1
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Li F, Dong PZ, Sun SK, Zhai SM, Zhao BX, Lin ZM. A near-infrared fluorescent probe for simultaneous detection of pH and viscosity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 318:124486. [PMID: 38788506 DOI: 10.1016/j.saa.2024.124486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/16/2024] [Accepted: 05/19/2024] [Indexed: 05/26/2024]
Abstract
In this work, we developed a ratiometric fluorescent probe (NT) based on ICT framework in near-infrared (NIR) which could detect pH and viscosity simultaneously. Long emission wavelength in NIR could protect the probe from interference of background fluorescence and improve the accuracy of the test. Due to the presence of thiazole-salt, the probe possessed good water solubility and could respond immediately to pH in water system. The pH values measured by NT in the actual samples were not much different from that measured by the pH meter, therefore, NT could give excellent accuracy. NT realized the reversible detection of pH by protonation and deprotonation. NT was used successfully to detect the pH of actual water samples, human serum and meat, as well as the viscosity variation caused by thickeners. Additionally, NT could monitor the changes of pH and viscosity in living cells. Therefore, the novel probe exhibited potential application in the fields of the environment, human health and food safety evaluation.
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Affiliation(s)
- Feng Li
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Pei-Zhen Dong
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Shou-Kang Sun
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Shu-Mei Zhai
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
| | - Zhao-Min Lin
- Institute of Medical Sciences, The Second Hospital of Shandong University, Jinan 250033, PR China.
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2
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Gui R, Jin H. Organic fluorophores-based molecular probes with dual-fluorescence ratiometric responses to in-vitro/in-vivo pH for biosensing, bioimaging and biotherapeutics applications. Talanta 2024; 275:126171. [PMID: 38703479 DOI: 10.1016/j.talanta.2024.126171] [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: 01/31/2024] [Revised: 04/19/2024] [Accepted: 04/25/2024] [Indexed: 05/06/2024]
Abstract
In recent years, organic fluorophores-based molecular probes with dual-fluorescence ratiometric responses to in-vitro/in-vivo pH (DFR-MPs-pH) have been attracting much interest in fundamental application research fields. More and more scientific publications have reported the exploration of various DFR-MPs-pH systems that have unique dual-fluorescence ratiometry as the signal output, in-built and signal self-calibration functions to improve precise detection of targets. DFR-MPs-pH systems possess high-performance applications in biosensing, bioimaging and biomedicine fields. This review has comprehensively summarized recent advances of DFR-MPs-pH for the first time. First of all, the compositions and types of DFR-MPs-pH are introduced by summarizing different organic fluorophores-based molecule systems. Then, construction strategies are analyzed based on specific components, structures, properties and functions of DFR-MPs-pH. Afterward, biosensing and bioimaging applications are discussed in detail, primarily referring to pH sensing and imaging detection at the levels of living cells and small animals. Finally, biomedicine applications are fully summarized, majorly involving bio-toxicity evaluation, bio-distribution, biomedical diagnosis and therapeutics. Meanwhile, the current status, challenges and perspectives are rationally commented after detailed discussions of representative and state-of-the-art studies. Overall, this present review is comprehensive, in-time and in-depth, and can facilitate the following further exploration of new and versatile DFR-MPs-pH systems toward rational design, facile preparation, superior properties, adjustable functions and highly efficient applications in promising fields.
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Affiliation(s)
- Rijun Gui
- College of Chemistry and Chemical Engineering, Intellectual Property Research Institute, Qingdao University, Shandong, 266071, PR China.
| | - Hui Jin
- College of Chemistry and Chemical Engineering, Intellectual Property Research Institute, Qingdao University, Shandong, 266071, PR China
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3
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Han X, Li B, Wang W, Feng B, Tang Q, Qi Y, Zhao R, Qiu W, Zhao S, Pan Z, Guo X, Du H, Qiu J, Liu H, Li G, Xue H. Cerium Vanadate Nanozyme with pH-Dependent Dual Enzymatic Activity for Glioblastoma Targeted Therapy and Postradiotherapy Damage Protection. ACS NANO 2024. [PMID: 39016679 DOI: 10.1021/acsnano.4c06616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Nanocatalytic therapy is an emerging technology that uses synthetic nanoscale enzyme mimics for biomedical treatment. However, in the field of neuroscience, achieving neurological protection while simultaneously killing tumor cells is a technical challenge. Herein, we synthesized a biomimic and translational cerium vanadate (CeVO4) nanozyme for glioblastoma (GBM) therapy and the repair of brain damage after GBM ionizing radiation (IR). This system exhibited pH dependence: it showed potent Superoxide dismutase (SOD) enzyme activity in a neutral environment and Peroxidase (POD) enzyme activity in an acidic environment. In GBM cells, this system acted in lysosomes, causing cellular damage and reactive oxygen species (ROS) accumulation; in neuronal cells, this nanozyme could undergo lysosomal escape and nanozyme aggregation with mitochondria, reversing the mitochondrial damage caused by IR and restoring the expression level of the antiapoptotic BCL-2 protein. Mechanistically, we believe that this distribution difference is related to the specific uptake internalization mechanism and lysosomal repair pathway in neurons, and ultimately led to the dual effect of tumor killing and nerve repair in the in vivo model. In summary, this study provides insight into the repair of brain damage after GBM radiation therapy.
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Affiliation(s)
- Xiao Han
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
- Department of Neurosurgery, Children's Hospital Affiliated to Shandong University, Jinan Children's Hospital, Jinan, Shandong 250001, P.R. China
| | - Boyan Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Wenhan Wang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Bowen Feng
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Qilin Tang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Yanhua Qi
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Rongrong Zhao
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Wei Qiu
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Shulin Zhao
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Ziwen Pan
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Xiaofan Guo
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Hao Du
- Department of Cell Biology, University of Connecticut School of Medicine, Farmington, Connecticut 06032, United States
| | - Jichuan Qiu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong 250100, P. R. China
| | - Hong Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong 250100, P. R. China
- Institute for Advanced Interdisciplinary Research (IAIR), University of Jinan, Jinan, Shandong 250022, P. R. China
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
| | - Hao Xue
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, Shandong 250012, P. R. China
- Shandong Key Laboratory of Brain Function Remodeling, Jinan, Shandong 250012, P. R. China
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Wang XF, Duan YF, Zhu YQ, Liu ZJ, Wu YC, Liu TH, Zhang L, Wei JF, Liu GC. An Insulin-Modified pH-Responsive Nanopipette Based on Ion Current Rectification. SENSORS (BASEL, SWITZERLAND) 2024; 24:4264. [PMID: 39001043 PMCID: PMC11244478 DOI: 10.3390/s24134264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/17/2024] [Accepted: 06/21/2024] [Indexed: 07/16/2024]
Abstract
The properties of nanopipettes largely rely on the materials introduced onto their inner walls, which allow for a vast extension of their sensing capabilities. The challenge of simultaneously enhancing the sensitivity and selectivity of nanopipettes for pH sensing remains, hindering their practical applications. Herein, we report insulin-modified nanopipettes with excellent pH response performances, which were prepared by introducing insulin onto their inner walls via a two-step reaction involving silanization and amidation. The pH response intensity based on ion current rectification was significantly enhanced by approximately 4.29 times when utilizing insulin-modified nanopipettes compared with bare ones, demonstrating a linear response within the pH range of 2.50 to 7.80. In addition, insulin-modified nanopipettes featured good reversibility and selectivity. The modification processes were monitored using the I-V curves, and the relevant mechanisms were discussed. The effects of solution pH and insulin concentration on the modification results were investigated to achieve optimal insulin introduction. This study showed that the pH response behavior of nanopipettes can be greatly improved by introducing versatile molecules onto the inner walls, thereby contributing to the development and utilization of pH-responsive nanopipettes.
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Affiliation(s)
- Xu-Fan Wang
- Department of Histology and Embryology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou 221004, China; (X.-F.W.); (Y.-F.D.); (Y.-Q.Z.); (Z.-J.L.); (T.-H.L.); (L.Z.)
- The Second Clinical Medical College, Xuzhou Medical University, Xuzhou 221004, China;
- National Demonstration Center for Experimental Basic Medical Science Education, Xuzhou Medical University, Xuzhou 221004, China
| | - Yi-Fan Duan
- Department of Histology and Embryology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou 221004, China; (X.-F.W.); (Y.-F.D.); (Y.-Q.Z.); (Z.-J.L.); (T.-H.L.); (L.Z.)
- The Second Clinical Medical College, Xuzhou Medical University, Xuzhou 221004, China;
| | - Yue-Qian Zhu
- Department of Histology and Embryology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou 221004, China; (X.-F.W.); (Y.-F.D.); (Y.-Q.Z.); (Z.-J.L.); (T.-H.L.); (L.Z.)
- The Second Clinical Medical College, Xuzhou Medical University, Xuzhou 221004, China;
- National Demonstration Center for Experimental Basic Medical Science Education, Xuzhou Medical University, Xuzhou 221004, China
| | - Zi-Jing Liu
- Department of Histology and Embryology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou 221004, China; (X.-F.W.); (Y.-F.D.); (Y.-Q.Z.); (Z.-J.L.); (T.-H.L.); (L.Z.)
- National Demonstration Center for Experimental Basic Medical Science Education, Xuzhou Medical University, Xuzhou 221004, China
| | - Yu-Chen Wu
- The Second Clinical Medical College, Xuzhou Medical University, Xuzhou 221004, China;
- National Demonstration Center for Experimental Basic Medical Science Education, Xuzhou Medical University, Xuzhou 221004, China
| | - Tian-Hao Liu
- Department of Histology and Embryology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou 221004, China; (X.-F.W.); (Y.-F.D.); (Y.-Q.Z.); (Z.-J.L.); (T.-H.L.); (L.Z.)
- The Second Clinical Medical College, Xuzhou Medical University, Xuzhou 221004, China;
| | - Ling Zhang
- Department of Histology and Embryology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou 221004, China; (X.-F.W.); (Y.-F.D.); (Y.-Q.Z.); (Z.-J.L.); (T.-H.L.); (L.Z.)
| | - Jian-Feng Wei
- Department of Histology and Embryology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou 221004, China; (X.-F.W.); (Y.-F.D.); (Y.-Q.Z.); (Z.-J.L.); (T.-H.L.); (L.Z.)
- Jiangsu Key Laboratory of Brain Disease Bioinformation, Research Center for Biochemistry and Molecular Biology, Xuzhou Medical University, Xuzhou 221004, China
| | - Guo-Chang Liu
- Department of Histology and Embryology, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou 221004, China; (X.-F.W.); (Y.-F.D.); (Y.-Q.Z.); (Z.-J.L.); (T.-H.L.); (L.Z.)
- National Demonstration Center for Experimental Basic Medical Science Education, Xuzhou Medical University, Xuzhou 221004, China
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5
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Cao Y, Wong RCH, Xue EY, Zhang H, Wang J, Ding Y, Zhang L, Chen F, Wang J, Ng DKP. Immobilising an acid-cleavable dimeric phthalocyanine on gold nanobipyramids for intracellular pH detection and photodynamic elimination of cancer cells. Analyst 2024; 149:3288-3292. [PMID: 38808583 DOI: 10.1039/d4an00420e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
An acetal-linked dimeric phthalocyanine has been synthesised and immobilised on the surface of gold nanobipyramids. The resulting nanocomposite serves as a highly sensitive probe for intracellular pH through its acid-responsive fluorescence and surface-enhanced Raman scattering signals. The phthalocyanine units released in the acidic intracellular environment can also effectively eliminate the cancer cells upon light irradiation, rendering this simple fabricated nanosystem a bimodal and bifunctional theranostic agent.
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Affiliation(s)
- Yue Cao
- Department of Forensic Medicine, Nanjing Medical University, Nanjing 211166, China
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
| | - Roy C H Wong
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
| | - Evelyn Y Xue
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
| | - Han Zhang
- Department of Physics, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Jie Wang
- Department of Forensic Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Yan Ding
- Department of Forensic Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Lei Zhang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Feng Chen
- Department of Forensic Medicine, Nanjing Medical University, Nanjing 211166, China
| | - Jianfang Wang
- Department of Physics, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Dennis K P Ng
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
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6
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Wu X, Duan N, Yang S. Research Progress on the Application of Multifunctional Amino Derivative Fluorescent Probes in Food, the Environment, and the Microenvironment. Crit Rev Anal Chem 2024:1-18. [PMID: 38693829 DOI: 10.1080/10408347.2024.2343848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
The amino group is regarded as a multifunctional recognition group in fluorescent probes. It is nucleophilic, a strong electron-donating group and is a polar group with active hydrogen. Based on these characteristics, amino-based fluorescent probes combined with various fluorescent precursors have been constructed, with excellent sensing performance and low cytotoxicity. These probes have significant application value in the detection of food, living cells and organisms. Here, the relevant studies on amino fluorescent probes from 2016 to 2024 are systematically reviewed and their molecular design principles, recognition mechanisms and applications are described. These studies included 14 on exogenous and endogenous formaldehyde detection, five that detected polarity changes in the external environment and organelles in vivo, four intracellular mitochondrial and lysosomal viscosity detections, seven physiological environment and intracellular pH detections, seven metal ion detections in biological and environmental systems and four rapid detections of the hypochlorite anion (ClO-) in a variety of physiological processes and cells. The application scope of amino fluorescent probes is constantly expanding at present but, research progress in multiple application fields has not been summarized. This article mainly reviews the latest progress in amino fluorescent probes in the fields of food, the environment and the microenvironment, as well as looking forward to the development prospects of these fluorescent probes. Improving the reactivity of amino recognition groups and visual detection may become hot issues in future research.
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Affiliation(s)
- Xiaoming Wu
- Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, PR China
| | - Ning Duan
- Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, PR China
| | - Shaoxiang Yang
- Beijing Key laboratory of Flavor Chemistry, Beijing Technology and Business University, Beijing, PR China
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7
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Liu H, Lv R, Song F, Yang Y, Zhang F, Xin L, Zhang P, Zhang Q, Ding C. A near-IR ratiometric fluorescent probe for the precise tracking of senescence: a multidimensional sensing assay of biomarkers in cell senescence pathways. Chem Sci 2024; 15:5681-5693. [PMID: 38638232 PMCID: PMC11023058 DOI: 10.1039/d4sc00595c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/12/2024] [Indexed: 04/20/2024] Open
Abstract
Senescence is a complex physiological process that can be induced by a range of factors, and cellular damage caused by reactive oxygen species (ROS) is one of the major triggers. In order to learn and solve age-related diseases, tracking strategies through biomarkers, including senescence-associated β-galactosidase (SA-β-gal), with high sensitivity and accuracy, have been considered as a promising solution. However, endogenous β-gal accumulation is not only associated with senescence but also with other physiological processes. Therefore, additional assays are needed to define cellular senescence further. In this work, a fancy fluorescent probe SA-HCy-1 for accurately monitoring senescence is developed, with SA-β-gal and HClO as targets under high lysosomal pH conditions (pH > 6.0) specifically, on account of the role β-gal commonly played as an ovarian cancer biomarker. Therefore, precise tracking of cellular senescence could be achieved in view of these three dimensions, with response in dual fluorescence channels providing a ratiometric sensing pattern. This elaborate strategy has been verified to be suitable for biological applications by skin photo-aging evaluation and cellular passage tracing, displaying a significantly improved sensitivity compared with the commercial X-gal kit measurement.
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Affiliation(s)
- Haihong Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Ruidian Lv
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Fuxiang Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Yaqun Yang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Fei Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Liantao Xin
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Peng Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Qian Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 China
| | - Caifeng Ding
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 China
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8
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Fu Q, Yang X, Wang M, Zhu K, Wang Y, Song J. Activatable Probes for Ratiometric Imaging of Endogenous Biomarkers In Vivo. ACS NANO 2024; 18:3916-3968. [PMID: 38258800 DOI: 10.1021/acsnano.3c10659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Dynamic variations in the concentration and abnormal distribution of endogenous biomarkers are strongly associated with multiple physiological and pathological states. Therefore, it is crucial to design imaging systems capable of real-time detection of dynamic changes in biomarkers for the accurate diagnosis and effective treatment of diseases. Recently, ratiometric imaging has emerged as a widely used technique for sensing and imaging of biomarkers due to its advantage of circumventing the limitations inherent to conventional intensity-dependent signal readout methods while also providing built-in self-calibration for signal correction. Here, the recent progress of ratiometric probes and their applications in sensing and imaging of biomarkers are outlined. Ratiometric probes are classified according to their imaging mechanisms, and ratiometric photoacoustic imaging, ratiometric optical imaging including photoluminescence imaging and self-luminescence imaging, ratiometric magnetic resonance imaging, and dual-modal ratiometric imaging are discussed. The applications of ratiometric probes in the sensing and imaging of biomarkers such as pH, reactive oxygen species (ROS), reactive nitrogen species (RNS), glutathione (GSH), gas molecules, enzymes, metal ions, and hypoxia are discussed in detail. Additionally, this Review presents an overview of challenges faced in this field along with future research directions.
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Affiliation(s)
- Qinrui Fu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong 266021, China
| | - Xiao Yang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong 266021, China
| | - Mengzhen Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong 266021, China
| | - Kang Zhu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong 266021, China
| | - Jibin Song
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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9
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Lu S, Zhang C, Wang J, Zhao L, Li G. Research progress in nano-drug delivery systems based on the characteristics of the liver cancer microenvironment. Biomed Pharmacother 2024; 170:116059. [PMID: 38154273 DOI: 10.1016/j.biopha.2023.116059] [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: 10/12/2023] [Revised: 12/08/2023] [Accepted: 12/21/2023] [Indexed: 12/30/2023] Open
Abstract
The liver cancer has microenvironmental features such as low pH, M2 tumor-associated macrophage enrichment, low oxygen, rich blood supply and susceptibility to hematotropic metastasis, high chemokine expression, enzyme overexpression, high redox level, and strong immunosuppression, which not only promotes the progression of the disease, but also seriously affects the clinical effectiveness of traditional therapeutic approaches. However, nanotechnology, due to its unique advantages of size effect and functionalized modifiability, can be utilized to develop various responsive nano-drug delivery system (NDDS) by using these characteristic signals of the liver cancer microenvironment as a source of stimulation, which in turn can realize the intelligent release of the drug under the specific microenvironment, and significantly increase the concentration of the drug at the target site. Therefore, researchers have designed a series of stimuli-responsive NDDS based on the characteristics of the liver cancer microenvironment, such as hypoxia, weak acidity, and abnormal expression of proteases, and they have been widely investigated for improving anti-tumor therapeutic efficacy and reducing the related side effects. This paper provides a review of the current application and progress of NDDS developed based on the response and regulation of the microenvironment in the treatment of liver cancer, compares the effects of the microenvironment and the NDDS, and provides a reference for building more advanced NDDS.
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Affiliation(s)
- Shijia Lu
- Shengjing Hospital of China Medical University, Department of Pharmacy, No. 36, Sanhao Street, Shenyang 110004, China
| | - Chenxiao Zhang
- Shengjing Hospital of China Medical University, Department of Pharmacy, No. 36, Sanhao Street, Shenyang 110004, China
| | - Jinglong Wang
- Shengjing Hospital of China Medical University, Department of Pharmacy, No. 36, Sanhao Street, Shenyang 110004, China
| | - Limei Zhao
- Shengjing Hospital of China Medical University, Department of Pharmacy, No. 36, Sanhao Street, Shenyang 110004, China
| | - Guofei Li
- Shengjing Hospital of China Medical University, Department of Pharmacy, No. 36, Sanhao Street, Shenyang 110004, China.
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10
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Ghosh S, Lai JY. Recent advances in the design of intracellular pH sensing nanoprobes based on organic and inorganic materials. ENVIRONMENTAL RESEARCH 2023; 237:117089. [PMID: 37683789 DOI: 10.1016/j.envres.2023.117089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/16/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023]
Abstract
In the biological system, the intracellular pH (pHi) plays an important role in regulating diverse physiological activities, including enzymatic action, ion transport, cell proliferation, metabolism, and programmed cell death. The monitoring of pH inside living cells is also crucial for studying cellular events such as phagocytosis, endocytosis, and receptor-ligand internalization. Furthermore, some organelles, viz., endosomes and lysosomes, have intracompartmental pH, which is critical for maintaining the stability of protein structure and function. The dysfunction and abnormal pH regulation can result in terminal diseases such as cancer, Alzheimer, and so forth. Therefore, the accuracy of intracellular pH measurement is always the top priority and demands cutting-edge research and analysis. Such techniques, such as Raman spectroscopy and fluorescence imaging, preferably use nanotechnology due to their remarkable advantages, such as a non-invasive approach and providing accuracy, repeatability, and reproducibility. In the past decades, there have been numerous attempts to design and construct non-invasive organic and inorganic materials-based nanoprobes for pHi sensing. For Raman-based techniques, metal nanostructures such as Au/Ag/Cu nanoparticles are utilized to enhance the signal intensity. As for the fluorescence-based studies, the organic-based small molecules, such as dyes, show higher sensitivity toward pH. However, they possess several drawbacks, including high photobleaching rate, and autofluorescence background signals. To this end, there are alternative nanomaterials proposed, including semiconductor quantum dots (QDs), carbon QDs, upconversion nanoparticles, and so forth. Moreover, the fluorescence technique allows for ratiometric measurement of pHi, which as a result, offers a reliable calibration curve. This timely review will critically examine the current progression in the existing nanoprobes. In addition, based on our knowledge and available research findings, we provide a brief future outlook that may advance the state-of-the-art methodologies for pHi sensing.
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Affiliation(s)
- Sandip Ghosh
- Department of Biomedical Engineering, Chang Gung University, Taoyuan, 33302, Taiwan
| | - Jui-Yang Lai
- Department of Biomedical Engineering, Chang Gung University, Taoyuan, 33302, Taiwan; Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou, Taoyuan, 33305, Taiwan; Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan; Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, 33303, Taiwan.
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11
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Abstract
Quinoidal π-conjugated systems are sought-after materials for semiconducting applications because of their rich optical and electronic characteristics. However, the analogous fluorescent compounds are extremely rare, with just two reports in the literature. Here, we present the design and development of a third series of quinoidal fluorophores [(2,5-diarylidene)-3,6-bis(hexyloxy)-2,5-dihydropyrazine (Q1-Q5)] that incorporates p-azaquinodimethane. The fluorophores are synthesized in a two-step synthetic approach employing Knoevenagel condensation of N,N-diacetyl-piperazine-2,5-dione with different aromatic aldehydes followed by O-alkylation in high yields. Q1-Q5 are strongly emissive, and by altering the aryl-substituents, the emission colors can be modulated from blue to orange. The compounds possess emission maxima (λem) at 475-555 nm in the solution state and 510-610 nm in the solid state, with fluorescence quantum yields of up to 60%. To the best of our knowledge, the reported systems are the first quinoidal dual-state emissive (solution- and solid-state) compounds. In trifluoroacetic acid, Q5 exhibits halochromic behavior, with a dramatic color change from yellow to blue. Furthermore, the preliminary fluorescent sensing studies demonstrated that Q5 could act as a selective turn-off fluorescence probe for electron-deficient picric acid (PA), with an emission quenching of >90% in the solution state. The thin-layer chromatography (TLC) strip sensor of Q5 was also designed to detect PA in water.
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Affiliation(s)
- Aswani Raj K
- Department of Chemistry, Indian Institute of Technology Dharwad, Karnataka, 580011, India
| | - Rajeswara Rao M
- Department of Chemistry, Indian Institute of Technology Dharwad, Karnataka, 580011, India
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12
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Rodriguez-Rios M, McHugh BJ, Liang Z, Megia-Fernandez A, Lilienkampf A, Dockrell D, Bradley M. A fluorogenic, peptide-based probe for the detection of Cathepsin D in macrophages. Commun Chem 2023; 6:237. [PMID: 37919467 PMCID: PMC10622513 DOI: 10.1038/s42004-023-01035-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 10/20/2023] [Indexed: 11/04/2023] Open
Abstract
Cathepsin D is a protease that is an effector in the immune response of macrophages, yet to date, only a limited number of probes have been developed for its detection. Herein, we report a water soluble, highly sensitive, pH insensitive fluorescent probe for the detection of Cathepsin D activity that provides a strong OFF/ON signal upon activation and with bright emission at 515 nm. The probe was synthesised using a combination of solid and solution-phase chemistries, with probe optimisation to increase its water solubility and activation kinetics by addition of a long PEG chain (5 kDa) at the C-terminus. A BODIPY fluorophore allowed detection of Cathepsin D across a wide pH range, important as the protease is active both at the low pH found in lysosomes and also in higher pH phagolysosomes, and in the cytosol. The probe was successfully used to detect Cathepsin D activity in macrophages challenged by exposure to bacteria.
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Affiliation(s)
- Maria Rodriguez-Rios
- School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK
| | - Brian J McHugh
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh BioQuarter, Edinburgh, EH16 4TJ, UK
| | - Zhengqi Liang
- School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK
| | - Alicia Megia-Fernandez
- School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK
- Organic Chemistry Department, Faculty of Sciences, University of Granada, Avda. Fuente Nueva S/N, Granada, 18071, Spain
| | - Annamaria Lilienkampf
- School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK
| | - David Dockrell
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh BioQuarter, Edinburgh, EH16 4TJ, UK
| | - Mark Bradley
- Precision Healthcare University Research Institute, Queen Mary University of London, Empire House, 67-75 New Road, London, E1 1HH, UK.
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13
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Dubey Y, Mahalingavelar P, Rajput D, Shewale DJ, Soppina V, Kanvah S. Fluorescent styryl pyridine- N-oxide probes for imaging lipid droplets. Org Biomol Chem 2023; 21:8393-8402. [PMID: 37819137 DOI: 10.1039/d3ob01365k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Lipid droplets (LDs) have emerged as major regulators of cellular metabolism, encompassing lipid storage, membrane synthesis, viral replication, and protein degradation. Exclusive studies have suggested a direct link between LDs and cancer, as a notable abundance of LDs is found in cancerous cells. Therefore, monitoring the location, distribution, and movements of LDs is of paramount importance for understanding their involvement in biological processes. To target LDs, we designed and synthesized fluorophores with a styryl scaffold bearing electron-donating amino groups and pyridine-N-oxide, a zwitterionic acceptor moiety. We explored their photophysical properties in various solvents and conducted systematic DFT calculations on the synthesized fluorescent molecules, comparing them with neutral pyridine and cationic pyridinium styryl dyes. The results demonstrate that diphenylaminostyryl pyridine-N-oxide (TNO) shows excellent imaging of LDs, in contrast to the behavior of cationic styrylpyridinium (TNC), which primarily localizes within the mitochondria. Notably, pyridine N-oxide offers several benefits: an increased dipole moment facilitating charge separation between donors and acceptors, substantial HOMO and LUMO stabilization, improved water solubility, favorable redox properties, and bathochromic-shifted absorption/emission spectra, showing promise as a fluorescent tool for probing the cellular-biological realm.
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Affiliation(s)
- Yogesh Dubey
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India.
| | | | - Deeksha Rajput
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India.
| | - Dipeshwari J Shewale
- Department of Biological Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India.
| | - Virupakshi Soppina
- Department of Biological Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India.
| | - Sriram Kanvah
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat-382055, India.
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14
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Dai M, Yang YJ, Sarkar S, Ahn KH. Strategies to convert organic fluorophores into red/near-infrared emitting analogues and their utilization in bioimaging probes. Chem Soc Rev 2023; 52:6344-6358. [PMID: 37608780 DOI: 10.1039/d3cs00475a] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Organic fluorophores aided by current microscopy imaging modalities are essential for studying biological systems. Recently, red/near-infrared emitting fluorophores have attracted great research efforts, as they enable bioimaging applications with reduced autofluorescence interference and light scattering, two significant obstacles for deep-tissue imaging, as well as reduced photodamage and photobleaching. Herein, we analyzed the current strategies to convert key organic fluorophores bearing xanthene, coumarin, and naphthalene cores into longer wavelength-emitting derivatives by focussing on their effectiveness and limitations. Together, we introduced typical examples of how such fluorophores can be used to develop molecular probes for biological analytes, along with key sensing features. Finally, we listed several critical issues to be considered in developing new fluorophores.
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Affiliation(s)
- Mingchong Dai
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 37673, South Korea.
- CEDAR, Knight Cancer Institute, School of Medicine, Oregon Health & Science University, Portland, Oregon, 97201, USA.
| | - Yun Jae Yang
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 37673, South Korea.
| | - Sourav Sarkar
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 37673, South Korea.
| | - Kyo Han Ahn
- Department of Chemistry, Pohang University of Science and Technology, Pohang, 37673, South Korea.
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15
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Joniak J, Stankovičová H, Budzák Š, Sýkora M, Gaplovská-Kyselá K, Filo J, Cigáň M. Rigidized 3-aminocoumarins as fluorescent probes for strongly acidic environments and rapid yeast vacuolar lumen staining: mechanism and application. Phys Chem Chem Phys 2023. [PMID: 37470103 DOI: 10.1039/d3cp01090b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Coumarins remain one of the most important groups of fluorescent bio-probes, thanks to their high quantum yields, moderate photostability, efficient cell permeation and low (cyto)toxicity. Herein, we introduce new 3-aminocoumarins as turn-on pH probes under strongly acidic conditions and for indicators capable of significantly improving yeast vacuolar lumen staining compared to the commercial CMAC derivatives. We present the details of the on-off switching mechanism revealed by the TD-DFT and ab initio calculations complemented by a Franck-Condon analysis of the probes' emission profiles.
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Affiliation(s)
- Jakub Joniak
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University, 842 15, Bratislava, Slovakia.
| | - Henrieta Stankovičová
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University, 842 15, Bratislava, Slovakia.
| | - Šimon Budzák
- Department of Chemistry, Faculty of Natural Sciences, Matej Bel University, 974 01, Banská Bystrica, Slovakia
| | - Milan Sýkora
- Laboratory for Advanced Materials, Faculty of Natural Sciences, Comenius University, 842 15, Bratislava, Slovakia
| | - Katarína Gaplovská-Kyselá
- Department of Genetics, Faculty of Natural Sciences, Comenius University, 842 15, Bratislava, Slovakia
| | - Juraj Filo
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University, 842 15, Bratislava, Slovakia.
| | - Marek Cigáň
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University, 842 15, Bratislava, Slovakia.
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16
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Dwivedi SK, Arachchige DL, Vohs T, Tang J, Usimaki K, Olowolagba AM, Fritz DR, Luck RL, Werner T, Liu H. Near-infrared rhodol dyes bearing salicylaldehyde moieties for ratiometric pH sensing in live cells during mitophagy and under hypoxia conditions. J Mater Chem B 2023; 11:2852-2861. [PMID: 36808460 PMCID: PMC10171916 DOI: 10.1039/d2tb02791g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
We describe a simple but efficient approach to make fluorescent probes A and B based on rhodol dyes incorporated with salicyaldehyde moiety for monitoring pH changes in mitochondria under oxidative stresses and hypoxia conditions, and for tracking mitophagy processes. Probes A and B possess pKa values (pKa ≈ 6.41 and 6.83 respectively) near physiological pH and exhibit decent mitochondria-targeted capabilities, low cytotoxicity, and useful ratiometric and reversible pH responses, which make the probes appropriate for monitoring pH fluctuations of mitochondria in living cells with built-in calibration feature for quantitative analysis. The probes have been effectively useful for the ratiometric determination of pH variations of mitochondria under the stimuli of carbonyl cyanide-4(trifluoromethoxy)phenylhydrazone (FCCP), hydrogen peroxide (H2O2), and N-acetyl cysteine (NAC), and during mitophagy triggered by cell nutrient deprivation, and under hypoxia conditions with cobalt chloride (CoCl2) treatment in living cells. In addition, probe A was efficient in visualizing pH changes in the larvae of fruit flies.
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Affiliation(s)
- Sushil K Dwivedi
- Department of Chemistry, and Research Health Institute, Michigan Technological University, Houghton, MI 49931, USA.
| | - Dilka Liyana Arachchige
- Department of Chemistry, and Research Health Institute, Michigan Technological University, Houghton, MI 49931, USA.
| | - Tara Vohs
- Department of Chemistry, and Research Health Institute, Michigan Technological University, Houghton, MI 49931, USA.
| | - Jiani Tang
- High School, Houghton Portage Township Schools, Houghton, MI 49931, USA
| | - Kyle Usimaki
- Department of Chemistry, and Research Health Institute, Michigan Technological University, Houghton, MI 49931, USA.
| | - Adenike Mary Olowolagba
- Department of Chemistry, and Research Health Institute, Michigan Technological University, Houghton, MI 49931, USA.
| | - Delaney Raine Fritz
- Department of Biological Sciences, Michigan Technological University, Houghton, MI 49931, USA.
| | - Rudy L Luck
- Department of Chemistry, and Research Health Institute, Michigan Technological University, Houghton, MI 49931, USA.
| | - Thomas Werner
- Department of Biological Sciences, Michigan Technological University, Houghton, MI 49931, USA.
| | - Haiying Liu
- Department of Chemistry, and Research Health Institute, Michigan Technological University, Houghton, MI 49931, USA.
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17
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Li Y, Luo S, Gui Y, Wang X, Tian Z, Yu H. Difunctional Hydrogel Optical Fiber Fluorescence Sensor for Continuous and Simultaneous Monitoring of Glucose and pH. BIOSENSORS 2023; 13:bios13020287. [PMID: 36832053 PMCID: PMC9954304 DOI: 10.3390/bios13020287] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 06/12/2023]
Abstract
It is significant for people with diabetes to know their body's real-time glucose level, which can guide the diagnosis and treatment. Therefore, it is necessary to research continuous glucose monitoring (CGM) as it gives us real-time information about our health condition and its dynamic changes. Here, we report a novel hydrogel optical fiber fluorescence sensor segmentally functionalized with fluorescein derivative and CdTe QDs/3-APBA, which can continuously monitor pH and glucose simultaneously. In the glucose detection section, the complexation of PBA and glucose will expand the local hydrogel and decrease the fluorescence of the quantum dots. The fluorescence can be transmitted to the detector by the hydrogel optical fiber in real time. As the complexation reaction and the swelling-deswelling of the hydrogel are all reversible, the dynamic change of glucose concentration can be monitored. For pH detection, the fluorescein attached to another segment of the hydrogel exhibits different protolytic forms when pH changes and the fluorescence changes correspondingly. The significance of pH detection is compensation for pH errors in glucose detection because the reaction between PBA and glucose is sensitive to pH. The emission peaks of the two detection units are 517 nm and 594 nm, respectively, so there is no signal interference between them. The sensor can continuously monitor glucose in 0-20 mM and pH in 5.4-7.8. The advantages of this sensor are multi-parameter simultaneous detection, transmission-detection integration, real-time dynamic detection, and good biocompatibility.
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18
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Understanding pH Tailored Photophysical Properties of a $${\varvec{\pi}}$$-Conjugated Aryl Hydrazone-Derived Dye for Sensing Application. J CHEM SCI 2023. [DOI: 10.1007/s12039-022-02129-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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19
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Chen W, Liu H, Song F, Xin L, Zhang Q, Zhang P, Ding C. pH-Switched Near-Infrared Fluorescent Strategy for Ratiometric Detection of ONOO - in Lysosomes and Precise Imaging of Oxidative Stress in Rheumatoid Arthritis. Anal Chem 2023; 95:1301-1308. [PMID: 36576392 DOI: 10.1021/acs.analchem.2c04175] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Rheumatoid arthritis (RA) is well-known as a kind of autoimmune disease, which brings unbearable pain to the patients by multiple organ complications besides arthritis. To date, RA can be hardly cured, but early diagnosis and standard treatment can relieve symptoms and pain. Therefore, an effective tool to assist the early diagnosis of RA deserves considerable attention. On account of the overexpressed ONOO- during the early stage of RA, a near-infrared (NIR) receptor, Lyso-Cy, is proposed in this work by linker chemistry to expand the conjugated rhodamine framework by cyanine groups. Contributed by the pH-sensitive spiral ring in rhodamine, receptor Lyso-Cy has been found to be workable in lysosomes specifically, which was confirmed by the pH-dependent spectra with a narrow responding region and a well-calculated pKa value of 5.81. We presented an excellent ratiometric sensing protocol for ONOO- in an acidic environment, which was also available for targeting ONOO- in lysosomes selectively. This innovative dual-targeting responsive design is expected to be promising for assisting RA diagnosis at an early stage with respect to the joint inflammatory model established in this work at the organism level.
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Affiliation(s)
- Wenjuan Chen
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
| | - Haihong Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
| | - Fuxiang Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
| | - Liantao Xin
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
| | - Qian Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
| | - Peng Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
| | - Caifeng Ding
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
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20
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Juvekar V, Lee HW, Lee DJ, Kim HM. Two-photon fluorescent probes for quantitative bio-imaging analysis in live tissues. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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A pyrene-derived ratiometric fluorescent probe for pH monitoring in cells and zebrafish based on monomer-excimer emission. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Liu C, Yan H, Wu J, Wang Z, He S, Zhao L, Zeng X. Lysosomes-targeting near-infrared fluorescent probe for the detection of pH in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 278:121368. [PMID: 35569197 DOI: 10.1016/j.saa.2022.121368] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
A new near-infrared fluorescent probe Qcy-OH with a turn-on mechanism based on a acceptor-donor-acceptor (ADA) π-electron system that can undergo an internal charge transfer to form new fluorochromes was developed for monitoring pH fluctuations in biological systems. With the pH value increases, Qcy-OH exhibited a strong pH-sensitive response from 1.1 to 9.0 (pKa = 4.41) and a good linear response from pH 3.0 to 5.5 in aqueous solution and in living cells. In addition, based on the phenolic and ketonic structure interconversions of the fluorescent backbone, Qcy-OH showed rapidly and reversibly response to pH with high selectivity. Because the introduce of two benzothiazolium units in the backbone of the probe as the electron-withdrawing group to enhance the selectivity for intracellular lysosomes, the probe had been applied successfully for tracking lysosomal pH changes and the fluorescence changes showed a good linear enhancement from pH 3.0 to 7.4 in living cells. We believe that this sulfur-driving lysosomes-targeting ability of the probe affords a guarantee for achieving long-term monitoring of lysosomal pH biology by the elimination of harmful protonating effects of the probe.
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Affiliation(s)
- Chang Liu
- Tianjin Key Laboratory for Photoelectric Materials and Devices, and Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Huimin Yan
- Tianjin Key Laboratory for Photoelectric Materials and Devices, and Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Jianhong Wu
- Tianjin Key Laboratory for Photoelectric Materials and Devices, and Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Zhiming Wang
- Tianjin Key Laboratory for Photoelectric Materials and Devices, and Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Song He
- Tianjin Key Laboratory for Photoelectric Materials and Devices, and Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Liancheng Zhao
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xianshun Zeng
- Tianjin Key Laboratory for Photoelectric Materials and Devices, and Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China; School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
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23
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Design of NIR-II high performance organic small molecule fluorescent probes and summary of their biomedical applications. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214609] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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24
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Real-time visualization of lysosomal pH fluctuations in living cells with a ratiometric fluorescent probe. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Wang J, Huo F, Zhang Y, Yin C. Spiropyran isomerization triggering ESIPT for visualization of pH fluctuations during oxidative stress in living cells. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Preparation and application of pH-responsive drug delivery systems. J Control Release 2022; 348:206-238. [PMID: 35660634 DOI: 10.1016/j.jconrel.2022.05.056] [Citation(s) in RCA: 85] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/29/2022] [Accepted: 05/30/2022] [Indexed: 02/08/2023]
Abstract
Microenvironment-responsive drug delivery systems (DDSs) can achieve targeted drug delivery, reduce drug side effects and improve drug efficacies. Among them, pH-responsive DDSs have gained popularity since the pH in the diseased tissues such as cancer, bacterial infection and inflammation differs from a physiological pH of 7.4 and this difference could be harnessed for DDSs to release encapsulated drugs specifically to these diseased tissues. A variety of synthetic approaches have been developed to prepare pH-sensitive DDSs, including introduction of a variety of pH-sensitive chemical bonds or protonated/deprotonated chemical groups. A myriad of nano DDSs have been explored to be pH-responsive, including liposomes, micelles, hydrogels, dendritic macromolecules and organic-inorganic hybrid nanoparticles, and micron level microspheres. The prodrugs from drug-loaded pH-sensitive nano DDSs have been applied in research on anticancer therapy and diagnosis of cancer, inflammation, antibacterial infection, and neurological diseases. We have systematically summarized synthesis strategies of pH-stimulating DDSs, illustrated commonly used and recently developed nanocarriers for these DDSs and covered their potential in different biomedical applications, which may spark new ideas for the development and application of pH-sensitive nano DDSs.
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Xu K, Zhang C, Li M, Gong S, Zhang Y, Wang X, Wang Z, Wang S. A myrtenal-based colorimetric and fluorescent probe for reversibly monitoring alkaline pH and bioimaging in living cells and zebrafish. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yin W, Wang H, Deng B, Ma F, Zhang J, Zhou M, Wang H, Lu Y. A pyrylium salt-based fluorescent probe for the highly sensitive detection of methylamine vapour. Analyst 2022; 147:3451-3455. [DOI: 10.1039/d2an00911k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The MTPY exhibits an obvious fluorescence response from yellow to cyan when reacted with CH3NH2 with a low detection limit (2.6 ppt, 8.4 × 10−8 M). The sensing mechanism was traced by mass spectrometry.
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Affiliation(s)
- Wenzhu Yin
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Hongjin Wang
- College of Chemistry and Environmental Science, YiLi Normal University, Yining 835000, P.R. China
| | - Bihua Deng
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Fang Ma
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Jinqiu Zhang
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Mingxu Zhou
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Haiyang Wang
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
| | - Yu Lu
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, P. R. China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious and Zoonoses, Yangzhou, 225009, P. R. China
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Chang X, Zhao G, Liu C, Wang X, Abdulkhaleq AMA, Zhang J, Zhou X. One-step microwave synthesis of red-emissive carbon dots for cell imaging in extreme acidity and light emitting diodes. RSC Adv 2022; 12:28021-28033. [PMID: 36320228 PMCID: PMC9524442 DOI: 10.1039/d2ra04026c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/26/2022] [Indexed: 11/21/2022] Open
Abstract
Red emissive carbon dots (R-CDs) have received great attention in biological fields due to their deep tissue penetrability, great bioimaging capability, low interference from auto-fluorescence, and potential for optoelectronic applications. Herein, excitation-independent, highly acid-sensitive R-CDs were successfully obtained via one-step microwave treatment of o-phenylenediamine (o-PD) and phosphoric acid and carefully purified by column chromatography. The relationship between the fluorescence emission and surface groups of the R-CDs was studied in detail using XPS, NMR, and fluorescence spectroscopy, and the different mechanisms of action of the R-CDs and acid in H2O and ethanol were determined. The excellent anti-interference ability and biocompatibility of the R-CDs were confirmed, and the probes were successfully used for imaging A549 and Escherichia coli (E. coli) cells in extreme acidity. Finally, based on their relatively high quantum yield and long wavelength emission, the application potential of the R-CDs in the fabrication of red light-emitting diodes (LEDs) was investigated. Highly acid-sensitive R-CDs were obtained via a microwave method. The relationship between the FL emission and the surface groups of the R-CDs was studied in detail. The R-CDs were used for cell imaging in extreme acidity and fabrication of red LEDs.![]()
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Affiliation(s)
- Xiaojie Chang
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | - Guizhi Zhao
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | - Chang Liu
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | - Xueshi Wang
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | | | - Jie Zhang
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
| | - Xibin Zhou
- College of Pharmacy, Jinzhou Medical University, Jinzhou, Liaoning, 121001, P. R. China
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Fu M, Yang M, Xu X. Upconversion fluorescent nanoprobe based on 4-NP reversible structure for a wide range of pH determination. NEW J CHEM 2022. [DOI: 10.1039/d2nj01803a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Accurate detection of pH value has received more and more attention in various fields. However, most reported probes show pH values in the acidic or alkaline range and work within...
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Solomatina AI, Kozina DO, Porsev VV, Tunik SP. pH-Responsive N^C-Cyclometalated Iridium(III) Complexes: Synthesis, Photophysical Properties, Computational Results, and Bioimaging Application. Molecules 2021; 27:232. [PMID: 35011464 PMCID: PMC8747057 DOI: 10.3390/molecules27010232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 12/26/2021] [Accepted: 12/27/2021] [Indexed: 12/13/2022] Open
Abstract
Herein we report four [Ir(N^C)2(L^L)]n+, n = 0,1 complexes (1-4) containing cyclometallated N^C ligand (N^CH = 1-phenyl-2-(4-(pyridin-2-yl)phenyl)-1H-phenanthro[9,10-d]imidazole) and various bidentate L^L ligands (picolinic acid (1), 2,2'-bipyridine (2), [2,2'-bipyridine]-4,4'-dicarboxylic acid (3), and sodium 4,4',4″,4‴-(1,2-phenylenebis(phosphanetriyl))tetrabenzenesulfonate (4). The N^CH ligand precursor and iridium complexes 1-4 were synthesized in good yield and characterized using chemical analysis, ESI mass spectrometry, and NMR spectroscopy. The solid-state structure of 2 was also determined by XRD analysis. The complexes display moderate to strong phosphorescence in the 550-670 nm range with the quantum yields up to 30% and lifetimes of the excited state up to 60 µs in deoxygenated solution. Emission properties of 1-4 and N^CH are strongly pH-dependent to give considerable variations in excitation and emission profiles accompanied by changes in emission efficiency and dynamics of the excited state. Density functional theory (DFT) and time-dependent density functional theory (TD DFT) calculations made it possible to assign the nature of emissive excited states in both deprotonated and protonated forms of these molecules. The complexes 3 and 4 internalize into living CHO-K1 cells, localize in cytoplasmic vesicles, primarily in lysosomes and acidified endosomes, and demonstrate relatively low toxicity, showing more than 80% cells viability up to the concentration of 10 µM after 24 h incubation. Phosphorescence lifetime imaging microscopy (PLIM) experiments in these cells display lifetime distribution, the conversion of which into pH values using calibration curves gives the magnitudes of this parameter compatible with the physiologically relevant interval of the cell compartments pH.
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Affiliation(s)
- Anastasia I. Solomatina
- Institute of Chemistry, St. Petersburg State University, Universitetskii Av., 26, 198504 St. Petersburg, Russia;
| | | | - Vitaly V. Porsev
- Institute of Chemistry, St. Petersburg State University, Universitetskii Av., 26, 198504 St. Petersburg, Russia;
| | - Sergey P. Tunik
- Institute of Chemistry, St. Petersburg State University, Universitetskii Av., 26, 198504 St. Petersburg, Russia;
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