Poly(2-methyl-2-oxazoline) and poly(4-vinyl pyridine) based mixed brushes with switchable ability toward protein adsorption

Surface Molecularly Imprinted Cellulose‐Synthetic Hybrid Particles Prepared via ATRP for Enrichment of Flavonoids in Olive Leaf

“…The pyridyl group behaves as a proton acceptor (small nucleophilic molecule that can interact with exposed electrophilic residues), being also a good ligand for multiple metal ions, giving rise to complexation. Due to these particular properties, polymers based on 4VP are being considered for heavy metals ions adsorption and wastewater/industrial effluents treatment, [13][14][15][16][17] enzymes/protein adsorption, [18,19] and other applications involving electronics, biomedicine, or catalysis. [20] Experimental runs reported in Table 1 lead to products with different features concerning synthetic functionalization and morphology, impacting their use with sorption/desorption processes.…”

Competitive Adsorption of Phenolic Acids, Secoiridoids, and Flavonoids in Quercetin Molecularly Imprinted Polymers and Application for Fractionation of Olive Leaf Extracts

“…Herein is reported the development of tailored polymer networks joining functionalization with 4-vinylpyridine (4VP) and molecular imprinting with quercetin as a template. 4VP was considered for functional monomer due to its special binding features that grounds the specific use for the development of advanced polymers in a wide range of applications (wastewater/industrial effluents treatment, enzyme/protein adsorption, electronics, biomedicine, or catalysis − ), including also adsorbents for plant extracts in view of the strong binding with phenolic compounds. − , The rationale for the selection of quercetin is based on its reference structure for many flavonoid molecules and because it is widely available (present in many plants) and is a less expensive molecule, therefore working as a kind of surrogate for flavonoids. Note that, in spite of a possible imperfect selectivity of MIPs and a likely high retention also observed with the correspondent NIPs (non-imprinted polymers) or functional commercial adsorbents, a positive impact of molecular imprinting was demonstrated, not only on specific binding sites formation but also on the improvement of the morphology and textural properties of the adsorbents. − …”

Hybrid cellulose-poly(4-vinylpyridine) adsorbents produced via ATRP and their application to target polyphenols in winemaking, olive oil production and almond processing residues

“…Additionally, nitrogen containing polymers, especially those based on vinylpyridine monomers [6], present enhanced adsorption capabilities towards specific compounds, which justifies their use for the tailoring of some kinds of advanced materials. Indeed, due to their chelating capability, 4-vinylpyridine based materials are being considered for heavy metals adsorption with applications in wastewater/industrial effluents treatment [7][8][9][10], enzymes/protein adsorption [11,12] and other applications involving biomedicine or catalysis [13]. Due to the potential strong interaction between 4-vinylpyridine polymers and many polyphenols, our research explores hybrid cellulose-poly (4-vinylpyridine) materials to target these classes of compounds.…”