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Zhang S, Lloveras V, Wu Y, Tolosa J, García-Martínez JC, Vidal-Gancedo J. Fluorescent and Magnetic Radical Dendrimers as Potential Bimodal Imaging Probes. Pharmaceutics 2023; 15:1776. [PMID: 37376224 DOI: 10.3390/pharmaceutics15061776] [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: 04/19/2023] [Revised: 06/05/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Dual or multimodal imaging probes have emerged as powerful tools that improve detection sensitivity and accuracy in disease diagnosis by imaging techniques. Two imaging techniques that are complementary and do not use ionizing radiation are magnetic resonance imaging (MRI) and optical fluorescence imaging (OFI). Herein, we prepared metal-free organic species based on dendrimers with magnetic and fluorescent properties as proof-of-concept of bimodal probes for potential MRI and OFI applications. We used oligo(styryl)benzene (OSB) dendrimers core that are fluorescent on their own, and TEMPO organic radicals anchored on their surfaces, as the magnetic component. In this way, we synthesized six radical dendrimers and characterized them by FT-IR, 1H NMR, UV-Vis, MALDI-TOF, SEC, EPR, fluorimetry, and in vitro MRI. Importantly, it was demonstrated that the new dendrimers present two properties: on one hand, they are paramagnetic and show the ability to generate contrast by MRI in vitro, and, on the other hand, they also show fluoresce emission. This is a remarkable result since it is one of the very few cases of macromolecules with bimodal magnetic and fluorescent properties using organic radicals as the magnetic probe.
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Affiliation(s)
- Songbai Zhang
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Vega Lloveras
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Campus UAB, 08193 Bellaterra, Spain
| | - Yufei Wu
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - Juan Tolosa
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Farmacia, Universidad de Castilla-La Mancha, C/José María Sánchez Ibáñez s/n, 02008 Albacete, Spain
- Regional Center for Biomedical Research (CRIB), Universidad de Castilla-La Mancha, C/Almansa 13, 02008 Albacete, Spain
| | - Joaquín C García-Martínez
- Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Farmacia, Universidad de Castilla-La Mancha, C/José María Sánchez Ibáñez s/n, 02008 Albacete, Spain
- Regional Center for Biomedical Research (CRIB), Universidad de Castilla-La Mancha, C/Almansa 13, 02008 Albacete, Spain
| | - José Vidal-Gancedo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, Campus UAB, 08193 Bellaterra, Spain
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Lloveras V, Vidal-Gancedo J. Polyphosphorhydrazone-Based Radical Dendrimers. Molecules 2021; 26:1230. [PMID: 33669016 PMCID: PMC7956296 DOI: 10.3390/molecules26051230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 01/28/2023] Open
Abstract
The search for new biomedical applications of dendrimers has promoted the synthesis of new radical-based molecules. Specifically, obtaining radical dendrimers has opened the door to their use in various fields such as magnetic resonance imaging, as anti-tumor or antioxidant agents, or the possibility of developing new types of devices based on the paramagnetic properties of organic radicals. Herein, we present a mini review of radical dendrimers based on polyphosphorhydrazone, a new type of macromolecule with which, thanks to their versatility, new metal-free contrast agents are being obtained, among other possible applications.
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Affiliation(s)
- Vega Lloveras
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and CIBER-BBN, Campus UAB, 08193 Bellaterra, Spain
| | - José Vidal-Gancedo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and CIBER-BBN, Campus UAB, 08193 Bellaterra, Spain
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3
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Badetti E, Lloveras V, Amadio E, Di Lorenzo R, Olivares-Marín M, Tesio AY, Zhang S, Pan F, Rissanen K, Veciana J, Tonti D, Vidal-Gancedo J, Zonta C, Licini G. Organic Polyradicals as Redox Mediators: Effect of Intramolecular Radical Interactions on Their Efficiency. ACS APPLIED MATERIALS & INTERFACES 2020; 12:45968-45975. [PMID: 32930562 PMCID: PMC8011802 DOI: 10.1021/acsami.0c09386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The spin-spin interactions between unpaired electrons in organic (poly)radicals, especially nitroxides, are largely investigated and are of crucial importance for their applications in areas such as organic magnetism, molecular charge transfer, or multiple spin labeling in structural biology. Recently, 2,2,6,6-tetramethylpiperidinyloxyl and polymers functionalized with nitroxides have been described as successful redox mediators in several electrochemical applications; however, the study of spin-spin interaction effect in such an area is absent. This communication reports the preparation of a novel family of discrete polynitroxide molecules, with the same number of radical units but different arrangements to study the effect of intramolecular spin-spin interactions on their electrochemical potential and their use as oxidation redox mediators in a Li-oxygen battery. We find that the intensity of interactions, as measured by the d1/d electron paramagnetic resonance parameter, progressively lowers the reduction potential. This allows us to tune the charging potential of the battery, optimizing its energy efficiency.
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Affiliation(s)
- Elena Badetti
- Department of Chemical Sciences and CIRCC Padova Unit, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Vega Lloveras
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra, E-08193 Cerdanyola del Vallès, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), E-08193 Barcelona, Spain
| | - Emanuele Amadio
- Department of Chemical Sciences and CIRCC Padova Unit, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Rosalia Di Lorenzo
- Department of Chemical Sciences and CIRCC Padova Unit, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Mara Olivares-Marín
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra, E-08193 Cerdanyola del Vallès, Spain
- Department of Mechanical, Energy and Materials Engineering, University Centre of Mérida, University of Extremadura, Avda. Santa Teresa de Jornet, 38, 06800 Mérida, Spain
| | - Alvaro Y Tesio
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra, E-08193 Cerdanyola del Vallès, Spain
- Centro de Investigación y Desarrollo en Materiales Avanzados y Almacenamiento de Energía de Jujuy (CIDMEJu), Centro de Desarrollo Tecnológico General Manuel Savio, Av. Martijena S/N, Palpalá Y 4612, Jujuy, Argentina
| | - Songbai Zhang
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra, E-08193 Cerdanyola del Vallès, Spain
| | - Fangfang Pan
- Department of Chemistry, University of Jyvaskyla, P. O. Box 35, 40014 Jyväskylä, Finland
| | - Kari Rissanen
- Department of Chemistry, University of Jyvaskyla, P. O. Box 35, 40014 Jyväskylä, Finland
| | - Jaume Veciana
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra, E-08193 Cerdanyola del Vallès, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), E-08193 Barcelona, Spain
| | - Dino Tonti
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra, E-08193 Cerdanyola del Vallès, Spain
| | - Jose Vidal-Gancedo
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus Universitari de Bellaterra, E-08193 Cerdanyola del Vallès, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), E-08193 Barcelona, Spain
| | - Cristiano Zonta
- Department of Chemical Sciences and CIRCC Padova Unit, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Giulia Licini
- Department of Chemical Sciences and CIRCC Padova Unit, University of Padova, Via Marzolo 1, 35131 Padova, Italy
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Uddin MA, Yu H, Wang L, Naveed K, Haq F, Amin BU, Mehmood S, Nazir A, Xing Y, Shen D. Recent progress in
EPR
study of spin labeled polymers and spin probed polymer systems. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200039] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Md Alim Uddin
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Haojie Yu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Li Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Kaleem‐ur‐Rahman Naveed
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Fazal Haq
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Bilal Ul Amin
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Sahid Mehmood
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Ahsan Nazir
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Yusheng Xing
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
| | - Di Shen
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou Zhejiang China
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