1
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Xu Y, Chen J, Zhang Y, Zhang P. Recent Progress in Peptide-Based Molecular Probes for Disease Bioimaging. Biomacromolecules 2024; 25:2222-2242. [PMID: 38437161 DOI: 10.1021/acs.biomac.3c01413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Recent strides in molecular pathology have unveiled distinctive alterations at the molecular level throughout the onset and progression of diseases. Enhancing the in vivo visualization of these biomarkers is crucial for advancing disease classification, staging, and treatment strategies. Peptide-based molecular probes (PMPs) have emerged as versatile tools due to their exceptional ability to discern these molecular changes with unparalleled specificity and precision. In this Perspective, we first summarize the methodologies for crafting innovative functional peptides, emphasizing recent advancements in both peptide library technologies and computer-assisted peptide design approaches. Furthermore, we offer an overview of the latest advances in PMPs within the realm of biological imaging, showcasing their varied applications in diagnostic and therapeutic modalities. We also briefly address current challenges and potential future directions in this dynamic field.
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Affiliation(s)
- Ying Xu
- School of Biomedical Engineering and State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai 201210, China
| | - Junfan Chen
- School of Biomedical Engineering and State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai 201210, China
| | - Yuan Zhang
- Department of Pulmonary and Critical Care Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - Pengcheng Zhang
- School of Biomedical Engineering and State Key Laboratory of Advanced Medical Materials and Devices, ShanghaiTech University, Shanghai 201210, China
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2
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Uriel C, Grenier D, Herranz F, Casado N, Bañuelos J, Rebollar E, Garcia-Moreno I, Gomez AM, López JC. De Novo Access to BODIPY C-Glycosides as Linker-Free Nonsymmetrical BODIPY-Carbohydrate Conjugates. J Org Chem 2024; 89:4042-4055. [PMID: 38438277 PMCID: PMC10949249 DOI: 10.1021/acs.joc.3c02907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/19/2024] [Accepted: 02/26/2024] [Indexed: 03/06/2024]
Abstract
Recent years have witnessed an increasing interest in the synthesis and study of BODIPY-glycoconjugates. Most of the described synthetic methods toward these derivatives involve postfunctional modifications of the BODIPY core followed by the covalent attachment of the fluorophore and the carbohydrate through a "connector". Conversely, few de novo synthetic approaches to linker-free carbohydrate-BODIPY hybrids have been described. We have developed a reliable modular, de novo, synthetic strategy to linker-free BODIPY-sugar derivatives using the condensation of pyrrole C-glycosides with a pyrrole-carbaldehyde derivative mediated by POCl3. This methodology allows labeling of carbohydrate biomolecules with fluorescent-enough BODIPYs within the biological window, stable in aqueous media, and able to display singlet oxygen generation.
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Affiliation(s)
- Clara Uriel
- Instituto
de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, Madrid 28006, Spain
| | - Dylan Grenier
- Instituto
de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, Madrid 28006, Spain
| | - Florian Herranz
- Instituto
de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, Madrid 28006, Spain
| | - Natalia Casado
- Departamento
de Química Física, Universidad
del Pais Vasco, UPV-EHU, Apartado 644, Bilbao 48080, Spain
| | - Jorge Bañuelos
- Departamento
de Química Física, Universidad
del Pais Vasco, UPV-EHU, Apartado 644, Bilbao 48080, Spain
| | - Esther Rebollar
- Instituto
de Química y Física Blas Cabrera, CSIC, Serrano 119, Madrid 28006, Spain
| | | | - Ana M. Gomez
- Instituto
de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, Madrid 28006, Spain
| | - J. Cristobal López
- Instituto
de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, Madrid 28006, Spain
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3
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Chen X, Mendes B, Zhuang Y, Conniot J, Mercado Argandona S, Melle F, Sousa DP, Perl D, Chivu A, Patra HK, Shepard W, Conde J, Fairen-Jimenez D. A Fluorinated BODIPY-Based Zirconium Metal-Organic Framework for In Vivo Enhanced Photodynamic Therapy. J Am Chem Soc 2024; 146:1644-1656. [PMID: 38174960 PMCID: PMC10797627 DOI: 10.1021/jacs.3c12416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024]
Abstract
Photodynamic therapy (PDT), an emergent noninvasive cancer treatment, is largely dependent on the presence of efficient photosensitizers (PSs) and a sufficient oxygen supply. However, the therapeutic efficacy of PSs is greatly compromised by poor solubility, aggregation tendency, and oxygen depletion within solid tumors during PDT in hypoxic microenvironments. Despite the potential of PS-based metal-organic frameworks (MOFs), addressing hypoxia remains challenging. Boron dipyrromethene (BODIPY) chromophores, with excellent photostability, have exhibited great potential in PDT and bioimaging. However, their practical application suffers from limited chemical stability under harsh MOF synthesis conditions. Herein, we report the synthesis of the first example of a Zr-based MOF, namely, 69-L2, exclusively constructed from the BODIPY-derived ligands via a single-crystal to single-crystal post-synthetic exchange, where a direct solvothermal method is not applicable. To increase the PDT performance in hypoxia, we modify 69-L2 with fluorinated phosphate-functionalized methoxy poly(ethylene glycol). The resulting 69-L2@F is an oxygen carrier, enabling tumor oxygenation and simultaneously acting as a PS for reactive oxygen species (ROS) generation under LED irradiation. We demonstrate that 69-L2@F has an enhanced PDT effect in triple-negative breast cancer MDA-MB-231 cells under both normoxia and hypoxia. Following positive results, we evaluated the in vivo activity of 69-L2@F with a hydrogel, enabling local therapy in a triple-negative breast cancer mice model and achieving exceptional antitumor efficacy in only 2 days. We envision BODIPY-based Zr-MOFs to provide a solution for hypoxia relief and maximize efficacy during in vivo PDT, offering new insights into the design of promising MOF-based PSs for hypoxic tumors.
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Affiliation(s)
- Xu Chen
- The
Adsorption & Advanced Materials Laboratory (AML),
Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Bárbara
B. Mendes
- ToxOmics,
NOVA Medical School, Faculdade de Ciências Médicas,
NMS|FCM, Universidade Nova de Lisboa, Lisboa 2775-405, Portugal
| | - Yunhui Zhuang
- The
Adsorption & Advanced Materials Laboratory (AML),
Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - João Conniot
- ToxOmics,
NOVA Medical School, Faculdade de Ciências Médicas,
NMS|FCM, Universidade Nova de Lisboa, Lisboa 2775-405, Portugal
| | - Sergio Mercado Argandona
- The
Adsorption & Advanced Materials Laboratory (AML),
Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Francesca Melle
- The
Adsorption & Advanced Materials Laboratory (AML),
Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
| | - Diana P. Sousa
- ToxOmics,
NOVA Medical School, Faculdade de Ciências Médicas,
NMS|FCM, Universidade Nova de Lisboa, Lisboa 2775-405, Portugal
| | - David Perl
- Synchrotron
SOLEIL-UR1, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - Alexandru Chivu
- Department
of Surgical Biotechnology, University College
London, London NW3 2PF, U.K.
| | - Hirak K. Patra
- Department
of Surgical Biotechnology, University College
London, London NW3 2PF, U.K.
| | - William Shepard
- Synchrotron
SOLEIL-UR1, L’Orme des Merisiers, Départementale 128, 91190 Saint-Aubin, France
| | - João Conde
- ToxOmics,
NOVA Medical School, Faculdade de Ciências Médicas,
NMS|FCM, Universidade Nova de Lisboa, Lisboa 2775-405, Portugal
| | - David Fairen-Jimenez
- The
Adsorption & Advanced Materials Laboratory (AML),
Department of Chemical Engineering & Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, U.K.
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4
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Liu L, Li S, Zhang N, Shi Q, Liu K, Liu T, Huang Z, Ding L, Fang Y. Comparative Observation of Distinct Dynamic Stokes Shifts in Diaryl BODIPY Triads with Broadband Two-Photon Absorption. J Phys Chem B 2023; 127:10171-10178. [PMID: 37967951 DOI: 10.1021/acs.jpcb.3c06757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Time-resolved evolution of excited states in the twist-conjugated chromophores is of great fundamental interest for photoluminescent applications. The four diaryl BODIPY triads modified with diverse end-cappers at 2,6-positions were investigated properly, and considerable two-photon absorption capabilities in the first biological spectral window were obtained. Fast relaxations from the initially twisted conformation to the planarized conformation in the excited state were resolved spectrally and kinetically, accompanied by the discernible phenomenon of the fluorescence dynamic Stokes shift (DSS). Along with increasing electron donating capabilities and solvent polarities, the characteristics of structural rearrangement and intramolecular charge transfer have been estimated by enhanced DSS behaviors. Especially, the blue-shifted DSS was rationalized as the sequence conversion between the planarized state and the twisted charge transfer state. A molecular-level picture for relaxation pathways in different polarities was depicted and supported by the theoretical simulations. Significant and fast structural motions in this work contribute to the excited-state dynamics and rational development of versatile BODIPY chromophores.
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Affiliation(s)
- Lu Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, People's Republic of China
| | - Sheng Li
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, People's Republic of China
| | - Nan Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, People's Republic of China
| | - Qiyuan Shi
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, People's Republic of China
| | - Ke Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, People's Republic of China
| | - Taihong Liu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, People's Republic of China
| | - Zhiyan Huang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, People's Republic of China
| | - Liping Ding
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, People's Republic of China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, Shaanxi 710119, People's Republic of China
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5
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Zuo H, Wu Q, Guo X, Kang Z, Gao J, Wei Y, Yu C, Jiao L, Hao E. Tuning of Redox Potentials and LUMO Levels of BODIPYs via Site-Selective Direct Cyanation. Org Lett 2023; 25:8150-8155. [PMID: 37921615 DOI: 10.1021/acs.orglett.3c03330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Through a strong oxidant Pb(OAc)4 promoted oxidative nucleophilic hydrogen substitution, site-selective direct and stepwise cyanation of BODIPYs using tetrabutylammonium cyanide was developed to give α-cyanated BODIPY derivatives. Characterization of optical and electrochemical properties of these dyes provides substantial enhancement of the electron affinity, with a reduction potential and LUMO level as low as -0.04 V and -4.43 eV, respectively. Radical anions of these electron-deficient 3,5-dicyanated BODIPYs were characterized by absorption and EPR spectroscopy.
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Affiliation(s)
- Huiquan Zuo
- Anhui Laboratory of Molecule-Based Materials; The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Qinghua Wu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Xing Guo
- Anhui Laboratory of Molecule-Based Materials; The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Zhengxin Kang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Jiangang Gao
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Ying Wei
- Anhui Laboratory of Molecule-Based Materials; The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Changjiang Yu
- Anhui Laboratory of Molecule-Based Materials; The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Lijuan Jiao
- Anhui Laboratory of Molecule-Based Materials; The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Erhong Hao
- Anhui Laboratory of Molecule-Based Materials; The Key Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
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6
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Santos MG, Araújo J, Carmo C, Santos L, Botelho MF, Laranjo M, Sobral AJFN. Synthesis and In Vitro Biocompatibility Studies of Novel Alkoxy 4,4-Difluoro-4-bora-3a,4a-diaza-s-indacenes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7085. [PMID: 38005015 PMCID: PMC10672151 DOI: 10.3390/ma16227085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 10/30/2023] [Accepted: 11/04/2023] [Indexed: 11/26/2023]
Abstract
BODIPYs are bicyclic aromatic compounds with unique spectroscopic, photophysical, and chemical properties. This study aimed to find BODIPYs with characteristics biocompatible with human cell lines for possible use as imaging agents. Six BODIPY derivatives were synthesised with groups linked to boron, fluorine, phenol, or catechol, resulting in compounds with different physicochemical characteristics. NMR, absorption, and emission spectroscopy and mass spectrometry were subsequently used to characterise them. Afterwards, the biocompatibility of these compounds was evaluated using MTT, SRB, and cellular uptake assays in A549 and H1299 cell lines. Furthermore, a haemolysis assay was performed on human blood cells. To summarise the main results, BODIPYs 1 to 4 showed considerable fluorescence. In contrast, BODIPYs 5 and 6 showed very weak fluorescence, which could be related to the presence of the catechol group and its quenching properties. Regarding biocompatibility, all compounds had metabolic activity and viability above 80% and 70%, respectively. BODIPYs 3 and 6 presented the most consistent data, demonstrating good uptake and, in general, haemolytic activity below 25%. In conclusion, the cytotoxic effects of the compounds were not considerable, and the presence of cyclic alkoxides in BODIPYs 3 and 6 may introduce exciting features that should be highlighted for dual imaging for BODIPY 3 due to its fluorescence or for radioactive labelling in the case of both BODIPYs.
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Affiliation(s)
| | - Juliana Araújo
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; (J.A.); (C.C.)
| | - Chrislaura Carmo
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; (J.A.); (C.C.)
| | - Leonardo Santos
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; (J.A.); (C.C.)
| | - Maria Filomena Botelho
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Area of Environment, Genetics and Oncobiology (CIMAGO), and Institute of Biophysics, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal; (M.F.B.); (M.L.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Centre of Coimbra (CACC), 3000-354 Coimbra, Portugal
| | - Mafalda Laranjo
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Area of Environment, Genetics and Oncobiology (CIMAGO), and Institute of Biophysics, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal; (M.F.B.); (M.L.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3000-548 Coimbra, Portugal
- Clinical Academic Centre of Coimbra (CACC), 3000-354 Coimbra, Portugal
| | - Abílio J. F. N. Sobral
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; (J.A.); (C.C.)
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7
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Rodriguez-Rios M, McHugh BJ, Liang Z, Megia-Fernandez A, Lilienkampf A, Dockrell D, Bradley M. A fluorogenic, peptide-based probe for the detection of Cathepsin D in macrophages. Commun Chem 2023; 6:237. [PMID: 37919467 PMCID: PMC10622513 DOI: 10.1038/s42004-023-01035-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 10/20/2023] [Indexed: 11/04/2023] Open
Abstract
Cathepsin D is a protease that is an effector in the immune response of macrophages, yet to date, only a limited number of probes have been developed for its detection. Herein, we report a water soluble, highly sensitive, pH insensitive fluorescent probe for the detection of Cathepsin D activity that provides a strong OFF/ON signal upon activation and with bright emission at 515 nm. The probe was synthesised using a combination of solid and solution-phase chemistries, with probe optimisation to increase its water solubility and activation kinetics by addition of a long PEG chain (5 kDa) at the C-terminus. A BODIPY fluorophore allowed detection of Cathepsin D across a wide pH range, important as the protease is active both at the low pH found in lysosomes and also in higher pH phagolysosomes, and in the cytosol. The probe was successfully used to detect Cathepsin D activity in macrophages challenged by exposure to bacteria.
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Affiliation(s)
- Maria Rodriguez-Rios
- School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK
| | - Brian J McHugh
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh BioQuarter, Edinburgh, EH16 4TJ, UK
| | - Zhengqi Liang
- School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK
| | - Alicia Megia-Fernandez
- School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK
- Organic Chemistry Department, Faculty of Sciences, University of Granada, Avda. Fuente Nueva S/N, Granada, 18071, Spain
| | - Annamaria Lilienkampf
- School of Chemistry, University of Edinburgh, David Brewster Road, EH9 3FJ, Edinburgh, UK
| | - David Dockrell
- University of Edinburgh Centre for Inflammation Research, Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh BioQuarter, Edinburgh, EH16 4TJ, UK
| | - Mark Bradley
- Precision Healthcare University Research Institute, Queen Mary University of London, Empire House, 67-75 New Road, London, E1 1HH, UK.
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8
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Mahanta CS, Ravichandiran V, Swain SP. Recent Developments in the Design of New Water-Soluble Boron Dipyrromethenes and Their Applications: An Updated Review. ACS APPLIED BIO MATERIALS 2023; 6:2995-3018. [PMID: 37462316 DOI: 10.1021/acsabm.3c00289] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Boron-dipyrromethene (BODIPY) and its derivatives play an important role in the area of organic fluorophore chemistry. Recently, the water-soluble boron-dipyrromethene dyes have increasingly received interest. The structural modification of the BODIPY core by incorporating different neutral and ionic hydrophilic groups makes it water-soluble. The important hydrophilic groups, such as quaternary ammonium, sulfonate, oligoethylene glycol, dicarboxylic acid, and sugar moieties significantly increase the solubility of these dyes in water while preserving their photophysical properties. As a result, these fluorescent dyes are utilized in aqueous systems for applications such as chemosensors, cell imaging, anticancer, biolabeling, biomedicine, metal ion detection, and photodynamic treatment. This review covers the most current developments in the design and synthesis of water-soluble BODIPY derivatives and their wide applications since 2014.
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Affiliation(s)
- Chandra Sekhara Mahanta
- Department of Medicinal Chemistry and Centre for Marine Therapeutics, National Institute of Pharmaceutical Education and Research- Kolkata, 168, Chunilal Bhawan, Maniktala Main Road, Kolkata 700054, India
| | - Velayutham Ravichandiran
- Department of Medicinal Chemistry and Centre for Marine Therapeutics, National Institute of Pharmaceutical Education and Research- Kolkata, 168, Chunilal Bhawan, Maniktala Main Road, Kolkata 700054, India
| | - Sharada Prasanna Swain
- Department of Medicinal Chemistry and Centre for Marine Therapeutics, National Institute of Pharmaceutical Education and Research- Kolkata, 168, Chunilal Bhawan, Maniktala Main Road, Kolkata 700054, India
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9
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Mendive‐Tapia L, Miret‐Casals L, Barth ND, Wang J, de Bray A, Beltramo M, Robert V, Ampe C, Hodson DJ, Madder A, Vendrell M. Acid-Resistant BODIPY Amino Acids for Peptide-Based Fluorescence Imaging of GPR54 Receptors in Pancreatic Islets. Angew Chem Int Ed Engl 2023; 62:e202302688. [PMID: 36917014 PMCID: PMC10947197 DOI: 10.1002/anie.202302688] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/09/2023] [Accepted: 03/14/2023] [Indexed: 03/15/2023]
Abstract
The G protein-coupled kisspeptin receptor (GPR54 or KISS1R) is an important mediator in reproduction, metabolism and cancer biology; however, there are limited fluorescent probes or antibodies for direct imaging of these receptors in cells and intact tissues, which can help to interrogate their multiple biological roles. Herein, we describe the rational design and characterization of a new acid-resistant BODIPY-based amino acid (Trp-BODIPY PLUS), and its implementation for solid-phase synthesis of fluorescent bioactive peptides. Trp-BODIPY PLUS retains the binding capabilities of both short linear and cyclic peptides and displays notable turn-on fluorescence emission upon target binding for wash-free imaging. Finally, we employed Trp-BODIPY PLUS to prepare some of the first fluorogenic kisspeptin-based probes and visualized the expression and localization of GPR54 receptors in human cells and in whole mouse pancreatic islets by fluorescence imaging.
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Affiliation(s)
| | - Laia Miret‐Casals
- Department of Organic and Macromolecular ChemistryFaculty of SciencesGhent University9000GhentBelgium
| | - Nicole D. Barth
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Jinling Wang
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Anne de Bray
- Oxford Centre for DiabetesEndocrinology and Metabolism (OCDEM)Radcliffe Department of MedicineUniversity of OxfordOX3 7LEOxfordUK
| | - Massimiliano Beltramo
- Equipe Neuroendocrinologie Moleculaire de la ReproductionPhysiologie de la Reproduction et des ComportementsCentre INRA Val de Loire37380NouzillyFrance
| | - Vincent Robert
- Equipe Neuroendocrinologie Moleculaire de la ReproductionPhysiologie de la Reproduction et des ComportementsCentre INRA Val de Loire37380NouzillyFrance
| | - Christophe Ampe
- Department of Biomolecular MedicineFaculty of Medicine and Health SciencesGhent University9052GhentBelgium
| | - David J. Hodson
- Oxford Centre for DiabetesEndocrinology and Metabolism (OCDEM)Radcliffe Department of MedicineUniversity of OxfordOX3 7LEOxfordUK
| | - Annemieke Madder
- Department of Organic and Macromolecular ChemistryFaculty of SciencesGhent University9000GhentBelgium
| | - Marc Vendrell
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
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10
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Mendive‐Tapia L, Miret‐Casals L, Barth ND, Wang J, de Bray A, Beltramo M, Robert V, Ampe C, Hodson DJ, Madder A, Vendrell M. Acid-Resistant BODIPY Amino Acids for Peptide-Based Fluorescence Imaging of GPR54 Receptors in Pancreatic Islets. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 135:e202302688. [PMID: 38516305 PMCID: PMC10952496 DOI: 10.1002/ange.202302688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Indexed: 03/17/2023]
Abstract
The G protein-coupled kisspeptin receptor (GPR54 or KISS1R) is an important mediator in reproduction, metabolism and cancer biology; however, there are limited fluorescent probes or antibodies for direct imaging of these receptors in cells and intact tissues, which can help to interrogate their multiple biological roles. Herein, we describe the rational design and characterization of a new acid-resistant BODIPY-based amino acid (Trp-BODIPY PLUS), and its implementation for solid-phase synthesis of fluorescent bioactive peptides. Trp-BODIPY PLUS retains the binding capabilities of both short linear and cyclic peptides and displays notable turn-on fluorescence emission upon target binding for wash-free imaging. Finally, we employed Trp-BODIPY PLUS to prepare some of the first fluorogenic kisspeptin-based probes and visualized the expression and localization of GPR54 receptors in human cells and in whole mouse pancreatic islets by fluorescence imaging.
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Affiliation(s)
| | - Laia Miret‐Casals
- Department of Organic and Macromolecular ChemistryFaculty of SciencesGhent University9000GhentBelgium
| | - Nicole D. Barth
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Jinling Wang
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
| | - Anne de Bray
- Oxford Centre for DiabetesEndocrinology and Metabolism (OCDEM)Radcliffe Department of MedicineUniversity of OxfordOX3 7LEOxfordUK
| | - Massimiliano Beltramo
- Equipe Neuroendocrinologie Moleculaire de la ReproductionPhysiologie de la Reproduction et des ComportementsCentre INRA Val de Loire37380NouzillyFrance
| | - Vincent Robert
- Equipe Neuroendocrinologie Moleculaire de la ReproductionPhysiologie de la Reproduction et des ComportementsCentre INRA Val de Loire37380NouzillyFrance
| | - Christophe Ampe
- Department of Biomolecular MedicineFaculty of Medicine and Health SciencesGhent University9052GhentBelgium
| | - David J. Hodson
- Oxford Centre for DiabetesEndocrinology and Metabolism (OCDEM)Radcliffe Department of MedicineUniversity of OxfordOX3 7LEOxfordUK
| | - Annemieke Madder
- Department of Organic and Macromolecular ChemistryFaculty of SciencesGhent University9000GhentBelgium
| | - Marc Vendrell
- Centre for Inflammation ResearchThe University of EdinburghEH16 4TJEdinburghUK
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11
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Gomez AM, Ventura J, Uriel C, Lopez JC. Synthesis of carbohydrate–BODIPY hybrids. PURE APPL CHEM 2023. [DOI: 10.1515/pac-2023-0113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Abstract
Owing to the relevance of fluorescently labeled carbohydrates in the study of biological processes, we have investigated several routes for the preparation of saccharides covalently linked to borondipyrromethene (BODIPY) fluorophores. We have shown that BODIPY dyes can be used as aglycons through synthetic saccharide protocols. In particular, a per-alkylated 8-(2-hydroxy-methylphenyl)-4,4′-dicyano-BODIPY derivative, which withstands glycosylation and protection/deprotection reaction conditions without decomposition, has been used in the stepwise synthesis of two fluorescently labeled trisaccharides. These saccharides displayed high water solubility and a low tendency to (H-)aggregation, a phenomenon that causes loss of photophysical efficiency in BODIPYs. Two additional synthetic strategies toward glyco-BODIPYs have also been described. The first method relies on a Ferrier-type C-glycosylation of the BODIPY core, leading to linker-free carbohydrate–BODIPY hybrids. Secondly, the application of the Nicholas propargylation reaction to 1,3,5,7-tetramethyl BODIPYs provides access to 2,6-dipropargylated BODIPYs that readily undergo CuAAC reactions with azido-containing sugars. From a photophysical standpoint, the BODIPY-labeled saccharides could be used as stable and fluorescent water-soluble chromophores, thereby addressing one of the current challenges in molecular imaging.
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Affiliation(s)
- Ana M. Gomez
- Bioorganic Chemistry , IQOG-CSIC, Instituto Quimica Organica General , Juan de la Cierva 3, 28006 , Madrid , Spain
| | - Juan Ventura
- Bioorganic Chemistry , IQOG-CSIC, Instituto Quimica Organica General , Juan de la Cierva 3, 28006 , Madrid , Spain
| | - Clara Uriel
- Bioorganic Chemistry , IQOG-CSIC, Instituto Quimica Organica General , Juan de la Cierva 3, 28006 , Madrid , Spain
| | - Jose Cristobal Lopez
- Bioorganic Chemistry , IQOG-CSIC, Instituto Quimica Organica General , Juan de la Cierva 3, 28006 , Madrid , Spain
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12
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Improvement of photochemical and enzyme inhibition properties of new BODIPY compound by conjugation with cisplatin. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Wang H, Qi X, Huang T. Synthesis of a new tripod BODIPY dye bearing N- tert-Butoxycarbonyl amine and its acetylation. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2111264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Huanbin Wang
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, P R China
| | - Xin Qi
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, P R China
| | - Tianyu Huang
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, P R China
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14
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Zhang G, Wang M, Bobadova-Parvanova P, Fronczek FR, Smith KM, Vicente MGH. Investigations on the Synthesis, Reactivity, and Properties of Perfluoro-α-Benzo-Fused BOPHY Fluorophores. Chemistry 2022; 28:e202200421. [PMID: 35445459 DOI: 10.1002/chem.202200421] [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: 02/09/2022] [Indexed: 11/06/2022]
Abstract
The synthesis and reactivity of 3,8-dibromo-dodecafluoro-benzo-fused BOPHY 2 are reported, via SN Ar with O-, N- S- and C-nucleophiles, and in Pd(0)-catalyzed cross-coupling reactions (Suzuki and Stille). The resulting perfluoro-BOPHY derivatives were investigated for their reactivity in the presence of various nucleophiles. BOPHY 3 displays reversible color change and fluorescence quenching in the presence of bases (Et3 N, DBU), whereas BOPHY 7 reacts preferentially at the α-pyrrolic positions, and BOPHY 8 undergoes regioselective fluorine substitution in the presence of thiols. The structural and electronic features of the fluorinated BOPHYs were studied by TD-DFT computations. In addition, their spectroscopic and cellular properties were investigated; BOPHY 10 shows the most red-shifted absorption/emission (λmax 659/699 nm) and 7 the highest fluorescence (Φf =0.95), while all compounds studied showed low cytotoxicity toward human HEp2 cells and were efficiently internalized.
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Affiliation(s)
- Guanyu Zhang
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Maodie Wang
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Petia Bobadova-Parvanova
- Department of Chemistry and Fermentation Sciences, Appalachian State University, Boone, NC 28608, USA
| | - Frank R Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Kevin M Smith
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - M Graça H Vicente
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, 70803, USA
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15
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McDonagh AW, McNeil BL, Rousseau J, Roberts RJ, Merkens H, Yang H, Bénard F, Ramogida CF. Development of a multi faceted platform containing a tetrazine, fluorophore and chelator: synthesis, characterization, radiolabeling, and immuno-SPECT imaging. EJNMMI Radiopharm Chem 2022; 7:12. [PMID: 35666363 PMCID: PMC9170845 DOI: 10.1186/s41181-022-00164-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Combining optical (fluorescence) imaging with nuclear imaging has the potential to offer a powerful tool in personal health care, where nuclear imaging offers in vivo functional whole-body visualization, and the fluorescence modality may be used for image-guided tumor resection. Varying chemical strategies have been exploited to fuse both modalities into one molecular entity. When radiometals are employed in nuclear imaging, a chelator is typically inserted into the molecule to facilitate radiolabeling; the availability of the chelator further expands the potential use of these platforms for targeted radionuclide therapy if a therapeutic radiometal is employed. Herein, a novel mixed modality scaffold which contains a tetrazine (Tz)--for biomolecule conjugation, fluorophore-for optical imaging, and chelator-for radiometal incorporation, in one construct is presented. The novel platform was characterized for its fluorescence properties, radiolabeled with single-photon emission computed tomography (SPECT) isotope indium-111 (111In3+) and therapeutic alpha emitter actinium-225 (225Ac3+). Both radiolabels were conjugated in vitro to trans-cyclooctene (TCO)-modified trastuzumab; biodistribution and immuno-SPECT imaging of the former conjugate was assessed. RESULTS Key to the success of the platform synthesis was incorporation of a 4,4'-dicyano-BODIPY fluorophore. The route gives access to an advanced intermediate where final chelator-incorporated compounds can be easily accessed in one step prior to radiolabeling or biomolecule conjugation. The DOTA (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) conjugate was prepared, displayed good fluorescence properties, and was successfully radiolabeled with 111In & 225Ac in high radiochemical yield. Both complexes were then separately conjugated in vitro to TCO modified trastuzumab through an inverse electron demand Diels-Alder (IEDDA) reaction with the Tz. Pilot small animal in vivo immuno-SPECT imaging with [111In]In-DO3A-BODIPY-Tz-TCO-trastuzumab was also conducted and exhibited high tumor uptake (21.2 ± 5.6%ID/g 6 days post-injection) with low uptake in non-target tissues. CONCLUSIONS The novel platform shows promise as a multi-modal probe for theranostic applications. In particular, access to an advanced synthetic intermediate where tailored chelators can be incorporated in the last step of synthesis expands the potential use of the scaffold to other radiometals. Future studies including validation of ex vivo fluorescence imaging and exploiting the pre-targeting approach available through the IEDDA reaction are warranted.
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Affiliation(s)
- Anthony W McDonagh
- Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Brooke L McNeil
- Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada.,Life Sciences Division, TRIUMF, Vancouver, BC, V6T 2A3, Canada
| | - Julie Rousseau
- Department of Molecular Oncology, BC Cancer, Vancouver, BC, V5Z 1L3, Canada
| | - Ryan J Roberts
- Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Helen Merkens
- Department of Molecular Oncology, BC Cancer, Vancouver, BC, V5Z 1L3, Canada
| | - Hua Yang
- Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada.,Life Sciences Division, TRIUMF, Vancouver, BC, V6T 2A3, Canada
| | - François Bénard
- Department of Molecular Oncology, BC Cancer, Vancouver, BC, V5Z 1L3, Canada
| | - Caterina F Ramogida
- Department of Chemistry, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada. .,Life Sciences Division, TRIUMF, Vancouver, BC, V6T 2A3, Canada.
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16
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Feng Y, Zhou J, Qiu H, Schnitzlein M, Hu J, Liu L, Würthner F, Xie Z. Boron-Locked Starazine - A Soluble and Fluorescent Analogue of Starphene. Chemistry 2022; 28:e202200770. [PMID: 35388924 PMCID: PMC9325424 DOI: 10.1002/chem.202200770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Indexed: 12/26/2022]
Abstract
A starlike heterocyclic molecule containing an electron‐deficient nonaaza‐core structure and three peripheral isoquinolines locked by three tetracoordinate borons, namely isoquinoline‐nona‐starazine (QNSA), is synthesized by using readily available reactants through a rather straightforward approach. This new heteroatom‐rich QNSA possesses a quasi‐planar π‐backbone structure, and bears phenyl substituents on borons which protrude on both sides of the π‐backbones endowing it with good solubility in common organic solvents. Contrasting to its starphene analogue, QNSA shows intense fluorescence with a quantum yield (PLQY) of up to 62 % in dilute solution.
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Affiliation(s)
- Yi Feng
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology (SCUT), 510640, Guangzhou, P. R. China
| | - Jiadong Zhou
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology (SCUT), 510640, Guangzhou, P. R. China
| | - Honglin Qiu
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology (SCUT), 510640, Guangzhou, P. R. China
| | - Matthias Schnitzlein
- Institut für Organische Chemie & Center for Nanosystems Chemistry, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Jingtao Hu
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology (SCUT), 510640, Guangzhou, P. R. China
| | - Linlin Liu
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology (SCUT), 510640, Guangzhou, P. R. China
| | - Frank Würthner
- Institut für Organische Chemie & Center for Nanosystems Chemistry, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Zengqi Xie
- State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology (SCUT), 510640, Guangzhou, P. R. China
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17
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Avellanal-Zaballa E, Gartzia-Rivero L, Arbeloa T, Bañuelos J. Fundamental photophysical concepts and key structural factors for the design of BODIPY-based tunable lasers. INT REV PHYS CHEM 2022. [DOI: 10.1080/0144235x.2022.2096772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
| | | | - Teresa Arbeloa
- Dpto. Química Física, Universidad del País Vasco (UPV-EHU), Bilbao, Spain
| | - Jorge Bañuelos
- Dpto. Química Física, Universidad del País Vasco (UPV-EHU), Bilbao, Spain
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18
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Blázquez-Moraleja A, Maierhofer L, Mann E, Prieto-Montero R, Oliden-Sánchez A, Celada L, Martínez-Martínez V, Chiara MD, Chiara JL. Acetoxymethyl-BODIPY dyes: a universal platform for the fluorescent labeling of nucleophiles. Org Chem Front 2022. [DOI: 10.1039/d2qo01099b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and robust methodology has been developed for the direct incorporation of a wide variety of C-, N-, P-, O-, S-, and halo-nucleophiles into functional BODIPY conjugates in a single reaction step.
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Affiliation(s)
| | - Larissa Maierhofer
- Instituto de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Enrique Mann
- Instituto de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Ruth Prieto-Montero
- Departamento de Química Física, Universidad del País Vasco-EHU, Facultad de Ciencia y Tecnología, Apartado 644, 48080 Bilbao, Spain
| | - Ainhoa Oliden-Sánchez
- Departamento de Química Física, Universidad del País Vasco-EHU, Facultad de Ciencia y Tecnología, Apartado 644, 48080 Bilbao, Spain
| | - Lucía Celada
- Instituto de Investigación Sanitaria del Principado de Asturias, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), CIBERONC, Universidad de Oviedo, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Virginia Martínez-Martínez
- Departamento de Química Física, Universidad del País Vasco-EHU, Facultad de Ciencia y Tecnología, Apartado 644, 48080 Bilbao, Spain
| | - María-Dolores Chiara
- Instituto de Investigación Sanitaria del Principado de Asturias, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), CIBERONC, Universidad de Oviedo, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Jose Luis Chiara
- Instituto de Química Orgánica General (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
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19
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Wang M, Zhang G, Bobadova-Parvanova P, Smith KM, Vicente MGH. Syntheses and Investigations of Conformationally Restricted, Linker-Free α-Amino Acid-BODIPYs via Boron Functionalization. J Org Chem 2021; 86:18030-18041. [PMID: 34807610 PMCID: PMC8689652 DOI: 10.1021/acs.joc.1c02328] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of α-amino acid-BODIPY derivatives were synthesized using commercially available N-Boc-l-amino acids, via boron functionalization under mild conditions. The mono-linear, mono-spiro, and di-amino acid-BODIPY derivatives were obtained using an excess of basic (histidine, lysine, and arginine), acidic (aspartic acid), polar (tyrosine, serine), and nonpolar (methionine) amino acid residues, in yields that ranged from 37 to 66%. The conformationally restricted mono-spiro- and di-amino acid-BODIPYs display strong absorptions in the visible spectral region with high molar extinction coefficients and significantly enhanced fluorescence quantum yields compared with the parent BF2-BODIPY. Cellular uptake and cytotoxicity studies using the human HEp2 cell line show that both the presence of an N,O-bidentate spiro-ring and basic amino acids (His and Arg) increase cytotoxicity and enhance cellular uptake. Among the series of BODIPYs tested, the spiro-Arg- and spiro-His-BODIPYs were found to be the most cytotoxic (IC50 ∼ 22 μM), while the spiro-His-BODIPY was the most efficiently internalized, localizing preferentially in the cell lysosomes, ER, and mitochondria.
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Affiliation(s)
- Maodie Wang
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Guanyu Zhang
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Petia Bobadova-Parvanova
- Department of Chemistry and Fermentation Sciences, Appalachian State University, Boone, North Carolina 28607, United States
| | - Kevin M Smith
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - M Graça H Vicente
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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20
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Uriel C, Gómez AM, García Martínez de la Hidalga E, Bañuelos J, Garcia-Moreno I, López JC. Access to 2,6-Dipropargylated BODIPYs as "Clickable" Congeners of Pyrromethene-567 Dye: Photostability and Synthetic Versatility. Org Lett 2021; 23:6801-6806. [PMID: 34403255 PMCID: PMC8419863 DOI: 10.1021/acs.orglett.1c02380] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
![]()
Hitherto
unreported
2,6-dipropargyl-1,3,5,7-tetramethyl BODIPYs
can be efficiently prepared by a Nicholas reaction/decomplexation
protocol from 1,3,5,7-tetramethyl BODIPYs. The title compounds, which
improve the BODIPY photostability by retaining their inherent photophysical
and photochemical properties, can be engaged in efficient copper(I)-catalyzed
azide–alkyne cycloaddition (CuAAC) “click-type”
reactions with azido derivatives to provide all-BODIPY-triads or conjugated
BODIPYs.
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Affiliation(s)
- Clara Uriel
- Instituto de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| | - Ana M Gómez
- Instituto de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| | | | - Jorge Bañuelos
- Departamento de Química Física. Universidad del Pais Vasco-EHU, Apartado 644, 48080, Bilbao, Spain
| | | | - J Cristobal López
- Instituto de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
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21
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Gomez AM, Lopez JC. Bringing Color to Sugars: The Chemical Assembly of Carbohydrates to BODIPY Dyes. CHEM REC 2021; 21:3112-3130. [PMID: 34472184 DOI: 10.1002/tcr.202100190] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/10/2021] [Indexed: 12/29/2022]
Abstract
The combination of carbohydrates with BODIPY fluorophores gives rise to a family of BODIPY-carbohydrate hybrids or glyco-BODIPYs, which mutually benefit from the encounter. Thus, from the carbohydrates standpoint, glyco-BODIPYs can be regarded as fluorescent glycoconjugate derivatives with application in imaging techniques, whereas from the fluorophore view the BODIPY-carbohydrate hybrids benefit from the biocompatibility, water-solubility, and reduced toxicity, among others, brought about by the sugar moiety. In this Account we have intended to present the collection of available methods for the synthesis of BODIPY-carbohydrate hybrids, with a focus on the chemical transformations on the BODIPY core.
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Affiliation(s)
- Ana M Gomez
- Bioorganic Chemistry Department, Instituto Quimica Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - J Cristobal Lopez
- Bioorganic Chemistry Department, Instituto Quimica Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
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22
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Stemler T, Hoffmann C, Hierlmeier IM, Maus S, Krause E, Ezziddin S, Jung G, Bartholomä MD. A Structure-Activity Relationship Study of Bimodal BODIPY-Labeled PSMA-Targeting Bioconjugates. ChemMedChem 2021; 16:2535-2545. [PMID: 33905162 PMCID: PMC8453963 DOI: 10.1002/cmdc.202100210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Indexed: 12/15/2022]
Abstract
The aim of this study was to identify a high-affinity BODIPY peptidomimetic that targets the prostate-specific membrane antigen (PSMA) as a potential bimodal imaging probe for prostate cancer. For the structure-activity study, several BODIPY (difluoroboron dipyrromethene) derivatives with varying spacers between the BODIPY dye and the PSMA Glu-CO-Lys binding motif were prepared. Corresponding affinities were determined by competitive binding assays in PSMA-positive LNCaP cells. One compound was identified with comparable affinity (IC50 =21.5±0.1 nM) to Glu-CO-Lys-Ahx-HBED-CC (PSMA-11) (IC50 =18.4±0.2 nM). Radiolabeling was achieved by Lewis-acid-mediated 19 F/18 F exchange in moderate molar activities (∼0.7 MBq nmol-1 ) and high radiochemical purities (>99 %) with mean radiochemical yields of 20-30 %. Cell internalization of the 18 F-labeled high-affinity conjugate was demonstrated in LNCaP cells showing gradual increasing PSMA-mediated internalization over time. By fluorescence microscopy, localization of the high-affinity BODIPY-PSMA conjugate was found in the cell membrane at early time points and also in subcellular compartments at later time points. In summary, a high-affinity BODIPY-PSMA conjugate has been identified as a suitable candidate for the development of PSMA-specific dual-imaging agents.
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Affiliation(s)
- Tobias Stemler
- Department of Nuclear MedicineSaarland University – Medical CenterKirrbergerstrasse66421HomburgGermany
| | - Caroline Hoffmann
- Department of Biophysical ChemistrySaarland UniversityCampus B2 266123SaarbrückenGermany
| | - Ina M. Hierlmeier
- Department of Nuclear MedicineSaarland University – Medical CenterKirrbergerstrasse66421HomburgGermany
| | - Stephan Maus
- Department of Nuclear MedicineSaarland University – Medical CenterKirrbergerstrasse66421HomburgGermany
| | - Elmar Krause
- Department of Cellular NeurophysiologyCenter for Integrative Physiology and Molecular Medicine (CIPMM)Saarland UniversityKirrbergerstrasse66421HomburgGermany
| | - Samer Ezziddin
- Department of Nuclear MedicineSaarland University – Medical CenterKirrbergerstrasse66421HomburgGermany
| | - Gregor Jung
- Department of Biophysical ChemistrySaarland UniversityCampus B2 266123SaarbrückenGermany
| | - Mark D. Bartholomä
- Department of Nuclear MedicineSaarland University – Medical CenterKirrbergerstrasse66421HomburgGermany
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23
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Ragab SS. Synthesis and photolysis of new BODIPY derivatives with chelated boron centre. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621500516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
New borondipyromethene (BODIPY) derivatives chelated at the boron centre with different catecholate and salicylate ligands were synthesized via substituting the fluoride atoms with the aid of aluminum chloride that activates the boron-fluoride bond for substitution. The photophysical properties of the novel BODIPYs were investigated by normalized UV-vis absorption as well as the fluorescence emission spectra. Moreover, the fluorescence quantum yields of the chelated BODIPYs were also calculated and the ultraviolet irradiation of the salicylate derivatives was studied.
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Affiliation(s)
- Sherif S. Ragab
- Photochemistry Department, Chemical Industries Research Division, National Research Centre (NRC). El behouth Street, Dokki, Giza, 12622, Egypt
- Laboratory for Molecular Photonics, Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, FL 33146-0431, USA
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24
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De Bonfils P, Péault L, Nun P, Coeffard V. State of the Art of Bodipy‐Based Photocatalysts in Organic Synthesis. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001446] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Paul De Bonfils
- CEISAM UMR CNRS 6230 Université de Nantes 44000 Nantes France
| | - Louis Péault
- CEISAM UMR CNRS 6230 Université de Nantes 44000 Nantes France
| | - Pierrick Nun
- CEISAM UMR CNRS 6230 Université de Nantes 44000 Nantes France
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25
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Mhlongo NZ, Ebenhan T, Driver CHS, Maguire GEM, Kruger HG, Govender T, Naicker T. Microwave-assisted synthesis of meso-carboxyalkyl-BODIPYs and an application to fluorescence imaging. Org Biomol Chem 2020; 18:7876-7883. [PMID: 32986056 DOI: 10.1039/d0ob01415j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this study, a significantly improved method for the synthesis of modular meso-BODIPY (boron dipyrromethene) derivatives possessing a free carboxylic acid group (which was subsequently coupled to peptides), is disclosed. This method provides a vastly efficient synthetic route with a > threefold higher overall yield than other reports. The resultant meso-BODIPY acid allowed for further easy incorporation into peptides. The meso-BODIPY peptides showed absorption maxima from 495-498 nm and emission maxima from 504-506 nm, molar absorptivity coefficients from 33 383-80 434 M-1 cm-1 and fluorescent quantum yields from 0.508-0.849. The meso-BODIPY-c(RGDyK) peptide was evaluated for plasma stability and (proved to be durable even up to 4 h) was then assessed for its fluorescence imaging applicability in vivo and ex vivo. The optical imaging in vivo was limited due to autofluorescence, however, the ex vivo tissue analysis displayed BODIPY-c(RGDyK) internalization and cancer detection thereby making it a novel tumor-integrin associated fluorescent probe while displaying the lack of interference the dye has on the properties of this ligand to bind the receptor.
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Affiliation(s)
- Neliswa Z Mhlongo
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa.
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Wang R, Bukowski BC, Duan J, Sheridan TR, Atilgan A, Zhang K, Snurr RQ, Hupp JT. Investigating the Process and Mechanism of Molecular Transport within a Representative Solvent-Filled Metal-Organic Framework. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10853-10859. [PMID: 32841562 DOI: 10.1021/acs.langmuir.0c01999] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Effective permeation into, and diffusive mass transport within, solvent-filled metal-organic frameworks (MOFs) is critical in applications such as MOF-based chemical catalysis of condensed-phase reactions. In this work, we studied the entry from solution of a luminescent probe molecule, 1,3,5,7-tetramethyl-4,4-difluoroboradiazaindacene (BODIPY), into the 1D channel-type, zirconium-based MOF NU-1008 and subsequent transport of the probe through the MOF. Measurements were accomplished via in situ confocal fluorescence microscopy of individual crystallites, where the evolution of the fluorescence response from the crystallite was followed as functions of both time and location within the crystallite. From the confocal data, intracrystalline transport of BODIPY is well-described by one-dimensional diffusion along the channel direction. Varying the chemical identity of the solvent revealed an inverse dependence of probe-molecule diffusivity on bulk-solvent viscosity, qualitatively consistent with expectations from the Stokes-Einstein equation for molecular diffusion. At a more quantitative level, however, measured diffusion coefficients are about 100-fold smaller than expected from Stokes-Einstein, pointing to substantial channel-confinement effects. Evaluation of the confocal data also reveals a non-negligible mass transport resistance, i.e., surface barrier, associated with the probe molecule leaving the solution and permeating the exterior surface of the MOF. Permeation by the probe entails displacement of solvent from the MOF channels. The magnitude of the resistance increases with the size of the solvent molecule. This work draws attention to the importance of MOF structure, external-surface barriers, and solvent molecule identity to the overall transport process in MOFs, which should assist in understanding the performance of MOFs in applications such as condensed-phase heterogeneous catalysis.
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Affiliation(s)
- Rui Wang
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Brandon C Bukowski
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Jiaxin Duan
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Thomas R Sheridan
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Ahmet Atilgan
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Kun Zhang
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
| | - Randall Q Snurr
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Joseph T Hupp
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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Uriel C, Permingeat C, Ventura J, Avellanal-Zaballa E, Bañuelos J, García-Moreno I, Gómez AM, Lopez JC. BODIPYs as Chemically Stable Fluorescent Tags for Synthetic Glycosylation Strategies towards Fluorescently Labeled Saccharides. Chemistry 2020; 26:5388-5399. [PMID: 31999023 DOI: 10.1002/chem.201905780] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Indexed: 12/11/2022]
Abstract
A series of fluorescent boron-dipyrromethene (BODIPY, 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene) dyes have been designed to participate, as aglycons, in synthetic oligosaccharide protocols. As such, they served a dual purpose: first, by being incorporated at the beginning of the process (at the reducing-end of the growing saccharide moiety), they can function as fluorescent glycosyl tags, facilitating the detection and purification of the desired glycosidic intermediates, and secondly, the presence of these chromophores on the ensuing compounds grants access to fluorescently labeled saccharides. In this context, a sought-after feature of the fluorescent dyes has been their chemical robustness. Accordingly, some BODIPY derivatives described in this work can withstand the reaction conditions commonly employed in the chemical synthesis of saccharides; namely, glycosylation and protecting-group manipulations. Regarding their photophysical properties, the BODIPY-labeled saccharides obtained in this work display remarkable fluorescence efficiency in water, reaching quantum yield values up to 82 %, as well as notable lasing efficiencies and photostabilities.
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Affiliation(s)
- Clara Uriel
- Instituto de Química Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Caterina Permingeat
- Instituto de Química Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - Juan Ventura
- Instituto de Química Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | | | - Jorge Bañuelos
- Dpto. Química Física, Universidad del País Vasco (UPV/EHU), Aptdo. 644, 48080, Bilbao, Spain
| | | | - Ana M Gómez
- Instituto de Química Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
| | - J Cristobal Lopez
- Instituto de Química Organica General (IQOG-CSIC), Juan de la Cierva 3, 28006, Madrid, Spain
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Wang M, Zhang G, Kaufman NEM, Bobadova-Parvanova P, Fronczek FR, Smith KM, Vicente MGH. Linker-Free Near-IR Aza-BODIPY-Glutamine Conjugates Through Boron Functionalization. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901772] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Maodie Wang
- Department of Chemistry; Louisiana State University; LA 70803 Baton Rouge USA
| | - Guanyu Zhang
- Department of Chemistry; Louisiana State University; LA 70803 Baton Rouge USA
| | | | | | - Frank R. Fronczek
- Department of Chemistry; Louisiana State University; LA 70803 Baton Rouge USA
| | - Kevin M. Smith
- Department of Chemistry; Louisiana State University; LA 70803 Baton Rouge USA
| | - M. Graça H. Vicente
- Department of Chemistry; Louisiana State University; LA 70803 Baton Rouge USA
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Ray C, Schad C, Avellanal-Zaballa E, Moreno F, Maroto BL, Bañuelos J, García-Moreno I, de la Moya S. Multichromophoric COO-BODIPYs: an advantageous design for the development of energy transfer and electron transfer systems. Chem Commun (Camb) 2020; 56:13025-13028. [DOI: 10.1039/d0cc04902f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Synthesis and photonics avails a new design for multichromophoric arrays.
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Affiliation(s)
- César Ray
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Ciudad Universitaria s/n
- Madrid
| | - Christopher Schad
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Ciudad Universitaria s/n
- Madrid
| | | | - Florencio Moreno
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Ciudad Universitaria s/n
- Madrid
| | - Beatriz L. Maroto
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Ciudad Universitaria s/n
- Madrid
| | - Jorge Bañuelos
- Depto. de Química Física
- Universidad del Pais Vasco-EHU
- Bilbao
- Spain
| | - Inmaculada García-Moreno
- Depto. de Sistemas de Baja Dimensionalidad
- Superficies y Materia Condensada
- Instituto de Química-Física Rocasolano
- Centro Superior de Investigaciones Científicas (CSIC)
- 28006 Madrid
| | - Santiago de la Moya
- Depto. de Química Orgánica I
- Facultad de CC. Químicas
- Universidad Complutense de Madrid
- Ciudad Universitaria s/n
- Madrid
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Wang M, Zhang G, Bobadova-Parvanova P, Merriweather AN, Odom L, Barbosa D, Fronczek FR, Smith KM, Vicente MGH. Synthesis and Investigation of Linker-Free BODIPY–Gly Conjugates Substituted at the Boron Atom. Inorg Chem 2019; 58:11614-11621. [DOI: 10.1021/acs.inorgchem.9b01474] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maodie Wang
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Guanyu Zhang
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | | | - Ashley N. Merriweather
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Lilian Odom
- Department of Chemistry, Rockhurst University, Kansas City, Missouri 64110, United States
| | - David Barbosa
- Department of Chemistry, Rockhurst University, Kansas City, Missouri 64110, United States
| | - Frank R. Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Kevin M. Smith
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - M. Graça H. Vicente
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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Wang Z, Cheng C, Kang Z, Miao W, Liu Q, Wang H, Hao E. Organotrifluoroborate Salts as Complexation Reagents for Synthesizing BODIPY Dyes Containing Both Fluoride and an Organo Substituent at the Boron Center. J Org Chem 2019; 84:2732-2740. [DOI: 10.1021/acs.joc.8b03145] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhaoyun Wang
- Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Cheng Cheng
- Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Zhengxin Kang
- Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Wei Miao
- Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Qingyun Liu
- College of Chemistry and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266510, China
| | - Hua Wang
- Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
| | - Erhong Hao
- Laboratory of Functional Molecular Solids, Ministry of Education; School of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
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Clarke RG, Hall MJ. Recent developments in the synthesis of the BODIPY dyes. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2018.12.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Zhang G, Wang M, Fronczek FR, Smith KM, Vicente MGH. Lewis-Acid-Catalyzed BODIPY Boron Functionalization Using Trimethylsilyl Nucleophiles. Inorg Chem 2018; 57:14493-14496. [DOI: 10.1021/acs.inorgchem.8b02775] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guanyu Zhang
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Maodie Wang
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Frank R. Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Kevin M. Smith
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - M. Graça H. Vicente
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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LaMaster DJ, Kaufman NEM, Bruner AS, Vicente MGH. Structure Based Modulation of Electron Dynamics in meso-(4-Pyridyl)-BODIPYs: A Computational and Synthetic Approach. J Phys Chem A 2018; 122:6372-6380. [PMID: 30016866 PMCID: PMC6693353 DOI: 10.1021/acs.jpca.8b05153] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The effects of structural modification on the electronic structure and electron dynamics of cationic meso-(4-pyridyl)-BODIPYs were investigated. A library of 2,6-difunctionalized meso-(4-pyridyl)-BODIPYs bearing various electron-withdrawing substituents was designed, and DFT calculations were used to model the redox properties, while TDDFT was used to determine the effects of functionalization on the excited states. Structural modification was able to restructure the low-lying molecular orbitals to effectively inhibit d-PeT. A new meso-(4-pyridyl)-BODIPY bearing 2,6-dichloro groups was synthesized and shown to exhibit enhanced charge recombination fluorescence. The fluorescence enhancement was determined to be the result of functionalization modulating the kinetics of the excited state dynamics.
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Affiliation(s)
- Daniel J. LaMaster
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Nichole E. M. Kaufman
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Adam S. Bruner
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - M. Graça H. Vicente
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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