Noël Jean-Marc, Mottet Léopold, Bremond Nicolas, Poulin Philippe, Combellas Catherine, Bibette Jérôme, Kanoufi Frédéric
Sorbonne Paris Cité , Paris Diderot University , Interfaces , Traitements , Organisation et Dynamique des Systèmes (ITODYS) , CNRS-UMR 7086 , 15 rue J. A. de Baif , 75013 Paris , France . Email:
Laboratoire Colloïdes et Matériaux Divisés , Institute of Chemistry , Biology and Innovation (CBI) - ESPCI ParisTech/CNRS-UMR8231/PSL Research University , 10 rue Vauquelin 75231 , Paris Cedex , France.
Chem Sci. 2015 Jul 1;6(7):3900-3905. doi: 10.1039/c5sc00549c. Epub 2015 Apr 8.
The local functionalities of biocompatible objects can be characterized under conditions similar to the operating ones, using scanning electrochemical microscopy (SECM). In the case of alginate beads entrapping carbon nanotubes (CNTs), SECM allows evidencing of the local conductivity, organization, and communication between the CNTs. It shows that the CNT network is active enough to allow long range charge evacuation, enabling the use of alginate/CNT beads as soft 3D electrodes. Direct connection or local interrogation by a microelectrode allows visualization of their communication as a network and eventually the study of them individually at the nanoscale.
使用扫描电化学显微镜（SECM），可在与操作条件相似的情况下对生物相容性物体的局部功能进行表征。对于包裹碳纳米管（CNT）的藻酸盐珠，SECM能够证明CNT之间的局部导电性、组织性和连通性。结果表明，CNT网络具有足够的活性以实现长程电荷疏散，从而能够将藻酸盐/CNT珠用作柔软的三维电极。通过微电极进行直接连接或局部探测，可以将它们之间的连通性可视化为一个网络，并最终在纳米尺度上对其进行单独研究。
