Adsorption properties of β-cyclodextrin modified hydrogel for methylene blue

Beta cyclodextrin modified polyvinylidene fluoride adsorptive mixed matrix membranes for removal of Congo red

“…Over the years, the increase in the use of dyes in industries such as textiles, paper and pulp, leather, plastics, pharmaceuticals, and cosmetics has led to pollution of aquatic bodies 1 . Dye effluents continue to pose threats to the environment and living organisms 2,3 . These color water bodies and reduce the levels of oxygen in water causing suffocation of aquatic flora and fauna 2 .…”

“…2,3 These color water bodies and reduce the levels of oxygen in water causing suffocation of aquatic flora and fauna. 2 In addition, dyes are considered to be toxic, carcinogenic, and mutagenic to living organisms and they can cause skin diseases and allergies to human beings. 2,4,5 Therefore, time and effort has been put in research to develop suitable and efficient strategies for the removal of dyes from wastewater.…”

Dramatically Increased Binding Constant of Water-Soluble Cyclodextrin Hyperbranched Polymers: Explored with Diffusion Ordered NMR Spectroscopy (DOSY)

“…Its widespread use is due to its high reactivity with CDs, simple synthesis reaction, and flexibility allowing various types of materials to be obtained, including hydrogels/gels, powders/particles, beads/resins, and nanoparticles/nanobeads . For example, water-insoluble cyclodextrin polymers have been developed as materials for adsorbing organic pollutants such as methylene blue, bisphenol A, and metal ions. − In pharmaceutical applications, the water-soluble CDs polymers are of particular interest as a drug delivery system (DDS) given their ability to improve the solubility in aqueous solution as well as the bioavailability of some drugs beyond those with native CDs. − For example, the aqueous solubility of glipizide was reported to increase in the presence of the βCD–ECH polymer and the dissolution rate of glipizide from the β-CD–ECH polymer complex was significantly greater than that of the drug itself . In general, a large binding constant (>10 4 M –1 ) between the DDS carrier and the drug is required in order to maintain a stable complex and improve bioavailability after intravenous administration.…”

Colorimetric oxygen indicator films based on β‐cyclodextrin grafted chitosan/montmorillonite with redox system for intelligent food packaging

“…The outer surface of β‐CD is hydrophilic, while the inner cavity is hydrophobic. The internal cavities can form complexes, with various guest molecules, for example, dyes 31 . Formation of complexes with β‐CD improved dye adsorption efficiency and light stability as well as colour intensity 32,33 .…”

“…The internal cavities can form complexes, with various guest molecules, for example, dyes. 31 Formation of complexes with β-CD improved dye adsorption efficiency and light stability as well as colour intensity. 32,33 To combine the benefits of both chitosan and β-CD, chitosan grafted β-CD was prepared by different methods and applied as antimicrobial agents, 34 drug delivery 35 and adsorbent matrices.…”