Applications of Deep Eutectic Solvents in the Extraction, Dissolution, and Functional Materials of Chitin: Research Progress and Prospects

2021 ◽  
Author(s):  
Jiake Wang ◽  
Changchang Teng ◽  
Lifeng Yan
Keyword(s):  
Functional Materials ◽  
Renewable Resource ◽  
Deep Eutectic Solvents ◽  
Research Progress

As a recyclable and inexhaustible renewable resource, chitin is one of the most abundant polysaccharides in nature. It has excellent biocompatibility, biodegradability, and non-toxicity and has been widely used in...

Studies on Lignocellulose Degradation by Rumen Microorganism

2013 ◽  
Vol 853 ◽  
pp. 253-259 ◽  
Author(s):  
Guan Rong Wang ◽  
Yu Lin Duan
Keyword(s):  
Cellulose Degradation ◽  
Agricultural Waste ◽  
Complex Structure ◽  
Renewable Resource ◽  
Research Progress ◽  
Lignocellulose Degradation ◽  
Enzymatic Characterization ◽  
Rumen Microorganisms ◽  
Microbial Metagenomics ◽  
Energy Processing

Lignocellulosic material is the earth's most abundant renewable resource, but because of its stable and complex structure, it is not easy for depredating and utilizing for a long time. Rumen can degrade lignocellulose, and is one of nature's most efficient fermentation fermenter; to be study rumen microorganisms has the potential to provide valuable solutions to renewable energy, processing of agricultural waste, organic waste etc. Research methods vary from screening of cellulose-degradation bacteria, enzymatic characterization, to the use of metagenomics technology to get a large number of genes directly from the rumen. This article reviews the characteristics, mechanism and contribution of different rumen microbial in degradation of lignocellulose, as well as the research progress of enzymatic characterization and rumen microbial metagenomics.

ChemInform Abstract: Deep Eutectic Solvents: Sustainable Media for Nanoscale and Functional Materials

ChemInform ◽  
2014 ◽  
Vol 45 (41) ◽  
pp. no-no ◽  
Author(s):  
Durgesh V. Wagle ◽  
Hua Zhao ◽  
Gary A. Baker
Keyword(s):  
Functional Materials ◽  
Deep Eutectic Solvents ◽  
Sustainable Media

Depolymerization of Lignin with Supercritical Fluids: A Review

2013 ◽  
Vol 821-822 ◽  
pp. 1126-1134 ◽  
Author(s):  
Xing Wang ◽  
Jing Hui Zhou ◽  
Hai Ming Li ◽  
Guang Wei Sun
Keyword(s):  
Supercritical Fluids ◽  
Large Scale ◽  
Economic Value ◽  
Renewable Resource ◽  
Operating Conditions ◽  
Research Progress ◽  
Product Analysis ◽  
Transportation Fuels ◽  
Supercritical Fluid Technology ◽  
Lignin Depolymerization

Biomass has attracted keen interest as a renewable resource and an environmental friendly material that is essential to realize a sustainable world. Lignin as biomass has been long labeled with waste material. But now the innate chemistry of lignin and a phenolic heteropolymer, has allowed it to make inroads into the high value polymer and natural biomass material industries. Supercritical fluids (SCF) have been shown to be a promising technique for future large-scale biofuel and base-chemicals production, especially for depolymerization production from lignin. This paper reviews the research progress of lignin-depolymerization processes, including effects of process parameters, such as reaction time, temperature, pressure and catalyst, product analysis, and reaction mechanism with different supercritical fluids. The problems of depolymerization with supercritical fluid technology and its development direction are also briefly discussed. Compared with conventional lignin production methods, the SCF technology processes of lignin can produce smaller fragments through breakage of the ether linkages and produce larger fragments through cross linking between the reactive fragments, and the depolymerization lignin processes are typically conducted at mild operating conditions, and the monomeric products have a high economic value because the aromatic products can be readily blended into current transportation fuels or used in chemical industry.

scholarly journals Sustainability in wood materials science: an opinion about current material development techniques and the end of lifetime perspectives

2021 ◽  
Vol 379 (2206) ◽  
pp. 20200339
Author(s):  
Christian Goldhahn ◽  
Etienne Cabane ◽  
Munish Chanana
Keyword(s):  
Environmental Sustainability ◽  
Materials Science ◽  
Science And Technology ◽  
Functional Materials ◽  
Holistic Approach ◽  
Renewable Resource ◽  
Wood Products ◽  
Advanced Materials ◽  
Building Sector ◽  
Wood Science

Wood is considered the most important renewable resource for a future sustainable bioeconomy. It is traditionally used in the building sector, where it has gained importance in recent years as a sustainable alternative to steel and concrete. Additionally, it is the basis for the development of novel bio-based functional materials. However, wood's sustainability as a green resource is often diminished by unsustainable processing and modification techniques. They mostly rely on fossil-based precursors and yield inseparable hybrids and composites that cannot be reused or recycled. In this article, we discuss the state of the art of environmental sustainability in wood science and technology. We give an overview of established and upcoming approaches for the sustainable production of wood-based materials. This comprises wood protection and adhesion for the building sector, as well as the production of sustainable wood-based functional materials. Moreover, we elaborate on the end of lifetime perspective of wood products. The concept of wood cascading is presented as a possibility for a more efficient use of the resource to increase its beneficial impact on climate change mitigation. We advocate for a holistic approach in wood science and technology that not only focuses on the material's development and production but also considers recycling and end of lifetime perspectives of the products. This article is part of the theme issue ‘Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 1)’.

Intelligent Concrete with Self-x Capabilities for Smart Cities

2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Xin Wang ◽  
Zhen Li ◽  
Bing Han ◽  
Baoguo Han ◽  
Xun Yu ◽  
...  
Keyword(s):  
Raw Materials ◽  
Smart Cities ◽  
Functional Materials ◽  
Research Progress ◽  
Life Cycle Costs ◽  
Conventional Concrete ◽  
Structural Applications ◽  
Concrete Materials ◽  
Working Parameters ◽  
Concrete Matrix

Intelligent concrete refers to the structural materials which can sense the changes of environment and make suitable responses by altering one or more working parameters in real time. The ‘intelligent’ properties of concrete are achieved mainly by improving the composition of raw materials or combining some functional materials with concrete matrix, thus leading to the concrete possessing bionic features. Compared to conventional concrete, the reliability and sustainability of structures can be optimized by applying properly designed intelligent concrete materials. Additionally, the life-cycle costs, resource consumption and environment pollution can be reduced. In the past few decades, considerable efforts have been put towards the research of intelligent concrete and many innovative achievements have been gained in the development and application of intelligent concrete. Twelve types of intelligent concrete emphasizing on its self-x capabilities are systematically reviewed in this paper, with attentions to their principles, composition, fabrication, properties, research progress and structural applications. In addition, some comments and prospects for the development of self-x concrete are also discussed.

scholarly journals Recent Developments for Flexible Pressure Sensors: A Review

Micromachines ◽  
2018 ◽  
Vol 9 (11) ◽  
pp. 580 ◽  
Author(s):  
Fenlan Xu ◽  
Xiuyan Li ◽  
Yue Shi ◽  
Luhai Li ◽  
Wei Wang ◽  
...  
Keyword(s):  
Pressure Sensors ◽  
Functional Materials ◽  
High Sensitivity ◽  
Research Progress ◽  
Flexible Sensors ◽  
Flexible Devices ◽  
Recent Developments ◽  
Transduction Mechanisms ◽  
High Flexibility ◽  
Flexible Pressure Sensors

Flexible pressure sensors are attracting great interest from researchers and are widely applied in various new electronic equipment because of their distinct characteristics with high flexibility, high sensitivity, and light weight; examples include electronic skin (E-skin) and wearable flexible sensing devices. This review summarizes the research progress of flexible pressure sensors, including three kinds of transduction mechanisms and their respective research developments, and applications in the fields of E-skin and wearable devices. Furthermore, the challenges and development trends of E-skin and wearable flexible sensors are also briefly discussed. Challenges of developing high extensibility, high sensitivity, and flexible multi-function equipment still exist at present. Exploring new sensing mechanisms, seeking new functional materials, and developing novel integration technology of flexible devices will be the key directions in the sensors field in future.

Research of Novel Functional Stealthy Nanomaterials

2012 ◽  
Vol 534 ◽  
pp. 73-77
Author(s):  
Qiang Wang ◽  
Ling Na Sun ◽  
Chang Wen Hu ◽  
Chuan Bao Cao
Keyword(s):  
Functional Materials ◽  
Development Trend ◽  
Research Progress ◽  
Nano Materials ◽  
Military Technology ◽  
Absorption Mechanism ◽  
Preparation Methods ◽  
Electronic Warfare ◽  
Military Equipment ◽  
The Development Trend

With the continuous development of Electronic Warfare Technology (ECM) and new requirements of military modernization, stealthy technology played an important role in military equipment. Mechanism of new stealthy continues to be broken through and numbers of successful developments of new types of stealthy materials are put into use. New stealthy materials are the basis and key of stealthy technology and their developments are promoted by the improvements of detection and guidance of military technology. The studies of new stealthy functional nano-materials are analyzed and the stealthy mechanism of functional materials is introduced. The research progress, classification, preparation methods and the radar absorption mechanism of stealthy for new stealthy functional nano-materials are discussed. The new stealthy functional nano-materials are compared with the traditional radar absorption materials. The development trend and application prospects of stealthy functional nano-materials are also estimated.

Deep Eutectic Solvents: Sustainable Media for Nanoscale and Functional Materials

2014 ◽  
Vol 47 (8) ◽  
pp. 2299-2308 ◽  
Author(s):  
Durgesh V. Wagle ◽  
Hua Zhao ◽  
Gary A. Baker
Keyword(s):  
Functional Materials ◽  
Deep Eutectic Solvents ◽  
Sustainable Media

Deep eutectic solvents (DESs)-derived advanced functional materials for energy and environmental applications: challenges, opportunities, and future vision

2017 ◽  
Vol 5 (18) ◽  
pp. 8209-8229 ◽  
Author(s):  
Xiang Ge ◽  
Changdong Gu ◽  
Xiuli Wang ◽  
Jiangping Tu
Keyword(s):  
Potential Energy ◽  
Functional Materials ◽  
Deep Eutectic Solvents ◽  
Environmental Applications ◽  
Future Vision

This review aims to inspire more researchers to explore potential energy and environmental applications of DESs and their derivatives.

Research Progress of Combined Application of Sol-Gel and Electrochemistry

2018 ◽  
Vol 768 ◽  
pp. 119-128 ◽  
Author(s):  
Qiang Li ◽  
Wei Ying Liu ◽  
Guo Yin Sun ◽  
Juan Fang Shang
Keyword(s):  
Modified Electrode ◽  
Electrochemical Sensors ◽  
Sol Gel ◽  
Modified Electrodes ◽  
Functional Materials ◽  
Electrochemical Analysis ◽  
Research Progress ◽  
Gel Method ◽  
Sol Gel Method ◽  
Combined Application

There were many advantages for functional materials production using Sol-gel method, such as low operating temperature and easy doping. So, it was widely used in materials preparation, such as nano powders, films, functional glass, nanoceramic and modified electrode. The sol-gel modified electrode has extensive application in electrochemical analysis and electrochemical sensors. In addition, the film by electrodeposition can be tightly assembled on electrode substrate and its structure and shape can be easily regulated. So, The two methods are combined to make better use of their respective advantages. Up to now, the film materials using electrochemically induced sol-gel had been used in electrochemistry analysis and functional films preparation. In this paper, it was summarized that the progress of combined application of sol-gel and electrochemistry. Mainly including sol-gel materials, modified electrodes, electrochemical analysis and sensors, and electrochemical induction sol-gel method for the preparation of thin film materials.

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