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Duraiyarasu M, Kumaran SS, Mayilmurugan R. Alkyl Chain Appended Fe(III) Catecholate Complex as a Dual-Modal T1 MRI-NIR Fluorescence Imaging Agent via Second Sphere Water Interactions. ACS Biomater Sci Eng 2023. [PMID: 37141045 DOI: 10.1021/acsbiomaterials.3c00203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The C12-alkyl chain-conjugated Fe(III) catecholate complex [Fe(C12CAT)3]3-, Fe(C12CAT)3 [C12CAT = N-(3,4-dihydroxyphenethyl)dodecanamide], was synthesized and characterized, reported as a dual-modal T1-MRI and an optical imaging probe. The DFT-optimized structure of Fe(C12CAT)3 reveals a distorted octahedral coordination geometry around the high spin Fe(III) center. The formation constant (-log K) of Fe(C12CAT)3 was calculated as 45.4. The complex exhibited r1-relaxivity values of 2.31 ± 0.12 and 1.52 ± 0.06 mM-1 s-1 at 25 and 37 °C, respectively, on 1.41 T at pH 7.3 via second-sphere water interactions. The interaction of Fe(C12CAT)3 with human serum albumin showed concomitant enhancement of r1-relaxivity to 6.44 ± 0.15 mM-1 s-1. The MR phantom images are significantly brighter and directly correlate to the concentration of Fe(C12CAT)3. Adding an external fluorescent marker IR780 dye to Fe(C12CAT)3 leads to the formation of self-assembly by C12-alkyl chains. It resulted in the fluorescence quenching of the dye, and its critical aggregation concentration was calculated as 70 μM. The aggregated matrix of Fe(C12CAT)3 and IR780 dye is spherical, with an average hydrodynamic diameter of 189.5 nm. This self-assembled supramolecular system is found to be non-fluorescent and was "turn-on" under acidic pH via dissociation of aggregates. The r1-relaxivity is found to be unchanged during the matrix aggregation and disaggregation. The probe showed MRI ON and fluorescent OFF under physiological conditions and MRI ON and fluorescent ON under acidic pH. The cell viability experiments showed that the cells are 80% viable at 1 mM probe concentration. Fluorescence experiments and MR phantom images showed that Fe(C12CAT)3 is a potential dual model imaging probe to visualize the acidic pH environment of the cells.
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Affiliation(s)
- Maheshwaran Duraiyarasu
- Department of Chemistry, and Department of Bioscience & Biomedical Engineering, Indian Institute of Technology Bhilai, Raipur, Chattisgarh 492015, India
| | - S Senthil Kumaran
- Department of NMR, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, India
| | - Ramasamy Mayilmurugan
- Department of Chemistry, and Department of Bioscience & Biomedical Engineering, Indian Institute of Technology Bhilai, Raipur, Chattisgarh 492015, India
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Wu Q, Lei Q, Zhong HC, Ren TB, Sun Y, Zhang XB, Yuan L. Fluorophore-based host-guest assembly complexes for imaging and therapy. Chem Commun (Camb) 2023; 59:3024-3039. [PMID: 36785939 DOI: 10.1039/d2cc06286k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Recently, supramolecular chemistry with its unique properties has received considerable attention in many fields. Supramolecular fluorescent systems constructed on the basis of macrocyclic hosts are not only effective in overcoming the limitations of imaging and diagnostic reagents, but also in enhancing their performances. This paper summarizes the recent advances in supramolecular fluorescent systems based on host-guest interactions and their application in bioimaging and therapy as well as the challenges and prospects in developing novel supramolecular fluorescent systems.
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Affiliation(s)
- Qian Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Qian Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Hai-Chen Zhong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Tian-Bing Ren
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Yao Sun
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China.
| | - Xiao-Bing Zhang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.
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Stepping Further from Coupling Tools: Development of Functional Polymers via the Biginelli Reaction. Molecules 2022; 27:molecules27227886. [PMID: 36431987 PMCID: PMC9698737 DOI: 10.3390/molecules27227886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 11/17/2022] Open
Abstract
Multicomponent reactions (MCRs) have been used to prepare polymers with appealing functions. The Biginelli reaction, one of the oldest and most famous MCRs, has sparked new scientific discoveries in polymer chemistry since 2013. Recent years have seen the Biginelli reaction stepping further from simple coupling tools; for example, the functions of the Biginelli product 3,4-dihydropyrimidin-2(1H)-(thi)ones (DHPM(T)) have been gradually exploited to develop new functional polymers. In this mini-review, we mainly summarize the recent progress of using the Biginelli reaction to identify polymers for biomedical applications. These polymers have been documented as antioxidants, anticancer agents, and bio-imaging probes. Moreover, we also provide a brief introduction to some emerging applications of the Biginelli reaction in materials and polymer science. Finally, we present our perspectives for the further development of the Biginelli reaction in polymer chemistry.
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Yuan J, Dong S, Hao J. Fluorescent assemblies: Synergistic of amphiphilic molecules and fluorescent elements. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Snari RM, Al‐Qahtani SD, Aldawsari AM, Alnoman RB, Ibarhiam SF, Alaysuy O, Shaaban F, El‐Metwaly NM. Development of novel reversible thermometer from
N
‐isopropylacrylamide and dicyanodihydrofuran hydrazone probe. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Razan M. Snari
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
| | - Salhah D. Al‐Qahtani
- Department of Chemistry, College of Science Princess Nourah bint Abdulrahman University Riyadh Saudi Arabia
| | - Afrah M. Aldawsari
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry King abdulaziz City for Science and Technology Riyadh Saudi Arabia
| | - Rua B. Alnoman
- Department of Chemistry, College of Science Taibah University Madinah Saudi Arabia
| | - Saham F. Ibarhiam
- Department of Chemistry, College of Science University of Tabuk Tabuk Saudi Arabia
| | - Omaymah Alaysuy
- Department of Chemistry, College of Science University of Tabuk Tabuk Saudi Arabia
| | - Fathy Shaaban
- Environment and Health Research Department, The Custodian of the Two Holy Mosques Institute for Hajj and Umrah Research Umm Al‐Qura University Makkah Saudi Arabia
- Geomagnetic and Geoelectric Department National Research Institute of Astronomy and Geophysics Cairo Egypt
| | - Nashwa M. El‐Metwaly
- Department of Chemistry, Faculty of Applied Science Umm‐Al‐Qura University Makkah Saudi Arabia
- Department of Chemistry, Faculty of Science Mansoura University Mansoura Egypt
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Feng Z, Zhu T, Wang L, Yuan T, Jiang Y, Tian X, Tian Y, Zhang Q. Coordination-Regulated Terpyridine-Mn(II) Complexes for Photodynamic Therapy Guided by Multiphoton Fluorescence/Magnetic Resonance Imaging. Inorg Chem 2022; 61:12652-12661. [PMID: 35921656 DOI: 10.1021/acs.inorgchem.2c01603] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The synergy of multiphoton fluorescence imaging (MP-FI) and magnetic resonance imaging (MRI) provides an imaging platform with high resolution and unlimited penetration depth for early disease detection. Herein, two kinds of terpyridine-Mn(II) complexes (FD-Mn-O2NO and FD-Mn-FD) possessing seven and six coordination modes, respectively, were designed rationally for photodynamic therapy (PDT) guided by MP-FI/MRI. The complexes obtain different multiphoton fluorescence/magnetic resonance properties by adjusting the number of terpyridine ligands. Among them, FD-Mn-FD exhibits the following superiorities: (1) The optimal three-photon excitation wavelength of FD-Mn-FD falls at 1450 nm (NIR-II), which brings high sensitivity and deep tissue penetration in MP-FI. (2) FD-Mn-FD has effective longitudinal relaxation efficiency (r1 = 2.6 m M-1 s-1), which can be used for T1-weighted MRI, overcoming the problems of limited tissue penetration depth and low spatial resolution. (3) FD-Mn-FD generates endogenous 1O2 under irradiation by 808 nm light, thereby enhancing the PDT effect in vitro and in vivo. To the best of our knowledge, the complex FD-Mn-FD is the first complex to guide PDT through MP-FI/MRI, providing a blueprint for accurate and effective early detection and timely treatment of the complex in the early stages of cancer.
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Affiliation(s)
- Zhihui Feng
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Tong Zhu
- Huaxi MR Research Centre (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu 610000, P. R. China
| | - Lianke Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China
| | - Tong Yuan
- School of Life Science, Anhui University, Hefei 230601, P. R. China
| | - Yufei Jiang
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P.R.China
| | - Xiaohe Tian
- Huaxi MR Research Centre (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province, Department of Radiology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu 610000, P. R. China
| | - Yupeng Tian
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China.,State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P.R.China
| | - Qiong Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, P. R. China.,State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P.R.China
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Bao Y. Controlling Molecular Aggregation-Induced Emission by Controlled Polymerization. Molecules 2021; 26:6267. [PMID: 34684848 PMCID: PMC8540238 DOI: 10.3390/molecules26206267] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 11/16/2022] Open
Abstract
In last twenty years, the significant development of AIE materials has been witnessed. A number of small molecules, polymers and composites with AIE activity have been synthesized, with some of these exhibiting great potential in optoelectronics and biomedical applications. Compared to AIE small molecules, macromolecular systems-especially well-defined AIE polymers-have been studied relatively less. Controlled polymerization methods provide the efficient synthesis of well-defined AIE polymers with varied monomers, tunable chain lengths and narrow dispersity. In particular, the preparation of single-fluorophore polymers through AIE molecule-initiated polymerization enables the systematic investigation of the structure-property relationships of AIE polymeric systems. Here, the main polymerization techniques involved in these polymers are summarized and the key parameters that affect their photophysical properties are analyzed. The author endeavored to collect meaningful information from the descriptions of AIE polymer systems in the literature, to find connections by comparing different representative examples, and hopes eventually to provide a set of general guidelines for AIE polymer design, along with personal perspectives on the direction of future research.
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Affiliation(s)
- Yinyin Bao
- Department of Chemistry and Applied Biosciences, Institute of Pharmaceutical Sciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
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