1
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Hu J, Chen P, Zhang L, Sun P, Huang Y, Liu X, Fan Q. A universal optical aptasensor for antibiotics determination based on a new high-efficiency Förster resonance energy transfer pair. Mikrochim Acta 2024; 191:561. [PMID: 39180707 DOI: 10.1007/s00604-024-06629-1] [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: 04/27/2024] [Accepted: 08/01/2024] [Indexed: 08/26/2024]
Abstract
A novel "turn-on" aptasensor for kanamycin (Kana) detection based on a new Förster resonance energy transfer (FRET) pair is reported. A new organic small molecule was employed as a high-efficiency quencher for fluorophore. Based on specific interactions between ssDNA and the quencher, an ingenious and amplified strategy was designed. In the absence of the target, the fluorescence of the fluorophore labeled at the end of the aptamer was quenched. After the binding of the aptamer to the target, the fluorescence was recovered and amplified. The proposed aptasensor showed high specificity, selectivity, and stability in complicated systems. With the P3-based strategy, the limit of detection for Kana is estimated to be 10 nM, which is much lower than the maximum allowable concentration in milk. The recoveries of spiked Kana in milk were in the range 99.8 ~ 105.3% (n = 3). Fortunately, this novel method can be easily extended to other antibiotics such as tobramycin by simply replacing the aptamer, showing great potential as a universal platform for selective, sensitive, and rapid detection of hazardous analytes in food samples.
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Affiliation(s)
- Junbo Hu
- The State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Pengfei Chen
- The State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Longsheng Zhang
- The State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Pengfei Sun
- The State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China.
| | - Yanqin Huang
- The State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
| | - Xingfen Liu
- The State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China.
| | - Quli Fan
- The State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing, 210023, China
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2
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Vistain L, Keisham B, Xia J, Phan HV, Tay S. Proximity sequencing for the detection of mRNA, extracellular proteins and extracellular protein complexes in single cells. Nat Protoc 2024:10.1038/s41596-024-01030-x. [PMID: 39147984 DOI: 10.1038/s41596-024-01030-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 05/24/2024] [Indexed: 08/17/2024]
Abstract
Complex cellular functions occur via the coordinated formation and dissociation of protein complexes. Functions such as the response to a signaling ligand can incorporate dozens of proteins and hundreds of complexes. Until recently, it has been difficult to measure multiple protein complexes at the single-cell level. Here, we present a step-by-step procedure for proximity sequencing, which enables the simultaneous measurement of proteins, mRNA and hundreds of protein complexes located on the outer membrane of cells. We guide the user through probe creation, sample preparation, staining, sequencing and computational quantification of protein complexes. This protocol empowers researchers to study, for example, the interplay between transcriptional states and cellular functions by coupling measurements of transcription to measurements of linked effector molecules, yet could be generalizable to other paired events. The protocol requires roughly 16 h spread over several days to complete by users with expertise in basic molecular biology and single-cell sequencing.
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Affiliation(s)
- Luke Vistain
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL, USA
- Institute for Genomics and Systems Biology, The University of Chicago, Chicago, IL, USA
- Lymphocyte Biology Section, Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Bijentimala Keisham
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL, USA
- Institute for Genomics and Systems Biology, The University of Chicago, Chicago, IL, USA
| | - Junjie Xia
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL, USA
- Institute for Genomics and Systems Biology, The University of Chicago, Chicago, IL, USA
| | - Hoang Van Phan
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL, USA
- Institute for Genomics and Systems Biology, The University of Chicago, Chicago, IL, USA
- Division of Infectious Disease, University of California, San Francisco, San Francisco, CA, USA
| | - Savaş Tay
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL, USA.
- Institute for Genomics and Systems Biology, The University of Chicago, Chicago, IL, USA.
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3
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Chen Y, Lu H, He Q, Yang J, Lu H, Han J, Zhu Y, Hu P. Quantification of Microsphere Drug Release by Fluorescence Imaging with the FRET System. Pharmaceutics 2024; 16:1019. [PMID: 39204364 PMCID: PMC11360167 DOI: 10.3390/pharmaceutics16081019] [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: 06/13/2024] [Revised: 07/26/2024] [Accepted: 07/27/2024] [Indexed: 09/04/2024] Open
Abstract
Accurately measuring drug and its release kinetics in both in vitro and in vivo environments is crucial for enhancing therapeutic effectiveness while minimizing potential side effects. Nevertheless, the real-time visualization of drug release from microspheres to monitor potential overdoses remains a challenge. The primary objective of this investigation was to employ fluorescence imaging for the real-time monitoring of drug release from microspheres in vitro, thereby simplifying the laborious analysis associated with the detection of drug release. Two distinct varieties of microspheres were fabricated, each encapsulating different drugs within PLGA polymers. Cy5 was selected as the donor, and Cy7 was selected as the acceptor for visualization and quantification of the facilitated microsphere drug release through the application of the fluorescence resonance energy transfer (FRET) principle. The findings from the in vitro experiments indicate a correlation between the FRET fluorescence alterations and the drug release profiles of the microspheres.
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Affiliation(s)
- Yuying Chen
- College of Pharmacy, Jinan University, Guangzhou 511436, China; (Y.C.); (H.L.); (Q.H.); (J.Y.); (H.L.); (Y.Z.)
| | - Huangjie Lu
- College of Pharmacy, Jinan University, Guangzhou 511436, China; (Y.C.); (H.L.); (Q.H.); (J.Y.); (H.L.); (Y.Z.)
| | - Qingwei He
- College of Pharmacy, Jinan University, Guangzhou 511436, China; (Y.C.); (H.L.); (Q.H.); (J.Y.); (H.L.); (Y.Z.)
| | - Jie Yang
- College of Pharmacy, Jinan University, Guangzhou 511436, China; (Y.C.); (H.L.); (Q.H.); (J.Y.); (H.L.); (Y.Z.)
| | - Hong Lu
- College of Pharmacy, Jinan University, Guangzhou 511436, China; (Y.C.); (H.L.); (Q.H.); (J.Y.); (H.L.); (Y.Z.)
| | - Jiongming Han
- International School, Jinan University, Guangzhou 511436, China;
| | - Ying Zhu
- College of Pharmacy, Jinan University, Guangzhou 511436, China; (Y.C.); (H.L.); (Q.H.); (J.Y.); (H.L.); (Y.Z.)
| | - Ping Hu
- College of Pharmacy, Jinan University, Guangzhou 511436, China; (Y.C.); (H.L.); (Q.H.); (J.Y.); (H.L.); (Y.Z.)
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4
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Xie YR, Pan HJ, Zhang ZH, Jia LP, Zhang W, Shang L, Li XJ, Xue QW, Wang HS, Ma RN. Distinguishable Magnetic Reporter Coordination with Buoyancy-Magnetism Separation for Immobilization-Free Dual-Target Electrochemical Immunosensing. Anal Chem 2024; 96:8365-8372. [PMID: 38717986 DOI: 10.1021/acs.analchem.3c05391] [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: 05/29/2024]
Abstract
Simultaneous sensitive and precise determination of multibiomarkers is of great significance for improving detection efficiency, reducing diagnosis and treatment expenses, and elevating survival rates. However, the development of simple and portable biosensors for simultaneous determination of multiplexed targets in biological fluids still faces challenges. Herein, a unique and versatile immobilization-free dual-target electrochemical biosensing platform, which combines distinguishable magnetic signal reporters with buoyancy-magnetism separation, was designed and constructed for simultaneous detection of carcinoembryonic (CEA) and α-fetoprotein (AFP) in intricate biological fluids. To construct such distinguishable magnetic signal reporters with signal transduction, amplification, and output, secondary antibodies of CEA and AFP were respectively functionalized on methylene blue (MB) and 6-(ferrocenyl)hexanethiol (FeC) modified Fe3O4@Au magnetic nanocomposites. Meanwhile, a multifunctional flotation probe with dual target recognition, capture, and isolation capability was prepared by conjugating primary antibodies (Ab1-CEA, Ab1-AFP) to hollow buoyant microspheres. The target antigens of CEA and AFP can trigger a flotation-mediated sandwich-type immunoreaction and capture a certain amount of the distinguishable magnetic signal reporter, which enables the conversion of the target CEA and AFP quantities to the signal of the potential-resolved MB and FeC. Thus, the MB and FeC currents of magnetically adsorbed distinguishable magnetic reporters can be used to determine the CEA and AFP targets simultaneously and precisely. Accordingly, the proposed strategy exhibited a delightful linear response for CEA and AFP in the range of 100 fg·mL-1-100 ng·mL-1 with detection limits of 33.34 and 17.02 fg·mL-1 (S/N = 3), respectively. Meanwhile, no significant nonspecific adsorption and cross-talk were observed. The biosensing platform has shown satisfactory performance in the determination of real clinical samples. More importantly, the proposed approach can be conveniently extended to universal detection just by simply substituting biorecognition events. Thus, this work opens up a new promising perspective for dual and even multiple targets and offers promising potential applications in clinical diagnosis.
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Affiliation(s)
- Ya-Rong Xie
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage, Liaocheng University, Liaocheng 252059, Shandong, P. R. China
| | - Hui-Jing Pan
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage, Liaocheng University, Liaocheng 252059, Shandong, P. R. China
| | - Zhi-Heng Zhang
- Oncology Department, Hospital of Traditional Chinese Medicine of Liaocheng City, Liaocheng 252000, Shandong, P. R. China
| | - Li-Ping Jia
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage, Liaocheng University, Liaocheng 252059, Shandong, P. R. China
| | - Wei Zhang
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage, Liaocheng University, Liaocheng 252059, Shandong, P. R. China
| | - Lei Shang
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage, Liaocheng University, Liaocheng 252059, Shandong, P. R. China
| | - Xiao-Jian Li
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage, Liaocheng University, Liaocheng 252059, Shandong, P. R. China
| | - Qing-Wang Xue
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage, Liaocheng University, Liaocheng 252059, Shandong, P. R. China
| | - Huai-Sheng Wang
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage, Liaocheng University, Liaocheng 252059, Shandong, P. R. China
| | - Rong-Na Ma
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage, Liaocheng University, Liaocheng 252059, Shandong, P. R. China
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5
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Chu Y, Xi J, Sun Y, Zhang L, Xiao H, Wu W. In situ growth of Ag 2S quantum dots on cellulose nanocrystals and their near-infrared bioimaging performance. Int J Biol Macromol 2024; 257:128601. [PMID: 38056739 DOI: 10.1016/j.ijbiomac.2023.128601] [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: 05/30/2023] [Revised: 10/29/2023] [Accepted: 12/02/2023] [Indexed: 12/08/2023]
Abstract
Elongated nanoparticles show distinct advantages over spherical nanoparticles in bioimaging because of surface area-to-volume, rate of clearance from the body and elimination mechanism. In this work, we investigated the fluorescence emission properties of the hybrid system by decorating silver sulfide quantum dots (Ag2S QDs) in situ on the surface of cellulose nanocrystal (CNC) with unique rod shape, modifiability and biocompatibility. This water-dispersible fluorescent probe has both absorption and fluorescence in near-infrared (NIR) region. By varying the amount of surface ligands, uniformly dispersed Ag2S QDs with different crystalline states but similar sizes were prepared due to the anchoring effect of CNC. The fluorescence quantum yield of fluorescent probes can be improved up to 109-fold (from 0.04 % to 4.36 %). In addition, the CNC-restricted interparticle spacing of Ag2S QDs (< 10 nm), in combination with the overlap of wide fluorescence emission and ultraviolet absorption, significantly enhanced the 1070 nm emission in the NIR-II region via fluorescence resonance energy transfer (FRET). Further conjugation of these CNC probes with folic acid-polyethylene glycol-amino (FA-PEG-NH2) enables in vitro bioimaging of Hela cells, which are potentially applicable for in vivo cancer detection system. The synthetic strategy provides a new way for one-pot preparation of fluorescent probes with both high NIR-I absorption and NIR-II fluorescence.
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Affiliation(s)
- Youlu Chu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianfeng Xi
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yan Sun
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lei Zhang
- Key Laboratory for Organic Electronics and Information, National Jiangsu Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Weibing Wu
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China.
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6
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Sandberg E, Demirbay B, Kulkarni A, Liu H, Piguet J, Widengren J. Fluorescence Bar-Coding and Flowmetry Based on Dark State Transitions in Fluorescence Emitters. J Phys Chem B 2024; 128:125-136. [PMID: 38127267 PMCID: PMC10788918 DOI: 10.1021/acs.jpcb.3c06905] [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] [Received: 10/18/2023] [Revised: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 12/23/2023]
Abstract
Reversible dark state transitions in fluorophores represent a limiting factor in fluorescence-based ultrasensitive spectroscopy, are a necessary basis for fluorescence-based super-resolution imaging, but may also offer additional, largely orthogonal fluorescence-based readout parameters. In this work, we analyzed the blinking kinetics of Cyanine5 (Cy5) as a bar-coding feature distinguishing Cy5 from rhodamine fluorophores having largely overlapping emission spectra. First, fluorescence correlation spectroscopy (FCS) solution measurements on mixtures of free fluorophores and fluorophore-labeled small unilamellar vesicles (SUVs) showed that Cy5 could be readily distinguished from the rhodamines by its reversible, largely excitation-driven trans-cis isomerization. This was next confirmed by transient state (TRAST) spectroscopy measurements, determining the fluorophore dark state kinetics in a more robust manner, from how the time-averaged fluorescence intensity varies upon modulation of the applied excitation light. TRAST was then combined with wide-field imaging of live cells, whereby Cy5 and rhodamine fluorophores could be distinguished on a whole cell level as well as in spatially resolved, multiplexed images of the cells. Finally, we established a microfluidic TRAST concept and showed how different mixtures of free Cy5 and rhodamine fluorophores and corresponding fluorophore-labeled SUVs could be distinguished on-the-fly when passing through a microfluidic channel. In contrast to FCS, TRAST does not rely on single-molecule detection conditions or a high time resolution and is thus broadly applicable to different biological samples. Therefore, we expect that the bar-coding concept presented in this work can offer an additional useful strategy for fluorescence-based multiplexing that can be implemented on a broad range of both stationary and moving samples.
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Affiliation(s)
- Elin Sandberg
- Royal Institute of Technology
(KTH), Experimental Biomolecular Physics, Dept. Applied Physics, Albanova University Center, 106 91 Stockholm, Sweden
| | - Baris Demirbay
- Royal Institute of Technology
(KTH), Experimental Biomolecular Physics, Dept. Applied Physics, Albanova University Center, 106 91 Stockholm, Sweden
| | - Abhilash Kulkarni
- Royal Institute of Technology
(KTH), Experimental Biomolecular Physics, Dept. Applied Physics, Albanova University Center, 106 91 Stockholm, Sweden
| | - Haichun Liu
- Royal Institute of Technology
(KTH), Experimental Biomolecular Physics, Dept. Applied Physics, Albanova University Center, 106 91 Stockholm, Sweden
| | - Joachim Piguet
- Royal Institute of Technology
(KTH), Experimental Biomolecular Physics, Dept. Applied Physics, Albanova University Center, 106 91 Stockholm, Sweden
| | - Jerker Widengren
- Royal Institute of Technology
(KTH), Experimental Biomolecular Physics, Dept. Applied Physics, Albanova University Center, 106 91 Stockholm, Sweden
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7
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Bhupathi P, Elhassan A-Elgadir TM, Mohammed Ali RH, Sanaan Jabbar H, Gulnoza D, Joshi SK, Kadhem Abid M, Ahmed Said E, Alawadi A, Alsaalamy A. Fluorescence Resonance Energy Transfer (FRET)-Based Sensor for Detection of Foodborne Pathogenic Bacteria: A Review. Crit Rev Anal Chem 2023:1-18. [PMID: 37917532 DOI: 10.1080/10408347.2023.2274050] [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: 11/04/2023]
Abstract
Sensitive and rapid determination of foodborne pathogenic bacteria is of practical importance for the control and prevention of foodborne illnesses. Nowadays, with the prosperous development of fluorescence assays, fluorescence resonance energy transfer (FRET)-derived diagnostic strategies are extensively employed in quantitative analysis of different pathogenic bacteria in food-related matrices, which displays a rapid, simple, stable, reliable, cost-effective, selective, sensitive, and real-time way. Considering the extensive efforts that have been made in this field so far, we here discuss the up-to-date developments of FRET-based diagnostic approaches for the determination of key foodborne pathogens like Staphylococcus aureus, Escherichia coli, Vibrio parahaemolyticus, Salmonella spp., Campylobacter spp., and Bacillus cereus in complex food-related matrices. Moreover, the principle of this technology, the choosing standards of acceptor-donor pairs, and the fluorescence properties are also profiled. Finally, the current prospects and challenges in this field are also put forward.
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Affiliation(s)
- Priyadharshini Bhupathi
- VIT School of Agricultural Innovations and Advanced Learning (VAIAL), Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India
| | | | | | - Hijran Sanaan Jabbar
- Department of Chemistry, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
- Department of Medical Laboratory Science, College of Health Sciences, Lebanese French University, Erbil, Kurdistan Region, Iraq
| | - Djakhangirova Gulnoza
- Department of Food Products Technology, Tashkent Institute of Chemical Technology, Navoi street 32, Tashkent 100011, Uzbekistan
| | - S K Joshi
- Department of Mechanical Engineering, Uttaranchal Institute of Technology, Uttaranchal University, Dehradun-248007, India
| | - Mohammed Kadhem Abid
- Department of Anesthesia, College of Health and medical Technology, Al-Ayen University, Thi-Qar, Iraq
| | - Esraa Ahmed Said
- Department of Dentistry, Al-Noor University College, Nineveh, Iraq
| | - Ahmed Alawadi
- College of Technical Engineering, The Islamic University, Najaf, Iraq
- College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
- College of Technical Engineering, The Islamic University of Babylon, Babylon, Iraq
| | - Ali Alsaalamy
- College of Technical Engineering, Imam Ja'afar Al-Sadiq University, Al-Muthanna 66002, Iraq
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8
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Mubeen M, Ain NU, Khalid MA, Mukhtar M, Naz B, Siddique Z, Ul-Hamid A, Iqbal A. Enhancing the FRET by tuning the bandgap of acceptor ternary ZnCdS quantum dots. RSC Adv 2023; 13:19096-19105. [PMID: 37362335 PMCID: PMC10288831 DOI: 10.1039/d3ra03233g] [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: 05/15/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023] Open
Abstract
In this article, we report the band gap tuning of ternary ZnCdS quantum dots (QDs) by varying the concentration of the capping ligand, mercaptoacetic acid (MAA). The functionalization of QDs leads to the control of their size and band gap due to the quantum confinement effect, causing blue shift in the absorption and photoluminescence (PL) spectra with a gradual change in the concentration of the capping ligand from 0.5 to 2.5 M. Ensulizole (2-phenylbenzimidazole-5-sulfonic acid) is an important organic ultraviolet (UV) filter that is frequently used in sunscreen cosmetics. An effective overlapping of the PL spectrum of ensulizole and the absorption spectrum of QDs with 2.5 M MAA is achieved. A formidable decrease in the PL intensity and the PL lifetime of ensulizole promotes an efficient Förster resonance energy transfer (FRET) from sunscreen ensulizole to the QDs. The magnitude of the FRET efficiency (E) is ∼70%. This very high value of E is the signature of the existence of a very fast energy transfer process from ensulizole to the MAA functionalized ZnCdS QDs. The dyad system consisting of ZnCdS QDs and ensulizole sunscreen can serve as a prototype model to develop a better understanding of the photochemistry of ensulizole and consequently the formulation of more efficient sunscreen cosmetics.
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Affiliation(s)
- Muhammad Mubeen
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | - Noor Ul Ain
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | | | - Maria Mukhtar
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | - Bushra Naz
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | - Zumaira Siddique
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
| | - Anwar Ul-Hamid
- Core Research Facilities, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - Azhar Iqbal
- Department of Chemistry, Quaid-I-Azam University Islamabad-45320 Pakistan
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9
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Bruce-Tagoe TA, Danquah MK. Bioaffinity Nanoprobes for Foodborne Pathogen Sensing. MICROMACHINES 2023; 14:1122. [PMID: 37374709 DOI: 10.3390/mi14061122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/18/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023]
Abstract
Bioaffinity nanoprobes are a type of biosensor that utilize the specific binding properties of biological molecules, such as antibodies, enzymes, and nucleic acids, for the detection of foodborne pathogens. These probes serve as nanosensors and can provide highly specific and sensitive detection of pathogens in food samples, making them an attractive option for food safety testing. The advantages of bioaffinity nanoprobes include their ability to detect low levels of pathogens, rapid analysis time, and cost-effectiveness. However, limitations include the need for specialized equipment and the potential for cross-reactivity with other biological molecules. Current research efforts focus on optimizing the performance of bioaffinity probes and expanding their application in the food industry. This article discusses relevant analytical methods, such as surface plasmon resonance (SPR) analysis, Fluorescence Resonance Energy Transfer (FRET) measurements, circular dichroism, and flow cytometry, that are used to evaluate the efficacy of bioaffinity nanoprobes. Additionally, it discusses advances in the development and application of biosensors in monitoring foodborne pathogens.
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Affiliation(s)
- Tracy Ann Bruce-Tagoe
- Department of Chemical Engineering, University of Tennessee, Chattanooga 615 McCallie Ave, Chattanooga, TN 37403, USA
| | - Michael K Danquah
- Department of Chemical Engineering, University of Tennessee, Chattanooga 615 McCallie Ave, Chattanooga, TN 37403, USA
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10
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Melavanki R, Kusanur R, Sharma K, Sadasivuni KK, Koppal VV, Patil NR. Exploration of spectroscopic, computational, fluorescence turn-off mechanism, molecular docking and in silico studies of pyridine derivative. Photochem Photobiol Sci 2023:10.1007/s43630-023-00427-z. [PMID: 37184774 DOI: 10.1007/s43630-023-00427-z] [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: 10/08/2022] [Accepted: 04/20/2023] [Indexed: 05/16/2023]
Abstract
The present work reports pyridine-based chalones using spectroscopic techniques to use pyridine derivative analysis. The solvatochromic behavior of 3DPP in non-polar, polar protic and aprotic solvents has been investigated experimentally. The photophysical property of the compound in diverse solvents is attributed to the intra-molecular charge transfer interactions. The dipole moment of 3DPP is estimated theoretically and experimentally using various solvatochromic methods. It is observed that there is a bathochromic shift in the emission spectra of 3DPP, which confirms the π → π* transition. Fluorescence quenching of 3DPP is studied. The type of fluorescence quenching mechanism is found to be collisional quenching. A study of FRET theory on 3DPP was carried out with metal ions. There is a considerable energy transfer between 3DPP and metal ions. NLO behaviors of the compound have been revealed with the help of Kurtz-Perry powder technique. Additionally, the title molecule is docked, carried ADMET studies and drug-like activity using in silico tools. It is probed for antifungal activity through bioinformatics kit which showed potential information.
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Affiliation(s)
- Raveendra Melavanki
- Department of Physics, M. S. Ramaiah Institute of Technology, Bangalore, Karnataka, 560054, India.
- Autonomous, Affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, 590018, India.
| | - Raviraj Kusanur
- Department of Chemistry, R.V. College of Engineering, Bangalore, Karnataka, India
| | - Kalpana Sharma
- Department of Physics, M. S. Ramaiah Institute of Technology, Bangalore, Karnataka, 560054, India
- Autonomous, Affiliated to Visvesvaraya Technological University, Belagavi, Karnataka, 590018, India
| | | | - V V Koppal
- Department of Physics, KLE Technological University, Hubli, Karnataka, 580031, India
| | - N R Patil
- Department of Physics, B V B College of Engineering and Technology, Hubli, Karnataka, 580031, India.
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11
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Kubba R, Kumar Singh M, Yadav O, Kumar A. Fӧrster resonance energy transfer (FRET) between CdSe quantum dots and ABA phosphorus(V) corroles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 291:122345. [PMID: 36657286 DOI: 10.1016/j.saa.2023.122345] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 12/21/2022] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
In this article, highly fluorescent phosphorus(V) corrole was synthesised which was then combined with CdSe quantum dots (QDs) in order to study Förster resonance energy transfer (FRET) mechanism between CdSe QDs (donor) and phosphorus corrole (acceptor). Spectral overlap between QD's emission profile and corrole's absorption profile was found to be significant enough to result into Förster resonance energy transfer (FRET). The UV-vis spectrum experienced increase in the absorption bands on addition of phosphorus corrole to CdSe QDs suggesting QD-corrole conjugation. In the steady state fluorescence measurements, emission spectrum observed quenching in the fluorescence intensity of prepared CdSe QDs on addition of phosphorus corrole. Likewise, in case of time-resolved fluorescence measurements it was noticed that the CdSe QD's lifetime was greatly quenched by the presence of a corrole acceptor. Stern-Volmer plot was made to show quenching in this case was dynamic in nature. Based on the results of UV-vis, steady state and time-resolved fluorescence measurements the plausible mechanism behind such observations is considered to be FRET.
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Affiliation(s)
- Ritika Kubba
- Department of Applied Chemistry, Delhi Technological University, Delhi 42, India
| | | | - Omprakash Yadav
- Department of Chemistry, ARSD College, University of Delhi, Delhi, India
| | - Anil Kumar
- Department of Applied Chemistry, Delhi Technological University, Delhi 42, India.
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12
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Silveira MAV, Batista Dos Santos SM, Okamoto DN, de Melo IS, Juliano MA, Ribeiro Chagas J, Vasconcellos SP. Atlantic Forest's and Caatinga's semiarid soils and their potential as a source for halothermotolerant actinomycetes and proteolytic enzymes. ENVIRONMENTAL TECHNOLOGY 2023; 44:1566-1578. [PMID: 34783646 DOI: 10.1080/09593330.2021.2008015] [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: 06/16/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Actinomycetes are versatile about their metabolism, displaying high capacity to produce bioactive metabolites. Enzymes from actinomycetes represent new opportunities for industrial applications. However, proteases from actinomycetes are poorly described by literature. Thereby, to verify proteolytic potential of actinomycetes, the present study aimed the investigation of bacterial isolates from Caatinga and Atlantic Forest rhizosphere. Fluorescence resonance energy transfer (FRET) peptide libraries were adopted for the evaluations, since they are faster and more qualitative methods, if compared with others described by most reports. A total of 52 microorganisms were inoculated in different culture media (PMB, potato dextrose agar, brain heart infusion agar, Starch Casein Agar and Reasoner's 2A agar), temperatures (12, 20, 30, 37, 45 and 60°C), and saline conditions (0-4 M NaCl), during 7 days. The actinomycetes named as AC 01, 02 and 52 were selected and showed enzymatic abilities under the peptide probes Abz-KLRSSKQ-EDDnp and Abz-KLYSSKQ-EDDnp, achieving enhanced performance at 30 °C. Biochemical parameters were established, showing a predominance of alkaline proteases with activity under saline conditions. Secreted proteases hydrolysed preferentially polar uncharged residues (Y and N) and positively charged groups (R). Phenylmethylsulfonyl fluoride and ethylenediaminetetraacetic acid inhibited the proteins, a characteristic of serine (AC 01 e 02) and metalloproteases (AC 52). All selected strains belonged to Streptomyces genera. In summary, actinomycete strains with halophilic proteolytic abilities were selected, which improve possibilities for their use in detergent formulations, food processing, waste management and industrial bioconversion. It is important to highlight that this is the first report using FRET libraries for proteolytic screening from Caatinga and Atlantic Forest actinobacteria.
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Affiliation(s)
- Marghuel A Vieira Silveira
- Laboratory of Biochemistry, Department of Biophysics, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Saara M Batista Dos Santos
- Laboratory of Biochemistry and Enzymology, Institute of Pharmacology and Molecular Biology, Department of Biophysics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Brazil
| | - Débora Noma Okamoto
- Laboratory of Health and Environment Sciences, Department of Pharmaceutical Sciences, Universidade Federal de São Paulo, Diadema, Brazil
| | - Itamar Soares de Melo
- Laboratory of Environment Microbiology, Brazilian Agricultural Research Corporation, EMBRAPA Environment, Jaguariúna, Brazil
| | - Maria A Juliano
- Laboratory of Biochemistry and Enzymology, Institute of Pharmacology and Molecular Biology, Department of Biophysics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Brazil
| | - Jair Ribeiro Chagas
- Laboratory of Biochemistry and Enzymology, Institute of Pharmacology and Molecular Biology, Department of Biophysics, Escola Paulista de Medicina, Universidade Federal de São Paulo, Brazil
| | - Suzan P Vasconcellos
- Laboratory of Health and Environment Sciences, Department of Pharmaceutical Sciences, Universidade Federal de São Paulo, Diadema, Brazil
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13
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Liu S, Xie T, Huang Z, Pei X, Li S, He Y, Tong Y, Liu G. Systematically investigating the fluorescent signal readout of CRISPR-Cas12a for highly sensitive SARS-CoV-2 detection. SENSORS AND ACTUATORS. B, CHEMICAL 2022; 373:132746. [PMID: 36212739 PMCID: PMC9527496 DOI: 10.1016/j.snb.2022.132746] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/17/2022] [Accepted: 09/25/2022] [Indexed: 05/31/2023]
Abstract
The CRISPR/Cas system is widely used for molecular diagnostics after the discovery of trans-cleavage activity, especially now with the COVID-19 outbreak. However, the majority of contemporary trans-cleavage activity-based CRISPR/Cas biosensors exploited standard single-strand DNA (ssDNA) reporters, which were based on the FRET principle from pioneering research. An in-depth comparison and understanding of various fluorescent readout types are essential to facilitate the outstanding analytical performance of CRISPR probes. We investigated various types of fluorescent reporters of Cas12a comprehensively. Results show that trans-cleavage of Cas12a is not limited to ssDNA and dsDNA reporters, but can be extended to molecular beacons (MB). And MB reporters can achieve superior analytical performance compared with ssDNA and ds DNA reporters at the same conditions. Accordingly, we developed a highly-sensitive SARS-CoV-2 detection with the sensitivity as low as 100 fM were successfully achieved without amplification strategy. The model target of ORF1a could robustly identify the current widespread emerging SARS-CoV-2 variants. A real coronavirus GX/P2V instead of SARS-CoV-2 were chosen for practical application validation. And a minimum of 27 copies/mL was achieved successfully. This inspiration can also be applied to other Cas proteins with trans-cleavage activity, which provides new perspectives for simple, highly-sensitive and universal molecular diagnosis in various applications.
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Affiliation(s)
- Sitong Liu
- College of Chemistry and Materials Engineering and Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing 100048, PR China
| | - Tie Xie
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China
| | - Zhaohe Huang
- College of Chemistry and Materials Engineering and Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing 100048, PR China
| | - Xiaojing Pei
- College of Chemistry and Materials Engineering and Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing 100048, PR China
| | - Shujing Li
- College of Chemistry and Materials Engineering and Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing 100048, PR China
| | - Yifan He
- College of Chemistry and Materials Engineering and Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing 100048, PR China
| | - Yigang Tong
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China
| | - Guoqi Liu
- Biotecnovo (Beijing) Co.,LTD, Beijing Economic and Technological Development Zone, Beijing, PR China
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14
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Suzuki M, Shindo Y, Yamanaka R, Oka K. Live imaging of apoptotic signaling flow using tunable combinatorial FRET-based bioprobes for cell population analysis of caspase cascades. Sci Rep 2022; 12:21160. [PMID: 36476686 PMCID: PMC9729311 DOI: 10.1038/s41598-022-25286-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Understanding cellular signaling flow is required to comprehend living organisms. Various live cell imaging tools have been developed but challenges remain due to complex cross-talk between pathways and response heterogeneities among cells. We have focused on multiplex live cell imaging for statistical analysis to address the difficulties and developed simple multiple fluorescence imaging system to quantify cell signaling at single-cell resolution using Förster Resonance Energy Transfer (FRET)-based chimeric molecular sensors comprised of fluorescent proteins and dyes. The dye-fluorescent protein conjugate is robust for a wide selection of combinations, facilitating rearrangement for coordinating emission profile of molecular sensors to adjust for visualization conditions, target phenomena, and simultaneous use. As the molecular sensor could exhibit highly sensitive in detection for protease activity, we customized molecular sensor of caspase-9 and combine the established sensor for caspase-3 to validate the system by observation of caspase-9 and -3 dynamics simultaneously, key signaling flow of apoptosis. We found cumulative caspase-9 activity rather than reaction rate inversely regulated caspase-3 execution times for apoptotic cell death. Imaging-derived statistics were thus applied to discern the dominating aspects of apoptotic signaling unavailable by common live cell imaging and proteomics protein analysis. Adopted to various visualization targets, the technique can discriminate between rivalling explanations and should help unravel other protease involved signaling pathways.
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Affiliation(s)
- Miho Suzuki
- grid.263023.60000 0001 0703 3735Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, Saitama, 338-8570 Japan
| | - Yutaka Shindo
- grid.26091.3c0000 0004 1936 9959Department of Bioscience and Informatics, Faculty of Science and Technology, Keio University, Kanagawa, 223-0061 Japan
| | - Ryu Yamanaka
- grid.469470.80000 0004 0617 5071Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University, Yamaguchi, 756-0884 Japan
| | - Kotaro Oka
- grid.26091.3c0000 0004 1936 9959Department of Bioscience and Informatics, Faculty of Science and Technology, Keio University, Kanagawa, 223-0061 Japan ,grid.412019.f0000 0000 9476 5696Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, 80708 Taiwan ,grid.5290.e0000 0004 1936 9975Waseda Research Institute for Science and Engineering, Waseda University, Tokyo, 169-8555 Japan
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15
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Shen Y, Nie C, Wei Y, Zheng Z, Xu ZL, Xiang P. FRET-based innovative assays for precise detection of the residual heavy metals in food and agriculture-related matrices. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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16
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Emerging biosensors to detect aflatoxin M1 in milk and dairy products. Food Chem 2022; 398:133848. [DOI: 10.1016/j.foodchem.2022.133848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/17/2022] [Accepted: 07/31/2022] [Indexed: 11/23/2022]
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17
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Imani M, Mohajeri N, Rastegar M, Zarghami N. Synthesis and Characterization of N-rich Fluorescent Bio-dots as a Reporter in the Design of Dual-labeled FRET Probe for TaqMan PCR: a Feasibility Study. Biotechnol Appl Biochem 2022; 70:645-658. [PMID: 35900086 DOI: 10.1002/bab.2387] [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: 04/17/2022] [Accepted: 07/12/2022] [Indexed: 11/07/2022]
Abstract
DNA-based analytical techniques have provided an advantageous sensing assay in the realm of biotechnology. Bio-inspired fluorescent nanodots are a novel type of biological staining agent with excellent optical properties widely used for cellular imaging and diagnostics. In the present research, we successfully synthesized bio-dots with excellent optical properties and high-quantum yield from DNA sodium salt through the hydrothermal method. We conjugated the bio-dots with 3' Eclipse® Dark Quencher (Eclipse) labeled single strand oligodeoxyribonucleotide according to carbodiimide chemistry, to design a fluorescence resonance energy transfer (FRET) probe. The results confirmed the prosperous synthesis and surface functionalization of the bio-dot. Analysis of size, zeta potential, and FTIR spectroscopy verified successful bioconjugation of the bio-dots with probes. UV-Visibility analysis and fluorescence intensity profile of the bio-dot and bio-dot@probes represented a concentration-dependent quenching of fluorescent signal of bio-dot by Eclipse after probe conjugation. The results demonstrated that TaqMan PCR was not feasible using the designed bio-dot@probes. Our results indicated that bio-dot can be used as an efficient fluorescent tag in the design of fluorescently labeled oligonucleotides with high biocompatibility and optical features. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Mahsa Imani
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nasrin Mohajeri
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mojgan Rastegar
- Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Nosratollah Zarghami
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Medical Biochemistry, Faculty of Medicine, Istanbul Aydin University, Istanbul, Turkey
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18
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Bardajee GR, Zamani M, Sharifi M, Rezanejad H, Motallebi M. Rapid and Highly Sensitive Detection of Target DNA Related to COVID-19 Virus With a Fluorescent Bio-conjugated Probe via a FRET Mechanism. J Fluoresc 2022; 32:1959-1967. [PMID: 35781766 DOI: 10.1007/s10895-022-02992-5] [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: 12/15/2021] [Accepted: 05/31/2022] [Indexed: 10/17/2022]
Abstract
A novel cyanine 3 (Cy3)-based bio-conjugated sensor has been developed to detect target DNA or extracted RNA from COVID -19 samples using the fluorescence resonance energy transfer (FRET) experiment. A special sequence of the COVID -19 genome was selected as a complementary DNA (target DNA) part. The opposite chain of this target sequence was designed in 2 parts; one part was attached to the Cy3 organic dye (capture DNA or Cy3- DNA), and the other part was attached to the BHQ2 molecule (quencher DNA or BHQ2- DNA). The Cy3 molecule acts as a donor pair, and BHQ2 acts as an acceptor pair in the FRET experiment. The capture DNA and quencher DNA can form a sandwiched complex in the presence of target DNA. The formation of the entitled sandwiched hybrid causes the decrement of emission intensity of the Cy3 donor in bio-conjugated Cy3-DNA via energy transfer from Cy3 (as a donor) to BHQ2 (as an acceptor). Indeed, in the presence of non-complementary DNA, the pairing of DNA strands does not occur, the FRET phenomenon does not exist, and therefore fluorescence intensity of Cy3 does not decrease. Moreover, this biosensor was successfully applied to analyze real samples containing extracted RNA of COVID -19 prepared for the reverse transcriptase-polymerase chain reaction (RT-PCR) test, and the results were promising.
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Affiliation(s)
| | - Mohammadreza Zamani
- Department of Plant Biotechnology, National Institute for Genetic Engineering and Biotechnology (NIGEB), Tehran, 14155-6343, PO BOX, Iran
| | - Mahdieh Sharifi
- Department of Chemistry, Payame Noor University, Tehran, PO BOX 19395-3697, Iran
| | - Habib Rezanejad
- Department of Biological Sciences, MacEwan University, Edmonton, Canada
| | - Mostafa Motallebi
- Department of Plant Biotechnology, National Institute for Genetic Engineering and Biotechnology (NIGEB), Tehran, 14155-6343, PO BOX, Iran
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19
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Bankole OE, Verma DK, Chávez González ML, Ceferino JG, Sandoval-Cortés J, Aguilar CN. Recent trends and technical advancements in biosensors and their emerging applications in food and bioscience. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101695] [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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20
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Vesga-Castro C, Aldazabal J, Vallejo-Illarramendi A, Paredes J. Contractile force assessment methods for in vitro skeletal muscle tissues. eLife 2022; 11:e77204. [PMID: 35604384 PMCID: PMC9126583 DOI: 10.7554/elife.77204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/27/2022] [Indexed: 02/06/2023] Open
Abstract
Over the last few years, there has been growing interest in measuring the contractile force (CF) of engineered muscle tissues to evaluate their functionality. However, there are still no standards available for selecting the most suitable experimental platform, measuring system, culture protocol, or stimulation patterns. Consequently, the high variability of published data hinders any comparison between different studies. We have identified that cantilever deflection, post deflection, and force transducers are the most commonly used configurations for CF assessment in 2D and 3D models. Additionally, we have discussed the most relevant emerging technologies that would greatly complement CF evaluation with intracellular and localized analysis. This review provides a comprehensive analysis of the most significant advances in CF evaluation and its critical parameters. In order to compare contractile performance across experimental platforms, we have used the specific force (sF, kN/m2), CF normalized to the calculated cross-sectional area (CSA). However, this parameter presents a high variability throughout the different studies, which indicates the need to identify additional parameters and complementary analysis suitable for proper comparison. We propose that future contractility studies in skeletal muscle constructs report detailed information about construct size, contractile area, maturity level, sarcomere length, and, ideally, the tetanus-to-twitch ratio. These studies will hopefully shed light on the relative impact of these variables on muscle force performance of engineered muscle constructs. Prospective advances in muscle tissue engineering, particularly in muscle disease models, will require a joint effort to develop standardized methodologies for assessing CF of engineered muscle tissues.
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Affiliation(s)
- Camila Vesga-Castro
- University of Navarra, Tecnun School of Engineering, Manuel de LardizábalSan SebastianSpain
- University of Navarra, Biomedical Engineering Center, Campus UniversitarioPamplonaSpain
- Group of Neurosciences, Department of Pediatrics, UPV/EHU, Hospital Donostia - IIS BiodonostiaSan SebastianSpain
| | - Javier Aldazabal
- University of Navarra, Tecnun School of Engineering, Manuel de LardizábalSan SebastianSpain
- University of Navarra, Biomedical Engineering Center, Campus UniversitarioPamplonaSpain
| | - Ainara Vallejo-Illarramendi
- Group of Neurosciences, Department of Pediatrics, UPV/EHU, Hospital Donostia - IIS BiodonostiaSan SebastianSpain
- CIBERNED, Instituto de Salud Carlos III, Ministry of Science, Innovation, and UniversitiesMadridSpain
| | - Jacobo Paredes
- University of Navarra, Tecnun School of Engineering, Manuel de LardizábalSan SebastianSpain
- University of Navarra, Biomedical Engineering Center, Campus UniversitarioPamplonaSpain
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21
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Bayraktutan T, Gür B, Onganer Y. A new FRET-based functional chemosensor for fluorometric detection of Fe3+and its validation through in silico studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Bhattacharyya N, Singh S, Mukherjee D, Das N, Chatterjee A, Adhikari A, Mondal S, Mondal P, Mallick AK, Pal SK. Picosecond-resolved fluorescence resonance energy transfer (FRET) in diffuse reflectance spectroscopy explores biologically relevant hidden molecular contacts in a non-invasive way. Phys Chem Chem Phys 2022; 24:6176-6184. [PMID: 35229087 DOI: 10.1039/d1cp05159h] [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 potentiality of Förster resonance energy transfer (FRET) for studying molecular interactions inside biological tissues with improved spatial (Angström) and temporal (picosecond) resolution is well established. On the other hand, the efficacy of diffuse reflectance spectroscopy (DRS) that uses optical radiation in order to determine physiological parameters including haemoglobin, and oxygen saturation is well known. Here we have made an attempt to combine diffuse reflectance spectroscopy (DRS) with picosecond-resolved FRET in order to show improvement in the exploration of molecular contacts in biological tissue models. We define the technique as ultrafast time-resolved diffuse reflectance spectroscopy (UTRDRS). The illuminated photon of the fluorophore from the surface of the tissue-mimicking layers carries the hidden information of the molecular contact. In order to investigate the validation of the Kubelka-Munk (KM) formulism for the developed UTRDRS technique in tissue phantoms, we have studied the propagation of incandescent and picosecond-laser light through several layers of cellulose membranes. While picosecond-resolved FRET in the diffuse reflected light confirms the hidden nano-contact (4.6 nm) of two different dye layers (8-anilino-1-naphthalenesulfonic acid and Nile blue), high-resolution optical microscopy on the cross-section of the layers reveals the proximity and contacts of the layers with limited spatial resolution (∼300 nm). We have also investigated two biologically relevant molecules, namely carboxyfluorescein and haemoglobin, in tissue phantom layers in order to show the efficacy of the UTRDRS technique. Overall, our studies based on UTRDRS in tissue mimicking layers may have potential applications in non-invasive biomedical diagnosis for patients suffering from skin diseases.
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Affiliation(s)
- Neha Bhattacharyya
- Department of Radio Physics and Electronics, University of Calcutta, Kolkata 700009, India.,Technical Research Centre, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India.
| | - Soumendra Singh
- Technical Research Centre, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India.
| | - Dipanjan Mukherjee
- Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Nairit Das
- Department of Electrical Engineering, Indian Institute of Technology, Kharagpur 721302, India
| | - Arka Chatterjee
- Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Aniruddha Adhikari
- Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Susmita Mondal
- Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
| | - Pulak Mondal
- Department of Radio Physics and Electronics, University of Calcutta, Kolkata 700009, India
| | - Asim Kumar Mallick
- Department of Paediatrics, Nil Ratan Sircar Medical College and Hospital, Kolkata 700014, India
| | - Samir Kumar Pal
- Technical Research Centre, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India. .,Department of Chemical, Biological and Macromolecular Sciences, S.N. Bose National Centre for Basic Sciences, Kolkata 700106, India
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23
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Biomimetic Citrate-Coated Luminescent Apatite Nanoplatforms for Diclofenac Delivery in Inflammatory Environments. NANOMATERIALS 2022; 12:nano12030562. [PMID: 35159907 PMCID: PMC8838995 DOI: 10.3390/nano12030562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/24/2022] [Accepted: 02/02/2022] [Indexed: 11/16/2022]
Abstract
Luminescent nanoparticles are innovative tools for medicine, allowing the imaging of cells and tissues, and, at the same time, carrying and releasing different types of molecules. We explored and compared the loading/release ability of diclofenac (COX-2 antagonist), in both undoped- and luminescent Terbium3+ (Tb3+)-doped citrate-coated carbonated apatite nanoparticles at different temperatures (25, 37, 40 °C) and pHs (7.4, 5.2). The cytocompatibility was evaluated on two osteosarcoma cell lines and primary human osteoblasts. Biological effects of diclofenac-loaded-nanoparticles were monitored in an in vitro osteoblast’s cytokine–induced inflammation model by evaluating COX-2 mRNA expression and production of PGE2. Adsorption isotherms fitted the multilayer Langmuir-Freundlich model. The maximum adsorbed amounts at 37 °C were higher than at 25 °C, and particularly when using the Tb3+ -doped particles. Diclofenac-release efficiencies were higher at pH 5.2, a condition simulating a local inflammation. The luminescence properties of diclofenac-loaded Tb3+ -doped particles were affected by pH, being the relative luminescence intensity higher at pH 5.2 and the luminescence lifetime higher at pH 7.4, but not influenced either by the temperature or by the diclofenac-loaded amount. Both undoped and Tb3+-doped nanoparticles were cytocompatible. In addition, diclofenac release increased COX-2 mRNA expression and decreased PGE2 production in an in vitro inflammation model. These findings evidence the potential of these nanoparticles for osteo-localized delivery of anti-inflammatory drugs and the possibility to localize the inflammation, characterized by a decrease in pH, by changes in luminescence.
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24
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Li W, Zhou J, Maccaferri N, Krahne R, Wang K, Garoli D. Enhanced Optical Spectroscopy for Multiplexed DNA and Protein-Sequencing with Plasmonic Nanopores: Challenges and Prospects. Anal Chem 2022; 94:503-514. [PMID: 34974704 PMCID: PMC8771637 DOI: 10.1021/acs.analchem.1c04459] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Wang Li
- State
Key Laboratory of Analytical Chemistry for Life Science School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, P. R. China
| | - Juan Zhou
- State
Key Laboratory of Analytical Chemistry for Life Science School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, P. R. China
| | - Nicolò Maccaferri
- Department
of Physics and Materials Science, University
of Luxembourg, L-1511 Luxembourg, Luxembourg
- Department
of Physics, Umeå University, Linnaeus väg 20, SE-90736 Umeå, Sweden
| | - Roman Krahne
- Istituto
Italiano di Tecnologia, Optoelectronics
Research Line, Morego
30, I-16163 Genova, Italy
| | - Kang Wang
- State
Key Laboratory of Analytical Chemistry for Life Science School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, P. R. China
| | - Denis Garoli
- Istituto
Italiano di Tecnologia, Optoelectronics
Research Line, Morego
30, I-16163 Genova, Italy
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25
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Spectrally multiplexed assay using gap enhanced nanoparticle for detection of a myocardial infarction biomarker panel. Anal Chim Acta 2022; 1198:339562. [DOI: 10.1016/j.aca.2022.339562] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 01/21/2023]
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Trusova V, Tarabara U, Zhytniakivska O, Vus K, Gorbenko G. Fӧrster resonance energy transfer analysis of amyloid state of proteins. BBA ADVANCES 2022; 2:100059. [PMID: 37082586 PMCID: PMC10074846 DOI: 10.1016/j.bbadva.2022.100059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022] Open
Abstract
The Förster resonance energy transfer (FRET) is a well-established and versatile spectroscopic technique extensively used for exploring a variety of biomolecular interactions and processes. The present review is intended to cover the main results of our FRET studies focused on amyloid fibrils, a particular type of disease-associated protein aggregates. Based on the examples of several fibril-forming proteins including insulin, lysozyme and amyloidogenic variants of N-terminal fragment of apolipoprotein A-I, it was demonstrated that: (i) the two- and three-step FRET with the classical amyloid marker Thioflavin T as an input donor has a high amyloid-sensing potential and can be used to refine the amyloid detection assays; (ii) the intermolecular time-resolved and single-molecule pulse interleaved excitation FRET can give quantitative information on the nucleation of amyloid fibrils; (iii) FRET between the membrane fluorescent probes and protein-associated intrinsic or extrinsic fluorophores is suitable for monitoring the membrane binding of fibrillar proteins, exploring their location relative to lipid-water interface and restructuring on a lipid matrix; (iv) the FRET-based distance estimation between fibril-bound donor and acceptor fluorophores can serve as one of the verification criteria upon structural modeling of amyloid fibrils.
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Castro RC, Saraiva MLM, Santos JL, Ribeiro DS. Multiplexed detection using quantum dots as photoluminescent sensing elements or optical labels. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214181] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Matveeva K, Zyubin A, Demishkevich E, Rafalskiy V, Moiseeva E, Kon I, Kundalevich A, Butova V, Samusev I. Spectral and time-resolved photoluminescence of human platelets doped with platinum nanoparticles. PLoS One 2021; 16:e0256621. [PMID: 34469464 PMCID: PMC8409683 DOI: 10.1371/journal.pone.0256621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/10/2021] [Indexed: 11/19/2022] Open
Abstract
This paper describes a detailed study of spectral and time-resolved photoprocesses in human platelets and their complexes with platinum (Pt) nanoparticles (NPs). Fluorescence, quantum yield, and platelet amino acid lifetime changes in the presence and without femtosecond ablated platinum NPs have been studied. Fluorescence spectroscopy analysis of main fluorescent amino acids and their residues (tyrosine (Tyr), tryptophan (Trp), and phenylalanine (Phe)) belonging to the platelet membrane have been performed. The possibility of energy transfer between Pt NPs and the platelet membrane has been revealed. Förster Resonance Energy Transfer (FRET) model was used to perform the quantitative evaluation of energy transfer parameters. The prospects of Pt NPs usage deals with quenching-based sensing for pathology's based on platelet conformations as cardiovascular diseases have been demonstrated.
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Affiliation(s)
- Karina Matveeva
- REC «Fundamental and Applied Photonics, Nanophotonics», Immanuel Kant Baltic Federal University, Kaliningrad, Kaliningrad region, Russia
| | - Andrey Zyubin
- REC «Fundamental and Applied Photonics, Nanophotonics», Immanuel Kant Baltic Federal University, Kaliningrad, Kaliningrad region, Russia
| | - Elizaveta Demishkevich
- REC «Fundamental and Applied Photonics, Nanophotonics», Immanuel Kant Baltic Federal University, Kaliningrad, Kaliningrad region, Russia
| | - Vladimir Rafalskiy
- REC «Fundamental and Applied Photonics, Nanophotonics», Immanuel Kant Baltic Federal University, Kaliningrad, Kaliningrad region, Russia
| | - Ekaterina Moiseeva
- REC «Fundamental and Applied Photonics, Nanophotonics», Immanuel Kant Baltic Federal University, Kaliningrad, Kaliningrad region, Russia
| | - Igor Kon
- REC «Fundamental and Applied Photonics, Nanophotonics», Immanuel Kant Baltic Federal University, Kaliningrad, Kaliningrad region, Russia
| | - Anna Kundalevich
- REC «Fundamental and Applied Photonics, Nanophotonics», Immanuel Kant Baltic Federal University, Kaliningrad, Kaliningrad region, Russia
| | - Viktoria Butova
- REC «Fundamental and Applied Photonics, Nanophotonics», Immanuel Kant Baltic Federal University, Kaliningrad, Kaliningrad region, Russia
| | - Ilia Samusev
- REC «Fundamental and Applied Photonics, Nanophotonics», Immanuel Kant Baltic Federal University, Kaliningrad, Kaliningrad region, Russia
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Choi JH, Ha T, Shin M, Lee SN, Choi JW. Nanomaterial-Based Fluorescence Resonance Energy Transfer (FRET) and Metal-Enhanced Fluorescence (MEF) to Detect Nucleic Acid in Cancer Diagnosis. Biomedicines 2021; 9:928. [PMID: 34440132 PMCID: PMC8392676 DOI: 10.3390/biomedicines9080928] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/25/2021] [Accepted: 07/28/2021] [Indexed: 12/27/2022] Open
Abstract
Nucleic acids, including DNA and RNA, have received prodigious attention as potential biomarkers for precise and early diagnosis of cancers. However, due to their small quantity and instability in body fluids, precise and sensitive detection is highly important. Taking advantage of the ease-to-functionality and plasmonic effect of nanomaterials, fluorescence resonance energy transfer (FRET) and metal-enhanced fluorescence (MEF)-based biosensors have been developed for accurate and sensitive quantitation of cancer-related nucleic acids. This review summarizes the recent strategies and advances in recently developed nanomaterial-based FRET and MEF for biosensors for the detection of nucleic acids in cancer diagnosis. Challenges and opportunities in this field are also discussed. We anticipate that the FRET and MEF-based biosensors discussed in this review will provide valuable information for the sensitive detection of nucleic acids and early diagnosis of cancers.
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Affiliation(s)
- Jin-Ha Choi
- School of Chemical Engineering, Jeonbuk National University, Jeonju 54896, Korea;
| | - Taehyeong Ha
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea; (T.H.); (M.S.)
| | - Minkyu Shin
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea; (T.H.); (M.S.)
| | - Sang-Nam Lee
- Uniance Gene Inc., 1107 Teilhard Hall, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Korea
| | - Jeong-Woo Choi
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea; (T.H.); (M.S.)
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Kaur A, Ellison M, Dhakal S. MASH-FRET: A Simplified Approach for Single-Molecule Multiplexing Using FRET. Anal Chem 2021; 93:8856-8863. [PMID: 34124890 DOI: 10.1021/acs.analchem.1c00848] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Multiplexed detection has been a big motivation in biomarker analysis as it not only saves cost and labor but also improves the reliability of diagnosis. Among the many approaches for multiplexed detection, fluorescence resonance energy transfer (FRET)-based multiplexing is gaining popularity particularly due to its low background and quantitative nature. Although several FRET-based approaches have been developed for multiplexing, they require either multiple FRET pairs in combination with multiple excitation sources or complicated algorithms to accurately assign signals for individual FRET pairs. Therefore, the need for multiple FRET pairs and multiple excitation sources not only complicates the experimental design but also increases the cost and labor. In this regard, multiplexed sensing by tuning the interdye distance of a single FRET pair could be an ideal solution if identification of multiple FRET efficiencies in a single imaging is possible. Here, implementing a program called MASH-FRET, we evaluated the rigor and capability of this program in identifying seemingly overlapped FRET populations obtained from a multiplexed detection experiment using a single FRET pair. Through MASH-FRET-enabled bootstrap-based analysis of FRET data (also called BOBA-FRET), we demonstrated that the resolution and statistical confidence of the poorly resolved or even unresolved FRET populations can be readily determined. Using simulated FRET data, we further demonstrated that the program can easily identify FRET populations separated by ∼0.1 in mean FRET values, indicating an upper limit of ∼9-fold multiplexing without the need for complicated labeling schemes and multiexcitation sources. Therefore, this paper presents a data analysis approach on an existing platform that has a great potential to simplify the technological needs for multiplexing and to broaden the scope of FRET-based single-molecule analyses.
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Affiliation(s)
- Anisa Kaur
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Mischa Ellison
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Soma Dhakal
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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Abstract
Selective and sensitive detection of nucleic acid biomarkers is of great significance in early-stage diagnosis and targeted therapy. Therefore, the development of diagnostic methods capable of detecting diseases at the molecular level in biological fluids is vital to the emerging revolution in the early diagnosis of diseases. However, the vast majority of the currently available ultrasensitive detection strategies involve either target/signal amplification or involve complex designs. Here, using a p53 tumor suppressor gene whose mutation has been implicated in more than 50% of human cancers, we show a background-free ultrasensitive detection of this gene on a simple platform. The sensor exhibits a relatively static mid-FRET state in the absence of a target that can be attributed to the time-averaged fluorescence intensity of fast transitions among multiple states, but it undergoes continuous dynamic switching between a low- and a high-FRET state in the presence of a target, allowing a high-confidence detection. In addition to its simple design, the sensor has a detection limit down to low femtomolar (fM) concentration without the need for target amplification. We also show that this sensor is highly effective in discriminating against single-nucleotide polymorphisms (SNPs). Given the generic hybridization-based detection platform, the sensing strategy developed here can be used to detect a wide range of nucleic acid sequences enabling early diagnosis of diseases and screening genetic disorders.
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Affiliation(s)
- Anoja Megalathan
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Kalani M Wijesinghe
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Soma Dhakal
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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Wang YX, Wang DX, Wang J, Du YC, Cui YX, Tang AN, Jiang HX, Kong DM. Reversible assembly/disassembly of DNA frames and applications in logic design, ratiometric sensing and bioimaging. SENSORS AND ACTUATORS B: CHEMICAL 2021; 330:129335. [DOI: 10.1016/j.snb.2020.129335] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Wang C, Zhang W, Qian J, Wang L, Ren Y, Wang Y, Xu M, Huang X. A FRET aptasensor for sensitive detection of aflatoxin B1 based on a novel donor-acceptor pair between ZnS quantum dots and Ag nanocubes. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:462-468. [PMID: 33438701 DOI: 10.1039/d0ay02017f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Aflatoxin B1 (AFB1) is one of the most carcinogenic chemicals. A novel fluorescence resonance energy transfer (FRET) sensor based on aptamer recognition technology is proposed for the sensitive detection of AFB1 in moldy peanuts using Ag nanocubes as energy acceptors and ZnS quantum dots (QDs) as energy donors. Compared to the traditional FRET system based on an Au quencher, Ag nanocubes can not only quench the fluorescence of aptamer modified ZnS QDs, but are also inexpensive. In addition, compared with heavy metal QDs, ZnS QDs are environmentally friendly, have excellent photochemical properties, and are ideal energy donors. Without Ag nanocubes, the aptamer modified ZnS QDs emits blue fluorescence under an ultraviolet lamp. Because the emission spectrum of ZnS and the absorption spectrum of Ag nanocubes meet the requirements of FRET, the fluorescence quenching of ZnS QDs is realized. Nevertheless, with AFB1, the specific binding of aptamer and complementary chain makes the ZnS QDs break away from the Ag nanocubes, which leads to the fluorescence recovery of the ZnS QDs. Under the optimized detection conditions, the linear range of AFB1 was 5 pg mL-1 to 300 ng mL-1, and there was no obvious reaction with other similar mycotoxins. According to S/N = 3, the detection limit of AFB1 was 2.67 pg mL-1. The detection of AFB1 in peanut samples shows that the new FRET system can successfully be applied in the future to agricultural products.
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Affiliation(s)
- Chengquan Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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Hendrickson OD, Taranova NA, Zherdev AV, Dzantiev BB, Eremin SA. Fluorescence Polarization-Based Bioassays: New Horizons. SENSORS (BASEL, SWITZERLAND) 2020; 20:E7132. [PMID: 33322750 PMCID: PMC7764623 DOI: 10.3390/s20247132] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 02/06/2023]
Abstract
Fluorescence polarization holds considerable promise for bioanalytical systems because it allows the detection of selective interactions in real time and a choice of fluorophores, the detection of which the biosample matrix does not influence; thus, their choice simplifies and accelerates the preparation of samples. For decades, these possibilities were successfully applied in fluorescence polarization immunoassays based on differences in the polarization of fluorophore emissions excited by plane-polarized light, whether in a free state or as part of an immune complex. However, the results of recent studies demonstrate the efficacy of fluorescence polarization as a detected signal in many bioanalytical methods. This review summarizes and comparatively characterizes these developments. It considers the integration of fluorescence polarization with the use of alternative receptor molecules and various fluorophores; different schemes for the formation of detectable complexes and the amplification of the signals generated by them. New techniques for the detection of metal ions, nucleic acids, and enzymatic reactions based on fluorescence polarization are also considered.
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Affiliation(s)
- Olga D. Hendrickson
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia; (O.D.H.); (N.A.T.); (B.B.D.); (S.A.E.)
| | - Nadezhda A. Taranova
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia; (O.D.H.); (N.A.T.); (B.B.D.); (S.A.E.)
| | - Anatoly V. Zherdev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia; (O.D.H.); (N.A.T.); (B.B.D.); (S.A.E.)
| | - Boris B. Dzantiev
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia; (O.D.H.); (N.A.T.); (B.B.D.); (S.A.E.)
| | - Sergei A. Eremin
- A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia; (O.D.H.); (N.A.T.); (B.B.D.); (S.A.E.)
- Department of Chemical Enzymology, Chemical Faculty, M.V. Lomonosov Moscow State University, 119234 Moscow, Russia
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Castro RC, Lopes AFR, Soares JX, Ribeiro DSM, Santos JLM. Determination of atenolol based on the reversion of the fluorescence resonance energy transfer between AgInS 2 quantum dots and Au nanoparticles. Analyst 2020; 146:1004-1015. [PMID: 33295361 DOI: 10.1039/d0an01874k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The present work focused on the development of a fluorescence resonance energy transfer (FRET)-based sensing platform for the monitoring of atenolol in pharmaceutical formulations. The implemented approach involved the assembly of d-penicillamine-capped AgInS2/ZnS quantum dots (QDs), as energy donors, and gold nanoparticles (AuNPs) as acceptors and the establishment of electrostatic interaction between both capping ligands at the nanoparticle surface, which induced the inhibition of the ternary QD photoluminescence (PL). The presence of a ZnS shell around the ternary QD core and the use of cysteamine (CA) as the AuNP capping ligand, instead of the typical citrate, allowed a more efficient FRET process to occur. The ability of Cd-free ternary QDs to be used as a sensing element in FRET-based assays was demonstrated, emphasizing the advantages relative to the common Cd-based QDs, when seeking the implementation of more environmentally friendly and less toxic analytical methodologies. The influence of several β-blocker drugs on the FRET donor-acceptor assemblies was thoroughly assessed. Atenolol and nadolol caused the aggregation of CA-AuNPs via hydrogen bonding interactions which reduced the spectral overlap between the donor and acceptor, impairing the FRET process and consequently the emission of the QDs was restored. Under the optimized conditions, the obtained results exhibited a linear relationship between the QD PL recovery signal and atenolol concentration of up to 11.22 mg L-1 with a detection limit of 1.05 mg L-1. This FRET sensing platform was successfully applied in the determination of atenolol in pharmaceutical formulations with recovery values ranging from 97.4 to 104.3%.
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Affiliation(s)
- Rafael C Castro
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira no. 228, 4050-313 Porto, Portugal.
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Yan L, Zhang S, Xie Y, Mu X, Zhu J. Recent Progress in the Development of Fluorescent Probes for the Detection of Hydrazine (N2H4). Crit Rev Anal Chem 2020; 52:210-229. [DOI: 10.1080/10408347.2020.1797464] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Liqiang Yan
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi, PR China
| | - Shiqing Zhang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi, PR China
| | - Ya Xie
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi, PR China
| | - Xinyue Mu
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi, PR China
| | - Jinbiao Zhu
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi, PR China
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37
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Emerging design strategies for constructing multiplex lateral flow test strip sensors. Biosens Bioelectron 2020; 157:112168. [DOI: 10.1016/j.bios.2020.112168] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 03/18/2020] [Accepted: 03/21/2020] [Indexed: 11/18/2022]
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38
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Singh M, Watkinson M, Scanlan EM, Miller GJ. Illuminating glycoscience: synthetic strategies for FRET-enabled carbohydrate active enzyme probes. RSC Chem Biol 2020. [DOI: 10.1039/d0cb00134a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Carbohydrates are synthesised, refined and degraded by carbohydrate active enzymes. FRET is emerging as a powerful tool to monitor and quantify their activity as well as to test inhibitors as new drug candidates and monitor disease.
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Affiliation(s)
- Meenakshi Singh
- Lennard-Jones Laboratories
- School of Chemical and Physical Sciences
- Keele University
- Staffordshire
- UK
| | - Michael Watkinson
- Lennard-Jones Laboratories
- School of Chemical and Physical Sciences
- Keele University
- Staffordshire
- UK
| | - Eoin M. Scanlan
- School of Chemistry and Trinity Biomedical Sciences Institute
- Trinity College Dublin
- Dublin 2
- Ireland
| | - Gavin J. Miller
- Lennard-Jones Laboratories
- School of Chemical and Physical Sciences
- Keele University
- Staffordshire
- UK
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