Targeting the vector of arboviruses Aedes aegypti with nanoemulsions based on essential oils: a review with focus on larvicidal and repellent properties

• Laryssa Ferreira do Nascimento Silva,
• Douglas Dourado,
• Thayse Silva Medeiros,
• Mariana Alice Gonzaga Gabú,
• Maria Cecilia Queiroga dos Santos,
• Daiane Rodrigues dos Santos,
• Mylena Lemos dos Santos,
• Gabriel Bezerra Faierstein,
• Rosângela Maria Rodrigues Barbosa and
• Fabio Rocha Formiga

Beilstein J. Nanotechnol. 2025, 16, 1894–1913, doi:10.3762/bjnano.16.132

• . Against the Ae. aegypti vector, Duarte et al. (2024) developed NEs loaded with two monoterpenes, cymene and myrcene, and evaluated their larvicidal potential against L3 larvae [36]. The NEs showed significant lethality to Ae. aegypti larvae, with insecticidal activity equal to or greater than that of free

• Origanum vulgare essential oil, composed mainly of carvacrol, thymol, γ-terpinene, and p-cymene – monoterpenes widely present in species from the mediterranean and temperate regions of Asia [72][123]. The formulation was composed of EO, polysorbate 80 (surfactant), and purified water, and it was stabilized

• in the biosynthesis of monoterpenes [73][144]. The formulation was obtained by a low-energy method, presenting an average droplet diameter of 92.9 nm (±0.4), polydispersity index of 0.412 (±0.009), and zeta potential of −20.4 mV (±0.6). In larvicidal tests with fourth-instar larvae of Ae. aegypti for

When nanomedicines meet tropical diseases

• Eder Lilia Romero,
• Katrien Van Bocxlaer and
• Fabio Rocha Formiga

Beilstein J. Nanotechnol. 2024, 15, 830–832, doi:10.3762/bjnano.15.69

• important contribution to this thematic issue focused on development of nanoemulsions containing plant-based insecticides for vector control. In this work, Duarte and colleagues developed and characterized nanoemulsions encapsulating monoterpenes, which exhibited significant lethality against third-instar

Development and characterization of potential larvicidal nanoemulsions against Aedes aegypti

• Jonatas L. Duarte,
• Leonardo Delello Di Filippo,
• Anna Eliza Maciel de Faria Mota Oliveira,
• Rafael Miguel Sábio,
• Gabriel Davi Marena,
• Tais Maria Bauab,
• Cristiane Duque,
• Vincent Corbel and
• Marlus Chorilli

Beilstein J. Nanotechnol. 2024, 15, 104–114, doi:10.3762/bjnano.15.10

• , and immunity to resistance issues that plague conventional chemicals. However, the practical use of monoterpenes in insect control has been hampered by challenges including their poor solubility and stability in aqueous environments. In recent years, the application of nanotechnology-based

• involving Galleria mellonella larvae. Additionally, we investigated the insecticidal efficacy of monoterpenes against the mosquito Aedes aegypti, the primary dengue vector, via larval bioassay. Employing a low-energy approach, we successfully generated nanoemulsions. The cymene-based nanoemulsion exhibited

• avenue for overcoming the limitations associated with poor solubility and stability of monoterpenes. This study sheds light on the potential of the nanoemulsions as effective and environmentally friendly insecticides in the ongoing battle against mosquito-borne diseases. Keywords: colloidal stability

Green synthesis, characterization and catalytic activity of natural bentonite-supported copper nanoparticles for the solvent-free synthesis of 1-substituted 1H-1,2,3,4-tetrazoles and reduction of 4-nitrophenol

• Akbar Rostami-Vartooni,
• Mohammad Alizadeh and
• Mojtaba Bagherzadeh

Beilstein J. Nanotechnol. 2015, 6, 2300–2309, doi:10.3762/bjnano.6.236

• aromatics in the extract. Also, given the presence of monoterpenes such as thymol and carvacrol, these transitions are probably related to the mentioned compounds involved in the reduction process and formation of copper nanoparticles deposited on bentonite surface through π-electron interactions [17][21