Nannochloropsis Oceanica derived nitrogen-rich macroporous carbon for bi-atomic matching-catalytic flexible dopamine sensor

Qianqian Fu; Zhuanzhuan Shi; Xiaoshuai Wu; Yunpeng Li; Liang Liu; Fang Shi; Wei Sun; Chunxian Guo; Chang Ming Li

Biosensors and Bioelectronics: X (Sep 2022)

Nannochloropsis Oceanica derived nitrogen-rich macroporous carbon for bi-atomic matching-catalytic flexible dopamine sensor

Qianqian Fu,
Zhuanzhuan Shi,
Xiaoshuai Wu,
Yunpeng Li,
Liang Liu,
Fang Shi,
Wei Sun,
Chunxian Guo,
Chang Ming Li

Affiliations

Qianqian Fu: Institute of Advanced Cross-field Science, College of Life Science, Qingdao University, Qingdao, 266071, PR China
Zhuanzhuan Shi: Institute for Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China; Corresponding author.
Xiaoshuai Wu: Institute for Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
Yunpeng Li: Institute for Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
Liang Liu: Institute for Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
Fang Shi: Institute of Advanced Cross-field Science, College of Life Science, Qingdao University, Qingdao, 266071, PR China
Wei Sun: Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, PR China
Chunxian Guo: Institute for Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
Chang Ming Li: Institute of Advanced Cross-field Science, College of Life Science, Qingdao University, Qingdao, 266071, PR China; Institute for Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China; Corresponding author. Institute for Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, PR China.

Journal volume & issue: Vol. 11
p. 100184

Abstract

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Nannochloropsis Oceanica (N. Oceanica), a microalga was used to derive a nitrogen-rich macroporous carbon (NMC) by a controlled carbonization process. The as-prepared NMC was employed to successfully fabricate a silk fabric-based flexible dopamine (DA) sensor for a broad detection range (0.02–2500 μM) and an extremely low limit of detection (0.006 μM). This ranks the best among all reported plain biochar-based ones. The sensing enhancement mechanism is attributed to the rich nitrogen atoms for a bi-atomic matching-catalysis scheme between catalytic centers and reaction sites of DA. The macroporous carbon can engages fast mass-transport but more importantly renders more robust than a meso/micropore structure for superior flexibility. This work offers a fresh thought to fabricate a highly stable and flexible sensor by using macroporous carbons but with rich nitrogen as catalysis centers for unique catalysis scheme.

Published in Biosensors and Bioelectronics: X

ISSN: 2590-1370 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Chemical technology: Biotechnology
Website: https://www.journals.elsevier.com/biosensors-and-bioelectronics-x

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