Düsseldorf 2007 – scientific programme

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SYFM: Symposium Quantenkontrolle funktionaler Moleküle

SYFM 2: Quantum control of functional molecules II

SYFM 2.1: Invited Talk

Wednesday, March 21, 2007, 16:30–17:00, 6C

Photochromic systems and moving molecules and nano-objects — •Luisa De Cola — Westfälische Wilhelms-Universität, Physikalisches Institut and CeNTech, Mendelstr. 7, 48149 Münster, Germany

In this contribution I will discuss the use of the photochromic behavior of metal complexes. In particular the possibility to switch on/off photoinduced processes (e.g., energy transfer) controlling the state of the photochromic unit will be illustrated [1]. The talk will then focus on the use of mesoporous materials for the entrapping of dyes and their release upon photoisomerization of azobenzene derivatives linked to the pores [2]. Finally it will be shown how zeolite L, biocompatible nano- microcontainers, upon functionalization can be non-covalently linked to living organisms [3]. The filled zeolite, with fluorescent dyes, will be used to monitor the motion of bacteria and their uptake by cells will be discussed.

[1] for a recent review see: P. Belser, L. De Cola, et al., Adv Funct Mat 2006, 16, 195.

[2] P. Sierocki, H. P. A. Maas, P. Dragut, G. Richardt, F. Vögtle, L. De Cola, F. A. M. Brouwer, J. I. Zink, J.Phys.Chem. B 2006, 110, 24390 and paper submitted.

[3] Z. Popovic, M. Otter, G. Calzaferri, S. Huber, L. De Cola, submitted