1
|
Hassan A, Iqbal MA, Bhatti HN, Shahid M. N-heterocyclic carbene based Bi-nuclear organoselenium compounds impart a mild biocidal potential compared to their ligands: Synthesis, characterization, computational studies. Comput Biol Chem 2023; 107:107963. [PMID: 37776812 DOI: 10.1016/j.compbiolchem.2023.107963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/18/2023] [Accepted: 09/21/2023] [Indexed: 10/02/2023]
Abstract
N-heterocyclic carbene (NHC) based compounds are remarkably known for astonishing biological potentials. Coordination of metal center with these compounds can substantially improve the biological potential for better efficacy. In this context, three binuclear azolium salts (L1-L3) and subsequent selenium adducts L1Se-L3Se were synthesized and assured through analytical techniques. Synthesized compounds were also simulated through computational approach and results were compared with experimental observations that also relatable with biological potentials. Synthesized compounds were screened against bacterial strains and interestingly, the studied compounds showed good antimicrobial potential with MIC values of 7.01, 10.7 and 10.5 µM for S. Aureus (gram positive bacteria) while 12.5, 11.75 and 14.5 µM against E. Coli (gram negative bacteria). The studied compounds showed good antioxidant activity to scavenge DPPH free radicals among which azolium salts were found better in antioxidant potential (IC50 5.75-6.55 µg/mL) than their respective selenium compounds (IC50 9.50-12.75 µg/mL). The hemolytic assay against red blood cells showed that ligands are least toxic comparative to their Se-adducts and can be further trialed for In Vivo studies.
Collapse
Affiliation(s)
- Ahmad Hassan
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, Pakistan; Organometallic and Coordination Chemistry Laboratory, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Muhammad Adnan Iqbal
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, Pakistan; Organometallic and Coordination Chemistry Laboratory, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan.
| | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Shahid
- Department of Biochemistry, University of Agriculture Faisalabad, Faisalabad, Pakistan
| |
Collapse
|
2
|
Mageed AH, Al-Ameed K. Synthesis, structural studies and computational evaluation of cyclophanes incorporating imidazole-2-selones. RSC Adv 2023; 13:17282-17296. [PMID: 37323874 PMCID: PMC10265033 DOI: 10.1039/d3ra02913a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 05/17/2023] [Indexed: 06/17/2023] Open
Abstract
We report new cyclophanes containing imidazole-2-selone groups linked by xylylene rings. A set of imidazole-2-selone cyclophanes is synthesized by reaction corresponding to imidazolium cyclophanes with selenium in the presence of K2CO3. The structural behavior of the new imidazole-2-selone cyclophanes was determined by 1H and 13C NMR spectra and X-ray diffraction studies. Cyclophanes incorporating o-xylylene or mesitylene-m-cyclophane linked by selone groups were mutually syn in both the solid state and solution, and the cyclophanes showed a conformation similar to the cone conformation of calix[4]arenes. Cyclophanes incorporating p-xylylene or m-xylylene linked by selone groups showed two conformations in the solution: one mutually syn and the other mutually anti. There was no interconversion for both conformations observed on the NMR timescale. In the solid state, three conformations were detected for the p-xylylene-linked cyclophane: one is mutually syn and the other two are mutually anti and partial cone conformations. In the m-xylylene-linked case, only anti-conformation was characterized in the solid state. A density functional analysis was conducted to interpret the stability of the studied compounds and shed light on their origin. The energy preference analysis is in consistent agreement with the observed geometries and their co-existence.
Collapse
Affiliation(s)
- Ahmed Hassoon Mageed
- Department of Chemistry, Faculty of Science, The University of Kufa P. O. Box 21 Najaf 54001 Iraq
| | - Karrar Al-Ameed
- Department of Chemistry, Faculty of Science, The University of Kufa P. O. Box 21 Najaf 54001 Iraq
| |
Collapse
|
3
|
Synthesis, molecular docking and anticancer potential of azolium based salts and their silver complexes: DNA/BSA interaction studies and cell cycle analysis. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120921] [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]
|
4
|
Nadeem RY, Yaqoob M, Yam W, Haque RA, Iqbal MA. Synthesis, characterization and biological evaluation of Bis-benzimidazolium salts and their silver(I)-N-heterocyclic carbene complexes. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02942-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
5
|
Kamal A, Iqbal MA, Bhatti HN, Ghaffar A. Selenium- N-heterocyclic carbene (Se-NHC) complexes with higher aromaticity inhibit microbes: synthesis, structure, and biological potential. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2101921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Amna Kamal
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Adnan Iqbal
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
- Organometallic and Coordination Chemistry Laboratory, University of Agriculture, Faisalabad, Pakistan
| | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Abdul Ghaffar
- Department of Physics, University of Agriculture, Faisalabad, Pakistan
| |
Collapse
|
6
|
Synthesis, In silico and in vitro studies of Silver (I)-N heterocyclic carbene complexes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
7
|
Enzymatic glycosylation of menthol: optimization of synthesis and extraction processes using response surface methodology and biological evaluation of synthesized product. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02061-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
8
|
Design, DFT studies, antimicrobial and antioxidant potential of Binuclear N-heterocyclic Carbene (NHCs) complexes, Probing the aspect of DNA interaction through In-vitro and In-silico approach. Comput Biol Chem 2021; 95:107591. [PMID: 34702631 DOI: 10.1016/j.compbiolchem.2021.107591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 10/02/2021] [Accepted: 10/11/2021] [Indexed: 11/24/2022]
Abstract
N-heterocyclic carbene (NHC) adducts have shown remarkable biological potential for numerous medical applications. With an aim to improve biological potential of benzimidazolium salts, newer analogues of benzimidazole and their silver complexes were synthesized and characterized. Synthesized salts (L1-L2) and silver complexes (C1-C2) were confirmed through elemental analysis, UV-visible spectroscopy, FTIR, 1H NMR & 13C NMR spectroscopy. The compounds C1 & C2 were found stable in solution form for studied time period when examined spectroscopically and showed optimum lipophilicity when measured for their partition coefficient through flask shake method. Synthesized compounds showed good antimicrobial potential against gram positive bacterial strain S. Aureus with IC50 2.02±0.12 and 2.11±0.13 µM respectively while 2.11±0.1 and 2.28±0.17 µM against gram negative bacterial strain E. Coli for C1 and C2 respectively. The interaction study of the related compounds with DNA was predicted by molecular docking study, which confirmed that the studied compound C1 (-8.04 kcal/mol) has a higher binding energy than compound C2 (-4.23 kcal/mol); Also, the compound C1 exhibits a better affinity against to DNA than Ethidium bromide (-7.68 kcal/mol) and cisplatin (-6.21 kcal/mol).The claim was practically assured through spectroscopic and viscometeric method which confirmed that compounds have good affinity for DNA with binding constant kb, 5.78×104 M-1 and 6.84×104 M-1 for C1 and C2 respectively.
Collapse
|
9
|
Sarfraz RA, Ashraf R, Bedi S, Sardar I. Bioactivity-guided nanoparticle synthesis from Zingiber officinale and Mentha longifolia. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2021. [DOI: 10.1680/jbibn.21.00018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
To date, various reports have exhibited the antidiabetic activity of plant extracts, but this activity could be improved through the conversion of plant bioactives into metal nanoparticles. Aqueous plant extracts were prepared from two plants, Zingiber officinale and Mentha longifolia. Silver nanoparticles from aqueous plant extracts were synthesized and characterized through spectroscopic techniques, including ultraviolet–visible spectroscopy and Fourier transform infrared spectroscopy and scanning electron microscopy, in comparison with their respective plant extracts. After successful synthesis, these nanoparticles were evaluated for biological potentials of antioxidant, antimicrobial and antidiabetic activities. The nanoparticles of both plants offered outstanding antidiabetic potential, but the silver nanoparticles of Z. officinale showed the highest inhibition potential of 80.52% to α-amylase even at lower concentrations. The synthesized nanoparticles were found to be better antimicrobial agents against Bacillus subtilis and Escherichia coli as measured through a well diffusion assay as compared with aqueous extracts. These nanoparticles offered antioxidant potential that was better than that of their plant extracts but was slightly lower than that of the positive control gallic acid. This study gives a direction for improvement of the biological activity of plant-based medicine through green synthesis of silver nanoparticles.
Collapse
Affiliation(s)
- Raja Adil Sarfraz
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Rizwan Ashraf
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Saira Bedi
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Iqra Sardar
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| |
Collapse
|
10
|
Shahzad K, Majid ASA, Khan M, Iqbal MA, Ali A. Recent advances in the synthesis of (99mTechnetium) based radio-pharmaceuticals. REV INORG CHEM 2021. [DOI: 10.1515/revic-2020-0021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
Technetium radionuclide (99mTc) has excellent extent of disintegration properties and occupies a special place in the field of nuclear medicinal chemistry and other health disciplines. Current review describes recent approaches of synthesis in detailed ways for radio-pharmaceuticals of technetium which have been developed to treat and diagnose the biotic disorders. These technetium labeled radio-pharmaceuticals have been established to apply in the field of diagnostic nuclear medicine especially for imaging of different body parts such as brain, heart, kidney, bones and so on, through single photon emission computed tomography (SPECT) that is thought to be difficult to image such organs by using common X-ray and MRI (Magnetic Resonance Imaging) techniques. This review highlights and accounts an inclusive study on the various synthetic routes of technetium labeled radio-pharmaceuticals using ligands with various donor atoms such as carbon, nitrogen, sulphur, phosphorus etc. These compounds can be utilized as next generation radio-pharmaceuticals.
Collapse
Affiliation(s)
- Khurram Shahzad
- Department of Chemistry , University of Agriculture , Faisalabad , 38000 , Pakistan
| | | | - Mumtaz Khan
- Health Physics Division, Pakistan Institute of Nuclear Science and Technology , Islamabad , Pakistan
| | - Muhammad Adnan Iqbal
- Department of Chemistry , University of Agriculture , Faisalabad , 38000 , Pakistan
- Organometallic and Coordination Chemistry Laboratory, University of Agriculture , Faisalabad , 38000 , Pakistan
| | - Asjad Ali
- Department of Chemistry , University of Agriculture , Faisalabad , 38000 , Pakistan
| |
Collapse
|
11
|
Organometallic complexes of neodymium: an overview of synthetic methodologies based on coordinating elements. REV INORG CHEM 2021. [DOI: 10.1515/revic-2020-0019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Abstract
Organometallic complexes of neodymium have unique coordinating ability to form both micro and macromolecules as well as metal-based polymers. These complexes have been reported in different fields and play a tremendous role in luminescence, catalytic, biological and magnetic applications. So, the current study will comprise all possible routes for the synthesis of organometallic complexes of neodymium. Neodymium complexes have been synthesized of single, double, triple and tetra linkages with H, C, N, O as well as S, B, and X. The detailed synthetic routes have been classified into four categories but in brief, neodymium forms complexes by reacting metal chloride, nitrate or oxide (hydrated or dehydrated) as precursor along with appropriate ligand. Most applied solvents for neodymium complexes were Toluene and THF. These complexes required a range of temperature based on the nature of complexes as well as linkages. The authors have surveyed the research work published through 2011–2020 and provide a comprehensive overview to understand the synthetic routes of organometallic complexes of neodymium.
Collapse
|