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Lima CD, Magalhães de Almeida Melo L, Arantes LC, Conceição NDS, de França Schaffel I, Machado LL, de Queiroz Ferreira R, Pio Dos Santos WT. Simple and selective screening method for the synthetic cathinone MDPT in forensic samples using carbon nanofiber screen-printed electrodes. Talanta 2024; 269:125375. [PMID: 37977086 DOI: 10.1016/j.talanta.2023.125375] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
3',4'-Methylenedioxy-N-tert-butylcathinone (MDPT), also known as tBuONE or D-Tertylone, is a synthetic cathinone (SC) frequently abused for recreational purposes due to its potent stimulant effects and similarity to illegal substances like methamphetamine and ecstasy. The structural diversity and rapid introduction of new SC analogs to the market poses significant challenges for law enforcement and analytical methods for preliminary screening of illicit drugs. In this work, we present, for the first time, the electrochemical detection of MDPT using screen-printed electrodes modified with carbon nanofibers (SPE-CNF). MDPT exhibited three electrochemical processes (two oxidations and one reduction) on SPE-CNF. The proposed method for MDPT detection was optimized in 0.2 mol L-1 Britton-Robinson buffer solution at pH 10.0 using differential pulse voltammetry (DPV). The SPE-CNF showed a high stability for electrochemical responses of all redox processes of MDPT using the same or different electrodes, with relative standard deviations less than 4.7% and 1.5% (N = 3) for peak currents and peak potentials, respectively. Moreover, the proposed method provided a wide linear range for MDPT determination (0.90-112 μmol L-1) with low LOD (0.26 μmol L-1). Interference studies for two common adulterants, caffeine and paracetamol, and ten other illicit drugs, including amphetamine-like compounds and different SCs, showed that the proposed sensor is highly selective for the preliminarily identification of MDPT in seized forensic samples. Therefore, SPE-CNF with DPV can be successfully applied as a fast and simple screening method for MDPT identification in forensic analysis, addressing the significant challenges posed by the structural diversity of SCs.
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Affiliation(s)
- Camila Diana Lima
- Departamento de Química, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Campus JK, 39100000, Diamantina, Minas Gerais, Brazil
| | - Larissa Magalhães de Almeida Melo
- Departamento de Química, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Campus JK, 39100000, Diamantina, Minas Gerais, Brazil
| | - Luciano Chaves Arantes
- Laboratório de Química e Física Forense, Instituto de Criminalística, Polícia Civil do Distrito Federal, 70610-907, Brasília, Distrito Federal, Brazil
| | - Nathália Dos Santos Conceição
- Departamento de Química, Universidade Federal do Espírito Santo, Campus Goiabeiras, 29075910, Vitória, Espírito Santo, Brazil
| | - Izabela de França Schaffel
- Departamento de Química, Universidade Federal do Espírito Santo, Campus Goiabeiras, 29075910, Vitória, Espírito Santo, Brazil
| | - Lara Lima Machado
- Departamento de Farmácia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Campus JK, 39100000, Diamantina, Minas Gerais, Brazil
| | - Rafael de Queiroz Ferreira
- Departamento de Química, Universidade Federal do Espírito Santo, Campus Goiabeiras, 29075910, Vitória, Espírito Santo, Brazil
| | - Wallans Torres Pio Dos Santos
- Departamento de Farmácia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Campus JK, 39100000, Diamantina, Minas Gerais, Brazil.
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Kadhim MM, Ihsan Mahmood Helmi Al-Bayati A, Taha A, Abdullaha SA, Jassim Khalil M, Mahdi Rheima A, Hachim SK. Pristine, Co, Rh, and, Ir decorated aluminum phosphide nano-sheet semiconductors as viable chemical sensors for cathinone. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2022.110305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Mohammadi H, Azami SM, Rafii-Tabar H. Density functional theory computation of the intermolecular interactions of Al 2@C 24 and Al 2@Mg 12O 12 semiconducting quantum dots conjugated with the glycine tripeptide. RSC Adv 2023; 13:9824-9837. [PMID: 36998517 PMCID: PMC10043880 DOI: 10.1039/d3ra01154b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
The nature of intermolecular forces within semiconductor quantum dot systems can determine various physicochemical properties, as well as their functions, in nanomedical applications. The purpose of this study has been to investigate the nature of the intermolecular forces operating between Al2@C24 and Al2@Mg12O12 semiconducting quantum dots and the glycine tripeptide (GlyGlyGly), and also consider whether permanent electric dipole–dipole interactions play a significant role vis-à-vis these molecular systems. The energy computations, including the Keesom and the total electronic interactions and the energy decomposition, together with the quantum topology analyses were performed. Our results demonstrate that no significant correlation is found between the magnitude and orientation of the electrical dipole moments, and the interaction energy of the Al2@C24 and Al2@Mg12O12 with GlyGlyGly tripeptide. The Pearson correlation coefficient test revealed a very weak correlation between the quantum and the Keesom interaction energies. Apart from the quantum topology analyses, the energy decomposition consideration confirmed that the dominant share of the interaction energies was associated with the electrostatic interactions, yet both the steric and the quantum effects also made appreciable contributions. We conclude that, beside the electrical dipole–dipole interactions, other prominent intermolecular forces, such as the polarization attraction, the hydrogen bond, and the van der Waals interactions can also influence the interaction energy of the system. The findings of this study can be utilized in several areas in the field of nanobiomedicine, including the rational design of cell-penetrating and intracellular drug delivery systems using semiconducting quantum dots functionalized with a peptide. The nature of intermolecular forces within semiconducting quantum dot systems can determine various physicochemical properties, as well as their functions, in nanomedical applications.![]()
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Affiliation(s)
- Hadi Mohammadi
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Shahid Beheshti University of Medical SciencesTehranIran
| | - S. M. Azami
- Department of Chemistry, Faculty of Sciences, Yasouj UniversityYasoujIran
| | - Hashem Rafii-Tabar
- Department of Medical Physics and Biomedical Engineering, School of Medicine, Shahid Beheshti University of Medical SciencesTehranIran
- The Physics Branch of the Academy of Sciences of IranTehranIran
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Kaviani S, Tayurskii DA, Nedopekin OV, Piyanzina I. DFT insight into Cd2+, Hg2+, Pb2+, Sn2+, As3+, Sb3+, and Cr3+ heavy metal ions adsorption onto surface of bowl-like B30 nanosheet. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Sensing behavior of porous B6N6 boron nitride covalent organic framework toward cathinone drugs: A DFT Study. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Al-Otaibi JS, Mary YS, Mary YS, Acharjee N, Churchill DG. Theoretical study of glycoluril by highly symmetrical magnesium oxide Mg 12O 12 nanostructure: adsorption, detection, SERS enhancement, and electrical conductivity study. J Mol Model 2022; 28:332. [PMID: 36163521 DOI: 10.1007/s00894-022-05332-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/21/2022] [Indexed: 12/07/2022]
Abstract
Using metal substrates that are nanoscale in size, surface-enhanced Raman scattering (SERS) is a technique for enhancing the Raman signal of biomolecules. Numerous industries including sensing materials, adsorption and medical devices, use nanomaterials like nanocages and nanoclusters. To discover a possible novel sensor platform involving a small metal cluster and a curved rigid substrate, we used density functional theoretical (DFT) simulations to explore the adsorption of glycoluril (GLC), a prospective drug intermediate, on a pure magnesium oxide cage (Mg12O12). This well defined cage was used as (i) an exact probable structure that could be used as well as (ii) a general model for MgO nanostructures. We also investigated the mono Al-doped Mg12O12 nanocage version Mg11AlO12. All computations were performed at the M06-2X level of theory. The GLC binds to the Mg12O12 nanocage by way of strong donor-acceptor interactions. The adsorption is releasing - 45.80 kcal mol-1 of energy. Due to Al doping, the energy gap of GLC-Mg11AlO12 (1.91 eV) is reduced from that of GLC-Mg12O12 (4.28 eV) and hence there is an increase in electrical conductivity of GLC-Mg11AlO12. The electronic change in the nanocage's conductivity can be transformed into an electrical signal which can be used to detect the presence of the drug analyte. In addition, when a GLC molecule is present, the work function of the nanocage is also reduced. The MgO nanocage, we conclude, is a work function type as well as a possible electronic sensor for GLC drug detection. GLC desorption from the Mg11AlO12 surface recovers more quickly in comparison with Mg12O12 recovery time. The AIM and NCIs assessed in this study were performed to help analyze the electronic structures of the complexes. Our findings pave the possibility for Mg11AlO12 nanostructures to be used in drug recognition.
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Affiliation(s)
- Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
| | | | | | - Nivedita Acharjee
- Department of Chemistry, Durgapur Government College, District-Paschim Bardhaman, Durgapur, West Bengal, India
| | - David G Churchill
- Department of Chemistry, Molecular Logic Gate Laboratory, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea. .,Therapeutic Bioengineering Section, KAIST Institute for Health Science and Technology (KIHST), Daejeon, Republic of Korea.
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