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Topic Review
Application of Hemostatic Nanomaterials
Effective control of blood loss is able to save time and improve the survival rate of patients. When bleeding occurs, hemostasis is the body’s spontaneous response. The mechanism of hemostasis in vivo involves two processes: primary hemostasis, when endothelium gets injured, and collagen and other subendothelial matrix components are exposed, and von Willebrand factor is released to allow platelets to adhere to the wound site; secondary hemostasis, tissue factor stimulates the conversion of prothrombin to thrombin, and soluble fibrinogen acts to limit the formation of insoluble fibrin clots. Nanotechnology can transform and utilize the microstructure on the nanoscale, which gives nanomaterials unique advantages such as improved diffusivity and solubility, easy-to-penetrate physiological barriers, large specific surface area, slow control, and targeted release of drugs.
  • 265
  • 24 Jul 2023
Topic Review
Functional Materials Based on Nanocellulose for Pharmaceutical/Medical Applications
Nanocelluloses (NCs), with their remarkable characteristics, have proven to be one of the most promising “green” materials of our times and have received special attention from researchers in nanomaterials. A diversity of new functional materials with a wide range of biomedical applications has been designed based on the most desirable properties of NCs, such as biocompatibility, biodegradability, and their special physicochemical properties.
  • 356
  • 23 Jul 2023
Topic Review
Cellulose-Based Metallogels
Metallogels are a category of materials formed by combining polymer gels with metal ions, creating coordination bonds with the functional groups of the gel. The incorporation of metal phases into hydrogels offers diverse possibilities for functionalization. Cellulose stands out as a preferred choice for producing hydrogels from various standpoints, including economic, ecological, physical, chemical, and biological aspects. It possesses advantages such as cost-effectiveness, renewability, versatility, non-toxicity, remarkable mechanical and thermal stability, a porous structure, a significant number of reactive OH groups, and excellent biocompatibility.
  • 270
  • 21 Jul 2023
Topic Review
Nonmetallic Electrocatalysts for Oxygen Reduction Reactions
As a key role in hindering the large-scale application of fuel cells, oxygen reduction reaction has always been a hot issue and nodus. Nonmetallic catalysts have a low cost, good stability and resistance in oxygen reduction reactions. 
  • 262
  • 21 Jul 2023
Topic Review
Reduced Graphene Oxide-Loaded Metal-Oxide Nanofiber Gas Sensors
Reduced graphene oxide (rGO) is a reduced form of graphene oxide used extensively in gas sensing applications. On the other hand, in its pristine form, graphene has shortages and is generally utilized in combination with other metal oxides to improve gas sensing capabilities. There are different ways of adding rGO to different metal oxides with various morphologies. 
  • 192
  • 21 Jul 2023
Topic Review
Nanostructured Resistive-Based Vanadium Oxide Gas Sensors
Vanadium pentoxide (V2O5) is a transition metal oxide with features such as high availability, good catalytic activity, unique electrical properties and high conductivity which are appropriate for gas sensing applications.
  • 319
  • 21 Jul 2023
Topic Review
Acetaldehyde Detection Using Chemiresistive-Based Gas Sensors
Volatile organic compounds (VOCs) are among the most abundant air pollutants. Their high concentrations can adversely affect the human body, and therefore, early detection of VOCs is of outmost importance.
  • 376
  • 21 Jul 2023
Topic Review
Natural Polymers in Heart Valve Tissue Engineering
The new generation of heart valves developed by tissue engineering has the ability to repair, reshape and regenerate cardiac tissue. Achieving a sustainable and functional tissue-engineered heart valve (TEHV) requires deep understanding of the complex interactions that occur among valve cells, the extracellular matrix (ECM) and the mechanical environment.
  • 284
  • 21 Jul 2023
Topic Review
Building Supercapacitors with Electrolytes and Carbon Electrodes
Supercapacitors (SCs), also known as “ultracapacitors”, are used in applications requiring rapid energy storage or high-power delivery. Carbon-based materials for supercapacitors derived from affordable coal deposits or crop waste with appropriate characteristics in terms of specific surface area, electrical conductivity, and charge/discharge stability. In addition, the substitution of organic liquids electrolytes with less dangerous solutions, such as aqueous electrolytes containing high concentrations of salt, is a valuable strategy for the design of green devices.
  • 315
  • 21 Jul 2023
Topic Review
The Production of Nanotechnology in Agriculture
Nanotechnology has an extensive series of applications in agronomy and has an important role in the future of sustainable agriculture. The agricultural industries should be supported by innovative active materials such as nanofertilizers, nanofungicides, and nanopesticides.
  • 455
  • 21 Jul 2023
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