3D Nanocomposite with High Aspect Ratio Based on Polyaniline Decorated with Silver NPs: Synthesis and Application as Electrochemical Glucose Sensor
Anna A. Vasileva,
Daria V. Mamonova,
Vladimir Mikhailovskii,
Yuri V. Petrov,
Yana G. Toropova,
Ilya E. Kolesnikov,
Gerd Leuchs,
Alina A. Manshina
Affiliations
Anna A. Vasileva
Institute of Chemistry, Saint-Petersburg State University, Ulyanovskaya st. 5, Saint-Petersburg 198504, Russia
Daria V. Mamonova
Institute of Chemistry, Saint-Petersburg State University, Ulyanovskaya st. 5, Saint-Petersburg 198504, Russia
Vladimir Mikhailovskii
Interdisciplinary Resource Center for Nanotechnology, Research Park, Saint-Petersburg State University, Ulyanovskaya 1, Saint-Petersburg 198504, Russia
Yuri V. Petrov
Department of Physics, Saint-Petersburg State University, Ulyanovskaya st. 3, Saint-Petersburg 198504, Russia
Yana G. Toropova
Almazov National Medical Research Centre, Akkuratova st. 2, Saint-Petersburg 197341, Russia
Ilya E. Kolesnikov
Center for Optical and Laser Materials Research, Saint-Petersburg State University, Ulyanovskaya 5, Saint-Petersburg 198504, Russia
Gerd Leuchs
Max Planck Institute for the Science of Light, Staudtstr. 2, 91058 Erlangen, Germany
Alina A. Manshina
Institute of Chemistry, Saint-Petersburg State University, Ulyanovskaya st. 5, Saint-Petersburg 198504, Russia
In this paper, we present a new methodology for creating 3D ordered porous nanocomposites based on anodic aluminum oxide template with polyaniline (PANI) and silver NPs. The approach includes in situ synthesis of polyaniline on templates of anodic aluminum oxide nanomembranes and laser-induced deposition (LID) of Ag NPs directly on the pore walls. The proposed method allows for the formation of structures with a high aspect ratio of the pores, topological ordering and uniformity of properties throughout the sample, and a high specific surface area. For the developed structures, we demonstrated their effectiveness as non-enzymatic electrochemical sensors on glucose in a concentration range crucial for medical applications. The obtained systems possess high potential for miniaturization and were applied to glucose detection in real objects—laboratory rat blood plasma.
