Progress in the Application of Carbon Dots-Based Nanozymes

As functional nanomaterials with simulating enzyme-like properties, nanozymes can not only overcome the inherent limitations of natural enzymes in terms of stability and preparation cost but also possess design, versatility, maneuverability, and applicability of nanomaterials. Therefore, they can be combined with other materials to form composite nanomaterials with superior performance, which has garnered considerable attention. Carbon dots (CDs) are an ideal choice for these composite materials due to their unique physical and chemical properties, such as excellent water dispersion, stable chemical inertness, high photobleaching resistance, and superior surface engineering. With the continuous emergence of various CDs-based nanozymes, it is vital to thoroughly understand their working principle, performance evaluation, and application scope. This review comprehensively discusses the recent advantages and disadvantages of CDs-based nanozymes in biomedicine, catalysis, sensing, detection aspects. It is expected to provide valuable insights into developing novel CDs-based nanozymes.

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Carbon Dots: Synthesis, Properties and Biomedical Applications

Journal of Materials Chemistry B ◽

10.1039/d1tb01077h ◽

2021 ◽

Author(s):

Guili Ge ◽

Lin Li ◽

Dan Wang ◽

Mingjian Chen ◽

Zhaoyang Zeng ◽

...

Keyword(s):

Carbon Dots ◽

Biomedical Applications ◽

Chemical Properties ◽

Physical And Chemical Properties ◽

Synthesis Properties ◽

New Type ◽

Low Toxicity ◽

Good Biocompatibility ◽

Physical And Chemical ◽

And Chemical Properties

Carbon dots (CDs) are a new type of carbon nanomaterial that have unique physical and chemical properties, good biocompatibility, low toxicity, easy surface functionalization, making them widely used in biological...

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ВИРОБНИЦТВО ТА ЗБЕРІГАННЯ ВОДНЮ

Ship power plants ◽

10.31653/smf340.2020.95-102 ◽

2020 ◽

Vol 1 ◽

pp. 95-102

Author(s):

Н.П. Демідова ◽

◽

Keyword(s):

Hydrogen Production ◽

Hydrogen Storage ◽

Chemical Properties ◽

Hydrogen Energy ◽

Physical And Chemical Properties ◽

Advantages And Disadvantages ◽

Storage Methods ◽

Physical And Chemical ◽

And Chemical Properties

Abstract: in thе article І consider the main methods of obtaining hydrogen, indicating their advantages and disadvantages. The problems of hydrogen storage methods, connected with its physical and chemical properties, are disclosed. The most promising ways of producing and storing hydrogen are presented, indicating the advantages of further research in the selected methods. Keywords: hydrogen, hydrogen production, hydrogen storage, hydrogen energy.

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From nanoscopic to macroscopic photo-driven motion in azobenzene-containing materials

Nanophotonics ◽

10.1515/nanoph-2018-0040 ◽

2018 ◽

Vol 7 (8) ◽

pp. 1387-1422 ◽

Cited By ~ 41

Author(s):

Stefano L. Oscurato ◽

Marcella Salvatore ◽

Pasqualino Maddalena ◽

Antonio Ambrosio

Keyword(s):

Liquid Crystalline ◽

Large Scale ◽

Surface Engineering ◽

Spatial Scales ◽

Chemical Properties ◽

Glassy Materials ◽

Uv Visible ◽

Physical And Chemical ◽

And Robotics ◽

And Chemical Properties

AbstractThe illumination of azobenzene molecules with UV/visible light efficiently converts the molecules between trans and cis isomerization states. Isomerization is accompanied by a large photo-induced molecular motion, which is able to significantly affect the physical and chemical properties of the materials in which they are incorporated. In some material systems, the nanoscopic structural movement of the isomerizing azobenzene molecules can be even propagated at macroscopic spatial scales. Reversible large-scale superficial photo-patterning and mechanical photo-actuation are efficiently achieved in azobenzene-containing glassy materials and liquid crystalline elastomers, respectively. This review covers several aspects related to the phenomenology and the applications of the light-driven macroscopic effects observed in these two classes of azomaterials, highlighting many of the possibilities they offer in different fields of science, like photonics, biology, surface engineering and robotics.

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Efficient Data Mining Algorithms for Screening Potential Proteins of Drug Target

Mathematical Problems in Engineering ◽

10.1155/2017/9852063 ◽

2017 ◽

Vol 2017 ◽

pp. 1-10 ◽

Cited By ~ 2

Author(s):

Qi Wang ◽

JinCai Huang ◽

YangHe Feng ◽

JiaWei Fei

Keyword(s):

Decision Trees ◽

Drug Target ◽

Drug Targets ◽

Chemical Properties ◽

Superior Performance ◽

Target Proteins ◽

Data Mining Algorithms ◽

Open Access Database ◽

Human Proteins ◽

Physical And Chemical

The past few decades have witnessed the boom in pharmacology as well as the dilemma of drug development. Playing a crucial role in drug design, the screening of potential human proteins of drug targets from open access database with well-measured physical and chemical properties is a task of challenge but significance. In this paper, the screening of potential drug target proteins (DTPs) from a fine collected dataset containing 5376 unlabeled proteins and 517 known DTPs was researched. Our objective is to screen potential DTPs from the 5376 proteins. Here we proposed two strategies assisting the construction of dataset of reliable nondrug target proteins (NDTPs) and then bagging of decision trees method was employed in the final prediction. Such two-stage algorithms have shown their effectiveness and superior performance on the testing set. Both of the algorithms maintained higher recall ratios of DTPs, respectively, 93.5% and 97.4%. In one turn of experiments, strategy1-based bagging of decision trees algorithm screened about 558 possible DTPs while 1782 potential DTPs were predicted in the second algorithm. Besides, two strategy-based algorithms showed the consensus of the predictions in the results, with approximately 442 potential DTPs in common. These selected DTPs provide reliable choices for further verification based on biomedical experiments.

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Study on the Preparation Technology and Regeneration Technology of Activated Carbon

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.807.159 ◽

2019 ◽

Vol 807 ◽

pp. 159-164

Author(s):

Yuan Ze Ma ◽

Xiu Xia Zhang ◽

Rong Fan

Keyword(s):

Activated Carbon ◽

Raw Materials ◽

Low Cost ◽

Chemical Properties ◽

High Specific Surface Area ◽

Green Economy ◽

Utilization Rate ◽

Preparation Methods ◽

Advantages And Disadvantages ◽

Physical And Chemical

Due to the developed pore structure ,high specific surface area, low cost, accessible raw materials and stable physical and chemical properties, activated carbon has caused high attention of society. Nowadays activated carbon has been widely used in capacitor electrode production, water pollution treatment, medicine and other fields. We review the various preparation methods of activated carbon and analyze the advantages and disadvantages of them in this paper. The characteristics of activated carbon regeneration technology are also discussed from the perspective of improving the utilization rate of activated carbon. With the development of China's green economy and the increasing awareness of people's environmental protection, the research on the preparation and regeneration of activated carbon will surely have a broader development prospect.

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On the Application of Green Ionic Liquids in the Preparation Process of the Gel-Type Wood Composites Materials

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.357-360.1039 ◽

2013 ◽

Vol 357-360 ◽

pp. 1039-1044

Author(s):

Xiu Rong Li ◽

Bing Zhao Liang ◽

De Hua Li ◽

Liu Na ◽

Xiao Na Yin

Keyword(s):

Ionic Liquid ◽

Three Dimensional ◽

Chemical Properties ◽

Dissolution Behavior ◽

Wood Composites ◽

Composites Materials ◽

Stable Chemical ◽

Wood Residues ◽

Physical And Chemical ◽

Cellulose Regeneration

Due to the excellent physical and chemical properties of low melting point, high stability, low vapor pressure, and adjustable solubility, the ionic liquid is widely used in the dissolution of cellulose, regeneration and applied research. This thesis selects the ionic liquid to dissolve the wooden ponder in the processed wood residues and observes its dissolution behavior including the dissolution process of the cellulose in the ionic liquid and the cellulose dissolution as well as its regeneration mechanism. It turns out that the chemical structure of successfully prepared gel-type wood composite material does not changes and its microstructure retains a complete timber microscopic structure. For the fiber bundle formed after the celluloses dissolution, one part functions as the support skeleton, another forms a closed three-dimensional crosslinked network, which possesses stable chemical and physical properties. The gel-type wood composites owns suitable visual characteristics, which can render the "natural", "comfortable", "simple and elegant", and "crisp" visual psychological impression.

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Degradation of Organic Pollutants by Titanium Dioxide Matrix Composites

E3S Web of Conferences ◽

10.1051/e3sconf/202124502039 ◽

2021 ◽

Vol 245 ◽

pp. 02039

Author(s):

Li Han ◽

Yan Gao ◽

Xing Gao ◽

Weijuan Gong ◽

Hui Wang

Keyword(s):

Titanium Dioxide ◽

Organic Pollutants ◽

Organic Pollutant ◽

Chemical Properties ◽

Matrix Composites ◽

Pollutant Degradation ◽

Advantages And Disadvantages ◽

Organic Pollutant Degradation ◽

Stable Chemical ◽

Development Direction

As a semiconductor material, titanium dioxide has the advantages of stable chemical properties, no pollution and low price, which is widely used in the field of organic pollutant degradation. The modification methods of semiconductor composite and nonmetallic doping for titanium dioxide are described. The degradation efficiency of modified titanium dioxide composite for organic pollutants is proposed. The advantages and disadvantages of the composite in preparation and application are pointed out. Finally, the development direction of modified titanium dioxide composite in the future is described.

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Novel Nanofluidic Cells Based on Nanowires and Nanotubes for Advanced Chemical and Bio-Sensing Applications

Nanomaterials ◽

10.3390/nano11010090 ◽

2021 ◽

Vol 11 (1) ◽

pp. 90

Author(s):

Xin-Yi Zhu ◽

Bo-Ran Wang ◽

Yi Gu ◽

Hao Zhu ◽

Lin Chen ◽

...

Keyword(s):

Single Molecule ◽

Pathogen Detection ◽

Gas Sensing ◽

Chemical Properties ◽

Synthesis Methods ◽

Sensing Applications ◽

Research Activities ◽

Nanofluidic Devices ◽

Working Principle ◽

Physical And Chemical

Since the first introduction of one-dimensional nanochannels for single-molecule detection, there has been increasing interest in modern nanofluidic systems, such as chemical and biological sensing applications. Recently developed nanowires (NWs) and nanotubes (NTs) have received tremendous attention due to their unique geometrical, physical and chemical properties, which are very attractive in this field. Here, we review the recent research activities in the field of novel nanofluidic cells based on NWs and NTs. First, we give a brief introduction of this field. Then the common synthesis methods of NWs and NTs are summarized. After that, we discuss the working principle and sensing mechanism of nanofluidic devices, which is fundamental to the interaction between these nanostructures and small molecules. Finally, we present the NW- and NT-based devices for chemical and bio-sensing applications, such as gas sensing, pathogen detection, DNA sequencing, and so forth.

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Accelerated Synthesis of Graphene Oxide from Graphene

Nanomaterials ◽

10.3390/nano11020551 ◽

2021 ◽

Vol 11 (2) ◽

pp. 551

Author(s):

Mariana C. F. Costa ◽

Valeria S. Marangoni ◽

Pei Rou Ng ◽

Hang T. L. Nguyen ◽

Alexandra Carvalho ◽

...

Keyword(s):

Graphene Oxide ◽

Chemical Properties ◽

Industrial Applications ◽

Graphite Oxidation ◽

Alternative Approach ◽

Graphene Flakes ◽

Superior Surface ◽

Physical And Chemical ◽

Modified Hummers Method ◽

And Chemical Properties

Graphene oxide (GO) is an oxygenated functionalized form of graphene that has received considerable attention because of its unique physical and chemical properties that are suitable for a large number of industrial applications. Herein, GO is rapidly obtained directly from the oxidation of graphene using an environmentally friendly modified Hummers method. As the starting material consists of graphene flakes, intercalant agents are not needed and the oxidation reaction is enhanced, leading to orders of magnitude reduction in the reaction time compared to the conventional methods of graphite oxidation. With a superior surface area, the graphene flakes are quickly and more homogeneously oxidized since the flakes are exposed at the same extension to the chemical agents, excluding the necessity of sonication to separate the stacked layers of graphite. This strategy shows an alternative approach to quickly producing GO with different degrees of oxidation that can be potentially used in distinct areas ranging from biomedical to energy storage applications.

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