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Topic Review
Polysiloxane-Based Electrolytes
Dye-sensitized solar cells (DSSCs) are a very promising solution as remote sustainable low power sources for portable electronics and Internet of Things (IoT) applications due to their room-temperature and low-cost fabrication, as well as their high efficiency under artificial light. In addition, new achievements in developing semitransparent devices are driving interest in their implementation in the building sector. However, the main obstacle towards the large-scale exploitation of DSSCs mainly concerns their limited long-term stability triggered by the use of liquid electrolytes. 
  • 534
  • 24 Jul 2023
Topic Review
Single-Component Cationic Photoinitiators
With the advantages offered by cationic photopolymerization (CP) such as broad wavelength activation, tolerance to oxygen, low shrinkage and the possibility of “dark cure”, it has attracted extensive attention in photoresist, deep curing and other fields in recent years. The applied photoinitiating systems (PIS) play a crucial role as they can affect the speed and type of the polymerization and properties of the materials formed. Much effort has been invested into developing cationic photoinitiating systems (CPISs) that can be activated at long wavelengths and overcome technical problems and challenges faced. 
  • 730
  • 24 Jul 2023
Topic Review
Special Wettability Metal–Organic Frameworks-Based Membranes for Oil–Water Separation
The presence of oily wastewater poses a significant threat to both the ecological environment and public health. In order to solve this problem, the design and preparation of an efficient oil–water separation membrane is very important. Metal–organic frameworks (MOFs) are currently a promising material for oil–water separation due to their tunable wettability, adjustable pore size and also low density, high porosity, and high surface area. Therefore, MOFs-based membranes show great potential in the field of oil–water separation. 
  • 366
  • 24 Jul 2023
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.
  • 289
  • 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.
  • 388
  • 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.
  • 302
  • 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. 
  • 295
  • 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. 
  • 215
  • 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.
  • 344
  • 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.
  • 401
  • 21 Jul 2023
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