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A Review on Electrospinning as Versatile Supports for Diverse Nanofibers and Their Applications in Environmental Sensing

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Advanced Fiber Materials 2023年第2期5卷 429-460页

作者： Jialing Song Xuanhao Lin Liang Ying Ee Sam Fong Yau Li Manhong Huang College of Environmental Science and Engineering Key Laboratory of Science and Technology of Eco‑TextileMinistry of EducationDonghua UniversityShanghai 201620People’s Republic of China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092People’s Republic of China Department of Chemistry National University of Singapore3 Science Drive 3Singapore 117543Singapore State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua UniversityShanghai 201620People’s Republic of China National University of Singapore Environmental Research Institute T Lab Bldg5A Engineering Drive 1Singapore 117411Singapore

Rapid industrialization is accompanied by the deterioration of the natural environment.The deepening crisis associated with the ecological environment has garnered widespread attention toward strengthening environmental monitoring and protection.Environmental sensors are one of the key technologies for environmental monitoring,ultimately enabling environmental protection.In recent decades,micro/nanomaterials have been widely studied and applied in environmental sensing owing to their unique dimensional properties.Electrospinning has been developed and adopted as a facile,quick,and effective technology to produce continuous micro-and nanofiber materials.The technology has advanced rapidly and become one of the hotspots in the field of nanomaterials research.Environmental sensors made from electrospun nanofibers possess many advantages,such as having a porous structure and high specific surface area,which effectively improve their performance in environmental sensing.Furthermore,by introducing functional nanomaterials(carbon nanotubes,metal oxides,conjugated polymers,etc.)into electrospun fibers,synergistic effects between different materials can be utilized to improve the catalytic activity and sensitivity of the sensors.In this review,we aimed to outline the progress of research over the past decade on electrospinning nanofibers with different morphologies and functional characteristics in environmental sensors.

关键词： Electrospinning Nanofibers Environmental sensing functional nanomaterials

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Improved anticorrosion performance of mixed valence Mnmodified ZnO dilute magnetic solid solution with multilevel selfassembled network structure

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Nano Research 2022年第7期15卷 6590-6600页

作者： Yi-Xiang Chen Dan Zhou Xiao-Jiao Guo Xiu Yang Si-Rui Zhao Yi Lu Jin-Ku Liu Key Laboratory for Advanced Materials School of Chemistry and Molecular EngineeringEast China University of Science and TechnologyShanghai 200237China Material Corrosion and Protection Key Laboratory of Sichuan ProvinceZigong 643000China

The design and performance prediction of efficient anticorrosion materials is a work full of value,novelty,and challenges.In this work,from the perspective of nanostructure and composition,ZnO-based dilute magnetic solid solution(DMSs)with hydrophobic micronano network structure was synthesized through the self-induced effect of raw materials,the impact-resistant network structure,complex micro-channels,and densely nested layers resisted electrolyte intrusion.Further,the doping of mixed valence Mn element endowed the solid solution with dilute magnetic properties,so the Lorentz force from micromagnetic field changed the movement path of electrons produced by the anode reaction to improve the corrosion inhibition ability of the protective layer.Under the synergy of morphology and magnetism,the corrosion resistance of the DMSs materials was 555.4%and 173.8%higher than that of epoxy resin and ZnO shielding layer,respectively.Besides,a valuable phenomenon was found that the photocatalytic property of DMSs materials was positively correlated with their corrosive defense.In conclusion,this research provided a novel design idea for new high-efficiency anticorrosion materials.

关键词： Mn-modified ZnO dilute magnetic solid solution network nanostructure anticorrosion functional nanomaterials

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SERS Amplification Assays of Nucleic Acids and Proteins with functional nanomaterials

SERS Amplification Assays of Nucleic Acids and Proteins with...

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中国化学会第30届学术年会

作者： Ronghua Yang Jing Zheng Muling Shi Qifeng Zhou School of Chemistry and Biological Engineering Changsha University of Science and Technology College of Chemistry and Chemical Engineering Hunan University

Surface-enhanced Raman scattering(SERS) has become one of the most valuable tools in chemistry, biology, and materials science. In particular, by integrating the extremely strong Raman enhancement of metallic substrates and the highly specific recognition ability of biomolecules, SERS has been used to create many novel bioanalytical tools, such as DNA sequence detection, protein assay, and bacterial or pathogen identification. In the recent years, we aim to develop SERS amplification assays of nucleic acids and proteins with functional nanomaterials, which include:1) Combing with DNA nanomachine-functionalized silver nanoparticles to construct reversible and regenerable SERS-active substrate, and thus attain ultrasensitive biomolecules sensing. 2) Combing with nanomaterials, such as single-walled carbon nanotube, to achieve micro RNA and ATP detection. 3) Combing with ions-mediated cascade amplification, thus realize single nucleotide polymorphism and telomerase detection.8 These new SERS amplification assays might open up new opportunities in the application of functional nucleic acid in biosensing.

关键词： Surface-enhanced Raman scattering functional nanomaterials Biosensing

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