C. Hubert, C. Chomette, A. Désert, M. Sun, M. Treguer, S. Mornet, A. Perro, E. Duguet, S. Ravaine

Faraday Discuss., 2015, 181, 139-146

Silica particles with a controlled number of entropic patches, i.e. dimples, are synthesized through the growth of the silica core of binary multipods that have been produced by a seeded-growth emulsion polymerization reaction. Transmission electron microscopy studies indicate that the silica surface conforms to the shape of the polystyrene (PS) nodules of the multipods while growing, allowing a good control of the final shape of the dimpled silica particles. The PS nodules are also used as protecting masks to regioselectively graft amino groups, as revealed by the adsorption of gold markers. After dissolution of the PS nodules, some polymer chains remain grafted onto the silica surface, forming organic bumps. These residues are also selectively functionalized, leading to silica particles with both entropic and enthalpic patches.

TOC

 

Thumbnail Enikő Krisch, Léa Messager, Benjámin Gyarmati, Valérie Ravaine, and András Szilágyi Macromol. Mater. Eng. 2016, 301(3), 260–266 Nanogels loaded with fluorescent dextran as a model drug are...
Thumbnail Thibaut Divoux, Véronique Lapeyre, Valérie Ravaine, and Sébastien Manneville Phys. Rev. E 2015, 92, 060301(R) Flows of suspensions are often affected by wall slip, that is, the fluid velocity Vf in...
Thumbnail Florent Pinaud, Romain Millereux, Pierre Vialar-Trarieux, Bogdan Catargi, Sandra Pinet, Isabelle Gosse, Neso Sojic, Valérie Ravaine J. Phys. Chem. B, 2015, 119 (40), pp 12954–12961...
Thumbnail L. Koefoed, K. Shimizu, S. U. Pedersen, K. Daasbjerg, A. Kuhn, and D. Zigah RSC Adv., 2015, DOI: 10.1039/c5ra20156j Bipolar electrochemistry (BPE) is widely used to trigger electrochemical reactions...
Thumbnail V. Badets, D. Duclos, D. Quinton, O. Fontaine, D. Zigah Electrochimica Acta, 2015,doi:10.1016/j.electacta.2015.10.066 A dual gold-copper microelectrode (diameter 25 μm) was fabricated to be...
Thumbnail C. Adam, A. Wallabregue, H. Li, J. Gouin, R. Vanel, S. Grass, J. Bosson, L. Bouffier, J. Lacour and N. Sojic. Chem. Eur. J., 2015, 21, 19243-19249. Trianguleniums are fascinating conjugated...
Thumbnail S. Chen, G. Wantz, L. Bouffier and J. Gao. ChemElectroChem, 2016, 3, 392-398. We present solid-state, polymer-based, light-emitting electrochemical cells incorporating bipolar electrodes (BPEs)...
Thumbnail E. Pedraza, A. Karajić, M. Raoux, R. Perrier, A. Pirog, F. Lebreton, S. Arbault, J. Gaitan, S. Renaud, A. Kuhn, J. Lang Lab Chip, 2015, 15, 3880–3890 We are developing a cell-based bioelectronic...
Thumbnail M. Valetaud, G. Loget, J. Roche, N. Hüsken, Z. Fattah, V. Badets, O. Fontaine, D. Zigah. J. Chem. Educ., 2015, 92 (10), pp 1700–1704. The Electrochemical Pen (EChemPen) was developed as an...
Thumbnail C. Kumsapaya, J. Limtrakul, A. Kuhn, D. Zigah, C. Warakulwit. ChemElectroChem, 2016, 3, 410-414. Vertically aligned carbon nanotubes were grown over the inner wall of the pores of an anodic...
Thumbnail G. Tisserant, J. Gillion, J. Lannelongue, Z. Fattah, P. Garrigue, J. Roche, D. Zigah, B. Goudeau, A. Kuhn and L. Bouffier.  ChemElectroChem, 2016, 3, 387-391. The preparation of surface...
Thumbnail T. Yutthalekha, C. Warakulwit, J. Limtrakul, A. Kuhn Electroanalysis, 2015, Special Issue Advanced Materials, in press Chiral imprinted mesoporous platinum was electrochemically synthesized in the presence of...
Thumbnail A. Karajić, S. Reculusa, M. Heim, P. Garrigue, S. Ravaine, N. Mano, A. Kuhn Adv. Mater. Interfaces, 2015, in press We report the bottom-up design of a fully integrated and miniaturized...
Thumbnail M. Sentic, S. Arbault, L. Bouffier, D. Manojlovic, A. Kuhn and N. Sojic.   Chem. Sci., 2015, 6, 4433-4437.   Among luminescence techniques, electrogenerated chemiluminescence (ECL) provides a...
Thumbnail A. Srinivasan, J. Roche, V. Ravaine and A. KuhnSoft Matter, 2015, 11, 3958-3962 In the present work, we introduce a new approach for the synthesis of asymmetric particles made from electrically...
Thumbnail C. Adam, F. Kanoufi, N. Sojic and M. Etienne. Electrochim. Acta, 2015, in press. Shearforce detection was applied to the controlled positioning of nanotip arrays at air/solid and liquid/solid...
Thumbnail G. Tisserant, Z. Fattah, C. Ayela, J. Roche, B. Plano, D. Zigah, B. Goudeau, A. Kuhn and L. Bouffier.  Electrochim. Acta, 2015, 179, 276-281. Bipolar electrochemistry is an unconventional...
Thumbnail Y. Percherancier, B. Goudeau, R. Charlet de Sauvage, F. Poulletier de Gannes, E. Haro, A. Hurtier, N. Sojic, I. Lagroye, S. Arbault, and B. Veyret Bioelectromagnetics, 2015, 36, 4, 287-293. The...
Thumbnail C. Hubert, C. Chomette, A. Désert, M. Sun, M. Treguer, S. Mornet, A. Perro, E. Duguet, S. Ravaine Faraday Discuss., 2015, 181, 139-146 Silica particles with a controlled number of entropic patches,...
Thumbnail V. Eßmann, D. Jambrec, A. Kuhn, W. Schuhmann Electrochem. Comm. 2015, 50, 77–80. The range of potential analytes for bipolar electrochemistry can be significantly extended by modification of...