Study of the self-association of amoxicillin, thiamine and the hetero-association with biologically active compound chlorgenic acid

Abraha, Ataklti; Kebede, Alemu; Belay, Abebe

doi:10.5897/ajpp2016.4542

Cited by 8 publications

(4 citation statements)

References 26 publications

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“…For batch tests, stock solution was diluted to specific value of concentration for AMOX. The concentration of AMOX is determined by Ultraviolet-visible (UV)-visible spectrophotometer (Model Varian Cary 100conc., England) at wavelength of 270 nm (34,13).…”

Section: Kinetic Modelsmentioning

confidence: 99%

Na-Alginate Beads of Calcium / Iron-Layered Double Hydroxide for Treating Water Contaminated With Amoxicillin Antibiotic

Marwa F. Abed,

Ayad A.H. Faisal

2024

Iraqi J. Agric. Sci.

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The objective of this study was to prepare an adsorbent material from eggshells of chicken banished to the ambient as wastes to satisfy the ecological requirements of sustainable. The preparation process based on the extraction of calcium ions from eggshells and these ions must be reacted with iron to form nanoparticles of (Ca/Fe)-layered double hydroxides (LDHs) which immobilized as Na-alginate beads. Molar ration of calcium to iron, pH and dosage of LDH nanoparticles must be equal to 1, 12 and 5 g/100 mL to ensure that the prepared beads have highest ability to remove of Amoxicillin (AMOX) antibiotic with removal efficiency equal to 32% for operational conditions of Co=100 mg/L, beads dosage=0.5 g/50 mL, speed=200 rpm, pH=7 for 3 hrs. To increase this efficiency to ≥ 90%, best conditions must be time 90 min, pH 7, and beads mass 1.2 g/ 50 mL for Co 100 mg/L at 200 rpm in the batch mode. The Pseudo second order has high capability in the description of such tests with coefficient of determination (R2) ≥ 0.9924 and sum of squared error (SSE) ≤ 0.1287. Hence, the sorption of AMOX onto beads is governed by the chemisorption process. The reflections of XRD analysis proved the presence of (Ca/Fe)-LDH nanoparticles with size of 13.49 nm, calcium hydroxide (Ca(OH)2) and calcium carbonate (CaCO3)

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Section: Kinetic Modelsmentioning

confidence: 99%

Na-Alginate Beads of Calcium / Iron-Layered Double Hydroxide for Treating Water Contaminated With Amoxicillin Antibiotic

Marwa F. Abed,

Ayad A.H. Faisal

2024

Iraqi J. Agric. Sci.

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“…In order to determine the concentration of amoxicillin UV/Vis spectroscopy is broadly used [30][31][32]. As reported by Ataklti et [25]) and autoclaved in ) and autoclaved in °C for 30 °C for 30 min.…”

Section: Characterization Of Functionalized Nd Suspensionsmentioning

confidence: 99%

“…In order to determine the concentration of amoxicillin UV/Vis spectroscopy is broadly used [30][31][32]. As reported by Ataklti et al two characteristics absorbance maxima were recorded for amoxicillin at 228 nm and at 278 nm [30]. Lee et al used maximum the absorbance value 270 nm for the determination of the calibration curve [20].…”

Section: Characterization Of Functionalized Nd Suspensionsmentioning

confidence: 99%

Modification of titanium implants using biofunctional nanodiamonds for enhanced antimicrobial properties

et al. 2020

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The present study describes a novel antimicrobial surface using anodic oxidation of titanium and biofunctional detonation nanodiamonds (ND). ND have been loaded with antibiotics (amoxicillin or ampicillin) using poly(diallyldimethylammonium chloride) (PDDA). Successful conjugation with PDDA was determined by dynamic light scattering, which showed increase in the hydrodynamic diameter of ND agglomerates and shift of zeta potential towards positive values. The surface loading of amoxicillin was determined using UV–vis spectroscopy and the maximum of 44% surface loading was obtained. Biofunctional ND were immobilized by anodic oxidation within a titanium oxide layer, which was confirmed by scanning electron microscopy. The in vitro antimicrobial properties of ND suspensions were examined using Kirby-Bauer test with E. coli. Modified titanium surfaces comprising biofunctional ND were evaluated with E. coli inoculum by live/dead assay staining. Both biofunctional ND suspensions and modified titanium surfaces presented inhibition of bacteria growth and increase in bacteria lethality.

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“…Biological treatment methods, such as conventional activated sludge and aerobic bioreactors, can also be tailored for pharmaceutical wastewater treatment. Microorganisms play a pivotal role in biodegrading pharmaceutical compounds, albeit some may display resistance, necessitating longer hydraulic retention times for complete removal [14,15]. Furthermore, membrane-based technologies such as nano-filtration and reverse osmosis have proven valuable for eliminating both organic and inorganic contaminants, including pharmaceuticals, from wastewater [16].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic Degradation of the Antibiotic Sulfamethazine Using Decatungstate Anions in an Aqueous Solution: Mechanistic Approach

Edaala,

El Mersly,

Aloui Tahiri

et al. 2023

Water

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The aim of this study is to propose a successful method for the treatment of water contaminated by pharmaceutical pollutants through homogeneous photocatalysis in the presence of decatungstate ions (W10O324−). Sulfamethazine (SMZ), a sulfonamide antibiotic, was used as a model molecule. The results showed that SMZ could be effectively degraded with this process under simulated solar irradiation. SMZ degradation kinetics were studied with different dioxygen and SMZ concentrations, pH values, and photocatalyst masses. Optimal conditions were determined to be pH 7, [Na4W10O32] = 0.33 g/L, and [SMZ] = 13.9 mg/L under the aerated condition, resulting in 85% SMZ degradation in 240 min, using a 36W-UVA/UVB light source. Hydroxyl radicals were identified as the major contributors to SMZ elimination. Four photoproducts identified with high-performance liquid chromatography coupled with mass spectrometry were formed by the cleavage of the sulfonamide bond and the hydroxylation of both the aromatic ring and pyrimidine moiety. SMZ was completely mineralized after 90 h of irradiation in the presence of decatungstate anions. These results provided a mechanism for the photocatalytic degradation of SMZ in an aqueous solution. To sustain this mechanism, theoretical studies were carried out using density functional theory calculations. This involved Fukui functional analyses, including ring hydroxylation, C-S bond cleavage, and molecular rearrangement processes.

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Study of the self-association of amoxicillin, thiamine and the hetero-association with biologically active compound chlorgenic acid

Cited by 8 publications

References 26 publications

Na-Alginate Beads of Calcium / Iron-Layered Double Hydroxide for Treating Water Contaminated With Amoxicillin Antibiotic

Na-Alginate Beads of Calcium / Iron-Layered Double Hydroxide for Treating Water Contaminated With Amoxicillin Antibiotic

Modification of titanium implants using biofunctional nanodiamonds for enhanced antimicrobial properties

Photocatalytic Degradation of the Antibiotic Sulfamethazine Using Decatungstate Anions in an Aqueous Solution: Mechanistic Approach

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