Browsing by Author "Al Easa, Hala Sultan"
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Natural Dyes in Cyanide and Anion Sensing
Hijji, Yousef; Al Easa, Hala Sultan; AbdelRasoul, Mahmoud ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Cyanide is one of anions of concern due to its high toxicity. It causes death at a low dosage (2.6 mM) and the allowable level should be lower than 1.9 mmolar according to World health Organization (WHO). Cyanide contamination ... -
Phospholipid Fatty Acids Compositions of Sponges from Qatar I- Haplosclerida
Njinkoue, Jean-Michel; Barnathan, Gilles; Kornprobst, Jean-Michel; Al-Easa, Hala Sultan Saif; Al-Muftah, Abdulrahman; Vacelet, Jean... more authors ... less authors ( Qatar University , 2006 , Article)The phospholipid fatty acid contents of six Haplosclerida sponges collected along Qatari ;ts, Arabian Gulf, were identified by coupling GC-MS experiments. More than hundred of rated and unsaturated fatty acids have been ... -
Two new sponge species (Demospongiae: Chalinidae and Suberitidae) isolated from hyperarid mangroves of Qatar with notes on their potential antibacterial bioactivity.
Giraldes, Bruno Welter; Goodwin, Claire; Al-Fardi, Noora A A; Engmann, Amanda; Leitão, Alexandra; Ahmed, Asma A; Ahmed, Kamelia O; Abdulkader, Hadil A; Al-Korbi, Halah A; Al Easa, Hala Sultan Saif; Ahmed Eltai, Nahla O; Hanifi-Moghaddam, Pejman... more authors ... less authors ( Public Library of Science , 2020 , Article)This study presents the taxonomic description of two new sponge species that are intimately associated with the hyperarid mangrove ecosystem of Qatar. The study includes a preliminary evaluation of the sponges' potential ...