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Yang X, Huang Y, Yang S, Tang M, Liu J, Shen J, Fa H, Huo D, Hou C, Yang M. A label-free fluorescent sensor for rapid and sensitive detection of ctDNA based on fluorescent PDA nanoparticles. Analyst 2023; 148:4885-4896. [PMID: 37650747 DOI: 10.1039/d3an01169k] [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: 09/01/2023]
Abstract
Technological advances in the detection of circulating tumor DNA (ctDNA) have made new options available for diagnosis, classification, biological studies, and treatment selection. However, effective and practical methods for analyzing this emerging class of biomarkers are still lacking. In this work, a fluorescent biosensor was designed for the label-free detection of ctDNA (EGFR 19 del for non-small cell lung cancer, NSCLC). The biosensor was based on the fact that MnO2 nanosheets (MnO2 NSs) have stronger affinity towards single-stranded DNA (ssDNA), as compared with double-stranded DNA (dsDNA). As a high-performance nanoenzyme, MnO2 NSs could oxidize dopamine (DA) into fluorescent polydopamine nanoparticles (FL-PDA NPs), which could be used as a fluorescence signal. The probe ssDNA could be adsorbed on the surface of MnO2 NSs through π-π stacking, and the active site would be masked, causing a lower fluorescence. After the targets were recognized by probe ssDNA to form dsDNA, its affinity for MnO2 NSs decreased and the active site recovered, causing a restored fluorescence. It was verified that Mn ions, •OH radicals and electron transfer were the important factors in the catalytic oxidation of DA. Under the optimal experimental conditions, this biosensor exhibited a detection limit of 380 pM and a linear range of 25-125 nM, providing reliable readout in a short time (45 min). This sensor exhibited outstanding specificity, stability and reproducibility. In addition, this sensor was applied to the detection of ctDNA in serum samples and cell lysates. It is demonstrated that FL-PDA NPs can be used as a fluorescence signal for easy, rapid and label-free detection of ctDNA without any other amplification strategies, and the proposed strategy has great potential for biomarker detection in the field of liquid biopsy.
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Affiliation(s)
- Xiao Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, PR China.
| | - Yang Huang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, PR China.
| | - Siyi Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, PR China.
| | - Miao Tang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, PR China.
| | - Juan Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, PR China.
| | - Jinhui Shen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, PR China.
| | - Huanbao Fa
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, PR China
| | - Danqun Huo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, PR China.
- College of Bioengineering, Chongqing University, Chongqing 400044, PR China
| | - Changjun Hou
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, PR China.
- College of Bioengineering, Chongqing University, Chongqing 400044, PR China
| | - Mei Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, PR China.
- College of Bioengineering, Chongqing University, Chongqing 400044, PR China
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2
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Wu J, Wu Y, Bian H, Peng Z, Liu Y, Yin Y, Du J, Lu X. Fabrication of a ratiometric electrochemiluminescence biosensor using single self-enhanced nanoluminophores for the detection of spermine. Talanta 2023; 253:123880. [PMID: 36095937 DOI: 10.1016/j.talanta.2022.123880] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/10/2022] [Accepted: 08/23/2022] [Indexed: 12/13/2022]
Abstract
A ratiometric electrochemiluminescence strategy using a single luminophore for accurate and sensitive biomolecule detection could be immensely valuable in bioanalysis. Herein, an ultrasensitive ratiometric electrochemiluminescence sensing system was fabricated using a self-enhanced luminophore with dual-signal emission for the detection of spermine. A nanocomposite was synthesized by the covalent attachment of N, N-diisopropylethylenediamine onto glutathione-protected Au-Ag bimetallic nanoclusters (DPEA-GSH@Au/Ag BNCs). The nanocomposite exhibited efficient intra-cluster charge transfer to produce strong anodic self-enhanced electrochemiluminescence emission at 0.8 V without external co-reactants. Interestingly, the DPEA@GSH@Au-Ag BNCs exhibited cathodic electrochemiluminescence emission upon the addition of the co-reactant potassium persulfate at -1.6 V, exhibiting stable and efficient dual-signal electrochemiluminescence emission features at a continuous potential window of -1.75 to 1.2 V. Thus, they were used to fabricate a single-luminophore electrochemiluminescence sensor with dual emission. The cathodic emission of the biosensor gradually increased with increasing concentrations of spermine, whereas the anodic electrochemiluminescence intensity remained almost constant, enabling the ratiometric detection of spermine. The fabricated biosensor, with an internal standard, significantly improved the accuracy and reliability of spermine detection in a wide concentration range of 0.85 pM-100 μM, with a low limit of detection of 0.12 pM (S/N = 3) under optimum conditions. This single-luminophore electrochemiluminescence sensing system could be used for the detection of spermine and could guide the construction of ratiometric electrochemiluminescence sensors in the future.
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Affiliation(s)
- Jiangmin Wu
- College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, China
| | - Yang Wu
- College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, China
| | - Huifang Bian
- College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, China
| | - Zhengdong Peng
- College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, China
| | - Yongmei Liu
- College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, China
| | - Yongde Yin
- College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, China
| | - Jie Du
- College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu, China; Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, Northwest Normal University, Lanzhou, 730070, Gansu, China.
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, Northwest Normal University, Lanzhou, 730070, Gansu, China
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Lu B, Wang L, Ran X, Tang H, Cao D. Recent Advances in Fluorescent Methods for Polyamine Detection and the Polyamine Suppressing Strategy in Tumor Treatment. BIOSENSORS 2022; 12:bios12080633. [PMID: 36005029 PMCID: PMC9405807 DOI: 10.3390/bios12080633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/23/2022] [Accepted: 08/08/2022] [Indexed: 12/22/2022]
Abstract
The biogenic aliphatic polyamines (spermine, spermidine, and putrescine) are responsible for numerous cell functions, including cell proliferation, the stabilization of nucleic acid conformations, cell division, homeostasis, gene expression, and protein synthesis in living organisms. The change of polyamine concentrations in the urine or blood is usually related to the presence of malignant tumors and is regarded as a biomarker for the early diagnosis of cancer. Therefore, the detection of polyamine levels in physiological fluids can provide valuable information in terms of cancer diagnosis and in monitoring therapeutic effects. In this review, we summarize the recent advances in fluorescent methods for polyamine detection (supramolecular fluorescent sensing systems, fluorescent probes based on the chromophore reaction, fluorescent small molecules, and fluorescent nanoparticles). In addition, tumor polyamine-suppressing strategies (such as polyamine conjugate, polyamine analogs, combinations that target multiple components, spermine-responsive supramolecular chemotherapy, a combination of polyamine consumption and photodynamic therapy, etc.) are highlighted. We hope that this review promotes the development of more efficient polyamine detection methods and provides a comprehensive understanding of polyamine-based tumor suppressor strategies.
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Affiliation(s)
- Bingli Lu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Lingyun Wang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
- Correspondence:
| | - Xueguang Ran
- Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Ministry of Agriculture Key Laboratory of Animal Nutrition and Feed Science in South China, State Key Laboratory of Livestock and Poultry Breeding, Guangzhou 510641, China
| | - Hao Tang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
| | - Derong Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510641, China
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Khanlarkhani S, Akbarzadeh AR, Rahimi R. A retrospective-prospective survey of porphyrinoid fluorophores: towards new architectures as an electron transfer systems promoter. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-022-01147-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Naik VG, Kumar V, Bhasikuttan AC, Kadu K, Ramanan SR, Bhosle AA, Banerjee M, Chatterjee A. Solid-Supported Amplification of Aggregation Emission: A Tetraphenylethylene-Cucurbit[6]uril@Hydroxyapatite-Based Supramolecular Sensing Assembly for the Detection of Spermine and Spermidine in Human Urine and Blood. ACS APPLIED BIO MATERIALS 2021; 4:1813-1822. [PMID: 35014527 DOI: 10.1021/acsabm.0c01527] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The development of sensitive and selective tools for the detection and quantification of biomarkers is important in the diagnosis and treatment of clinical diseases. Spermine (SP) and spermidine (SPD) act as biomarkers for early-stage diagnosis of cancer in humans as their increased levels in urine are indicative of abnormal biological processes associated with this fatal disease. In this study, we introduced a strategy for solid-supported amplification of the effective aggregation-induced-emission (AIE) effect of a water-soluble tetraphenylethylene (TPE)-based probe in developing a supramolecular sensing platform for the rapid, sensitive, and selective detection of SP and SPD in water. The nonemissive TPE derivative (TPEHP) forms a less emissive conjugate with hydroxyl cucurbit[6]uril (CB[6]OH) in water, which undergoes several-fold enhancement of effective emission upon electrostatic interaction with the solid surface of hydroxyapatite nanoparticles (HAp NPs), dispersed in the aqueous media. The corresponding three-component supramolecular assembly disrupts by the intrusion of SP and SPD in the CB[6] portal because of the stronger binding ability with CB[6], resulting in a turn-off fluorescence sensor for SP and SPD with enhanced sensitivity. The assembly-disassembly-based sensing mechanism was thoroughly demonstrated by carrying out isothermal titration calorimetry (ITC), spectroscopic, and microscopic experiments. The sensing system showed low limits of detection (LODs) of 1.4 × 10-8 and 3.6 × 10-8 M for SP and SPD, respectively, which are well below the required range for the early diagnosis of cancer. Besides, a good linear relationship was obtained for both SP and SPD. Nominal interference from various metal ions, anions, common chemicals, amino acids, and other biogenic amines makes this sensing platform suitable for the real-time, low-level measurement of spermine (and spermidine) in human urinary and blood samples.
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Affiliation(s)
- Viraj G Naik
- Department of Chemistry, BITS Pilani K K Birla Goa Campus, Zuarinagar, Sancoale 403726, Goa, India
| | - Vikash Kumar
- Department of Chemistry, BITS Pilani K K Birla Goa Campus, Zuarinagar, Sancoale 403726, Goa, India
| | - Achikanath C Bhasikuttan
- Radiation & Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400094, India.,Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Kavita Kadu
- Department of Chemical Engineering, BITS Pilani K K Birla Goa Campus, Zuarinagar, Sancoale 403726, Goa, India
| | - Sutapa Roy Ramanan
- Department of Chemical Engineering, BITS Pilani K K Birla Goa Campus, Zuarinagar, Sancoale 403726, Goa, India
| | - Akhil A Bhosle
- Department of Chemistry, BITS Pilani K K Birla Goa Campus, Zuarinagar, Sancoale 403726, Goa, India
| | - Mainak Banerjee
- Department of Chemistry, BITS Pilani K K Birla Goa Campus, Zuarinagar, Sancoale 403726, Goa, India
| | - Amrita Chatterjee
- Department of Chemistry, BITS Pilani K K Birla Goa Campus, Zuarinagar, Sancoale 403726, Goa, India
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6
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Zhang H, Liu M, Zhu X, Li H. Detection of Spermine Using Cucurbit[7]uril-phenazopyridine Host-Guest Inclusion Complex as a Platform. CHEM LETT 2021. [DOI: 10.1246/cl.200667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Huaqing Zhang
- School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P. R. China
- Advanced Institute of materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Mei Liu
- School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P. R. China
- Advanced Institute of materials Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Xiaofei Zhu
- School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P. R. China
| | - Hui Li
- School of Chemistry and Life Science, Changchun University of Technology, Changchun 130012, P. R. China
- Advanced Institute of materials Science, Changchun University of Technology, Changchun 130012, P. R. China
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Kumar K, Kaur S, Kaur S, Bhargava G, Kumar S, Singh P. Perylene diimide-Cu 2+ based fluorescent nanoparticles for the detection of spermine in clinical and food samples: a step toward the development of a diagnostic kit as a POCT tool for spermine. J Mater Chem B 2019; 7:7218-7227. [PMID: 31663586 DOI: 10.1039/c9tb02039j] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The sustainable development of point-of-care testing (POCT) for spermine detection is important to check for food spoilage, early diagnosis of various malignancies and diminished anticonvulsant drug carbamazepine response in chronic epilepsy. Herein, the synthesis, characterization and spectroscopic properties of perylene diimide EA-PDI∩Cu2+ complex based nanoparticles towards spermine were studied in detail. This EA-PDI∩Cu2+ complex can be used for the ultrasensitive detection of spermine as low as 86.3 nM (UV-vis) and 90 pM (fluorescence) in aqueous medium, in urine and blood serum samples (recovery 99 ± 3) and in the solid state (0.1 μg L-1), and EA-PDI shows minimal cytotoxicity to cells and can easily enter into Human Osteosarcoma MG-63 cells for bio-imaging of Cu2+ and spermine. This EA-PDI∩Cu2+ complex can be established as a cost-effective method to develop a diagnostic kit for POCT of spermine in terms of a solution-based test kit for real time detection of spermine in vapor and solution form released from fermented food samples.
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Affiliation(s)
- Kapil Kumar
- Department of Chemistry, UGC Centre of Advanced Studies - II, Guru Nanak Dev University, Amritsar 143 005, India.
| | - Sandeep Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Satwinderjeet Kaur
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
| | - Gaurav Bhargava
- Department of Chemical Sciences, IK Gujral Punjab Technical University, Kapurthala 144601, India
| | - Subodh Kumar
- Department of Chemistry, UGC Centre of Advanced Studies - II, Guru Nanak Dev University, Amritsar 143 005, India.
| | - Prabhpreet Singh
- Department of Chemistry, UGC Centre of Advanced Studies - II, Guru Nanak Dev University, Amritsar 143 005, India.
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8
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Bhamore JR, Murthy Z, Kailasa SK. Fluorescence turn-off detection of spermine in biofluids using pepsin mediated synthesis of gold nanoclusters as a probe. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.132] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Highly selective detection of spermine in human urine via a nanometal surface energy transfer platform. Talanta 2018; 188:218-224. [DOI: 10.1016/j.talanta.2018.05.086] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/16/2018] [Accepted: 05/24/2018] [Indexed: 01/07/2023]
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10
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Swaroop TR, Tabasi ZA, Zhao Y, Georghiou PE. New Aryl-Substituted 2,2′-Bithiophenes: Synthesis, Optoelectronic Properties and DFT Studies. ChemistrySelect 2018. [DOI: 10.1002/slct.201802062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Toreshettahally R. Swaroop
- Department of Studies in Organic Chemistry; University of Mysore, Manasagangothri, Mysuru, Karnataka; India - 570 006
- Department of Chemistry; Memorial University of Newfoundland, St. John's, Newfoundland and Labrador; CANADA A1B 3X7
| | - Zahra A. Tabasi
- Department of Chemistry; Memorial University of Newfoundland, St. John's, Newfoundland and Labrador; CANADA A1B 3X7
| | - Yuming Zhao
- Department of Chemistry; Memorial University of Newfoundland, St. John's, Newfoundland and Labrador; CANADA A1B 3X7
| | - Paris E. Georghiou
- Department of Chemistry; Memorial University of Newfoundland, St. John's, Newfoundland and Labrador; CANADA A1B 3X7
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Kaur N, Chopra S, Singh G, Raj P, Bhasin A, Sahoo SK, Kuwar A, Singh N. Chemosensors for biogenic amines and biothiols. J Mater Chem B 2018; 6:4872-4902. [PMID: 32255063 DOI: 10.1039/c8tb00732b] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
There is burgeoning interest among supramolecular chemists to develop novel molecular systems to detect biogenic amines and bio-thiols in aqueous and non-aqueous media due to their potential role in biological processes. Biogenic amines are biologically important targets because of their involvement in the energy metabolism of human biological systems and their requirement is met through food and nutrition. However, the increasing instances of serious health problems due to food toxicity have raised the quality of food nowadays. Biogenic amines have been frequently considered as the markers or primary quality parameters of foods like antioxidant properties, freshness and spoilage. For instance, these amines such as spermine, spermidine, cadavarine, etc. may originate during microbial decarboxylation of amino acids of fermented foods/beverages. These amines may also react with nitrite available in certain meat products and concomitantly produce carcinogenic nitrosamine compounds. On the other hand, it is also well established that biothiols, particularly, thiol amino acids, provide the basic characteristics to food including flavor, color and texture that determine its acceptability. For instance, the reduction of thiol groups produces hydrogen sulfide which reduces flavour as in rotten eggs and spoiled fish, and the presence of hydrogen sulfide in fish is indicative of spoilage. Thus, biogenic amines and bio-thiols have attracted the profound interest of researchers as analytical tools for their quantification. Much scientific and technological information is issued every year, where the establishment of precise interactions of biogenic amines and bio-thiols with other molecules is sought in aqueous and non-aqueous media. This review summarizes the optical chemosensors developed for the selective detection of biogenic amines and bio-thiols.
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Affiliation(s)
- Navneet Kaur
- Department of Chemistry, Panjab University (PU), Chandigarh-160014, India.
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Kim TI, Kim Y. Analyte-directed formation of emissive excimers for the selective detection of polyamines. Chem Commun (Camb) 2018; 52:10648-51. [PMID: 27501825 DOI: 10.1039/c6cc05761f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A convenient and selective method for the sensing of polyamines, which are important biomarkers for cancers, has been developed. The fluorescence light-up mechanism utilizes the analyte-induced formation of emissive excimers of a sulfonated probe. Detection is achieved in aqueous media and artificial urine samples, as indicated by an excellent fluorescence turn-on signal with a large spectral shift.
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Affiliation(s)
- Tae-Il Kim
- Department of Chemistry, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
| | - Youngmi Kim
- Department of Chemistry, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea.
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Selective colorimetric analysis of spermine based on the cross-linking aggregation of gold nanoparticles chain assembly. Talanta 2017; 167:193-200. [DOI: 10.1016/j.talanta.2017.01.085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 01/25/2017] [Accepted: 01/29/2017] [Indexed: 11/21/2022]
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Tu J, Sun S, Xu Y. A novel self-assembled platform for the ratiometric fluorescence detection of spermine. Chem Commun (Camb) 2016; 52:1040-3. [DOI: 10.1039/c5cc07861j] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A novel self-assembled platform where the micelles of a pyrene derivative act as the shell and squaraine (SQ) as the nucleus was constructed for the ratiometric near infrared (NIR) fluorescence detection of urinary spermine with high selectivity.
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Affiliation(s)
- Jia Tu
- College of Science
- Northwest A&F University
- Yangling
- P. R. China
| | - Shiguo Sun
- College of Science
- Northwest A&F University
- Yangling
- P. R. China
| | - Yongqian Xu
- College of Science
- Northwest A&F University
- Yangling
- P. R. China
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Chen Y, Zhang J, Gao Y, Lee J, Chen H, Yin Y. Visual determination of aliphatic diamines based on host–guest recognition of calix[4]arene derivatives capped gold nanoparticles. Biosens Bioelectron 2015; 72:306-12. [DOI: 10.1016/j.bios.2015.04.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 04/01/2015] [Accepted: 04/13/2015] [Indexed: 10/23/2022]
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16
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Chopra S, Singh J, Kaur H, Singh A, Singh N, Kaur N. Colorimetric Detection of Spermine by the CuIIComplex of Imine-Based Organic Nanoaggregates in Aqueous Medium. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500489] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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17
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Yao Y, Zhou Y, Dai J, Yue S, Xue M. Host–guest recognition-induced color change of water-soluble pillar[5]arene modified silver nanoparticles for visual detection of spermine analogues. Chem Commun (Camb) 2014; 50:869-71. [DOI: 10.1039/c3cc48358d] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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