Area-selective and precise assembly of metal organic framework particles by atomic layer deposition induction and its application for ultra-sensitive dopamine sensor. (February 2022)

• Record Type: Journal Article
• Authors: Zhao, Zhe; Kong, Ye; Huang, Gaoshan; Liu, Chang; You, Chunyu; Xiao, Zhijia; Zhu, Hongqin; Tan, Ji; Xu, Borui; Cui, Jizhai; Liu, Xuanyong; Mei, Yongfeng
• Is Part Of: Nano today. Volume 42(2022)
• Publication Date: 2022-02
• Subjects: MOF metal organic framework -- ALD atomic layer deposition -- 3D three-dimensional -- MLD molecular layer deposition -- DA dopamine -- LOD limit of detection -- HDS hydroxyl double salt -- XRD X-ray diffraction -- H3TATB 4, 4', 4''-s-Triazine-2, 4, 6-triyl-tribenzoic acid -- SEM scanning electron microscopy -- EDS energy dispersive spectrometer -- XPS X-ray photoelectron spectroscopy -- PBS phosphate buffer solution -- CA citric acid -- THAM tromethamine -- LA lactic acid -- GL glucose -- RSD relative standard deviation -- DMF N, N-dimethylformamide -- DEZ Diethylzinc -- BET Brunauer-Emmett-Teller -- BJH Barrett Joyner Halenda -- GC glass carbon; Atomic layer deposition -- PCN-333 film -- Area-selective assembly -- Dopamine sensor; Nanotechnology -- Periodicals; Nanosciences -- Périodiques; 620.505
• DOI: 10.1016/j.nantod.2021.101347
• Languages: English
• ISSNs: 1748-0132

Abstract

Abstract: Weak interactions, non-uniformity and powdery assemblies limit the wide application of metal organic framework (MOF) in devices. Here we report a new strategy for area-selective assembly of MOF particles to prepare a thin film with the assistance of atomic layer deposition (ALD). Self-assembled hierarchically porous Fe-based MOF (PCN-333) films were formed on both flat and complex three-dimensional (3D) substrates by combining gas and liquid fabrication approaches, and can be precisely patterned with photolithography. We demonstrate that the PCN-333 film obtained possesses excellent electrochemical activity and can be applied in dopamine sensing for ultra-high sensitivity of 4637.78 µA mM −1 cm −2 with a wide linear range and a low limit of detection. Moreover, the PCN-333 film composite achieves a function of good selectivity of distinguishing dopamine and ascorbic acid. This strategy is promising to prepare MOF film-based on-chip devices with advanced functions. Graphical Abstract: Hierarchically porous Fe-based MOF (PCN-333) films were precisely assembled on both flat and complex three-dimensional substrates by using an approach combining gas and liquid processes with the assistance of atomic layer deposition, and can be precisely patterned by photolithography. The PCN-333 film obtained possesses excellent electrochemical activity and can be applied in dopamine sensing with ultra-high sensitivity. ga1 Highlights: Hierarchically porous MOF films were precisely assembled on flat and 3D substrates. Fe-based MOF films can be precisely patterned by photolithography. MOF structure exhibits high sensitivity towards dopamine detection.