Browsing by author "Neto, Chiara"
Sort by:
Title A-Z
-
Boundary flow on end-grafted PEG brushes
Charrault, E.; Lee, T.; Easton, C.D.; Neto, ChiaraPublished 2015-12-18We investigated the boundary conditions for flow of a Newtonian liquid over soft interfaces by measuring hydrodynamic drainage forces with colloid probe atomic force microscopy in a viscous liquid. The investigated soft ...Open AccessArticle -
Chain Collapse and Interfacial Slip of Polystyrene Films in Good/ Nonsolvent Vapor Mixtures
Al-Khayat, O.; Geraghty, K.; Shou, K.; Nelson, A.; Neto, ChiaraPublished 2016-02-08We investigated the dynamics and morphology of dewetting of metastable polystyrene films (thickness 75− 500 nm) cast on silicon substrates, upon exposure to vapors of a mixture of toluene, a good solvent, and ethanol, a ...Open AccessArticle -
Control of nanoparticle formation using the constrained dewetting of polymer brushes
Lee, Thomas; Hendy, Shaun C.; Neto, ChiaraPublished 2015-01-14We have used coarse-grained molecular dynamics simulations to investigate the use of pinned micelles formed by the constrained dewetting of polymer brushes to act as a template for nanoparticle formation. The evaporation ...Open AccessArticle -
Durable Superhydrophobic Surfaces Via Spontaneous Wrinkling of Teflon
Scarratt, L.R.J.; Hoatson, B.S.; Wood, E.S.; Hawkett, B.S.; Neto, ChiaraPublished 2016-02-24We report the fabrication of both single-scale and hierarchical superhydrophobic surfaces, created by exploiting the spontaneous wrinkling of a rigid Teflon AF film on two types of shrinkable plastic substrates. Sub-100 ...Open AccessArticle -
Functional patterned coatings by thin polymer film dewetting
Telford, Andrew M.; Thickett, S.C.; Neto, ChiaraPublished 2017-07-04An approach for the fabrication of functional polymer surface coatings is introduced, where micro-scale structure and surface functionality are obtained by means of self-assembly mechanisms. We illustrate two main applications ...Open AccessArticle -
The Good the Bad and the Slippery: A Tale of Three Solvents in Polymer Film Dewetting
Al-Khayat, Omar; Hong, Jun Ki; Geraghty, Kieran; Neto, ChiaraPublished 2016-09-01We investigated the dynamics and morphology of dewetting of bilayers of thin polymer films, made of a top poly(4-vinylpyridine) (P4VP) film on a polystyrene film on silicon substrates, upon exposure to vapors of binary and ...Open AccessArticle -
Guiding the Dewetting of Thin Polymer Films by Colloidal Imprinting
Ghezzi, Manuel; Wang, P-Y.; Kingshott, P.; Neto, ChiaraPublished 2015-04-21Micropatterned surfaces are important in many biomedical and bioengineering applications, such as the development of biosensors. An approach for the creation of ordered surface patterns, fabricated combining colloidal ...Open AccessArticle -
High Glass Transition Temperature Fluoropolymers for Hydrophobic Surface Coatings via RAFT Copolymerization
Rowe, M.; Teo, G.; Horne, J.; Al-Khayat, Omar; Neto, Chiara; Thickett, Stuart C.Published 2016-02-24The preparation of polymer thin films or surface coatings that display a static water contact angle .958 often requires hierarchical roughness features or surface functionalization steps. In addition, inherently hydrophobic ...Open AccessArticle -
Interfacial slip on rough, patterned and soft surfaces: A review of experiments and simulations
Lee, Thomas; Charrault, Eric; Neto, ChiaraPublished 2014-02-22Advancements in the fabrication of microfluidic and nanofluidic devices and the study of liquids in confined geometries rely on understanding the boundary conditions for the flow of liquids at solid surfaces. Over the past ...Open AccessArticle -
Mechanical properties of Ropaque hollow nanoparticles
Zhu, Liwen; Nguyen, Duc; Davey, Tim; Baker, Matthew; Such, Chris; Hawkett, Brian; Neto, ChiaraPublished 2017-10-15The elastic properties and strength upon compression of commercial Ropaque polystyrene hollow particles were investigated by atomic force microscopy (AFM). These particles are commonly used in paints as opacifying agents, ...Open AccessArticle -
Mechanical properties of Ropaque hollow nanoparticles
Zhu, Liwen; Nguyen, Duc; Davey, Tim; Baker, Matthew; Such, Chris; Hawkett, Brian; Neto, ChiaraPublished 2017-10-15The elastic properties and strength upon compression of commercial Ropaque polystyrene hollow particles were investigated by atomic force microscopy (AFM). These particles are commonly used in paints as opacifying agents, ...Open AccessArticle -
Micropatterned Surfaces for Atmospheric Water Condensation via Controlled Radical Polymerization and Thin Film Dewetting
Wong, I.; Teo, G.H.; Neto, Chiara; Thickett, S.C.Published 2015-09-15Inspired by an example found in nature, the design of patterned surfaces with chemical and topographical contrast for the collection of water from the atmosphere has been of intense interest in recent years. Herein we ...Open AccessArticle -
Mimicking the Wettability of the Rose Petal using Self-assembly of Waterborne Polymer Particles
Telford, Andrew Michael; Hawkett, B.S.; Such, C.; Neto, ChiaraPublished 2013-07-23In this work, we present a novel platform to synthesize polymeric “raspberry” particles and explore their use to fabricate surfaces with low wettability and high water adhesion, resembling the properties of naturally ...Open AccessArticle -
Patterned chemisorption of proteins by thin polymer film dewetting
Lim, S.K.; Perrier, S.; Neto, ChiaraPublished 2013-01-10The covalent attachment of proteins and their patterning on surfaces are important in the bio-medical industry, for use in applications such as bio-sensing and biocompatible medical devices. In this work, proteins are ...Open AccessArticle -
Patterned polymer coatings increase the efficiency of dew harvesting
Al-Khayat, Omar; Hong, Jun Ki; Beck, David M.; Minett, Andrew I.; Neto, ChiaraPublished 2017-02-22Micropatterned polymer surfaces, possessing both topographical and chemical characteristics, were prepared on three-dimensional copper tubes and used to capture atmospheric water. The micropatterns mimic the structure on ...Open AccessArticle -
Protein Micropatterns by PEG Grafting on Dewetted PLGA Films
Ghezzi, Manuel; Thickett, S.C.; Telford, A.M.; Easton, C.D.; Meagher, L.; Neto, ChiaraPublished 2014-09-08The ability to control protein and cell positioning on a microscopic scale is crucial in many biomedical applications, such as single cell studies. We have developed and investigated the grafting of poly(ethylene glycol) ...Open AccessArticle -
A review on the mechanical and thermodynamic robustness of superhydrophobic surfaces
Scarratt, Liam R.J.; Steiner, Ullrich; Neto, ChiaraPublished 2017-05-30Advancements in the fabrication and study of superhydrophobic surfaces have been significant over the past 10 years, and some 20 years after the discovery of the lotus effect, the study of special wettability surfaces can ...Open AccessArticle -
Robust grafting of PEG-methacrylate brushes from polymeric coatings
Telford, A.M.; Meagher, L.; Neto, ChiaraPublished 2013-08-11A study is presented of the grafting of poly(ethylene glycol)methyl ether methacrylate (PEGMA) from polymeric macroinitiator films to form well-defined polymer brushes, using activators generated/regenerated by electron ...Open AccessArticle -
Tunable Nanopatterns via the Constrained Dewetting of Polymer Brushes
Lee, T.; Hendy, S.C.; Neto, ChiaraPublished 2013-07-29Coarse-grained molecular dynamics simulations were used to investigate the mor- phology and dynamics of nano-patterns formed by grafted polymer brushes on a non- adsorbing substrate as a result of constrained dewetting. ...Open AccessArticle -
Waterborne all-polymeric colloidal 'raspberry' particles with controllable hydrophobicity and water droplet adhesion properties
Telford, Andrew M.; Easton, Chris D.; Hawkett, Brian S.; Neto, ChiaraPublished 2016-01-29Wepresent a superhydrophobic coating made fromwaterborne, all-polymeric ‘raspberry’ particles, composed of a micrometric spherical core decorated with a corona of nanometric spherical particles. As-cast particles produced ...Open AccessArticle
Sort by:
Title A-Z