Based on the versatile nature and applications of Carbon foam (CF), up to now many attempts were performed improve structure properties CF by incorporating various additives in matrix. But these improved one property cost another ones. Herein, we have synergistically incorporated multi-walled carbon nanotubes (MWCNTs) graphene oxide (GO) with varying loadings as matrix via direct pyrolysis achieve all desired properties. Seven different types composites including pure prepared their effect...

In this work, a novel ZnS/chitosan composite was fabricated as an effective catalyst for the photodegradation of Acid Brown 5G and Black 2BNG carcinogenic azo dyes in presence ultraviolet irradiations. The as-fabricated investigated using different spectroscopic tools such FT-IR, XRD, UV–Vis, HR-TEM, FE-SEM. successful synthesis evidenced through obvious damage crystalline structure ZnS appearance characteristic XRD peaks chitosan at 2ɵ=8.99° 20.30°. Also, HR-TEM FE-SEM images confirmed...

Doum fruit and pomegranate peels are riches healthy nutrients such as fiber, minerals antioxidant potentially protect from diet related diseases. This research was conducted to study the influence of ice cream enriched with powder (PPP) syrup (DFS) alone or in a combination at different ratios on its physicochemical, rheological, microbiological, organoleptic properties. Ice PPP DFS have high contents total solids, protein, fat, ash, antioxidants activity, gross energy which raised up...

We developed a novel, simple, sensitive, accurate, and precise method for the determination of calcitonin in different serum samples with medullar thyroid carcinoma. The designed flower-like thin film gold nanoparticles doped sol-gel/polyethylene glycol mold are used as an optical biosensor efficient calcitonin. sensor was characterized by transmission electron microscopy, scanning X-ray diffraction, energy-dispersive microanalysis, Fourier-transform infrared spectroscopy. efficiency...

Abstract This study was undertaken to determine the cadmium and lead concentrations in low-price cosmetic products Saudi market. An analytical test performed for 13 (five lipsticks, five foundations, three eyeliners) using a flame atomic absorption spectrophotometer. The heavy metals were determined as trace minerals all samples. mean value each metal different follows: 0.019532 (lipstick group), 0.020842 (foundation 0.026237 (eyeliner group) ppm cadmium, 0.032744 0.046466 0.041903 lead....

In this work, a simple, time saving, accurate and sensitive method for the direct spectrophotometric detection of cobalt ion using two new fluorophore azo dyes, R1 R2, were achieved. The based on complex formation between Co(II) these compounds-based fluorene pyrene moieties. To attain optimal conditions ion, several parameters such as effect solvents, pH, reagent concentration, sequence addition, temperature explored. absorption maximum Co(II)-R1 orange color complexes was accomplished at...

A facile green synthesis ball milling technique was used to prepare series of oxo-N'-(1-(pyridin-2-yl) ethylidene)-3-(thiazol-2-ylamino)propanehydrazide (H2L) complexes with UO2(II), Co(II), Cu(II), Pd(II) and Zn(II) ions. The configuration isolated compounds established based on spectroscopic, analytical as well conformational techniques. Material-studio package applied propose the most suitable atomic-distribution within ligand its via DFT method. octahedral geometry proposed for all...

The monoclinic CuO has a natural tendency to grow into sheet-like structures from alkaline solutions without the need for any specialized reaction conditions or structural directing agents. We demonstrate this growth habit of by heterogeneously nucleating it onto Ni foam substrate just ammonical Cu salts. kinetics were found be fast and, dense, interlaced thin films with an average sheet width 20 nm can grown simply controlling degree supersaturation solution. Strongly adhered thicknesses...

No single analytical method can cover the whole metabolome and choice of which platform to use may inadvertently introduce chemical selectivity.

Efflux pumps are critically important membrane components that play a crucial role in strain tolerance Pseudomonas putida to antibiotics and aromatic hydrocarbons result these toxicants being expelled from the bacteria. Here, effect of propranolol on P. was examined by sudden addition 0.2, 0.4 0.6 mg mL-1 this β-blocker several strains putida, including wild type DOT-T1E efflux pump knockout mutants DOT-T1E-PS28 DOT-T1E-18. Bacterial viability measurements reveal TtgABC plays more than...

An exceptionally interesting stress response of Pseudomonas putida strains to toxic substances is the induction efflux pumps that remove chemical from bacterial cell out external environment. To exploit these microorganisms their full potential a deeper understanding interactions between bacteria and organic solvents required. Thus, this study focuses on investigation metabolic changes in P. upon exposure toluene.Investigate observable alterations during three (DOT-T1E, its mutants...

Partial least squares (PLS) is one of the most commonly used supervised modelling approaches for analysing multivariate metabolomics data. PLS typically employed as either a regression model (PLS-R) or classification (PLS-DA). However, in studies it common to investigate multiple, potentially interacting, factors simultaneously following specific experimental design. Such data often cannot be considered “pure” problem. Nevertheless, these have still been treated problem and this could lead...

A simple, accurate and precise RP-HPLC method was developed for the simultaneous determination of chloroquine, pyrimethamine cetirizine hydrochloride concentrations in bulk drug human serum. The assay performed using a mobile phase methanol: water (70:30) at pH 2.8 ± 0.05 on Purospher C-18 column with UV detection 230 nm rosuvastatin used as an internal standard. retention times observed were 3.5, 2.5 5.5 minutes, respectively. found to be specific assayed drugs showing linear response...

Recently, metal exchange (transmetalation) techniques have become popular for the post-synthesis modification of organic complexes (MOCs). Here, we explored possibility toxic ion (mercury (Hg)) from a model polyphenol, curcumin, which is very important food additive, using much less counterpart (copper). While attachment different metals on polyphenol was confirmed picosecond resolved fluorescence technique, surface plasmon resonance (SPR) band Ag nanoparticle (NP) employed as tool to detect...

Background:: Cadmium (Cd2+) is considered to be one of the most important hazardous heavy metals due its toxicity for living organisms at low concentration levels. Therefore, estimation trace Cd2+ in different types various samples a very objective chemists using effective methods. In present work, novel, green, easy and fast ultrasoundassisted ionic liquid-dispersive liquid phase microextraction technique (UA-IL-DLPME) was developed preconcentrate determine quantities cadmium ions from real...

Mass gathering events commonly encounter environmental challenges that necessitate assurance of water quality and food security. The current outbreak the coronavirus disease 2019 (COVID-19) call for maintaining safe drinking supply providing assessment tools to avoid contamination in sources or distribution networks. Arid conditions also add more stress on supplied mass events. Herein, we assess (desalinated 95% groundwater 5%) Makkah city, Saudi Arabia during a event (9.6 million people)...

The presence of heavy metals in drinking water or wastewater poses a serious threat to the ecosystem. Hence, present study focused on synthesizing SnCaAl 2 O 3 core-shell nanoparticles (C.N.P.s) α-Alumina phase by thermal annealing stacked structure sandwiched between two Al layers at low temperatures. obtained showed Sn N.P. floating gate with an Al2O3 dielectric tunneling barrier remove excess these from polluted water. To characterize prepared composites, X-ray diffraction (XRD), field...


 Purpose: To develop simple, rapid, and selective spectrophotometric methods for the assay of sertraline in a pharmaceutical formulation.
 Method: These depend on formation colored ion-pair complexes between drug five different reagents; methyl blue (MB), bromophenol red (BPR), green (MG), phenol (PR), orange (MO) B-R buffer solutions pH ranging from 2.0 – 8.0. The products were measured at 668, 747, 647, 717, 553 nm, respectively.
 Results: calibration graphs linear over...