fig17

Figure 17. (A and B) HOF-BTB has complex eight-fold interpenetrating structure; (B) HOF-BTB exhibits one-dimensional channels in the frame; (C) Different urine interfering substances were added to HOF-BTB with its SEM image; (D) The synthesis route of Fe-HOF and the experimental principle of Fe-HOF used in the detection of ascorbic acid; (E and F) SEM images of Fe-HOF at different magnifications; (G) Fluorescence response of HOF based assay system toward various coexisting species, including Na⁺, Ca²⁺, Zn²⁺, SO₄^2-, Mg²⁺, K⁺, and Cl^- (1 mM), Lys, Glu, Thr, His, Ala, and Leu (100 μM), AA, L-Cys, and GSH (5 μM). (A-C) are reprinted with permission from Ref.^[148], Copyright © 2023 by Academic Press Inc Press. (D-G) are reproduced with permission from Ref.^[147], Copyright © 2024 by Elsevier. HOF: Hydrogen-bonded organic framework; BTB: 1,3,5-tris (4-carboxyphenyl) benzene; SEM: scanning electron microscope; Lys: lysine; Glu: glutamic acid; Thr: threonine; His: histidine; Ala: alanine; Leu: leucine; Cys: cysteine; GSH: glutathione.