@article{ramesh_davis_roros_eiben_fabiani_smith_reynolds_pourdeyhimi_khan_genzer_et al._2021, title={Dual-Responsive Microgels for Structural Repair and Recovery of Nonwoven Membranes for Liquid Filtration}, volume={3}, ISSN={["2637-6105"]}, url={https://doi.org/10.1021/acsapm.0c01360}, DOI={10.1021/acsapm.0c01360}, abstractNote={This study presents dual-responsive colloidal microgels to repair nonwoven fiber mats (NWFs) and recover their native morphological and functional properties. The formulation comprises poly(N-isopr...}, number={3}, journal={ACS APPLIED POLYMER MATERIALS}, publisher={American Chemical Society (ACS)}, author={Ramesh, Srivatsan and Davis, Jack and Roros, Alexandra and Eiben, Justin and Fabiani, Thomas and Smith, Ryan and Reynolds, Lewis and Pourdeyhimi, Behnam and Khan, Saad and Genzer, Jan and et al.}, year={2021}, month={Mar}, pages={1508–1517} }
 @article{smith_fabiani_wang_ramesh_khan_santiso_silva_gorman_menegatti_2020, title={Exploring the physicochemical and morphological properties of peptide‐hybridized dendrimers (
            DendriPeps
            ) and their aggregates}, volume={58}, ISSN={2642-4150 2642-4169}, url={http://dx.doi.org/10.1002/pol.20200277}, DOI={10.1002/pol.20200277}, abstractNote={AbstractThis article presents an integrated experimental and computational study of DendriPeps, a novel class of dendrimers featuring a polyamidoamine (PAMAM) backbone hybridized with peptide segments. Hydroxyl‐terminated Generation 2 (G.2) DendriPeps, comprising either four lysines (Lys) or four glutamic acids (Glu), and G.3 DendriPeps, comprising 8 Lys or 8 Glu, were first characterized in terms of hydrodynamic radius (Rh) and ζ‐potential in aqueous solution. Unlike PAMAM dendrimers, DendriPeps form aggregates with Rh between 60 and 980 nm and ζ‐potential between −130 and 80 mV despite their strong net charge. Upon application of shear, all aggregates disassemble into monomeric DendriPeps (Rh ~ 1–3 nm), but reform rapidly as shear is removed. Rheological characterization confirmed that DendriPep aggregates are disrupted by mild shear, but reform reversibly. Molecular dynamics simulations, informed by titrimetry, suggest that DendriPep aggregation derives from their multipolar structure and ability to rearrange the intermolecular/intramolecular pairing of titratable moieties at different pH values.}, number={16}, journal={Journal of Polymer Science}, publisher={Wiley}, author={Smith, Ryan J. and Fabiani, Thomas and Wang, Siyao and Ramesh, Srivatsan and Khan, Saad and Santiso, Erik and Silva, Fernando Luis Barroso and Gorman, Christopher and Menegatti, Stefano}, year={2020}, month={Jul}, pages={2234–2247} }
 @article{cutright_finkelstein_orlowski_mcintosh_brotherton_fabiani_khan_genzer_menegatti_2020, title={Nonwoven fiber mats with thermo-responsive permeability to inorganic and organic electrolytes}, volume={616}, ISSN={["1873-3123"]}, DOI={10.1016/j.memsci.2020.118439}, abstractNote={This study presents the development and characterization of nonwoven fiber mats (NWFs) with stimuli-controlled permeability. An ensemble of membranes was initially constructed by coating the fibers of polypropylene NWFs with a layer of poly ((N-isopropyl acrylamide)-co-(acrylic acid)) (PNIPAm-co-AA) hydrogel. Different coatings were produced by varying the PNIPAm/AA monomer ratio between 3.9 and 18.6. The thermo-responsive layer is expanded at room temperature and contracts when heated above its lower critical solution temperature (LCST). The resulting membranes were first characterized via laser scanning microscopy and fluorescence confocal microscopy to evaluate the thickness and morphology of the hydrogel layer. Microscopy shows uniform coating of the fibers, with a thickness comparable to the fiber diameter, and homogeneous filling of the pore space. The permeability of the NWFs was then evaluated using different solutes, namely an inorganic salt (sodium chloride), an organic acid (citric acid), and an amphiphilic drug (Doxorubicin). These tests consistently show that the flux of the solute is (1) higher at temperatures > LCST, where the hydrogel layer collapses and opens the pore space, and (2) decreases at room temperature (<LCST) in a composition-dependent manner (lower for hydrogels with higher AA content); and (3) the thermo-responsive change in permeability is fully reversible.}, journal={JOURNAL OF MEMBRANE SCIENCE}, author={Cutright, Camden and Finkelstein, Rachel and Orlowski, Elliot and McIntosh, Evan and Brotherton, Zach and Fabiani, Thomas and Khan, Saad and Genzer, Jan and Menegatti, Stefano}, year={2020}, month={Dec} }