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Topic Review
Activated Furans for Colorimetric Sensing
Bioactive amines are highly relevant for clinical and industrial application to ensure the metabolic status of a biological process. Apart from this, generally, amine identification is a key step in various bioorganic processes ranging from protein chemistry to biomaterial fabrication. However, many amines have a negative impact on the environment and the excess intake of amines can have tremendous adverse health effects. Thus, easy, fast, sensitive, and reliable sensing methods for amine identification are strongly searched for. A newly emerging activated furan, Meldrum’s acid furfural conjugate (MAFC), or otherwise called MAF, can be used as a colorimetric detecting agent for primary and secondary amines, which can be easily synthesized via the Knoevenagel condensation of simple and inexpensive precursors, 2-furfural and Meldrum’s acid.
  • 367
  • 12 Oct 2023
Topic Review
Applying Pickering Emulsions to Food
The proper mix of nanocellulose to a dispersion of polar and nonpolar liquids creates emulsions stabilized by finely divided solids (instead of tensoactive chemicals) named Pickering emulsions. These mixtures can be engineered to develop new food products with innovative functions, potentially more eco-friendly characteristics, and reduced risks to consumers. Although cellulose-based Pickering emulsion preparation is an exciting approach to creating new food products, there are many legal, technical, environmental, and economic gaps to be filled through research.
  • 359
  • 12 Oct 2023
Topic Review
Mechanical Recycling of Thermoplastics
Plastic materials have gathered attention recently due to their omnipresence in the global economy. The transition towards a circular economy is the only way to prevent the environment from landfilling and incineration.
  • 304
  • 12 Oct 2023
Topic Review
Chemical Depolymerization Methods of Poly(ethylene terephthalate)
The significant amount of waste generated by poly(ethylene terephthalate) (PET) requires the development of a recycling process chain in which chemical recycling plays an important role. On the one hand, it allows the depolymerization of degraded plastics that do not meet the quality requirements to be used in mechanical recycling, and on the other hand, provides an opportunity to process cheap waste and obtain products with greater added value. It can be widely used in the recycling of both packaging plastics and textiles, or other waste generated with PET.
  • 803
  • 12 Oct 2023
Topic Review
Proposed Strategies for Higher Performance in Supercapacitors
The urgent need for efficient energy storage devices (supercapacitors and batteries) has attracted ample interest from scientists and researchers in developing materials with excellent electrochemical properties. Electrode material based on carbon, transition metal oxides, and conducting polymers (CPs) has been used. Among these materials, carbon has gained wide attention in Electrochemical double-layer capacitors (EDLC) due to its variable morphology of pores and structural properties as well as its remarkable electrical and mechanical properties. In this context, the present work summarizes the history of supercapacitors, the type of carbon electrode materials, and the different strategies to improve the performance of these devices. In addition, different approaches to studying the charging mechanism of these devices through different electrochemical techniques are presented, including advantages and challenges. Since a deeper understanding of the interfacial charge storage mechanisms is also crucial in the elaboration and performance of the electrode material.
  • 260
  • 12 Oct 2023
Topic Review
Impact of Carbon Dots on Crop Growth
Carbon dots are carbon-based nanoparticles, which have the characteristics of a simple preparation process, photoluminescence, biocompatibility, an adjustable surface function, water solubility, and low-level toxicity. They are widely used in biological applications, such as imaging, biosensing, photocatalysis, and molecular transfer. They have also aroused great interest among researchers in agriculture, and there has been significant progress in improving crop growth and production. 
  • 204
  • 11 Oct 2023
Topic Review
Vat Photopolymerization
Vat photopolymerization (VP), including stereolithography (SLA), digital light processing (DLP), and volumetric printing, employs UV or visible light to solidify cell-laden photoactive bioresin contained within a vat in a point-by-point, layer-by-layer, or volumetric manner.
  • 720
  • 11 Oct 2023
Topic Review
Modifications and Variations in Schiff Base's Functional Groups
Toxic and heavy metals pose significant environmental and health risks, necessitating the development of reliable detection methods. Schiff bases as fluorescent chemosensors have attracted intense attention because of their excellent sensitivity and selectivity towards a range of cations.
  • 318
  • 11 Oct 2023
Topic Review
Applications of Carbonaceous Materials
Sustainable biomass production has a significant potential for mitigating greenhouse gas emissions, providing an alternative to produce eco-friendly biofuels, biochemicals, and carbonaceous materials for biological, energetic, and environmental applications. 
  • 291
  • 10 Oct 2023
Topic Review
Nanomaterials
Nanomaterials can be employed to modify the biosensor’s surface to increase the surface area available for biorecognition events, thereby improving the sensitivity and detection limits of the biosensor. Various nanomaterials, such as carbon nanotubes, carbon nanofibers, quantum dots, metal nanoparticles, and graphene oxide nanoparticles, have been investigated for impedimetric biosensors.
  • 246
  • 10 Oct 2023
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