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Zhang J, Yuan Z, Wang C, Liu L, Wang Y, Guo Y, Zhao G. Aqueous-phase dual-functional chiral perovskites for hydrogen sulfide (H 2S) detection and antibacterial applications in Escherichia coli. J Colloid Interface Sci 2024; 661:740-749. [PMID: 38325172 DOI: 10.1016/j.jcis.2024.01.207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/09/2024]
Abstract
Perovskite nanocrystals (PNCs) have attracted extensive attention for their potential applications in biology. However, only a handful of PNCs have been scrutinized in the biological domain due to issues such as instability, poor dispersion, and size inhomogeneity in polar solvents. The development of dual-functional perovskite nanomaterials with hydrogen sulfide (H2S) sensing and antibacterial capabilities is particularly intriguing. In this study, we prepared chiral quasi-two-dimensional (quasi-2D) perovskite nanomaterials, Bio(S-PEA)2CsPb2Br7 and Bio(R-PEA)2CsPb2Br7, that were uniformly dispersed in aqueous media. The effective encapsulation of methoxypolyethylene glycol amine (mPEG-NH2) improved water stability and uniformity of particle size. Circular dichroism (CD) signals were created by the successful insertion of chiral cations. These perovskites as probes showed a rapid and sensitive fluorescence quenching response to H2S, and the effect of imaging detection was observed at the Escherichia coli (E. coli) level. As antibacterial agents, their pronounced positive charge properties facilitated membrane lysis and subsequent E. coli death, indicating a significant antibacterial effect. This work has preliminary explored the application of chiral perovskites in biology and provides insight into the development of bifunctional perovskite nanomaterials for biological applications.
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Affiliation(s)
- Jingran Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Zihan Yuan
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Chao Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, School of Science, Tianjin University, Tianjin 300354, China; National Engineering Research Center of Biomaterials, Nanjing Forestry University, Nanjing 210037, China
| | - Lele Liu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Yanan Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Yurong Guo
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, School of Science, Tianjin University, Tianjin 300354, China
| | - Guangjiu Zhao
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, National Demonstration Center for Experimental Chemistry and Chemical Engineering Education, School of Science, Tianjin University, Tianjin 300354, China.
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