Cadmium oxide nanoparticles from new organometallic Cd(II)-Schiff base complex and in vitro biological potentials: dual S. aureus and E. coli DNA gyrase inhibition by the precursors via in silico binding modes' study

被引：0

作者：

Ejidike, Ikechukwu P. ^{[1
,2
,3
]}

Direm, Amani ^{[4
,5
]}

Parlak, Cemal ^{[6
]}

Bamigboye, Mercy O. ^{[7
]}

Oluade, Olajumoke ^{[8
]}

Adetunji, Juliana B. ^{[9
]}

Ata, Athar ^{[2
,10
]}

Eze, Michael O. ^{[2
]}

Hollett, Joshua W. ^{[2
]}

Clayton, Hadley S. ^{[1
]}

机构：

[1] Univ South Africa, Coll Sci Engn & Technol, Dept Chem, ZA-1710 Florida, South Africa

[2] Univ Winnipeg, Fac Sci, Dept Chem, Winnipeg, MB R3B 2E9, Canada

[3] Anchor Univ, Fac Nat Appl & Hlth Sci, Dept Chem Sci, Lagos 100278, Nigeria

[4] Abbes Laghrour Univ, Fac Sci & Technol, Lab Struct Properties & Interatom Interact LASPI2A, Khenchela, Algeria

[5] Abbes Laghrour Univ, Fac Sci & Technol, Dept Matter Sci, Khenchela, Algeria

[6] Ege Univ, Fac Sci, Dept Phys, TR-35040 Izmir, Turkiye

[7] Univ Ilorin, Fac Phys Sci, Dept Ind Chem, Ilorin 240003, Nigeria

[8] Gombe State Univ, Fac Sci, Dept Chem, Gombe 760253, Nigeria

[9] Osun State Univ, Fac Basic Med Sci, Dept Biochem, Osogbo 210001, Nigeria

[10] Michigan Technol Univ, Coll Sci & Arts, Dept Chem, Houghton, MI 49931 USA

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2024年 / 50卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

Schiff base; Cd(II) complex; CdO nanoparticles; XRD; TEM; Antioxidant and antibacterial properties; Molecular docking; CDO NANOPARTICLES; STRUCTURAL-CHARACTERIZATION; OPTICAL-PROPERTIES; ANTIBACTERIAL; ANTIOXIDANT; ANTICANCER; LIGAND;

D O I：

10.1007/s11164-024-05291-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

At the nanoscale level, several biological processes take place, owing to the potential that engineered nanomaterials might interrelate with bio-molecules and cellular procedures. This study aimed to synthesize cadmium oxide nanoparticles via a one-step calcination process of tetradentate Schiff base-Cd(II) complex at different temperature ranges. The as-synthesized compounds were carried out via a viz UV-visible, elemental analysis, H-1 NMR, molar conductivity, transmission electron microscopy (TEM), FT-IR spectroscopy, and X-ray diffraction (PXRD). The band gap energy and average particle sizes of the CdO particles are respectively (2.69 eV, 3.54 eV), 26.88 nm for CdO@250, and (3.20 eV, 3.57 eV), 25.67 nm for CdO@300, while CdO@350 exhibited the 3.78 eV and 28.42 nm values. The antioxidant accomplishments of the test samples through the scavenging activity of DPPH radicals showed CdO@300 to possess (IC50 = 5.18 +/- 0.56 mu g/mL). Similarly, the as-synthesized CdO nanoparticles exhibited higher antibacterial activities against S. aureus and E. coli as compared to the corresponding Cd-HMB and ligand (HMB), while ciprofloxacin acted as a standard antibiotic. Furthermore, HMB and its complex Cd-HMB were docked against the DNA gyrase enzymes of S. aureus (PDB IDs: 5CDQ) and E. coli (PDB IDs: 6F86) as receptors. The binding sites docking results showed that the binding energies of HMB and Cd-HMB to 5CDQ ranged from - 3.44 to - 4.99 kcal/mol and from - 6.45 to - 6.64 kcal/mol, while the binding energies related to the target 6F86 are in the ranges of (- 3.64, - 4.76) kcal/mol and (- 6.08, - 6.09) kcal/mol respectively. Therefore, the significant antioxidant and antibacterial activities of the ligand (HMB), Cd-HMB, and CdO NPs review the broad application prospects of these compounds as therapeutic agents for wide-ranging biomedical applications.

引用

页码：2763 / 2791

页数：29