Sadegh Karimi

Sadegh Karimi
Persian Gulf University | PGU · Department of Chemistry

PhD in Analytical Chemistry

About

21
Publications
3,021
Reads
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385
Citations
Citations since 2016
12 Research Items
329 Citations
20162017201820192020202120220204060
20162017201820192020202120220204060
20162017201820192020202120220204060
20162017201820192020202120220204060

Publications

Publications (21)
Article
Among different hollow nanostructures, the preparation of hollow mesoporous silica nanoparticles (HMSNs) is still a hotspot research field due to their unique properties e.g., large pore sizes and volumes, high drug loading capacity, ease of surface modification, large surface area, and biodegradability. Herein, novel uniform HMSNs are prepared for...
Article
In the present study, an efficient protocol was introduced for synthesis of biocompatiblemesoporous silica nanoparticles (MSN) with an adequate size and high drug loadingcapacity. Herein, the tri-ethanolamine, TEA, dominantly controlled the pH of solution inaddition to regulate nanoparticle sizes via complexing with ortho silicate functionalgroup....
Article
In the present study, an efficient protocol was introduced for synthesis of biocompatible mesoporous silica nanoparticles (MSN) with an adequate size and high drug loading capacity. Herein, the tri-ethanolamine, TEA, dominantly controlled the pH of solution in addition to regulate nanoparticle sizes via complexing with ortho silicate functional gro...
Article
Advanced exploitation in the green synthesis of nanomaterials has received considerable attention in the recent years. So that, an ecofriendly approach is proposed for the synthesis of silver-silver chloride nanoparticles (Ag@AgCl-NPs) which does not require any external reducing & capping agents, organic solvent and external halide sources using a...
Article
We developed a convenient, label free and non-aggregation–based silver nanoparticles probe for colorimetric detection of melamine. Ag nanoparticles (AgNPs) were synthesized using gallic acid, known as 3, 4, 5-trihydroxybenzoic acid, as a reducer and stabilizing agent at room temperature simultaneously. Formation of AgNPs was confirmed by various te...
Article
A sensitive, selective and efficient sensor based on carbon paste electrode modified by newly synthesized mesoporous silica nanoparticles (MSNs/CPE) is proposed for electrochemical determination of tyrosine (Tyr) and tryptophan (Trp). In the proposed synthesis procedure of MSN, a weak acid such as NH4NO3 has been used in the washing stage, instead...
Article
Full-text available
In the present study, a simple and eco-friendly method was developed for preparation of stable silver chloride nanoparticles by aqueous extract of Sargassum boveanum alga collected from the Persian Gulf. By increasing the pH, the as-prepared silver chloride nanoparticles were transformed to the silver nanoparticles. The green synthesized silver chl...
Article
In the present study, a cost-effective, green and simple synthesis method was applied for preparation of stable silver chloride nanoparticles (AgCl-NPs). The method was done by forming AgCl-NPs from Ag+ ions using aqueous extract of brown algae (Sargassum Boveanum) obtained from the Persian Gulf Sea. This extract was served as capping agent during...
Article
Green and cost-effective synthesis method for preparation of metal nanoparticles and their applications for development of simple sensing strategy are of great demand to research community. So that in the present study, we report a green route for synthesis of silver chloride nanoparticles (AgCl-NPs) using brown algae from the Persian Gulf. Then it...
Article
The aim of present study is to investigate the combination of Fourier transform infrared (FT-IR) spectroscopy with pattern recognition to recognize the quality of standard saffron from those which have been adulterated with various types of food colorants. Transmittance FT-IR spectra have been obtained for reference saffron samples and those which...
Article
The electrocatalytic oxidation of metformin (MET) was investigated at Cu(OH)2 nanoparticle-modified carbon ionic liquid electrode (Cu(OH)2/CILE). This electrode exhibited excellent characteristic for the electrocatalytic oxidation of metformin at the potential of +0.6 V with good sensitivity and selectivity. The presence of Cu(OH)2 nanostructures i...
Article
Full-text available
Edible parts of date palm fruits (DPF) from Iran have been evaluated for their antioxidant activities (AA) and total phenolic content (TPC) using Trolox equivalent antioxidant capacity, TEAC, and Folin-Ciocalteu methods, respectively. Seven kinds of soft dates (SD), namely Berehi, Mordasang, Mazafati, Kabkab, Khanizi, Shahabi and Medjool dates; fou...
Article
We have recently suggested using clustering of variables (CLoVA) based on unsupervised pattern recognition for partitioning variables into informative and redundant ones. Because data clustering plays a central role in CLoVA, in the present study, we compared the efficiency of different clustering methods including the Kohonen self‐organizing map (...
Article
In multivariate spectral calibration by principal component regression (PCR), the principal components (PCs) are calculated from the response data measured at all employed instrument channels; however some channels are redundant and their responses do not possess useful information. Thus, the extracted PCs possess mixed information from both useful...
Article
Dowex (strongly acidic cationic exchange resin) polymer is employed as solid acid catalyst for the clean and less hazardous protection of carbonyl compounds as phenylhydrazones and 2,4-dintrophenylhydrazones in ethanol under reflux conditions. The reactions proceed very smoothly and the yields of the derivatives are excellent.

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