Conjugation-regulating synthesis of high photosensitizing activity porphyrin-based covalent organic frameworks for photodynamic inactivation of bacteria

Meng, Fan‐Lin; Yan, Xiu‐Ping

doi:10.1016/j.talanta.2021.122536

Cited by 20 publications

(12 citation statements)

References 42 publications

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“…The porphyrin-based COF material has a certain photodynamic property according to the previous reports, − which generates singlet oxygen ( 1 O 2 ) to kill bacteria effectively under the irradiation of a suitable light source. According to Figure S19, the UV–vis absorption peak of the BC/COF composite membrane was at 433 nm.…”

Section: Resultsmentioning

confidence: 99%

Multifunctional Bacterial Cellulose/Covalent Organic Framework Composite Membranes with Antifouling and Antibacterial Properties for Dye Separation

Zhang

Chen

Dong

et al. 2023

ACS Appl. Mater. Interfaces

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Covalent organic frameworks (COFs) have a wide application prospect in wastewater treatment because of their unique structure and properties; however, the preparation of pure COF membranes remains a great challenge by reason of the insolubility and unprocessability of COF powders formed at high temperature and high pressure. In this study, a continuous and defect-free bacterial cellulose/covalent organic framework composite membrane was prepared by using bacterial cellulose (BC) and a porphyrin-based COF with their unique structures and hydrogen bonding forces. The dye rejection rate of this composite membrane toward methyl green and congo red was up to 99%, and the permeance was about 195 L m −2 h −1 bar −1 . It showed excellent stability under different pH conditions, long-time filtration, and cyclic experimental conditions. In addition, the hydrophilicity and surface negativity of the BC/COF composite membrane made it have certain antifouling performance, and the flux recovery rate can reach 93.72%. More importantly, the composite membrane exhibited excellent antibacterial properties due to the doping of the porphyrin-based COF, and the survival rates of both Escherichia coli and Staphylococcus aureus were less than 1% after exposure to visible light. The self-supporting BC/COF composite membrane synthesized by this strategy also has outstanding antifouling and antibacterial properties, in addition to excellent dye separation effects, which greatly broaden the application of COF materials in water treatment.

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Section: Resultsmentioning

confidence: 99%

Multifunctional Bacterial Cellulose/Covalent Organic Framework Composite Membranes with Antifouling and Antibacterial Properties for Dye Separation

Zhang

Chen

Dong

et al. 2023

ACS Appl. Mater. Interfaces

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“…In addition, Por−COF−366 and MPor−COF−366 composites exhibited sharp pyrrole ring vibration at 797 cm −1 , and the characteristic stretching vibrations of C=N at 1623 cm −1 were seen in FTIR spectrum ( Figure 2 B). There were also absorbance peaks at 1691 cm −1 and 3325 cm −1 , which were attributed, respectively, to the residual C=O and stretching N-H vibration of residual -NH 2 groups [ 26 ].…”

Section: Resultsmentioning

confidence: 99%

Ultrasensitive Electrochemical Detection of Butylated Hydroxy Anisole via Metalloporphyrin Covalent Organic Frameworks Possessing Variable Catalytic Active Sites

et al. 2022

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Three novel two-dimensional metalloporphyrin COFs (MPor−COF−366, M = Fe, Mn, Cu) were fabricated by changing the metal atoms in the center of the porphyrin framework. The physicochemical characteristics of MPor−COF−366 (M = Fe, Mn, Cu) composites were fully analyzed by diverse electron microscopy and spectroscopy. Under optimal conditions, experiments on determining butylated hydroxy anisole (BHA) at FePor−COF−366/GCE were conducted using differential pulse voltammetry (DPV). It is noted that the FePor−COF−366/GCE sensor showed excellent electrocatalytic performance in the electrochemical detection of BHA, compared with MnPor−COF−366/GCE and CuPor−COF−366/GCE. A linear relationship was obtained for 0.04–1000 μM concentration of BHA, with a low detection limit of 0.015 μM. Additionally, the designed sensor was successfully employed to detect BHA in practical samples, expanding the development of COF-based composites in electrochemical applications.

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“…under light, causing the oxidation of bacterial membrane structures and killing bacteria. [852][853][854][855][856][857] Additionally, COFs can be composited with other antimicrobial nanomaterials, such as Fe-based MOFs, 858 MXenes, 859 and nanosilver, 860 to enhance the adhesion of the biomaterials on the bacterial surface and improve the antimicrobial activity. Fe-metalated COFs can induce bacterial death by virtue of the chemodynamic activity of Fe(II).…”

Section: Biomedicinementioning

confidence: 99%

Metalated covalent organic frameworks: from synthetic strategies to diverse applications

2022

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Conjugation-regulating synthesis of high photosensitizing activity porphyrin-based covalent organic frameworks for photodynamic inactivation of bacteria

Cited by 20 publications

References 42 publications

Multifunctional Bacterial Cellulose/Covalent Organic Framework Composite Membranes with Antifouling and Antibacterial Properties for Dye Separation

Multifunctional Bacterial Cellulose/Covalent Organic Framework Composite Membranes with Antifouling and Antibacterial Properties for Dye Separation

Ultrasensitive Electrochemical Detection of Butylated Hydroxy Anisole via Metalloporphyrin Covalent Organic Frameworks Possessing Variable Catalytic Active Sites

Metalated covalent organic frameworks: from synthetic strategies to diverse applications

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