séminaire "Matière molle et complexe" : Reiko Oda

Reiko Oda, du laboratoire 'Chimie et Biologie des Membranes et des Nanoobjets' (CBMN / CNRS - Université Bordeaux) donnera un séminaire intitulé : " Chiral molecule to chiral nanoobjects"

Recently, there are many reports on biologically inspired helical structure obtained by polymers, foldamers and low molecular-weight molecules. The helices with controllable pitches are attractive not only to mimic nature, but also for the wide range of applications in materials sciences, chemical and biomaterial sensing, and enantioselective catalysis. We have reported that chiral supramolecular assembly system can be achieved from non-chiral cationic surfactants with chiral counterions,1 the role of the latter is extremely important to control the intimate morphologies of these chiral nanostructures. Such structures can then be used as scaffold to obtain hybrid organic/inorganic nanohelices,2 which can be used as a) nano-sensors, b) biomimicking objects, or c) the chiral environment of which can be used to organize nanoparticles or chromophore 3 and thus induce chiroptical signals.

[1] Oda, R.et al., Nature, 1999, 399, 566 ;Brizard, A.et al., J. Am. Chem. Soc., 2007, 129
3754 ; R. Tamoto et al., Chem commun, 2015, 51, 3518-3521. 

[2] Delclos, T.et al., Nano Letters 2008, 8 (7), 1929-1935 ;Okazaki et al., Acs Nano, 2014. 8(7) : 6863-6872 ; Y Okazaki et al., ACS
Nano, 2014 (6) PMID : 24883981.

[3] Tamoto et al., The Journal of Physical Chemistry C 2012, 116 (43), 23143-23152 ; N. Ryuet al., Chem Commun, 2016, 52, 34, 5600-5603 ; J. Cheng et al., DOI :
10.1021/acsnano.6b08723