King Saud University

Manal Ahmed Gasmelseed Awad

Khalid Mustafa Osman Ortashi

Awatif Ahmed Hendi

Promy Virk

Ali Aldalbahi

Shaza Mohamed Adel Al-Massarani

Mai Abdelrahman Elobeid Wagealla

Manal Fawzy Elkhadragy

Hany Mohamed Yehia

Rabab Abd El Moneim Khalil El Dib

Hatem Salama Mohamed Ali

Amel Laref

Reem Atta Alajmi

Noura Saleem Aldosari

Mohamed Fekry Serag El-Din

Shaykha Mohammed Alzahly

Rabia Qindeel

Ali Ali El-Gamal

Dina Mahmoud Metwally Hasanin

Ali Ali Hasan Elgamal

Ebtesam Mohammed Al Olayan

Atheer Mohammed Asiri

Bushra Ibarahim Alabdullah

Dina Wafiq Awad Soliman

Faten Nasser Alsaqabi

Raneem Aldawish

Shorouq Mohsen Alsaggaf

Reem Hamad Alshathri

Leen Abdullah Aldwihi

Mai Abdelrahman Elobeid

Zainah Ali Alqahtani

Raghad Alammari

Wadha Khalaf Alenazi

Sarah Saleh Abdulla Alsaif

Hessa Abdullah Aljasser

Khloud Ibrahim Bin Shoqiran

Mohamed Mahmoud Hafez Ahmed

Zeinab Korany Mohamed Hassan

Wafa Abdullah Al-Megrin

Ibrahim Abdullah Barakat

Amany Zein Elabedein Mahmoud Elshahidy

Hind Ali Abdullah Alshehri

Nadin Mohamed Moubayed

Taieb Aouak

Nada Elzain Eisa

Seham Soliman Alterary

Mohamed Saleh Alamri

Muzzammil Iqbal Siddiqui

Nawal Ahmad Madkhali

Moudi Abdullah Rashed Alwehaibi

Jamilah Hamed Alshehri

Fatimah Yahya Mohammad Al-Abbas

Othman A Al-Shabanah

Lulwah Saleh Mohammed Al-Hassan

Nouf Abdullah Mureet Al-Ghamdi

Ahmed Sameer Ahmed Hendi

Shoog Fahad Abdullah Algannam

Abdulhakeem Abdulmuhseen Alahmed

Alhanouf Nasser Abdulaziz Alabdan

Nouf Abdallah Mureet Al-Ghamdi

Shaden Abdullah Alharbi

Lulwah Saleh Mohammed Al Hassan

Hajar Abdullah Aldakhil

Lena Jassim

Manal Mohammed Alkhulaifi

Saba Ameen Al-Adeemy

Abeer Ramadan Mohamed Abdelaziz

Ruba Ali Abdullrahman Almoghim

Atheer Abdulrahman Al-Mohssen

Waseem Sharaf Shamsan Saeed

Munirah Abdulaziz Abdullah Alkathri

Raghad Abdulrahman Alrashed

Ali Ali Hasan El Gamal

Amnah El-Enazy

Nada Mohammed Merghani

Bedoor Ali Al-Ateeq

Taghrid Saad Omar Alomar

Reema Abdullah Alnamlah

Najla Saad Almasoud

Adnan Jathlan Al-Rehaily

Amnah Bader Alanazi

Batool Ali Marzouq Alzhrani

Ali Ali Hassan Elgamal

Rabab El Dib

Omer Ahmed Basudan

Encapsulated resveratrol (RSV) nanoparticles having a resveratrol core, a gum arabic shell, and a polyvinyl alcohol coating over the gum arabic shell. In an embodiment, an RSV:gum arabic:polyvinyl alcohol (PVA) ratio in the encapsulated nanoparticles is about 1:5:5 (w/w/w). The encapsulated RSV nanoparticles can have an average size ranging from about 195 nm to about 210 nm.

Encapsulated resveratrol (RSV) nanoparticles

Bee venom nanoparticles and methods of synthesizing bee venom nanoparticles are provided. The bee venom nanoparticles may be synthesized by drying bee venom, suspending the dried bee venom in a solvent to form a first bee venom solution, spraying the first bee venom solution into boiling water under ultrasonic conditions to form a bee venom solution including the bee venom nanoparticles, stirring the bee venom solution including the bee venom nanoparticles, and freeze-drying the bee venom solution. The resulting nanoparticles may be used in pharmaceutical compositions, and may be useful for their antimicrobial activities.

Bee venom nanoparticles

A method of synthesizing copper oxide nanoparticles includes preparing a liquid extract of, dissolving copper salt in the liquid extract to provide a solution with copper nanoparticles, adding a base to the solution with copper nanoparticles to form a precipitate including copper oxide nanoparticles. Copper oxide nanoparticles prepared according to the method are effective photocatalysts for degrading organic dyes and antibacterial agents and exhibit anticancer activities.

Synthesis of copper oxide nanoparticles

The flexible dye-sensitized solar panel with an organic chromophore is formed from an organic chromophore dye in a polymer matrix. The organic chromophore dye is extracted from chard (subsp.). The polymer matrix may be formed from either poly(vinyl alcohol) or polystyrene. The flexible dye-sensitized solar panel with an organic chromophore is made by preparing a solution of the selected polymer in the dye extracted from thesubsp.. The solution is coated on a glass plate and dried to form a thin film. The thin flexible film is removed from the plate, forming the flexible dye-sensitized solar panel with an organic chromophore.

Flexible solar panel

The copper oxide nanoparticles synthesized using Rhatany root extract involves preparing the Rhatany root extract by adding powdered Rhatany roots to boiling water, allowing the mixture to soak overnight, and removing any solid residue by filtering to obtain the aqueous extract. The copper oxide nanoparticles are prepared by mixing equal volumes of the aqueous Rhatany root extract and 0.1 M aqueous copper sulfate, heating the mixture at 80&#xb0; C. for 40 minutes, and adding 1 M sodium hydroxide dropwise to the mixture to precipitate CuO. The precipitate is removed by centrifuge, washed with ethanol, dried, and calcined at 400&#xb0; C. for 4 hours to obtain the copper oxide nanoparticles. The resulting nanoparticles proved effective in degrading wastewater dyes, showed anticancer activity against human cervical cancer by cell viability assay, and showed antibacterial activity against various strains of bacteria by agar diffusion.

Copper oxide nanoparticles synthesized usingroot extract

Thenanoparticles may be synthesized by harvestingleaves, drying theleaves, powdering the driedleaves, suspending the powderedleaves in a solution, and spraying the solution into boiling water under ultrasonic conditions to obtainnanoparticles. Thenanoparticles may be encapsulated by dissolving thenanoparticles and gum olibanum in ethanol to produce a mixture, injecting the inert organic phase of the mixture into an aqueous solution containing PVA, and homogenizing the aqueous solution. Thenanoparticles may be useful in preventing the growth of cancer cells and in treating diabetes by inhibiting &#x3b1;-glucosidase and/or &#x3b1;-amylase activity.

nanoparticles

The copper oxide nanoparticles synthesized usingroot extract involves preparing theroot extract by adding powderedroots to boiling water, allowing the mixture to soak overnight, and removing any solid residue by filtering to obtain the aqueous extract. The copper oxide nanoparticles are prepared by mixing equal volumes of the aqueousroot extract and 0.1 M aqueous copper sulfate, heating the mixture at 80&#xb0; C. for 40 minutes, and adding 1 M sodium hydroxide dropwise to the mixture to precipitate CuO. The precipitate is removed by centrifuge, washed with ethanol, dried, and calcined at 400&#xb0; C. for 4 hours to obtain the copper oxide nanoparticles. The resulting nanoparticles proved effective in degrading wastewater dyes, showed anticancer activity against human cervical cancer by cell viability assay, and showed antibacterial activity against various strains of bacteria by agar diffusion.

The synthesis of ursolic acid nanoparticles includes dissolving ursolic acid powder in methanol, boiling water for five minutes, and adding the methanol solution to the boiled water dropwise at a flow rate of 0.1-0.3 ml/min under ultrasonic conditions. After sonication for 20 minutes, the contents are stirred for about 15 minutes, and then dried. Particle size distribution studies and TEM micrographs confirm the resulting product comprises nanoparticles. In vitro testing confirms the ursolic acid nanoparticles exhibit greater anticancer activity than conventional-size particles, and that the nanoparticles exhibit antimicrobial effect against gram positive and gram negative bacteria, as well as fungi.

Synthesis of ursolic acid nanoparticles

The method of producing zinc oxide nanoparticles (ZnO NPs) using red sand includes mixing red sand with water to form an aqueous suspension of red sand, removing the supernatant from the suspension, centrifuging the supernatant and retaining a second supernatant from the centrifuged suspension, dissolving a solution of zinc nitrate in the second supernatant to form a precursor solution, and adding 1M NaOH dropwise to the precursor solution to precipitate the zinc oxide nanoparticles. The precipitate may be washed, dried and calcined to provide the red sand synthesized ZnO NPs. The red sand synthesized ZnO NPs have photocatalytic activity and can be used, for example, to degrade organic dyes in aqueous environments.

Method of making zinc oxide nanoparticles using red sand

Mangosteen nanoparticles and methods of synthesizing Mangosteen nanoparticles are provided. The Mangosteen nanoparticles may be synthesized by drying Mangosteen,fruit, grinding the dried Mangosteen to form powdered Mangosteen, suspending the powdered Mangosteen in a solvent to form a first Mangosteen solution, spraying the Mangosteen solution into boiling water under ultrasonic conditions to form a second Mangosteen solution, resting the second Mangosteen solution at room temperature (about 20&#xb0; C.), and freeze-drying the second Mangosteen solution to obtain Mangosteen nanoparticles. The drying step may include either air-drying or freeze-drying the Mangosteen. The Mangosteen fruit peel may be used in the drying step instead of the inner Mangosteen fruit. The resulting nanoparticles may be used in pharmaceutical compositions, and may be useful for their antioxidant and antibacterial activities.

Mangosteen nanoparticles

Growing community of inventors

Riyadh, Saudi Arabia

Manal Ahmed Gasmelseed Awad