Lee, Seung-Woo Kang, Tae-Hyung Lee, Sung Ku Lee, Ki-Young Yi, Hyunjung 2024-01-19T21:32:37Z 2024-01-19T21:32:37Z 2021-09-04 2018-10-24 1944-8244 https://pubs.kist.re.kr/handle/201004/120775 Realizing high-performance electrochemical biosensors in a simple contact-printing-based approach significantly increases the applicability of integrated flexible biosensors. Herein, an enzyme-sticker-based approach that enables flexible and multielectrochemical sensors via simple contact-transfer printing is reported. The enzyme sticker consists of an enzymatic conductive network film and a polymeric support. The enzyme-incorporated nanostructured conductive network showing an efficient electrical coupling was assembled via the hydrodynamic layer-by-layer assembly of redox enzymes, polyelectrolytes, single-walled carbon nanotubes, and a biological glue material, M13 phage. The enzymatic conductive network on a polymeric membrane support was facilely wet contact-transfer printed onto integrated electrode systems by exploiting varying degrees of hydrophilicity displayed by the enzymatic electronic film, polymeric support, and receiving electrodes of the sensor system. The glucose sensors fabricated using the enzyme sticker detected glucose at a concentration of as low as 35 mu M and showed high selectivity and stability. Furthermore, a flexible dual-sensor array capable of detecting both glucose and lactate was demonstrated using the versatile enzyme sticker concept. This work presents a new route toward assembling and integrating hybrid nanomaterials with efficient electrochemical coupling for high-performance biosensors and health-monitoring devices as well as for emerging bioelectronics and electrochemical devices. English American Chemical Society DIRECT ELECTRON-TRANSFER WALLED CARBON NANOTUBES GLUCOSE-OXIDASE PRUSSIAN BLUE GRAPHENE SYSTEM NANOMESH SENSORS NANOSPHERES FABRICATION Hydrodynamic Layer-by-Layer Assembly of Transferable Enzymatic Conductive Nanonetworks for Enzyme-Sticker-Based Contact Printing of Electrochemical Biosensors Article 10.1021/acsami.8b13070 1 ACS Applied Materials & Interfaces, v.10, no.42, pp.36267 - 36274 ACS Applied Materials & Interfaces 10 42 36267 36274 scie scopus 000448754500065 2-s2.0-85054999501 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article DIRECT ELECTRON-TRANSFER WALLED CARBON NANOTUBES GLUCOSE-OXIDASE PRUSSIAN BLUE GRAPHENE SYSTEM NANOMESH SENSORS NANOSPHERES FABRICATION nondestructive assembly enzyme sticker contact printing electrochemical biosensors flexible biosensors biological glue glucose sensors