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Dargah MM, Youseftabar-Miri L, Divsar F, Hosseinjani-Pirdehi H, Mahani M, Bakhtiari S, Montazar L. Triplex hairpin oligosensor for ultrasensitive determination of miRNA-155 as a cancer marker using Si quantum dots and Au nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 322:124750. [PMID: 39003825 DOI: 10.1016/j.saa.2024.124750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 06/14/2024] [Accepted: 06/26/2024] [Indexed: 07/16/2024]
Abstract
In this study, a new triplex hairpin oligosensor was developed for the determination of a breast cancer biomarker using silicon quantum dots (Si QD) (λex = 370 nm, λem = 482 nm) as donor and gold nanoparticles (GNP) as an acceptor in a FRET (fluorescence resonance energy transfer) mechanism. In the triplex hairpin oligosensor, a triplex-forming oligonucleotide (TFO) labeled with Si QD and a single-strand DNA labeled with GNP form a hairpin shape with a triplex structure at the hairpin stem. In a turn-on mechanism, the triplex hairpin stem is opened in the presence of sequence-specific miRNA-155 which leads to the release of the Si QD-labeled TFO probe and recovery of the fluorescence signal. About 80 % of the fluorescence intensity of the Si QD-TFO is quenched in the triplex hairpin structure of the oligosensor and in the presence of 800 pM miRNA-155, the fluorescence signal recovered to 57.7 % of its initial value. The LOD of about 10 pM was obtained. The designed triplex-based biosensor can discriminate concentrations of breast cancer biomarkers with high selectivity.
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Affiliation(s)
- Maryam Mohamadi Dargah
- Active Pharmaceutical Ingredients Research Center (APIRC), Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Leila Youseftabar-Miri
- Department of Organic Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Faten Divsar
- Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-3697, Tehran, Iran.
| | | | - Mohamad Mahani
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, Kerman, Iran
| | - Shadi Bakhtiari
- Active Pharmaceutical Ingredients Research Center (APIRC), Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Leila Montazar
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, Kerman, Iran
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2
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Jiang M, Wang Y, Li J, Gao X. Review of carbon dot-hydrogel composite material as a future water-environmental regulator. Int J Biol Macromol 2024; 269:131850. [PMID: 38670201 DOI: 10.1016/j.ijbiomac.2024.131850] [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: 02/05/2024] [Revised: 03/23/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
As water pollution and scarcity pose severe threats to the sustainable progress of human society, it is important to develop a method or materials that can accurately and efficiently detect pollutants and purify aquatic environments or exploit marine resources. The compositing of photoluminescent and hydrophilic carbon dots (CDs) with hydrogels bearing three-dimensional networks to form CD-hydrogel composites to protect aquatic environments is a "win-win" strategy. Herein, the feasibility of the aforementioned method has been demonstrated. This paper reviews the recent progress of CD-hydrogel materials used in aquatic environments. First, the synthesis methods for these composites are discussed, and then, the composites are categorized according to different methods of combining the raw materials. Thereafter, the progress in research on CD-hydrogel materials in the field of water quality detection and purification is reviewed in terms of the application of the mechanisms. Finally, the current challenges and prospects of CD-hydrogel materials are described. These results are expected to provide insights into the development of CD-hydrogel composites for researchers in this field.
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Affiliation(s)
- Minghao Jiang
- School of Water Conservancy and Civil Engineering, College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, PR China
| | - Yong Wang
- School of Water Conservancy and Civil Engineering, College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, PR China.
| | - Jichuan Li
- School of Water Conservancy and Civil Engineering, College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, PR China
| | - Xing Gao
- College of Sports and Human Sciences, Post-doctoral Mobile Research Station, Graduate School, Harbin Sport University, Harbin 150008, PR China.
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3
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Li D, Huang Q, Wang K. Exonuclease III-propelled DNAzyme walker: an electrochemical strategy for microRNA diagnostics. Mikrochim Acta 2024; 191:173. [PMID: 38436735 DOI: 10.1007/s00604-024-06208-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/09/2024] [Indexed: 03/05/2024]
Abstract
MicroRNA detection is crucial for early infectious disease diagnosis and rapid cancer screening. However, conventional techniques like reverse transcription-quantitative polymerase chain reaction, requiring specialized training and intricate procedures, are less suitable for point-of-care analyses. To address this, we've developed a straightforward amplifier based on an exonuclease III (exo III)-propelled DNAzyme walker for sensitive and selective microRNA detection. This amplifier employs a specially designed hairpin probe with two exposed segments for strand recognition. Once the target microRNA is identified by the hairpin's extended single-strand DNA, exo III initiates its digestion, allowing microRNA regeneration and subsequent hairpin probe digestion cycles. This cyclical process produces a significant amount of DNAzyme, leading to a marked reduction in electrochemical signals. The biosensor exhibits a detection range from 10 fM to 100 pM and achieves a detection limit of 5 fM (3σ criterion). Importantly, by integrating an "And logic gate," our system gains the capacity for simultaneous diagnosis of multiple microRNAs, enhancing its applicability in RNA-based disease diagnostics.
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Affiliation(s)
- Dengke Li
- Department of Rehabilitation Medicine, the Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, 223300, China.
| | - Qiuyan Huang
- Department of Chemistry, New York University, New York, NY, 10003, USA
| | - Kun Wang
- Department of Physics, New York University, New York, NY, 10003, USA
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Ratre P, Nazeer N, Soni N, Kaur P, Tiwari R, Mishra PK. Smart carbon-based sensors for the detection of non-coding RNAs associated with exposure to micro(nano)plastics: an artificial intelligence perspective. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8429-8452. [PMID: 38182954 DOI: 10.1007/s11356-023-31779-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 12/26/2023] [Indexed: 01/07/2024]
Abstract
Micro(nano)plastics (MNPs) are pervasive environmental pollutants that individuals eventually consume. Despite this, little is known about MNP's impact on public health. In this article, we assess the evidence for potentially harmful consequences of MNPs in the human body, concentrating on molecular toxicity and exposure routes. Since MNPs are present in various consumer products, foodstuffs, and the air we breathe, exposure can occur through ingestion, inhalation, and skin contact. MNPs exposure can cause mitochondrial oxidative stress, inflammatory lesions, and epigenetic modifications, releasing specific non-coding RNAs in circulation, which can be detected to diagnose non-communicable diseases. This article examines the most fascinating smart carbon-based nanobiosensors for detecting circulating non-coding RNAs (lncRNAs and microRNAs). Carbon-based smart nanomaterials offer many advantages over traditional methods, such as ease of use, sensitivity, specificity, and efficiency, for capturing non-coding RNAs. In particular, the synthetic methods, conjugation chemistries, doping, and in silico approach for the characterization of synthesized carbon nanodots and their adaptability to identify and measure non-coding RNAs associated with MNPs exposure is discussed. Furthermore, the article provides insights into the use of artificial intelligence tools for designing smart carbon nanomaterials.
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Affiliation(s)
- Pooja Ratre
- Department of Environmental Biotechnology, Genetics & Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Nazim Nazeer
- Department of Environmental Biotechnology, Genetics & Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Nikita Soni
- Department of Environmental Biotechnology, Genetics & Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Prasan Kaur
- Department of Environmental Biotechnology, Genetics & Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Rajnarayan Tiwari
- Department of Environmental Biotechnology, Genetics & Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Pradyumna Kumar Mishra
- Department of Environmental Biotechnology, Genetics & Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India.
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5
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Lee B, Gries K, Valimukhametova AR, McKinney RL, Gonzalez-Rodriguez R, Topkiran UC, Coffer J, Akkaraju GR, Naumov AV. In Vitro Prostate Cancer Treatment via CRISPR-Cas9 Gene Editing Facilitated by Polyethyleneimine-Derived Graphene Quantum Dots. ADVANCED FUNCTIONAL MATERIALS 2023; 33:2305506. [PMID: 38144446 PMCID: PMC10746168 DOI: 10.1002/adfm.202305506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Indexed: 12/26/2023]
Abstract
CRISPR-Cas9 is a programmable gene editing tool with a promising potential for cancer gene therapy. This therapeutic function is enabled in the present work via the non-covalent delivery of CRISPR ribonucleic protein (RNP) by cationic glucosamine/PEI-derived graphene quantum dots (PEI-GQD) that aid in overcoming physiological barriers and tracking genes of interest. PEI-GQD/RNP complex targeting the TP53 mutation overexpressed in ~50% of cancers successfully produces its double-stranded breaks in solution and in PC3 prostate cancer cells. Restoring this cancer "suicide" gene can promote cellular repair pathways and lead to cancer cell apoptosis. Its repair to the healthy form performed by simultaneous PEI-GQD delivery of CRISPR RNP and a gene repair template leads to a successful therapeutic outcome: 40% apoptotic cancer cell death, while having no effect on non-cancerous HeK293 cells. The translocation of PEI-GQD/RNP complex into PC3 cell cytoplasm is tracked via GQD intrinsic fluorescence, while EGFP-tagged RNP is detected in the cell nucleus, showing the successful detachment of the gene editing tool upon internalization. Using GQDs as non-viral delivery and imaging agents for CRISPR-Cas9 RNP sets the stage for image-guided cancer-specific gene therapy.
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Affiliation(s)
- Bong Lee
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX
| | - Klara Gries
- Department of Chemistry and Biochemistry, Heidelberg University, Heidelberg, Germany
| | | | - Ryan L. McKinney
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX
| | | | - Ugur C. Topkiran
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX
| | - Jeffery Coffer
- Department of Chemistry and Biochemistry, Texas Christian University, Fort Worth, TX
| | | | - Anton V. Naumov
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX
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6
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Garg R, Prasad D. Carbon dots and their interactions with recognition molecules for enhanced nucleic acid detection. Biochem Biophys Res Commun 2023; 680:93-107. [PMID: 37738905 DOI: 10.1016/j.bbrc.2023.09.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/04/2023] [Accepted: 09/14/2023] [Indexed: 09/24/2023]
Abstract
Carbon Dots (C-dots) have exceptional fluorescence and incident wavelength alteration capabilities because of their π-π* electron transitions between the surface-trapped charges. They have clear, considerate and cost-effective applications in the domain of bio-sensing, optical imaging, medical diagnostics, fluorescence chemotherapy, forensics, and environmentology. Advances in the production process of C-dots can change their optical and chemical characteristics, allowing them to interact with a variety of chemicals and ions that can be exploited for the DNA detection in point-of-care devices. In the current scenario of pathogenic disease prevention, metagenomics and industrial processes, alternative genetic material identification is critical. This review focuses on the existing carbon dots-based DNA detection technologies and their interactions with other components such as metallic salts, dyes, and biological chemicals based on their surface charge distribution (positive or negative) employed in the DNA diagnostic devices and biosensors with their operating mechanism regarding their target component. These intriguing scientific discoveries and technologies will be extensively examined to translate them into real-world solutions which will have a significant societal and economic impact on overall well-being and innovation.
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Affiliation(s)
- Rishabh Garg
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Dinesh Prasad
- Department of Bioengineering and Biotechnology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India.
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7
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Mahani M, Montazer L, Khakbaz F, Divsar F, Yoosefian M. Photothermal performance of a novel carbon dot and its conjugate with disulfiram for prostate cancer PC3 cell therapy. Nanomedicine (Lond) 2023; 18:1703-1718. [PMID: 37965936 DOI: 10.2217/nnm-2023-0195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023] Open
Abstract
Aim: To develop and employ a copper, sulfur, nitrogen-carbon quantum dot (C,S,N-CQD) multifunctional platform for synergistic cancer therapy, combining chemotherapy and photothermal treatment with in vitro cancer cell imaging. Materials & methods: Cu,S,N-CQDs were synthesized hydrothermally, loaded with disulfiram (DSF), and characterized through UV-Vis spectrophotometry, photoluminescence, Fourier-transform infrared spectroscopy, high-resolution transmission electron microscopy, dynamic light scattering, x-ray diffraction and EDAX. Results: Cu,S,N-CQD exhibited 5.5% absolute fluorescence quantum yield, 46.0% photothermal conversion efficiency and excellent stability. The release of DSF-loaded Cu,S,N-CQD, photothermal performance, and IC50 on PC3 prostate cancer cells, were evaluated. The impact of cellular glutathione on nanocarrier performance was investigated. Conclusion: Cu,S,N-CQD as a photothermal agent and DSF carrier showed synergy (combination index: 0.71) between chemotherapy and photothermal therapy. The nanocarrier simultaneously employed for in vitro cancer cell imaging due to its unique fluorescence properties.
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Affiliation(s)
- Mohamad Mahani
- Department of Chemistry, Faculty of Chemistry & Chemical Engineering, Graduate University of Advanced Technology, Kerman, 7631818356, Iran
| | - Leila Montazer
- Department of Chemistry, Faculty of Chemistry & Chemical Engineering, Graduate University of Advanced Technology, Kerman, 7631818356, Iran
| | - Faeze Khakbaz
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, 7616913439, Iran
| | - Faten Divsar
- Department of Chemistry, Payame Noor University (PNU), 19395-4697, Tehran, Iran
| | - Mehdi Yoosefian
- Department of Chemistry, Faculty of Chemistry & Chemical Engineering, Graduate University of Advanced Technology, Kerman, 7631818356, Iran
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8
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Ratre P, Nazeer N, Kumari R, Thareja S, Jain B, Tiwari R, Kamthan A, Srivastava RK, Mishra PK. Carbon-Based Fluorescent Nano-Biosensors for the Detection of Cell-Free Circulating MicroRNAs. BIOSENSORS 2023; 13:226. [PMID: 36831992 PMCID: PMC9953975 DOI: 10.3390/bios13020226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
Currently, non-communicable diseases (NCDs) have emerged as potential risks for humans due to adopting a sedentary lifestyle and inaccurate diagnoses. The early detection of NCDs using point-of-care technologies significantly decreases the burden and will be poised to transform clinical intervention and healthcare provision. An imbalance in the levels of circulating cell-free microRNAs (ccf-miRNA) has manifested in NCDs, which are passively released into the bloodstream or actively produced from cells, improving the efficacy of disease screening and providing enormous sensing potential. The effective sensing of ccf-miRNA continues to be a significant technical challenge, even though sophisticated equipment is needed to analyze readouts and expression patterns. Nanomaterials have come to light as a potential solution as they provide significant advantages over other widely used diagnostic techniques to measure miRNAs. Particularly, CNDs-based fluorescence nano-biosensors are of great interest. Owing to the excellent fluorescence characteristics of CNDs, developing such sensors for ccf-microRNAs has been much more accessible. Here, we have critically examined recent advancements in fluorescence-based CNDs biosensors, including tools and techniques used for manufacturing these biosensors. Green synthesis methods for scaling up high-quality, fluorescent CNDs from a natural source are discussed. The various surface modifications that help attach biomolecules to CNDs utilizing covalent conjugation techniques for multiple applications, including self-assembly, sensing, and imaging, are analyzed. The current review will be of particular interest to researchers interested in fluorescence-based biosensors, materials chemistry, nanomedicine, and related fields, as we focus on CNDs-based nano-biosensors for ccf-miRNAs detection applications in the medical field.
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Affiliation(s)
- Pooja Ratre
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Nazim Nazeer
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Roshani Kumari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Suresh Thareja
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda 151401, India
| | - Bulbul Jain
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Rajnarayan Tiwari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Arunika Kamthan
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
| | - Rupesh K. Srivastava
- Department of Biotechnology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Pradyumna Kumar Mishra
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal 462030, India
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9
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Doxorubicin-loaded polymeric micelles decorated with nitrogen-doped carbon dots for targeted breast cancer therapy. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2022.104055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Khakbaz F, Mirzaei M, Mahani M. Lecithin sensitized thermo-sensitive niosome using NIR-carbon dots for breast cancer combined chemo-photothermal therapy. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114236] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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11
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Zhou Y, Chen J, Kirbas Cilingir E, Zhang W, Gonzalez L, Perez S, Davila A, Brejcha N, Gu J, Shi W, Domena JB, Ferreira BCLB, Zhang F, Vallejo FA, Toledo D, Liyanage PY, Graham RM, Dallman J, Peng Z, Agatemor C, Catenazzi A, Leblanc RM. An insight into embryogenesis interruption by carbon nitride dots: can they be nucleobase analogs? NANOSCALE 2022; 14:17607-17624. [PMID: 36412202 DOI: 10.1039/d2nr04778k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The carbon nitride dot (CND) is an emerging carbon-based nanomaterial. It possesses rich surface functional moieties and a carbon nitride core. Spectroscopic data have demonstrated the analogy between CNDs and cytosine/uracil. Recently, it was found that CNDs could interrupt the normal embryogenesis of zebrafish. Modifying CNDs with various nucleobases, especially cytosine, further decreased embryo viability and increased deformities. Physicochemical property characterization demonstrated that adenine- and cytosine-incorporated CNDs are similar but different from guanine-, thymine- and uracil-incorporated CNDs in many properties, morphology, and structure. To investigate the embryogenesis interruption at the cellular level, bare and different nucleobase-incorporated CNDs were applied to normal and cancerous cell lines. A dose-dependent decline was observed in the viability of normal and cancerous cells incubated with cytosine-incorporated CNDs, which matched results from the zebrafish embryogenesis experiment. In addition, nucleobase-incorporated CNDs were observed to enter cell nuclei, demonstrating a possibility of CND-DNA interactions. CNDs modified by complementary nucleobases could bind each other via hydrogen bonds, which suggests nucleobase-incorporated CNDs can potentially bind the complementary nucleobases in a DNA double helix. Nonetheless, neither bare nor nucleobase-incorporated CNDs were observed to intervene in the amplification of the zebrafish polymerase-alpha 1 gene in quantitative polymerase chain reactions. Thus, in conclusion, the embryogenesis interruption by bare and nucleobase-incorporated CNDs might not be a consequence of CND-DNA interactions during DNA replication. Instead, CND-Ca2+ interactions offer a plausible mechanism that hindered cell proliferation and zebrafish embryogenesis originating from disturbed Ca2+ homeostasis by CNDs. Eventually, the hypothesis that raw or nucleobase-incorporated CNDs can be nucleobase analogs proved to be invalid.
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Affiliation(s)
- Yiqun Zhou
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
- C-Dots, LLC, Miami, FL 33136, USA
- Department of Biological Sciences, Florida International University, Miami, FL 33199, USA.
| | - Jiuyan Chen
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | | | - Wei Zhang
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | | | - Samuel Perez
- Miami Dade College North Campus, Miami, FL 33167, USA
| | - Arjuna Davila
- Miami Dade College North Campus, Miami, FL 33167, USA
| | | | - Jun Gu
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | - Wenquan Shi
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Justin B Domena
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | | | - Fuwu Zhang
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | - Frederic A Vallejo
- Department of Neurological Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Daniela Toledo
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
| | | | - Regina M Graham
- Department of Neurological Surgery, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
| | - Julia Dallman
- Department of Biology, University of Miami, Coral Gables, FL 33146, USA
| | - Zhili Peng
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, Yunnan 650091, People's Republic of China
| | - Christian Agatemor
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
- Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL 33136, USA
| | - Alessandro Catenazzi
- Department of Biological Sciences, Florida International University, Miami, FL 33199, USA.
| | - Roger M Leblanc
- Department of Chemistry, University of Miami, Coral Gables, FL 33146, USA.
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12
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Ultrasensitive FRET-based aptasensor for interleukin-6 as a biomarker for COVID-19 progression using nitrogen-doped carbon quantum dots and gold nanoparticles. Mikrochim Acta 2022; 189:472. [DOI: 10.1007/s00604-022-05570-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/06/2022] [Indexed: 11/27/2022]
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13
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Ajgaonkar R, Lee B, Valimukhametova A, Nguyen S, Gonzalez-Rodriguez R, Coffer J, Akkaraju GR, Naumov AV. Detection of Pancreatic Cancer miRNA with Biocompatible Nitrogen-Doped Graphene Quantum Dots. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15165760. [PMID: 36013894 PMCID: PMC9414703 DOI: 10.3390/ma15165760] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/17/2022] [Accepted: 08/17/2022] [Indexed: 05/05/2023]
Abstract
Early-stage pancreatic cancer remains challenging to detect, leading to a poor five-year patient survival rate. This obstacle necessitates the development of early detection approaches based on novel technologies and materials. In this work, the presence of a specific pancreatic cancer-derived miRNA (pre-miR-132) is detected using the fluorescence properties of biocompatible nitrogen-doped graphene quantum dots (NGQDs) synthesized using a bottom-up approach from a single glucosamine precursor. The sensor platform is comprised of slightly positively charged (1.14 ± 0.36 mV) NGQDs bound via π-π stacking and/or electrostatic interactions to the negatively charged (-22.4 ± 6.00 mV) bait ssDNA; together, they form a complex with a 20 nm average size. The NGQDs' fluorescence distinguishes specific single-stranded DNA sequences due to bait-target complementarity, discriminating them from random control sequences with sensitivity in the micromolar range. Furthermore, this targetability can also detect the stem and loop portions of pre-miR-132, adding to the practicality of the biosensor. This non-invasive approach allows cancer-specific miRNA detection to facilitate early diagnosis of various forms of cancer.
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Affiliation(s)
- Ryan Ajgaonkar
- School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA
- Department of Biology, Texas Christian University, Fort Worth, TX 76129, USA
| | - Bong Lee
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX 76129, USA
| | - Alina Valimukhametova
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX 76129, USA
| | - Steven Nguyen
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX 76129, USA
| | | | - Jeffery Coffer
- Department of Chemistry and Biochemistry, Texas Christian University, Fort Worth, TX 76129, USA
| | | | - Anton V. Naumov
- Department of Physics and Astronomy, Texas Christian University, Fort Worth, TX 76129, USA
- Correspondence: ; Tel.: +1-(713)-253-8775
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14
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Barrientos K, Arango JP, Moncada MS, Placido J, Patiño J, Macías SL, Maldonado C, Torijano S, Bustamante S, Londoño ME, Jaramillo M. Carbon dot-based biosensors for the detection of communicable and non -communicable diseases. Talanta 2022; 251:123791. [DOI: 10.1016/j.talanta.2022.123791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 07/24/2022] [Accepted: 07/26/2022] [Indexed: 10/16/2022]
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15
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Bardajee GR, Zamani M, Mahmoodian H, Elmizadeh H, Yari H, Jouyandeh L, Shirkavand R, Sharifi M. Capability of novel fluorescence DNA-conjugated CdTe/ZnS quantum dots nanoprobe for COVID-19 sensing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 269:120702. [PMID: 34922287 PMCID: PMC8656256 DOI: 10.1016/j.saa.2021.120702] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/13/2021] [Accepted: 11/30/2021] [Indexed: 05/20/2023]
Abstract
Urgent identification of COVID-19 in infected patients is highly important nowadays. Förster or fluorescence resonance energy transfer (FRET) is a powerful and sensitive method for nanosensing applications, and quantum dots are essential materials in FRET-based nanosensors. The QDs are conjugated to DNA or RNA and used in many applications. Therefore, in the present study, novel fluorescence DNA-conjugated CdTe/ZnS quantum dots nanoprobe designed for detection of Covid-19 after extracting their RNA from saliva of hesitant people. For achieving this purpose, the water-soluble CdTe/ZnS QDs-DNA prepared via replacing the thioglycolic acid (TGA) on the surface of QDs with capture DNA (thiolated DNA) throw a ligand-exchange method. Subsequently, by adding the different concentrations of complementary (target DNA) in a mixture of quencher DNA (BHQ2-labeled DNA) and the QDs-DNA conjugates at different conditions, sandwiched hybrids were formed. The results showed that the fluorescence intensity was decreased with increasing the concentration of target DNA (as a positive control). The linear equation and regression (Y = 40.302 X + 1 and R2 = 0.98) were obtained by using the Stern-Volmer relationship. The Limit of detection (LOD) was determined 0.000823 µM. The achieved results well confirm the outcomes of the RT-PCR method in real samples.
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Affiliation(s)
| | - Mohammadreza Zamani
- Department of Plant Biotechnology, National Institute for Genetic Engineering and Biotechnology (NIGEB), P.O. Box 14155-6343, Tehran, Iran
| | - Hossein Mahmoodian
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran
| | - Hamideh Elmizadeh
- Legal Medicine Research Center, Legal Medicine Organization, Tehran, Iran
| | - Hadi Yari
- Medical Biotechnology Department, National Institute of Genetics Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Lavin Jouyandeh
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran
| | - Razieh Shirkavand
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran
| | - Mahdieh Sharifi
- Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran
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16
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Mahani M, Khakbaz F, Ju H. Hairpin oligosensor using SiQDs: Förster resonance energy transfer study and application for miRNA-21 detection. Anal Bioanal Chem 2022; 414:2505-2512. [PMID: 35099583 DOI: 10.1007/s00216-022-03891-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/27/2021] [Accepted: 01/10/2022] [Indexed: 11/28/2022]
Abstract
MicroRNAs are known to be tumor suppressors and promoters and can be used as cancer markers. In this work, a novel oligosensor was designed using Si quantum dots (SiQDs) for the detection of miRNAs. Five-nanometer SiQDs were synthesized, with a band gap of 2.8 eV, fluorescence lifetime of 4.56 μs (τ1/2 = 3.26 μs), quantum yield of 25%, fluorescence rate constant of 6.25 × 104, and non-radiative rate constant of 1.60 × 105 s-1. They showed excellent water dispersibility, good stability (with 95% confidence for 6-month storage) without photobleaching, and high biocompatibility, with an IC50 value of 292.2 μg/L. The SiQDs and Black Hole Quencher-1 (BHQ1) were conjugated to the 5' and 3' terminals of an oligomer, respectively. The resulting hairpin molecular beacon showed resonance energy transfer efficiency of 63%. A distance of 0.91 R (Förster distance) between SiQD and BHQ1 was obtained. In the presence of a stoichiometric amount of the complementary oligonucleotide (ΔGhybridization = -35.09 kcal mol-1), 98% of the fluorescence was recovered due to loop opening of the hairpin structure. The probe showed good selectivity toward miRNA-21, with a limit of detection of 14.9 fM. The oligosensor recoveries of miRNA-21 spiked in human serum and urine were 94-98% and 93-108%, respectively.
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Affiliation(s)
- Mohamad Mahani
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, Kerman, Iran.
| | - Faeze Khakbaz
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Huangxian Ju
- State Key Laboratory of Analytical Chemistry for Life Science, Department of Chemistry, Nanjing University, Nanjing, 210023, China
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17
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Lei H, Liu Q, Leng J, Liu H, Wang C, Xu M, An W, Bao C, Wang Z. Highly sensitive and selective detection of butachlor based on the resonance light scattering of doped carbon quantum dots. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:652-660. [PMID: 35081194 DOI: 10.1039/d1ay01356d] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this work, a new method of resonance light scattering was developed for the sensitive and selective detection of butachlor. Firstly, buckwheat was used as the main carbon source to prepare a new type of doped carbon quantum dot using the hydrothermal method. A new method for the determination of butachlor was then established by the change in resonance light scattering intensity after the addition of butachlor into the doped carbon quantum dot solution. The detection effect was successfully optimized by investigating the optimum reaction conditions. Under the optimum conditions, the resonance light scattering intensity of doped carbon quantum dots was greatly enhanced at 460 nm after the addition of butachlor, and the intensity changes were linearly correlated with the butachlor concentration in the range of 1-7 μg L-1. The detection limit was 0.136 μg L-1, and the recoveries ranged between 98.6% and 101.8%. This method was also used for butachlor detection in environmental water.
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Affiliation(s)
- Han Lei
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China.
| | - Qinghao Liu
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China.
| | - Jiapeng Leng
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian 116600, China
| | - Hongyan Liu
- Institute of Plant Protection, Henan Academy of Agriculture Sciences, Zhengzhou 450002, China
| | - Cundong Wang
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China.
| | - Mingyue Xu
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China.
| | - Wenqing An
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China.
| | - Chenning Bao
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China.
| | - Zhen Wang
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China.
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Mahani M, Karimi-Mazidi P, Khakbaz F, Torkzadeh-Mahani M. Carbon quantum dots-Annexin V probe: photoinduced electron transfer mechanism, phosphatidylserine detection, and apoptotic cell imaging. Mikrochim Acta 2022; 189:69. [PMID: 35066672 DOI: 10.1007/s00604-021-05147-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Accepted: 12/12/2021] [Indexed: 12/22/2022]
Abstract
An annexin V-based probe is designed and fabricated using carbon quantum dot as highly stable and biocompatible fluorescent crystals for real-time fluorescence imaging of apoptotic cells. Carbon quantum dots were synthesized, characterized, and conjugated to annexin V. The fluorescence of CQDs at 450 nm (excitation at 350 nm) is quenched due to the photoinduced electron transfer between "carbon quantum dots" and two amino acids (tyrosine and tryptophan) in the annexin structure as quencher. The probe shows very strong and bright fluorescence emission in the presence of phosphatidylserine on the outer layer of the apoptotic cell membrane. It was shown that using fluorescence spectroscopy, the probe can be applied to sensitive phosphatidylserine determination and using fluorescence microscopy, it is possible to monitor cell apoptosis in real time.
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Affiliation(s)
- Mohamad Mahani
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, 7631818356, Kerman, Iran.
| | - Parisa Karimi-Mazidi
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, 7631818356, Kerman, Iran
| | - Faeze Khakbaz
- Department of Nano Chemistry, Faculty of Chemistry, Shahid Bahonar University, Kerman, Iran
| | - Masoud Torkzadeh-Mahani
- Department of Biotechnology, Institute of Science, High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
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Wu J, Chen G, Jia Y, Ji C, Wang Y, Zhou Y, Leblanc RM, Peng Z. Carbon dot composites for bioapplications: a review. J Mater Chem B 2022; 10:843-869. [DOI: 10.1039/d1tb02446a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent advancements in the synthesis of carbon dot composites and their applications in biomedical fields (bioimaging, drug delivery and biosensing) have been carefully summarized. The current challenges and future trends of CD composites in this field have also been discussed.
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Affiliation(s)
- Jiajia Wu
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Gonglin Chen
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Yinnong Jia
- Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, School of Pharmaceutical Sciences, Kunming Medical University, Kunming 650500, People's Republic of China
| | - Chunyu Ji
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
| | - Yuting Wang
- Yunnan Provincial Key Laboratory of Pharmacology for Natural Products, School of Pharmaceutical Sciences, Kunming Medical University, Kunming 650500, People's Republic of China
| | - Yiqun Zhou
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, USA
| | - Roger M. Leblanc
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, USA
| | - Zhili Peng
- School of Materials and Energy, Yunnan University, Kunming 650091, People's Republic of China
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Mahani M, Taheri M, Divsar F, Khakbaz F, Nomani A, Ju H. Label-free triplex DNA-based biosensing of transcription factor using fluorescence resonance energy transfer between N-doped carbon dot and gold nanoparticle. Anal Chim Acta 2021; 1181:338919. [PMID: 34556210 DOI: 10.1016/j.aca.2021.338919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 07/21/2021] [Accepted: 08/04/2021] [Indexed: 10/20/2022]
Abstract
Herein, a new turn-on fluorescent assay was established as a platform for the sensing of transcription factor NF-kB p50 based on triplex DNA labeled with N-doped carbon dots (NCDs) and gold nanoparticles (AuNPs) as donors and acceptors, respectively in the fluorescence resonance energy transfer (FRET) system. The synthetized nanoparticles were studied by different characterization techniques. A labeled DNA molecule was designed to form a triplex when no target protein existence and reported its formation by the change in FRET efficiency. While the triplex DNA was formed, the fluorescence of carbon dots at 503 nm (excitation at 460 nm) was quenched by FRET between NCD and AuNP. However, presence of NF-kB p50 followed by the considerable enhancement in the fluorescence intensity caused by the release of AuNPs labeled single stranded DNA from the triplex DNA structure, used for sensitive determination of the transcription factor. This technique showed a linearity (R2 = 0.9943) in the range of 20-150 pM with a limit of detection of 9 pM for the determination of NF-kB p50. Moreover, the sequence-specific triplex-based biosensor could discriminate NF-kB p50 from the other proteins with high selectively. Our results suggest that the biosensor provides a generalizable platform for rapid detection of NF-kB p50 in synthetic medium, promising in prevention and early diagnosis of cancer.
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Affiliation(s)
- Mohamad Mahani
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, Kerman, 7631818356, Iran.
| | - Maryam Taheri
- Department of Nanotechnology, Faculty of Sciences and Modern Technologies, Graduate University of Advanced Technology, Kerman, 7631818356, Iran
| | - Faten Divsar
- Department of Chemistry, Payame Noor Universtiy (PNU), P. O. BOX 19395-3697, Tehran, Iran
| | - Faeze Khakbaz
- Department of NanoChemistry, Faculty of Chemistry, Shahid Bahonar University, Kerman, Iran
| | - Alireza Nomani
- Department of Pharmaceutics, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Huangxian Ju
- State Key Laboratory of Analytical Chemistry for Life Science, Department of Chemistry, Nanjing University, Nanjing, 210023, China
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Mahani M, Kordi M. Warfarin Induced Quenching of the Carbon Quantum Dots: Mechanism Study and Warfarin Sensor Construction. J Fluoresc 2021; 31:1731-1738. [PMID: 34460043 DOI: 10.1007/s10895-021-02804-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 08/17/2021] [Indexed: 10/20/2022]
Abstract
The mechanism of the fluorescence quenching of the CQDs by warfarin was determined and based on this study a simple, low cost and highly sensitive nanosensor was developed for determination of Warfarin in plasma samples. The carbon quantum dots with 3.5 µs lifetime (halflife of 2.4 µs) were synthesized by hydrothermal method and characterized. The fluorescence rate constant of 4.5 × 104 s-1 and quenching rate constant of 6.18 × 104 s-1 (from 10 μM warfarin that result in 17% lifetime reduction) was calculated. High quenching efficiency results in 21.63 L mmol-1 Stern-Volmer constant and the study of pH and temperature also confirm the dynamic quenching mechanism. The second order rate constant of 6.18 × 104 L mmol-1 s-1 was obtained for collisions between CQDs and warfarin. Based on this mechanism, a simple, low cost and very sensitive warfarin nanosensor was developed with calibration sensitivity of 21.63 L mmol-1, working range of 0.10 - 12.00 μM and detection limit of 0.01 μM.
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Affiliation(s)
- Mohamad Mahani
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, 7631818356, Kerman, Iran.
| | - Moazame Kordi
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, 7631818356, Kerman, Iran
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22
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Mahani M, Mahmoudi F, Fassihi J, Hasani Z, Divsar F. Carbon dots-embedded N-acetylneuraminic acid and glucuronic acid-imprinted polymers for targeting and imaging of cancer cells. Mikrochim Acta 2021; 188:224. [PMID: 34101046 DOI: 10.1007/s00604-021-04876-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 05/25/2021] [Indexed: 11/26/2022]
Abstract
Diagnosis, treatment, and prediction of cancer progression require new targeting agents to specifically target cell surface receptors. Herein, we demonstrated fluorescent carbon quantum dots-molecularly imprinted polymer (CQD-MIP) for selective targeting and imaging of cancer cells. Carbon quantum dots (CQDs) were synthesized and characterized. The synthesized CQDs had average size of 1.5 nm and show intense fluorescence emission at wavelength of 450 nm with excitation at 370 nm. CQD-MIP nanoparticles imprinted with N-acetylneuraminic acid and glucuronic acid were prepared and characterized. CQD-MIPs were successfully applied for selective targeting and imaging of MCF-7, HepG-2, and NIH-3T3 cell lines. Non-imprinted polymer (NIP) showed no binding properties toward a target molecule. Non-imprinted polymer (NIP) and non-cancerous human cell lines were used for controlling the imprinting and targeting effects, respectively. Acceptable results were obtained with imprinted polymers on cancer cells.
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Affiliation(s)
- Mohamad Mahani
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, Kerman, 7631818356, Iran.
| | - Firouze Mahmoudi
- Department of Nanotechnology, Faculty of Sciences and Modern Technologies, Graduate University of Advanced Technology, Kerman, Iran
| | | | - Zahra Hasani
- Department of New Materials, Institute of Science, High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, 7631133131, Iran
| | - Faten Divsar
- Department of Chemistry, Payame Noor University, PO BOX 19395-3697, Tehran, Iran
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23
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Ragazzon G, Cadranel A, Ushakova EV, Wang Y, Guldi DM, Rogach AL, Kotov NA, Prato M. Optical processes in carbon nanocolloids. Chem 2021. [DOI: 10.1016/j.chempr.2020.11.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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24
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Shandilya R, Ranjan S, Khare S, Bhargava A, Goryacheva IY, Mishra PK. Point-of-care diagnostics approaches for detection of lung cancer-associated circulating miRNAs. Drug Discov Today 2021; 26:1501-1509. [PMID: 33647439 DOI: 10.1016/j.drudis.2021.02.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/03/2021] [Accepted: 02/17/2021] [Indexed: 02/07/2023]
Abstract
Circulating cell-free miRNAs (ccf-miRs) have gained significant interest as biomarkers for lung cancer (LC) diagnosis. However, the clinical application of ccf-miRs is mainly limited by time, cost, and expertise-related problems of existing detection strategies. Recently, the development of different point-of-care (POC) approaches offers useful on-site platforms, because these technologies have important features such as portability, rapid turnaround time, minimal sample requirement, and cost-effectiveness. In this review, we discuss different POC approaches for detecting ccf-miRs and highlight the utility of incorporating nanomaterials for enhanced biorecognition and signal transduction, further improving their diagnostic applicability in LC settings.
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Affiliation(s)
- Ruchita Shandilya
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Shashi Ranjan
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Surbhi Khare
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Arpit Bhargava
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Irina Yu Goryacheva
- Department of General and Inorganic Chemistry, Institute of Chemistry, Saratov State University, Saratov, Russia
| | - Pradyumna Kumar Mishra
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India.
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26
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Interfacing DNA with nanoparticles: Surface science and its applications in biosensing. Int J Biol Macromol 2020; 151:757-780. [DOI: 10.1016/j.ijbiomac.2020.02.217] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/19/2020] [Accepted: 02/19/2020] [Indexed: 12/17/2022]
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27
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Özgün Köse S, Öziç C, Yılmaz F, Ersöz A, Say R. DNA ligase photocrosslinked cryogenic column based biotinylation kit for viral hybridization and detection. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Recent advances on nanomaterials-based fluorimetric approaches for microRNAs detection. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:110007. [PMID: 31500008 DOI: 10.1016/j.msec.2019.110007] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/09/2019] [Accepted: 07/19/2019] [Indexed: 12/18/2022]
Abstract
MicroRNAs are types of small single-stranded endogenous highly conserved non-coding RNAs, which play main regulatory functions in a wide range of cellular and physiological events, such as proliferation, differentiation, neoplastic transformation, and cell regeneration. Recent findings have proved a close association between microRNAs expression and the development of many diseases, indicating the importance of microRNAs as clinical biomarkers and targets for drug discovery. However, due to a number of prominent characteristics like small size, high sequence similarity and low abundance, sensitive and selective identification of microRNAs has rather been a hardship through routine traditional assays, including quantitative polymerase chain reaction, microarrays, and northern blotting analysis. More recently, the soaring progression in nanotechnology and fluorimetric methodologies in combination with nanomaterials have promised microRNAs detection with high sensitivity, efficiency and selectivity, excellent reproducibility and lower cost. Therefore, this review will represent an overview of latest advances in microRNAs detection through nanomaterials-based fluorescent methods, like gold nanoparticles, silver and copper nanoclusters, graphene oxide, and magnetic silicon nanoparticles.
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Mahani M, Mousapour Z, Divsar F, Nomani A, Ju H. A carbon dot and molecular beacon based fluorometric sensor for the cancer marker microRNA-21. Mikrochim Acta 2019; 186:132. [PMID: 30707293 DOI: 10.1007/s00604-019-3233-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 01/04/2019] [Indexed: 01/12/2023]
Abstract
A carbon quantum dot (CQD) labeled molecular beacon was synthesized and applied to the detection of microRNA-21. The CQDs possess low cytotoxicity, excellent water solubility, and photostability. The CQDs were characterized by transmission electron microscopy, dynamic light scattering, Fourier-transform infrared spectroscopy, and fluorescence spectroscopy. The molecular beacon (MB) was labeled with the CQDs at the 5' end, and with Black Hole Quencher 1 (BHQ1) at the 3' end. The two labels act as the donor and acceptor parts of a FRET system, respectively. Only weak fluorescence is observed in the absence of microRNA-21, and in the presence of scrambled or mismatched sequences. However, in the presence of microRNA-21, fluorescence intensity of the CQDs at 460 nm (excitation at 360 nm) recovers. The hybridization of the hairpin structure of the MB with microRNA-21 opens the loop of MB. Consequently, the distance between the BHQ1 quencher and the CQDs is increased and fluorescence changes. The probe has high sensitivity (with a 0.3 nM limit of detection) and specificity. It can distinguish between microRNA-21 and its single mismatch mutant and hence represents a valuable tool for the early cancer diagnosis. Graphical abstract Schematic presentation of a fluorometric microR-21 assay using carbon dots carrying a molecular beacon (MB) labeled with a black hole quencher. Quenching is suppressed once the MB binds to microRNA-21.
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Affiliation(s)
- Mohamad Mahani
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, Graduate University of Advanced Technology, Kerman, 7631818356, Iran.
| | - Zhahra Mousapour
- Department of Nanotechnology, Faculty of Sciences and Modern Technologies, Graduate University of Advanced Technology, Kerman, 7631818356, Iran
| | - Faten Divsar
- Department of Chemistry, Payame Noor University, P. O. BOX: 19395-3197, Tehran, Iran
| | - Alireza Nomani
- Department of Pharmaceutics, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854-8020, USA
| | - Huangxian Ju
- State Key Laboratory of Analytical Chemistry for Life Science, Department of Chemistry, Nanjing University, Nanjing, 210093, China
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Wang YH, He LL, Huang KJ, Chen YX, Wang SY, Liu ZH, Li D. Recent advances in nanomaterial-based electrochemical and optical sensing platforms for microRNA assays. Analyst 2019; 144:2849-2866. [DOI: 10.1039/c9an00081j] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This review describes recent efforts in the application of nanomaterials as sensing elements in electrochemical and optical miRNAs assays.
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Affiliation(s)
- Yi-Han Wang
- College of Chemistry and Chemical Engineering
- Xinyang Normal University
- Xinyang 464000
- China
| | - Liu-Liu He
- College of Chemistry and Chemical Engineering
- Xinyang Normal University
- Xinyang 464000
- China
| | - Ke-Jing Huang
- College of Chemistry and Chemical Engineering
- Xinyang Normal University
- Xinyang 464000
- China
| | - Ying-Xu Chen
- College of Chemistry and Chemical Engineering
- Xinyang Normal University
- Xinyang 464000
- China
| | - Shu-Yu Wang
- College of Chemistry and Chemical Engineering
- Xinyang Normal University
- Xinyang 464000
- China
| | - Zhen-Hua Liu
- College of Chemistry and Chemical Engineering
- Xinyang Normal University
- Xinyang 464000
- China
| | - Dan Li
- College of Chemistry and Chemical Engineering
- Xinyang Normal University
- Xinyang 464000
- China
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31
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Tiwari P, Kaur N, Sharma V, Kang H, Uddin J, Mobin SM. Cannabis sativa-derived carbon dots co-doped with N–S: highly efficient nanosensors for temperature and vitamin B12. NEW J CHEM 2019. [DOI: 10.1039/c9nj04061g] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cannabis sativa-derived carbon dots as efficient nanosensors for temperature and vitamin B12.
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Affiliation(s)
- Pranav Tiwari
- Discipline of Metallurgical Engineering and Material Science
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Navpreet Kaur
- Discipline of Biosciences and Biomedical Engineering
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Vinay Sharma
- Discipline of Biosciences and Biomedical Engineering
- Indian Institute of Technology Indore
- Indore 453552
- India
| | - Hyeonggon Kang
- Center for Nanotechnology
- Department of Natural Sciences
- Coppin State University
- Baltimore
- USA
| | - Jamal Uddin
- Center for Nanotechnology
- Department of Natural Sciences
- Coppin State University
- Baltimore
- USA
| | - Shaikh M. Mobin
- Discipline of Metallurgical Engineering and Material Science
- Indian Institute of Technology Indore
- Indore 453552
- India
- Discipline of Biosciences and Biomedical Engineering
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Molaei MJ. A review on nanostructured carbon quantum dots and their applications in biotechnology, sensors, and chemiluminescence. Talanta 2018; 196:456-478. [PMID: 30683392 DOI: 10.1016/j.talanta.2018.12.042] [Citation(s) in RCA: 194] [Impact Index Per Article: 32.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 12/22/2022]
Abstract
Carbon quantum dots (CQDs) are a member of carbon nanostructures family which have received increasing attention for their photoluminescence (PL), physical and chemical stability and low toxicity. The classical semiconductor quantum dots (QDs) are semiconductor particles that are able to emit fluorescence by excitation. The CQDs is mainly referred to photoluminescent carbon nanoparticles less than 10 nm, with surface modification or functionalization. Contrary to other carbon nanostructures, CQDs can be synthesized and functionalized fast and easily. The fluorescence origin of the CQDs is a controversial issue which depends on carbon source, experimental conditions, and functional groups. However, PL emissions originated from conjugated π-domains and surface defects have been proposed for the PL emission mechanisms of the CQDs. These nanostructures have been used as nontoxic alternatives to the classical heavy metals containing semiconductor QDs in some applications such as in-vivo and in-vitro bio-imaging, drug delivery, photosensors, chemiluminescence (CL), and etc. This paper will introduce CQDs, their structure, and PL characteristics. Recent advances of the application of CQDs in biotechnology, sensors, and CL is comprehensively discussed.
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Affiliation(s)
- Mohammad Jafar Molaei
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood 3619995161, Iran.
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Singh RD, Shandilya R, Bhargava A, Kumar R, Tiwari R, Chaudhury K, Srivastava RK, Goryacheva IY, Mishra PK. Quantum Dot Based Nano-Biosensors for Detection of Circulating Cell Free miRNAs in Lung Carcinogenesis: From Biology to Clinical Translation. Front Genet 2018; 9:616. [PMID: 30574163 PMCID: PMC6291444 DOI: 10.3389/fgene.2018.00616] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 11/23/2018] [Indexed: 12/24/2022] Open
Abstract
Lung cancer is the most frequently occurring malignancy and the leading cause of cancer-related death for men in our country. The only recommended screening method is clinic based low-dose computed tomography (also called a low-dose CT scan, or LDCT). However, the effect of LDCT on overall mortality observed in lung cancer patients is not statistically significant. Over-diagnosis, excessive cost, risks associated with radiation exposure, false positive results and delay in the commencement of the treatment procedure questions the use of LDCT as a reliable technique for population-based screening. Therefore, identification of minimal-invasive biomarkers able to detect malignancies at an early stage might be useful to reduce the disease burden. Circulating nucleic acids are emerging as important source of information for several chronic pathologies including lung cancer. Of these, circulating cell free miRNAs are reported to be closely associated with the clinical outcome of lung cancer patients. Smaller size, sequence homology between species, low concentration and stability are some of the major challenges involved in characterization and specific detection of miRNAs. To circumvent these problems, synthesis of a quantum dot based nano-biosensor might assist in sensitive, specific and cost-effective detection of differentially regulated miRNAs. The wide excitation and narrow emission spectra of these nanoparticles result in excellent fluorescent quantum yields with a broader color spectrum which make them ideal bio-entities for fluorescence resonance energy transfer (FRET) based detection for sequential or simultaneous study of multiple targets. In addition, photo-resistance and higher stability of these nanoparticles allows extensive exposure and offer state-of-the art sensitivity for miRNA targeting. A major obstacle for integrating QDs into clinical application is the QD-associated toxicity. However, the use of non-toxic shells along with surface modification not only overcomes the toxicity issues, but also increases the ability of QDs to quickly detect circulating cell free miRNAs in a non-invasive mode. The present review illustrates the importance of circulating miRNAs in lung cancer diagnosis and highlights the translational prospects of developing QD-based nano-biosensor for rapid early disease detection.
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Affiliation(s)
- Radha D. Singh
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Ruchita Shandilya
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Arpit Bhargava
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Rajat Kumar
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Rajnarayan Tiwari
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, India
| | - Rupesh K. Srivastava
- Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
| | - Irina Y. Goryacheva
- Department of General and Inorganic Chemistry, Saratov State University, Saratov, Russia
| | - Pradyumna K. Mishra
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, India
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Paul ABM, Sadek ST, Mahesan AM. The role of microRNAs in human embryo implantation: a review. J Assist Reprod Genet 2018; 36:179-187. [PMID: 30315515 DOI: 10.1007/s10815-018-1326-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 09/28/2018] [Indexed: 12/11/2022] Open
Abstract
MicroRNAs (miRNAs) are emerging as important in human embryo implantation, and we present here a review of the literature from a clinical perspective. Implantation involves complex interactions between the blastocyst and endometrium. miRNAs have been shown to be differentially expressed in implanted compared with non-implanted blastocysts and euploid compared with aneuploid blastocysts. Further, miRNAs are differentially expressed in proliferative compared with decidualized endometrium, and in receptive compared with pre-receptive endometrium. miRNAs are also differentially expressed in endometrium of women who failed implantation, and in endometrium of women with recurrent implantation failure. Due to the complexity of miRNA signaling, studies have suffered from inconsistency in reproducibility of results. However, miRNAs show potential as biomarkers in the pursuit of more reliable prediction of embryo implantation.
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Affiliation(s)
- Anthea B M Paul
- Department of Pathology and Laboratory Medicine, University of Ottawa, 451 Smyth Road, Ottawa, Ontario, K1H 8M5, Canada
| | - Seifeldin T Sadek
- The Jones Institute for Reproductive Medicine, Eastern Virginia Medical School, 601 Colley Ave., Norfolk, VA, 23507, USA
| | - Arnold M Mahesan
- The Jones Institute for Reproductive Medicine, Eastern Virginia Medical School, 601 Colley Ave., Norfolk, VA, 23507, USA.
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Zhou C, Zou H, Sun C, Ren D, Chen J, Li Y. Signal amplification strategies for DNA-based surface plasmon resonance biosensors. Biosens Bioelectron 2018; 117:678-689. [DOI: 10.1016/j.bios.2018.06.062] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/21/2018] [Accepted: 06/28/2018] [Indexed: 12/12/2022]
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Ding L, Yang H, Ge S, Yu J. Fluorescent carbon dots nanosensor for label-free determination of vitamin B 12 based on inner filter effect. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 193:305-309. [PMID: 29258025 DOI: 10.1016/j.saa.2017.12.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 12/02/2017] [Accepted: 12/04/2017] [Indexed: 05/15/2023]
Abstract
A simple and effective fluorescent assay for the determination of vitamin B12 was developed. In this study, carbon dots (CDs) were prepared by one-pot hydrothermal method and directly used as a fluorophore in the inner filter effect (IFE). Both of the maximum absorption peak of vitamin B12 and excitation maxima of CDs are located at 360nm, hence, the excited light of CDs can be absorbed by vitamin B12, resulting in the fluorescence reduction of CDs. And the fluorescence intensity of CDs decreases with the increasing concentration of vitamin B12. This IFE-based sensing strategy shows a good linear relationship between the normalized fluorescence intensity and the concentration of vitamin B12 ranging from 0 to 60μM, with a limit of detection (LOD) of 0.1μM at a signal-to-noise ratio of 3. Furthermore, this proposed approach was successfully applied to vitamin B12 sensing in injections. This IFE sensing platform based on various fluorescent nanomaterials has a high promise for the detection of other biomolecules due to its inherent convenience.
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Affiliation(s)
- Longhua Ding
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, PR China
| | - Hongmei Yang
- Department of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Shenguang Ge
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, PR China
| | - Jinghua Yu
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan 250022, PR China; Department of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
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Su A, Wang D, Shu X, Zhong Q, Chen Y, Liu J, Wang Y. Synthesis of Fluorescent Carbon Quantum Dots from Dried Lemon Peel for Determination of Carmine in Drinks. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7286-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chen F, Gao W, Qiu X, Zhang H, Liu L, Liao P, Fu W, Luo Y. Graphene quantum dots in biomedical applications: Recent advances and future challenges. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.flm.2017.12.006] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yang JJ, Zhang ZF, Yan GQ. Facile detection of microRNA based on phosphorescence resonance energy transfer and duplex-specific nuclease-assisted signal amplification. Anal Biochem 2017; 539:127-133. [DOI: 10.1016/j.ab.2017.10.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 10/25/2017] [Accepted: 10/25/2017] [Indexed: 01/15/2023]
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Feng H, Qian Z. Functional Carbon Quantum Dots: A Versatile Platform for Chemosensing and Biosensing. CHEM REC 2017; 18:491-505. [PMID: 29171708 DOI: 10.1002/tcr.201700055] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 11/14/2017] [Indexed: 12/17/2022]
Abstract
Carbon quantum dot has emerged as a new promising fluorescent nanomaterial due to its excellent optical properties, outstanding biocompatibility and accessible fabrication methods, and has shown huge application perspective in a variety of areas, especially in chemosensing and biosensing applications. In this personal account, we give a brief overview of carbon quantum dots from its origin and preparation methods, present some advance on fluorescence origin of carbon quantum dots, and focus on development of chemosensors and biosensors based on functional carbon quantum dots. Comprehensive advances on functional carbon quantum dots as a versatile platform for sensing from our group are included and summarized as well as some typical examples from the other groups. The biosensing applications of functional carbon quantum dots are highlighted from selective assays of enzyme activity to fluorescent identification of cancer cells and bacteria.
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Affiliation(s)
- Hui Feng
- Department of Chemistry, College of Life Science and Chemistry, Zhejiang Normal University, Yingbin Road 688, Jinhua, Zhejiang Province, People's Republic of China
| | - Zhaosheng Qian
- Department of Chemistry, College of Life Science and Chemistry, Zhejiang Normal University, Yingbin Road 688, Jinhua, Zhejiang Province, People's Republic of China
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41
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Borghei YS, Hosseini M, Ganjali MR. Fluorometric determination of microRNA via FRET between silver nanoclusters and CdTe quantum dots. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2512-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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42
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Liao X, Li L, Pan J, Peng T, Ge B, Tang Q. In situ biosensor for detection miRNA in living cells based on carbon nitride nanosheets with catalytic hairpin assembly amplification. LUMINESCENCE 2017; 33:190-195. [PMID: 28929579 DOI: 10.1002/bio.3392] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 07/12/2017] [Accepted: 08/07/2017] [Indexed: 02/04/2023]
Abstract
In this study, an ultrasensitive fluorescence turn-on assay for in situ sensing of intracellular microRNA (miRNA) was developed utilizing a carbon nitride nanosheet (CNNS) and a catalytic hairpin assembly (CHA). The CHA showed favourable signal amplification for low-level biomarkers, and CNNS was an excellent candidate as a fluorescence quencher and gene vector. Moreover, the hairpin DNA of CHA could be adsorbed onto the surface of CNNS. An enzyme-free fluorescence biosensor for ultrasensitive sensing of intracellular miRNA in cells based on CHA and CNNS was designed. When faced with target miRNA, the fluorescence was recovered due to the miRNA, which could trigger cycling of CHA circuits, leading to the production of a marked enhanced fluorescence signal. Compared with traditional methods, the proposed method is convenient, with low cytotoxicity, and high specificity and ultrasensitivity. It has promising potential for detection low-level biomarkers.
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Affiliation(s)
- Xianjiu Liao
- West Guangxi Key Laboratory for Prevention and Treatment of High-incidence Diseases, Youjiang Medical University for Nationalities, Baise, People's Republic of China.,School of Integrated Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, People's Republic of China
| | - Liqing Li
- School of Integrated Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, People's Republic of China
| | - Jianbin Pan
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, People's Republic of China
| | - Tingting Peng
- West Guangxi Key Laboratory for Prevention and Treatment of High-incidence Diseases, Youjiang Medical University for Nationalities, Baise, People's Republic of China
| | - Bin Ge
- School of Integrated Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, People's Republic of China
| | - Qianli Tang
- West Guangxi Key Laboratory for Prevention and Treatment of High-incidence Diseases, Youjiang Medical University for Nationalities, Baise, People's Republic of China.,School of Integrated Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, People's Republic of China
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