Abstract: The custard apple peel nanoparticles may be manufactured by extracting custard apple peels in a solvent, spraying the custard apple peel extracts into boiling water under ultrasonic conditions to produce a first mixture, sonicating the mixture, stirring the mixture, and drying the mixture to obtain custard apple peel nanoparticles. In an embodiment, the custard apple peel may be peel of Annona reticulata. In an embodiment, the custard apple peel nanoparticles may have improved antibacterial or antioxidant properties.

Abstract: The custard apple peel nanoparticles may be manufactured by extracting custard apple peels in a solvent, spraying the custard apple peel extracts into boiling water under ultrasonic conditions to produce a first mixture, sonicating the mixture, stirring the mixture, and drying the mixture to obtain custard apple peel nanoparticles. In an embodiment, the custard apple peel may be peel of Annona reticulata. In an embodiment, the custard apple peel nanoparticles may have improved antibacterial or antioxidant properties.

Abstract: The custard apple peel nanoparticles may be manufactured by extracting custard apple peels in a solvent, spraying the custard apple peel extracts into boiling water under ultrasonic conditions to produce a first mixture, sonicating the mixture, stirring the mixture, and drying the mixture to obtain custard apple peel nanoparticles. In an embodiment, the custard apple peel may be peel of Annona reticulata. In an embodiment, the custard apple peel nanoparticles may have improved antibacterial or antioxidant properties.

Abstract: The custard apple peel nanoparticles may be manufactured by extracting custard apple peels in a solvent, spraying the custard apple peel extracts into boiling water under ultrasonic conditions to produce a first mixture, sonicating the mixture, stirring the mixture, and drying the mixture to obtain custard apple peel nanoparticles. In an embodiment, the custard apple peel may be peel of Annona reticulata. In an embodiment, the custard apple peel nanoparticles may have improved antibacterial or antioxidant properties.

Abstract: The method for preparing metal nanoparticles includes preparing an extract of myrrh and mixing the extract with an aqueous solution including a metal salt. The mixture changes in color from light yellow to dark brown upon formation of nanoparticles. The extract of myrrh can be a water extract prepared by, for example, soaking a quantity of myrrh in water, filtering the soaked myrrh to obtain a filtered product, and then centrifuging the filtered product. The metal salt can be, for example, silver nitrate (AgNO3). The metal nanoparticles can be spherical, spheroidal, elongated spherical, rod, and/or faceted. The metal nanoparticles can be used to treat Leishmaniasis (lesions) caused by Leishmania major.

Abstract: A method of preparing metal nanoparticles using an extract of desert truffles (Terfeziaceae) includes providing an aqueous solution including a metal salt; and combining an extract of Terfeziaceae with the aqueous metal salt solution to produce the metal nanoparticles. The metal salt can be silver nitrate (AgNO3) and the metal nanoparticles can be silver nanoparticles. The metal nanoparticles can have a mean diameter in the range of from about 5 nm to about 100 nm. The silver nanoparticles can be used as an antimicrobial agent and/or an anti-parasitic agent.

Abstract: The method for preparing metal nanoparticles includes preparing an extract of myrrh and mixing the extract with an aqueous solution including a metal salt. The mixture changes in color from light yellow to dark brown upon formation of nanoparticles. The extract of myrrh can be a water extract prepared by, for example, soaking a quantity of myrrh in water, filtering the soaked myrrh to obtain a filtered product, and then centrifuging the filtered product. The metal salt can be, for example, silver nitrate (AgNO3). The metal nanoparticles can be spherical, spheroidal, elongated spherical, rod, and/or faceted. The metal nanoparticles can be used to treat Leishmaniasis (lesions) caused by Leishmania major.

Abstract: A method of preparing nanoparticles of date palm seeds comprises providing date seed powder; mixing the date seed powder with an acid solution to produce date palm seed nanoparticles; and isolating the date palm seed nanoparticles. A method of controlling the growth or proliferation of bacteria can include administering an effective amount of the date palm seed nanoparticles synthesized according to the present method to a site of bacterial activity.