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Elgiddawy N, Elnagar N, Korri-Youssoufi H, Yassar A. π-Conjugated Polymer Nanoparticles from Design, Synthesis to Biomedical Applications: Sensing, Imaging, and Therapy. Microorganisms 2023; 11:2006. [PMID: 37630566 PMCID: PMC10459335 DOI: 10.3390/microorganisms11082006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/23/2023] [Accepted: 07/25/2023] [Indexed: 08/27/2023] Open
Abstract
In the past decade, π-conjugated polymer nanoparticles (CPNs) have been considered as promising nanomaterials for biomedical applications, and are widely used as probe materials for bioimaging and drug delivery. Due to their distinctive photophysical and physicochemical characteristics, good compatibility, and ease of functionalization, CPNs are gaining popularity and being used in more and more cutting-edge biomedical sectors. Common synthetic techniques can be used to synthesize CPNs with adjustable particle size and dispersion. More importantly, the recent development of CPNs for sensing and imaging applications has rendered them as a promising device for use in healthcare. This review provides a synopsis of the preparation and functionalization of CPNs and summarizes the recent advancements of CPNs for biomedical applications. In particular, we discuss their major role in bioimaging, therapeutics, fluorescence, and electrochemical sensing. As a conclusion, we highlight the challenges and future perspectives of biomedical applications of CPNs.
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Affiliation(s)
- Nada Elgiddawy
- CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), Université Paris-Saclay, ECBB, 91400 Orsay, France
- Department of Biotechnology and Life Sciences, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef 62 511, Egypt
| | - Noha Elnagar
- CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), Université Paris-Saclay, ECBB, 91400 Orsay, France
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef 62 511, Egypt
| | - Hafsa Korri-Youssoufi
- CNRS, Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO), Université Paris-Saclay, ECBB, 91400 Orsay, France
| | - Abderrahim Yassar
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, 91128 Palaiseau, France;
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Abdollahi A, Dashti A. Photosensing of Chain Polarity and Visualization of Latent Fingerprints by Amine-Functionalized Polymer Nanoparticles Containing Oxazolidine. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.112038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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3
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Seo YH, Kim S. Aggregation-induced emission nanoparticles with improved optical absorption for boosting fluorescence signal of tumors in vivo. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 280:121534. [PMID: 35752040 DOI: 10.1016/j.saa.2022.121534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/17/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
Nanomaterial development has been extensively investigated for several decades to realize sensitive and accurate imaging of tumors in vivo. The manufacturing of nanoparticles with highly efficient tumor targeting and excellent optical properties is still an important research topic. The structure and composition ratio of materials that decisively contribute to the brightness and size of nanoparticles have a great influence on image sensitivity and tumor targeting efficiency. In this study, we developed aggregation-induced emission (AIE) nanoparticles with a widened light absorption window (nanoPMeOCN/BDP) to enable sensitive in vivo tumor imaging. The signal of nanoparticles is enhanced by integrating a high-density AIE polymer (PMeOCN) and light-absorbing fluorescent dye (BDP) in a nanoscopic space. BDP not only improves the light absorption of particles but also enhances the fluorescence signal of particles by effectively transferring absorbed energy to PMeOCN. The physically blended nanoPMeOCN/BDP show strong light absorption and improved sensitivity for the imaging of biological tissues because of their excellent optical performance compared to nanoPMeOCN of similar nanosizes (∼19 nm in size). In vivo imaging results further confirm that nanoPMeOCN/BDP can provide amplified signals with the successful accumulation of tumor tissue through the enhanced permeability and retention effect. We expect that the design strategy of nanoparticles with improved light absorption will provide a simple and general method for improving the accuracy of disease diagnosis.
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Affiliation(s)
- Young Hun Seo
- Biosensor Group, Korea Institute of Science and Technology Europe, Campus E7.1, 66123 Saarbrücken, Germany.
| | - Sehoon Kim
- Center for Theragnosis, Korea Institute of Science and Technology, 5 Hwarang-ro, 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea.
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4
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Lee S, Park CS, Yoon H. Nanoparticulate Photoluminescent Probes for Bioimaging: Small Molecules and Polymers. Int J Mol Sci 2022; 23:4949. [PMID: 35563340 PMCID: PMC9100005 DOI: 10.3390/ijms23094949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/22/2022] Open
Abstract
Recent interest in research on photoluminescent molecules due to their unique properties has played an important role in advancing the bioimaging field. In particular, small molecules and organic dots as probes have great potential for the achievement of bioimaging because of their desirable properties. In this review, we provide an introduction of probes consisting of fluorescent small molecules and polymers that emit light across the ultraviolet and near-infrared wavelength ranges, along with a brief summary of the most recent techniques for bioimaging. Since photoluminescence probes emitting light in different ranges have different goals and targets, their respective strategies also differ. Diverse and novel strategies using photoluminescence probes against targets have gradually been introduced in the related literature. Among recent papers (published within the last 5 years) on the topic, we here concentrate on the photophysical properties and strategies for the design of molecular probes, with key examples of in vivo photoluminescence research for practical applications. More in-depth studies on these probes will provide key insights into how to control the molecular structure and size/shape of organic probes for expanded bioimaging research and applications.
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Affiliation(s)
- Sanghyuck Lee
- Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea;
| | - Chul Soon Park
- Drug Manufacturing Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Korea;
| | - Hyeonseok Yoon
- Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea;
- School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea
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Zahid M, Anwer Rathore H, Tayyab H, Ahmad Rehan Z, Abdul Rashid I, Lodhi M, Zubair U, Shahid I. Recent developments in textile based polymeric smart sensor for human health monitoring: A review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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6
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Adhikari C. Polymer nanoparticles-preparations, applications and future insights: a concise review. POLYM-PLAST TECH MAT 2021. [DOI: 10.1080/25740881.2021.1939715] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Chandan Adhikari
- School of Basic Science and Humanities, Institute of Engineering & Management, Kolkata, India
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Jasim KA, Waheed IF, Topps M, Gesquiere AJ. Multifunctional system for combined chemodynamic–photodynamic therapy employing the endothelin axis based on conjugated polymer nanoparticles. Polym Chem 2021. [DOI: 10.1039/d1py00964h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Most nanomedicines that attack tumors by Reactive Oxygen Species (ROS) based on lipid peroxidation mechanisms require external activation to work.
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Affiliation(s)
- Khalaf A. Jasim
- Department of Chemistry, College of Science, Tikrit University, Tikrit 34001, Iraq
| | - Ibrahim F. Waheed
- Department of Chemistry, College of Science, Tikrit University, Tikrit 34001, Iraq
| | - Martin Topps
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA
- Department of Chemistry, University of Central Florida, Orlando, FL 32826, USA
| | - Andre J. Gesquiere
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA
- Department of Chemistry, University of Central Florida, Orlando, FL 32826, USA
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL 32826, USA
- The College of Optics and Photonics (CREOL), University of Central Florida, Orlando, FL 32826, USA
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Peters M, Desta D, Seneca S, Reekmans G, Adriaensens P, Noben JP, Hellings N, Junkers T, Ethirajan A. PEGylating poly(p-phenylene vinylene)-based bioimaging nanoprobes. J Colloid Interface Sci 2021; 581:566-575. [PMID: 32818676 DOI: 10.1016/j.jcis.2020.07.145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 11/19/2022]
Abstract
HYPOTHESIS Conjugated polymer nanoparticles (CNPs) have attracted considerable attention within bioimaging due to their excellent optical properties and biocompatibility. However, unspecific adsorption of proteins hampers their effective use as advanced bioimaging probes. Controlled methodologies made possible tailor-made functional poly(p-phenylene vinylene), enabling one-pot synthesis of CNPs containing functional surface groups. Hence, it should be feasible to PEGylate these CNPs to tune the uptake by cell lines representative for the brain without imparting their optical properties. EXPERIMENTS CNPs consisting of the statistical copolymer 2-(5'-methoxycarbonylpentyloxy)-5-methoxy-1,4-phenylenevinylene and poly(2-methoxy-5-(3',7'-dimethoxyoctyloxy)-1,4-phenylenevinylene) were fabricated by miniemulsion solvent evaporation technique. Surface carboxylic acid groups were used to covalently attach amine-terminated polyethylene glycol (PEG) of different molecular weights. We investigated the effect of grafting CNPs with PEG chains on their intrinsic optical properties, protein adsorption behavior and uptake by representative brain cell lines. FINDINGS PEGylation did not affect the optical properties and biocompatibility of our CNPs. Moreover, a significant decrease in protein corona formation and unspecific uptake in central nervous system cell lines, depending on PEG chain length, was observed. This is the first report indicating that PEGylation does not affect the CNPs role as excellent bioimaging tools and can be adapted to tune biological interactions with brain cells.
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Affiliation(s)
- Martijn Peters
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - Derese Desta
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan Building D, 3590 Diepenbeek, Belgium; IMEC Associated Lab IMOMEC, Wetenschapspark 1, 3590 Diepenbeek, Belgium
| | - Senne Seneca
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan Building D, 3590 Diepenbeek, Belgium; IMEC Associated Lab IMOMEC, Wetenschapspark 1, 3590 Diepenbeek, Belgium
| | - Gunter Reekmans
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan Building D, 3590 Diepenbeek, Belgium; IMEC Associated Lab IMOMEC, Wetenschapspark 1, 3590 Diepenbeek, Belgium
| | - Peter Adriaensens
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan Building D, 3590 Diepenbeek, Belgium; IMEC Associated Lab IMOMEC, Wetenschapspark 1, 3590 Diepenbeek, Belgium
| | - Jean-Paul Noben
- Immunology & Infection, Biomedical Research Institute, Hasselt University, Agoralaan Building C, 3590 Diepenbeek, Belgium
| | - Niels Hellings
- Immunology & Infection, Biomedical Research Institute, Hasselt University, Agoralaan Building C, 3590 Diepenbeek, Belgium
| | - Tanja Junkers
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan Building D, 3590 Diepenbeek, Belgium; School of Chemistry, Monash University, 19 Rainforest Walk, Clayton, VIC 3800, Australia
| | - Anitha Ethirajan
- Institute for Materials Research, Hasselt University, Wetenschapspark 1 and Agoralaan Building D, 3590 Diepenbeek, Belgium; IMEC Associated Lab IMOMEC, Wetenschapspark 1, 3590 Diepenbeek, Belgium.
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Enhanced optical imaging properties of lipid nanocapsules as vehicles for fluorescent conjugated polymers. Eur J Pharm Biopharm 2020; 154:297-308. [PMID: 32707286 DOI: 10.1016/j.ejpb.2020.07.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 07/12/2020] [Accepted: 07/19/2020] [Indexed: 01/10/2023]
Abstract
Conjugated polymer nanoparticles (CPNs) have emerged as highly photostable probes for optical and photoacoustic imaging. However, the aggregation of conjugated polymer (CP) molecules upon nanoparticle formation is associated with fluorescence quenching, poor yields and mutable particle sizes. This study investigated whether the CP encapsulation within the liquid midchain triglyceride (MCT) core of lipid nanocapsules (LNCs) may achieve reduced packing of CP chains leading to a stable system with enhanced optical features. The red- and near infrared-emitting CPs, CN-PPV and PCPDTBT, showed precipitation and aggregation-induced quenching with concentrations >~25 µg/mL in MCT alone. Despite this, CP encapsulation within LNCs abolished quenching at concentrations up to 1500 µg/mL. PCPDTBT-LNCs exhibited a quantum yield of 2.8% and a higher signal:background ratio in an optical imaging phantom compared to literature reports of PCPDTBT encapsulated in PEG-PLGA nanoparticles. In contrast, PCPDTBT-LNCs had slightly lower photoacoustic amplitudes than reported PEG-PLGA systems. CP-LNCs were also stable in size (32 ± 0.7 nm) and photoluminescence over 21 days at 4 °C, 25 °C and 37 °C. In summary, encapsulation of CP within the liquid core of lipid nanocapsules enhances the optical properties of fluorescent CP.
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Lin Y, Sun H, Yang H, Lai Y, Hou K, Liu Y. Aqueous Palladium‐Catalyzed Direct Arylation Polymerization of 2‐Bromothiophene Derivatives. Macromol Rapid Commun 2020; 41:e2000021. [DOI: 10.1002/marc.202000021] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/04/2020] [Accepted: 03/05/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Yu‐Jen Lin
- Institute of Polymer Science and EngineeringNational Taiwan University Taipei 10617 Taiwan
| | - Han‐Sheng Sun
- Institute of Polymer Science and EngineeringNational Taiwan University Taipei 10617 Taiwan
| | - Hau‐Ren Yang
- Institute of Polymer Science and EngineeringNational Taiwan University Taipei 10617 Taiwan
| | - Yu‐Ying Lai
- Institute of Polymer Science and EngineeringNational Taiwan University Taipei 10617 Taiwan
| | - Kai‐Yuan Hou
- Institute of Polymer Science and EngineeringNational Taiwan University Taipei 10617 Taiwan
| | - Yi‐Hung Liu
- Instrumentation CenterNational Taiwan University Taipei 10617 Taiwan
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11
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Jasim KA, Gesquiere AJ. Ultrastable and Biofunctionalizable Conjugated Polymer Nanoparticles with Encapsulated Iron for Ferroptosis Assisted Chemodynamic Therapy. Mol Pharm 2019; 16:4852-4866. [PMID: 31613630 DOI: 10.1021/acs.molpharmaceut.9b00737] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report the development of novel tumor-targeted conjugated polymer nanoparticles (CPNPs) carrying iron for chemodynamic therapy (CDT). Tumor cell killing proceeds through ferroptosis, a reactive oxygen species (ROS) mechanism that is not dependent on external activation by, for example, light, as is the case in photodynamic therapy (PDT). The ferroptosis mechanism is also not heavily reliant on oxygen availability and is, therefore, promising for the treatment of hypoxic tumors. In this work, we apply this development to the case study of melanoma, a difficult to treat cancer in advanced stages due to resistance to chemotherapy. The iron-carrying CPNPs reported here are targeted to endothelin-B receptors (EDNRB) through endothelin-3 surface moieties (EDN3-CPNPs). Our results show excellent targeting to tumor cells that overexpress EDNRB, specifically for melanoma and bladder tumor cells. In these cases, efficient cell killing, over 80% at higher doses, was found. Conversely, tumor cells not targeted by the EDN3-CPNPs show little effects of CDT, with tumor cell death under 20% in most cases. The outcomes of our work demonstrate that EDN3-CPNPs enable ferroptosis-assisted CDT and present a new therapeutic avenue for tumor treatment.
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Affiliation(s)
- Khalaf A Jasim
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States.,NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States.,Department of Chemistry, College of Science, Tikrit University, Tikrit 34001, Iraq
| | - Andre J Gesquiere
- Department of Chemistry, University of Central Florida, Orlando, Florida 32816, United States.,NanoScience Technology Center, University of Central Florida, Orlando, Florida 32826, United States.,Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32816, United States.,The College of Optics and Photonics (CREOL), University of Central Florida, Orlando, Florida 32816, United States
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12
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Singh N, Kumar P, Kumar R, Aazam ES, Riaz U. Development of a near infrared novel bioimaging agent via co-oligomerization of Congo red with aniline and o-phenylenediamine: experimental and theoretical studies. RSC Adv 2019; 9:36479-36491. [PMID: 35540595 PMCID: PMC9075138 DOI: 10.1039/c9ra05814a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 10/29/2019] [Indexed: 01/04/2023] Open
Abstract
With a view to study the effect of insertion of a multifunctional dye moiety on the photo physical properties of conducting polymers, the present paper reports for the first time the homopolymerization and co-oligomerization of Congo red (CR) dye with aniline and o-phenylenediamine. The co-oligomerization was established by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (1H-NMR), and ultraviolet-visible (UV-vis) spectroscopy while the morphology was examined using X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The theoretical as well as experimental data of 1H-NMR as well as IR studies confirmed the co-oligomer formation while ultraviolet-visible spectroscopy studies revealed a dynamic change in the optical properties upon variation of co-oligomer composition. X-ray diffraction studies established a crystalline morphology of oligomers. Live cell confocal imaging studies revealed that the co-oligomers could be effectively used in NIR imaging.
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Affiliation(s)
- Neetika Singh
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia New Delhi 110025 India
| | - Prabhat Kumar
- Advanced Instrumentation Research Facility, Jawaharlal Nehru University NewDelhi 110067 India
| | - Raj Kumar
- School of Life Sciences, Jawaharlal Nehru University New Delhi 110067 India
| | - Elham S Aazam
- Chemistry Department, Faculty of Science, King Abdul Aziz University Jeddah 23622 Saudia Arabia
| | - Ufana Riaz
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia New Delhi 110025 India
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Cheruku S, D'Olieslaeger L, Smisdom N, Smits J, Vanderzande D, Maes W, Ameloot M, Ethirajan A. Fluorescent PCDTBT Nanoparticles with Tunable Size for Versatile Bioimaging. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2497. [PMID: 31390806 PMCID: PMC6695891 DOI: 10.3390/ma12152497] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 07/30/2019] [Accepted: 08/06/2019] [Indexed: 01/03/2023]
Abstract
Conjugated polymer nanoparticles exhibit very interesting properties for use as bio-imaging agents. In this paper, we report the synthesis of PCDTBT (poly([9-(1'-octylnonyl)-9H-carbazole-2,7-diyl]-2,5-thiophenediyl-2,1,3-benzothiadiazole-4,7-diyl-2,5-thiophene-diyl)) nanoparticles of varying sizes using the mini-emulsion and emulsion/solvent evaporation approach. The effect of the size of the particles on the optical properties is investigated using UV-Vis absorption and fluorescence emission spectroscopy. It is shown that PCDTBT nanoparticles have a fluorescence emission maximum around 710 nm, within the biological near-infrared "optical window". The photoluminescence quantum yield shows a characteristic trend as a function of size. The particles are not cytotoxic and are taken up successfully by human lung cancer carcinoma A549 cells. Irrespective of the size, all particles show excellent fluorescent brightness for bioimaging. The fidelity of the particles as fluorescent probes to study particle dynamics in situ is shown as a proof of concept by performing raster image correlation spectroscopy. Combined, these results show that PCDTBT is an excellent candidate to serve as a fluorescent probe for near-infrared bio-imaging.
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Affiliation(s)
- Srujan Cheruku
- Nanobiophysics and Soft Matter Interfaces group (NSI), Institute for Materials Research (IMO-IMOMEC), UHasselt-Hasselt University, 3590 Diepenbeek, Belgium
| | - Lien D'Olieslaeger
- Nanobiophysics and Soft Matter Interfaces group (NSI), Institute for Materials Research (IMO-IMOMEC), UHasselt-Hasselt University, 3590 Diepenbeek, Belgium
| | - Nick Smisdom
- Biomedical Research Institute (BIOMED), UHasselt-Hasselt University, 3590 Diepenbeek, Belgium
| | - Joeri Smits
- Nanobiophysics and Soft Matter Interfaces group (NSI), Institute for Materials Research (IMO-IMOMEC), UHasselt-Hasselt University, 3590 Diepenbeek, Belgium
| | - Dirk Vanderzande
- Design & Synthesis of Organic Semiconductors (DSOS), Institute for Materials Research (IMO-IMOMEC), UHasselt-Hasselt University, 3590 Diepenbeek, Belgium
- IMEC, Associated lab IMOMEC, 3590 Diepenbeek, Belgium
| | - Wouter Maes
- Design & Synthesis of Organic Semiconductors (DSOS), Institute for Materials Research (IMO-IMOMEC), UHasselt-Hasselt University, 3590 Diepenbeek, Belgium
- IMEC, Associated lab IMOMEC, 3590 Diepenbeek, Belgium
| | - Marcel Ameloot
- Biomedical Research Institute (BIOMED), UHasselt-Hasselt University, 3590 Diepenbeek, Belgium
| | - Anitha Ethirajan
- Nanobiophysics and Soft Matter Interfaces group (NSI), Institute for Materials Research (IMO-IMOMEC), UHasselt-Hasselt University, 3590 Diepenbeek, Belgium.
- IMEC, Associated lab IMOMEC, 3590 Diepenbeek, Belgium.
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