scholarly journals A review on special wettability textiles: theoretical models, fabrication technologies and multifunctional applications

2017 ◽  
Vol 5 (1) ◽  
pp. 31-55 ◽  
Author(s):  
Shuhui Li ◽  
Jianying Huang ◽  
Zhong Chen ◽  
Guoqiang Chen ◽  
Yuekun Lai
Keyword(s):  
Theoretical Models ◽  
Characterization Methods ◽  
Potential Applications

In this review, we have briefly summarized the fundamental theoretical models and characterization methods of textile surfaces with special wettability, various fabrication technologies and potential applications.

Self-assembly mode and supramolecular framework of cyclopentanocucurbit[6]uril and aromatic amines

2021 ◽  
Vol 25 ◽  
Author(s):  
Jun Zheng ◽  
Yan Mei Jin ◽  
Xi Nan Yang ◽  
Lin Zhang ◽  
Dao Fa Jiang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Functional Materials ◽  
Supramolecular Interactions ◽  
X Ray Diffraction ◽  
Guest Molecules ◽  
Characterization Methods ◽  
Potential Applications ◽  
Non Covalent Interactions ◽  
Multi Level ◽  
Covalent Interactions

: Single-crystal X-ray diffraction analysis, nuclear magnetic resonance (NMR), and other characterization methods are used to characterize the complexes formed by cyclopentano-cucurbit[6]uril (abbreviated as CyP6Q[6]) as a host interacting with p-aminobenzenesulfonamide (G1), 4,4'-diaminobiphenyl (G2), and (E)-4,4'-diamino-1,2-diphenylethene (G3) as guests, respectively. The experimental results show that these three aromatic amine molecules have the same interaction mode with CyP6Q[6], interacting with its negatively electric potential portals. The supramolecular interactions include non-covalent interactions of hydrogen bonding and ion-dipole between host and guest molecules. CdCl2 acts as a structureinducing agent to form self-assemblies of multi-dimensional and multi-level supramolecular frameworks that may have potential applications in various functional materials.

scholarly journals Cardiovascular therapy through nanotechnology – how far are we still from bedside?

2014 ◽  
Vol 6 (2) ◽  
Author(s):  
Iwona Cicha ◽  
Christoph D. Garlichs ◽  
Christoph Alexiou
Keyword(s):  
New Technologies ◽  
New Products ◽  
Cardiovascular Disorders ◽  
Safety And Efficacy ◽  
Characterization Methods ◽  
Tailored Treatment ◽  
Cardiovascular Therapy ◽  
Potential Applications ◽  
Multiple Challenges ◽  
Widespread Interest

AbstractRecent years brought about a widespread interest in the potential applications of nanotechnology for the diagnostics and the therapy of human diseases. With its promise of disease-targeted, patient-tailored treatment and reduced side effects, nanomedicine brings hope for millions of patients suffering of non-communicable diseases such as cancer or cardiovascular disorders. However, the emergence of the complex, multicomponent products based on new technologies poses multiple challenges to successful approval in clinical practice. Regulatory and development considerations, including properties of the components, reproducible manufacturing and appropriate characterization methods, as well as nanodrugs’ safety and efficacy are critical for rapid marketing of the new products. This review discusses the recent advances in cardiovascular applications of nanotechnologies and highlights the challenges that must be overcome in order to fill the gap existing between the promising bench trials and the successful bedside applications.

Tribology of surface-grafted polymer brushes

2016 ◽  
Vol 1 (2) ◽  
pp. 141-154 ◽  
Author(s):  
Piotr Mocny ◽  
Harm-Anton Klok
Keyword(s):  
Tribological Properties ◽  
Polymer Brushes ◽  
Lubrication Mechanism ◽  
Characterization Methods ◽  
Grafted Polymer ◽  
Potential Applications ◽  
Boundary Lubricants

The tribological properties, lubrication mechanism, characterization methods and potential applications of surface-attached polymer-based boundary lubricants are reviewed.

Molecular modeling of porphyrin-based conjugates and subphthalocyanine aggregates

2009 ◽  
Vol 13 (04n05) ◽  
pp. 494-508 ◽  
Author(s):  
Víctor R. Ferro ◽  
Luis A. Poveda ◽  
Rafael Lopez ◽  
José M. García de la Vega
Keyword(s):  
Charge Separation ◽  
Theoretical Study ◽  
Theoretical Models ◽  
Structural Features ◽  
New Materials ◽  
Potential Applications ◽  
Donor Acceptor ◽  
The Stability ◽  
Porphyrin Dimers

A theoretical study was carried out on both porphyrin-based conjugates (with interest in the so-called artificial photosynthesis) and subphthalocyanine aggregates (with potential applications as new materials for optoelectronics, solar energy and other uses). A simple molecular orbital model for studying the role of the spacer groups in the electron transfer in porphyrin-quinone conjugates was developed. The influence of the π-π interaction, hydrogen association and covalent linkage on the stability and structural features in porphyrin-porphyrin complexes as well as the charge separation in donor-acceptor porphyrin dimers, were reproduced. Theoretical models suggest the potential feasibility of SubPc's aggregative processes leading to nanometer-sized fully aromatic fullerene-like molecular architectures.

Magnesium Based Biodegradable Metallic Implant Materials: Corrosion Control and Evaluation of Surface Coatings

2019 ◽  
Vol 9 (1) ◽  
pp. 3-27
Author(s):  
Jessica Gayle ◽  
Anil Mahapatro
Keyword(s):  
Magnesium Alloys ◽  
Corrosion Behaviour ◽  
Composite Coatings ◽  
The United States ◽  
Corrosion Testing ◽  
Coating Materials ◽  
Characterization Methods ◽  
Implant Materials ◽  
Potential Applications

Background:Magnesium and magnesium alloys are currently being explored for biodegradable metallic implants. Magnesium’s biocompatibility, low density, and mechanical properties could offer advantages in the development of low-bearing orthopedic prosthesis and cardiovascular stent materials.Objective:Magnesium’s susceptibility to corrosion and increased hydrogen evolution in vivo compromises the success of its potential applications. Various strategies have been pursued to control and subsequently evaluate degradation.Methods:This review provides a broad overview of magnesium-based implant materials. Potential coating materials, coating techniques, corrosion testing, and characterization methods for coated magnesium alloys are also discussed.Results:Various technologies and materials are available for coating magnesium to control and evaluate degradation. Polymeric, ceramic, metallic, and composite coatings have successfully been coated onto magnesium to control its corrosion behaviour. Several technologies are available to carry out the coatings and established methodologies exist for corrosion testing. A few magnesium-based products have emerged in international (European Union) markets and it is foreseen that similar products will be introduced in the United States in the near future.Conclusion:Overall, many coated magnesium materials for biomedical applications are predominantly in the research stage with cardiac stent materials and orthopaedic prosthesis making great strides.

scholarly journals Surface Tension of GaInSnBiZn Liquid High-entropy Alloy

2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Shirong Zhu ◽  
Lu Liu ◽  
Qiaoli Lin
Keyword(s):  
Surface Tension ◽  
Thermodynamic Characteristics ◽  
Surface Concentration ◽  
Theoretical Models ◽  
High Entropy Alloy ◽  
Alloy Formation ◽  
High Entropy ◽  
General Solution Model ◽  
Alloy Material ◽  
Potential Applications

As an emerging alloy material, high-entropy alloy has potential applications that distinguish it from traditional alloys due to its special physicochemical properties. In this work, a low melting point GaInSnBiZn high-entropy alloy was designed based on Miedema model, and its surface tension was measured by the continuous pendant-drop method. The results show that the intrinsic surface tension of GaInSnBiZn high-entropy alloy at 80 °C is 545±5 mN/m, and the surface tension of the liquid alloy is significantly reduced by the formation of surface oxide film. The surface tension of GaInSnBiZn high-entropy alloy was analyzed by using theoretical models (Guggenheim model, GSM (general solution) model and Butler model), and the thermodynamic characteristics of the surface tension formation were further verified by combining with thermodynamic calculations, among which the calculated results of Butler model were in good agreement with the experimental data. Meanwhile, it is found that the surface concentration of Bi in the alloy is much larger than the nominal concentration of its bulk phase, which contributes the most to the surface tension of the alloy, however, it contributes the least to the entropy of the alloy formation in combination with the Butler model.

Absorption-induced Deformations of Nanofiber Yarns and Nanofibrous Webs

2008 ◽  
Vol 1129 ◽  
Author(s):  
Daria Monaenkova ◽  
Taras Andrukh ◽  
Kostya Kornev
Keyword(s):  
Experimental Data ◽  
High Surface ◽  
Absorption Capacity ◽  
Absorption Process ◽  
Minute Amount ◽  
Characterization Methods ◽  
Yarn Diameter ◽  
Different Types ◽  
Potential Applications ◽  
High Flexibility

AbstractCurrent advances in manufacturing of nanotubular and nanofibrous materials with high surface- to - volume ratios call for the development of adequate characterization methods and predictive estimates of the materials absorption capacity. Extremely high flexibility of these materials poses a challenge: their pore structure easily changes upon contact with the fluid in question. One more complication is that the absorption process is sufficiently fast: one hundred micron droplets disappear in milliseconds. This paper sets a physical basis for analyses of absorption processes in nanotubular and nanofibrous materials. As an example, we study absorption of droplets by yarns made of nanofibers and nanofibrous webs. We show that absorption can induce different types of deformations: visible deformations of the yarn profile and deformations of the yarn diameter/length caused by the capillary forces. Using experimental data and theory, we estimate elastic and transport characteristics of the nanofibrous materials. The reported experiments and proposed theory open a new area of research on absorption-induced deformations of nanotubular and nanofibrous materials and show their potential applications as sensors to probe minute amount of absorbable liquids.

scholarly journals Grain Rotation in Plastic Deformation

2019 ◽  
Vol 3 (3) ◽  
pp. 17 ◽  
Author(s):  
Bin Chen ◽  
Linli Zhu ◽  
Yunchang Xin ◽  
Jialin Lei
Keyword(s):  
Plastic Deformation ◽  
Grain Boundary ◽  
Materials Science ◽  
Theoretical Models ◽  
Grain Boundary Sliding ◽  
Experimental Investigations ◽  
Characterization Methods ◽  
Grain Rotation ◽  
X Ray ◽  
Dynamics Simulations

The plastic deformation behaviors of crystalline materials are usually determined by lattice dislocations. However, below a certain particle or grain size, focus is placed on the grain-boundary-mediated mechanisms (e.g., grain rotation, grain boundary sliding, and diffusion), which has been observed during recrystallization, grain growth, and plastic deformation. However, the underlying mechanisms of grain rotation remain to be studied. In this article, we review the theoretical models, molecular dynamics simulations, and experimental investigations on grain rotation. Especially, the development of in situ transmission electron microscopy (TEM) and X-ray characterization methods for probing grain boundary processes during plastic deformation provides a better understanding of the mechanisms of grain rotation. Moreover, the ability to acquire high-quality X-ray diffraction patterns from individual nanograins is expected to find broad applications in various fields such as physics, chemistry, materials science, physics, and nanoscience.

scholarly journals Advances on Food-Derived Peptidic Antioxidants—A Review

Antioxidants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 799 ◽  
Author(s):  
Mingfei Pan ◽  
Kaixin Liu ◽  
Jingying Yang ◽  
Shengmiao Liu ◽  
Shan Wang ◽  
...  
Keyword(s):  
Food Industry ◽  
Food System ◽  
Oxidation Process ◽  
The Body ◽  
Commercial Application ◽  
Great Activity ◽  
Purification And Characterization ◽  
Characterization Methods ◽  
Potential Applications ◽  
The Stability

The oxidation process is considered to be the main reason behind human aging, human degenerative diseases and food quality degradation. Food-derived peptidic antioxidants (PAs) have wide sources and great activity, and have broad application prospects in removing excess reactive oxygen species in the body, anti-aging and preventing and treating diseases related to oxidative stress. On the other hand, PAs are expected to inhibit the lipid peroxidation of foods and increase the stability of the food system in the food industry. However, the production pathways and action mechanism of food-derived PAs are diverse, which makes it is difficult to evaluate the performance of PAs which is why the commercial application of PAs is still in its infancy. This article focuses on reviewing the preparation, purification, and characterization methods of food-derived PAs, and expounds the latest progress in performance evaluation and potential applications, in order to provide an effective reference for subsequent related research of PAs.

scholarly journals Nanocomposite Coatings: Preparation, Characterization, Properties, and Applications

2018 ◽  
Vol 2018 ◽  
pp. 1-19 ◽  
Author(s):  
Phuong Nguyen-Tri ◽  
Tuan Anh Nguyen ◽  
Pascal Carriere ◽  
Cuong Ngo Xuan
Keyword(s):  
Metallic Matrix ◽  
High Hardness ◽  
Diffusion Path ◽  
Barrier Properties ◽  
Preparative Method ◽  
Nanocomposite Coating ◽  
Nanocomposite Coatings ◽  
Characterization Methods ◽  
Properties And Characterization ◽  
Potential Applications

Incorporation of nanofillers into the organic coatings might enhance their barrier performance, by decreasing the porosity and zigzagging the diffusion path for deleterious species. Thus, the coatings containing nanofillers are expected to have significant barrier properties for corrosion protection and reduce the trend for the coating to blister or delaminate. On the other hand, high hardness could be obtained for metallic coatings by producing the hard nanocrystalline phases within a metallic matrix. This article presents a review on recent development of nanocomposite coatings, providing an overview of nanocomposite coatings in various aspects dealing with the classification, preparative method, the nanocomposite coating properties, and characterization methods. It covers potential applications in areas such as the anticorrosion, antiwear, superhydrophobic area, self-cleaning, antifouling/antibacterial area, and electronics. Finally, conclusion and future trends will be also reported.

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