Publication

Tunable surface nanostructures from Block copolymer self-assembly

Related publications (102)

Exploiting Substrate Stress To Modify Nanoscale SAM Patterns

We describe a simple method based on postadsorption substrate stress induction to modify and control nanoscale phase-separated patterns formed in self-assembled monolayers. We show using mesoscale computer simulations and experiments that this method helps ...

2009

Fluidic-mediated self-assembly for hybrid functional micro/nanosystems (SELFSYS)

Jürgen Brugger, Alcherio Martinoli, Cristina Martin Olmos, Loïc Jacot-Descombes, Grégory Mermoud, Elsa Le Caignec

Our purpose is to develop self-assembly of microcompounds into pairs with encapsulation of a functional liquid and later their disassembly and the release of their content. One of the issues is to perform this at various scales. ...

2009

Characterization of monomeric and gemini cationic amphiphilic molecules by fluorescence intensity and anisotropy

Kuppuswamy Kalyanasundaram, Guido Viscardi

Pyrene fluorescence intensity and conductivity measurements were used to determine the cmc of two monomeric surfactants namely, dodecyltrimethylammonium bromide and cetyltrimethylammonium bromide as well as two gemini surfactants, 16-3-16 2Br and 16-4-16 2 ...

2009

Characterization of monomeric and gemini cationic amphiphilic molecules by fluorescence intensity and anisotropy

Kuppuswamy Kalyanasundaram

Elsevier2009

Solution behavior of peptide and peptide-hybrid materials

Harald Nuhn

Peptide based and peptide hybrid materials represent two interesting and challenging classes of biomaterials. Both classes consist of and contain, respectively, one or more polypeptide blocks, endowing the resulting polymers with enhanced self-assembly pro ...

EPFL2008

Novel applications of poly(ethylene glycol)-bl-poly(propylene sulfide) block copolymers

Conlin O'Neil

Block copolymers are comprised of repeating chemical groups (blocks) which commonly contain at least one hydrophilic block coupled to at least one hydrophobic block, forming an amphipathic macromolecule. This molecular arrangement drives the self assembly ...

EPFL2008

Micropatterning of protein-functionalized magnetic beads on glass using electrostatic self-assembly

Martinus Gijs, Abdeljalil Sayah, Caroline Vandevyver, Venkataragavalu Sivagnanam

We demonstrate a simple and fast method for self-assembly-driven micropatterning of protein functionalized magnetic beads on glass. We use positively charged aminosilane micro-patterns as template for selective immobilization of streptavidin-coated beads b ...

2008

The systematic tunability of nanoparticle dimensions through the controlled loading of surface-deposited diblock copolymer micelles

Jürgen Brugger, Sivashankar Krishnamoorthy, Harry Heinzelmann, Raphaël Pugin

The continuous tunability of iron oxide nanoparticle dimensions is demonstrated using the pH controlled loading of ferric nitrate from aqueous solution into polystyrene–block–polyacrylic acid reverse micelles deposited on a silicon substrate. Quasi-hexagon ...

2008

Breakdown kinetics of aggregates from poly(ethylene glycol-bl-propylene sulfide) di- and triblock copolymers induced by a non-ionic surfactant

Jeffrey Alan Hubbell

We explored the effects of addition of the nonionic surfactant Triton X-100 on the stability of aggregates of poly(ethylene glycol-bl-propylene sulfide) di- and triblock copolymers. Fluorescence spectra of pyrene, used as a probe molecule, elucidated the v ...

2008

Triblock copolymers for cytoplasmic delivery of gene-based drugs

Jeffrey Alan Hubbell

The invention features a triblock copolymer including a hydrophilic block a hydrophobic block and a positively charged block capable of reversibly complexing a negatively charged molecule, e.g., a nucleic acid, wherein the hydrophobic block is disposed bet ...

2007

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