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Paschoal DFS, Dos Santos HF. Intramolecular force field for carboxylate Pt(II)-complexes. Theor Chem Acc 2022. [DOI: 10.1007/s00214-022-02901-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Magnetic Amine-Functionalized UiO-66 for Oxaliplatin Delivery to Colon Cancer Cells: In Vitro Studies. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02158-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Delivery of oxaliplatin to colorectal cancer cells by folate-targeted UiO-66-NH 2. Toxicol Appl Pharmacol 2021; 423:115573. [PMID: 33991535 DOI: 10.1016/j.taap.2021.115573] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 03/21/2021] [Accepted: 05/10/2021] [Indexed: 12/11/2022]
Abstract
Oxaliplatin is being used in different malignancies and several side effects are reported for patients taking Oxaliplatin, including peripheral neuropathy, nausea and vomiting, diarrhea, mouth sores, low blood counts, fatigue, loss of appetite, etc. Here we have developed a targeted anticancer drug delivery system based on folate-conjugated amine-functionalized UiO-66 for the delivery of oxaliplatin (OX). UiO-66-NH2 (U) and UiO-66-NH2-FA(FU) were pre-functionalized by the incorporation of folic acid (FA) into the structure via coordination of the carboxylate group of FA. The FTIR spectra of drug-loaded U and FU showed the presence of new carboxylic and aliphatic groups of OX and FA. Powder X-ray diffraction (PXRD) patterns were matched accordingly with the reference pattern and FESEM results showed semi-spherical particles (115-128 nm). The evaluated amounts of OX in U and FU were calculated 304.5 and 293 mg/g, respectively. The initial burst release of OX was 15.7% per hour for U(OX) and 10.8% per hour for FU(OX). The final release plateau gives 62.9% and 52.3% for U(OX) and FU(OX). To evaluate the application of the prepared delivery platform, they were tested on colorectal cancer cells (CT-26) via MTT assay, cell migration assay, and spheroid model. IC50 values obtained from MTT assay were 21.38, 95.50, and 18.20 μg/mL for OX, U(OX), and FU(OX), respectively. After three days of treatment, the CT26 spheroids at two doses of 500 and 50 μg/mL of U(OX) and FU(OX) showed volume reduction. Moreover, the oxidative behavior of the prepared systems within the cell was assessed by total thiol, malondialdehyde, and superoxide dismutase activity. The results showed that FU(OX) had higher efficacy in preventing the growth of CT-26 spheroid, and was more effective than oxaliplation in cell migration inhibition, and induced higher oxidative stress and apoptosis.
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Jabbar ML, Kadhim KJ. Electronic Properties of Doped Graphene Nanoribbon and the Electron Distribution Contours: A DFT Study. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2021. [DOI: 10.1134/s1990793121010188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Savicki C, Camargo NHA, Gemelli E. Crystallization of carboplatin-loaded onto microporous calcium phosphate using high-vacuum method: Characterization and release study. PLoS One 2020; 15:e0242565. [PMID: 33290399 PMCID: PMC7723252 DOI: 10.1371/journal.pone.0242565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 11/05/2020] [Indexed: 11/18/2022] Open
Abstract
Drug delivery systems are a new approach to increase therapeutic efficacy and to reduce the side effects of traditional treatments. Calcium phosphates (CaPs) have been studied as drug delivery systems, especially in bone diseases. However, each system has some particularities that depend on the physical and chemical characteristics of the biomaterials and drug interaction. In this work, granulated CaPs were used as a matrix for loading the anticancer drug carboplatin using the high-vacuum method. Five compositions were applied: hydroxyapatite (HA), β-tricalcium phosphate (β-TCP), biphasic HAp 60%/β-TCP 40% (BCP), β-TCP/MgO nanocomposite, and β-TCP/SiO2 nanocomposite. Carboplatin drug in 50, 60, and 70 mg/g was precipitated on the surface of CaPs. Morphological, chemical and surface modifications in the carboplatin-CaPs were investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), backscattered electron microscopy (BSE), X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), Fourier transform infrared (FT-IR), and Raman spectroscopy. The characterization of the CaP-carboplatin biomaterials showed heterogeneous crystalline precipitation of the drug, and no morphological modifications of the CaPs biomaterials. The in vitro release profile of carboplatin from CaPs was evaluated by the ultraviolet-visible (UV-Vis) method. The curves showed a burst release of upon 60% of carboplatin loaded followed by a slow-release of the drug for the time of the study. The results were typical of a low-interaction system and physisorption mechanism. The high-vacuum method permitted to load the high amount of carboplatin drug on the surface of the biomaterials despite the low interaction between carboplatin and CaPs.
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Affiliation(s)
- Cristiane Savicki
- Department of Mechanical Engineering, College of Technological Science, Santa Catarina State University, Joinville, Santa Catarina, Brazil
- * E-mail:
| | - Nelson Heriberto Almeida Camargo
- Department of Mechanical Engineering, College of Technological Science, Santa Catarina State University, Joinville, Santa Catarina, Brazil
| | - Enori Gemelli
- Department of Mechanical Engineering, College of Technological Science, Santa Catarina State University, Joinville, Santa Catarina, Brazil
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Ferreira BL, Martel F, Silva C, Santos T, Daniel-da-Silva A. Nanostructured functionalized magnetic platforms for the sustained delivery of cisplatin: Synthesis, characterization and in vitro cytotoxicity evaluation. J Inorg Biochem 2020; 213:111258. [DOI: 10.1016/j.jinorgbio.2020.111258] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 09/11/2020] [Accepted: 09/21/2020] [Indexed: 01/09/2023]
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Salado-Leza D, Porcel E, Yang X, Štefančíková L, Bolsa-Ferruz M, Savina F, Dragoe D, Guerquin-Kern JL, Wu TD, Hirayama R, Remita H, Lacombe S. Green One-Step Synthesis of Medical Nanoagents for Advanced Radiation Therapy. Nanotechnol Sci Appl 2020; 13:61-76. [PMID: 32848371 PMCID: PMC7426062 DOI: 10.2147/nsa.s257392] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 06/30/2020] [Indexed: 01/02/2023] Open
Abstract
PURPOSE Metal-based nanoparticles (M-NPs) have attracted great attention in nanomedicine due to their capacity to amplify and improve the tumor targeting of medical beams. However, their simple, efficient, high-yield and reproducible production remains a challenge. Currently, M-NPs are mainly synthesized by chemical methods or radiolysis using toxic reactants. The waste of time, loss of material and potential environmental hazards are major limitations. MATERIALS AND METHODS This work proposes a simple, fast and green strategy to synthesize small, non-toxic and stable NPs in water with a 100% production rate. Ionizing radiation is used to simultaneously synthesize and sterilize the containing NPs solutions. The synthesis of platinum nanoparticles (Pt NPs) coated with biocompatible poly(ethylene glycol) ligands (PEG) is presented as proof of concept. The physicochemical properties of NPs were studied by complementary specialized techniques. Their toxicity and radio-enhancing properties were evaluated in a cancerous in vitro model. Using plasmid nanoprobes, we investigated the elementary mechanisms underpinning radio-enhancement. RESULTS AND DISCUSSION Pt NPs showed nearly spherical-like shapes and an average hydrodynamic diameter of 9 nm. NPs are zero-valent platinum successfully coated with PEG. They were found non-toxic and have the singular property of amplifying cell killing induced by γ-rays (14%) and even more, the effects of carbon ions (44%) used in particle therapy. They induce nanosized-molecular damage, which is a major finding to potentially implement this protocol in treatment planning simulations. CONCLUSION This new eco-friendly, fast and simple proposed method opens a new era of engineering water-soluble biocompatible NPs and boosts the development of NP-aided radiation therapies.
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Affiliation(s)
- Daniela Salado-Leza
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
- Cátedra CONACyT, Faculty of Chemical Sciences, Autonomous University of San Luis Potosí, 78210 San Luis Potosí, Mexico
| | - Erika Porcel
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Xiaomin Yang
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Lenka Štefančíková
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Marta Bolsa-Ferruz
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Farah Savina
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
| | - Diana Dragoe
- Université Paris Saclay, CNRS UMR 8182, Institut de Chimie Moléculaire et des Matériaux d’Orsay, 91405 Orsay, France
| | - Jean-Luc Guerquin-Kern
- Paris-Saclay University, Multimodal Imaging Center (UMS 2016/US 43) CNRS, INSERM, Institut Curie, 91405 Orsay, France
| | - Ting-Di Wu
- Paris-Saclay University, Multimodal Imaging Center (UMS 2016/US 43) CNRS, INSERM, Institut Curie, 91405 Orsay, France
| | - Ryoichi Hirayama
- Department of Charged Particle Therapy Research, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, 263-8555 Chiba, Japan
| | - Hynd Remita
- Université Paris Saclay, CNRS UMR 8000, Institut de Chimie Physique, 91405 Orsay, France
| | - Sandrine Lacombe
- Université Paris Saclay, CNRS UMR 8214, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France
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8
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Gwee EH, Seeger ZL, Appadoo DRT, Wood BR, Izgorodina EI. Influence of DFT Functionals and Solvation Models on the Prediction of Far-Infrared Spectra of Pt-Based Anticancer Drugs: Why Do Different Complexes Require Different Levels of Theory? ACS OMEGA 2019; 4:5254-5269. [PMID: 31459697 PMCID: PMC6649127 DOI: 10.1021/acsomega.8b03455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 02/25/2019] [Indexed: 05/06/2023]
Abstract
Computational modeling was applied to far-infrared (FIR) spectra of Pt-based anticancer drugs to study the hydrolysis of these important molecules. Here, we present a study that investigates the influence of different factors-basis sets on non-Pt atoms, relativistic effective core potentials (RECPs) on the Pt atom, density functional theory (DFT) functionals, and solvation models-on the prediction of FIR spectra of two Pt-based anticancer drugs, cisplatin and carboplatin. Geometry optimizations and frequency calculations were performed with a range of functionals (PBE, PBE0, M06-L, and M06-2X), Dunning's correlation-consisted basis sets (VDZ, VTZ, aVDZ, and aVTZ), RECPs (VDZ-pp, VTZ-pp, aVDZ-pp, and aVTZ-pp), and solvation models (IEFPCM, CPCM, and SMD). The best combination of the basis set/DFT functional/solvation model was identified for each anticancer drug by comparing with experimentally available FIR spectra. Different combinations were established for cisplatin and carboplatin, which was rationalized by means of the partial atomic charge scheme, ChelpG, that was utilized to study the charge transfer between the Pt ion and ligands in both cisplatin and carboplatin.
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Affiliation(s)
- Eunice
S. H. Gwee
- Monash
Computational Chemistry Group, School of Chemistry and Centre for Biospectroscopy,
School of Chemistry, Monash University, 17 Rainforest Walk, Clayton, Victoria 3800, Australia
| | - Zoe L. Seeger
- Monash
Computational Chemistry Group, School of Chemistry and Centre for Biospectroscopy,
School of Chemistry, Monash University, 17 Rainforest Walk, Clayton, Victoria 3800, Australia
| | | | - Bayden R. Wood
- Monash
Computational Chemistry Group, School of Chemistry and Centre for Biospectroscopy,
School of Chemistry, Monash University, 17 Rainforest Walk, Clayton, Victoria 3800, Australia
| | - Ekaterina I. Izgorodina
- Monash
Computational Chemistry Group, School of Chemistry and Centre for Biospectroscopy,
School of Chemistry, Monash University, 17 Rainforest Walk, Clayton, Victoria 3800, Australia
- E-mail:
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9
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Shahabadi N, Amiri S, Taherpour A(A. Human serum albumin binding studies of a new platinum(IV) complex containing the drug pregabalin: experimental and computational methods. J COORD CHEM 2019. [DOI: 10.1080/00958972.2019.1568419] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Nahid Shahabadi
- Department of Chemistry, Faculty of Science, Razi University, Kermanshah, Iran
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sara Amiri
- Department of Chemistry, Faculty of Science, Razi University, Kermanshah, Iran
| | - Avat (Arman) Taherpour
- Medical Biology Research Center (MBRC), Kermanshah University of Medical Sciences, Kermanshah, Iran
- Organic Chemistry Department, Chemistry Faculty, Razi University, Kermanshah, Iran
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10
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Torres M, Khan S, Duplanty M, Lozano HC, Morris TJ, Nguyen T, Rostovtsev YV, DeYonker NJ, Mirsaleh-Kohan N. Raman and Infrared Studies of Platinum-Based Drugs: Cisplatin, Carboplatin, Oxaliplatin, Nedaplatin, and Heptaplatin. J Phys Chem A 2018; 122:6934-6952. [PMID: 30071735 DOI: 10.1021/acs.jpca.8b04023] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Marjorie Torres
- Department of Chemistry & Biochemistry, Texas Woman’s University, Denton, Texas 76204, United States
| | - Sidrah Khan
- Department of Chemistry & Biochemistry, Texas Woman’s University, Denton, Texas 76204, United States
| | - Michael Duplanty
- Department of Chemistry & Biochemistry, Texas Woman’s University, Denton, Texas 76204, United States
| | - Hannah C. Lozano
- Department of Chemistry, University of Memphis, Memphis, Tennessee 38152, United States
| | - Tyree J. Morris
- Department of Chemistry, University of Memphis, Memphis, Tennessee 38152, United States
| | - Trang Nguyen
- Department of Chemistry & Biochemistry, Texas Woman’s University, Denton, Texas 76204, United States
| | - Yuri V. Rostovtsev
- Center for Nonlinear Sciences and Department of Physics, University of North Texas, Denton, Texas 76203, United States
| | - Nathan J. DeYonker
- Department of Chemistry, University of Memphis, Memphis, Tennessee 38152, United States
| | - Nasrin Mirsaleh-Kohan
- Department of Chemistry & Biochemistry, Texas Woman’s University, Denton, Texas 76204, United States
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11
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Rezazadeh M, Ghiasi R, Jamehbozorgi S. Solvent Effects on the Structure And Spectroscopic Properties of the Second-Generation Anticancer Drug Carboplatin: A Theoretical Insight. J STRUCT CHEM+ 2018. [DOI: 10.1134/s0022476618010390] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Intratumoral injection of thermogelling and sustained-release carboplatin-loaded hydrogel simplifies the administration and remains the synergistic effect with radiotherapy for mice gliomas. Biomaterials 2018; 151:38-52. [DOI: 10.1016/j.biomaterials.2017.10.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/04/2017] [Accepted: 10/05/2017] [Indexed: 12/22/2022]
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13
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Surnar B, Sharma K, Jayakannan M. Core-shell polymer nanoparticles for prevention of GSH drug detoxification and cisplatin delivery to breast cancer cells. NANOSCALE 2015; 7:17964-79. [PMID: 26465291 DOI: 10.1039/c5nr04963f] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Platinum drug delivery against the detoxification of cytoplasmic thiols is urgently required for achieving efficacy in breast cancer treatment that is over expressed by glutathione (GSH, thiol-oligopeptide). GSH-resistant polymer-cisplatin core-shell nanoparticles were custom designed based on biodegradable carboxylic functional polycaprolactone (PCL)-block-poly(ethylene glycol) diblock copolymers. The core of the nanoparticle was fixed as 100 carboxylic units and the shell part was varied using various molecular weight poly(ethylene glycol) monomethyl ethers (MW of PEGs = 100-5000 g mol(-1)) as initiator in the ring-opening polymerization. The complexation of cisplatin aquo species with the diblocks produced core-shell nanoparticles of 75 nm core with precise size control the particles up to 190 nm. The core-shell nanoparticles were found to be stable in saline solution and PBS and they exhibited enhanced stability with increase in the PEG shell thickness at the periphery. The hydrophobic PCL layer on the periphery of the cisplatin core behaved as a protecting layer against the cytoplasmic thiol residues (GSH and cysteine) and exhibited <5% of drug detoxification. In vitro drug-release studies revealed that the core-shell nanoparticles were ruptured upon exposure to lysosomal enzymes like esterase at the intracellular compartments. Cytotoxicity studies were performed both in normal wild-type mouse embryonic fibroblast cells (Wt-MEFs), and breast cancer (MCF-7) and cervical cancer (HeLa) cell lines. Free cisplatin and polymer drug core-shell nanoparticles showed similar cytotoxicity effects in the HeLa cells. In MCF-7 cells, the free cisplatin drug exhibited 50% cell death whereas complete cell death (100%) was accomplished by the polymer-cisplatin core-shell nanoparticles. Confocal microscopic images confirmed that the core-shell nanoparticles were taken up by the MCF-7 and HeLa cells and they were accumulated both at the cytoplasm as well at peri-nuclear environments. The present investigation lays a new foundation for the polymer-based core-shell nanoparticles approach for overcoming detoxification in platinum drugs for the treatment of GSH over-expressed breast cancer cells.
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Affiliation(s)
- Bapurao Surnar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr. HomiBhabha Road, Pune 411008, Maharashtra, India.
| | - Kavita Sharma
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr. HomiBhabha Road, Pune 411008, Maharashtra, India.
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune, Dr. HomiBhabha Road, Pune 411008, Maharashtra, India.
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14
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Munaweera I, Shi Y, Koneru B, Saez R, Aliev A, Di Pasqua AJ, Balkus KJ. Chemoradiotherapeutic Magnetic Nanoparticles for Targeted Treatment of Nonsmall Cell Lung Cancer. Mol Pharm 2015; 12:3588-96. [PMID: 26325115 DOI: 10.1021/acs.molpharmaceut.5b00304] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Lung cancer is the leading cause of cancer-related death in the United States and approximately 85% of all lung cancers are classified as nonsmall cell (NSCLC). We here use an innovative approach that may ultimately allow for the clinician to target tumors and aggressively reduce tumor burden in patients with NSCLC. In this study, a platinum (Pt)-based chemotherapeutic (cisplatin, carboplatin, or oxaliplatin) and holmium-165 (Ho), which can be neutron-activated to produce the holmium-166 radionuclide, have been incorporated together in a garnet magnetic nanoparticle (HoIG-Pt) for selective delivery to tumors using an external magnet. The synthesized magnetic HoIG nanoparticles were characterized using PXRD, TEM, ICP-MS, and neutron-activation. Platinum(II) drugs were incorporated onto HoIG, and these were characterized using FTIR, EDX, ICP-MS, and zeta potential measurements, and in vitro and in vivo studies were performed using a HoIG-platinum system. Results indicate that neutron-activated (166)HoIG-cisplatin is more toxic toward NSCLC A549 cells than is blank (166)HoIG and free cisplatin, and that when an external magnetic field is applied in vivo, higher tumor to liver ratios of Ho are observed than when no magnet is applied, suggesting that magnetic targeting is achieved using this system. Furthermore, an efficacy study demonstrated the inhibition of tumor growth by chemoradiotherapeutic magnetic nanoparticles, compared to no treatment controls.
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Affiliation(s)
- Imalka Munaweera
- Department of Chemistry, University of Texas at Dallas , 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Yi Shi
- Depatment of Pharmaceutical Sciences, University of North Texas System College of Pharmacy, University of North Texas Health Science Center , 3500 Camp Bowie Boulevard, Fort Worth, Texas 76107, United States
| | - Bhuvaneswari Koneru
- Depatment of Pharmaceutical Sciences, University of North Texas System College of Pharmacy, University of North Texas Health Science Center , 3500 Camp Bowie Boulevard, Fort Worth, Texas 76107, United States
| | - Ruben Saez
- Texas Health Research and Education Institute , Plano, Texas 75093, United States
| | - Ali Aliev
- Department of Chemistry, University of Texas at Dallas , 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Anthony J Di Pasqua
- Depatment of Pharmaceutical Sciences, University of North Texas System College of Pharmacy, University of North Texas Health Science Center , 3500 Camp Bowie Boulevard, Fort Worth, Texas 76107, United States
| | - Kenneth J Balkus
- Department of Chemistry, University of Texas at Dallas , 800 West Campbell Road, Richardson, Texas 75080, United States
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15
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Liu K, Orimoto Y, Aoki Y. Theoretical investigation of the pressure-induced insulator-to-metal-to-insulator transitions in one-dimensional bis(dimethylglyoximato) platinum(II), Pt(dmg)2. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Ritacco I, Moustafa EM, Sicilia E, Russo N, Shoeib T. Fragmentation pathways analysis for the gas phase dissociation of protonated carnosine-oxaliplatin complexes. Dalton Trans 2015; 44:4455-67. [DOI: 10.1039/c4dt02217c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Collision-induced dissociation (CID) experiments on the protonated carnosine-oxaliplatin complex were shown to yield nine different fragment ions. Density functional calculations were employed to probe the fragmentation mechanisms that account for all experimental data.
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Affiliation(s)
- Ida Ritacco
- Dipartimento di Chimica UniVersita della Calabria
- Via P. Bucci
- cubo 14c
- 87036 Arca Vacata di Rende (CS)
- Centro di Calcolo ad Alte Prestazioni per Elaborazioni Parallele e Distribuite - Centro d'Eccellenza MIUR
| | - Eslam M. Moustafa
- Department of Chemistry
- The American University in Cairo
- New Cairo 11835
- Egypt
| | - Emilia Sicilia
- Dipartimento di Chimica UniVersita della Calabria
- Via P. Bucci
- cubo 14c
- 87036 Arca Vacata di Rende (CS)
- Centro di Calcolo ad Alte Prestazioni per Elaborazioni Parallele e Distribuite - Centro d'Eccellenza MIUR
| | - Nino Russo
- Dipartimento di Chimica UniVersita della Calabria
- Via P. Bucci
- cubo 14c
- 87036 Arca Vacata di Rende (CS)
- Centro di Calcolo ad Alte Prestazioni per Elaborazioni Parallele e Distribuite - Centro d'Eccellenza MIUR
| | - Tamer Shoeib
- Department of Chemistry
- The American University in Cairo
- New Cairo 11835
- Egypt
- Centre for Analytical Science
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17
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Carnosine complexes and binding energies to some biologically relevant metals and platinum containing anticancer drugs. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.05.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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18
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Malik M, Wysokiński R, Zierkiewicz W, Helios K, Michalska D. Raman and Infrared Spectroscopy, DFT Calculations, and Vibrational Assignment of the Anticancer Agent Picoplatin: Performance of Long-Range Corrected/Hybrid Functionals for a Platinum(II) Complex. J Phys Chem A 2014; 118:6922-34. [DOI: 10.1021/jp5056254] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Magdalena Malik
- Faculty of Chemistry, Wrocław University of Technology, Smoluchowskiego 23, 50-370 Wrocław, Poland
| | - Rafał Wysokiński
- Faculty of Chemistry, Wrocław University of Technology, Smoluchowskiego 23, 50-370 Wrocław, Poland
| | - Wiktor Zierkiewicz
- Faculty of Chemistry, Wrocław University of Technology, Smoluchowskiego 23, 50-370 Wrocław, Poland
| | - Katarzyna Helios
- Faculty of Chemistry, Wrocław University of Technology, Smoluchowskiego 23, 50-370 Wrocław, Poland
| | - Danuta Michalska
- Faculty of Chemistry, Wrocław University of Technology, Smoluchowskiego 23, 50-370 Wrocław, Poland
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19
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Malik M, Michalska D. Assessment of new DFT methods for predicting vibrational spectra and structure of cisplatin: which density functional should we choose for studying platinum(II) complexes? SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 125:431-9. [PMID: 24583852 DOI: 10.1016/j.saa.2014.01.107] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/13/2014] [Accepted: 01/22/2014] [Indexed: 05/10/2023]
Abstract
Ten different DFT methods, including several recently developed functionals have been tested for their performances in prediction of infrared and Raman spectra and molecular structure of cisplatin. The assessed DFT methods cover the range from meta-GGA to hybrid, double hybrid and long-range corrected hybrid models (M06-L, M06, M06-2X, PBE0, mPW1PW, B3LYP, B2PLYP, CAM-B3LYP, ωB97XD and LC-ωPBE). The calculated structural parameters and theoretical spectra have been compared to the corresponding experimental data. It is shown that the LC-ωPBE scheme is superior to other DFT methods in predicting the geometry of cisplatin. Unfortunately, the M06-L, M06-2X and B3LYP functionals are deficient in the evaluation of the strength of two Pt←NH3 coordination bonds in cisplatin (the calculated bond lengths are too long and the Pt-N stretching frequencies are underestimated). Both the PBE0 and mPW1PW functionals, in conjunction with the LanL2TZ(f) basis set for Pt give very similar theoretical results and seem to be the best methods for predicting the IR and Raman spectra of cisplatin. The long-range corrected functionals (LC-ωPBE, ωB97XD and CAM-B3LYP) have shown good performances in predicting the frequencies of Pt-ligand vibrations and are promising new tools for theoretical study of novel platinum(II) compounds.
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Affiliation(s)
- Magdalena Malik
- Faculty of Chemistry, Wrocław University of Technology, Smoluchowskiego 23, 50-370 Wrocław, Poland
| | - Danuta Michalska
- Faculty of Chemistry, Wrocław University of Technology, Smoluchowskiego 23, 50-370 Wrocław, Poland.
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Nasuhi Pur F, Dilmaghani KA. Calixplatin: novel potential anticancer agent based on the platinum complex with functionalized calixarene. J COORD CHEM 2014. [DOI: 10.1080/00958972.2014.890718] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Fazel Nasuhi Pur
- Faculty of Science, Department of Chemistry, Urmia University, Urmia, Iran
- Health Technology Incubator Center, Urmia University of Medical Science, Urmia, Iran
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Liu L, Gao H, Cui Z. Molecular structure and vibrational spectra studies on antipyrine derivative, 4-(2,3,4-trihydroxybenzylideneamino) antipyrine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 112:191-197. [PMID: 23666354 DOI: 10.1016/j.saa.2013.04.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Revised: 04/03/2013] [Accepted: 04/05/2013] [Indexed: 06/02/2023]
Abstract
The molecular geometry, theoretical harmonic frequencies and infrared intensities of 4-(2,3,4-trihydroxybenzylideneamino) antipyrine (THBAP) were calculated using different density functional methods (LSDA, mPW1PW91, B3LYP and HCTH) with various basic sets, including 3-21G, 6-311G, LanL2DZ, and SDD. The purpose of this research is to compare the performance of different density functional theory (DFT) methods at different basis sets in predicting geometry and vibration spectrum of THBAP. The optimized geometric band lengths and bond angles obtained by using mPW1PW91 at both LanL2DZ and SDD basic sets show the best agreement with the experimental data. A comparison between the observed fundamental vibrational frequencies of THBAP and the calculated results has been made and the result indicates that the mPW1PW91/6-311G level is superior to all the remaining levels for predicting all the vibration spectra on average for THBAP.
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Affiliation(s)
- Lekun Liu
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang 325035, China
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22
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Shoeib T, Sharp BL. Monomeric cisplatin complexes with glutathione: Coordination modes and binding affinities. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Platinum and Palladium Polyamine Complexes as Anticancer Agents: The Structural Factor. ACTA ACUST UNITED AC 2013. [DOI: 10.1155/2013/287353] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Since the introduction of cisplatin to oncology in 1978, Pt(II) and Pd(II) compounds have been intensively studied with a view to develop the improved anticancer agents. Polynuclear polyamine complexes, in particular, have attracted special attention, since they were found to yield DNA adducts not available to conventional drugs (through long-distance intra- and interstrand cross-links) and to often circumvent acquired cisplatin resistance. Moreover, the cytotoxic potency of these polyamine-bridged chelates is strictly regulated by their structural characteristics, which renders this series of compounds worth investigating and their synthesis being carefully tailored in order to develop third-generation drugs coupling an increased spectrum of activity to a lower toxicity. The present paper addresses the latest developments in the design of novel antitumor agents based on platinum and palladium, particularly polynuclear chelates with variable length aliphatic polyamines as bridging ligands, highlighting the close relationship between their structural preferences and cytotoxic ability. In particular, studies by vibrational spectroscopy techniques are emphasised, allowing to elucidate the structure-activity relationships (SARs) ruling anticancer activity.
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Vibrational Spectroscopy Investigation Using Ab Initio and Density Functional Theory Analysis on the Structure of tert-Butyl 3a-Chloroperhydro-2,6a-epoxyoxireno[ e]isoindole-5-carboxylate. J CHEM-NY 2013. [DOI: 10.1155/2013/124659] [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] Open
Abstract
The molecular structure, vibrational frequencies, and infrared intensities of thetert-butyl 3a-chloroperhydro-2,6a-epoxyoxireno[e]isoindole-5-carboxylate were calculated by the HF and DFT (BLYP and B3LYP) methods using 6-31G(d) and 6-31G(d,p) basis sets. The FT infrared spectrum of the solid sample was measured under standard condition. We obtained two stable conformers for the title compound; however Conformer 1 is approximately 0.2 kcal/mol more stable than the Conformer 2. The comparison of the theoretical and experimental geometry of the title compound shows that the X-ray parameters fairly well reproduce the geometry of Conformer 2. Comparison of the observed fundamental vibrational frequencies of the title molecule and calculated results by HF and DFT methods indicates that B3LYP is superior for molecular vibrational problems. The harmonic vibrations computed by the B3LYP/6-31G(d,p) method are in a good agreement with the observed IR spectral data. Theoretical vibrational spectra of the title compound were interpreted by means of potential energy distributions (PEDs) using VEDA 4 program.
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25
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Liu L, Gao H. Molecular structure and vibrational spectra of ibuprofen using density function theory calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 89:201-209. [PMID: 22261108 DOI: 10.1016/j.saa.2011.12.068] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2011] [Revised: 12/16/2011] [Accepted: 12/21/2011] [Indexed: 05/31/2023]
Abstract
The molecular geometry and the theoretical harmonic frequencies and infrared intensities of ibuprofen were calculated for all the molecules using five different density functional methods (mPW1PW91, B3PW91, B3LYP, HCTH and LSDA) with five basic sets, including 6-311G, 6-311++G, 6-311+G (d, p), 6-311++G (d, p) and 6-311++G (2d, 2p). The purpose of this research was to compare the performance of different DFT methods at different basis sets in predicting geometry and vibration spectrum of ibuprofen. The optimized geometric band lengths and bond angles obtained by using mPW1PW91 at 6-311++G (d, p) and 6-311++G (2d, 2p) basic sets show the best agreement with the experimental data. Comparison of the observed fundamental vibrational frequencies of ibuprofen with calculated results indicates that the B3PW91/6-311++G (2d, 2p) level is superior to all the remaining levels for predicting all the vibration spectra on average for ibuprofen.
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Affiliation(s)
- Lekun Liu
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang 325035, China
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Liu L, Gao H. Quantum chemistry study of molecular structure and vibrational spectrum of naproxen. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 86:131-138. [PMID: 22051411 DOI: 10.1016/j.saa.2011.10.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Revised: 09/24/2011] [Accepted: 10/08/2011] [Indexed: 05/31/2023]
Abstract
The purpose of this research was to compare the performance of different DFT methods at different basis sets in predicting geometry and vibrational spectrum of naproxen. The molecular structure and infrared spectrum of naproxen was studied. Quantum chemical calculations using density functional theory (DFT) with functions LSDA, B3LYP, B3PW91, BPV86, mPW1PW91 and PBEPBE at various basis set levels (LANL2DZ, SDD, 3-21G, 6-31G, 6-311G and STO-3G) were performed. The computed result indicates that LSDA/6-311G level is distinctly superior to all the remaining DFT methods in predicting molecular structure of naproxen. The vibrational spectral analysis indicates the LSDA/3-21G level and LSDA/6-311G level are both better than the other methods at all the remaining basis sets.
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Affiliation(s)
- Lekun Liu
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang 325035, China
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27
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Yang Y, Gao H. Comparison of DFT methods for molecular structure and vibration spectra of ofloxacin calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 85:303-309. [PMID: 22036003 DOI: 10.1016/j.saa.2011.10.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 10/01/2011] [Accepted: 10/08/2011] [Indexed: 05/31/2023]
Abstract
Comparison of the performance of different density functional theory (DFT) methods at various basis sets in predicting molecular and vibration spectra of ofloxacin was reported. The methods employed in this study comprise six functionals, namely, mPW1PW91, HCTH, LSDA, PBEPBE, B3PW91 and B3LYP. Different basis sets including LANL2DZ, SDD, LANL2MB, 6-31g, 6-311g and 3-21g were also examined. Comparison between the calculated and experimental data indicates that the mPW1PW91/6-311g level afford the best quality to predict the structure of ofloxacin. The results also indicate that B3LYP/LANL2DZ level show better performance in the vibration spectra prediction of ofloxacin than other DFT methods.
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Affiliation(s)
- Yue Yang
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang, 325035, China
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28
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Shoeib T, Sharp BL. Interactions of oxaliplatin with the cytoplasmic thiol containing ligand glutathione. Metallomics 2012; 4:1308-20. [DOI: 10.1039/c2mt20127e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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29
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Functionalization of microspheres with malonates using Michael Addition as a pathway to create a drug delivery system for platinum drugs for the treatment of liver cancer. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.10.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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30
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Gao H. Theoretical studies of molecular structures and properties of platinum (II) antitumor drugs. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:687-693. [PMID: 21543252 DOI: 10.1016/j.saa.2011.04.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 04/03/2011] [Accepted: 04/04/2011] [Indexed: 05/30/2023]
Abstract
The molecular structure and vibration spectra of carboplatin were investigated by the different density functional models (mPW1PW, BPV86, HCTH, PBEPBE, LSDA and PBE1PBE) using several basis sets including LANL2DZ, SDD, LANL2MB, CEP-4G, CEP-31G and CEP-121G. The results indicate that LSDA/SDD and LSDA/LANL2DZ levels are clearly superior to all the remaining density functional methods in predicting the structures of carboplatin. Mean absolute deviation between the calculated harmonic and observed fundamental vibration frequencies for each method indicates that PBE1PBE/CEP-121G and PBE1PBE/SDD methods are sufficient to predict vibration spectrum of carboplatin comparing with other DFT methods.
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Affiliation(s)
- Hongwei Gao
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang 325035, China.
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31
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Non-empirical quantum chemical studies on electron transfer reactions in trans- and cis-diamminedichloroplatinum(II) complexes. J Mol Model 2011; 17:2411-21. [PMID: 21559964 DOI: 10.1007/s00894-011-1060-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Accepted: 03/22/2011] [Indexed: 02/05/2023]
Abstract
The search was made for theoretical confirmation of hypothesis that mechanism of cisplatin cytotoxicity is based on dissociative electron transfer (ET) processes. Applying quantum chemical calculations based on supermolecular approach, the reactions mimicking presumed steps of cisplatin activation were evaluated. The electronic structure of model systems: cis- and transplatin with free electrons, hydrated electrons, and water, was studied by using density functional (DFT) within the Huzinaga basis set and GAUSSIAN-09 package. The respective energy was evaluated with the use of B3LYP density hybrid functional. The calculations were performed for gas phase and water solution; the solvent effects were studied by using the polarizable continuum model. Analysis of the energetic and structural parameters of cisplatin vs. transplatin behavior in the model systems leads to conclusion: there are two possible ways of cisplatin biotransformation, hydrolysis and hydrated electron impact, dependent on the medium redox state.
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32
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All-electron double zeta basis sets for platinum: Estimating scalar relativistic effects on platinum(II) anticancer drugs. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.theochem.2010.09.007] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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33
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Gao H, Wei X, Liu X, Huang C. DFT calculation of molecular structures and vibrational spectra of antitumor drugs: cis-[Pt(CH3CN)2Cl2]. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:461-465. [PMID: 20621551 DOI: 10.1016/j.saa.2010.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2010] [Revised: 06/06/2010] [Accepted: 06/11/2010] [Indexed: 05/29/2023]
Abstract
The molecular structure and vibrational frequencies of cis-[Pt(CH(3)CN)(2)Cl(2)] were calculated by five density functional theory (DFT) and HF methods using several basis sets. The theoretical results are discussed and compared with the experimental data. It is remarkable that mPW1PW91 and PBE1PBE methods at SDD basis sets are clearly superior to the remaining density functional methods in predicting the structures of cis-[Pt(CH(3)CN)(2)Cl(2)]. Mean deviation between the calculated harmonic and observed fundamental vibrational frequencies for each method is also calculated. The results indicate that mPW1PW91 and PBE1PBE methods at SDD basis sets are also the best to predict vibrational spectra of cis-[Pt(CH(3)CN)(2)Cl(2)].
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Affiliation(s)
- Hongwei Gao
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang 325035, China.
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34
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Gao H, Wei X, Liu X, Yan T. Comparison of Different Theory Models and Basis Sets in the Calculations of Structures and 13C NMR Spectra of [Pt(en)(CBDCA−O, O′)], an Analogue of the Antitumor Drug Carboplatin. J Phys Chem B 2010; 114:4056-62. [DOI: 10.1021/jp912005a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongwei Gao
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang, 325035, China
| | - Xiujuan Wei
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang, 325035, China
| | - Xuting Liu
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang, 325035, China
| | - Tingxia Yan
- Institute of Watershed Science and Environmental Ecology, Wenzhou Medical College, Zhejiang, 325035, China
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35
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QM/MM investigation into binding of square-planar platinum complexes to DNA fragments. J Biol Inorg Chem 2009; 14:1165-74. [DOI: 10.1007/s00775-009-0560-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2009] [Accepted: 06/10/2009] [Indexed: 12/31/2022]
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36
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Ali HRH, Edwards HGM, Kendrick J, Scowen IJ. Vibrational spectroscopic study of terbutaline hemisulphate. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:715-719. [PMID: 19124270 DOI: 10.1016/j.saa.2008.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2008] [Accepted: 11/08/2008] [Indexed: 05/27/2023]
Abstract
The Raman spectrum of terbutaline hemisulphate is reported for the first time, and molecular assignments are proposed on the basis of ab initio BLYP DFT calculations with a 6-31G* basis set and vibrational frequencies predicted within the quasi-harmonic approximation; these predictions compare favourably with the observed vibrational spectra. Comparison with previously published infrared data explains several spectral features. The results from this study provide data that can be used for the preparative process monitoring of terbutaline hemisulphate, an important beta(2) agonist drug in various dosage forms and its interaction with excipients and other components.
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Affiliation(s)
- H R H Ali
- Chemical & Forensic Sciences/University Analytical Centre, University of Bradford, UK
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37
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Arslan H, Mansuroglu DS, Vanderveer D, Binzet G. The molecular structure and vibrational spectra of N-(2,2-diphenylacetyl)-N'-(naphthalen-1yl)-thiourea by Hartree-Fock and density functional methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 72:561-571. [PMID: 19097820 DOI: 10.1016/j.saa.2008.10.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 10/23/2008] [Accepted: 10/28/2008] [Indexed: 05/27/2023]
Abstract
N-(2,2-Diphenylacetyl)-N'-(naphthalen-1yl)-thiourea (PANT) has been synthesized and characterized by elemental analysis, IR spectroscopy and (1)H NMR spectroscopy. The crystal and molecular structure of the title compound has been determined from single crystal X-ray diffraction data. It crystallizes in the triclinic space group P-1, Z=2 with a=10.284(2)A, b=10.790(2)A, c=11.305(2)A, alpha=64.92(3) degrees , beta=89.88(3) degrees , gamma=62.99(3) degrees , V=983.7(3)A(3) and D(calc)=1.339Mg/m(3). The molecular structure, vibrational frequencies and infrared intensities of PANT were calculated by the Hartree-Fock and density functional theory methods (BLYP and B3LYP) using the 6-31G* basis set. The calculated geometric parameters were compared to the corresponding X-ray structure of the title compound. We obtained 22 stable conformers for the title compound; however Conformer 1 is approximately 9.53kcal/mol more stable than Conformer 22. The comparison of the theoretical and experimental geometry of the title compound shows that the X-ray parameters fairly well reproduce the geometry of Conformer 17. The harmonic vibrations computed for this compound by the B3LYP/6-31G* method are in good agreement with the observed IR spectral data. Theoretical vibrational spectra of the title compound were interpreted by means of PEDs using the VEDA 4 program. A general better performance of the investigated methods was calculated by PAVF 1.0 program.
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Affiliation(s)
- Hakan Arslan
- Mersin University, Faculty of Pharmacy, Department of Chemistry, 33169 Mersin, Turkey.
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38
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Structural aspects of the anti-cancer drug oxaliplatin: A combined theoretical and experimental study. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.08.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Arslan H, Algül O. Vibrational spectrum and assignments of 2-(4-methoxyphenyl)-1H-benzo[d]imidazole by ab initio Hartree-Fock and density functional methods. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 70:109-16. [PMID: 17728175 DOI: 10.1016/j.saa.2007.07.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2007] [Revised: 06/28/2007] [Accepted: 07/12/2007] [Indexed: 05/17/2023]
Abstract
The room temperature attenuated total reflection Fourier transform infrared spectrum of the 2-(4-methoxyphenyl)-1H-benzo[d]imidazole has been recorded with diamond/ZnSe prism. The conformational behaviour, structural stability of optimized geometry, frequency and intensity of the vibrational bands of the title compound were investigated by utilizing ab initio calculations with 6-311G** basis set at HF, B3LYP, BLYP, B3PW91 and mPW1PW91 levels. The harmonic vibrational frequencies were calculated and scaled values have been compared with experimental IR spectrum. The observed and the calculated frequencies are found to be in good agreement. The theoretical vibrational spectra of the title compound were interpreted by means of potential energy distributions using VEDA 4 program. Furthermore, the optimal uniform scaling factors calculated for the title compound are 0.9120, 0.9596, 0.9660, 0.9699, and 0.9993 for HF, mPW1PW91, B3PW91, B3LYP and BLYP methods, respectively.
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Affiliation(s)
- Hakan Arslan
- Department of Chemistry, Faculty of Arts and Science, Mersin University, 33343-Mersin, Turkey.
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Aaltonen J, Gordon KC, Strachan CJ, Rades T. Perspectives in the use of spectroscopy to characterise pharmaceutical solids. Int J Pharm 2008; 364:159-69. [PMID: 18555625 DOI: 10.1016/j.ijpharm.2008.04.043] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2008] [Revised: 04/30/2008] [Accepted: 04/30/2008] [Indexed: 11/28/2022]
Abstract
Knowledge of the solid-state properties is one of the key issues in understanding the performance of drugs. Recent developments in spectroscopic techniques have made them popular tools for solid phase analysis; they are fast, accurate and suitable for real-time measurements during processing, and further, they can be used to obtain structural understanding of solid forms, for example, by the use of multivariate analysis and computational chemistry. In this article emerging topics related to spectroscopic analysis of pharmaceutical solids are reviewed. The following areas are highlighted: (1) the importance of multivariate methods in the analysis of solid forms when using spectroscopic techniques, (2) spectroscopic analysis of processing-induced solid phase transformations in the manufacturing setting, (3) novel spectroscopic techniques and pharmaceutical examples of their use, and (4) the advantages and the use of computational simulation of vibrational spectra. The topics listed are thought to be of the foremost importance in improving the understanding of pharmaceutical materials, processes and formulations.
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Dans PD, Crespo A, Estrin DA, Coitiño EL. Structural and Energetic Study of Cisplatin and Derivatives: Comparison of the Performance of Density Funtional Theory Implementations. J Chem Theory Comput 2008; 4:740-50. [DOI: 10.1021/ct7002385] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pablo D. Dans
- Laboratorio de Química Teórica y Computacional, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República (UdelaR), Centro Universitario Malvín Norte, Iguá 4225, Montevideo 11400, Uruguay, and Departamento de Química Inorgánica, Analítica y Química Física/IUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Buenos Aires (C1428EHA), Argentina
| | - Alejandro Crespo
- Laboratorio de Química Teórica y Computacional, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República (UdelaR), Centro Universitario Malvín Norte, Iguá 4225, Montevideo 11400, Uruguay, and Departamento de Química Inorgánica, Analítica y Química Física/IUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Buenos Aires (C1428EHA), Argentina
| | - Darío A. Estrin
- Laboratorio de Química Teórica y Computacional, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República (UdelaR), Centro Universitario Malvín Norte, Iguá 4225, Montevideo 11400, Uruguay, and Departamento de Química Inorgánica, Analítica y Química Física/IUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Buenos Aires (C1428EHA), Argentina
| | - E. Laura Coitiño
- Laboratorio de Química Teórica y Computacional, Instituto de Química Biológica, Facultad de Ciencias, Universidad de la República (UdelaR), Centro Universitario Malvín Norte, Iguá 4225, Montevideo 11400, Uruguay, and Departamento de Química Inorgánica, Analítica y Química Física/IUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Buenos Aires (C1428EHA), Argentina
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The Molecular Structure and Vibrational Spectrum of 6-bromo-8-thia-1,4-epoxybicyclo[4.3.0]non-2-ene. Int J Mol Sci 2007. [DOI: 10.3390/i8111064] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Wysokiński R, Hernik K, Szostak R, Michalska D. Electronic structure and vibrational spectra of cis-diammine(orotato)platinum(II), a potential cisplatin analogue: DFT and experimental study. Chem Phys 2007. [DOI: 10.1016/j.chemphys.2007.01.002] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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