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Metal porphyrin array modified cellulose terephthalate for sustainable bacterial absorption and sterilization

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Abstract

The emergence of drug-resistant bacteria has induced the development of multifarious methods and materials for sterilization. Nevertheless, the effect of antibacterial materials to environment has still a challenge. To develop a reusable, eco-friendly material for antibacterial and absorption application, a metal porphyrin array modified cellulose terephthalate was fabricated through terephthalate modification of cellulose microfibers (CMFs) extracted from Chlorophytum comosum and interfacial synthesis of sulfide bridged metal porphyrin. The metal porphyrin array (PCN) modified cellulose terephthalate (CMF@PCNCu) exhibited excellent antibacterial capacity to E. coli (Escherichia coli) by interfering with pyruvic acid metabolism at a low-dose of 25 µg·mL− 1 and even at a smaller dose of 10 µg·mL− 1 with synergistic photothermal cure. Interestingly, CMF@PCNCu could absorb 6.8 × 107 CFU of bacteria per milligram, with good bacterial absorption efficiency after three cycles. These findings highlight the promise of CMF@PCNCu as a sustainable bacterial filter and an antibacterial material for the treatment of pathogenic bacteria polluted water.

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All data generated or analyzed during this study are included in this published article (and its supplementary information files).

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Acknowledgments

Financial support of National Natural Science Foundation of China (21571085), Reward Scientific Research Project of Shanxi (SXBYKY2022025).

Funding

This study was supported by grants from National Natural Science Foundation of China (21571085) and Reward Scientific Research Project of Shanxi (SXBYKY2022025).

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W.M: Methodology, investigation, formal analysis, original writing. J.W.: Investigation, experimental operation. Q.C.: Conceptualization, supervision, editing.

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Correspondence to Qiu-Yun Chen.

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Mu, WY., Wang, J. & Chen, QY. Metal porphyrin array modified cellulose terephthalate for sustainable bacterial absorption and sterilization. Cellulose 30, 5845–5856 (2023). https://doi.org/10.1007/s10570-023-05256-y

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  • DOI: https://doi.org/10.1007/s10570-023-05256-y

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