Séminaire DCMI présenté par Francisco J. Terán

iMdea Nanociencia, Campus Universitario de Cantoblanco, 28049 Madrid, Spain
Nanobiotecnología (iMdea Nanociencia), Unidad Asociada al Centro Nacional de Biotecnología-CSIC , Campus Universitario de Cantoblanco, 28049 Madrid, Spain
Nanotech Solutions SL, Ctra Madrid 23, 40150 Villacastín, Spain

par Zoom :

ID de réunion : 835 1668 0265
Code secret : v1fGRa

Résumé : Nowadays, the progress of nanoparticle engineering enables the synthesis of magnetic nanocrystals with customized physical, chemical, and/or biological properties. Recent works underline the influence of biological entities on determining the magnetic response of magnetic nanoparticles under alternating magnetic fields. Here, I will present some examples showing the potential of AC magnetometry for probing the interactions between magnetic nanoparticles and biological molecules and cells. First, the elucidation of the colloidal stability of iron oxide nanoparticles under physiological conditions1,3. Second, the influence of cell internalization on the dynamical magnetic response of iron oxide nanoparticles.2 Finally, the potential of using AC magnetometry as a powerful and useful tool for quick characterization of the distinct bioconjugation steps of magnetic nanoparticles with recognition ligands and drugs will be shown.

  • 1.- A. Aires et al. Chem.Nano.Mat 2016 DOI: 10.1002/cnma.201600333
  • 2.- D. Cabrera et al. ACS Nano 12(3), 2741 (2018)
  • 3.- A. Aires et al. METHOD FOR DETECTION OF AN ANALYTE; Patent application: WO2019/092131

Séminaire DCMI : Dr. Civan AVCI

Dr. Civan AVCI

Laboratoire de Chimie de la Matière Condensée de Paris
(UMR 7574 Sorbonne Université, CNRS, Collège de France)

Résumé : Zeolitic imidazolate framework-8 (ZIF-8) is a member of the metal-organic framework (MOF) family that is a new class of material with ultra-high porosity useful for several applications including gas storage, molecular sieving and catalysis. So far, countless studies have been reported, showing applications that are related to the bulk properties of MOFs, and by extension ZIF-8. On the other hand, the controlled manipulation of these molecular crystals at the nano-scale is still embryonic. Here, the presentation will focus on colloidal manipulation of ZIF-8 crystals: their size and shape engineering using top-down and bottom-up approaches at the nano-scale, their self-assembly into superstructures at the meso-scale and their potential applications (such as photonics) at the macro-scale.

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