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Rao PA, Padhy H, Bandyopadhyay K, Rao AV, Ganta R, Bevara S, Singh BP, Kundrapu B, Saha S, Malla R, Mukkamala SB. Exploring the Gamma-Ray Enhanced NIR-Luminescence and Cytotoxic Potential of Lanthanide-Naphthalene Dicarboxylate based Metal-Organic Frameworks. J Fluoresc 2024:10.1007/s10895-024-03677-x. [PMID: 38530563 DOI: 10.1007/s10895-024-03677-x] [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: 01/19/2024] [Accepted: 03/14/2024] [Indexed: 03/28/2024]
Abstract
In this investigation, we explore the integration of lanthanides into Metal-Organic Frameworks (MOFs) to enable Near-Infrared (NIR) emission. Specifically, we focus on Lanthanide-Naphthalene Dicarboxylate based MOFs (Ln-MOFs), incorporating elements such as Praseodymium (Pr), Samarium (Sm), Dysprosium (Dy), and Erbium (Er). The synthesis of Ln-MOFs is achieved via the hydrothermal method. The structure, morphology, thermal stability, and luminescence properties of synthesized Ln-MOFs have been evaluated through different characterization techniques. Upon photoexcitation at 350 nm, Ln-MOFs show the emission in the Visible and NIR region. Further, the luminescence intensity of Ln-MOFs enhanced by 2-3 folds in the visible region and 6-8 folds in NIR region after exposing to Gamma irradiation at 150 kGy. Cytotoxic effect on the viability of MDA-MB 231 and MDA-MB 468 Triple negative breast cancer (TNBC) cells was evaluated by MTT assay. The results revealed that among all synthesized MOFs, Pr-MOF exhibited an aggressive cytotoxic effect. Additionally, analysis of phase-contrast microscopy data indicates that Pr-MOF induces alterations in the morphology of both MDA-MB 231 and MDA-MB 468 TNBC cells when compared to untreated controls. The findings in this study reveal the utilization of Ln-MOFs for studying cytotoxicity and highlight their ability to enhance near-infrared (NIR) emission when exposed to gamma radiation.
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Affiliation(s)
- Podilapu Atchutha Rao
- Department of Chemistry, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, AP, 530045, India
| | - Harihara Padhy
- Department of Chemistry, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, AP, 530045, India.
| | - Krishanu Bandyopadhyay
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Adapaka Venkateswara Rao
- Department of Chemistry, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, AP, 530045, India
| | - Ravikumar Ganta
- Department of Chemistry, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, AP, 530045, India
| | - Samatha Bevara
- Department of Chemistry, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, AP, 530045, India
| | - Bheeshma Pratap Singh
- Department of Physics, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, AP, 530045, India
| | - Bhavani Kundrapu
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, 530045, Andhra Pradesh, India
| | - Satyen Saha
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - RamaRao Malla
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, GITAM School of Science, GITAM (Deemed to be University), Visakhapatnam, 530045, Andhra Pradesh, India
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Chen Y, Zhang Y, Zhang J, Wang L. New near-infrared emissions and energy transfer in Er 3+ -doped MgAl layered double hydroxides. LUMINESCENCE 2020; 35:1125-1133. [PMID: 32488962 DOI: 10.1002/bio.3825] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 04/09/2020] [Accepted: 04/27/2020] [Indexed: 12/17/2022]
Abstract
A series of Er3+ -doped magnesium aluminium layered double hydroxides (Er3+ -doped, MgAl-LDHs) with different Mg2+ /(Al3+ +Er3+ ) molar ratios were synthesized using the hydrothermal method. Compositional and structural analyses suggest that the Er3+ -doped MgAl-LDHs kept a hexagonal structure while the Mg2+ /(Al3+ +Er3+ ) molar ratio was at 1.0-4.1. The downconverted emission spectra of the Er3+ -doped MgAl-LDHs showed a red emission at 650 nm and strong infrared emissions at 720, 780, and 850 nm. These infrared emissions were hardly observed in previous downconverted emission spectra of Er3+ -doped materials. In the analysis of the Er3+ energy levels and in relevant published literature, the energy transfer diagram for Er3+ -doped in MgAl-LDHs is described, and infrared emissions at 720, 780, and 850 nm may be attributed to 4 F7/2 →4 I13/2 , 2 H11/2 →4 I13/2 , and 4 S3/2 →4 I13/2 transitions of Er3+ , respectively. Er3+ -doped MgAl-LDHs could have potential application as marking and targeting agents in the processes for drug delivery in consideration of the strong near-infrared Er3+ emissions, as well as the special layered structure of MgAl-LDH.
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Affiliation(s)
- Yufeng Chen
- College of Chemistry, Nanchang University, Nanchang, 330031, China
| | - Yajiao Zhang
- College of Chemistry, Nanchang University, Nanchang, 330031, China
| | - Jiwan Zhang
- College of Chemistry, Nanchang University, Nanchang, 330031, China
| | - Li Wang
- College of Materials Science and Engineering, Nanchang University, Nanchang, 330031, China
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