Lithium (Li) isotope analysis has been widely applied to trace granite-pegmatite evolution. This is because lithium is widely present in various minerals (e.g.， mica， tourmaline) that record the melt and fluid compositions， and lithium isotopes are sensitive to magmatic-hydrothermal processes. We briefly review the methodology of Li isotope analyses， the mechanisms of Li isotopic fractionation， and， in particular， Li isotope fractionation in granite-pegmatite system based on Li isotope data we have collected and the latest developments in Li isotope geochemistry. With the development of analytical technology， high-precision measurement of the Li content and isotopic compositions have facilitated a series of scientific breakthroughs in understanding the magmatic-hydrothermal evolution of rare-element ore deposits. Li isotope analysis on bulk mineral separates show ability to trace various hydrothermal processes (e.g. exotic or exsolved fluids). In situ Li isotope analysis methods has been enhanced by the development of new， homogeneous mineral reference materials. In situ SIMS and LA-MC-ICP-MS Li isotope measurements on minerals (e.g.， tourmaline) will likely become more important in studying the fluid–rock interactions in magmatic， metamorphic， and hydrothermal processes， as well as on pegmatite petrogenesis and rare-metal mineralization.

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MAX-DOAS and in-situ measurements of aerosols and trace gases over Dongying,China:Insight into ozone formation sensitivity based on secondary HCHO

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Journal of Environmental Sciences 2024年第1期135卷 656-668页

作者： Xiaojun Zheng Zeeshan Javed Cheng Liu Aimon Tanvir Osama Sandhu Haoran Liu Xiangguang Ji Chengzhi Xing Hua Lin Daolin Du Institute of Environment and Ecology School of the Environment and Safety EngineeringJiangsu UniversityZhenjiang 212013China Department of Precision Machinery and Precision Instrumentation University of Science and Technology of ChinaHefei 230026China Key Laboratory of Environmental Optics&Technology Anhui Institute of Optics and Fine MechanicsHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China center for excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes University of Science and Technology of ChinaHefei 230026China Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention(LAP3) Department of Environmental Science and EngineeringFudan UniversityShanghai 200433China National Agromet center Pakistan Meteorological DepartmentIslamabad 44000Pakistan Institute of Physical Science and Information Technology Anhui UniversityHefei 230601China Information Materials and Intelligent Sensing Laboratory of Anhui Province Anhui UniversityHefei 230601China School of Environmental Science and Optoelectronic Technology University of Science and Technology of ChinaHefei 230026China

This study presents a comprehensive overview of the atmospheric pollutants including Sulfur dioxide(SO_(2)),Nitrogen dioxide(NO_(2)),Formaldehyde(HCHO),Particulate Matter PM;PM_(10):diameter≤10μm,and PM_(2.5):diameter≤2.5μm,and Ozone(O_(3)),over Dongying(Shandong Province)from March-April 2018 and September-October 2019 by employing ground-based Multiple Axis Differential Optical Absorption Spectroscopy(MAX-DOAS)observations along with the in-situ measurements attained by the national air quality monitoring *** concentrations of SO_(2)and NO_(2)were under the acceptable level,while both PM_(2.5),and PM_(10)were higher than the safe levels as prescribed by national and international air quality *** results depict that 21%of the total observation days were found to be complex polluted days(PM_(2.5)>35μg/m^(3) and O_(3)>160μg/m^(3)).The secondary HCHO was used for accurate analysis of O_(3)sensitivity.A difference of 11.40%and 10%during March-April 2018 and September-October 2019 respectively in O_(3)sensitivity was found between HCHO_(total)/NO_(2)and HCHO_(sec)/NO_(2).The results indicate that primary HCHO have significant contribution in HCHO.O_(3)formation predominantly remained to be in VOC-limited and transitional regime during March-April 2018 and September-October 2019 in *** results imply that concurrent control of both NO_(x) and VOCs would benefit in ozone ***,the criteria pollutants(PM,SO_(2),and NO_(2))depicted strong correlations with each other except for O_(3)for which weak correlation coefficient was obtained with all the *** study will prove to be baseline for designing of air pollution control strategies.

关键词： MAX-DOAS trace gases Ozone sensitivity Secondary HCHO Complex Pollution

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Gracilaria fisheri oligosaccharides ameliorate inflammation and colonic epithelial barrier dysfunction in mice with acetic acid-induced colitis

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Asian Pacific Journal of Tropical Biomedicine 2021年第10期11卷 440-449页

作者： Brenda Siringoringo Nawiya Huipao Chittipong Tipbunjong Jongdee Nopparat Santad Wichienchot Albert M.Hutapea Pissared Khuituan Division of Health and Applied Sciences Faculty of SciencePrince of Songkla UniversitySongkhlaThailand Gut Biology and Microbiota Research Unit Prince of Songkla UniversitySongkhlaThailand trace analysis and biosensor Research center Prince of Songkla UniversitySongkhlaThailand center of excellence in Functional Foods and Gastronomy Faculty of Agro-IndustryPrince of Songkla UniversitySongkhlaThailand Department of Pharmacy Faculty of ScienceUniversitas Advent IndonesiaBandungIndonesia

Objective:To investigate the effect of Gracilaria fisheri oligosaccharides(GFO)on inflammation and colonic epithelial barrier dysfunction in colitis ***:The animals were treated by oral gavage with distilled water,1000 mg/kg inulin,100,500,or 1000 mg/kg GFO for 14 d,or treated with 50 mg/kg mesalamine for 5 d after colitis induction(on day 10).Histopathology,inflammatory cytokines,colonic permeability,and tight junction proteins were investigated by hematoxylin and eosin staining,immunohistochemical staining,Ussing chamber technique,and Western blotting assays,***:GFO ameliorated histological damage in colitis mice when compared to untreated colitis *** with 100,500,and 1000 mg/kg GFO reduced TNF-αexpression,while IL-1βwas significantly reduced in colitis mice treated with 500 and 1000 mg/*** to untreated colitis mice,GFO increased transepithelial electrical resistance,reduced fluorescein isothiocyanate-dextran paracellular flux,and modulated tight junction proteins(occludin and claudin 2)in colitis ***:GFO has anti-inflammatory activity and could modulate colonic epithelial barrier dysfunction in acetic acid-induced colitis ***,GFO could modulate the expression of tight junction proteins that play important roles in colonic barrier function.

关键词： Ulcerative colitis Cytokines Gut permeability Tight junction Red algae Gracilaria fisheri Mice Anti-inflammation Colonic epithelial barrier

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The critical factors of photocatalytic H2 production from seawater by using TiO_(2)as photocatalyst

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Nano Research 2023年第4期16卷 4620-4624页

作者： Yaqian He Pengfei Li Wenning Liu Li An Dan Qu Xiayan Wang Zaicheng Sun Beijing Key Laboratory for Green Catalysis and Separation Center of Excellence for Environmental Safety and Biological EffectsFaculty of Environment and LifeBeijing University of TechnologyBeijing 100124China

The solar H_(2)generation directly from natural seawater is a sustainable way of green ***,it is limited by a low H_(2)generation rate even compared to fresh *** this report,TiO_(2)is chosen as a model photocatalyst to disclose the critical factor to deteriorate the H_(2)generation rate from *** simulated seawater(SSW),which is composed of eight ions(Na^(+),K^(+),Ca^(2+),Mg^(2+),Cl^(−),Br^(−),SO_(4)^(2−),and CO_(3)^(2−)),is investigated the effect of each ion on the H_(2)*** results indicate that all ions have a negative effect at the same concentration as in the seawater except Br−.The CO_(3)^(2−)has the most serious deterioration,and the H_(2)production rate lowers near 40%even at[CO_(3)^(2−)]of 1.5 mmol·L^(−1).The H_(2)production rate can be recovered to 85%if the CO_(3)^(2−)is excluded from the *** understand the reason,the zeta potential of the TiO_(2)treated with different ions aqueous solution reveals that the zeta potential decreases when it is treated with CO_(3)^(2−)and SO_(4)^(2−)due to they can adsorb on the surface of TiO_(2)*** transform infrared(FTIR)and thermogravimetric analysis-mass spectroscopy(TGA-MS)further confirm that the adsorbed ion is mainly from CO_(3)^(2−).Since the pH of seawater is about 8.9 between pKa1(6.37)and pKa2(10.3)of H_(2)CO3,the CO_(3)^(2−)should exist in the form of HCO3−in the *** proposed a simple method to remove the adsorbed HCO3−from the TiO_(2)surface by adjusting the pH below the *** results indicate that if a trace amount of HCl(adjusting pH~6.0)is added to the SSW,the H_(2)production rate can be recovered to 85%of that in pure water.

关键词： seawater H_(2)production rate adsorb ions pH

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Application of graphite screen printed electrode modified with dysprosium tungstate nanoparticles in voltammetric determination of epinephrine in the presence of acetylcholine

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Journal of Rare Earths 2018年第7期36卷 750-757页

作者： Hadi Beitollahi Zahra Dourandish Somayeh Tajik Mohammad Reza Ganjali Parviz Norouzi Farnoush Faridbod Environment Department Irtstitute of Science and High Technology and Environmental SciencesGraduate University of Advanced Technology Department of Chemistry Graduate University of Advanced Technology NanoBioElectrochemistry Research center Bam University of Medical Scicnce center of excellence in Electrochemistry Faculty of ChemistryUniversity of Tehran biosensor Research center Endocrinology & Metabolism Molecular-Cellular Sciences InstituteTehran University of Medical Sciences

The current work focuses on the development of a sensitive and selective electrochemical device based on a graphite screen printed electrode modified with Dy2（WO4）3 nanoparticles（DWO/SPE） for the analysis of epinephrine in samples also containing acetylcholine. The study proves that the sensor has excellent electron-mediating behavior in the oxidation of epinephrine in a 0.1 mol/L phosphate buffer solution（PBS）（pH 7.0）. The application of the DWO/SPE in differential pulse voltammetry（DPV） is found to lead to distinct response for the oxidation of epinephrine and acetylcholine, with the potentials of the epinephrine and acetylcholine peaks（△Ep） to be 550 mV apart. The detection limits of the method for epinephrine and acetylcholine are 0.5 and 0.7 μmol/L（S/N = 3） and the responses are found to be linear in the concentration ranges of 1.0-900.0 μmol/L and 1.0-1200.0 μmol/L in a PBS buffer（pH = 7.0）respectively. The modified electrode was used for the detection of epinephrine and acetylcholine in real samples and found to produce satisfactory results. These results can be a proof that Dy2（WO4）3 nanoparticles can find promising applications in electrochemical sensors to be used for the analysis of（bio）chemical species.

关键词： Epinephrine Acetylcholine Dy2(WO4)3 nanoparticles Graphite screen printed electrode Rare earths

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Production of a polyclonal antibody to the VP26 nucleocapsid protein of white spot syndrome virus （wssv） and its use as a biosensor

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Frontiers of Chemical Science and Engineering 2012年第2期6卷 216-223页

作者： Suchera LOYPRASERT-THANANIMIT Akrapon SALEEDANG Proespichaya KANATHARANA Panote THAVARUNGKUL Wilaiwan CHOTIGEAT center for Genomics and Bioinformatics Research Faculty of SciencePrince of Songkla UniversitySongkhla 90112Thailand Department of Molecular Biotechnology and Bioinformatics Faculty of SciencePrince of Songkla UniversitySongkhla 90112Thailand trace analysis and biosensor Research center Prince of Songkla UniversitySongkhla 90112Thailand Department of Chemistry Faculty of SciencePrince of Songkla UniversitySongkhla 90112Thailand Department of Physics Faculty of SciencePrince of Songkla UniversitySongkhla 90112Thailand

White spot syndrome virus （WSSV） is a major cause of high mortality in cultured shrimp all over the world. VP26 is one of the structural proteins of WSSV that is assumed to assist in recognizing its host and assists the viral nucleocapsid to move toward the nucleus of the host cell. The objective of this work was to produce a polyclonal antibody against VP26 and use it as a biosensor. The recombinant VP26 protein （rVP26） was produced in E. coli （BL21）, purified and used for immunizing rabbits to obtain a polyclonal antibody. Western blot analysis confirmed that the antiserum had a specific immunoreac- tivity to the VP26 of WSSV. This VP26 antiserum was immobilized onto a gold electrode for use as the sensing surface to detect WSSV under a flow injection system. The impedance change in the presence of VP26 was monitored in real time. The sensitivity linear range of 160 160000 of the biosensor was in the copies of WSSV, indicating that it is good and sensitive for analysis of WSSV. The specificity of the biosensor was supported by the observation that no impedance change was detected even at high concentrations when using Yellow Head Virus （YHV）. This biosensor may be applied to monitor the amount of WSSV in water during shrimp cultivation.

关键词： recombinant protein polyclonal antibody label-free biosensor impedance white spot syndrome virus (WSSV)

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Voltammetric determination of venlafaxine as an antidepressant drug employing Gd_2O_3 nanoparticles graphite screen printed electrode

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Journal of Rare Earths 2019年第3期37卷 322-328页

作者： Hadi Beitollahi Shohreh Jahani Somayeh Tajik Mohammad Reza Ganjali Farnoush Faridbod Taher Alizadeh Environment Department Institute of Science and High Technology and Environmental Sciences Graduate University of Advanced Technology NanoBioElectrochemistry Research center Bam University of Medical Sciences center of excellence in Electrochemistry School of Chemistry College of Science University of Tehran biosensor Research center Endocrinology & Metabolism Molecular-Cellular Sciences Institute Tehran University of Medical Sciences Department of Analytical Chemistry Faculty of Chemistry College of Science University of Tehran

Graphite screen printed electrode modified with Gd_2 O_3 nanoparticles(Gd_2 O_3/SPE) was developed for the determination of venlafaxine(VF). The Gd_2 O_3 nanoparticles were thoroughly characterized by scanning electron microscopy(SEM), transmission electron microscopy(TEM) and X-ray diffraction(XRD) analyses. To study the electrochemical behaviour of venlafaxine cyclic voltammetry(CV), chronoamperometry(CHA)and differential pulse voltammetry(DPV) were employed. These studies reveal that the oxidation of venlafaxine is facilitated at Gd_2 O_3/SPE. After optimization of analytical conditions, analysis of venlafaxine using the modified electrode in 0.1 mol/L PBS(pH 7.0) demonstrates that the peak currents corresponding to venlafaxine vary linearly with its concentration in the range of 5.0 ×10^(-6)-9.0 × 10^(-4) mol/L. The detection limit(S/N = 3) of 2.1 × 10^(-7) mol/L is obtained for venlafaxine using DPV. The prepared modified electrode benefits from advantages such as simple preparation method, high sensitivity and low detection ***, the evaluation of practical applicability of this proposed method is successful in the identification of venlafaxine in pharmaceutical formulations, urine and water samples.

关键词： Venlafaxine Gd2O3 nanoparticles Electrochemical techniques Screen printed electrode Rare earths

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First finding of continental deep subduction in the Sesia Zone of the Western Alps and implications for subduction dynamics

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National Science Review 2023年第5期10卷 154-166页

作者： Yi-Xiang Chen Kun Zhou Qiang He Yong-Fei Zheng Hans-Peter Schertl Kun Chen CAS Key Laboratory of Crust-Mantle Materials and Environments School of Earth and Space SciencesUniversity of Science and Technology of China center of excellence for Comparative Planetology Chinese Academy of Sciences Institute of Geology Mineralogy and Geophysics Faculty of GeosciencesRuhr University Bochum

Continental deep subduction after the closure of large oceanic basins is commonly ascribed to the gravitational pull of the subducting oceanic ***,it is not clear how continental lithosphere adjacent to small oceanic basins was subducted to mantle *** Sesia Zone in the Western Alps provides an excellent target for exploration of subduction dynamics in such a tectonic *** we report the first finding of coesite in a jadeite-bearing orthogneiss from the Sesia Zone,providing the first evidence for deep subduction of the continental crust to mantle depths for ultrahigh-pressure(UHP)metamorphism in this *** coesite inclusions were identified by laser Raman spectroscopy in two garnet *** on zircon U-Pb dating and trace element analysis, the UHP metamorphic age was constrained to be 76.0 ±1.0 *** phase equilibrium modeling yields peak metamorphic pressures of2.8-3.3 GPa,demonstrating the continental deep subduction to mantle depths of>80 *** subducted continental crust was a rifted hyperextended continental margin,which was converted to the passive continental margin during seafloor spreading and then deeply subducted during the oblique convergence between the Adria microplate and Eurasian plate in the Late *** the slab pull could only play a limited role in closing small oceanic basins for continental collision,the distal push of either continental breakup or seafloor spreading is suggested as the major driving force for the deep subduction of continental crust in the Western ***,deep subduction of the continental crust bordering small oceanic basins would have been induced by the far-field stress of compression,whereas that bordering large oceanic basins was spontaneous due to the oceanic slab *** provides a new insight into the geodynamic me chanism of continental deep subduction.

关键词： coesite ultrahigh-pressure metamorphism continental deep subduction Western Alps far-field stress

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