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Yonenuma R, Mori H. RAFT-synthesis and self-assembly-induced emission of pendant diphenylalanine-tetraphenylethylene copolymers. SOFT MATTER 2023; 19:8403-8412. [PMID: 37877167 DOI: 10.1039/d3sm00988b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Manipulation of the properties of aggregation-induced emission luminogens (AIEgens) by combining self-assembling motifs has attracted significant interest as a promising approach to developing various advanced materials. In this study, pendant diphenylalanine-tetraphenylethylene (TPE) copolymers exhibiting the ability for self-assembly and AIE properties were synthesized via reversible addition-fragmentation chain-transfer (RAFT) copolymerization. The resulting anionic and non-ionic amphiphilic copolymers with a carbon-carbon main chain bearing diphenylalanine-TPE through-space interactions self-assembled into nanorods and nanofibers, showing blue emissions originating from the aggregation of TPE side chains in the assembled structures. Suitable tuning of the comonomer composition, monomer structure, and environmental conditions (e.g., solvent polarity) enables manipulation of the self-assembled structures, AIE properties, and aggregation-induced circular dichroism by achiral TPE units via through-space interactions with diphenylalanine moieties.
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Affiliation(s)
- Ryo Yonenuma
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, 4-3-16, Jonan, Yonezawa City, Yamagata Prefecture 992-8510, Japan.
| | - Hideharu Mori
- Department of Organic Materials Science, Graduate School of Organic Materials Science, Yamagata University, 4-3-16, Jonan, Yonezawa City, Yamagata Prefecture 992-8510, Japan.
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Song J, Liu Y, Wang C, Xu B, Zhao L. A Dipeptide-derived Dansyl Fluorescent Probe for the Detection of Cu 2+ in Aqueous Solutions. J Fluoresc 2023; 33:2515-2521. [PMID: 37204534 DOI: 10.1007/s10895-023-03274-4] [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: 03/31/2023] [Accepted: 05/15/2023] [Indexed: 05/20/2023]
Abstract
A novel dansyl-based fluorescent probe (DG) was designed via the introduction of a dipeptide, glycyl-L-glutamine. DG showed good selectivity and sensitivity towards Cu2+ in aqueous solutions in the pH span of ~ 6-12. The coordination of Cu2+ with the dipeptide moiety led to the fluorescent quenching of the dansyl fluorophore. The association constant value for Cu2+ was 0.78 × 104 M- 1 in a 1 to 1 stoichiometric ratio. The detection limit in HEPES buffer solution (10 mM, pH 7.4) was 1.52 µM. DG also showed strong anti-interference capability in the presence of other metal ions. It was worth noting that DG maintained the detection ability towards Cu2+ in real water samples and cell imaging, implying the potential application opportunities in complicated environments.
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Affiliation(s)
- Jian Song
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China
| | - Yu Liu
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China
| | - Ce Wang
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China
| | - Baocai Xu
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China
| | - Li Zhao
- School of Light Industry, Beijing Technology and Business University, Beijing, 100048, China.
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Beijing, 100048, China.
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Li Q, Niu Z, Nan X, Wang E. An AIE-Active probe for detection and bioimaging of pH values based on lactone hydrolysis reaction. J Fluoresc 2022; 32:1611-1617. [PMID: 35593957 DOI: 10.1007/s10895-022-02967-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 05/05/2022] [Indexed: 11/24/2022]
Abstract
Cellular pH homeostasis is essential for many physiological and pathological processes. pH monitoring is helpful for the diagnosis, treatment and prevention of disorders and diseases. Herein, we developed a ratiometric fluorescent pH probe (TCC) based on a coumarin derivative containing a highly active lactone ring. TCC exhibited a typical AIE effect and emitted blue fluorescence under weak acidic condition. When under weak basic condition, the active lactone moiety underwent a hydrolysis reaction to afford a water-soluble product, which gave red-shifted emission. The emission color change from blue through cyan and then to yellow within pH 6.5-9.0 which is approximate to the biological pH range. And the fluorescence color change along with pH value is reversible. Furthermore, TCC was successfully utilized in the detection of the intracellular pH change of live HeLa cells, which indicated that TCC had practical potential in biomedical research.
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Affiliation(s)
- Qiao Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan normal University, 571158, Haikou, China
| | - Zhigang Niu
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan normal University, 571158, Haikou, China
| | - Xuying Nan
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan normal University, 571158, Haikou, China
| | - Enju Wang
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province, College of Chemistry & Chemical Engineering, Hainan normal University, 571158, Haikou, China.
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Banik D, Manna SK, Maiti A, Mahapatra AK. Recent Advancements in Colorimetric and Fluorescent pH Chemosensors: From Design Principles to Applications. Crit Rev Anal Chem 2022; 53:1313-1373. [PMID: 35086371 DOI: 10.1080/10408347.2021.2023002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Due to the immense biological significance of pH in diverse living systems, the design, synthesis, and development of pH chemosensors for pH monitoring has been a very active research field in recent times. In this review, we summarize the designing strategies, sensing mechanisms, biological and environmental applications of fluorogenic and chromogenic pH chemosensors of the last three years (2018-2020). We categorized these pH probes into seven types based on their applications, including 1) Cancer cell discriminating pH probes; 2) Lysosome targetable pH probes; 3) Mitochondria targetable pH probes; 4) Golgi body targetable pH probes; 5) Endoplasmic reticulum targetable pH probes; 6) pH probes used in nonspecific cell imaging; and 7) pH probes without cell imaging. All these different categories exhibit diverse applications of pH probes in biological and environmental fields.
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Affiliation(s)
- Dipanjan Banik
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal, India
| | - Saikat Kumar Manna
- Department of Chemistry, Haldia Government College, Purba Medinipur, West Bengal, India
| | - Anwesha Maiti
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal, India
| | - Ajit Kumar Mahapatra
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal, India
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Liu Y, Jiang B, Zhao L, Zhao L, Wang Q, Wang C, Xu B. A dansyl-based fluorescent probe for sensing Cu 2+ in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:120009. [PMID: 34087769 DOI: 10.1016/j.saa.2021.120009] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/20/2021] [Accepted: 05/22/2021] [Indexed: 06/12/2023]
Abstract
A fluorescent probe based on a glycyl-L-tyrosine-modified dansyl derivative (D-GT) is designed and synthesized. D-GT demonstrated great detection performance toward Cu2+ in an aqueous solution. Fluorescence quenching occurred due to the coordination of Cu2+ with D-GT. The sensitive detection of D-GT to Cu2+ was applied in aqueous solution within a wide pH span (6-12). A 1:1 coordinate stoichiometric way and an association constant of 6.47 × 104 M-1 between D-GT and Cu2+ were determined. The measured detection limit for Cu2+ in HEPES buffer solution (10 mM, pH 7.4) was 0.69 μM. The probe displayed an appropriate sensitivity toward Cu2+ in real drinking water samples and living cells, which reveals the potential applications of D-GT in complicated environments.
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Affiliation(s)
- Yu Liu
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Bing Jiang
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Linlin Zhao
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Li Zhao
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China.
| | - Qiyu Wang
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China.
| | - Ce Wang
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
| | - Baocai Xu
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China
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Development of a Simple Dansyl-Based PH Fluorescent Probe in Acidic Medium and Its Application in Cell Imaging. J Fluoresc 2021; 32:227-233. [PMID: 34705194 DOI: 10.1007/s10895-021-02843-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 10/21/2021] [Indexed: 10/20/2022]
Abstract
A simple pH fluorescent probe based on dansyl derivative (Bu-Dns) was synthesized via one-step reaction between dansyl chloride and 4-bromobutan-1-amine hydrobromide. The obtained probe showed good selectivity and sensitivity toward H+ in acidic medium over two pH units (~4-2). At pH > 4, Bu-Dns solution emitted yellow fluorescent light, which became gradually weaker with decreasing pH value. At pH below 2, complete fluorescence quenching occurred. The pH response of Bu-Dns was ascribed to the protonation of dimethylamine group. The lack of influence of metal ion on pH response increases the prevalence of Bu-Dns in the potential detection of pH variation in acidic aqueous media. More importantly, it can sense the intracellular pH change in acidic range.
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Jiang B, Liu Y, Zhao L, Zhao L, Wang C, Liu C, Xu B. Construction of a pH-sensitive self-assembly in aqueous solutions based on a dansyl-modified β-cyclodextrin. SOFT MATTER 2021; 17:7516-7523. [PMID: 34318864 DOI: 10.1039/d1sm00751c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Here we present a pH-responsive self-assembly based on a β-cyclodextrin (β-CD) derivative bearing a dansyl terminus (βCD-C6-Dns). Vesicular structures were formed over the entire studied pH range (8.5-0.7); however, the molecular configuration and packing within the vesicles were different at different pH values. Intramolecular host-guest complexation occurred mainly between the dansyl group and β-CD at pH values where the dansyl group was not protonated. The alkyl chain also acted as a competitive guest to form host-guest inclusions as confirmed by 2D 1H NMR measurements. The pH-responsive βCD-C6-Dns vesicles have potential application prospects in pH-controlled drug release based on the low cytotoxicity of βCD-C6-Dns.
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Affiliation(s)
- Bing Jiang
- School of Light Industry, Beijing Technology and Business University, Beijing 100048, China.
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Abstract
Two derivatives of dansyl (1-dimethylamino-5-naphthalenesulfonyl) in which the amino group is constrained in a ring are prepared as neopentyl esters. Their photophysical behavior is compared with that of the dansyl ester. The solvatochromism and quantum yields are similar for all three. Since the two constrained derivatives cannot twist about the amino group, they must emit from a planar intramolecular charge-transfer excited state. The similar photophysical behavior suggests that dansyl also emits from a PICT excited state instead of a twisted intramolecular charge transfer state.
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Affiliation(s)
- Kristen Lum
- Department of Chemistry, College of William and Mary, Williamsburg, Virginia 23185, United States
| | - Stephanie M Zielinski
- Department of Chemistry, College of William and Mary, Williamsburg, Virginia 23185, United States
| | - Christopher J Abelt
- Department of Chemistry, College of William and Mary, Williamsburg, Virginia 23185, United States
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Piperazine-tuned benzimidazole-based multifunctional fluorescent sensor for the detection of mercury (II) ion and pH. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.108096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhou H, Feng R, Liang Q, Su X, Deng L, Yang L, Ma LJ. A sensitive pH fluorescent probe based on triethylenetetramine bearing double dansyl groups in aqueous solutions and its application in cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 229:117881. [PMID: 31822453 DOI: 10.1016/j.saa.2019.117881] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/25/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
pH fluorescent probes possess many advantages, including intracellular detection, rapid response time and nondestructive testing. In this paper, a highly selective and sensitive fluorescent pH probe based on triethylenetetramine bearing double dansyl groups (1) was synthesized. This probe offers fluorescent measurement of pH value in the range of 5.81-7.21 in aqueous solution, with an 8.64-fold enhancement of fluorescent emission intensity over the unmodified probe. Probe 1 shows a fluorescent color change from a pale yellow to bright green when the pH is increased from 5.81 to 7.21. In addition, probe 1 shows good potential as a fluorescent visualizing sensor for pH values in living GS cells of epinepheluscoioides. The mechanism of the fluorescent response of probe 1 to solution pHs was further clarified by NMR, fluorescent spectra, and UV-vis absorption spectra. The results indicate that the fluorescent emission will shift with an increase in solution pHs, due to increasing deprotonation of the nitrogen atom on the sulfonamides. Deprotonation of the sulfonamide group will inhibits the intramolecular charge transfer process between the imino group and the naphthalene ring, resulting in the recognition phenomenon of blue shift and enhancement of fluorescent emission intensity.
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Affiliation(s)
- Hongqi Zhou
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China; Department of Chemistry, Southern University of Science and Technology, 518055 Shenzhen, PR China
| | - Ruihong Feng
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Qingjian Liang
- College of Life Science, South China Normal University, Guangzhou 510631, PR China
| | - Xiaoping Su
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Lefang Deng
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Liting Yang
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Li-Jun Ma
- School of Chemistry, South China Normal University, Guangzhou 510006, PR China; School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou 510006, PR China; Key Laboratory of Theoretical Chemistry of Environment Ministry of Education, South China Normal University, Guangzhou 510631, PR China.
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