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Sreenan B, Lee B, Wan L, Zeng R, Zhao J, Zhu X. Review of Mn-Doped Semiconductor Nanocrystals for Time-Resolved Luminescence Biosensing/Imaging. ACS APPLIED NANO MATERIALS 2022; 5:17413-17435. [PMID: 36874078 PMCID: PMC9980291 DOI: 10.1021/acsanm.2c04337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Colloidal semiconductor nanocrystals (NCs) have been developed for decades and are widely applied in biosensing/imaging. However, their biosensing/imaging applications are mainly based on luminescence-intensity measurement, which suffers from autofluorescence in complex biological samples and thus limits the biosensing/imaging sensitivities. It is expected for these NCs to be further developed to gain luminescence features that can overcome sample autofluorescence. On the other hand, time-resolved luminescence measurement utilizing long-lived-luminescence probes is an efficient technique to eliminate short-lived autofluorescence of samples while recording time-resolved luminescence of the probes for signal measurement after pulsed excitation from a light source. Despite time-resolved measurement being very sensitive, the optical limitations of many of the current long-lived-luminescence probes cause time-resolved measurement to be generally performed in laboratories with bulky and costly instruments. In order to apply highly sensitive time-resolved measurement for in-field or point-of-care (POC) testing, it is essential to develop probes possessing high brightness, low-energy (visible-light) excitation, and long lifetimes of up to milliseconds. Such desired optical features can significantly simplify the design criteria of time-resolved measurement instruments and facilitate the development of low-cost, compact, sensitive instruments for in-field or POC testing. Mn-doped NCs have recently been in rapid development and provide a strategy to solve the challenges faced by both colloidal semiconductor NCs and time-resolved luminescence measurement. In this review, we outline the major achievements in the development of Mn-doped binary and multinary NCs, with emphasis on their synthesis approaches and luminescence mechanisms. Specifically, we demonstrate how researchers approached these obstacles to achieve the aforementioned desired optical properties on the basis of the progressive understanding of Mn emission mechanisms. Afterward, we review representative applications of Mn-doped NCs in time-resolved luminescence biosensing/imaging and present the potential of Mn-doped NCs in advancing time-resolved luminescence biosensing/imaging for in-field or POC testing.
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Affiliation(s)
- Benjamin Sreenan
- Department of Electrical and Biomedical Engineering, University of Nevada-Reno, Reno, Nevada 89557, United States
| | - Bryan Lee
- Department of Electrical and Biomedical Engineering, University of Nevada-Reno, Reno, Nevada 89557, United States
| | - Li Wan
- Department of Physics, Wenzhou University, Wenzhou 325035, China
| | - Ruosheng Zeng
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
| | - Jialong Zhao
- School of Physical Science and Technology, Guangxi University, Nanning 530004, China
| | - Xiaoshan Zhu
- Department of Electrical and Biomedical Engineering, University of Nevada-Reno, Reno, Nevada 89557, United States
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2
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Li X, Li J, Li C, Guo Q, Wu M, Su L, Dou Y, Wu X, Xiao Z, Zhang X. Aminopeptidase N-targeting nanomolecule-assisted delivery of VEGF siRNA to potentiate antitumour therapy by suppressing tumour revascularization and enhancing radiation response. J Mater Chem B 2021; 9:7530-7543. [PMID: 34551051 DOI: 10.1039/d1tb00990g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Tumour revascularization and the consequent radioresistance activated by the up-regulated angiogenic pathway after radiation exposure remain a major bottleneck for improving the tumouricidal effect of radiotherapy (RT) in hepatocellular carcinoma (HCC). Herein, we show that fabricated aminopeptidase N (ANP/CD13)-targeting Gd-hybridized gold nanomolecules (tGd-GNMs) can efficaciously suppress tumour revascularization and the consequent radioresistance, and then synergize in augmenting the RT response. Both in vitro and in vivo experiments demonstrate that the targeted delivery of vascular endothelial growth factor (VEGF) siRNA into the tumour site and the generation of an abundance of intratumourally cytotoxic reactive oxygen species (ROS) under X-ray radiation by the tGd-GNMssiRNA complex has the capability to down-regulate VEGF gene expression and strengthen the radiation response. Furthermore, the tGd-GNMssiRNA complex contributes to excellent active tumour targeting ability, remarkably enhancing tumour contrast in the fluorescence, computed tomography (CT) and magnetic resonance (MR) imaging modalities in real-time with a long imaging time window. Overall, the synthesized tGd-GNMssiRNA complex with excellent potentiation of the antitumour ability and real-time multimodal imaging ability represents a promising visualized theranostic nanoplatform for the treatment of HCC.
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Affiliation(s)
- Xue Li
- Department of Radiology, Tianjin Medical University Second Hospital, No. 23, Pingjiang Road, Hexi District, Tianjin 300211, P. R. China.
| | - Jiang Li
- Department of Radiology, Tianjin Medical University Second Hospital, No. 23, Pingjiang Road, Hexi District, Tianjin 300211, P. R. China.
| | - Chunyin Li
- Department of Radiotherapy, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy Tianjin, Tianjin's Clinical Research Center for Cancer, 300060, P. R. China
| | - Qi Guo
- Department of Radiology, Tianjin Medical University Second Hospital, No. 23, Pingjiang Road, Hexi District, Tianjin 300211, P. R. China.
| | - Menglin Wu
- Department of Radiology, Tianjin Medical University Second Hospital, No. 23, Pingjiang Road, Hexi District, Tianjin 300211, P. R. China.
| | - Lin Su
- Tianjin Key Laboratory of Retinal Functions and Diseases, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, 251 Fukang Road, Tianjin 300384, China
| | - Yan Dou
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, P. R. China
| | - Xinhong Wu
- Department of Radiology, Tianjin Medical University Second Hospital, No. 23, Pingjiang Road, Hexi District, Tianjin 300211, P. R. China.
| | - Zhaoxun Xiao
- Department of Radiology, Tianjin Medical University Second Hospital, No. 23, Pingjiang Road, Hexi District, Tianjin 300211, P. R. China.
| | - Xuening Zhang
- Department of Radiology, Tianjin Medical University Second Hospital, No. 23, Pingjiang Road, Hexi District, Tianjin 300211, P. R. China.
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Morselli G, Villa M, Fermi A, Critchley K, Ceroni P. Luminescent copper indium sulfide (CIS) quantum dots for bioimaging applications. NANOSCALE HORIZONS 2021; 6:676-695. [PMID: 34264247 DOI: 10.1039/d1nh00260k] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Copper indium sulfide (CIS) quantum dots are ideal for bioimaging applications, by being characterized by high molar absorption coefficients throughout the entire visible spectrum, high photoluminescence quantum yield, high tolerance to the presence of lattice defects, emission tunability from the red to the near-infrared spectral region by changing their dimensions and composition, and long lifetimes (hundreds of nanoseconds) enabling time-gated detection to increase signal-to-noise ratio. The present review collects: (i) the most common procedures used to synthesize stable CIS QDs and the possible strategies to enhance their colloidal stability in aqueous environment, a property needed for bioimaging applications; (ii) their photophysical properties and parameters that affect the energy and brightness of their photoluminescence; (iii) toxicity and bioimaging applications of CIS QDs, including tumor targeting, time-gated detection and multimodal imaging, as well as theranostics. Future perspectives are analyzed in view of advantages and potential limitations of CIS QDs compared to most traditional QDs.
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Affiliation(s)
- Giacomo Morselli
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, 40126, Italy.
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4
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Claveau S, Kindermann M, Papine A, Díaz-Riascos ZV, Délen X, Georges P, López-Alemany R, Tirado ÒM, Bertrand JR, Abasolo I, Cigler P, Treussart F. Harnessing subcellular-resolved organ distribution of cationic copolymer-functionalized fluorescent nanodiamonds for optimal delivery of active siRNA to a xenografted tumor in mice. NANOSCALE 2021; 13:9280-9292. [PMID: 33982741 DOI: 10.1039/d1nr00146a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Diamond nanoparticles (nanodiamonds) can transport active drugs in cultured cells as well as in vivo. However, in the latter case, methods allowing the determination of their bioavailability accurately are still lacking. A nanodiamond can be made fluorescent with a perfectly stable emission and a lifetime ten times longer than that of tissue autofluorescence. Taking advantage of these properties, we present an automated quantification method of fluorescent nanodiamonds (FND) in histological sections of mouse organs and tumors, after systemic injection. We use a home-made time-delayed fluorescence microscope comprising a custom pulsed laser source synchronized on the master clock of a gated intensified array detector. This setup allows ultra-high-resolution images (120 Mpixels in size) of whole mouse organ sections to be obtained, with subcellular resolution and single-particle sensitivity. As a proof-of-principle experiment, we quantified the biodistribution and aggregation state of new cationic FNDs capable of transporting small interfering RNA inhibiting the oncogene responsible for Ewing sarcoma. Image analysis showed a low yield of nanodiamonds in the tumor after intravenous injection. Thus, for the in vivo efficacy assay, we injected the nanomedicine into the tumor. We achieved a 28-fold inhibition of the oncogene. This method can readily be applied to other nanoemitters with ≈100 ns lifetime.
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Affiliation(s)
- Sandra Claveau
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, CentraleSupélec, LuMIn, 91190 Gif-sur-Yvette, France. and Université Paris-Saclay, Institut Gustave Roussy, CNRS, Metabolic and Systemic Aspects of Oncogenesis (METSY), 94805 Villejuif, France
| | - Marek Kindermann
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague, Czech Republic and Department of Chemical Engineering, University of Chemistry and Technology, 166 28 Prague, Czech Republic
| | | | - Zamira V Díaz-Riascos
- Drug Delivery & Targeting, Functional Validation & Preclinical Research (FVPR), CIBBIM-Nanomedicine, Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08035 Barcelona, Spain
| | - Xavier Délen
- Université Paris-Saclay, Institut d'Optique Graduate School, CNRS, Laboratoire Charles Fabry, 91127 Palaiseau, France
| | - Patrick Georges
- Université Paris-Saclay, Institut d'Optique Graduate School, CNRS, Laboratoire Charles Fabry, 91127 Palaiseau, France
| | - Roser López-Alemany
- Sarcoma Research Group, Oncobell Program, CIBERONC, Bellvitge Biomedical Research Institute (IDIBELL), 08908 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Òscar Martínez Tirado
- Sarcoma Research Group, Oncobell Program, CIBERONC, Bellvitge Biomedical Research Institute (IDIBELL), 08908 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Jean-Rémi Bertrand
- Université Paris-Saclay, Institut Gustave Roussy, CNRS, Metabolic and Systemic Aspects of Oncogenesis (METSY), 94805 Villejuif, France
| | - Ibane Abasolo
- Drug Delivery & Targeting, Functional Validation & Preclinical Research (FVPR), CIBBIM-Nanomedicine, Vall d'Hebron Institut de Recerca (VHIR), Universitat Autònoma de Barcelona (UAB), 08035 Barcelona, Spain and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 08035 Barcelona, Spain
| | - Petr Cigler
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague, Czech Republic
| | - François Treussart
- Université Paris-Saclay, ENS Paris-Saclay, CNRS, CentraleSupélec, LuMIn, 91190 Gif-sur-Yvette, France.
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NIR Imaging of the Integrin-Rich Head and Neck Squamous Cell Carcinoma Using Ternary Copper Indium Selenide/Zinc Sulfide-Based Quantum Dots. Cancers (Basel) 2020; 12:cancers12123727. [PMID: 33322532 PMCID: PMC7764319 DOI: 10.3390/cancers12123727] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 12/20/2022] Open
Abstract
The efficient intraoperative identification of cancers requires the development of the bright, minimally-toxic, tumor-specific near-infrared (NIR) probes as contrast agents. Luminescent semiconductor quantum dots (QDs) offer several unique advantages for in vivo cellular imaging by providing bright and photostable fluorescent probes. Here, we present the synthesis of ZnCuInSe/ZnS core/shell QDs emitting in NIR (~750 nm) conjugated to NAVPNLRGDLQVLAQKVART (A20FMDV2) peptide for targeting αvβ6 integrin-rich head and neck squamous cell carcinoma (HNSCC). Integrin αvβ6 is usually not detectable in nonpathological tissues, but is highly upregulated in HNSCC. QD-A20 showed αvβ6 integrin-specific binding in two-dimension (2D) monolayer and three-dimension (3D) spheroid in vitro HNSCC models. QD-A20 exhibit limited penetration (ca. 50 µm) in stroma-rich 3D spheroids. Finally, we demonstrated the potential of these QDs by time-gated fluorescence imaging of stroma-rich 3D spheroids placed onto mm-thick tissue slices to mimic imaging conditions in tissues. Overall, QD-A20 could be considered as highly promising nanoprobes for NIR bioimaging and imaging-guided surgery.
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Sarkar S, Le P, Geng J, Liu Y, Han Z, Zahid MU, Nall D, Youn Y, Selvin PR, Smith AM. Short-Wave Infrared Quantum Dots with Compact Sizes as Molecular Probes for Fluorescence Microscopy. J Am Chem Soc 2020; 142:3449-3462. [PMID: 31964143 PMCID: PMC7335634 DOI: 10.1021/jacs.9b11567] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Materials with short-wave infrared (SWIR) emission are promising contrast agents for in vivo animal imaging, providing high-contrast and high-resolution images of blood vessels in deep tissues. However, SWIR emitters have not been developed as molecular labels for microscopy applications in the life sciences, which require optimized probes that are bright, stable, and small. Here, we design and synthesize semiconductor quantum dots (QDs) with SWIR emission based on HgxCd1-xSe alloy cores red shifted to the SWIR by epitaxial deposition of thin HgxCd1-xS shells with a small band gap. By tuning alloy composition alone, the emission can be shifted across the visible-to-SWIR (VIR) spectra while maintaining a small and equal size, allowing direct comparisons of molecular labeling performance across a broad range of wavelength. After coating with click-functional multidentate polymers, the VIR-QD spectral series has high quantum yield in the SWIR (14-33%), compact size (13 nm hydrodynamic diameter), and long-term stability in aqueous media during continuous excitation. We show that these properties enable diverse applications of SWIR molecular probes for fluorescence microscopy using conjugates of antibodies, growth factors, and nucleic acids. A broadly useful outcome is a 10-55-fold enhancement of the signal-to-background ratio at both the single-molecule level and the ensemble level in the SWIR relative to visible wavelengths, primarily due to drastically reduced autofluorescence. We anticipate that VIR-QDs with SWIR emission will enable ultrasensitive molecular imaging of low-copy number analytes in biospecimens with high autofluorescence.
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Affiliation(s)
- Suresh Sarkar
- Department of Bioengineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Micro and Nanotechnology Laboratory , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Phuong Le
- Department of Bioengineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Micro and Nanotechnology Laboratory , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Junlong Geng
- Micro and Nanotechnology Laboratory , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Beckman Institute for Advanced Science and Technology , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Yang Liu
- Department of Bioengineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Micro and Nanotechnology Laboratory , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Zhiyuan Han
- Micro and Nanotechnology Laboratory , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Department of Materials Science and Engineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Mohammad U Zahid
- Department of Bioengineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Micro and Nanotechnology Laboratory , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Duncan Nall
- Department of Physics , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Center for the Physics of Living Cells , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Yeoan Youn
- Center for the Physics of Living Cells , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Center for Biophysics and Quantitative Biology , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Paul R Selvin
- Department of Physics , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Center for the Physics of Living Cells , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Center for Biophysics and Quantitative Biology , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - Andrew M Smith
- Department of Bioengineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Micro and Nanotechnology Laboratory , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Department of Materials Science and Engineering , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Carl R. Woese Institute for Genomic Biology , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
- Carle Illinois College of Medicine , Urbana , Illinois 61801 , United States
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Debayle M, Marchandier T, Xu X, Lequeux N, Pons T. pH-Sensitive Visible or Shortwave Infrared Quantum Dot Nanoprobes Using Conformation-Switchable Copolymeric Ligands. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25008-25016. [PMID: 31264837 DOI: 10.1021/acsami.9b06194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Intracellular and extracellular pH are key parameters in many physiological processes and diseases. For example, the extracellular pH of the tumor micro-environment is slightly more acidic than in healthy tissue. In vivo mapping of the extracellular pH within the tumor would therefore improve our understanding of the tumor physiology. Fluorescent semiconductor quantum dots (QDs) represent interesting probes for in vivo imaging, in particular in the shortwave infrared (SWIR) range. Here, pH-sensitive QD nanoprobes are developed using a conformation-switchable surface chemistry. The central fluorescent QD is coated with a copolymer ligand and conjugated to gold nanoparticle quenchers. As the pH decreases from physiological (7.5) to slightly acidic (5.5-6), the copolymer reversibly shrinks, which increases the energy transfer between the QD and the gold quenchers and modulates the QD fluorescence signal. This enables the design of ratiometric QD probes for biological pH range emitting in the visible or SWIR range. In addition, these probes can be easily encapsulated and remain functional within ghost erythrocyte membranes, which facilitate their in vivo application.
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Affiliation(s)
- Manon Debayle
- LPEM, UMR 8213, ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 75005 Paris , France
| | - Thomas Marchandier
- LPEM, UMR 8213, ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 75005 Paris , France
| | - Xiangzhen Xu
- LPEM, UMR 8213, ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 75005 Paris , France
| | - Nicolas Lequeux
- LPEM, UMR 8213, ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 75005 Paris , France
| | - Thomas Pons
- LPEM, UMR 8213, ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 75005 Paris , France
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Yang W, Srivastava PK, Han S, Jing L, Tu CC, Chen SL. Optomechanical Time-Gated Fluorescence Imaging Using Long-Lived Silicon Quantum Dot Nanoparticles. Anal Chem 2019; 91:5499-5503. [DOI: 10.1021/acs.analchem.9b00517] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Wenzhao Yang
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | | | - Shanshan Han
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lili Jing
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chang-Ching Tu
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Sung-Liang Chen
- University of Michigan-Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai 200240, China
- State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China
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9
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Sônego F, Bouccara S, Pons T, Lequeux N, Danckaert A, Tinevez JY, Alam IS, Shorte SL, Tournebize R. Imaging of Red-Shifted Light From Bioluminescent Tumors Using Fluorescence by Unbound Excitation From Luminescence. Front Bioeng Biotechnol 2019; 7:73. [PMID: 31024905 PMCID: PMC6460942 DOI: 10.3389/fbioe.2019.00073] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 03/15/2019] [Indexed: 12/02/2022] Open
Abstract
Early detection of tumors is today a major challenge and requires sensitive imaging methodologies coupled with new efficient probes. In vivo optical bioluminescence imaging has been widely used in the field of preclinical oncology to visualize tumors and several cancer cell lines have been genetically modified to provide bioluminescence signals. However, the light emitted by the majority of commonly used luciferases is usually in the blue part of the visible spectrum, where tissue absorption is still very high, making deep tissue imaging non-optimal, and calling for optimized optical imaging methodologies. We have previously shown that red-shifting of bioluminescence signal by Fluorescence Unbound Excitation from Luminescence (FUEL) is a mean to increase bioluminescence signal sensitivity detection in vivo. Here, we applied FUEL to tumor detection in two different subcutaneous tumor models: the auto-luminescent human embryonic kidney (HEK293) cell line and the murine B16-F10 melanoma cell line previously transfected with a plasmid encoding the Luc2 firefly luciferase. Tumor size and bioluminescence were measured over time and tumor vascularization characterized. We then locally injected near infrared emitting Quantum Dots (NIR QDs) in the tumor site and observed a red-shifting of bioluminescence signal by (FUEL) indicating that FUEL could be used to allow deeper tumor detection in mice.
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Affiliation(s)
- Fabiane Sônego
- UTechS Photonic BioImaging, C2RT, Institut Pasteur, Paris, France
| | - Sophie Bouccara
- UTechS Photonic BioImaging, C2RT, Institut Pasteur, Paris, France
| | - Thomas Pons
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris, CNRS UMR8213, PSL Research University, Université Pierre et Marie Curie, Sorbonne-Universités, Paris, France
| | - Nicolas Lequeux
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris, CNRS UMR8213, PSL Research University, Université Pierre et Marie Curie, Sorbonne-Universités, Paris, France
| | - Anne Danckaert
- UTechS Photonic BioImaging, C2RT, Institut Pasteur, Paris, France
| | | | - Israt S. Alam
- UTechS Photonic BioImaging, C2RT, Institut Pasteur, Paris, France
| | | | - Régis Tournebize
- UTechS Photonic BioImaging, C2RT, Unité Pathogénie Microbienne Moléculaire, Institut Pasteur, INSERM U1202, Paris, France
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10
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Pons T, Bouccara S, Loriette V, Lequeux N, Pezet S, Fragola A. In Vivo Imaging of Single Tumor Cells in Fast-Flowing Bloodstream Using Near-Infrared Quantum Dots and Time-Gated Imaging. ACS NANO 2019; 13:3125-3131. [PMID: 30835434 DOI: 10.1021/acsnano.8b08463] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Whereas in vivo fluorescence imaging of cells immobilized within tissues provides a valuable tool to a broad range of biological studies, it still lacks the sensitivity required to visualize isolated cells circulating fast in the bloodstream due, in particular, to the autofluorescence from endogenous fluorophores. Time-gated imaging of near-infrared emitting ZnCuInSe/ZnS quantum dots (QDs) with fluorescence lifetimes in the range of 150-300 ns enables the efficient rejection of fast autofluorescence photons and the selection of QD fluorescence photons, thus significantly increasing sensitivity. We labeled model erythrocytes as well as lymphoma cells using these QDs coated with a stable zwitterionic polymer surface chemistry. After reinjection in the bloodstream, we were able to image and count individual QD-labeled cells circulating at mm·s-1 velocities in blood vessels.
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Affiliation(s)
- Thomas Pons
- Laboratoire de Physique et Etude des Matériaux , ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 10, rue Vauquelin , 75005 Paris , France
| | - Sophie Bouccara
- Laboratoire de Physique et Etude des Matériaux , ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 10, rue Vauquelin , 75005 Paris , France
| | - Vincent Loriette
- Laboratoire de Physique et Etude des Matériaux , ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 10, rue Vauquelin , 75005 Paris , France
| | - Nicolas Lequeux
- Laboratoire de Physique et Etude des Matériaux , ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 10, rue Vauquelin , 75005 Paris , France
| | - Sophie Pezet
- Laboratoire Plasticité du Cerveau , ESPCI Paris, PSL Research University, CNRS , 10, rue Vauquelin , 75005 Paris , France
| | - Alexandra Fragola
- Laboratoire de Physique et Etude des Matériaux , ESPCI Paris, PSL Research University, CNRS, Sorbonne Université , 10, rue Vauquelin , 75005 Paris , France
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11
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Chetty SS, Praneetha S, Vadivel Murugan A, Govarthanan K, Verma RS. Microwave‐Assisted Synthesis of Quasi‐Pyramidal CuInS
2
–ZnS Nanocrystals for Enhanced Near‐Infrared Targeted Fluorescent Imaging of Subcutaneous Melanoma. ACTA ACUST UNITED AC 2018; 3:e1800127. [DOI: 10.1002/adbi.201800127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 09/24/2018] [Indexed: 01/22/2023]
Affiliation(s)
- S. Shashank Chetty
- Advanced Functional Nanostructured Materials LaboratoryCentre for Nanoscience and TechnologyMadanjeet School of Green Energy TechnologiesPondicherry University (A Central University) Puducherry 605014 India
| | - S. Praneetha
- Advanced Functional Nanostructured Materials LaboratoryCentre for Nanoscience and TechnologyMadanjeet School of Green Energy TechnologiesPondicherry University (A Central University) Puducherry 605014 India
| | - A. Vadivel Murugan
- Advanced Functional Nanostructured Materials LaboratoryCentre for Nanoscience and TechnologyMadanjeet School of Green Energy TechnologiesPondicherry University (A Central University) Puducherry 605014 India
| | - Kavitha Govarthanan
- Stem Cell and Molecular Biology LaboratoryBhupat and Jyoti Mehta School of BiosciencesDepartment of BiotechnologyIndian Institute of Technology‐Madras (IIT‐M) Chennai 600036 India
| | - Rama S. Verma
- Stem Cell and Molecular Biology LaboratoryBhupat and Jyoti Mehta School of BiosciencesDepartment of BiotechnologyIndian Institute of Technology‐Madras (IIT‐M) Chennai 600036 India
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12
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Delcanale P, Galstyan A, Daniliuc CG, Grecco HE, Abbruzzetti S, Faust A, Viappiani C, Strassert CA. Oxygen-Insensitive Aggregates of Pt(II) Complexes as Phosphorescent Labels of Proteins with Luminescence Lifetime-Based Readouts. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24361-24369. [PMID: 29989787 DOI: 10.1021/acsami.8b02709] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The synthesis and photophysical properties of a tailored Pt(II) complex are presented. The phosphorescence of its monomeric species in homogeneous solutions is quenched by interaction with the solvent and therefore absent even upon deoxygenation. However, aggregation-induced shielding from the environment and suppression of rotovibrational degrees of freedom trigger a phosphorescence turn-on that is not suppressed by molecular oxygen, despite possessing an excited-state lifetime ranging in the microsecond scale. Thus, the photoinduced production of reactive oxygen species is avoided by the suppression of diffusion-controlled Dexter-type energy transfer to triplet molecular oxygen. These aggregates emit with the characteristic green luminescence profile of monomeric complexes, indicating that Pt-Pt or excimeric interactions are negligible. Herein, we show that these aggregates can be used to label a model biomolecule (bovine serum albumin) with a microsecond-range luminescence. The protein stabilizes the aggregates, acting as a carrier in aqueous environments. Despite spectral overlaps, the green phosphorescence can be separated by time-gated detection from the dominant autofluorescence of the protein arising from a covalently bound green fluorophore that emits in the nanosecond range. Interestingly, the aggregates also acted as energy donors able to sensitize the emission of a fraction of the fluorophores bound to the protein. This resulted in a microsecond-range luminescence of the fluorescent acceptors and a shortening of the excited-state lifetime of the phosphorescent aggregates. The process that can be traced by a 1000-fold increase in the acceptor's lifetime mirrors the donor's triplet character. The implications for phosphorescence lifetime imaging are discussed.
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Affiliation(s)
- Pietro Delcanale
- Dipartimento di Scienze Matematiche , Fisiche e Informatiche , Parco Area delle Scienze 7A , 43124 Parma , Italy
| | - Anzhela Galstyan
- Physikalisches Institut and Center for Nanotechnology , Westfälische Wilhelms-Universität Münster , Heisenbergstraße 11 , D-48149 Münster , Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut , Westfälische Wilhelms-Universität Münster , Corrensstraße 40 , D-48149 Münster , Germany
| | - Hernan E Grecco
- Departamento de Física , FCEyN, UBA and IFIBA, CONICET, Pabellón 1, Ciudad Universitaria , 1428 Buenos Aires , Argentina
| | - Stefania Abbruzzetti
- Dipartimento di Scienze Matematiche , Fisiche e Informatiche , Parco Area delle Scienze 7A , 43124 Parma , Italy
| | - Andreas Faust
- University Hospital Münster and European Institute for Molecular Imaging , Westfälische Wilhelms-Universität Münster , Waldeyerstraße 15 , D-48149 Münster , Germany
| | - Cristiano Viappiani
- Dipartimento di Scienze Matematiche , Fisiche e Informatiche , Parco Area delle Scienze 7A , 43124 Parma , Italy
| | - Cristian A Strassert
- Physikalisches Institut and Center for Nanotechnology , Westfälische Wilhelms-Universität Münster , Heisenbergstraße 11 , D-48149 Münster , Germany
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13
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Trapiella-Alfonso L, Pons T, Lequeux N, Leleu L, Grimaldi J, Tasso M, Oujagir E, Seguin J, d'Orlyé F, Girard C, Doan BT, Varenne A. Clickable-Zwitterionic Copolymer Capped-Quantum Dots for in Vivo Fluorescence Tumor Imaging. ACS APPLIED MATERIALS & INTERFACES 2018; 10:17107-17116. [PMID: 29701456 DOI: 10.1021/acsami.8b04708] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
In the last decades, fluorescent quantum dots (QDs) have appeared as high-performance biological fluorescent nanoprobes and have been explored for a variety of biomedical optical imaging applications. However, many central challenges still exist concerning the control of the surface chemistry to ensure high biocompatibility, low toxicity, antifouling, and specific active targeting properties. Regarding in vivo applications, circulation time and clearance of the nanoprobe are also key parameters to control the design and characterization of new optical imaging agents. Herein, the complete design and characterization of a peptide-near-infrared-QD-based nanoprobe for biomedical optical imaging is presented from the synthesis of the QDs and the zwitterionic-azide copolymer ligand, enabling a bio-orthogonal coupling, till the final in vivo test through all the characterization steps. The developed nanoprobes show high fluorescence emission, controlled grafting rate, low toxicity, in vitro active specific targeting, and in vivo long circulating blood time. This is, to our knowledge, the first report characterizing the in vivo circulation kinetics and tumor accumulation of targeted zwitterionic QDs.
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Affiliation(s)
- Laura Trapiella-Alfonso
- PSL Research University, Chimie ParisTech, Unité de Technologies Chimiques et Biologiques pour la Santé , 75005 Paris , France
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (U 1022) , 75006 Paris , France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258 , 75006 Paris , France
- Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé , 75006 Paris , France
- Laboratoire de Physique et d'Étude des Matériaux (LPEM), ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC Univ. Paris 6 , 10 rue Vauquelin , F-75231 Paris Cedex 5 , France
| | - Thomas Pons
- Laboratoire de Physique et d'Étude des Matériaux (LPEM), ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC Univ. Paris 6 , 10 rue Vauquelin , F-75231 Paris Cedex 5 , France
| | - Nicolas Lequeux
- Laboratoire de Physique et d'Étude des Matériaux (LPEM), ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC Univ. Paris 6 , 10 rue Vauquelin , F-75231 Paris Cedex 5 , France
| | - Ludovic Leleu
- PSL Research University, Chimie ParisTech, Unité de Technologies Chimiques et Biologiques pour la Santé , 75005 Paris , France
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (U 1022) , 75006 Paris , France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258 , 75006 Paris , France
- Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé , 75006 Paris , France
| | - Juliette Grimaldi
- PSL Research University, Chimie ParisTech, Unité de Technologies Chimiques et Biologiques pour la Santé , 75005 Paris , France
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (U 1022) , 75006 Paris , France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258 , 75006 Paris , France
- Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé , 75006 Paris , France
- Laboratoire de Physique et d'Étude des Matériaux (LPEM), ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC Univ. Paris 6 , 10 rue Vauquelin , F-75231 Paris Cedex 5 , France
| | - Mariana Tasso
- Laboratoire de Physique et d'Étude des Matériaux (LPEM), ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC Univ. Paris 6 , 10 rue Vauquelin , F-75231 Paris Cedex 5 , France
| | - Edward Oujagir
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (U 1022) , 75006 Paris , France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258 , 75006 Paris , France
- Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé , 75006 Paris , France
| | - Johanne Seguin
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (U 1022) , 75006 Paris , France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258 , 75006 Paris , France
- Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé , 75006 Paris , France
| | - Fanny d'Orlyé
- PSL Research University, Chimie ParisTech, Unité de Technologies Chimiques et Biologiques pour la Santé , 75005 Paris , France
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (U 1022) , 75006 Paris , France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258 , 75006 Paris , France
- Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé , 75006 Paris , France
| | - Christian Girard
- PSL Research University, Chimie ParisTech, Unité de Technologies Chimiques et Biologiques pour la Santé , 75005 Paris , France
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (U 1022) , 75006 Paris , France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258 , 75006 Paris , France
- Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé , 75006 Paris , France
| | - Bich-Thuy Doan
- PSL Research University, Chimie ParisTech, Unité de Technologies Chimiques et Biologiques pour la Santé , 75005 Paris , France
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (U 1022) , 75006 Paris , France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258 , 75006 Paris , France
- Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé , 75006 Paris , France
| | - Anne Varenne
- PSL Research University, Chimie ParisTech, Unité de Technologies Chimiques et Biologiques pour la Santé , 75005 Paris , France
- INSERM, Unité de Technologies Chimiques et Biologiques pour la Santé (U 1022) , 75006 Paris , France
- CNRS, Unité de Technologies Chimiques et Biologiques pour la santé UMR 8258 , 75006 Paris , France
- Université Paris Descartes, Sorbonne Paris Cité, Unité de Technologies Chimiques et Biologiques pour la Santé , 75006 Paris , France
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14
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Ulep TH, Yoon JY. Challenges in paper-based fluorogenic optical sensing with smartphones. NANO CONVERGENCE 2018; 5:14. [PMID: 29755926 PMCID: PMC5937860 DOI: 10.1186/s40580-018-0146-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 04/27/2018] [Indexed: 05/23/2023]
Abstract
Application of optically superior, tunable fluorescent nanotechnologies have long been demonstrated throughout many chemical and biological sensing applications. Combined with microfluidics technologies, i.e. on lab-on-a-chip platforms, such fluorescent nanotechnologies have often enabled extreme sensitivity, sometimes down to single molecule level. Within recent years there has been a peak interest in translating fluorescent nanotechnology onto paper-based platforms for chemical and biological sensing, as a simple, low-cost, disposable alternative to conventional silicone-based microfluidic substrates. On the other hand, smartphone integration as an optical detection system as well as user interface and data processing component has been widely attempted, serving as a gateway to on-board quantitative processing, enhanced mobility, and interconnectivity with informational networks. Smartphone sensing can be integrated to these paper-based fluorogenic assays towards demonstrating extreme sensitivity as well as ease-of-use and low-cost. However, with these emerging technologies there are always technical limitations that must be addressed; for example, paper's autofluorescence that perturbs fluorogenic sensing; smartphone flash's limitations in fluorescent excitation; smartphone camera's limitations in detecting narrow-band fluorescent emission, etc. In this review, physical optical setups, digital enhancement algorithms, and various fluorescent measurement techniques are discussed and pinpointed as areas of opportunities to further improve paper-based fluorogenic optical sensing with smartphones.
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Affiliation(s)
- Tiffany-Heather Ulep
- Department of Biomedical Engineering, The University of Arizona, Tucson, AZ 85721 USA
| | - Jeong-Yeol Yoon
- Department of Biomedical Engineering, The University of Arizona, Tucson, AZ 85721 USA
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15
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Zhang KY, Yu Q, Wei H, Liu S, Zhao Q, Huang W. Long-Lived Emissive Probes for Time-Resolved Photoluminescence Bioimaging and Biosensing. Chem Rev 2018; 118:1770-1839. [DOI: 10.1021/acs.chemrev.7b00425] [Citation(s) in RCA: 479] [Impact Index Per Article: 79.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kenneth Yin Zhang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Qi Yu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Huanjie Wei
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Shujuan Liu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Qiang Zhao
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, P. R. China
- Shaanxi
Institute of Flexible Electronics (SIFE), Northwestern Polytechnical University (NPU), Xi’an 710072, P. R. China
- Key
Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced
Materials (IAM), Jiangsu National Synergetic Innovation Center for
Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211800, P. R. China
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16
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Coughlan C, Ibáñez M, Dobrozhan O, Singh A, Cabot A, Ryan KM. Compound Copper Chalcogenide Nanocrystals. Chem Rev 2017; 117:5865-6109. [PMID: 28394585 DOI: 10.1021/acs.chemrev.6b00376] [Citation(s) in RCA: 327] [Impact Index Per Article: 46.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review captures the synthesis, assembly, properties, and applications of copper chalcogenide NCs, which have achieved significant research interest in the last decade due to their compositional and structural versatility. The outstanding functional properties of these materials stems from the relationship between their band structure and defect concentration, including charge carrier concentration and electronic conductivity character, which consequently affects their optoelectronic, optical, and plasmonic properties. This, combined with several metastable crystal phases and stoichiometries and the low energy of formation of defects, makes the reproducible synthesis of these materials, with tunable parameters, remarkable. Further to this, the review captures the progress of the hierarchical assembly of these NCs, which bridges the link between their discrete and collective properties. Their ubiquitous application set has cross-cut energy conversion (photovoltaics, photocatalysis, thermoelectrics), energy storage (lithium-ion batteries, hydrogen generation), emissive materials (plasmonics, LEDs, biolabelling), sensors (electrochemical, biochemical), biomedical devices (magnetic resonance imaging, X-ray computer tomography), and medical therapies (photochemothermal therapies, immunotherapy, radiotherapy, and drug delivery). The confluence of advances in the synthesis, assembly, and application of these NCs in the past decade has the potential to significantly impact society, both economically and environmentally.
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Affiliation(s)
- Claudia Coughlan
- Department of Chemical Sciences and Bernal Institute, University of Limerick , Limerick, Ireland
| | - Maria Ibáñez
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain
| | - Oleksandr Dobrozhan
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain.,Department of Electronics and Computing, Sumy State University , 2 Rymskogo-Korsakova st., 40007 Sumy, Ukraine
| | - Ajay Singh
- Materials Physics & Applications Division: Center for Integrated Nanotechnologies, Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States
| | - Andreu Cabot
- Catalonia Energy Research Institute - IREC, Sant Adria de Besos , Jardins de les Dones de Negre n.1, Pl. 2, 08930 Barcelona, Spain.,ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Kevin M Ryan
- Department of Chemical Sciences and Bernal Institute, University of Limerick , Limerick, Ireland
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17
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Xu G, Zeng S, Zhang B, Swihart MT, Yong KT, Prasad PN. New Generation Cadmium-Free Quantum Dots for Biophotonics and Nanomedicine. Chem Rev 2016; 116:12234-12327. [DOI: 10.1021/acs.chemrev.6b00290] [Citation(s) in RCA: 395] [Impact Index Per Article: 49.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Gaixia Xu
- Key
Laboratory of Optoelectronics Devices and Systems of Ministry of Education/Guangdong
Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People’s Republic of China
- CINTRA
CNRS/NTU/THALES,
UMI 3288, Research Techno Plaza, 50
Nanyang Drive, Border X Block, Singapore 637553, Singapore
| | - Shuwen Zeng
- School
of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
- CINTRA
CNRS/NTU/THALES,
UMI 3288, Research Techno Plaza, 50
Nanyang Drive, Border X Block, Singapore 637553, Singapore
| | - Butian Zhang
- School
of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | | | - Ken-Tye Yong
- School
of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
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18
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Nakabayashi T, Ohta N. Sensing of intracellular environments by fluorescence lifetime imaging of exogenous fluorophores. ANAL SCI 2016; 31:275-85. [PMID: 25864670 DOI: 10.2116/analsci.31.275] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Fluorescence lifetime imaging (FLIM) has been recognized as a powerful microscopy technique to examine environments in living systems. The fluorescence lifetime does not depend on the photobleaching and optical conditions, which allows us to obtain quantitative information on intracellular environments by analyzing the fluorescence lifetime. A variety of exogenous fluorophores have been applied in FLIM measurements to examine cellular processes. Information on the correlation between the fluorescence lifetime and the physiological parameters is essential to elucidate the cellular environments from the fluorescence lifetime measurements of exogenous fluorophores. In this review, exogenous fluorophores used for lifetime-based sensing are summarized, with the expectation that it becomes a basis for selecting the fluorophore used to investigate the intracellular environment with FLIM. Experimental results of the intracellular sensing of pH, metal ions, oxygen, viscosity, and other physiological parameters on the basis of the FLIM measurements are described along with a brief explanation of the mechanism of the change in the fluorescence lifetime.
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19
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Jahn K, Buschmann V, Hille C. Simultaneous Fluorescence and Phosphorescence Lifetime Imaging Microscopy in Living Cells. Sci Rep 2015; 5:14334. [PMID: 26390855 PMCID: PMC4585718 DOI: 10.1038/srep14334] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 08/25/2015] [Indexed: 02/06/2023] Open
Abstract
In living cells, there are always a plethora of processes taking place at the same time. Their precise regulation is the basis of cellular functions, since small failures can lead to severe dysfunctions. For a comprehensive understanding of intracellular homeostasis, simultaneous multiparameter detection is a versatile tool for revealing the spatial and temporal interactions of intracellular parameters. Here, a recently developed time-correlated single-photon counting (TCSPC) board was evaluated for simultaneous fluorescence and phosphorescence lifetime imaging microscopy (FLIM/PLIM). Therefore, the metabolic activity in insect salivary glands was investigated by recording ns-decaying intrinsic cellular fluorescence, mainly related to oxidized flavin adenine dinucleotide (FAD) and the μs-decaying phosphorescence of the oxygen-sensitive ruthenium-complex Kr341. Due to dopamine stimulation, the metabolic activity of salivary glands increased, causing a higher pericellular oxygen consumption and a resulting increase in Kr341 phosphorescence decay time. Furthermore, FAD fluorescence decay time decreased, presumably due to protein binding, thus inducing a quenching of FAD fluorescence decay time. Through application of the metabolic drugs antimycin and FCCP, the recorded signals could be assigned to a mitochondrial origin. The dopamine-induced changes could be observed in sequential FLIM and PLIM recordings, as well as in simultaneous FLIM/PLIM recordings using an intermediate TCSPC timing resolution.
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Affiliation(s)
- Karolina Jahn
- Physical Chemistry/ALS ComBi, Institute of Chemistry, University of Potsdam, Potsdam, Germany
| | | | - Carsten Hille
- Physical Chemistry/ALS ComBi, Institute of Chemistry, University of Potsdam, Potsdam, Germany
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20
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Bouccara S, Sitbon G, Fragola A, Loriette V, Lequeux N, Pons T. Enhancing fluorescence in vivo imaging using inorganic nanoprobes. Curr Opin Biotechnol 2015; 34:65-72. [DOI: 10.1016/j.copbio.2014.11.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 11/16/2014] [Indexed: 01/24/2023]
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