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Mu B, Zhao F, Chu Y, Li C, Sun J, Zhao Q, Bai S. Improvement of luminescence characteristics of ZnGa2O4:Tb3+ nanophosphors by Ce3+ codoping. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100976] [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)
- Boshi Mu
- Qiqihar University School of Science 161006 Qiqihar CHINA
| | - Feng Zhao
- Liaoning Normal University School of Physics and Electronic Technology 850 Huanghe Road 116029 Dalian CHINA
| | - Yunting Chu
- Liaoning Normal University School of Physics and Electronic Technology 850 Huanghe Road 116029 Dalian CHINA
| | - Chengren Li
- Liaoning Normal University 850 Huanghe Road Dalian CHINA
| | - Jingchang Sun
- Liaoning Normal University School of Physics and Electronic Technology 850 Huanghe Road 116029 Dalian CHINA
| | - Qianyun Zhao
- Liaoning Normal University School of Physics and Electronic Technology 850 Huanghe Road 116029 Dalian CHINA
| | - Suyuan Bai
- Liaoning Normal University School of Physics and Electronic Technology 850 Huanghe Road 116029 Dalian CHINA
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Qian C, Ma Y, Zhang Y, Yuan L, Zhang D, Zhao L, Luo J, Wang X. A multi-input/multi-output molecular system based on lanthanide(III) complexes. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00360k] [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
Developing multi-input/multi-output (MIMO) molecular systems for information processing is of great significance in the sophisticated human-made and natural processes. Herein, we present a novel design strategy of incorporating two azobenzene...
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Dasari S, Singh S, Abbas Z, Sivakumar S, Patra AK. Luminescent lanthanide(III) complexes of DTPA-bis(amido-phenyl-terpyridine) for bioimaging and phototherapeutic applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 256:119709. [PMID: 33823402 DOI: 10.1016/j.saa.2021.119709] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/31/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
We report here a series of coordinatively-saturated and thermodynamically stable luminescent [Ln(dtntp)(H2O)] [Ln(III) = Eu (1), Tb (2), Gd (3), Sm (4) and Dy (5)] complexes using an aminophenyl-terpyridine appended-DTPA (dtntp) chelating ligand as cell imaging and photocytotoxic agents. The N,N″-bisamide derivative of H5DTPA named as dtntp is based on 4'-(4-aminophenyl)-2,2':6',2″-terpyridine conjugated to diethylenetriamine-N,N',N″-pentaacetic acid. The structure, physicochemical properties, detailed photophysical aspects, interaction with DNA and serum proteins, and photocytotoxicity were studied. The intrinsic luminescence of Eu(III) and Tb(III) complexes due to f → f transitions used to evaluate their cellular uptake and distribution in cancer cells. The solid-state structure of [Eu(dtntp)(DMF)] (1·DMF) shows a discrete mononuclear molecule with nine-coordinated {EuN3O6} distorted tricapped-trigonal prism (TTP) coordination geometry around the Eu(III). The {EuN3O6} core results from three nitrogen atoms and three carboxylate oxygen atoms, and two carbonyl oxygen atoms of the amide groups of dtntp ligand. The ninth coordination site is occupied by an oxygen atom of DMF as a solvent from crystallization. The designed probes have two aromatic pendant phenyl-terpyridine (Ph-tpy) moieties as photo-sensitizing antennae to impart the desirable optical properties for cellular imaging and photocytotoxicity. The photostability, coordinative saturation, and energetically rightly poised triplet states of dtntp ligand allow the efficient energy transfer (ET) from Ph-tpy to the emissive excited states of the Eu(III)/Tb(III), makes them luminescent cellular imaging probes. The Ln(III) complexes show significant binding tendency to DNA (K ~ 104 M-1), and serum proteins (BSA and HSA) (K ~ 105 M-1). The luminescent Eu(III) (1) and Tb(III) (2) complexes were utilized for cellular internalization and cytotoxicity studies due to their optimal photophysical properties. The cellular uptake studies using fluorescence imaging displayed intracellular (cytosolic and nuclear) localization in cancer cells. The complexes 1 and 2 displayed significant photocytotoxicity in HeLa cells. These results offer a modular design strategy with further scope to utilize appended N,N,N-donor tpy moiety for developing light-responsive luminescent Ln(III) bioprobes for theranostic applications.
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Affiliation(s)
- Srikanth Dasari
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Swati Singh
- Department of Chemical Engineering and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Zafar Abbas
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Sri Sivakumar
- Department of Chemical Engineering and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Ashis K Patra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India.
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Rodrigues CV, Johnson KR, Lombardi VC, Rodrigues MO, Sobrinho JA, de Bettencourt-Dias A. Photocytotoxicity of Thiophene- and Bithiophene-Dipicolinato Luminescent Lanthanide Complexes. J Med Chem 2021; 64:7724-7734. [PMID: 34018753 DOI: 10.1021/acs.jmedchem.0c01805] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
New thiophene-dipicolinato-based compounds, K2nTdpa (n = 1, 2), were isolated. Their anions are sensitizers of lanthanide ion (LnIII) luminescence and singlet oxygen generation (1O2). Emission in the visible and near-infrared regions was observed for the LnIII complexes with efficiencies (ϕLn) ϕEu = 33% and ϕYb = 0.31% for 1Tdpa2- and ϕYb = 0.07% for 2Tdpa2-. The latter does not sensitize EuIII emission. Fluorescence imaging of HeLa live cells incubated with K3[Eu(1Tdpa)3] indicates that the complex permeates the cell membrane and localizes in the mitochondria. All complexes generate 1O2 in solution with efficiencies (ϕO12) as high as 13 and 23% for the GdIII complexes of 1Tdpa2- and 2Tdpa2-, respectively. [Ln(nTdpa)3]3- (n = 1, 2) are phototoxic to HeLa cells when irradiated with UV light with IC50 values as low as 4.2 μM for [Gd(2Tdpa)3]3- and 91.8 μM for [Eu(1Tdpa)3]3-. Flow cytometric analyses indicate both apoptotic and necrotic cell death pathways.
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Affiliation(s)
- Carime V Rodrigues
- Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States.,Laboratório de Inorgânica e Materiais, Instituto de Química, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasilia 70910-900 DF, Brazil
| | - Katherine R Johnson
- Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Vincent C Lombardi
- Department of Microbiology and Immunology, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Marcelo O Rodrigues
- Laboratório de Inorgânica e Materiais, Instituto de Química, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasilia 70910-900 DF, Brazil
| | - Josiane A Sobrinho
- Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States
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Aramesh-Boroujeni Z, Aramesh N, Jahani S, Khorasani-Motlagh M, Kerman K, Noroozifar M. Experimental and computational interaction studies of terbium (III) and lanthanide (III) complexes containing 2,2'-bipyridine with bovine serum albumin and their in vitro anticancer and antimicrobial activities. J Biomol Struct Dyn 2020; 39:5105-5116. [PMID: 32672500 DOI: 10.1080/07391102.2020.1792988] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
To investigate the chemotherapeutic and pharmacokinetic aspects of two lanthanide complexes (Tb(III) and La(III) containing 2,2'-bipyridine ligand), in vitro binding studies were carried out with BSA by employing multiple biophysical methods and molecular modeling study. There are different techniques containing fluorescence, absorption spectroscopy and competitive experiments to determine the interaction mode between BSA and these complexes. These complexes efficiently quenched the BSA emission through a static procedure. The results showed that the terbium and lanthanum complexes exhibited a high propensity for BSA interaction via van der Waals force. Further, competitive examination and docking study showed that the interaction site of these complexes on BSA is site III. The results of docking calculations were in good agreement with experimental examinations. Also, the energy transfer from BSA to these complexes has happened with high possibility. Moreover, antimicrobial studies of different bacterial and fungi indicated its promising antibacterial activity. In vitro cytotoxicity of the Tb complex and La complex was carried out in MCF-7 and A-549 cell lines, which revealed significantly good activity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Zahra Aramesh-Boroujeni
- Department of Clinical Laboratory, AlZahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran.,Young Researchers and Elite Club, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Nahal Aramesh
- Department of Chemistry, Faculty of Sciences, Yasouj University, Yasuj, Iran
| | - Shohreh Jahani
- Non-Communicable Diseases Research Center (NCDRC), Bam University of Medical Sciences, Bam, Iran
| | | | - Kagan Kerman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON, Canada
| | - Meissam Noroozifar
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON, Canada
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Monteiro JHSK. Recent Advances in Luminescence Imaging of Biological Systems Using Lanthanide(III) Luminescent Complexes. Molecules 2020; 25:E2089. [PMID: 32365719 PMCID: PMC7248892 DOI: 10.3390/molecules25092089] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 12/15/2022] Open
Abstract
The use of luminescence in biological systems allows one to diagnose diseases and understand cellular processes. Molecular systems, particularly lanthanide(III) complexes, have emerged as an attractive system for application in cellular luminescence imaging due to their long emission lifetimes, high brightness, possibility of controlling the spectroscopic properties at the molecular level, and tailoring of the ligand structure that adds sensing and therapeutic capabilities. This review aims to provide a background in luminescence imaging and lanthanide spectroscopy and discuss selected examples from the recent literature on lanthanide(III) luminescent complexes in cellular luminescence imaging, published in the period 2016-2020. Finally, the challenges and future directions that are pointing for the development of compounds that are capable of executing multiple functions and the use of light in regions where tissues and cells have low absorption will be discussed.
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Kataoka T, Abe S, Tagaya M. Surface-Engineered Design of Efficient Luminescent Europium(III) Complex-Based Hydroxyapatite Nanocrystals for Rapid HeLa Cancer Cell Imaging. ACS APPLIED MATERIALS & INTERFACES 2019; 11:8915-8927. [PMID: 30730134 DOI: 10.1021/acsami.8b22740] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We synthesized hydroxyapatite nanocrystals under the existence of tris(2,2,6,6-tetramethyl-3,5-heptanedionato)europium(III) (EuTH) complex to form inorganic/organic hybrid nanocrystal (EHA). Then, the folic acid derivative (folate N-hydroxysuccinimidyl ester (FA-NHS)) as the targeting ligand for the HeLa cancer cells was immobilized on the EHA by the mediation of both 3-aminopropyltriethoxysilane and methyltriethoxysilane molecules. Here, we investigated the photofunctions based on the interfacial interactions between the FA-NHS and EHA nanohybrids for preparing the novel bioimaging nanomaterials. As a result, the photofunctions could be changed by the FA-NHS molecular occupancy on the EHA. When the molecular occupancy ratio to the EHA surfaces is at around 3-5%, the intense luminescence from the f-f transition of the Eu3+ ions as well as the charge transfer between the EuTH-FA-NHS was observed to exhibit higher quantum efficiency. Moreover, effective dispersibility in phosphate-buffered saline was confirmed with immobilizing the positively charged FA-NHS. The cytotoxicity against the HeLa cells was also evaluated to verify whether the nanohybrids can be the candidate for cell imaging. The affinity and noncytotoxicity between the FA-NHS-immobilized EHA nanohybrids and cells were monitored for 3 days. Red luminescence from the cells could be observed, and the labels with following the cellular shapes were achieved by an additional culture time of 1 h after injecting the FA-NHS-immobilized EHA nanohybrids to the spheres, indicating the rapid bioimaging process. Therefore, this is the first successful report to describe the synthesis of inorganic-organic nanohybrid systems for controlling the EuTH-FA-NHS interactions. The photofunction of the interfacial interactions was successfully designed to provide "efficient luminescent ability" as well as "rapid targeting to the cancer cells" in one particle.
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Affiliation(s)
- Takuya Kataoka
- Department of Materials Science and Technology , Nagaoka University of Technology , Kamitomioka 1603-1 , Nagaoka , Niigata 940-2188 , Japan
| | - Shigeaki Abe
- Graduate School of Dental Medicine , Hokkaido University , Sapporo 060-8586 , Japan
| | - Motohiro Tagaya
- Department of Materials Science and Technology , Nagaoka University of Technology , Kamitomioka 1603-1 , Nagaoka , Niigata 940-2188 , Japan
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