Omnia Mohamed Helmy Mohamed Kamel
@nrc.sci.eg
Applied Organic Chemistry, Industrial Chemistry Research Institute
National Research Centre
RESEARCH INTERESTS
Control vectors of diseases, Physiology of parasites, Nanoparticles application
Scopus Publications
Scopus Publications
Kamel et al.
Egyptian Knowledge Bank
Ahmed E. Abdelhamid, M. Abdel Rafea, Magdi E. A. Zaki, Omnia M. H. M. Kamel, A. Amr, Mohamed R. El-Aassar, Samira A. Swelam, and Ahmed A. El-Sayed
Springer Science and Business Media LLC
Omnia Kamel and Reda Abdelhameed
Egypts Presidential Specialized Council for Education and Scientific Research
Shaimaa M. Farag, Moataz A. M. Moustafa, Adrien Fónagy, Omnia M. H. M. Kamel, and Doaa R. Abdel-Haleem
Springer Science and Business Media LLC
AbstractEffective mosquito repellents can limit the transmission of vector-borne diseases to humans. Consequently, there is an urgent need to develop mosquito control strategies that prioritize eco-friendly and cost-effective repellents. Essential oils (EOs) have enormous potential for mosquito repellency. Here, cinnamon, basil, eucalyptus, and peppermint EOs were investigated for adulticide and repellency properties against Culex pipiens as well on the oviposition behavior of gravid females from laboratory (lab test) and field (field test) populations. Cinnamon oil was an effective oviposition deterrent regardless of the population and had high adulticidal activity with toxicity index of 75.00% at 24 h of exposure, relative to deltamethrin. In addition, it exhibited effective repellency at 98.01% and 71.22% at 6.67 and 1.71 µl/cm2, respectively. Peppermint oil had the least adulticidal activity with toxicity index of 6.2% at 24 h, and it resulted in low repellency at 70.90% and 50.64% at 6.67 and 1.71 µl/cm2, respectively. On average, basil and eucalyptus oils showed some adulticidal efficiency, repellency, and oviposition deterrent activity. For all treatments, the oviposition deterrent index values of gravid females from natural populations (field test) were lower than those from lab-reared (lab test) females. Different ratios of monoterpenoids, phenylpropanoids, and fatty acids in the EOs tested likely account for the activity variations observed. Our results suggest cinnamon, basil, eucalyptus, and peppermint EOs, which are widely available, economical, and eco-friendly, with good potential for mosquito control strategies.
Omnia Kamel and Mostafa Mokhtar
Egypts Presidential Specialized Council for Education and Scientific Research
Omnia M.H.M. Kamel and Reda M. Abdelhameed
Egypts Presidential Specialized Council for Education and Scientific Research
Fortunately, numerous
Omnia M. H. M. Kamel et al.
Egypts Presidential Specialized Council for Education and Scientific Research
Shaimaa M. Farag et al.
Egypts Presidential Specialized Council for Education and Scientific Research
Eman Elgammal, Eman Ahmed, Omnia Kamel, and Heba Yehia
Egypts Presidential Specialized Council for Education and Scientific Research
Shaimaa M. Farag et al,
Egypts Presidential Specialized Council for Education and Scientific Research
Mosquitoes are well known for their impact on public health since they cause major health problems and are considered to be the most formidable cause of fatalities in the world, being responsible for the death of approximately 750,000 humans annually (Calzolari, 2016). In Egypt, Culex pipiens Linnaeus (Diptera: Culicidae), has been declared as a vector of several diseases (Abd El-Samie & Abd El-Baset, 2012; ElARTICLE INFO ABSTRACT Article History: Received: April 16, 2021 Accepted: April 27, 2021 Online: April 30, 2021 _______________
Shaimaa M. Farag, Mohamed A. Hussein, Soryia E. Hafez, Amany S. Khaled, Omnia M. Kamel, and Ola H. Zyaan
Egypts Presidential Specialized Council for Education and Scientific Research
Dipterous insects cause serious public health problems for both humans and animals (Linthicum, 2012). In Egypt, Culex pipiens (Diptera: Culicidae), has been investigated and declared as a vector of several diseases (El-Zayyat et al., 2017). It transmits Rift valley fever virus (Dodson et al., 2017), Japanese encephalitis (Chancey et al., 2015), Wuchereria bancrofti accredited for human lymphatic filariasis transmission (Joseph et al., 2011), and West Nile virus (Bassal et al., 2017). Culex pipiens was incriminated as the filarial vector in Egypt (El-Naggar et al., 2017) and has been recorded by all governorates without exception (Abdel-Shafi et al., 2016). Traditional insecticides were used to control mosquitoes (Killeen et al., 2017) but introduced problems in the environment by leaving undesirable residues in food, toxicological implications to human health, increased cost and handling hazards (Bonner and Alvanja, 2017). Flies have developed a certain level of resistance to most available insecticides ARTICLE INFO ABSTRACT Article History: Received: March 5, 2021 Accepted: March 28, 2021 Online: March 31, 2021 _______________
Ahmed A. El-Sayed, A. Amr, Omnia M. H. M. Kamel, Manal M. T. El-Saidi, and Ahmed E. Abdelhamid
Springer Science and Business Media LLC
Reda M. Abdelhameed, Omnia M. H. M. Kamel, A. Amr, João Rocha, and Artur M. S. Silva
American Chemical Society (ACS)
Waste swamps, stagnant water, and poor hygiene practices result in the proliferation of mosquitoes that may cause transmissible and infectious diseases such as malaria, typhoid, cholera, and Zika virus sickness. It has been shown that composites of the traditional natural fibers cotton, viscose, and linen and a Ti-bearing metal-organic framework, NH2-MIL-125, are very effective against mosquitoes in the absence of any conventional insecticides. In our study, prior to coating with NH2-MIL-125 crystals, the fabrics were modified with 3-glycidyloxypropyltrimethoxysilane. The composite materials were characterized by powder X-ray diffraction, UV-vis spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy with energy-dispersive X-ray spectroscopy analysis. The latter, in particular, has shown the uniform coating of the fabrics with NH2-MIL-125 crystals. The modified fabrics have excellent antimosquito properties, attracting and killing them.
Somia El-Maghraby, Galal A Nawwar, Reda FA Bakr, Nadia Helmy, and Omnia MHM Kamel
Medknow