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Spherical Packing Superlattices in Self-Assembly of Homogenous soft matter:Progresses and Potentials

Chinese Journal of Polymer Science 2023年第5期41卷 607-620,I0005页

作者： Yuchu Liu Huanyu Lei Qing-Yun Guo Xianyou Liu Xinghan Li Yuean Wu Weiyi Li Wei Zhang Geng Xin Liu Xiao-Yun Yan Stephen Z.D.Cheng South China Advanced Institute for soft matter Science and Technology School of Molecular Science and EngineeringSouth China University of TechnologyGuangzhou 510640China School of Polymer Science and Polymer Engineering The University of AkronAkron OH 44325-3909USA State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Center for Advanced Low-dimension MaterialsCollege of Material Science and EngineeringDonghua UniversityShanghai 201620China

The construction of complex superlattices using homogenous soft matter has great potential for the bottom-up fabrication of complex,nanoscale structures.This topic is not only interested in scientific exploring for new concepts of supramolecular crystals with nanometer in sizes,which is about thousand times larger in volumes than those of normal crystals,but also practically important to provide construction principles of metamaterials which are artificially structured materials for controlling and manipulating light,sound,and other physical behaviors.These systems have fast assembly kinetics and convenient processing procedures,making them ideal for large-scale superlattice production.In this perspective,we focus on recent developments in the construction of complex spherical packing superlattices using homogenous soft self-assemblies.We discuss the general mechanism of those formations of supramolecular motifs and provide an overview of the spherical packing superlattices self-assembled by homogenous soft matters based on different volume asymmetry.Additionally,we outline the potentials of utilizing this approach in constructing novel superlattices as well as its future challenges.

关键词： soft matter Self-assembly Spherical packing phases Superlattice Bottom-up construction

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Digital holography as metrology tool at micronanoscale for soft matter

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Light(Advanced Manufacturing) 2022年第1期3卷 128-153页

作者： Zhe Wang Lisa Miccio Sara Coppola Vittorio Bianco Pasquale Memmolo Volodymyr Tkachenko Vincenzo Ferraro Ernesto Di Maio Pier Luca Maffettone Pietro Ferraro CNR-ISASI Institute of Applied Sciences and Intelligent Systems"E.Caianiello"Via Campi Flegrei 3480078 PozzuoliNapoliItaly Dipartimento di Ingegneria Chimica dei Materiali e della Produzione Industriale Universitàdegli Studi di Napoli"Federico II"Piazzale Tecchio 8080125 NapoliItaly NEAPoLIS Numerical and Experimental Advanced Program on Liquids and Interface SystemsJoint Research Center CNR Universitàdegli Studi di Napoli"Federico II"NapoliItaly

The appearance of the first laser approximately 12 years after the invention of holography by Gabor(1948)revolutionized the field of optical metrology.In fact,the invention of holographic interferometry enabled the exploitation of interferometry on non-mirror surfaces and full-scale objects.The holography-based measurement methods has been implemented to several industrial systems or in support of R&D with the aim of improving new products in many fields(automotive,aerospace,electronics,etc.).To date,holography has been considered an important measurement tool for non-destructive inspection(NDI),strain-stress measurement,and vibration analysis at various engineering sites.Recently,the new paradigm of Industry4.0 has seen the introduction of new technologies and methods of processing materials as well as the development of manufacturing approaches for the realization of innovative products.For example,direct printing,additive,and bottom-up manufacturing processes are expected to involve new ways of making products in future,and most innovative fabrication processes will be based on the manipulation of soft matter(e.g.,starting from the liquid phase)that will be shaped at the nanoscale.The inherent characteristics of digital holography(DH)make it a powerful and accurate tool for the visualization and testing of final products,as well as for in situ and real-time monitoring and quantitative characterization of the processes involved during the fabrication cycle.This review aims to report on the most useful applications of soft matter,where the capabilities offered by DH,such as three-dimensional(3D)imaging,extended focus,3D tracking,full-field analysis,high sensitivity,and a wide range of measurements from nanometers to centimeters,permit completely non-invasive characterizations on a full-scale.Several holographic experimental results of typical samples are reported and discussed where DH plays a primary role as a tool gauge for soft matter.

关键词： Digital holography soft matter Microscopy Thin film Polymers Liquids Characterization Interferometry Inkjet printing

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A spin-based magnetic scanning microscope for in-situ strain tuning of soft matter

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Chinese Physics B 2023年第5期32卷 102-107页

作者：丁哲孙豫蒙王孟祺余佩郑宁冲臧一鹏王鹏飞王亚聂越峰石发展杜江峰 CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093China Jiangsu Key Laboratory of Artificial Functional Materials Nanjing UniversityNanjing 210093China College of Engineering and Applied Science Nanjing UniversityNanjing 210093China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China School of Biomedical Engineering and Suzhou Institute for Advanced Research University of Science and Technology of ChinaSuzhou 215123China

We present a magnetic scanning microscope equipped with a nitrogen-vacancy(NV) center scanning probe that has the ability to mechanically tune the strain of soft matter in-situ. The construction of the microscope and a continuous straintuning sample holder are discussed. An optically detected magnetic resonance protocol utilized in the imaging is described.In order to show the reliability of this microscope, the strain conduction is estimated with finite element simulation, and xray diffraction is required for calibration when freestanding crystal films are under consideration. A magnetic imaging result is displayed to demonstrate the nano-scale imaging capability. The microscope presented in this work is helpful in studying strain-coupled magnetic physics such as magnetic phase transition under strain and strain-tuned cycloidal orientation tilting.

关键词： nitrogen-vacancy(NV)center antiferromagnetism strain tuning soft matter

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Role of soft matter in the Sandwich Vein of Dragonfly Wing in Its Configuration and Aerodynamic Behaviors

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Journal of Bionic Engineering 2017年第3期14卷 557-566页

作者： Xishu Wang Zhihao Zhang Huaihui Ren Yinglong Chen Bisheng Wu Department of Engineering Mechanics Applied Mechanics Laboratory Tsinghua University Beijing 100084 China China Longyuan Power Group Corporation Limted China Goudian Beijing 100034 China Department of Mechanical Engineering Purdue University West Lafayette 47907 USA CSIRO Energy 71 Normanby Road Clayton VIC3168 Australia

The microstructure of the main longitudinal veins of the dragonfly wing and the aerodynamic behaviors of the wing were investigated in this paper. The microstructure of longitudinal vein presents two circumferential chitin layers and a protein-fiber soft layer. The dragonfly wing is corrugated due to the spatial arrangement of longitudinal veins. It was found that the corru- gation angle could significantly influence the lift/drag ratio across a range of attack angles by the wind tunnel experiments. The results of the finite element analysis indicate that the protein soft layer of vein facilitates the change of the corrugation angle by allowing substantial relative twisting deformation between two neighboring veins, which is not possible in veins without a soft sandwich layer.

关键词： dragonfly wing longitudinal vein sandwich structure soft matter corrugation behavior

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Toward Rational and Modular Molecular Design in soft matter Engineering

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Chinese Journal of Polymer Science 2015年第6期33卷 797-797,798-814页

作者：张文彬程正迪 Key Laboratory of Polymer Chemistry & Physics of Ministry of Education Center for Soft Matter Science and EngineeringCollege of Chemistry and Molecular EngineeringPeking University Department of Polymer Science College of Polymer Science and Polymer EngineeringThe University of Akron

This essay discusses some preliminary thoughts on the development of a rational and modular approach for molecular design in soft matter engineering and proposes ideas of structural and functional synthons for advanced functional materials. It echoes the Materials Genome Initiative by practicing a tentative retro-functional analysis （RFA） scheme. The importance of hierarchical structures in transferring and amplifying molecular functions into macroscopic properties is recognized and emphasized. According to the role of molecular segments in final materials, there are two types of building blocks： structural synthon and functional synthon. Guided by a specific structure for a desired function, these synthons can be modularly combined in various ways to construct molecular scaffolds. Detailed molecular structures are then deduced, designed and synthesized precisely and modularly. While the assembled structure and property may deviate from the original design, the study may allow further refinement of the molecular design toward the target function, The strategy has been used in the development of soft fullerene materials and other giant molecules. There are a few aspects that are not yet well addressed：（1） function and structure are not fully decoupled and （2） the assembled hierarchical structures are sensitive to secondary interactions and molecular geometries across different length scales. Nevertheless, the RFA approach provides a starting point and an alternative thinking pathway by provoking creativity with considerations from both chemistry and physics. This is particularly useful for engineering soft matters with supramolecular lattice formation, as in giant molecules, where the synthons are relatively independent of each other.

关键词： Molecular design Materials genome Molecular nanoparticles soft matter Synthon.

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MODIFIED SZABO'S WAVE EQUATION FOR ARBITRARILY FREQUENCY-DEPENDENT VISCOUS DISSIPATION IN soft matter WITH APPLICATIONS TO 3D ULTRASONIC IMAGING

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Acta Mechanica Solida Sinica 2012年第5期25卷 510-519页

作者： Xiaodi Zhang Wen Chen Chuanzeng Zhang Institute of soft matter Mechanics Department of Engineering MechanicsHohai UniversityNanjing 210098China Department of Civil Engineering University of SiegenPaul-Bonatz-Str.9-11D-57076 SiegenGermany

soft matters are observed anomalous viscosity behaviors often characterized by a power law frequency dependent attenuation in acoustic wave propagation. Recent decades have witnessed a fast growing research on developing various models for such anomalous viscosity behaviors among which one of the present authors proposed the modified Szabo＇s wave equation via the positive fractional derivative. The purpose of this study is to apply the modified Szabo＇s wave equation to simulate a recent ultrasonic imaging technique called the clinical amplitude- velocity reconstruction imaging （CARI） of breast tumors which are of typical soft tissue matters. Investigations have been made on the effects of the size and position of tumors on the quality of ultrasonic medical imaging. It is observed from numerical results that the sound pressure along the reflecting line, which indicates the detection results, varies obviously with sizes and lateral positions of tumors, but remains almost the same for different axial positions.

关键词： soft matter viscosity frequency-dependent dissipation modified Szabo＇s waveequation positive fractional derivative ultrasonic imaging

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Survival Reassessment at Tumor Recurrence in soft matter

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Open Journal of Modelling and Simulation 2022年第1期10卷 58-69页

作者： Irina Trifonova Stefan Z. Stefanov Specialized Hospital for Active Treatment in Oncology Sofia Bulgaria Electricity System Operator (ESO EAD) Sofia Bulgaria

The paper reassesses a survival at tumor recurrence in soft matter. First, the stability of structural motifs under shear in clusters of dipolar spheres is characterized. Next, there are introduced transitions between polymer knots and rhythms of these transitions are obtained. The sensor is built for these rhythms. Treatment, with a tensile force protocol, is modeled, when the tumor in soft matter is observed by the above sensor. Survival probability, at

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Survival at Tumor Recurrence in soft matter

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Open Journal of Biophysics 2021年第2期11卷 147-158页

作者： Irina Trifonova Galina Kurteva Stefan Z. Stefanov Specialized Hospital for Active Treatment in Oncology Sofia Bulgaria ESO EAD Sofia Bulgaria

Survival at tumor recurrence in soft matter, after chemotherapy, is assessed by RNA folding. It is shown that this recurrence is starting with development of a fluidlike globule;it changes the energy of soft matter;it proceeds as a resonant mixing;and at the end it causes diffusion. This diffusion is interpreted as metastasis in soft matter. A tumor memory is designed for its recurrence oscillations. These oscillations are marked as positive or negative according to their influence on life stabilization or destabilization. It is demonstrated that a tumor memorizes two types of recurrences. The intensity of chemotherapy in soft matter for a tumor with such memory is obtained. Survival at tumor recurrence in soft matter, after chemotherapy, is assigned to one of the five regions of the phase diagram of the “thermalized” tumor by microenvironment. To each of these regions is collated a breast cancer survival class. It is found that the survival at tumor recurrence in soft matter, after chemotherapy, well represents actual survival of 32 patients with breast cancer.

关键词： Survival Tumor Recurrence Life Stabilization Chemotherapy soft matter

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Adhesion and friction in hard and soft contacts: theory and experiment

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Friction 2021年第6期9卷 1688-1706页

作者： Valentin L.POPOV Qiang LI Iakov A.LYASHENKO Roman POHRT Technische Universität Berlin Berlin 10623Germany National Research Tomsk State University Tomsk 634050Russia Sumy State University Sumy 40007Ukraine

This paper is devoted to an analytical,numerical,and experimental analysis of adhesive contacts subjected to tangential motion.In particular,it addresses the phenomenon of instable,jerky movement of the boundary of the adhesive contact zone and its dependence on the surface roughness.We argue that the"adhesion instabilities"with instable movements of the contact boundary cause energy dissipation similarly to the elastic instabilities mechanism.This leads to different effective works of adhesion when the contact area expands and contracts.This effect is interpreted in terms of“friction”to the movement of the contact boundary.We consider two main contributions to friction:(a)boundary line contribution and(b)area contribution.In normal and rolling contacts,the only contribution is due to the boundary friction,while in sliding both contributions may be present.The boundary contribution prevails in very small,smooth,and hard contacts(as e.g.,diamond-like-carbon(DLC)coatings),while the area contribution is prevailing in large soft contacts.Simulations suggest that the friction due to adhesion instabilities is governed by"Johnson parameter".Experiments suggest that for soft bodies like rubber,the stresses in the contact area can be characterized by a constant critical value.Experiments were carried out using a setup allowing for observing the contact area with a camera placed under a soft transparent rubber layer.soft contacts show a great variety of instabilities when sliding with low velocity–depending on the indentation depth and the shape of the contacting bodies.These instabilities can be classified as"microscopic"caused by the roughness or chemical inhomogeneity of the surfaces and"macroscopic"which appear also in smooth contacts.The latter may be related to interface waves which are observed in large contacts or at small indentation depths.Numerical simulations were performed using the Boundary Element Method(BEM).

关键词： adhesion friction adhesion hysteresis Boundary Element Method(BEM) hard solids soft matter

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Transition Between Solid-like and Liquid-like States in soft Silica Suspensions

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Chemical Research in Chinese Universities 2004年第6期20卷 771-773页

作者： ANKang HUJi-fan SUNDe-jun QINHong-wei ZHANGJie HANTao ZHANGLing SchoolofPhysicsandMicroelectronics ShandongUniversityJinan250100P.R.China

The influences of silica volume fraction, electrolyte concentration and pH value upon the stress dependence of elastic modulus G′and viscous modulus G″ were investigated. The results show that the suspension transforms from a liquid-like state to a solid-like state with increasing the volume fraction of silica. Such a solid-like state can be transformed back into a liquid-like state under the application of a larger stress. At the higher volume fraction, the larger critical stress is required to induce the transition from solid-like to liquid-like state. As the electrolyte concentration decreases or pH value increases, the inter-particle force increases, which causes the state transition to occur at a higher stress.

关键词： soft matter State transition Suspension

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