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Yu H, Yang Z, Fu S, Zhang Y, Panneerselvamc R, Li B, Zhang L, Chen Z, Wang X, Li J. Intelligent convolution neural network-assisted SERS to realize highly accurate identification of six pathogenic Vibrio. Chem Commun (Camb) 2023; 59:5779-5782. [PMID: 37096554 DOI: 10.1039/d3cc01129a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
Based on label-free SERS technology, the relationship between the Raman signals of pathogenic Vibrio microorganisms and purine metabolites was analyzed in detail. A deep learning CNN model was successfully developed, achieving a high accuracy rate of 99.7% in the identification of six typical pathogenic Vibrio species within 15 minutes, providing a new method for pathogen identification.
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Affiliation(s)
- Hui Yu
- College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, School of Aerospace Engineering, Xiamen University, Xiamen 361005, China.
| | - Zhilan Yang
- College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, School of Aerospace Engineering, Xiamen University, Xiamen 361005, China.
| | - Shiying Fu
- College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, School of Aerospace Engineering, Xiamen University, Xiamen 361005, China.
| | - Yuejiao Zhang
- College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, School of Aerospace Engineering, Xiamen University, Xiamen 361005, China.
| | | | - Baoqiang Li
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Lin Zhang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China.
| | - Zehui Chen
- Xiamen City Center for Disease Control and Prevention, Xiamen 361005, China.
| | - Xin Wang
- College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, School of Aerospace Engineering, Xiamen University, Xiamen 361005, China.
| | - Jianfeng Li
- College of Materials, State Key Laboratory for Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, School of Aerospace Engineering, Xiamen University, Xiamen 361005, China.
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Hu P, Huang R, Xu Y, Li T, Yin J, Yang Y, Liang Y, Mao X, Ding L, Shu C. A novel and sensitive ratiometric fluorescent quantum dot-based biosensor for alkaline phosphatase detection in biological samples via the inner-filter effect. RSC Adv 2023; 13:2311-2317. [PMID: 36741147 PMCID: PMC9841509 DOI: 10.1039/d2ra06956c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/03/2023] [Indexed: 01/18/2023] Open
Abstract
Alkaline phosphatase (ALP) is an important biomarker whose abnormal level in activity is associated with hepatobiliary, skeletal, and renal diseases as well as cancer. Herein, we synthesized ZnSe@ZnS quantum dots (ZnSe@ZnS QDs) and Mn-doped ZnS quantum dots (Mn:ZnS QDs) as fluorophores to establish the ratiometric fluorescent assay for ALP activity detection in biological samples. p-Nitrophenyl phosphate (PNPP) was used as a substrate for ALP, and the overlaps between absorption spectra of PNPP and excitation spectra of QDs resulted in sharp fluorescence quenching. Under the catalysis of ALP, PNPP was hydrolyzed into p-nitrophenol (PNP), which caused a red shift of absorption band of PNPP and fluorescence recovery of Mn:ZnS QDs (585 nm). However, the overlaps between absorption spectra of PNP and emission spectra of ZnSe@ZnS QDs led a further quenching of ZnSe@ZnS QDs (405 nm). Therefore, the ratiometric fluorescent signals (F 585/F 405) were associated with activity of ALP based on bidirectional responses of QDs to the concentration of PNPP. Under the optimum conditions, the method exhibited a good linear relationship from 4 to 96 U per L (R 2 = 0.9969) with the detection limit of 0.57 U per L. Moreover, the method was successfully applied for detecting the ALP activity in a complex biological matrix (human serum and HepG2 cells) with impressive specificity. In particular, the complicated chemical modifications of QDs and pretreatments of biological samples were not required in the whole detection procedures. Therefore, it not only provided a sensitive, specific and simple approach to clinical ALP activity detection, but it also provided support for early diagnosis of diseases.
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Affiliation(s)
- Penghui Hu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Ruiyan Huang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Ye Xu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Tengfei Li
- Department of Clinical Pharmacology, School of Pharmacy, Sir Run Run Hospital, Nanjing Medical UniversityNanjing 211166China
| | - Jun Yin
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Yu Yang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Yuan Liang
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Xiaohan Mao
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical UniversityNanjing 211198China
| | - Li Ding
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
| | - Chang Shu
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of EducationNanjing 210009China,Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University24 TongjiaxiangNanjing211198P. R. China
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Yu Z, Jiang F, Hu C, Tang B. Functionalized nanoprobes for in situ detection of telomerase. Chem Commun (Camb) 2021; 57:3736-3748. [PMID: 33876119 DOI: 10.1039/d0cc08412c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Telomerase, a special ribonucleoprotein reverse transcriptase, can maintain the length and stability of telomeres and plays an important role in cell proliferation and differentiation. Due to the distinguishable expression level in normal cells and cancer cells, telomerase has become an important biomarker for cancer diagnosis and prognosis evaluation. Despite major breakthroughs in the field of telomerase detection, the extracts in the cell lysate are still the first choice as the analyte nevertheless, which will bring serious inaccuracies compared with the real intracellular activity. With the development of nanotechnology and nanomaterials, extraordinary progress has been made in telomerase detection by employing different versatile nanoprobes. In this review, we list the superiority of nanoprobes and systematically summarize the applications of nanoprobes in telomerase detection from the aspects of various nanomaterials and discuss the current challenges and potential trends in the future design of nanoprobes.
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Affiliation(s)
- Zhengze Yu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, P. R. China.
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Wang D, Xue W, Ren X, Xu Z. A review on sensing mechanisms and strategies for telomerase activity detection. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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