scholarly journals Chitosan-Based Composite Materials for Prospective Hemostatic Applications

Marine Drugs ◽  
2018 ◽  
Vol 16 (8) ◽  
pp. 273 ◽  
Author(s):  
Zhang Hu ◽  
Dong-Ying Zhang ◽  
Si-Tong Lu ◽  
Pu-Wang Li ◽  
Si-Dong Li
Keyword(s):  
Composite Materials ◽  
Research And Development ◽  
Chemical Industry ◽  
Food Industry ◽  
Future Perspectives ◽  
Multiple Forms

Effective hemostasis is vital to reduce the pain and mortality of patients, and the research and development of hemostatic materials are prerequisite for effective hemostasis. Chitosan (CS), with good biodegradability, biocompatibility and non-toxicity, has been widely applied in bio-medicine, the chemical industry, the food industry and cosmetics. The excellent hemostatic properties of CS have been extensively studied. As a result, chitosan-based composite hemostatic materials have been emerging. In this review, the hemostatic mechanism of chitosan is briefly discussed, and then the progress of research on chitosan-based composite hemostatic materials with multiple forms such as films, sponges, hydrogels, particles and fibers are introduced. Finally, future perspectives of chitosan-based composite hemostatic materials are given. The objective of this review is to provide a reference for further research and development of effective hemostatic materials.

scholarly journals Nanoengineering in biomedicine: Current development and future perspectives

2020 ◽  
Vol 9 (1) ◽  
pp. 700-715 ◽  
Author(s):  
Wei Jian ◽  
David Hui ◽  
Denvid Lau
Keyword(s):  
Molecular Dynamics ◽  
Research And Development ◽  
Molecular Dynamics Simulations ◽  
Material Properties ◽  
Biomedical Applications ◽  
Metallic Materials ◽  
Future Perspectives ◽  
Current Development ◽  
Materials Used ◽  
Dynamics Simulations

AbstractRecent advances in biomedicine largely rely on the development in nanoengineering. As the access to unique properties in biomaterials is not readily available from traditional techniques, the nanoengineering becomes an effective approach for research and development, by which the performance as well as the functionalities of biomaterials has been greatly improved and enriched. This review focuses on the main materials used in biomedicine, including metallic materials, polymers, and nanocomposites, as well as the major applications of nanoengineering in developing biomedical treatments and techniques. Research that provides an in-depth understanding of material properties and efficient enhancement of material performance using molecular dynamics simulations from the nanoengineering perspective are discussed. The advanced techniques which facilitate nanoengineering in biomedical applications are also presented to inspire further improvement in the future. Furthermore, the potential challenges of nanoengineering in biomedicine are evaluated by summarizing concerned issues and possible solutions.

scholarly journals Strategies for Success as an Industrial Chemist

2021 ◽  
Vol 43 (3) ◽  
pp. 4-7
Author(s):  
Carolyn Ribes
Keyword(s):  
Supply Chain ◽  
Research And Development ◽  
Affordable Housing ◽  
Chemical Industry ◽  
Clean Water ◽  
Technical Service ◽  
Sustainable Infrastructure ◽  
Industrial Companies ◽  
Global Challenges ◽  
Industrial Chemist

Abstract Chemists find careers in the chemical industry very rewarding. The focus is on applied chemistry and in delivering solutions that meet customer needs, whether the customers are other industrial companies or individual consumers. Chemistry provides solutions to the global challenges facing our society, including the need for clean water, nutritious food, improved healthcare and wellness, affordable housing, and sustainable infrastructure. Within industry, chemists serve in a wide variety of roles. The largest fraction may be in research and development (R&D), although opportunities in manufacturing, technical service and development, supply chain, marketing, intellectual property protection, sales and commercial functions, and many other options are also open to chemists who want to apply their skills [1]. I was drawn to a career in industry because I’m results oriented and I wanted my work to be applied immediately and have an impact.

scholarly journals Composite Materials and Their Fiber Reinforcement Technology in Aerospace Field

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Kailin Zhou
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Research And Development ◽  
Carbon Fibers ◽  
Fiber Reinforcement ◽  
Space Structures ◽  
Advanced Composite ◽  
Advanced Composite Materials ◽  
Composites Materials ◽  
Definition Of

The need to reduce the overall weight of aeronautical and space structures while preserving or even improving their performances make the research and development in the field of advanced composite materials necessary for the advancement of aerospace technologies. This paper provides an overview of composite materials and their fiber reinforcement technology in aerospace field. We discuss the reasons for aircraft manufacturers and airlines to use composites and illustrate the definition of composite material. Then, we list the advantages and disadvantage of composite materials and cite different fiber reinforcement technologies of carbon fibers, aramid fiber, UHMWPE, etc. At last, we summarize the present and future applications of composites materials in aerospace and other civil fields. A conclusion is drawn that in the future, composite materials are set for their development, while continually decreasing its costs is still an important task.

The Impact of the Value-Added Tax Rate on the Entrepreneurial Behavior Model (On the Example of Palm Oil Importers)

2020 ◽  
pp. 181-197
Author(s):  
Anna V. Lozhnikova ◽  
◽  
Aleksandr L. Bogdanov ◽  
Tatiana G. Vayderova ◽  
Larisa N. Spivakova ◽  
...  
Keyword(s):  
Palm Oil ◽  
Chemical Industry ◽  
Food Production ◽  
Food Industry ◽  
Value Added ◽  
Entrepreneurial Behavior ◽  
Value Added Tax ◽  
Dairy Food ◽  
Tax Rate ◽  
The Impact

The article discusses the problem of the reducing life quality of Russians in the new conditions of the market economy. The Russian phenomenon of the use of “palm oil” as a priority raw material in food production is analyzed against the decrease in its use in the EU countriesand against the expansion of the daily diet of the Chinese due to increased dairy food consumption. Opposing points of view of key industry associations (the Dairy Union of Russia and the Fat and Oil Union of Russia) have been identified and are presented in the context of palm oil use in dairy food production. The results of a statistical study of the demand for palm oil from Russian importers against the background of an increase in the value-added tax rate from 10 to 20% in October 2019 are presented. The data of customs statistics on palm oil imports were analyzed in the context of countries of origin, nine codes of the commodity nomenclature of foreign economic activity, months and years within the five-year period of 2016–2020, as well as in the context of the importing regions of Russia. The results of statistical processing of data by the Federal Customs Service revealed no effect of the sharp increase in the VAT rate on the volume of palm oil imports. The analysis of foreign statistics revealed a significant presence of actors in the chemical industry among transnational companies that are the largest consumers of palm oil. The model of entrepreneurial behavior based on consumption in palm oil production, formed and widely spread in the Russian food industry market, is criticized. 98% of palm oil and its fractions imported into Russia goes to the needs of food industry enterprises, and the authors consider that the foreign ownership of these enterprises plays an important role. In the authors’ opinion, in many respects, the latter fact determined our country’s ranking first in the food chemistry sector in the distribution of published patent applications by technology field for the top 10 origins in 2014–2016. In this respect, Russia is far ahead of China, the USA, Japan, South Korea, Germany, the UK,France, and Switzerland. In China, systematic research is being carried out on the ratio of palm oil use in the food (primarily, instant noodles, other fast food) and non-food (chemical industry, including cosmetics production) sectors.

Research on Alginate Fiber and its Application to Textiles

2013 ◽  
Vol 821-822 ◽  
pp. 68-71 ◽  
Author(s):  
Xin Yu ◽  
Huan Mou ◽  
Yi Yuan Zhang
Keyword(s):  
Research And Development ◽  
Environmental Pollution ◽  
Production Process ◽  
Chemical Industry ◽  
Renewable Resources ◽  
Oil Price ◽  
Textile Fiber ◽  
Crude Oil Price ◽  
Textile Materials ◽  
Alginate Fiber

With the development of the society, in the field of textile people begin to pursue comfort, health and nature clothing. Traditional textile materials rely too such on petroleum and chemical industry, while global crude oil price is rising and the production process is easy to cause environmental pollution. All of these promote the research and development of new textile fiber. Alginate fiber taken from the ocean having rich renewable resources and excellent environmental protection features opens a new and important source of fiber. This paper mainly introduces the development situation, the characteristics and the application prospect of alginate fiber, and elaborates the alginate fiber application in the clothing products.

An Improved Structure Design of Rolling Drum for the Mixture of Different Sizes of Particles

2014 ◽  
Vol 556-562 ◽  
pp. 456-459
Author(s):  
Yuan Lou Gao ◽  
Li Zhou ◽  
Xin Wang
Keyword(s):  
Image Analysis ◽  
Experimental Method ◽  
Chemical Industry ◽  
Food Industry ◽  
Structure Design ◽  
Cement Industry ◽  
Mixing Rate ◽  
Traditional Structure ◽  
The Stability

In many industries, such as chemical industry, food industry and cement industry, rolling drum are widely used for the mixing of solids which in many cases is the mixture of particles of different sizes. The quality of product is directly determined by the mixing uniformity, thus it is desired to guarantee the stability of mixing extent of rolling drum. This paper describes a new structure design for the mixture of different sizes of particles, and an image-analysis-based experimental method to verify the effectiveness of this new structure. Results of the experiment showed that using the new structure would enable a faster mixing rate, and obtaia higher mixing extent relative to the traditional structure.

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