1
|
Ferrando R, Mitchell SG, Atrián-Blasco E, Cerrada E. Antibacterial properties of phosphine gold(I) complexes with 5-fluorouracil. Dalton Trans 2023. [PMID: 37448318 DOI: 10.1039/d3dt01159c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
New gold(I) complexes with coordination to 5-fluorouracil (5-FU), an anticancer drug with antibacterial properties, have been synthesised and characterised, and are the first reported examples of 5-FU-Au compounds. These new complexes show high solution stability, even in the presence of a cysteine derivative, and so were evaluated as antibacterial compounds against model Gram-positive and Gram-negative bacteria. All the complexes show excellent antibacterial activity against Gram-positive B. subtilis, most of them improving the activity of 5-FU alone. Furthermore, these new complexes are also active against Gram-negative E. coli, where [Au(5-FU)(PTA)], the complex with the smallest phosphane, is the most bactericidal, 32 times more active than 5-FU on its own.
Collapse
Affiliation(s)
- Ricardo Ferrando
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain.
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Scott G Mitchell
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Elena Atrián-Blasco
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
| | - Elena Cerrada
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain.
| |
Collapse
|
2
|
Chen S, Ge M, Weng S, Li J, Huang Y, Li P, Yang L. Development of a MoS 2/Ag NP Nanopocket to Trap Target Molecules for Surface-Enhanced Raman Scattering Detection with Long-Term Stability and High Sensitivity. Anal Chem 2023. [PMID: 37329306 DOI: 10.1021/acs.analchem.3c00665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Surface-enhanced Raman scattering (SERS) substrates mostly achieve highly sensitive detection by designing various hot spots; however, how to guide molecules to hot spots and prevent them from leaving has not been thoroughly considered and studied. Here, a composite MoS2/Ag NP nanopocket detector composed of MoS2 covered with a Ag NP film was fabricated to develop a general SERS method for actively capturing target molecules into hotspots. A finite element method (FEM) simulation of the multiphysics model was used to analyze the distributions of electric field enhancements and hydrodynamic processes in solution and air of the MoS2/Ag NP nanopocket. The results revealed that covering MoS2 slowed the evaporation of the solution, extended the window period for SERS detection, and enhanced the electric field in comparison with the monolayer Ag NP film. Therefore, in the process of dynamic detection, the MoS2/Ag NP nanopocket can provide an efficient and stable signal within 8 min, increasing the high sensitivity and long-term stability of the SERS method. Furthermore, a MoS2/Ag NP nanopocket detector was applied to detect antitumor drugs and monitor hypoxanthine structural changes in serum, which demonstrated long-term stability and high sensitivity for SERS analysis. This MoS2/Ag NP nanopocket detector paves the way for developing the SERS method in various fields.
Collapse
Affiliation(s)
- Siyu Chen
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science & Technology of China, Anhui, Hefei 230026, China
| | - Meihong Ge
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science & Technology of China, Anhui, Hefei 230026, China
| | - Shirui Weng
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Junxiang Li
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science & Technology of China, Anhui, Hefei 230026, China
| | - Yanheng Huang
- School of First Clinical Medicine, Anhui Medical University, Hefei, Anhui 230032, China
| | - Pan Li
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Liangbao Yang
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, Anhui, China
| |
Collapse
|
3
|
Lazar G, Nekvapil F, Glamuzina B, Tamaș T, Barbu-Tudoran L, Suciu M, Cinta Pinzaru S. pH-Dependent Behavior of Novel 5-FU Delivery System in Environmental Conditions Comparable to the Gastro-Intestinal Tract. Pharmaceutics 2023; 15:pharmaceutics15031011. [PMID: 36986870 PMCID: PMC10056423 DOI: 10.3390/pharmaceutics15031011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/05/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
A biogenic carrier for 5-fluorouracil (5-FU) loading and subsequent tableting as a new drug formulation for slow release has been proposed using the biomineral from blue crab carapace. Due to its highly ordered 3D porous nanoarchitecture, the biogenic carbonate carrier could achieve increased effectiveness in colorectal cancer cure provided that the formulation would successfully pass through the gastric acid conditions. Following the recently proven viability of the concept by demonstrating the slow release of the drug from the carrier using the highly sensitive SERS technique, here we investigated the 5-FU release from the composite tablet drug in pH conditions replicating the gastric environment. The released drug from the tablet was studied in solutions with three relevant pH values, pH 2, pH 3, and pH 4. The 5-FU SERS spectral signature for each pH value was used to build calibration curves for quantitative SERS analysis. The results suggested a similarly slow-releasing pattern in acid pH environments to that in neutral conditions. Although biogenic calcite dissolution was expected in acid conditions, the X-ray diffraction and Raman spectroscopy showed preservation of calcite mineral along with the monohydrocalcite during acid solution exposure for two hours. The total released amount in a time course of seven hours, however, was lower in acidic pH solutions, with a maximum fraction of ~40% of the total amount of loaded drug, for pH 2, as opposed to ~80% for neutral values. Nonetheless, these results clearly prove that the novel composite drug retains its slow-releasing character in environmental conditions compatible with the gastrointestinal pH and that it is a viable and biocompatible alternative for oral delivery of anticancer drug to reach the lower gastro-intestinal tract.
Collapse
Affiliation(s)
- Geza Lazar
- Biomolecular Physics Department, Faculty of Physics, Babes Bolyai University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania
- Institute for Research, Development and Innovation in Applied Natural Science, Fântânele 30, 400327 Cluj-Napoca, Romania
| | - Fran Nekvapil
- Biomolecular Physics Department, Faculty of Physics, Babes Bolyai University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania
- Institute for Research, Development and Innovation in Applied Natural Science, Fântânele 30, 400327 Cluj-Napoca, Romania
| | - Branko Glamuzina
- Department of Applied Ecology, University of Dubrovnik, Ćira Carića 4, 20 000 Dubrovnik, Croatia
| | - Tudor Tamaș
- Department of Geology, Babeş-Bolyai University, 1 Kogălniceanu, 400084 Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- Electron Microscopy Centre, Babeș-Bolyai University, Clinicilor 5-7, 400006 Cluj-Napoca, Romania
- Advanced Research and Technology Center for Alternative Energy, National Institute for Research and Development of Isotopic and Molecular Technologies, Donat 67-103, 400293 Cluj-Napoca, Romania
| | - Maria Suciu
- Advanced Research and Technology Center for Alternative Energy, National Institute for Research and Development of Isotopic and Molecular Technologies, Donat 67-103, 400293 Cluj-Napoca, Romania
| | - Simona Cinta Pinzaru
- Biomolecular Physics Department, Faculty of Physics, Babes Bolyai University, Kogalniceanu 1, 400084 Cluj-Napoca, Romania
- Institute for Research, Development and Innovation in Applied Natural Science, Fântânele 30, 400327 Cluj-Napoca, Romania
| |
Collapse
|
4
|
Ebrahimian J, Khayatkashani M, Soltani N, Mohammed HT, Tavakkoli N, Jafari M, Salavati-Niasari M. Rosa Damascena mediated ZnO-Red Ochre nanocomposite for the electrochemical determination of 5-Fluorouracil. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
|
5
|
Abdel Aal S. DFT study of the therapeutic potential of borospherene and metalloborospherenes as a new drug-delivery system for the 5-fluorouracil anticancer drug. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
6
|
Pezzotti G, Kobara M, Nakaya T, Imamura H, Asai T, Miyamoto N, Adachi T, Yamamoto T, Kanamura N, Ohgitani E, Marin E, Zhu W, Nishimura I, Mazda O, Nakata T, Makimura K. Raman Study of Pathogenic Candida auris: Imaging Metabolic Machineries in Reaction to Antifungal Drugs. Front Microbiol 2022; 13:896359. [PMID: 35694304 PMCID: PMC9175029 DOI: 10.3389/fmicb.2022.896359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/25/2022] [Indexed: 12/02/2022] Open
Abstract
The multidrug-resistant Candida auris often defies treatments and presently represents a worldwide public health threat. Currently, the ergosterol-targeting Amphotericin B (AmB) and the DNA/RNA-synthesis inhibitor 5-flucytosine (5-FC) are the two main drugs available for first-line defense against life-threatening Candida auris infections. However, important aspects of their mechanisms of action require further clarification, especially regarding metabolic reactions of yeast cells. Here, we applied Raman spectroscopy empowered with specifically tailored machine-learning algorithms to monitor and to image in situ the susceptibility of two Candida auris clades to different antifungal drugs (LSEM 0643 or JCM15448T, belonging to the East Asian Clade II; and, LSEM 3673 belonging to the South African Clade III). Raman characterizations provided new details on the mechanisms of action against Candida auris Clades II and III, while also unfolding differences in their metabolic reactions to different drugs. AmB treatment induced biofilm formation in both clades, but the formed biofilms showed different structures: a dense and continuous biofilm structure in Clade II, and an extra-cellular matrix with a “fluffy” and discontinuous structure in Clade III. Treatment with 5-FC caused no biofilm formation but yeast-to-hyphal or pseudo-hyphal morphogenesis in both clades. Clade III showed a superior capacity in reducing membrane permeability to the drug through chemically tailoring chitin structure with a high degree of acetylation and fatty acids networks with significantly elongated chains. This study shows the suitability of the in situ Raman method in characterizing susceptibility and stress response of different C. auris clades to antifungal drugs, thus opening a path to identifying novel clinical solutions counteracting the spread of these alarming pathogens.
Collapse
Affiliation(s)
- Giuseppe Pezzotti
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Kyoto, Japan
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- Department of Orthopedic Surgery, Tokyo Medical University, Tokyo, Japan
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
- The Center for Advanced Medical Engineering and Informatics, Osaka University, Osaka, Japan
- *Correspondence: Giuseppe Pezzotti
| | - Miyuki Kobara
- Division of Pathological Science, Department of Clinical Pharmacology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Tamaki Nakaya
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Kyoto, Japan
| | - Hayata Imamura
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Kyoto, Japan
| | - Tenma Asai
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Kyoto, Japan
| | - Nao Miyamoto
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsuya Adachi
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshiro Yamamoto
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Narisato Kanamura
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Eriko Ohgitani
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Elia Marin
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Kyoto, Japan
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Wenliang Zhu
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Kyoto, Japan
| | - Ichiro Nishimura
- Division of Advanced Prosthodontics, The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, CA, United States
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tetsuo Nakata
- Division of Pathological Science, Department of Clinical Pharmacology, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Koichi Makimura
- Medical Mycology, Graduate School of Medicine, Teikyo University, Tokyo, Japan
| |
Collapse
|
7
|
Harroun SG, Zhang Y, Lin YS, Chang HT. Surface-enhanced Raman spectroscopy and density functional theory study of thymine-1-acetic acid interaction with silver nanoparticles. CAN J CHEM 2022. [DOI: 10.1139/cjc-2021-0085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Thymine-1-acetic acid (TAA) is a modified nucleobase often used to add thymine functionality to materials. This study reports the Raman band assignments for TAA by comparing its experimental and density functional theory (DFT) simulated Raman spectra. Further comparison of experimental surface-enhanced Raman spectroscopy (SERS) of TAA on silver nanoparticles (Ag NPs) with simulated spectra of various complexes of xAg+ (x = 1, 2, or 3) and TAA reveals its likely adsorption orientation on the Ag NPs. This is one of the few studies that has achieved reasonably accurate simulation of SERS by employing multiple unconnected Ag+ ions, which could represent a compromise between a single atom or ion on one hand and a computationally expensive cluster on the other.
Collapse
Affiliation(s)
- Scott G. Harroun
- Département de chimie, Université de Montréal, Montreal, QC H3C 3J7, Canada
| | - Yaoting Zhang
- Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Yu-Syuan Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| |
Collapse
|
8
|
Lazar G, Nekvapil F, Hirian R, Glamuzina B, Tamas T, Barbu-Tudoran L, Pinzaru SC. Novel Drug Carrier: 5-Fluorouracil Formulation in Nanoporous Biogenic Mg-calcite from Blue Crab Shells-Proof of Concept. ACS OMEGA 2021; 6:27781-27790. [PMID: 34722978 PMCID: PMC8552355 DOI: 10.1021/acsomega.1c03285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
The ever-growing demand for novel, cheaper, and more effective drugs has put nanomedicine and targeted drug delivery to the forefront of scientific innovation. Owing to its porous three-dimensional (3D)-nanostructure and properties, the biogenic calcite from wasted blue crab shells is employed in the present work as a new drug carrier for 5-fluorouracil (5-FU), a drug widely used in cancer therapy. The drug solution has been loaded in the porous nanoarchitecture of the powdered biogenic material and further pelleted in tablets with a 5-FU concentration of 1.748 mg/g. Their structural and morphological properties were characterized using Raman, X-ray diffraction, and scanning electron microscopy. Confocal micro-Raman spectra of tablet surface showed a typical signal of biogenic carbonate with preserved carotenoids and carotenoproteins found in the native waste shell, while the drug Raman signal was absent, indicating its adsorption in the intricate nanoporous biogenic carrier. The slow release of the drug from the newly formulated tablet was investigated by tracking the surface-enhanced Raman scattering (SERS) signal of the tablet solution in a series of time-dependent experiments. The SERS signal quantification is achieved using the well-known SERS spectral fingerprint of 5-fluorouracil aqueous solution adsorbed on Ag nanoparticles. The proof of concept is demonstrated by quantifying the slow release of the drug through the characteristic SERS band intensity of 5-FU in a time course of 26 h. This proof of concept boosted further investigations concerning the released drug identity in simulated solutions that mimic the pH of the upper- and lower gastrointestinal tract, as well as the multiple possibilities to control porosity and composition during powdering and treatment of biogenic material, to achieve the most convenient formulation for relevant biomedical drug delivery. Nonetheless, the present results showed great promise for innovative reusing waste biogenic 3D-nanomaterials of aquatic origin as advantageous drug carriers for slow release purposes, in line with the concept of blue bioeconomy.
Collapse
Affiliation(s)
- Geza Lazar
- Biomolecular
Physics Department, Babes Bolyai University, Kogalniceanu 1, RO-400084 Cluj-Napoca, Romania
- Institute
for Research, Development and Innovation in Applied Natural Science, Fântânele 30, 400327 Cluj-Napoca, Romania
| | - Fran Nekvapil
- Biomolecular
Physics Department, Babes Bolyai University, Kogalniceanu 1, RO-400084 Cluj-Napoca, Romania
- Institute
for Research, Development and Innovation in Applied Natural Science, Fântânele 30, 400327 Cluj-Napoca, Romania
| | - Razvan Hirian
- Babes
Bolyai University, Faculty of Physics, Kogalniceanu 1, RO-400084 Cluj-Napoca, Romania
| | - Branko Glamuzina
- Department
of Aquaculture, University of Dubrovnik, Ćira Carića 4, 20 000 Dubrovnik, Croatia
| | - Tudor Tamas
- Department
of Geology, Babeş-Bolyai University, Kogălniceanu 1, RO-400084 Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- Electron
Microscopy Centre, Babes;-Bolyai University, Clinicilor 5-7, 400006 Cluj-Napoca, Romania
- Advanced
Research and Technology Center for Alternative Energy, National Institute for Research and Development of
Isotopic and Molecular Technologies, Donat 67-103, 400293 Cluj-Napoca, Romania
| | - Simona Cinta Pinzaru
- Biomolecular
Physics Department, Babes Bolyai University, Kogalniceanu 1, RO-400084 Cluj-Napoca, Romania
- Institute
for Research, Development and Innovation in Applied Natural Science, Fântânele 30, 400327 Cluj-Napoca, Romania
| |
Collapse
|
9
|
|
10
|
Ge M, Li P, Zhou G, Chen S, Han W, Qin F, Nie Y, Wang Y, Qin M, Huang G, Li S, Wang Y, Yang L, Tian Z. General Surface-Enhanced Raman Spectroscopy Method for Actively Capturing Target Molecules in Small Gaps. J Am Chem Soc 2021; 143:7769-7776. [PMID: 33988987 DOI: 10.1021/jacs.1c02169] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Over the past decade, many efforts have been devoted to designing and fabricating substrates for surface-enhanced Raman spectroscopy (SERS) with abundant hot spots to improve the sensitivity of detection. However, there have been many difficulties involved in causing molecules to enter hot spots actively or effectively. Here, we report a general SERS method for actively capturing target molecules in small gaps (hot spots) by constructing a nanocapillary pumping model. The ubiquity of hot spots and the inevitability of molecules entering them lights up all the hot spots and makes them effective. This general method can realize the highly sensitive detection of different types of molecules, including organic pollutants, drugs, poisons, toxins, pesticide residues, dyes, antibiotics, amino acids, antitumor drugs, explosives, and plasticizers. Additionally, in the dynamic detection process, an efficient and stable signal can be maintained for 1-2 min, which increases the practicality and operability of this method. Moreover, a dynamic detection process like this corresponds to the processes of material transformation in some organisms, so the method can be used to monitor transformation processes such as the death of a single cell caused by photothermal stimulation. Our method provides a novel pathway for generating hot spots that actively attract target molecules, and it can achieve general ultratrace detection of diverse substances and be applied to the study of cell behaviors in biological systems.
Collapse
Affiliation(s)
- Meihong Ge
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Pan Li
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Guoliang Zhou
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Siyu Chen
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Wei Han
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Feng Qin
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yuman Nie
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Yaoxiong Wang
- Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Miao Qin
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guangyao Huang
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Shaofei Li
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yongtao Wang
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,University of Science & Technology of China, Hefei, Anhui 230026, P. R. China
| | - Liangbao Yang
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China.,Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
| | - Zhongqun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, P. R. China
| |
Collapse
|
11
|
Padash R. Mechanism and kinetic investigations of 5-fluorouracil tautomeric conversions in the gas phase: DFT and CBS-QB3 methods using multichannel Rice–Ramsperger–Kassel–Marcus steady-state approximation theory. Theor Chem Acc 2020. [DOI: 10.1007/s00214-020-2574-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
12
|
Wielińska J, Nowacki A, Liberek B. 5-Fluorouracil-Complete Insight into Its Neutral and Ionised Forms. Molecules 2019; 24:molecules24203683. [PMID: 31614932 PMCID: PMC6832121 DOI: 10.3390/molecules24203683] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/06/2019] [Accepted: 10/11/2019] [Indexed: 11/16/2022] Open
Abstract
5-Fluorouracil (5FU), a common anti-cancer drug, occurs in four tautomeric forms and possesses two potential sites of both protonation and deprotonation. Tautomeric and resonance structures of the ionized forms of 5FU create the systems of connected equilibriums. Since there are contradictory reports on the ionized forms of 5FU in the literature, complex theoretical studies on neutral, protonated and deprotonated forms of 5FU, based on the broad spectrum of DFT methods, are presented. These indicate that the O4 oxygen is more willingly protonated than the O2 oxygen and the N1 nitrogen is more willingly deprotonated than the N3 nitrogen in a gas phase. Such preferences are due to advantageous charge delocalization of the respective ions, which is demonstrated by the NBO and ESP analyses. In an aqueous phase, stability differences between respective protonated and deprotonated forms of 5FU are significantly diminished due to the competition between the mesomeric effect and solvation. The calculated pKa values of the protonated, neutral and singly deprotonated 5FU indicate that 5FU does not exist in the protonated and double-deprotonated forms in the pH range of 0–14. The neutral form dominates below pH 8 and the N1 deprotonated form dominates above pH 8.
Collapse
Affiliation(s)
- Justyna Wielińska
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.
| | - Andrzej Nowacki
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.
| | - Beata Liberek
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland.
| |
Collapse
|
13
|
Zhang M, Xu J, Wang X. The theoretical investigation on the properties of fluorine-substituted uracil. COMPUT THEOR CHEM 2019. [DOI: 10.1016/j.comptc.2019.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
14
|
Chen C, Liu W, Tian S, Hong T. Novel Surface-Enhanced Raman Spectroscopy Techniques for DNA, Protein and Drug Detection. SENSORS 2019; 19:s19071712. [PMID: 30974797 PMCID: PMC6480126 DOI: 10.3390/s19071712] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/15/2019] [Accepted: 03/29/2019] [Indexed: 01/01/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a vibrational spectroscopic technique in which the Raman scattering signal strength of molecules, absorbed by rough metals or the surface of nanoparticles, experiences an exponential growth (10³-10⁶ times and even 1014-1015 times) because of electromagnetic or chemical enhancements. Nowadays, SERS has attracted tremendous attention in the field of analytical chemistry due to its specific advantages, including high selectivity, rich informative spectral properties, nondestructive testing, and the prominent multiplexing capabilities of Raman spectroscopy. In this review, we present the applications of state-of-the-art SERS for the detection of DNA, proteins and drugs. Moreover, we focus on highlighting the merits and mechanisms of achieving enhanced SERS signals for food safety and clinical treatment. The machine learning techniques, combined with SERS detection, are also indicated herein. This review concludes with recommendations for future studies on the development of SERS.
Collapse
Affiliation(s)
- Chuanpin Chen
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China.
| | - Wenfang Liu
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China.
| | - Sanping Tian
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China.
| | - Tingting Hong
- School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan, China.
| |
Collapse
|
15
|
Othmani H, Ben Said R, Terzi N, Jaidane NE, Mogren Al Mogren M, Elmarghany A, Hochlaf M. Structural, energetic and spectroscopic characterisation of 5-fluorouracil anticarcinogenic drug isomers, tautomers and ions. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1548715] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- H. Othmani
- Laboratoire de Modélisation et Simulation Multi Echelle, Université Paris-Est, MSME UMR 8208 CNRS, Champs-sur-Marne, France
- Faculté des Sciences de Tunis, Laboratoire de Spectroscopie Atomique, Moléculaire et Applications-LSAMA, Université de Tunis El-Manar, Tunis, Tunisia
| | - R. Ben Said
- Department of Chemistry, College of Science & Arts at Al-Rass, Qassim University, Al-Rass, Kingdom of Saudi Arabia
- Unité de recherche Physico-Chimie des Matériaux à l’Etat Condensé, Département de Chimie, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis, Tunisia
| | - N. Terzi
- Faculté des Sciences de Tunis, Laboratoire de Spectroscopie Atomique, Moléculaire et Applications-LSAMA, Université de Tunis El-Manar, Tunis, Tunisia
| | - N.-E. Jaidane
- Faculté des Sciences de Tunis, Laboratoire de Spectroscopie Atomique, Moléculaire et Applications-LSAMA, Université de Tunis El-Manar, Tunis, Tunisia
| | - M. Mogren Al Mogren
- Chemistry Department, Faculty of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - A. Elmarghany
- Chemistry Department, Faculty of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
- Faculty of Science, Suez University, Suez, Egypt
| | - M. Hochlaf
- Laboratoire de Modélisation et Simulation Multi Echelle, Université Paris-Est, MSME UMR 8208 CNRS, Champs-sur-Marne, France
| |
Collapse
|
16
|
Pindelska E, Sokal A, Kolodziejski W. Pharmaceutical cocrystals, salts and polymorphs: Advanced characterization techniques. Adv Drug Deliv Rev 2017; 117:111-146. [PMID: 28931472 DOI: 10.1016/j.addr.2017.09.014] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/21/2017] [Accepted: 09/14/2017] [Indexed: 12/11/2022]
Abstract
The main goal of a novel drug development is to obtain it with optimal physiochemical, pharmaceutical and biological properties. Pharmaceutical companies and scientists modify active pharmaceutical ingredients (APIs), which often are cocrystals, salts or carefully selected polymorphs, to improve the properties of a parent drug. To find the best form of a drug, various advanced characterization methods should be used. In this review, we have described such analytical methods, dedicated to solid drug forms. Thus, diffraction, spectroscopic, thermal and also pharmaceutical characterization methods are discussed. They all are necessary to study a solid API in its intrinsic complexity from bulk down to the molecular level, gain information on its structure, properties, purity and possible transformations, and make the characterization efficient, comprehensive and complete. Furthermore, these methods can be used to monitor and investigate physical processes, involved in the drug development, in situ and in real time. The main aim of this paper is to gather information on the current advancements in the analytical methods and highlight their pharmaceutical relevance.
Collapse
|
17
|
Electrochemical behavior of an anticancer drug 5-fluorouracil at methylene blue modified carbon paste electrode. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 65:262-8. [DOI: 10.1016/j.msec.2016.04.045] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 03/10/2016] [Accepted: 04/12/2016] [Indexed: 11/22/2022]
|
18
|
Bukkitgar SD, Shetti NP. Electrochemical behavior of anticancer drug 5-fluorouracil at carbon paste electrode and its analytical application. J Anal Sci Technol 2016. [DOI: 10.1186/s40543-015-0080-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
19
|
Javan MB, Soltani A, Azmoodeh Z, Abdolahi N, Gholami N. A DFT study on the interaction between 5-fluorouracil and B12N12 nanocluster. RSC Adv 2016. [DOI: 10.1039/c6ra18196a] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The most stable interaction of 5-FU drug molecule from its nitrogen head (di-enol form) over B12N12 nano-cage is determined using density functional theory calculations.
Collapse
Affiliation(s)
| | - Alireza Soltani
- Golestan Rheumatology Research Center
- Golestan University of Medical Science
- Gorgan
- Iran
| | | | - Nafiseh Abdolahi
- Golestan Rheumatology Research Center
- Golestan University of Medical Science
- Gorgan
- Iran
| | - Niloofar Gholami
- Young Researchers and Elite Club
- Gorgan Branch
- Islamic Azad University
- Gorgan
- Iran
| |
Collapse
|
20
|
Spectroscopic and electronic structure calculation of a potential chemotherapeutic agent 5-propyl-6-(p-tolylsulfanyl)pyrimidine-2,4(1H,3H)-dione using first principles. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.07.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
21
|
Ganbold EO, Yoon J, Cho KH, Joo SW. Energetic stabilities of thiolated pyrimidines on gold nanoparticles investigated by Raman spectroscopy and density functional theory calculations. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 150:104-110. [PMID: 26037494 DOI: 10.1016/j.saa.2015.05.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 04/30/2015] [Accepted: 05/04/2015] [Indexed: 06/04/2023]
Abstract
The adsorption structures of 2-thiocytosine (2TC) on gold surfaces were examined by means of vibrational Raman spectroscopy and quantum mechanical density functional theory calculations. The 1H-thione-amino form was calculated to be most stable among the six examined tautomers. The three plausible binding geometries of sulfur, pyrimidine nitrogen, and amino group binding modes were calculated to estimate the binding energies of the 1H-thione-amino form with six gold cluster atoms. Thiouracils including 2-thiouracil (2TU), 4-thiouracil (4TU), and 6-methyl-2-thiouracil (6M2TU) were also studied to compare their relative binding energies on gold atoms. The intracellular localization of a DNA base analog of 2TC on gold nanoparticles (AuNPs) in HeLa cells was identified by means of surface-enhanced Raman scattering. AuNPs were modified with 2TC by self-assembly. Our dark-field microscopy and z-depth-dependent confocal Raman spectroscopy indicated that 2TC-assembled AuNPs could be found inside cancer cells. On the other hand, we did not observe noticeably strong Raman peaks in the cases of thiouracils including 2TU, 4TU, and 6M2TU. This may be due to the additional amino group of 2TC, which can lead to a stronger binding of adsorbates on AuNPs.
Collapse
Affiliation(s)
- Erdene-Ochir Ganbold
- Department of Chemistry, Soongsil University, Sangdo-dong, Dongjak-gu, Seoul 156-743, Republic of Korea
| | - Jinha Yoon
- Department of Chemistry, Soongsil University, Sangdo-dong, Dongjak-gu, Seoul 156-743, Republic of Korea
| | - Kwang-Hwi Cho
- School of Systems Biomedical Science, Soongsil University, Sangdo-dong, Dongjak-gu, Seoul, Republic of Korea
| | - Sang-Woo Joo
- Department of Chemistry, Soongsil University, Sangdo-dong, Dongjak-gu, Seoul 156-743, Republic of Korea.
| |
Collapse
|
22
|
Spectroscopic and calorimetric studies of formation of the supramolecular complexes of PAMAM G5-NH₂ and G5-OH dendrimers with 5-fluorouracil in aqueous solution. Int J Pharm 2015; 490:102-11. [PMID: 25997661 DOI: 10.1016/j.ijpharm.2015.05.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 05/04/2015] [Accepted: 05/11/2015] [Indexed: 01/01/2023]
Abstract
The results of spectroscopic measurements (increase in solubility, equilibrium dialysis, (1)H NMR titration) and calorimetric measurements (isothermal titration ITC) indicate exothermic (ΔH<0) and spontaneous (ΔG < 0) combination of an antitumor drug, 5-fluorouracil, by both cationic PAMAM G5-NH2 dendrimer and its hydroxyl analog PAMAM G5-OH in aqueous solutions at room temperature. PAMAM G5-NH2 dendrimer combines about 70 molecules of the drug with equilibrium constant K ≅ 300, which is accompanied by an increase in the system order (ΔS < 0). Hydroxyl dendrimer, PAMAM G5-OH, combines about 14 molecules of 5-fluorouracil with equilibrium constant K ≅ 100. This process is accompanied by an increase in the system disorder (ΔS > 0).
Collapse
|
23
|
|
24
|
Muñoz Freán S, Alcolea Palafox M, Rastogi V. Effect of the microhydration on the tautomerism in the anticarcinogenic drug 5-fluorouracil and relationships with other 5-haloderivatives. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.09.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
25
|
Buczkowski A, Piekarski H, Palecz B. Stoichiometry and equilibrium constant of the complex of PAMAM-NH2 G4 and 5-fluorouracil. J Mol Liq 2012. [DOI: 10.1016/j.molliq.2012.06.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
26
|
Buczkowski A, Urbaniak P, Palecz B. Thermochemical and spectroscopic studies on the supramolecular complex of PAMAM-NH2 G4 dendrimer and 5-fluorouracil in aqueous solution. Int J Pharm 2012; 428:178-82. [DOI: 10.1016/j.ijpharm.2012.03.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2012] [Revised: 03/02/2012] [Accepted: 03/05/2012] [Indexed: 01/06/2023]
|
27
|
Rastogi VK, Palafox MA. Vibrational spectra, tautomerism and thermodynamics of anticarcinogenic drug: 5-fluorouracil. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:970-977. [PMID: 21664177 DOI: 10.1016/j.saa.2011.04.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 03/08/2011] [Accepted: 04/07/2011] [Indexed: 05/30/2023]
Abstract
The FT-IR and FT-Raman spectra of 5-Fluorouracil were recorded in the solid phase in the regions 400-4000 cm(-1) and 50-4000 cm(-1), respectively. The vibrational spectra were analysed and the observed fundamentals were assigned to different normal modes of vibration. The experimental wavenumbers were compared with the scaled vibrational values using DFT methods: the Ar matrix data were related to gas phase calculations, while the values of the solid state spectra were compared to those with dimer simulations. The study indicates that some features that are characteristic of vibrational spectra of uracil and its derivatives are retained in the spectrum of 5-fluorouracil and it exists in ketonic form in the solid phase. The tautomerism was also studied and the spectra of the two most stable forms were simulated. The calculated wavenumbers have been employed to yield thermodynamic properties.
Collapse
Affiliation(s)
- V K Rastogi
- Department of Physics, CCS University, Meerut 250 004, India.
| | | |
Collapse
|
28
|
Markova N, Enchev V, Ivanova G. Tautomeric Equilibria of 5-Fluorouracil Anionic Species in Water. J Phys Chem A 2010; 114:13154-62. [DOI: 10.1021/jp1063879] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nadezhda Markova
- Institute of Organic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria and REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
| | - Venelin Enchev
- Institute of Organic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria and REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
| | - Galya Ivanova
- Institute of Organic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria and REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
| |
Collapse
|
29
|
Alcolea Palafox M, Tardajos G, Guerrero-Martínez A, Vats JK, Joe H, Rastogi VK. Relationships observed in the structure and spectra of uracil and its 5-substituted derivatives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:1261-1269. [PMID: 20097598 DOI: 10.1016/j.saa.2009.12.042] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Revised: 11/06/2009] [Accepted: 12/08/2009] [Indexed: 05/28/2023]
Abstract
The effects on the geometry structure, atomic charges and vibrational wavenumbers of the main different substituents in the 5th position of the uracil ring were analysed, and relationships were established. The 5-monosubstituted derivatives studied were 5-XU (X=F, Cl, Br, I, CH(3), NH(2), NO(2)). The geometry and vibrational wavenumbers were determined in these molecules. The FT-IR and Raman spectra were studied with the support of B3LYP calculations using several basis sets. Several general conclusions were underlined.
Collapse
Affiliation(s)
- M Alcolea Palafox
- Departamento de Química-Fisica1, Facultad de Ciencias Químicas, Universidad Complutense, Madrid 28040, Spain
| | | | | | | | | | | |
Collapse
|
30
|
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.
Collapse
Affiliation(s)
- H R H Ali
- Chemical & Forensic Sciences/University Analytical Centre, University of Bradford, UK
| | | | | | | |
Collapse
|
31
|
Sardo M, Ruano C, Castro JL, López-Tocón I, Soto J, Ribeiro-Claro P, Otero JC. Surface-enhanced Raman scattering of 5-fluorouracil adsorbed on silver nanostructures. Phys Chem Chem Phys 2009; 11:7437-43. [DOI: 10.1039/b903823j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
32
|
Mishra S, Singh RK, Ojha AK. Investigation on bonding interaction of benzonitrile with silver nano particles probed by surface enhanced Raman scattering and quantum chemical calculations. Chem Phys 2009. [DOI: 10.1016/j.chemphys.2008.10.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
33
|
pH dependent SERS and solvation studies of tyrosine adsorbed on silver colloidal nano particles combined with DFT calculations. Chem Phys 2007. [DOI: 10.1016/j.chemphys.2007.07.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
34
|
Pavel I, Cota S, Kiefer W, Cîntă-Pînzaru S. SERS Substrate-Dependent Interaction of the Anticarcinogenic Drug 5-Fluorouracil with Silver. PARTICULATE SCIENCE AND TECHNOLOGY 2006. [DOI: 10.1080/02726350600840639] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|