Dendrimer-based coatings for surface modification of polyamide reverse osmosis membranes

Recent advances in the development of (bio)fouling resistant thin film composite membranes for desalination

“…Surface coating with polymers possessing hydrophilic end groups, dendritic or hyperbranched polymers, is of great interest to researchers in order to impart protein resistance to the surface of TFC membrane [21,22]. A large number of functional groups and low solution viscosity cause the hyperbranched polymers to be advantageous for various applications [22].…”

PEGylation and incorporation of triazine ring into thin film composite reverse osmosis membranes for enhancement of anti-organic and anti-biofouling properties

“…Membrane fouling generally occurs by undesirable deposition of inorganic matters (precipitation of metal hydroxides and carbonates), organic matters (natural organic matters such as humic acid, protein and polysaccharides), colloidal (suspended silica particles) matters and biological organism (bacteria and fungi) [17,20,21]. Hydrophilic surface modification of membranes is an attractive approach to reduce the fouling characteristic of membranes [22][23][24][25]. Bernstein et al reported concentration polarization-enhanced radical graft polymerization for the surface modification of TFC membranes by cationic, anionic and zwitterionic polymers to minimize bacterial adhesion on the membranes surfaces.…”

Modification of regenerated cellulose membrane based on thiol dendrimer

“…In particular, the combination of both dendrimers and membranes has been used for gas separation (different generations of DAB dendrimers) and the recovery of heavy metals from aqueous solutions (PAMAM dendrimers and ultrafiltration or reverse osmosis membranes) (Diallo et al, 2004;Diallo, Christie, Swaminathan, Johnson, & Goddard, 2005;Diallo, Arasho, Johnson, & Goddard, 2008), but other dendrimers immobilisations have also been proposed (Sarkar et al, 2010). In a previous work we showed the easy inclusion of fluorescent nanoparticles (CdSe quantum dots) coated with a fifth generation thiol poly(propyleneimine) dendrimer in a highly hydrophilic cellulosic membrane by the dip coating procedure (Algarra, Alonso, Casado, Esteves da Silva, & Benavente, 2013;Algarra et al, 2014).…”