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Mechanism and characterization of microplastic aging process: A review

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1700-6

Abstract:

● Methods for estimating the aging of environmental micro-plastics were highlighted.

Keywords： Microplastics     Aging     Degradation     Characterization     Mechanism    

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An experimental characterization of human torso motion

Daniele CAFOLLA,I-Ming CHEN,Marco CECCARELLI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 311-325 doi: 10.1007/s11465-015-0352-z

Abstract:

The torso plays an important role in the human-like operation of humanoids. In this paper, a method is proposed to analyze the behavior of the human torso by using inertial and magnetic sensing tools. Experiments are conducted to characterize the motion performance of the human torso during daily routine operations. Furthermore, the forces acting on the human body during these operations are evaluated to design and validate the performance of a humanoid robot.

Keywords： experimental biomechanics     human torso     analysis     inertial sensor     characterization    

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Microplastic and Nanoplastic Pollution: Characterization, Transport, Fate, and Remediation Strategies

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 12-12 doi: 10.1007/s11783-021-1446-y

Abstract: Plastics continues to have a critical and essential role in human society such as food packing, product packages and building materials. In the meantime, it has been recognized as a global sustainability priority to study and mitigate pollution of plastics and the associated unknown impacts from ultrafine plastic particles. Microplastic (<5 mm) particles, for instance, have been detected in the aquatic environment globally and have raised scientific interests and environmental concerns. Microplastics (MPs) can enter rivers through a variety of pathways (e.g., wastewater effluent, breakdown of plastic debris) and can negatively impact aquatic organisms through both direct injection with food and indirect contamination from absorbed toxins. MPs can absorb heavy metals, pathogens, and organic contaminants, mainly persistent organic pollutants (POPs) that can be ingested by organisms and introduced into the food web. Meanwhile, MPs may also release potentially toxic substances (e.g., plasticizers, flame retardants and antimicrobial agents) during weathering and degradation. An increasing number of papers are being published during the last years related to the effects of MPs as well as with synergistic effects when associated with MPs and their byproducts such as nanometer sized plastics or nanoplastics. This special issue successfully garnered a collection of research articles that addressed various topics of microplastic or nanoplastic pollution, characteristic, and environmental fate in the water environment. Particularly, this issue reported the seasonable occurrence and distribution of microplastics in different regions (e.g., China and India) from high-latitude nature reserve to sediments and coastal marine environments. Moreover, new sampling and analytical methodologies (e.g., fluorescent labeling) to identify MPs in diver matrixes (e.g., wastewater, sediment, and biota) are critically reviewed. The information is critical for scientists, business leaders, legislators, and the public are to explore and develop solutions that lessen society’s plastic footprint. We thank all authors, reviewers, and editorial staff of FESE for their efforts and contributions to this special issue. Guest Editors: Wen Zhang Department of Civil and Environmental Engineering, New Jersey Institute of Technology (wen.zhang@njit.edu) Melissa Pasquinelli College of Natural Resources, North Carolina State University (melissa_pasquinelli@ncsu.edu) Yang Li School of the Environment Beijing Normal University (liyang_bnu@bnu.edu.cn)
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Preparation and characterization of ZnO/ZnS hybrid photocatalysts via microwave-hydrothermal method

ZHAO Jinglian, WANG Xinping, ZHAO Liang

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 415-420 doi: 10.1007/s11783-008-0056-2

Abstract: Preparation and characterization of nanosized ZnO/ZnS hybrid photocatalysts were studied in this paper

Keywords： large-scale     hexagonal     misdistribution     characterization     nanocomposite    

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Synthesis and characterization of norfloxacin biomonomer

Shengxiong DONG, Qiaoping CHEN, Hongfang XIE, Jianhua HUANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 55-59 doi: 10.1007/s11705-010-0537-2

Abstract: A novel drug agent named norfloxacin biomonomer was developed in order to solve the problem of low drug content, uneven drug distribution, low molecular weight, and wide molecular weight distribution of polymer drug, based on polyurethane, which was used as an antibacterial agent to control the bacterial infection associated with biofilm formation on polymeric materials used in biologic environments. In this research, norfloxacin biomonomer was synthesized by esterifying the compound of norfloxacin. High-performance liquid chromatography system was used to analyze the purity of the final product and intermediate products, and Fourier transform infrared spectrometer and mass spectrum were used to verify the final product and intermediate products. The results showed that the objective product was developed successfully. The final product of norfloxacin biomonomer could be incorporated into the polyurethane as chain extender.

Keywords： norfloxacin     biomonomer     synthesis     characterization    

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Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0756-0

Abstract: In this study, a general kinetostatic modeling and morphology characterization methodology that comprehensivelyconsidered to deduce a comprehensive kinetostatic model enabled with the capacity of accurate morphology characterization

Keywords： kinetostatic modeling     morphology characterization     variable friction     continuum robots     in-situ   

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Mechanical properties characterization of different types of masonry infill walls

André FURTADO, Hugo RODRIGUES, António ARÊDE, Humberto VARUM

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 411-434 doi: 10.1007/s11709-019-0602-y

Abstract: The primary objective of this paper is to present an extensive experimental campaign of mechanical characterization

Keywords： masonry infill walls     experimental characterization     compression strength     shear diagonal strength     flexural    

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Design, fabrication, and characterization of hierarchical mechanical metamaterials

Frontiers of Mechanical Engineering 2024, Volume 19, Issue 1, doi: 10.1007/s11465-023-0776-9

Abstract: Natural mechanical materials, such as bamboo and bone, often exhibit superior specific mechanical properties due to their hierarchical porous architectures. Using the principle of hierarchy as inspiration can facilitate the development of hierarchical mechanical metamaterials (HMMs) across multiple length scales via 3D printing. In this work, we propose self-similar HMMs that combine octet-truss (OCT) architecture as the first and second orders, with cubic architecture as the third or more orders. These HMMs were fabricated using stereolithography 3D printing, with the length sizes ranging from approximately 200 µm to the centimeter scale. The compressive stress–strain behaviors of HMMs exhibit a zigzag characteristic, and the toughness and energy absorption can be significantly enhanced by the hierarchical architecture. The compressive moduli are comparable to that of natural materials, and the strengths are superior to that of most polymer/metal foams, alumina hollow/carbon lattices, and other natural materials. Furthermore, the flexural stress–strain curves exhibit a nonlinear behavior, which can be attributed to the hierarchical architecture and local damage propagation. The relatively high mechanical properties can be attributed to the synergistic effect of the stretch-dominated OCT architecture and the bending-dominated cube architecture. Lastly, an ultralight HMM-integrated unmanned aerial vehicle (HMM-UAV) was successfully designed and printed. The HMM-UAV is ~85% lighter than its bulk counterpart, remarkably extending the flight duration time (~53%). This work not only provides an effective design strategy for HMMs but also further expands the application benchmark of HMMs.

Keywords： 3D printing     mechanical metamaterials     hierarchical architecture     mechanical behavior     unmanned aerial vehicle (UAV)    

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Recent advances in gold-metal oxide core-shell nanoparticles: Synthesis, characterization, and their

Michelle Lukosi,Huiyuan Zhu,Sheng Dai

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 39-56 doi: 10.1007/s11705-015-1551-1

Abstract: This review covers the synthesis and characterization of gold-metal oxide core-shell structures, as well

Keywords： core-shell     characterization     core-shell structure     Different     stability    

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Retraction note to: Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd Kievani,Milad Edraki

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 440-440 doi: 10.1007/s11705-016-1573-3

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Challenges in characterization of nanoplastics in the environment

Wen Zhang1 , Qi Wang2 , Hao Chen2

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 11-11 doi: 10.1007/s11783-021-1445-z

Abstract: critically examined the current state of art techniques that are exclusively reported for nanoplastic characterization
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Review of characterization and modeling of polymer electrolyte fuel cell catalyst layer: The blessing

Jun HUANG, Zhe LI, Jianbo ZHANG

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 334-364 doi: 10.1007/s11708-017-0490-6

Abstract: This paper addresses the characterization and modeling of both the conventional ionomer-impregnated catalyst

Keywords： polymer electrolyte fuel cell     ultra-thin catalyst layer     electrostatic interactions     characterization and    

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Review on design, preparation and performance characterization of gelled fuels for advanced propulsion

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 819-837 doi: 10.1007/s11705-021-2122-2

Abstract: This review provides an overview on design, preparation and performance characterization of gelled fuels

Keywords： gelled fuels     high-energy-density fuels     rheological properties     atomization     combustion    

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Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd KIEVANI, Milad EDRAKI

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1,   Pages 40-45 doi: 10.1007/s11705-015-1505-7

Abstract: Nano-clay based pigments (NCP) are new type of pigments composed of organic dyes and layered silicate-clay nano-particles, and have already been used in polymeric coatings to improve mechanical thermal and stability properties. In this paper, the basic blue 41(BB41) was intercalated into Na - montmorillonite in an aqueous medium. The dye-intercalated montmorillonite was centrifuged, dried, and milled to prepare the nanopigment particles. X-ray diffraction showed an increase in the basal spacing, thus confirming intercalation of the BB41 molecules within the nanostructures of the interlayer spaces. Fourier transform infrared spectroscopy was used for identifying the functional groups and chemical bounding of Na -montmorillonite, BB41 and montmorillonite-BB41. The morphology of NCP was also studied by transmission electron microscopy. Finally, thermo-gravimetric analysis and differential thermograms suggested the thermal stability of the intercalated dye was improved.

Keywords： nanopigment     layered silicate     cationic dye     thermal properties    

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Simultaneous detection and characterization of toxigenic：Clostridium difficile directly from clinical

Hanjiang Lai, Chen Huang, Jian Cai, Julian Ye, Jun She, Yi Zheng, Liqian Wang, Yelin Wei, Weijia Fang, Xianjun Wang, Yi-Wei Tang, Yun Luo, Dazhi Jin

Frontiers of Medicine 2018, Volume 12, Issue 2,   Pages 196-205 doi: 10.1007/s11684-017-0560-5

Abstract: >cdtA, cdtB, and a deletion in tcdC for simultaneous detection and characterization

Keywords： Clostridium difficile     multiplex PCR     capillary electrophoresis     detection     characterization    

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Title Author Date Type Operation

Mechanism and characterization of microplastic aging process: A review

Journal Article

An experimental characterization of human torso motion

Daniele CAFOLLA,I-Ming CHEN,Marco CECCARELLI

Journal Article

Microplastic and Nanoplastic Pollution: Characterization, Transport, Fate, and Remediation Strategies

Journal Article

Preparation and characterization of ZnO/ZnS hybrid photocatalysts via microwave-hydrothermal method

ZHAO Jinglian, WANG Xinping, ZHAO Liang

Journal Article

Synthesis and characterization of norfloxacin biomonomer

Shengxiong DONG, Qiaoping CHEN, Hongfang XIE, Jianhua HUANG

Journal Article

Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots

Journal Article

Mechanical properties characterization of different types of masonry infill walls

André FURTADO, Hugo RODRIGUES, António ARÊDE, Humberto VARUM

Journal Article

Design, fabrication, and characterization of hierarchical mechanical metamaterials

Journal Article

Recent advances in gold-metal oxide core-shell nanoparticles: Synthesis, characterization, and their

Michelle Lukosi,Huiyuan Zhu,Sheng Dai

Journal Article

Retraction note to: Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd Kievani,Milad Edraki

Journal Article

Challenges in characterization of nanoplastics in the environment

Wen Zhang1 , Qi Wang2 , Hao Chen2

Journal Article

Review of characterization and modeling of polymer electrolyte fuel cell catalyst layer: The blessing

Jun HUANG, Zhe LI, Jianbo ZHANG

Journal Article

Review on design, preparation and performance characterization of gelled fuels for advanced propulsion

Journal Article

Synthesis, characterization and assessment thermal properties of clay based nanopigments

Mohammad Banimahd KIEVANI, Milad EDRAKI

Journal Article

Simultaneous detection and characterization of toxigenic：Clostridium difficile directly from clinical

Hanjiang Lai, Chen Huang, Jian Cai, Julian Ye, Jun She, Yi Zheng, Liqian Wang, Yelin Wei, Weijia Fang, Xianjun Wang, Yi-Wei Tang, Yun Luo, Dazhi Jin

Journal Article