1
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Kaya M. Characterization of TEMPO-Oxidized Cellulose Nanofiber From Biowaste and Its Influence on Molecular Behavior of Fluorescent Rhodamine B Dye in Aqueous Suspensions. J Fluoresc 2024:10.1007/s10895-024-03824-4. [PMID: 38949753 DOI: 10.1007/s10895-024-03824-4] [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: 04/15/2024] [Accepted: 06/24/2024] [Indexed: 07/02/2024]
Abstract
Cellulose nanofiber (CNFs) obtained through TEMPO oxidation was structurally characterized using FT-IR (Fourier Transformed Infrared) and SEM (Scanning Electron Microscopy) spectroscopy. The molecular aggregation and spectroscopic properties of Rhodamine B (Rh-B) in CNFs suspension were investigated using molecular absorption and steady-state fluorescence spectroscopy techniques. The interaction between CNFs particles in the aqueous suspension and the cationic dye compound was examined in comparison to its behavior in deionized water. This interaction led to significant changes in the spectral features of Rh-B, resulting in an increase in the presence of H-dimer and H-aggregate in CNFs suspension. The H-type aggregates of Rh-B in CNFs suspensions were defined by the observation of a blue-shifted absorption band compared to that of the monomer. Even at diluted dye concentrations, the formation of Rh-B's H-aggregate was observed in CNFs suspension. The pronounced aggregation in suspensions originated from the strong interaction between negatively charged carboxylate ions and the dye. The aggregation behavior was discussed with deconvoluted absorption spectra. Fluorescence spectroscopy studies revealed a significant reduction in the fluorescence intensity of the dye in CNFs suspension due to H-aggregates. Furthermore, the presence of H-aggregates in the suspensions caused a decrease in the quantum yield of Rh-B compared to that in deionized water.
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Affiliation(s)
- Mehmet Kaya
- Faculty of Science, Department of Chemistry, Ataturk University, Erzurum, 25240, Turkey.
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2
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Feng W, Qian Y. Water-soluble red fluorescent protein dimers for hypoxic two-photon photodynamic therapy. J Mater Chem B 2024; 12:2413-2424. [PMID: 38354026 DOI: 10.1039/d3tb02621c] [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: 02/29/2024]
Abstract
In this study, two water-soluble red fluorescent protein (RFP) dimers, FP2R' and FP2R'', were synthesized by linking two phenothiazine-based RFP chromophore analogues through alkyl chains or alkoxy chains for hypoxic two-photon photodynamic therapy. RFP dimers are heavy-atom-free two-photon photosensitizers in which the intersystem crossing process is boosted by S and N heteroatoms. In terms of the aqueous solubility, the saturation concentration of FP2R'' was 3.5 mM, the emission wavelength was 677 nm, the singlet oxygen yield was 18%, and the two-photon absorption coefficient (β) was 2.1 × 10-11 cm W-1. Further, the RFP dimer FP2R'' showed excellent biocompatibility, negligible dark toxicity, and could produce 1O2 and O2˙- simultaneously. Under 460 nm illumination, the photosensitizer FP2R'' showed high phototoxicity with an IC50 value of 4.08 μM in an hypoxia environment, indicating that the photosensitizer FP2R'' has an excellent anti-hypoxia ability. In addition, the photosensitizer FP2R'' demonstrated a precise localization ability to lysosomes and its Pearson's colocalization coefficient was 0.94, which could guide the aggregation of photosensitizers in the lysosomes of tumor cells to effectively improve its photodynamic therapy (PDT) effect. In particular, when exposed to 800 nm two-photon excitation, FP2R'' effectively produced 1O2 and O2˙- in zebrafish and exhibited a bright two-photon fluorescence imaging capability. At the same time, the efficacy of two-photon photodynamic therapy mediated by the photosensitizer FP2R'' was verified in the tumor zebrafish model, and the growth of tumor cells in zebrafish was significantly inhibited under a two-photon laser irradiation. The water-soluble two-photon photosensitizer FP2R'' that was reasonably constructed in this study can be used as a high-efficiency hypoxic two-photon photosensitizer to inhibit deep tumor tissues.
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Affiliation(s)
- Wan Feng
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Ying Qian
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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3
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Lang W, Chen LZ, Chen Y, Cao QY. A GSH-activated AIE-based polymer photosensitizer for killing cancer cells. Talanta 2023; 258:124473. [PMID: 36989616 DOI: 10.1016/j.talanta.2023.124473] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 03/16/2023] [Accepted: 03/18/2023] [Indexed: 03/29/2023]
Abstract
Developing efficient photosensitizers which are sensitive to therapeutic tumor signals, but non-toxic to normal cells has always been a tremendous challenge in photodynamic therapy (PDT) process. Herein, a novel copolymer P1 was developed by ring-opening metathesis polymerization (ROMP) with disulfide bond linked ferrocene-norbornene dyad NB-SS-PyFc and the aggregation-induced emission (AIE) fluorephore anchored norbornene NB-TPE, and its nanoparticles (NPs) were obtained by using the amphiphilic Pluronic F-127 as the surfactant via a nanoprecipitation method. The P1 NPs show a weak emission and a low 1O2 generation for the quenching effect from the ferrocene moiety to the AIE group. However, the addition of GSH can recover the AIE fluorephore emission and 1O2 generation for cleavage the disulfide bond. Importantly, P1 NPs have been used for image-guided cancer cells apoptosis for the GSH activated 1O2 generation.
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4
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Zhang X, Zhang L, Bie H, Xu J, Yuan Y, Jia L. Intelligent visual detection of OTC enabled by a multicolor fluorescence nanoprobe: Europium complex functionalized carbon dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 299:122867. [PMID: 37216821 DOI: 10.1016/j.saa.2023.122867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/10/2023] [Accepted: 05/10/2023] [Indexed: 05/24/2023]
Abstract
It is of great significance to realize ultra-sensitive and visual detection of oxytetracycline (OTC) residues, especially for public health and environmental safety. In this study, a multicolor fluorescence sensing platform (CDs-Cit-Eu) for OTC detection was constructed by using rare earth europium complex functionalized carbon dots (CDs). The blue-emitting CDs (λem = 450 nm) prepared by one-step hydrothermal method using nannochloropsis were not only the scaffold of Eu3+ ion coordination, but also the recognition unit of OTC. After adding OTC to the multicolor fluorescent sensor, the emission intensity of CDs decreased slowly, and the emission intensity of Eu3+ ions (λem = 617 nm) enhanced significantly, accompanying by a significant color change of the nanoprobe from blue to red. The detection limit of the probe for OTC was calculated to be 3.5 nM, manifesting ultra-high sensitivity towards OTC detection. In addition, OTC detection in real samples (honey, lake water, tap water) was successfully achieved. Moreover, a semi-hydrophobic luminescent film SA/PVA/CDs-Cit-Eu was also prepared for OTC detection. With the help of smartphone color recognition APP, real-time intelligent detection of OTC was realized.
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Affiliation(s)
- Xia Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. 2001 Shiji Road Jiaozuo, Henan 454000, China
| | - Lina Zhang
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. 2001 Shiji Road Jiaozuo, Henan 454000, China.
| | - Hongyan Bie
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. 2001 Shiji Road Jiaozuo, Henan 454000, China
| | - Jun Xu
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. 2001 Shiji Road Jiaozuo, Henan 454000, China
| | - Yingqi Yuan
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. 2001 Shiji Road Jiaozuo, Henan 454000, China
| | - Lei Jia
- College of Chemistry and Chemical Engineering, Henan Polytechnic University, No. 2001 Shiji Road Jiaozuo, Henan 454000, China.
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5
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Zhao H, Xiong Y, Zang L, Lu J. Radical nucleophilic substitution/cyclization: A novel strategy for selective and ultrafast fluorescence imaging of cysteine levels in ferroptosis process. Talanta 2023; 253:123917. [PMID: 36099716 DOI: 10.1016/j.talanta.2022.123917] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/31/2022] [Accepted: 09/03/2022] [Indexed: 12/13/2022]
Abstract
Diphenylisoindolo[2,1-a]quinoline can be used to detect cysteine among homocysteine, glutathione, and other 19 natural amino acids. Unlike other reported probes, the response mechanism involves sulfhydryl radical nucleophilic substitution and cyclization, and thus the differences in ring-formation kinetics enable high selectivity. After treated with Cys, the response process was completed rapidly and the maximum fluorescence intensity (at 496 nm) was reached extremely fast (<1 s) when excited at 380 nm in MeCN-PBS buffer (10.0 mM, pH = 7.4, 3:7 (v/v)). The quantum yield after the reaction was increased almost 7 times to be 0.02 from 0.003. Fluorescence intensity displayed a good quantitative linear relationship in the range 1-10 μM Cys with a detection limit of 270 nM. Furthermore, the probe was demonstrated for real-time monitoring of intracellular cysteine levels within HepG2 cells in ferroptosis process.
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Affiliation(s)
- Hanqing Zhao
- Department School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Yanian Xiong
- Department School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Liu Zang
- Department School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Jianzhong Lu
- Department School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
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6
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Wen C, Guo X, Gao C, Zhu Z, Meng N, Shen XC, Liang H. NIR-II-responsive AuNRs@SiO 2-RB@MnO 2 nanotheranostic for multimodal imaging-guided CDT/PTT synergistic cancer therapy. J Mater Chem B 2022; 10:4274-4284. [PMID: 35583909 DOI: 10.1039/d1tb02807c] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Specific tumor-responsive capabilities and efficient synergistic therapeutic performance are the keys to effective tumor treatment. Herein, AuNRs@SiO2-RB@MnO2 was developed as a new type of tumor-responsive nanotheranostic for multimodal imaging and synergistic chemodynamic/photothermal therapy. In AuNRs@SiO2-RB@MnO2, the SiO2 layer wraps the AuNRs, providing light absorption in the second near-infrared (NIR-II) region. The SiO2 layer also adsorbs the MnO2 nanosheets, which have Fenton-like activity, resulting in a fluorescent sensing platform based on the fluorescence quenching properties of MnO2 for rhodamine B dye. The fluorescence can be recovered by the consumption of MnO2 by glutathione, which simultaneously produces Mn2+ in the tumor region. The recovery of fluorescence reflects the consumption of glutathione and the increase in Mn2+, which produces hydroxyl radicals via Fenton-like reaction in the tumor microenvironment to realize chemodynamic therapy. Meanwhile, the AuNRs are a good photothermal reagent that can effectively absorb NIR-II light and convert it into heat energy to kill tumor cells via photothermal therapy. The NIR-II absorption performance of the AuNRs provides good photoacoustic imaging and deep photothermal performance, which is favorable for efficient NIR-II photoacoustic imaging-guided photothermal therapy. As a result, the AuNRs@SiO2-RB@MnO2 nanotheranostic exhibits outstanding imaging and synergistic chemodynamic/photothermal therapeutic performance for tumor imaging and treatment.
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Affiliation(s)
- Changchun Wen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China.
| | - Xiaolu Guo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China.
| | - Cunji Gao
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China.
| | - Zhongkai Zhu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China.
| | - Nianqi Meng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China.
| | - Xing-Can Shen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China.
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, 541004, P. R. China.
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7
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Sun YH, Han HH, Huang JM, Li J, Zang Y, Wang CY. A long-wavelength fluorescent probe with a large Stokes shift for lysosome-targeted imaging of Cys and GSH. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:120055. [PMID: 34153552 DOI: 10.1016/j.saa.2021.120055] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/24/2021] [Accepted: 06/02/2021] [Indexed: 06/13/2023]
Abstract
Biothiols including cysteine (Cys) and glutathione (GSH) are biological signaling molecules responsible for cell detoxification, cell metabolism and neutralization of reactive oxygen species. Here, we synthesized a long-wavelength fluorescent probe, DCIMA, for lysosome-targeted imaging of Cys and GSH in living cells. DCIMA is consisted of a dicyanoisophorone core modified with an acrylate group for biothiol detection through the Michael addition reaction and a morpholine group as the lysosome-targeting agent. The presence of the electron-donating morpholine group also enhances the intramolecular charge transfer mechanism of the probe, thereby enabling its long-wavelength fluorescence emission (670 nm) and large Stokes shift (180 nm). In concentration range of 0-30 μM, the probe was determined to react quickly with both Cys and GSH with low detection limits (<5 min, 35.2 nM for GSH and 34.8 nM for Cys) and achieve the sensitive fluorescence imaging of the biothiols located in the lysosomes of living cells.
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Affiliation(s)
- Yi-Hang Sun
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, PR China
| | - Hai-Hao Han
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, PR China; National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai, Institute of Materia Medica, Chinese Academy of Sciences, 189 Guo Shoujing Rd., Shanghai 201203, PR China
| | - Jia-Min Huang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, PR China
| | - Jia Li
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai, Institute of Materia Medica, Chinese Academy of Sciences, 189 Guo Shoujing Rd., Shanghai 201203, PR China
| | - Yi Zang
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai, Institute of Materia Medica, Chinese Academy of Sciences, 189 Guo Shoujing Rd., Shanghai 201203, PR China.
| | - Cheng-Yun Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai 200237, PR China.
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8
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Shu Y, Sun L, Wang Y, Jin D, Xu Q, Hu X. Polymer surface ligand and silica coating induced highly stable perovskite nanocrystals with enhanced aqueous fluorescence for efficient Hg 2+ and glutathione detection. Analyst 2021; 146:6798-6807. [PMID: 34668893 DOI: 10.1039/d1an01485d] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The poor stability and aqueous-quenching of fluorescence of perovskite nanocrystals (NCs) hinder their application in bio-detection and bio-imaging. Herein, through the synergistic effects of polymer surface ligand and silica encapsulation, highly stable and enhanced aqueous fluorescent CsPbBr3-mPEG@SiO2 NCs were synthesized and used as a novel "on-off-on" fluorescent probe for highly sensitive and selective detection of mercury ions (Hg2+) and glutathione (GSH) in aqueous solutions. The effects of the methoxypolyethylene glycol amine (mPEG-NH2) ligand and silica encapsulation on the stability and aqueous fluorescence of the CsPbBr3 NCs were studied. It indicated that the aqueous fluorescence of perovskite NCs was increased by 2.59 times. The water stability was also greatly improved, with the NCs maintaining 73% of their original fluorescence after storage for 30 days in water. X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FT-IR) analyses further demonstrated that the NCs were successfully passivated by mPEG-NH2 and silica. The fluorescence of the CsPbBr3-mPEG@SiO2 nanocrystals was effectively quenched by Hg2+ which is attributed to the electron transfer process between NCs and Hg2+. Then, through the interaction between Hg2+ and GSH, the restoration of fluorescence for CsPbBr3-mPEG@SiO2 was realized. The "on-off-on" fluorescent probe can be used for the detection of Hg2+ and GSH with a low detection limit of 0.08 nM and 0.19 μM, respectively. It also shows a fast response time and high accuracy for practical sample detection. The simple and sensitive fluorescent probe of CsPbBr3-mPEG@SiO2 shows great potential in environmental and biological sensing.
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Affiliation(s)
- Yun Shu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
| | - Linyan Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
| | - Yan Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
| | - Dangqin Jin
- Department of Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou 225127, P.R. China
| | - Qin Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
| | - Xiaoya Hu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China.
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9
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A simple fluorescent probe for glutathione detection and its bioimaging application in living cells. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Shen B, Zhang X, Dai J, Ji Y, Huang H. Lysosome targeting metal-organic framework probe LysFP@ZIF-8 for highly sensitive quantification of carboxylesterase 1 and organophosphates in living cells. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124342. [PMID: 33257119 DOI: 10.1016/j.jhazmat.2020.124342] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/08/2020] [Accepted: 10/18/2020] [Indexed: 06/12/2023]
Abstract
Herein, a lysosomal targeting LysFP@ZIF-8 metal-organic framework (MOF) was fabricated using fluorescent protein chromophore-based probe (LysFP) for selectively detection of carboxylesterase 1 (CES1) in living cells. Unlike the regular small molecule fluorescent probes, LysFP@ZIF-8 showed wide range pH tolerabiligy, high selectivity and sensitivity to CES1 in bio-samples, and was successfully applied to achieve the visual monitoring of CES1 activity in living cells. Low detection limit and high fluorescence quantum yield was calculated as 79 ng/mL and 0.76 for LysFP@ZIF-8, respectively. Furthermore, LysFP@ZIF-8 can also serve as a fluorescence indicator of organophosphates pesticide exposure in the way of hydrolyzing the carboxylic acid ester group in LysFP. This type of probe can inspire the development of fluorescent tools for further explore many pathological processes.
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Affiliation(s)
- Baoxing Shen
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China
| | - Xing Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China
| | - Jianan Dai
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China
| | - Yuan Ji
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210023, China.
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11
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Dai J, Hou Y, Wu J, Zhong G, Gao R, Shen B, Huang H. Construction of a red emission fluorescent protein chromophore-based probe for detection of carboxylesterase 1 and carbamate pesticide in culture cells. Talanta 2021; 223:121744. [PMID: 33298268 DOI: 10.1016/j.talanta.2020.121744] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/27/2020] [Accepted: 10/04/2020] [Indexed: 10/23/2022]
Abstract
Designing fluorescent probe for detecting carboxylesterase 1 is remains challenging. Herein, a red emission human carboxylesterase 1 (CES1) probe (CAE-FP) was synthesized based on fluorescent protein chromophore. Probe CAE-FP can specific detect human CES1 with high selectively. The fluorescence quantum yield was calucated as 0.19. The carboxylic acid ester in CAE-FP could be easily hydrolyzed by CES1 under physiological conditions, and this process could induce the obvious fluorescence signal in red emission region. The detection limit of CES1 was calculated as 84.5 ng/mL. Due to the biological detoxification mechanism of carboxylesterase and the obvious inhibitory effect of pesticides on its activity, CAE-FP was applied to detect carbamate pesticide and have achieved good application results. Since fluorescent protein chromophore has excellent biocompatibility, probe CAE-FP with good cell membrane permeable and was successfully applied to monitor the real activities of CES1 in living cells. In summary, this is one of the few reported fluorescent probes that can specific detect the real-time activity of CES1 in biological samples. Besides, we first applied the fluorescent protein chromophore to construct the specific target enzyme probe. This work would contribute to further investigate CES1-associated physiological and pathological processe.
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Affiliation(s)
- Jianan Dai
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Yadan Hou
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Jichun Wu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Guoyan Zhong
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Rui Gao
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu, 210023, China
| | - Baoxing Shen
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu, 210023, China.
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, Jiangsu, 210023, China.
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12
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Zhi X, Qian Y. A novel red-emission phenothiazine fluorescent protein chromophore based on oxygen‒chlorine bond (O–Cl) formation for real-time detection of hypochlorous acid in cells. Talanta 2021; 222:121503. [DOI: 10.1016/j.talanta.2020.121503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/28/2020] [Accepted: 08/01/2020] [Indexed: 01/30/2023]
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13
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Xiang W, Zhang L, Zhi X, Qian Y. Synthesis, S Atom Promoted Photodynamic Therapy and Two- Photon Fluorescence Imaging of Phenothiazine Fluorescent Protein Chromophore Analogue. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202104040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Qiao M, Lin L, Xia K, Li J, Zhang X, Linhardt RJ. Recent advances in biotechnology for heparin and heparan sulfate analysis. Talanta 2020; 219:121270. [PMID: 32887160 PMCID: PMC7474733 DOI: 10.1016/j.talanta.2020.121270] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/29/2020] [Accepted: 05/30/2020] [Indexed: 01/07/2023]
Abstract
Heparan sulfate (HS) is a class of linear, sulfated, anionic polysaccharides, called glycosaminoglycans (GAGs), which present on the mammalian cell surfaces and extracellular matrix. HS GAGs display a wide range of critical biological functions, particularly in cell signaling. HS is composed of repeating units of 1 → 4 glucosidically linked uronic acid and glucosamine residues. Heparin, a pharmacologically important version of HS, having higher sulfation and a higher content of iduronic acid than HS, is a widely used clinical anticoagulant. However, due to their heterogeneity and complex structure, HS and heparin are very challenging to analyze, limiting biological studies and even resulting in safety concerns in their therapeutic application. Therefore, reliable methods of structural analysis of HS and heparin are critically needed. In addition to the structural analysis of heparin, its concentration in blood needs to be closely monitored to avoid complications such as thrombocytopenia or hemorrhage caused by heparin overdose. This review summarizes the progress in biotechnological approaches in the structural characterization of HS and heparin over the past decade and includes the development of the ultrasensitive approaches for detection and measurement in biological samples.
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Affiliation(s)
- Meng Qiao
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Wenyuan Road 1, Nanjing, 210023, China
| | - Lei Lin
- School of Environment, Nanjing Normal University, Wenyuan Road 1, Nanjing, 210023, China
| | - Ke Xia
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA
| | - Jun Li
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Xing Zhang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Wenyuan Road 1, Nanjing, 210023, China.
| | - Robert J Linhardt
- Department of Chemistry and Chemical Biology, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA; Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA.
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15
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Yuan ZH, Yang YS, Lv PC, Zhu HL. Recent Progress in Small-Molecule Fluorescent Probes for Detecting Mercury Ions. Crit Rev Anal Chem 2020; 52:250-274. [PMID: 32715731 DOI: 10.1080/10408347.2020.1797466] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Mercury is a highly toxic and non-essential element that is found in every corner of the globe. The small amount of mercury produced by various pathways eventually enters freshwater and marine ecosystems, circulating through the food chain (especially fish) and causing various environmental problems in aspects including plants, animals, and human. There are several traditional quantitative methods developed for mercury ions (II) analysis in water samples. However, due to the complexity of the detection process, high cost and strong technical expertise, it is difficult to detect mercury ions in real-time. Therefore, in recent years, a large number of researchers have developed small-molecule fluorescent probes for Hg ions detection. Fluorimetry has the advantages of convenient detection, short response time, high sensitivity and good selectivity. This review summarized the small-molecule fluorescent probes for mercuric ion detection developed in recent years according to the chemical structural classification, compared their performances and elaborated the mechanism. We hope that the review will help the researches for the designs of metal ions fluorescent probes and their applications with certain reference value.
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Affiliation(s)
- Zeng-Hui Yuan
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Yu-Shun Yang
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | - Peng-Cheng Lv
- The Joint Research Center of Guangzhou University and Keele University for Gene Interference and Application, School of Life Science, Guangzhou University, Guangzhou, China
| | - Hai-Liang Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
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Zhi X, Shen B, Qian Y. A novel carbazolyl GFP chromophore analogue: synthesis strategy and acidic pH-activatable lysosomal probe for tracing endogenous viscosity changes. NEW J CHEM 2020. [DOI: 10.1039/d0nj01477j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A novel, acidic pH-activatable carbazolyl GFP chromophore analogue was designed for tracing lysosomal viscosity changes.
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Affiliation(s)
- Xu Zhi
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
- China
| | - Baoxing Shen
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
- China
| | - Ying Qian
- School of Chemistry and Chemical Engineering
- Southeast University
- Nanjing
- China
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