Gamal O. El-Sayed

1.5k total citations
52 papers, 1.3k citations indexed

About

Gamal O. El-Sayed is a scholar working on Analytical Chemistry, Water Science and Technology and Pharmacology. According to data from OpenAlex, Gamal O. El-Sayed has authored 52 papers receiving a total of 1.3k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Analytical Chemistry, 12 papers in Water Science and Technology and 8 papers in Pharmacology. Recurrent topics in Gamal O. El-Sayed's work include Adsorption and biosorption for pollutant removal (11 papers), Analytical Methods in Pharmaceuticals (10 papers) and Antibiotics Pharmacokinetics and Efficacy (8 papers). Gamal O. El-Sayed is often cited by papers focused on Adsorption and biosorption for pollutant removal (11 papers), Analytical Methods in Pharmaceuticals (10 papers) and Antibiotics Pharmacokinetics and Efficacy (8 papers). Gamal O. El-Sayed collaborates with scholars based in Egypt, United States and India. Gamal O. El-Sayed's co-authors include Mohsen Abdel‐Tawwab, Khalid Z. Elwakeel, M. Yehia, Yousry M. Issa, Sahar M. Ibrahim, Mohamed Heikal, Mostafa Y. Nassar, Alaa S. Amin, T. Siyam and A. M. El‐Kamash and has published in prestigious journals such as Journal of Colloid and Interface Science, Construction and Building Materials and Desalination.

In The Last Decade

Gamal O. El-Sayed

48 papers receiving 1.2k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Gamal O. El-Sayed Egypt 17 593 244 232 212 146 52 1.3k
Naseem Rauf Pakistan 13 806 1.4× 147 0.6× 258 1.1× 193 0.9× 217 1.5× 30 1.3k
Márcia Teresinha Veit Brazil 19 889 1.5× 130 0.5× 179 0.8× 178 0.8× 309 2.1× 55 1.4k
Rahmiana Zein Indonesia 16 660 1.1× 226 0.9× 228 1.0× 120 0.6× 121 0.8× 100 1.1k
Zill-i-Huma Nazli Pakistan 12 614 1.0× 125 0.5× 285 1.2× 235 1.1× 142 1.0× 30 1.5k
Mongi Seffen Tunisia 27 1.3k 2.1× 247 1.0× 296 1.3× 253 1.2× 319 2.2× 57 1.9k
Sónia A. Figueiredo Portugal 21 545 0.9× 145 0.6× 162 0.7× 193 0.9× 171 1.2× 42 1.1k
Choong Jeon South Korea 23 1.1k 1.8× 185 0.8× 238 1.0× 275 1.3× 445 3.0× 52 1.9k
Marwa El‐Azazy Qatar 22 479 0.8× 220 0.9× 212 0.9× 273 1.3× 178 1.2× 59 1.4k
Daniela Șuteu Romania 18 592 1.0× 188 0.8× 271 1.2× 206 1.0× 132 0.9× 76 1.2k
Madhava Anil Kumar India 20 371 0.6× 129 0.5× 169 0.7× 197 0.9× 114 0.8× 61 1.2k

Countries citing papers authored by Gamal O. El-Sayed

Since Specialization
Citations

This map shows the geographic impact of Gamal O. El-Sayed's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gamal O. El-Sayed with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gamal O. El-Sayed more than expected).

Fields of papers citing papers by Gamal O. El-Sayed

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gamal O. El-Sayed. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gamal O. El-Sayed. The network helps show where Gamal O. El-Sayed may publish in the future.

Co-authorship network of co-authors of Gamal O. El-Sayed

This figure shows the co-authorship network connecting the top 25 collaborators of Gamal O. El-Sayed. A scholar is included among the top collaborators of Gamal O. El-Sayed based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Gamal O. El-Sayed. Gamal O. El-Sayed is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
El-Sayed, Gamal O., et al.. (2025). LEO Communication Constellation Design Using Street of Coverage (SOC) Technique. Journal of Physics Conference Series. 3070(1). 12020–12020.
2.
El-Sayed, Gamal O., et al.. (2024). Utilization of thermally treated sludge for the removal of hexavalent chromium from drainage wastewater: a laboratory and field study. International Journal of Environmental Science and Technology. 22(7). 5211–5226. 1 indexed citations
3.
El‐Mossalamy, E.H., et al.. (2023). Method Development and Validation for Estimation of Vonoprazan by RP-HPLC method in bulk and tablets dosage form. Egyptian Journal of Chemistry. 0(0). 0–0. 7 indexed citations
4.
El-Sayed, Gamal O., et al.. (2021). Determining Cadmium Activities and Predicting Solid- Phases Which Control Its solubility in the Soil irrigated with Sewage Water, in Egypt. Egyptian Journal of Chemistry. 0(0). 0–0. 1 indexed citations
5.
El-Sayed, Gamal O., et al.. (2021). Removal of Acid Blue 342 from Aqueous Solution by Fe2O3/Fe3O4 Magnetic Nanocomposite. Benha Journal of Applied Sciences. 6(6). 107–118. 1 indexed citations
6.
El-Sayed, Gamal O., et al.. (2017). Cu (II), Mn (II) and Zn (II) Adsorption with Modified Grafted Cellulose from Aqueous Solution. 4(1). 61–69. 1 indexed citations
7.
El-Sayed, Gamal O., et al.. (2017). Decolorization and degradation of sunset yellow in aqueous solutions by advanced Fenton oxidation. 4(1). 18–23. 6 indexed citations
8.
El-Sayed, Gamal O., et al.. (2017). Acrylamide grafting with Maltodextrin for adsorption of hazardous water pollutants Cu(II), Co(II) and Cr(III). 4(4). 318–328. 2 indexed citations
9.
Borai, Ε. H., et al.. (2015). Template polymerization synthesis of hydrogel and silica composite for sorption of some rare earth elements. Journal of Colloid and Interface Science. 456. 228–240. 38 indexed citations
10.
El-Sayed, Gamal O., et al.. (2014). Photocatalytic Degradation of Metronidazole in Aqueous Solutions by Copper oxide nanoparticles. 1(4). 102–110. 26 indexed citations
11.
El-Sayed, Gamal O.. (2014). Electrochemical Decolorization of Maxilon Red GRL Textile Dye. International Research Journal of Pure and Applied Chemistry. 4(4). 402–416. 11 indexed citations
12.
El-Sayed, Gamal O., et al.. (2014). Assessment of activated carbon prepared from corncob by chemical activation with phosphoric acid. Water Resources and Industry. 7-8. 66–75. 142 indexed citations
13.
El-Sayed, Gamal O., et al.. (2013). Batch Adsorption of Maxilon Red GRL from Aqueous Solution by Natural Sugarcane Stalks Powder. 2013. 1–8. 13 indexed citations
14.
Abdel‐Tawwab, Mohsen, et al.. (2012). Effects of dietary protein levels and environmental zinc exposure on the growth, feed utilization, and biochemical variables of Nile tilapia,Oreochromis niloticus(L.). Toxicological & Environmental Chemistry Reviews. 94(7). 1368–1382. 18 indexed citations
15.
El-Sayed, Gamal O., et al.. (2011). Removal of Basic Dyes from Aqueous Solutions by Sugar Can Stalks. Advances in Applied Science Research. 2(4). 5 indexed citations
16.
El-Sayed, Gamal O.. (2010). Removal of Water Hardness by Adsorption on Peanut Hull. 5(1). 47–55. 2 indexed citations
17.
El-Sayed, Gamal O., H.A. Dessouki, & Suzan S. Ibrahim. (2010). Adsorptive Removal of Cr(VI) from Aqueous Solutions on Sawdust. 5(5). 677–685. 1 indexed citations
18.
El-Sayed, Gamal O., et al.. (2009). Adsorptive voltammetric determination of nimesulide at glassy carbon electrode. Latin American Journal of Pharmacy. 7 indexed citations
19.
El-Sayed, Gamal O. & Yousry M. Issa. (1997). Polarographic Investigation of Co(II), Ni(II) and Zn(II) Complexes With Procaine. Analytical Letters. 30(12). 2279–2288.
20.
Amin, Alaa S., Gamal O. El-Sayed, & Yousry M. Issa. (1995). Application of Alizarine Derivatives as Chromogenic Reagents for the Spectrophotometric Determination of Some Sulfa Drugs. Microchemical Journal. 51(3). 367–373. 9 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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