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Topic Review
Graphene Composites for Lead-Ions Removal
• Contaminated waste water is one of the most serious risks for living organisms as well as to the environment.• Nanotechnology offers best expectations over traditional technologies for wastewater treatment.• Adsorption technology is the phenomenon of adhesion of solid substances onto the surface of adsorbent.• Graphene-based nanoadsorbents exhibited a great potential towards effective removal of lead ions from aqueous solution.• Graphene preparation, characterization, and applications of graphic-based composites for the removal of lead ions from aqueous solution have been discussed. 
  • 718
  • 10 Nov 2020
Topic Review
Aluminium Oxide
The promising techniques of obtaining AO adsorbents are discussed, namely the technique of thermal activation in the mode of pneumatic transport with gibbsite by heated air (TCA Gb) and the technique of thermal activation of gibbsite in centrifugal flash reactors (CTA Gb).
  • 718
  • 17 Mar 2021
Topic Review
Fullerenes
Buckyball clusters or buckyballs, also known as endohedral fullerenes, include fullerenes, buckminsterfullerene, and C60, which are composed of fewer than 300 carbon atoms.
  • 718
  • 13 Apr 2021
Topic Review
Canada's Food Guide
Canada's Food Guide (French: Guide alimentaire canadien) is a nutrition guide produced by Health Canada. In 2007, it was reported to be the second most requested Canadian government publication, behind the Income Tax Forms. The Health Canada website states: "Food guides are basic education tools that are designed to help people follow a healthy diet."
  • 718
  • 19 Oct 2022
Topic Review
Modification Strategies of Pristine Graphitic Carbon Nitride
Graphitic carbon nitride (g-C3N4), as the significant metal-free semiconductor photocatalyst, holds great potential in the application of the photocatalytic nitrogen oxides (NOx) removal process due to its plentiful extraordinary advantages, such as visible light response properties, mild bandgap, low cost, facile preparation and high thermal stability. However, pristine g-C3N4 prepared using the traditional high-temperature solid reaction suffers from low specific surface areas and low crystallinity owing to kinetic hindrance, which results in small specific surface areas, few reactive sites, limited light-harvesting capacity, rapid recombination of photogenerated charge carriers and unsatisfactory photocatalytic NOx removal performance. In order to improve the photocatalytic performance of pristine g-C3N4, a variety of modification strategies have been developed including metal doping, non-metal doping, defect engineering, crystallinity optimization, morphology controlling and heterojunction construction.
  • 718
  • 06 Feb 2023
Topic Review
International Course-based Undergraduate Research Experiences
Course-based Undergraduate Research Experiences (CUREs) are a proven methodology for transforming short-term study abroad to yield higher impact and quality student outcomes, especially as they relate to teaching environmental sustainability.
  • 717
  • 30 Dec 2020
Topic Review
Botanicals in Postmenopausal Osteoporosis
Osteoporosis is a systemic bone disease characterized by reduced bone mass and the deterioration of bone microarchitecture leading to bone fragility and an increased risk of fractures. Conventional anti-osteoporotic pharmaceutics are effective in the treatment and prophylaxis of osteoporosis, however they are associated with various side effects that push many women into seeking botanicals as an alternative therapy. 
  • 717
  • 02 Jun 2021
Topic Review
Steroid Oximes
Steroids and their derivatives have been the subject of extensive research among investigators due to their wide range of pharmacological properties, in which steroidal oximes are included. Oximes are a chemical group with the general formula R1R2C=N−OH and they exist as colorless crystals and are poorly soluble in water. Oximes can be easily obtained through the condensation of aldehydes or ketones with various amine derivatives, making them a very interesting chemical group in medicinal chemistry for the design of drugs as potential treatments for several diseases. A large number of steroid oximes exhibit important biological activities, such as anticancer, anti-inflammatory, antibacterial, antifungal and antiviral, among others, through different mechanisms of action. Several steroid oximes are used clinically as drugs and many others are in clinical trials.
  • 717
  • 20 Feb 2023
Topic Review
Cough Medicine
Cough medicines are medications used in those with coughing and related conditions. There is, however, no good evidence that over-the-counter cough medications reduce coughing. While they are used by 10% of American children in any given week, they are not recommended in Canada and the United States in children 6 years or younger because of lack of evidence showing effect and concerns of harm.
  • 716
  • 21 Nov 2022
Topic Review
Folic Acid Antimetabolites
Antimetabolites of folic acid represent a large group of drugs and drug candidates, including those for cancer chemotherapy. Antimetabolites, which are antagonists of natural metabolites, belong to a group of highly efficient anticancer drugs. Based on the chemical structure, these groups can be divided into several sub-groups, such as non-natural amino-acids or peptides, including phospha-analogues, analogues of purine and pyrimidine bases, such as competitors in the synthesis of the nucleic acids, as well as vitamin actions including folic acid, hormones, coenzymes, and other substrates responsible for the normal functioning of cells and tissues of the human body.
  • 716
  • 29 Dec 2022
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