51
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Zhu K, Baggi G, Vukotic VN, Loeb SJ. Reversible mechanical protection: building a 3D "suit" around a T-shaped benzimidazole axle. Chem Sci 2017; 8:3898-3904. [PMID: 28626559 PMCID: PMC5465563 DOI: 10.1039/c7sc00790f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 03/14/2017] [Indexed: 12/13/2022] Open
Abstract
The T-shaped benzimidazolium/crown ether recognition motif was used to prepare suit[1]anes. These novel mechanically interlocked molecules (MIMs) were fully characterized by 1H and 13C NMR spectroscopy, single-crystal X-ray diffraction, UV-vis absorption and fluorescence spectroscopy. By conversion to a suit[1]ane, a simple benzimidazole was shown to be protected from deprotonation by strong base. Moreover, it was demonstrated that this unique three-dimensional encapsulation can be made reversible, thus introducing the concept of "reversible mechanical protection"; a protecting methodology that may have potential applications in synthetic organic chemistry and the design of molecular machinery.
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Affiliation(s)
- Kelong Zhu
- School of Chemistry , Sun Yat-Sen University , Guangzhou , 510275 , P. R. China .
| | - Giorgio Baggi
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , Ontario N9B 3P4 , Canada .
| | - V Nicholas Vukotic
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , Ontario N9B 3P4 , Canada .
| | - Stephen J Loeb
- Department of Chemistry and Biochemistry , University of Windsor , Windsor , Ontario N9B 3P4 , Canada .
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52
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Liu Y, Yang Y, Sun M, Cui M, Fu Y, Lin Y, Li Z, Nie L. Highly specific noninvasive photoacoustic and positron emission tomography of brain plaque with functionalized croconium dye labeled by a radiotracer. Chem Sci 2017; 8:2710-2716. [PMID: 28451353 PMCID: PMC5399633 DOI: 10.1039/c6sc04798j] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/08/2017] [Indexed: 11/21/2022] Open
Abstract
Highly-efficient targeting probes are desirable for disease diagnosis and functional imaging. However, most of the current near-infrared (NIR) probes suffer from low signal conversion, insufficient photostability, poor probe specificity, and limited functions. Herein, an NIR ultrahigh absorbing croconium dye for amyloid (CDA) was designed and synthesized to specifically bind to cerebrovascular amyloid without antibody linkage. This unique CDA is able to strongly bind the hydrophobic channels of amyloid beta (Aβ) fiber with a very strong binding energy of -9.3 kcal mol-1. Our experimental results demonstrate that the amphipathic dye with an intense absorption peak at 800 nm generated a significant local temperature surge under low-power laser irradiation. Compared with representative prominent indocyanine green, Prussian blue, and gold nanorods, this probe can produce the strongest photoacoustic signal based on the same mass concentration. Labeled with radioactive 18F, this multifunctional probe allowed for the ultrasensitive photoacoustic tomography (PAT)/positron emission tomography (PET)/fluorescence imaging of Aβ plaques in the brain cortex. Featured with high spatial resolution and optical specificity, PAT was intrinsically suitable for imaging pathological sites on cortical vessels, whereas PET revealed whole-body anatomy with quantitative biodistribution information. Our study shows that a CDA-based functionalized dye aided with PAT and PET is capable of plaque diagnosis and localization.
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Affiliation(s)
- Yajing Liu
- State Key Laboratory of Molecular Vaccinology , Molecular Diagnosis & Center for Molecular Imaging and Translational Medicine , School of Public Health , Xiamen University , Xiamen 361102 , People's Republic of China . ;
| | - Yanping Yang
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Mingjian Sun
- Department of Control Science and Engineering , Harbin Institute of Technology , 92 West Dazhi Street, Nan Gang District , Harbin 150001 , China
| | - Mengchao Cui
- Key Laboratory of Radiopharmaceuticals , Ministry of Education , College of Chemistry , Beijing Normal University , Beijing 100875 , China
| | - Ying Fu
- Department of Control Science and Engineering , Harbin Institute of Technology , 92 West Dazhi Street, Nan Gang District , Harbin 150001 , China
| | - Yu Lin
- State Key Laboratory of Molecular Vaccinology , Molecular Diagnosis & Center for Molecular Imaging and Translational Medicine , School of Public Health , Xiamen University , Xiamen 361102 , People's Republic of China . ;
| | - Zijing Li
- State Key Laboratory of Molecular Vaccinology , Molecular Diagnosis & Center for Molecular Imaging and Translational Medicine , School of Public Health , Xiamen University , Xiamen 361102 , People's Republic of China . ;
| | - Liming Nie
- State Key Laboratory of Molecular Vaccinology , Molecular Diagnosis & Center for Molecular Imaging and Translational Medicine , School of Public Health , Xiamen University , Xiamen 361102 , People's Republic of China . ;
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53
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Harmatys KM, Battles PM, Peck EM, Spence GT, Roland FM, Smith BD. Selective photothermal inactivation of cells labeled with near-infrared croconaine dye. Chem Commun (Camb) 2017; 53:9906-9909. [DOI: 10.1039/c7cc05196d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Laser irradiation of a mixed population of two cell lines produced cell death only in the cells that were labeled with croconaine dye.
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Affiliation(s)
- Kara M. Harmatys
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Indiana
- USA
| | - Paul M. Battles
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Indiana
- USA
| | - Evan M. Peck
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Indiana
- USA
| | - Graeme T. Spence
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Indiana
- USA
| | - Felicia M. Roland
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Indiana
- USA
| | - Bradley D. Smith
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Indiana
- USA
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54
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Zhang P, Wang J, Huang H, Qiu K, Huang J, Ji L, Chao H. Enhancing the photothermal stability and photothermal efficacy of AuNRs and AuNTs by grafting with Ru(ii) complexes. J Mater Chem B 2017; 5:671-678. [DOI: 10.1039/c6tb01991a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In this paper, we found that the ruthenium complex-functionalized AuNRs (AuNRs@Ru) and AuNTs (AuNTs@Ru) exhibited better photothermal stability and higher photothermal efficiency than AuNRs and AuNTs.In vivotumor model studies showed that AuNRs@Ru and AuNRs@Ru were effective for the photothermal destruction of tumors.
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Affiliation(s)
- Pingyu Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Jinquan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Huaiyi Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Kangqiang Qiu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Juanjuan Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
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55
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Guha S, Shaw GK, Mitcham TM, Bouchard RR, Smith BD. Croconaine rotaxane for acid activated photothermal heating and ratiometric photoacoustic imaging of acidic pH. Chem Commun (Camb) 2016; 52:120-3. [PMID: 26502996 DOI: 10.1039/c5cc08317f] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Absorption of 808 nm laser light by liposomes containing a pH sensitive, near-infrared croconaine rotaxane dye increases dramatically in weak acid. A stealth liposome composition permits acid activated, photothermal heating and also acts as an effective nanoparticle probe for ratiometric photoacoustic imaging of acidic pH in deep sample locations, including a living mouse.
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Affiliation(s)
- Samit Guha
- Department of Chemistry and Biochemistry, 236 Nieuwland Science Hall, University of Notre Dame, IN 46556, USA.
| | - Gillian Karen Shaw
- Department of Chemistry and Biochemistry, 236 Nieuwland Science Hall, University of Notre Dame, IN 46556, USA.
| | - Trevor M Mitcham
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Richard R Bouchard
- Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Bradley D Smith
- Department of Chemistry and Biochemistry, 236 Nieuwland Science Hall, University of Notre Dame, IN 46556, USA.
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56
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Albumin-NIR dye self-assembled nanoparticles for photoacoustic pH imaging and pH-responsive photothermal therapy effective for large tumors. Biomaterials 2016; 98:23-30. [DOI: 10.1016/j.biomaterials.2016.04.041] [Citation(s) in RCA: 153] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 04/27/2016] [Accepted: 04/30/2016] [Indexed: 01/29/2023]
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57
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Guo LX, Liu MH, Sayed SM, Lin BP, Keller P, Zhang XQ, Sun Y, Yang H. A calamitic mesogenic near-infrared absorbing croconaine dye/liquid crystalline elastomer composite. Chem Sci 2016; 7:4400-4406. [PMID: 30155087 PMCID: PMC6014091 DOI: 10.1039/c6sc00758a] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 03/24/2016] [Indexed: 01/27/2023] Open
Abstract
In this work, we report the first example of a calamitic mesogenic near-infrared (NIR) absorbing organic dye, made by functionalizing a thiophene-croconaine chromophore rigid core with two symmetric long flexible alkyl chains. The liquid crystal (LC) NIR dye YHD796 exhibits a sharp and intense NIR absorption band with a maximum absorption peak at 796 nm. Taking advantage of the improved solubility of YHD796 dispersed in mesogenic molecules, a homogeneously-aligned mono-domain liquid crystalline elastomer (LCE)/YHD796 composite film is successfully prepared by applying the classical LC-cell-alignment method and in situ photo-polymerization of photocurable LC monomer mixtures. This LCE/YHD796 composite film performs a fully reversible contraction/expansion response towards NIR light stimulus due to the photo-thermal heating effect induced by the YHD796 dye well-dispersed in the LCE matrix.
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Affiliation(s)
- Ling-Xiang Guo
- School of Chemistry and Chemical Engineering , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , Jiangsu Optoelectronic Functional Materials and Engineering Laboratory , Southeast University , Nanjing , 211189 , China . ; Tel: +86-25-52090620
| | - Mei-Hua Liu
- School of Chemistry and Chemical Engineering , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , Jiangsu Optoelectronic Functional Materials and Engineering Laboratory , Southeast University , Nanjing , 211189 , China . ; Tel: +86-25-52090620
| | - Sayed Mir Sayed
- School of Chemistry and Chemical Engineering , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , Jiangsu Optoelectronic Functional Materials and Engineering Laboratory , Southeast University , Nanjing , 211189 , China . ; Tel: +86-25-52090620
| | - Bao-Ping Lin
- School of Chemistry and Chemical Engineering , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , Jiangsu Optoelectronic Functional Materials and Engineering Laboratory , Southeast University , Nanjing , 211189 , China . ; Tel: +86-25-52090620
| | - Patrick Keller
- Institut Curie , PSL Research University , CNRS , UMR 168 , F-75005 Paris , France
- Sorbonne Universités , UPMC Univ Paris 06 , CNRS , UMR 168 , F-75005 Paris , France
- Soft Materials Research Center and Department of Chemistry and Biochemistry , University of Colorado , Boulder , CO 80309 , USA
| | - Xue-Qin Zhang
- School of Chemistry and Chemical Engineering , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , Jiangsu Optoelectronic Functional Materials and Engineering Laboratory , Southeast University , Nanjing , 211189 , China . ; Tel: +86-25-52090620
| | - Ying Sun
- School of Chemistry and Chemical Engineering , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , Jiangsu Optoelectronic Functional Materials and Engineering Laboratory , Southeast University , Nanjing , 211189 , China . ; Tel: +86-25-52090620
| | - Hong Yang
- School of Chemistry and Chemical Engineering , Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research , Jiangsu Optoelectronic Functional Materials and Engineering Laboratory , Southeast University , Nanjing , 211189 , China . ; Tel: +86-25-52090620
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58
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Liu W, Peck EM, Smith BD. High Affinity Macrocycle Threading by a Near-Infrared Croconaine Dye with Flanking Polymer Chains. J Phys Chem B 2016; 120:995-1001. [PMID: 26807599 DOI: 10.1021/acs.jpcb.5b11961] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Croconaine dyes have narrow and intense absorption bands at ∼800 nm, very weak fluorescence, and high photostabilities, which combine to make them very attractive chromophores for absorption-based imaging or laser heating technologies. The physical supramolecular properties of croconaine dyes have rarely been investigated, especially in water. This study focuses on a molecular threading process that encapsulates a croconaine dye inside a tetralactam macrocycle in organic or aqueous solvent. Macrocycle association and rate constant data are reported for a series of croconaine structures with different substituents attached to the ends of the dye. The association constants were highest in water (Ka ∼ 10(9) M(-1)), and the threading rate constants (kon) increased in the solvent order H2O > MeOH > CHCl3. Systematic variation of croconaine substituents located just outside the croconaine/macrocycle complexation interface hardly changed Ka but had a strong influence on kon. A croconaine dye with N-propyl groups at each end of the structure exhibited a desirable mixture of macrocycle threading properties; that is, there was rapid and quantitative croconaine/macrocycle complexation at relatively high concentrations in water, and no dissociation of the preassembled complex when it was diluted into a solution of fetal bovine serum, even after laser-induced photothermal heating of the solution. The combination of favorable near-infrared absorption properties and tunable mechanical stability makes threaded croconaine/macrocycle complexes very attractive as molecular probes or as supramolecular composites for various applications in absorption-based imaging or photothermal therapy.
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Affiliation(s)
- Wenqi Liu
- Department of Chemistry and Biochemistry, University of Notre Dame , 236 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Evan M Peck
- Department of Chemistry and Biochemistry, University of Notre Dame , 236 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Bradley D Smith
- Department of Chemistry and Biochemistry, University of Notre Dame , 236 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
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59
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Song Q, Jiao Y, Wang Z, Zhang X. Tuning the Energy Gap by Supramolecular Approaches: Towards Near-Infrared Organic Assemblies and Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:24-31. [PMID: 26741821 DOI: 10.1002/smll.201501661] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 07/21/2015] [Indexed: 06/05/2023]
Abstract
Near-infrared (NIR) organic materials are of great importance for both fundamental research and practical applications. While much effort has been taken to covalently design and synthesize NIR organic materials with a low energy gap, there are supramolecular approaches for tuning the energy gap to noncovalently fabricate NIR organic assemblies and materials. In this concept article, we summarize and discuss several supramolecular approaches, including the fabrication of charge transfer supramolecular complexes, the fabrication of supramolecular J-aggregates, and the fabrication of supramolecularly stabilized organic radicals. The nature of noncovalent interactions in supramolecular approaches can provide NIR organic assemblies and materials with unique properties such as reversibility, stimuli-responsiveness, recyclability, and adaptive abilities.
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Affiliation(s)
- Qiao Song
- The Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Yang Jiao
- The Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhiqiang Wang
- The Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Xi Zhang
- The Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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60
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Zhao P, Zheng M, Luo Z, Gong P, Gao G, Sheng Z, Zheng C, Ma Y, Cai L. NIR-driven Smart Theranostic Nanomedicine for On-demand Drug Release and Synergistic Antitumour Therapy. Sci Rep 2015; 5:14258. [PMID: 26400780 PMCID: PMC4585834 DOI: 10.1038/srep14258] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 08/21/2015] [Indexed: 12/28/2022] Open
Abstract
Smart nanoparticles (NPs) that respond to external and internal stimulations have been developing to achieve optimal drug release in tumour. However, applying these smart NPs to attain high antitumour performance is hampered by limited drug carriers and inefficient spatiotemporal control. Here we report a noninvasive NIR-driven, temperature-sensitive DI-TSL (DOX/ICG-loaded temperature sensitive liposomes) co-encapsulating doxorubicin (DOX) and indocyanine green (ICG). This theranostic system applies thermo-responsive lipid to controllably release drug, utilizes the fluorescence (FL) of DOX/ICG to real-time trace the distribution of NPs, and employs DOX/ICG to treat cancer by chemo/photothermal therapy. DI-TSL exhibits uniform size distribution, excellent FL/size stability, enhanced response to NIR-laser, and 3 times increased drug release through laser irradiation. After endocytosis by MCF-7 breast adenocarcinoma cells, DI-TSL in cellular endosomes can cause hyperthermia through laser irradiation, then endosomes are disrupted and DI-TSL ‘opens’ to release DOX simultaneously for increased cytotoxicity. Furthermore, DI-TSL shows laser-controlled release of DOX in tumour, enhanced ICG and DOX retention by 7 times and 4 times compared with free drugs. Thermo-sensitive DI-TSL manifests high efficiency to promote cell apoptosis, and completely eradicate tumour without side-effect. DI-TSL may provide a smart strategy to release drugs on demand for combinatorial cancer therapy.
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Affiliation(s)
- Pengfei Zhao
- Guangdong Key Laboratory of Nanomedicine, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Mingbin Zheng
- Guangdong Key Laboratory of Nanomedicine, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.,Department of Chemistry, Guangdong Medical University, Dongguan, 523808, P. R. China
| | - Zhenyu Luo
- Guangdong Key Laboratory of Nanomedicine, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Ping Gong
- Guangdong Key Laboratory of Nanomedicine, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Guanhui Gao
- Guangdong Key Laboratory of Nanomedicine, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Zonghai Sheng
- Guangdong Key Laboratory of Nanomedicine, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Cuifang Zheng
- Guangdong Key Laboratory of Nanomedicine, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Yifan Ma
- Guangdong Key Laboratory of Nanomedicine, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Lintao Cai
- Guangdong Key Laboratory of Nanomedicine, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
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61
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Guha S, Shaw SK, Spence GT, Roland FM, Smith BD. Clean Photothermal Heating and Controlled Release from Near-Infrared Dye Doped Nanoparticles without Oxygen Photosensitization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:7826-34. [PMID: 26149326 PMCID: PMC4634570 DOI: 10.1021/acs.langmuir.5b01878] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The photothermal heating and release properties of biocompatible organic nanoparticles, doped with a near-infrared croconaine (Croc) dye, were compared with analogous nanoparticles doped with the common near-infrared dyes ICG and IR780. Separate formulations of lipid-polymer hybrid nanoparticles and liposomes, each containing Croc dye, absorbed strongly at 808 nm and generated clean laser-induced heating (no production of (1)O2 and no photobleaching of the dye). In contrast, laser-induced heating of nanoparticles containing ICG or IR780 produced reactive (1)O2, leading to bleaching of the dye and also decomposition of coencapsulated payload such as the drug doxorubicin. Croc dye was especially useful as a photothermal agent for laser-controlled release of chemically sensitive payload from nanoparticles. Solution state experiments demonstrated repetitive fractional release of water-soluble fluorescent dye from the interior of thermosensitive liposomes. Additional experiments used a focused laser beam to control leakage from immobilized liposomes with very high spatial and temporal precision. The results indicate that fractional photothermal leakage from nanoparticles doped with Croc dye is a promising method for a range of controlled release applications.
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62
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Jiao Y, Liu K, Wang G, Wang Y, Zhang X. Supramolecular free radicals: near-infrared organic materials with enhanced photothermal conversion. Chem Sci 2015; 6:3975-3980. [PMID: 29218167 PMCID: PMC5707502 DOI: 10.1039/c5sc01167a] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 04/20/2015] [Indexed: 12/22/2022] Open
Abstract
A novel kind of supramolecular free radical with significantly improved free radical yield and enhanced near-infrared (NIR) photothermal conversion has been fabricated. Perylene diimide (PDI) can undergo chemical reduction to generate PDI radical anions. Cucurbit[7]uril (CB[7]), a bulky hydrophilic head, was utilized to encapsulate the two end groups of the PDI derivative via host-guest interactions, thus hindering its aggregation and suppressing the dimerization and quenching of PDI radical anions in aqueous solution. Due to the increased concentration of radical anions and their absorption above 800 nm, the efficiency of NIR photothermal conversion was significantly improved. Compared with free radicals fabricated by covalent chemistry, the supramolecular free radicals established here could provide a facile approach for the promoted formation of aromatic free radicals, thus opening up a new strategy for the design of NIR photothermal materials with enhanced photothermal conversion.
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Affiliation(s)
- Yang Jiao
- The Key Lab of Organic Optoelectronics & Molecular Engineering , Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China .
| | - Kai Liu
- The Key Lab of Organic Optoelectronics & Molecular Engineering , Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China .
| | - Guangtong Wang
- The Key Lab of Organic Optoelectronics & Molecular Engineering , Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China .
| | - Yapei Wang
- Department of Chemistry , Renmin University of China , Beijing , 100872 , P. R. China
| | - Xi Zhang
- The Key Lab of Organic Optoelectronics & Molecular Engineering , Department of Chemistry , Tsinghua University , Beijing 100084 , P. R. China .
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63
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Unexpected high photothemal conversion efficiency of gold nanospheres upon grafting with two-photon luminescent ruthenium(II) complexes: A way towards cancer therapy? Biomaterials 2015; 63:102-14. [PMID: 26093791 DOI: 10.1016/j.biomaterials.2015.06.012] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 06/08/2015] [Accepted: 06/11/2015] [Indexed: 12/17/2022]
Abstract
The design and development of functional hybrid nanomaterials is currently a topic of great interest in biomedicine. Herein we investigated the grafting of Ru(II) polypyridyl complexes onto gold nanospheres (Ru@AuNPs) to improve the particles' near infrared (NIR) absorption, and ultimately allow for application in photothermal cancer therapy. As demonstrated in this article, these ruthenium(II) complexes could indeed significantly enhance gold nanospheres' two-photon luminescence (PTL) intensity and photothermal therapy (PTT) efficiency. The best dual functional nanoparticles of this study were successfully used for real-time luminescent imaging-guided PTT in live cancer cells. Furthermore, in vivo tumor ablation was achieved with excellent treatment efficacy under a diode laser (808 nm) irradiation at the power density of 0.8 W/cm(2) for 5 min. This study demonstrates that the coupling of inert Ru(II) polypyridyl complexes to gold nanospheres allows for the enhancement of two-photon luminescence and for efficient photothermal effect.
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64
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Devadas MS, Devkota T, Guha S, Shaw SK, Smith BD, Hartland GV. Spatial modulation spectroscopy for imaging and quantitative analysis of single dye-doped organic nanoparticles inside cells. NANOSCALE 2015; 7:9779-9785. [PMID: 25964049 PMCID: PMC4465101 DOI: 10.1039/c5nr01614b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Imaging of non-fluorescent nanoparticles in complex biological environments, such as the cell cytosol, is a challenging problem. For metal nanoparticles, Rayleigh scattering methods can be used, but for organic nanoparticles, such as dye-doped polymer beads or lipid nanoparticles, light scattering does not provide good contrast. In this paper, spatial modulation spectroscopy (SMS) is used to image single organic nanoparticles doped with non-fluorescent, near-IR croconaine dye. SMS is a quantitative imaging technique that yields the absolute extinction cross-section of the nanoparticles, which can be used to determine the number of dye molecules per particle. SMS images were recorded for particles within EMT-6 breast cancer cells. The measurements allowed mapping of the nanoparticle location and the amount of dye in a single cell. The results demonstrate how SMS can facilitate efforts to optimize dye-doped nanoparticles for effective photothermal therapy of cancer.
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Affiliation(s)
- Mary Sajini Devadas
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556-5670, USA.
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65
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Santra S, Mukherjee S, Bej S, Saha S, Ghosh P. Amino-ether macrocycle that forms CuII templated threaded heteroleptic complexes: a detailed selectivity, structural and theoretical investigations. Dalton Trans 2015; 44:15198-211. [DOI: 10.1039/c5dt00596e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Self-sorting behavior of a newly synthesized macrocycle with divalent metal ions and aromatic ligands via pseudorotaxane formation has been described.
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Affiliation(s)
- Saikat Santra
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Sandip Mukherjee
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Somnath Bej
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Subrata Saha
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Pradyut Ghosh
- Department of Inorganic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
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Spence GT, Lo SS, Ke C, Destecroix H, Davis AP, Hartland GV, Smith BD. Near-Infrared Croconaine Rotaxanes and Doped Nanoparticles for Enhanced Aqueous Photothermal Heating. Chemistry 2014; 20:12628-35. [DOI: 10.1002/chem.201403315] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 06/23/2014] [Indexed: 12/11/2022]
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Wan H, Zhang Y, Liu Z, Xu G, Huang G, Ji Y, Xiong Z, Zhang Q, Dong J, Zhang W, Zou H. Facile fabrication of a near-infrared responsive nanocarrier for spatiotemporally controlled chemo-photothermal synergistic cancer therapy. NANOSCALE 2014; 6:8743-8753. [PMID: 24954159 DOI: 10.1039/c4nr01044b] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Remote-controlled nanocarriers for drug delivery are of great promise to provide timely, sensitive and spatiotemporally selective treatments for cancer therapy. Due to convenient and precise manipulation, deep penetration through tissues and excellent biocompatibility, near-infrared (NIR) irradiation is a preferred external stimulus for triggering the release of loaded drugs. In this work, for spatiotemporally controlled chemo-photothermal synergistic cancer therapy, a NIR responsive nanocarrier was fabricated using reduced graphene oxide nanosheets (rNGO) decorated with mesoporous silica shell and the subsequent functionalization of the thermoresponsive polymer brushes (pNIPAM-co-pAAm) at the outlet of the silica pore channels. rNGO, which combined with the mesoporous silica shell provide a high loading capacity for anticancer drugs (doxorubicin, DOX), was assigned to sense NIR irradiation for the manipulation of pNIPAM-co-pAAm valve to control the diffusion of loaded DOX. Under NIR irradiation, rNGO would generate heat, which could not only elevate the surrounding temperature over the low critical solution temperature (LCST) of pNIPAM-co-pAAm to open the thermoresponsive polymer valve and promote the diffusion of DOX, but also kill the cancer cells through the hypothermia effect. By manipulating NIR irradiation, the nanocarrier exhibited efficiently controlled release of loaded DOX both in the buffer and in living HeLa cells (the model cancer cells), providing powerful and site-targeted treatments, which can be attributed to synergistic effects of chemo-photothermal therapy. To sum up, this novel nanocarrier is an excellent drug delivery platform in remote-controlled chemo-photothermal synergistic cancer therapy via NIR irradiation.
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Affiliation(s)
- Hao Wan
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian 116023, China.
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