Simple and Facile Approach To Create Charge Reversible Pores via Hydrophobic Anchoring of Ionic Amphiphiles.
K P SonuB V V S Pavan KumarSubi J GeorgeMuthusamy EswaramoorthyPublished in: ACS applied materials & interfaces (2017)
Mesoporous silica-based charge reversal systems have gained significant attention in recent years due to a variety of applications such as drug delivery, dye adsorption, catalysis, chromatography, etc. Such systems often use covalent strategies to immobilize functional groups on the silica scaffold. However, lack of dynamism, modularity, and postsynthetic flexibility associated with covalent routes limit their wider applicability. Alternatively, supramolecular routes are gaining increased attention owing to their ability to overcome these limitations. Here, we introduce a simple and facile noncovalent design for a highly reversible assembly of charged amphiphiles within mesopores. Hexyl pendant groups were covalently attached to the surface to provide hydrophobic anchoring for charged amphiphiles to enable facile switching of surface charge of the mesoporous silica. These charge-switchable surfaces were used for fast and selective adsorption of dyes from aqueous solutions.
Keyphrases
- aqueous solution
- highly efficient
- solar cells
- drug delivery
- visible light
- metal organic framework
- quantum dots
- reduced graphene oxide
- working memory
- ionic liquid
- mass spectrometry
- staphylococcus aureus
- biofilm formation
- high speed
- cancer therapy
- liquid chromatography
- cystic fibrosis
- tandem mass spectrometry
- pseudomonas aeruginosa
- ms ms
- drug release