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Jayanthi VSPKSA, Das AB, Saxena U. Recent advances in biosensor development for the detection of cancer biomarkers. Biosens Bioelectron 2016; 91:15-23. [PMID: 27984706 DOI: 10.1016/j.bios.2016.12.014] [Citation(s) in RCA: 254] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 11/24/2016] [Accepted: 12/07/2016] [Indexed: 02/08/2023]
Abstract
Cancer is the second largest disease throughout the world with an increasing mortality rate over the past few years. The patient's survival rate is uncertain due to the limitations of cancer diagnosis and therapy. Early diagnosis of cancer is decisive for its successful treatment. A biomarker-based cancer diagnosis may significantly improve the early diagnosis and subsequent treatment. Biosensors play a crucial role in the detection of biomarkers as they are easy to use, portable, and can do analysis in real time. This review describes various biosensors designed for detecting nucleic acid and protein-based cancer biomarkers for cancer diagnosis. It mainly lays emphasis on different approaches to use electrochemical, optical, and mass-based transduction systems in cancer biomarker detection. It also highlights the analytical performances of various biosensor designs concerning cancer biomarkers in detail.
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Affiliation(s)
| | - Asim Bikas Das
- Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India
| | - Urmila Saxena
- Department of Biotechnology, National Institute of Technology Warangal, Warangal 506004, Telangana, India.
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Shojaei TR, Salleh MAM, Sijam K, Rahim RA, Mohsenifar A, Safarnejad R, Tabatabaei M. Detection of Citrus tristeza virus by using fluorescence resonance energy transfer-based biosensor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 169:216-22. [PMID: 27380305 DOI: 10.1016/j.saa.2016.06.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 06/12/2016] [Accepted: 06/28/2016] [Indexed: 05/11/2023]
Abstract
Due to the low titer or uneven distribution of Citrus tristeza virus (CTV) in field samples, detection of CTV by using conventional detection techniques may be difficult. Therefore, in the present work, the cadmium-telluride quantum dots (QDs) was conjugated with a specific antibody against coat protein (CP) of CTV, and the CP were immobilized on the surface of gold nanoparticles (AuNPs) to develop a specific and sensitive fluorescence resonance energy transfer (FRET)-based nanobiosensor for detecting CTV. The maximum FRET efficiency for the developed nano-biosensor was observed at 60% in AuNPs-CP/QDs-Ab ratio of 1:8.5. The designed system showed higher sensitivity and specificity over enzyme linked immunosorbent assay (ELISA) with a limit of detection of 0.13μgmL(-1) and 93% and 94% sensitivity and specificity, respectively. As designed sensor is rapid, sensitive, specific and efficient in detecting CTV, this could be envisioned for diagnostic applications, surveillance and plant certification program.
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Affiliation(s)
- Taha Roodbar Shojaei
- Institute of Advanced Technology (ITMA), Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Mohamad Amran Mohd Salleh
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Kamaruzaman Sijam
- Department of Plant Protection, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Raha Abdul Rahim
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Afshin Mohsenifar
- Research and Development Department, Nanozino, 16536-43181 Tehran, Iran
| | - Reza Safarnejad
- Department of Plant Viruses, Iranian Institute of Plant Protection, Tehran, Iran
| | - Meisam Tabatabaei
- Nanosystems Research Team (NRTeam), Microbial Biotechnology and Biosafety Dept., Agricultural Biotechnology Research Institute of Iran (ABRII), Karaj, Iran
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53
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Oh E, Huston AL, Shabaev A, Efros A, Currie M, Susumu K, Bussmann K, Goswami R, Fatemi FK, Medintz IL. Energy Transfer Sensitization of Luminescent Gold Nanoclusters: More than Just the Classical Förster Mechanism. Sci Rep 2016; 6:35538. [PMID: 27774984 PMCID: PMC5075882 DOI: 10.1038/srep35538] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 09/28/2016] [Indexed: 12/19/2022] Open
Abstract
Luminescent gold nanocrystals (AuNCs) are a recently-developed material with potential optic, electronic and biological applications. They also demonstrate energy transfer (ET) acceptor/sensitization properties which have been ascribed to Förster resonance energy transfer (FRET) and, to a lesser extent, nanosurface energy transfer (NSET). Here, we investigate AuNC acceptor interactions with three structurally/functionally-distinct donor classes including organic dyes, metal chelates and semiconductor quantum dots (QDs). Donor quenching was observed for every donor-acceptor pair although AuNC sensitization was only observed from metal-chelates and QDs. FRET theory dramatically underestimated the observed energy transfer while NSET-based damping models provided better fits but could not reproduce the experimental data. We consider additional factors including AuNC magnetic dipoles, density of excited-states, dephasing time, and enhanced intersystem crossing that can also influence ET. Cumulatively, data suggests that AuNC sensitization is not by classical FRET or NSET and we provide a simplified distance-independent ET model to fit such experimental data.
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Affiliation(s)
- Eunkeu Oh
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
- Sotera Defense Solutions, Inc. Columbia, MD 21046, USA
| | - Alan L. Huston
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Andrew Shabaev
- Center for Computational Material Science Code 6390, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Alexander Efros
- Center for Computational Material Science Code 6390, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Marc Currie
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Kimihiro Susumu
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
- Sotera Defense Solutions, Inc. Columbia, MD 21046, USA
| | - Konrad Bussmann
- Materials and Sensors Branch Code 6361, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Ramasis Goswami
- Multifunctional Materials Code 6351, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Fredrik K. Fatemi
- Optical Sciences Division Code 5600, U.S. Naval Research Laboratory, Washington, DC 20375, USA
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering Code 6900, U.S. Naval Research Laboratory, Washington, DC 20375, USA
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54
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Qaddare SH, Salimi A. Amplified fluorescent sensing of DNA using luminescent carbon dots and AuNPs/GO as a sensing platform: A novel coupling of FRET and DNA hybridization for homogeneous HIV-1 gene detection at femtomolar level. Biosens Bioelectron 2016; 89:773-780. [PMID: 27816581 DOI: 10.1016/j.bios.2016.10.033] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Revised: 10/07/2016] [Accepted: 10/18/2016] [Indexed: 02/07/2023]
Abstract
The demand for simple, sensitive, affordable, and selective DNA biosensors is willing, due to the important role of DNA detection in the areas of disease diagnostics, environment monitoring and food safety. The presented work is devoted to the fabrication of an ultrasensitive homogeneous biosensor for the detection of DNA sequences related to HIV based on fluorescence resonance energy transfer(FRET) between carbon dots(CDs) and AuNPs as nanoquenchers. CDs as fluorophore with average size 3-4nm were prepared by hydrothermal treatment of histidine. In this respect, the hybridization was occurring between the assemblies of fluorescence CDs functionalized 5-amino-labeled oligonucleotides as capture probe and label free oligonucleotides as detection probe. Due to strong fluorescence and good biocompatibility of CDs, the capture probe was covalently conjugated to CDs. In the presence of the target probe, the association between capture probe-CDs and detection probe is stronger than that between capture probe-CDs and AuNPs, leading to the release of the capture probe-CDs from AuNPs, resulting in the recovery of the fluorescence of CDs. This oligonucleotides detection probe was observed to detect target oligonucleotides specifically and sensitively in a linear range from 50.0fM to 1.0nM with a detection limit of 15fM. Furthermore, the sensitivity of this FRET strategy amplified using AuNPs/graphene oxide nanocomposite as quencher. The Sensor response indicates only the complementary sequence showing an obvious change signal in comparison to non-complementary and two bases mismatched sequences. Moreover, satisfactory results from determination of HIV DNA target in human serum were obtained showing great potential of the proposed method for real sample analysis. The proposed biosensor with highly biocompatibility and nontoxicity, can be developed for detection of other DNA biomarkers.
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Affiliation(s)
- Somaye Hamd Qaddare
- Department of Chemistry, University of Kurdistan, 66177-15175, Sanandaj, Iran
| | - Abdollah Salimi
- Department of Chemistry, University of Kurdistan, 66177-15175, Sanandaj, Iran; Research Center for Nanotechnology, University of Kurdistan, 66177-15175, Sanandaj, Iran.
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Junager NPL, Kongsted J, Astakhova K. Revealing Nucleic Acid Mutations Using Förster Resonance Energy Transfer-Based Probes. SENSORS 2016; 16:s16081173. [PMID: 27472344 PMCID: PMC5017339 DOI: 10.3390/s16081173] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 07/18/2016] [Accepted: 07/19/2016] [Indexed: 01/08/2023]
Abstract
Nucleic acid mutations are of tremendous importance in modern clinical work, biotechnology and in fundamental studies of nucleic acids. Therefore, rapid, cost-effective and reliable detection of mutations is an object of extensive research. Today, Förster resonance energy transfer (FRET) probes are among the most often used tools for the detection of nucleic acids and in particular, for the detection of mutations. However, multiple parameters must be taken into account in order to create efficient FRET probes that are sensitive to nucleic acid mutations. In this review; we focus on the design principles for such probes and available computational methods that allow for their rational design. Applications of advanced, rationally designed FRET probes range from new insights into cellular heterogeneity to gaining new knowledge of nucleic acid structures directly in living cells.
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Affiliation(s)
- Nina P L Junager
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
| | - Jacob Kongsted
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
| | - Kira Astakhova
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark.
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Palomo V, Díaz SA, Stewart MH, Susumu K, Medintz IL, Dawson PE. 3,4-Dihydroxyphenylalanine Peptides as Nonperturbative Quantum Dot Sensors of Aminopeptidase. ACS NANO 2016; 10:6090-9. [PMID: 27206058 PMCID: PMC4968404 DOI: 10.1021/acsnano.6b01682] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Fluorescence-based assays for hydrolases that cleave within the substrate (endopeptidases) are common, while developing substrates for proteases that selectively cleave from peptide termini (exopeptidases) is more challenging, since the termini are specifically recognized by the enzyme and cannot be modified to facilitate a Förster resonance energy transfer (FRET)-based approach. The development of a robust system that enables the quenching of fluorescent particles by simple amino acid side chains would find broad utility for peptide sensors and would be advantageous for exopeptidases. Here we describe a quantum dot (QD)-based electron transfer (ET) sensor that is able to allow direct, quantitative monitoring of both exopeptidase and endopeptidase activity. The incorporation of 3,4-dihydroxyphenylalanine (DOPA) into the sequence of a peptide allows for the quenching of QD photoluminescence through an ET mechanism. DOPA is a nonproteinogenic amino acid that can replace a phenylalanine or tyrosine residue in a peptide sequence without severely altering structural properties, allowing for its introduction at multiple positions within a biologically active peptide substrate. Consequently, the quenching system presented here is ideally suited for incorporation into diverse peptide substrates for enzyme recognition, digestion, and activity sensing. Our findings suggest a broad utility of a small ET-capable amino acid side chain in detecting enzyme activity through ET-mediated QD luminescence quenching.
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Affiliation(s)
- Valle Palomo
- Department of Chemistry, The Scripps Research Institute, La Jolla, California, 92037 (USA)
| | - Sebastián A. Díaz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C., 20375 (USA)
| | - Michael H. Stewart
- Optical Sciences Division, Code 5611, U.S. Naval Research Laboratory, Washington, D.C., 20375 (USA)
| | - Kimihiro Susumu
- Optical Sciences Division, Code 5611, U.S. Naval Research Laboratory, Washington, D.C., 20375 (USA)
| | - Igor L. Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900, U.S. Naval Research Laboratory, Washington, D.C., 20375 (USA)
| | - Philip E. Dawson
- Department of Chemistry, The Scripps Research Institute, La Jolla, California, 92037 (USA)
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57
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Kim JE, Choi JH, Colas M, Kim DH, Lee H. Gold-based hybrid nanomaterials for biosensing and molecular diagnostic applications. Biosens Bioelectron 2016; 80:543-559. [DOI: 10.1016/j.bios.2016.02.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 01/23/2016] [Accepted: 02/06/2016] [Indexed: 10/22/2022]
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58
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Huang Y, Hemmer E, Rosei F, Vetrone F. Multifunctional Liposome Nanocarriers Combining Upconverting Nanoparticles and Anticancer Drugs. J Phys Chem B 2016; 120:4992-5001. [DOI: 10.1021/acs.jpcb.6b02013] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yue Huang
- Institut
National de la Recherche Scientifique - Énergie, Matériaux
et Télécommunications, Université du Québec, Varennes, Québec J3X 1S2, Canada
| | - Eva Hemmer
- Institut
National de la Recherche Scientifique - Énergie, Matériaux
et Télécommunications, Université du Québec, Varennes, Québec J3X 1S2, Canada
| | - Federico Rosei
- Institut
National de la Recherche Scientifique - Énergie, Matériaux
et Télécommunications, Université du Québec, Varennes, Québec J3X 1S2, Canada
- Institute
for Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, PR China
- Centre
for Self-Assembled Chemical Structures, McGill University, Montreal, Québec H3A 2K6, Canada
| | - Fiorenzo Vetrone
- Institut
National de la Recherche Scientifique - Énergie, Matériaux
et Télécommunications, Université du Québec, Varennes, Québec J3X 1S2, Canada
- Institute
for Fundamental and Frontier Science, University of Electronic Science and Technology of China, Chengdu, PR China
- Centre
for Self-Assembled Chemical Structures, McGill University, Montreal, Québec H3A 2K6, Canada
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59
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Zarschler K, Rocks L, Licciardello N, Boselli L, Polo E, Garcia KP, De Cola L, Stephan H, Dawson KA. Ultrasmall inorganic nanoparticles: State-of-the-art and perspectives for biomedical applications. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1663-701. [PMID: 27013135 DOI: 10.1016/j.nano.2016.02.019] [Citation(s) in RCA: 182] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/08/2016] [Accepted: 02/15/2016] [Indexed: 12/31/2022]
Abstract
Ultrasmall nanoparticulate materials with core sizes in the 1-3nm range bridge the gap between single molecules and classical, larger-sized nanomaterials, not only in terms of spatial dimension, but also as regards physicochemical and pharmacokinetic properties. Due to these unique properties, ultrasmall nanoparticles appear to be promising materials for nanomedicinal applications. This review overviews the different synthetic methods of inorganic ultrasmall nanoparticles as well as their properties, characterization, surface modification and toxicity. We moreover summarize the current state of knowledge regarding pharmacokinetics, biodistribution and targeting of nanoscale materials. Aside from addressing the issue of biomolecular corona formation and elaborating on the interactions of ultrasmall nanoparticles with individual cells, we discuss the potential diagnostic, therapeutic and theranostic applications of ultrasmall nanoparticles in the emerging field of nanomedicine in the final part of this review.
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Affiliation(s)
- Kristof Zarschler
- Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden - Rossendorf, Bautzner Landstraße 400, Dresden, Germany.
| | - Louise Rocks
- Centre For BioNano Interactions (CBNI), School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Nadia Licciardello
- Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden - Rossendorf, Bautzner Landstraße 400, Dresden, Germany; Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Science et d'Ingénierie Supramoléculaires (ISIS), 8 allée Gaspard Monge, Strasbourg, France; Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT) Campus North, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, Germany
| | - Luca Boselli
- Centre For BioNano Interactions (CBNI), School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Ester Polo
- Centre For BioNano Interactions (CBNI), School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Karina Pombo Garcia
- Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden - Rossendorf, Bautzner Landstraße 400, Dresden, Germany
| | - Luisa De Cola
- Laboratoire de Chimie et des Biomatériaux Supramoléculaires, Institut de Science et d'Ingénierie Supramoléculaires (ISIS), 8 allée Gaspard Monge, Strasbourg, France; Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT) Campus North, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, Germany
| | - Holger Stephan
- Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden - Rossendorf, Bautzner Landstraße 400, Dresden, Germany
| | - Kenneth A Dawson
- Centre For BioNano Interactions (CBNI), School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
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Nguyen HTP, Allard-Vannier E, Gaillard C, Eddaoudi I, Miloudi L, Soucé M, Chourpa I, Munnier E. On the interaction of alginate-based core-shell nanocarriers with keratinocytes in vitro. Colloids Surf B Biointerfaces 2016; 142:272-280. [PMID: 26962764 DOI: 10.1016/j.colsurfb.2016.02.055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 02/24/2016] [Accepted: 02/25/2016] [Indexed: 01/30/2023]
Abstract
Calcium alginate nanocarriers (CaANCs) were developed as a potential tool for delivery of hydrophobic active molecules such as pharmaceutical and cosmetic active ingredients. In this study, we focused on interactions between CaANCs and keratinocytes in culture and examined toxicity, internalization and drug release. Prior to cellular interactions, cryogenic transmission electron microscopy images showed that CaANCs appear as regular, spherical and dense particles, giving evidence of the surface gelation of CaANCs. Their size, around 200nm, was stable under tested conditions (temperature, culture media, presence of serum and presence of encapsulated dye), and their toxicity on keratinocytes was very low. Flow cytometry assays showed that CaANCs are internalized into keratinocytes by endocytosis with a predominant implication of the caveolae-mediated route. Förster resonance energy transfer (FRET) demonstrated that after a 2h contact, the release of CaANC contents in the cytoplasm of keratinocytes was almost complete. The endocytosis of CaANCs by a lysosome-free pathway, and the rapid release of their contents inside keratinocytes, will allow vectorized molecules to fully exhibit their pharmacological or cosmetic activity.
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Affiliation(s)
- Hoang Truc Phuong Nguyen
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, 31 avenue Monge, 37200 Tours, France
| | - Emilie Allard-Vannier
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, 31 avenue Monge, 37200 Tours, France
| | - Cédric Gaillard
- U.R. 1268 BIA Biopolymères Interactions Assemblages INRA, rue de la Géraudière, 44316 Nantes, France
| | - Imane Eddaoudi
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, 31 avenue Monge, 37200 Tours, France
| | - Lynda Miloudi
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, 31 avenue Monge, 37200 Tours, France
| | - Martin Soucé
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, 31 avenue Monge, 37200 Tours, France
| | - Igor Chourpa
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, 31 avenue Monge, 37200 Tours, France
| | - Emilie Munnier
- Université François Rabelais de Tours, EA 6295 Nanomédicaments et Nanosondes, 31 avenue Monge, 37200 Tours, France.
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Prajapati R, Bhattacharya A, Mukherjee TK. Resonant excitation energy transfer from carbon dots to different sized silver nanoparticles. Phys Chem Chem Phys 2016; 18:28911-28918. [DOI: 10.1039/c6cp05451j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In the present study we have demonstrated the size-dependent resonant nanometal surface energy transfer (NSET) from carbon dots (CDs) to silver nanoparticles (Ag NPs) using photoluminescence spectroscopy.
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Affiliation(s)
- Roopali Prajapati
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Simrol
- Indore-453552
- India
| | - Arpan Bhattacharya
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Simrol
- Indore-453552
- India
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Li SS, Ji YH, Zhang SQ, Zhong SL, Zeng CH. Fabrication of Yb3+/Er3+co-doped yttrium-based coordination polymer hierarchical micro/nanostructures: upconversion luminescence properties and thermal conversion to the corresponding oxides. CrystEngComm 2016. [DOI: 10.1039/c6ce01349j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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63
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Maxwell T, Banu T, Price E, Tharkur J, Campos MGN, Gesquiere A, Santra S. Non-Cytotoxic Quantum Dot-Chitosan Nanogel Biosensing Probe for Potential Cancer Targeting Agent. NANOMATERIALS 2015; 5:2359-2379. [PMID: 28347126 PMCID: PMC5304800 DOI: 10.3390/nano5042359] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 12/04/2015] [Accepted: 12/15/2015] [Indexed: 11/16/2022]
Abstract
Quantum dot (Qdot) biosensors have consistently provided valuable information to researchers about cellular activity due to their unique fluorescent properties. Many of the most popularly used Qdots contain cadmium, posing the risk of toxicity that could negate their attractive optical properties. The design of a non-cytotoxic probe usually involves multiple components and a complex synthesis process. In this paper, the design and synthesis of a non-cytotoxic Qdot-chitosan nanogel composite using straight-forward cyanogen bromide (CNBr) coupling is reported. The probe was characterized by spectroscopy (UV-Vis, fluorescence), microscopy (Fluorescence, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Dynamic Light Scattering. This activatable (“OFF”/“ON”) probe contains a core–shell Qdot (CdS:Mn/ZnS) capped with dopamine, which acts as a fluorescence quencher and a model drug. Dopamine capped “OFF” Qdots can undergo ligand exchange with intercellular glutathione, which turns the Qdots “ON” to restore fluorescence. These Qdots were then coated with chitosan (natural biocompatible polymer) functionalized with folic acid (targeting motif) and Fluorescein Isothiocyanate (FITC; fluorescent dye). To demonstrate cancer cell targetability, the interaction of the probe with cells that express different folate receptor levels was analyzed, and the cytotoxicity of the probe was evaluated on these cells and was shown to be nontoxic even at concentrations as high as 100 mg/L.
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Affiliation(s)
- Tyler Maxwell
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL 32816, USA.
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA.
| | - Tahmina Banu
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA.
- Department of Material Science and Engineering, University of Central Florida, 127600 Pegasus Drive, Engineering 1, Suite 207, Orlando, FL 32816, USA.
| | - Edward Price
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL 32816, USA.
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA.
| | - Jeremy Tharkur
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA.
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, 6900 Lake Nona Boulevard, Orlando, FL 32827, USA.
| | - Maria Gabriela Nogueira Campos
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA.
- Institute of Science and Technology, Federal University of Alfenas, Rodovia José Aurélio Vilela, 11999, Poços de Caldas, MG 37715-400, Brazil.
| | - Andre Gesquiere
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL 32816, USA.
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA.
- Department of Material Science and Engineering, University of Central Florida, 127600 Pegasus Drive, Engineering 1, Suite 207, Orlando, FL 32816, USA.
- College of Optics and Photonics, University of Central Florida, P.O. Box 162700, Orlando, FL 32816, USA.
| | - Swadeshmukul Santra
- Department of Chemistry, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL 32816, USA.
- NanoScience Technology Center, University of Central Florida, 12424 Research Parkway, Suite 400, Orlando, FL 32826, USA.
- Department of Material Science and Engineering, University of Central Florida, 127600 Pegasus Drive, Engineering 1, Suite 207, Orlando, FL 32816, USA.
- Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, 6900 Lake Nona Boulevard, Orlando, FL 32827, USA.
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Zheng FF, Zhang PH, Xi Y, Chen JJ, Li LL, Zhu JJ. Aptamer/Graphene Quantum Dots Nanocomposite Capped Fluorescent Mesoporous Silica Nanoparticles for Intracellular Drug Delivery and Real-Time Monitoring of Drug Release. Anal Chem 2015; 87:11739-45. [DOI: 10.1021/acs.analchem.5b03131] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Fen-Fen Zheng
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Peng-Hui Zhang
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Yu Xi
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Jing-Jia Chen
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Ling-Ling Li
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210093, People’s Republic of China
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65
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Zhou J, Yang Y, Zhang CY. Toward Biocompatible Semiconductor Quantum Dots: From Biosynthesis and Bioconjugation to Biomedical Application. Chem Rev 2015; 115:11669-717. [DOI: 10.1021/acs.chemrev.5b00049] [Citation(s) in RCA: 472] [Impact Index Per Article: 52.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Juan Zhou
- State
Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
- Single-Molecule
Detection and Imaging Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yong Yang
- Single-Molecule
Detection and Imaging Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Chun-yang Zhang
- College
of Chemistry, Chemical Engineering and Materials Science, Collaborative
Innovation Center of Functionalized Probes for Chemical Imaging in
Universities of Shandong, Key Laboratory of Molecular and Nano Probes,
Ministry of Education, Shandong Provincial Key Laboratory of Clean
Production of Fine Chemicals, Shandong Normal University, Jinan 250014, China
- Single-Molecule
Detection and Imaging Laboratory, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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66
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Lopes CDF, Gomez-Lazaro M, Pêgo AP. Seeing is believing but quantifying is deciding. Nanomedicine (Lond) 2015; 10:2307-10. [DOI: 10.2217/nnm.15.101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Cátia DF Lopes
- INEB – Instituto de Engenharia Biomédica, Universidade do Porto, Rua do Campo Alegre 823, 4150–180 Porto, Portugal
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- FMUP – Faculdade de Medicina da Universidade do Porto, Porto, Portugal
| | - Maria Gomez-Lazaro
- INEB – Instituto de Engenharia Biomédica, Universidade do Porto, Rua do Campo Alegre 823, 4150–180 Porto, Portugal
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- b.IMAGE – Bioimaging Centre for Biomaterials and Regenerative Therapies, INEB, Universidade do Porto, Porto, Portugal
| | - Ana Paula Pêgo
- INEB – Instituto de Engenharia Biomédica, Universidade do Porto, Rua do Campo Alegre 823, 4150–180 Porto, Portugal
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Portugal
- FEUP – Faculdade de Engenharia da Universidade do Porto, Porto, Portugal
- ICBAS – Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
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67
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Román-Pizarro V, Gulzar U, Fernández-Romero JM, Gómez-Hens A. A general thiol assay based on the suppression of fluorescence resonance energy transfer in magnetic-resin core-shell nanospheres coated with gold nanoparticles. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1579-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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68
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Chou KF, Dennis AM. Förster Resonance Energy Transfer between Quantum Dot Donors and Quantum Dot Acceptors. SENSORS 2015; 15:13288-325. [PMID: 26057041 PMCID: PMC4507609 DOI: 10.3390/s150613288] [Citation(s) in RCA: 182] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 05/29/2015] [Accepted: 06/01/2015] [Indexed: 01/27/2023]
Abstract
Förster (or fluorescence) resonance energy transfer amongst semiconductor quantum dots (QDs) is reviewed, with particular interest in biosensing applications. The unique optical properties of QDs provide certain advantages and also specific challenges with regards to sensor design, compared to other FRET systems. The brightness and photostability of QDs make them attractive for highly sensitive sensing and long-term, repetitive imaging applications, respectively, but the overlapping donor and acceptor excitation signals that arise when QDs serve as both the donor and acceptor lead to high background signals from direct excitation of the acceptor. The fundamentals of FRET within a nominally homogeneous QD population as well as energy transfer between two distinct colors of QDs are discussed. Examples of successful sensors are highlighted, as is cascading FRET, which can be used for solar harvesting.
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Affiliation(s)
- Kenny F Chou
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA.
| | - Allison M Dennis
- Department of Biomedical Engineering and Division of Materials Science and Engineering, Boston University, Boston, MA 02215, USA.
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69
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Lim EK, Keem JO, Yun HS, Jung J, Chung BH. Smart nanoprobes for the detection of alkaline phosphatase activity during osteoblast differentiation. Chem Commun (Camb) 2015; 51:3270-2. [DOI: 10.1039/c4cc09620g] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold nanoparticle-conjugated fluorescent hydroxyapatite (AuFHAp) was developed as a smart nanoprobe for measuring alkaline phosphatase (ALP) activity.
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Affiliation(s)
- Eun-Kyung Lim
- BioNanotechnology Research Center
- Korea Research Institute of Bioscience and Biotechnology (KRIBB)
- Daejeon
- Republic of Korea
- BioNano Health Guard Research Center
| | - Joo Oak Keem
- BioNano Health Guard Research Center
- Korea Research Institute of Bioscience and Biotechnology (KRIBB)
- Daejeon
- Republic of Korea
| | - Hui-suk Yun
- Powder & Ceramics Division
- Korea Institute of Materials Science (KIMS)
- Changwon 642-831
- Republic of Korea
| | - Jinyoung Jung
- BioNanotechnology Research Center
- Korea Research Institute of Bioscience and Biotechnology (KRIBB)
- Daejeon
- Republic of Korea
- BioNano Health Guard Research Center
| | - Bong Hyun Chung
- BioNanotechnology Research Center
- Korea Research Institute of Bioscience and Biotechnology (KRIBB)
- Daejeon
- Republic of Korea
- BioNano Health Guard Research Center
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70
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Krishnan A, Sreeremya TS, Mohamed AP, Hareesh US, Ghosh S. Concentration quenching in cerium oxide dispersions via a Förster resonance energy transfer mechanism facilitates the identification of fatty acids. RSC Adv 2015. [DOI: 10.1039/c4ra17326k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The distance dependence of FRET has been utilized, as a simple and novel analytical tool, for explaining the fluorescence quenching of cerium dioxide dispersions and in the prediction of the structure of fatty acids.
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Affiliation(s)
- Asha Krishnan
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
| | - Thadathil S. Sreeremya
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
| | - A. Peer Mohamed
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
| | - Unnikrishnan Saraswathy Hareesh
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
| | - Swapankumar Ghosh
- Material Science and Technology Division
- National Institute for Interdisciplinary Science & Technology (NIIST)
- Council of Scientific & Industrial Research (CSIR)
- Trivandrum-695019
- India
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71
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Guo Z, Zhang Z, Zhang W, Zhou L, Li H, Wang H, Andreazza-Vignolle C, Andreazza P, Zhao D, Wu Y, Wang Q, Zhang T, Jiang K. Color-switchable, emission-enhanced fluorescence realized by engineering C-dot@C-dot nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2014; 6:20700-20708. [PMID: 25408428 DOI: 10.1021/am5071078] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This paper reports the preparation and properties of color-switchable fluorescent carbon nanodots (C-dots). C-dots that emit dark turquoise and green-yellow fluorescence under 365 nm UV illumination were obtained from the hydrothermal decomposition of citric acid. Dark green fluorescent C-dots were obtained by conjugating prepared C-dots to form C-dot@C-dot nanoparticles. After successful conjugation of the C-dots, the fluorescence emission undergoes a blue-shift of nearly 20 nm (∼0.15 eV) under UV excitation at 370 nm. The C-dots emit goldenrod, green-yellow, and gold light under excitation at 455 nm, which shows that the prepared C-dots are color-switchable. Furthermore, conjugation of the C-dots results in enhanced, red-shifted absorption of the π-π* transition of the aromatic sp(2) domains due to the conjugated π-electron system. N incorporation in the carbon structure leads to a degree of dipoles for all the aromatic sp(2) bonds. The enhanced absorption in a wide range from 226 to 601 nm indicates extended conjugation in the C-dot@C-dot structure. The time-resolved average lifetimes for the three different types of C-dots prepared in this study are 7.10, 7.65, and 4.07 ns. The radiative rate (reduced decay lifetime) increases when the C-dots are conjugated in the C-dot@C-dot nanoparticles, leading to the enhanced fluorescence emission. The fluorescence emission of the C-dot@C-dot nanoparticles can be used in applications such as flow cytometry and cell imaging.
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Affiliation(s)
- Zhen Guo
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences , No. 88, Keling Road, Suzhou New District 215163, People's Republic of China
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72
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Cheng Z, Dai Y, Kang X, Li C, Huang S, Lian H, Hou Z, Ma P, Lin J. Gelatin-encapsulated iron oxide nanoparticles for platinum (IV) prodrug delivery, enzyme-stimulated release and MRI. Biomaterials 2014; 35:6359-68. [PMID: 24816364 DOI: 10.1016/j.biomaterials.2014.04.029] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 04/10/2014] [Indexed: 01/01/2023]
Abstract
A facile method for transferring hydrophobic iron oxide nanoparticles (IONPs) from chloroform to aqueous solution via encapsulation of FITC-modified gelatin based on the hydrophobic-hydrophobic interaction is described in this report. Due to the existence of large amount of active groups such as amine groups in gelatin, the fluorescent labeling molecules of fluorescein isothiocyanate (FITC) and platinum (IV) prodrug functionalized with carboxylic groups can be conveniently conjugated on the IONPs. The nanoparticles carrying Pt(IV) prodrug exhibit good anticancer activities when the Pt(IV) complexes are reduced to Pt(II) in the intracellular environment, while the pure Pt(IV) prodrug only presents lower cytotoxicity on cancer cells. Meanwhile, fluorescence of FITC on the surface of nanoparticles was completely quenched due to the possible Förster Resonance Energy Transfer (FRET) mechanism and showed a fluorescence recovery after gelatin release and detachment from IONPs. Therefore FITC as a fluorescence probe can be used for identification, tracking and monitoring the drug release. In addition, adding pancreatic enzyme can effectively promote the gelatin release from IONPs owing to the degradation of gelatin. Noticeable darkening in magnetic resonance image (MRI) was observed at the tumor site after in situ injection of nanoparticles, indicating the IONPs-enhanced T2-weighted imaging. Our results suggest that the gelatin encapsulated Fe3O4 nanoparticles have potential applications in multi-functional drug delivery system for disease therapy, MR imaging and fluorescence sensor.
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Affiliation(s)
- Ziyong Cheng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Yunlu Dai
- University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiaojiao Kang
- University of the Chinese Academy of Sciences, Beijing 100049, PR China
| | - Chunxia Li
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Shanshan Huang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Hongzhou Lian
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Zhiyao Hou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Pingan Ma
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
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73
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Liang S, Liu Y, Xiang J, Qin M, Yu H, Yan G. Fabrication of a new fluorescent polymeric nanoparticle containing naphthalimide and investigation on its interaction with bovine serum albumin. Colloids Surf B Biointerfaces 2014; 116:206-10. [DOI: 10.1016/j.colsurfb.2014.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 12/05/2013] [Accepted: 01/05/2014] [Indexed: 11/29/2022]
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74
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Piehler J. Spectroscopic techniques for monitoring protein interactions in living cells. Curr Opin Struct Biol 2014; 24:54-62. [DOI: 10.1016/j.sbi.2013.11.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 11/15/2013] [Accepted: 11/22/2013] [Indexed: 12/21/2022]
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75
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Al-Ogaidi I, Gou H, Aguilar ZP, Guo S, Melconian AK, Al-kazaz AKA, Meng F, Wu N. Detection of the ovarian cancer biomarker CA-125 using chemiluminescence resonance energy transfer to graphene quantum dots. Chem Commun (Camb) 2014; 50:1344-6. [PMID: 24345782 DOI: 10.1039/c3cc47701k] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A cancer biomarker immuno-sensor has been developed by utilizing the chemiluminescence resonance energy transfer to graphene quantum dots.
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Affiliation(s)
- Israa Al-Ogaidi
- Department of Biotechnology
- College of Science
- University of Baghdad
- Baghdad, Iraq
- Department of Mechanical and Aerospace Engineering
| | - Honglei Gou
- Department of Mechanical and Aerospace Engineering
- West Virginia University
- Morgantown, USA
| | | | - Shouwu Guo
- Key Laboratory for Thin Film and Microfabrication of the Ministry of Education
- Research Institute of Micro/Nano Science and Technology
- Shanghai Jiao Tong University
- Shanghai 200240, China
| | - Alice K. Melconian
- Department of Biotechnology
- College of Science
- University of Baghdad
- Baghdad, Iraq
| | | | - Fanke Meng
- Department of Mechanical and Aerospace Engineering
- West Virginia University
- Morgantown, USA
| | - Nianqiang Wu
- Department of Mechanical and Aerospace Engineering
- West Virginia University
- Morgantown, USA
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76
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Yu S, He C, Lv Q, Sun H, Chen X. pH and reduction dual responsive cross-linked polyurethane micelles as an intracellular drug delivery system. RSC Adv 2014. [DOI: 10.1039/c4ra14221g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
pH- and reduction-responsive disulfide-crosslinked polyurethane micelles (CL-PUMs) were developed. The CL-PUMs remained stable in normal PBS while selectively swelled or decomposed in response to weakly acidic environment or reducing agent.
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Affiliation(s)
- Shuangjiang Yu
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, P. R. China
| | - Chaoliang He
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, P. R. China
| | - Qiang Lv
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, P. R. China
| | - Hai Sun
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, P. R. China
| | - Xuesi Chen
- Key Laboratory of Polymer Ecomaterials
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022, P. R. China
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77
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Viger ML, Sheng W, McFearin CL, Berezin MY, Almutairi A. Application of time-resolved fluorescence for direct and continuous probing of release from polymeric delivery vehicles. J Control Release 2013; 171:308-14. [PMID: 23792808 DOI: 10.1016/j.jconrel.2013.06.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 06/03/2013] [Accepted: 06/10/2013] [Indexed: 12/30/2022]
Abstract
Though accurately evaluating the kinetics of release is critical for validating newly designed therapeutic carriers for in vivo applications, few methods yet exist for release measurement in real time and without the need for any sample preparation. Many of the current approaches (e.g. chromatographic methods, absorption spectroscopy, or NMR spectroscopy) rely on isolation of the released material from the loaded vehicles, which require additional sample purification and can lead to loss of accuracy when probing fast kinetics of release. In this study we describe the use of time-resolved fluorescence for in situ monitoring of small molecule release kinetics from biodegradable polymeric drug delivery systems. This method relies on the observation that fluorescent reporters being released from polymeric drug delivery systems possess distinct excited-state lifetime components, reflecting their different environments in the particle suspensions, i.e., confined in the polymer matrices or free in the aqueous environment. These distinct lifetimes enable real-time quantitative mapping of the relative concentrations of dye in each population to obtain precise and accurate temporal information on the release profile of particular carrier/payload combinations. We found that fluorescence lifetime better distinguishes subtle differences in release profiles (e.g. differences associated with dye loading) than conventional steady-state fluorescence measurements, which represent the averaged dye behavior over the entire scan. Given the method's applicability to both hydrophobic and hydrophilic cargo, it could be employed to model the release of any drug-carrier combination.
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Affiliation(s)
- Mathieu L Viger
- School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego, La Jolla, 92093, USA
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