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Topic Review
Silicon Integrated Photonics Technologies for Sensing Applications
Silicon (Si) photonics has emerged as one of the most viable technical platforms for manufacturing a range of functional optical components because of the fast advances in technology over the last decade. Si photonics exploration and deployment have accelerated in previous years, as both photonic component performance and photonic integration complexity have been greatly enhanced and increased. It assists a variety of applications, involving datacom and telecom, as well as sensors, such as light detection and ranging (LIDAR), gyroscopes, biosensors, and spectrometers.
  • 753
  • 20 May 2022
Topic Review
Morella and Myrica Phytochemicals
Myrica and Morella (Myricaceae) are taxonomically close genera, which include species of trees or shrubs with edible fruits that exhibit relevant uses in traditional medicine. A wide array of compounds isolated from different parts of Myrica and/or Morella species possess several biological activities, like anticancer, antidiabetic, anti-obesity, and cardio-/neuro-/hepatoprotective activities, both in vitro and in vivo, with myricanol, myricitrin, quercitrin, and betulin being the most promising. There are still many other compounds isolated from both genera whose biological activities have not been evaluated, which represents an excellent opportunity to discover new applications for those compounds and valorize Morella/Myrica species.
  • 752
  • 07 Feb 2021
Topic Review
Gold(I)-Catalyzed Approaches with Arylalkyne Activation
Gold catalysts possess the advantages of water and oxygen resistance, with the possibility of catalyzing many novel chemical transformations, especially in the syntheses of small-molecule skeletons, in addition to achieving the rapid construction of multiple chemical bonds and ring systems in one step.
  • 751
  • 14 Feb 2023
Topic Review
Oxidative Quality of Dairy Powders
Lipid oxidation (LO) is a primary cause of quality deterioration in fat-containing dairy powders and is often used as an estimation of a products shelf-life and consumer acceptability. The LO process produces numerous volatile organic compounds (VOC) including aldehydes, ketones and alcohols, which are known to contribute to the development of off-flavours in dairy powders. The main factors influencing the oxidative state of dairy powders and the various analytical techniques used to detect VOC as indicators of LO in dairy powders are outlined.
  • 751
  • 19 Oct 2021
Topic Review
Removal of Pesticides from Waters
Pesticides are pollutants found in wastewater due to increasing agricultural activities over the years. Inappropriate dosing of pesticides results in the dispersal of active ingredients in the environment. The complete removal of pesticides from wastewater is an immediate concern due to their high toxicity and mobility. At present, adsorption is one of the most widely used methods for pesticide removal, in which synthetic zeolites and mesoporous silica materials are extensively applied. This article presents a systematic and comparative review of the applications and comparison of these adsorbents, based on the data reported in the literature.
  • 751
  • 07 Jul 2021
Topic Review
Critical Minerals
Critical minerals are paramount to the successful deployment of low-carbon technologies in future transportation, defense, agriculture, healthcare, and infrastructure. They have a significant economic importance and their insecure supplies may hinder the development and industrial application of new technologies. An implementation of large quantities of minerals, in particular metals, into the clean energy transition will create new economic opportunities but also bring new challenges to energy security that could lead to unexpected dependencies on raw materials.
  • 750
  • 30 Aug 2022
Topic Review
Bioplastics
Bioplastics are one of the possible alternative solutions to the polymers of petrochemical origins. Bioplastics have several advantages over traditional plastics in terms of low carbon footprint, energy efficiency, biodegradability and versatility.
  • 750
  • 27 Feb 2023
Topic Review
Kinetics of Carbon Nanotubes
Carbon formation on steel has recently become an active research area with several important applications, using either carbon nanotubes (CNTs) or graphene structures. The production of vertically aligned CNT (VACNT) forests with combined metals has been explored with important results. Detailed kinetics is the best approach to understand a mechanism. The growth behavior seems complex but can be simplified through the knowledge of the three more common alternative reaction mechanisms/routes.
  • 750
  • 01 Feb 2021
Topic Review
Carbon Dots Composites
Among carbon-based nanomaterials, carbon dots (CDs) have received a surge of interest in recent years due to their attractive features such as tunable photoluminescence, cost effectiveness, nontoxic renewable resources, quick and direct reactions, chemical and superior water solubility, good cell-membrane permeability, and simple operation. CDs and their composites have a large potential for sensing contaminants present in physical systems such as water resources as well as biological systems. Tuning the properties of CDs is a very important subject.
  • 750
  • 17 Oct 2022
Topic Review
2D Nanomaterials for Optical Limiting
Due to the outstanding physical, chemical, electronic, and optical properties, ultra-thin 2D materials can be potentially utilized in a wide spectrum of applications, including catalysis, energy storage, sensors, biomedicine and electronics/optoelectronics, etc. 
  • 750
  • 18 Nov 2021
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