King Saud University

Awatif Ahmed Hendi

Manal Ahmed Gasmelseed Awad

Khalid Mustafa Osman Ortashi

Promy Virk

Mai Abdelrahman Elobeid Wagealla

Amel Laref

Rabia Qindeel

Nada Elzain Eisa

Ali Aldalbahi

Manal Ahmed Awad

Wadha Khalaf Alenazi

Khaled M Ortashi

Dina Wafiq Awad Soliman

Shaza Mohamed Adel Al-Massarani

Hany Mohamed Yehia

Rabab Abd El Moneim Khalil El Dib

Hatem Salama Mohamed Ali

Taieb Aouak

Nagwa Mohamed Mohamed Amin Aref

Mohamed Fekry Serag El-Din

Noura Saleem Aldosari

Sarah Saleh Abdulla Alsaif

Mohamed Mahmoud Hafez Ahmed

Zeinab Korany Mohamed Hassan

Nawal Ahmad Madkhali

Mai Abdelrahman Elobeid

Nouf Abdullah Mureet Al-Ghamdi

Lulwah Saleh Mohammed Al-Hassan

Amnah El-Enazy

Ahmed Sameer Ahmed Hendi

Abeer Ramadan Mohamed Abdelaziz

Abdulhakeem Abdulmuhseen Alahmed

Nouf Abdallah Mureet Al-Ghamdi

Reema Abdullah Alnamlah

Lulwah Saleh Mohammed Al Hassan

Nada Mohammed Merghani

Moudi Abdullah Rashed Alwehaibi

Saba Ameen Al-Adeemy

Waseem Sharaf Shamsan Saeed

Noorah Abdulaziz Othman Alkubaisi

Jamilah Hamed Alshehri

Amnah Bader Alanazi

Manal Mohammed Alkhulaifi

Batool Ali Marzouq Alzhrani

Hajar Abdullah Aldakhil

Fatimah Yahya Mohammad Al-Abbas

Lena Jassim

Nada E Eisa

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

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 flexible solar panel includes a polymer matrix and a plant extract incorporated in the polymer matrix. The plant extract can be an extract of chard (subsp.) including an organic dye. The plant extract can include chloroplasts. The polymer matrix may be formed from either poly(vinyl alcohol) or polystyrene. The flexible solar panel can be green.

The method of producing eggshell-derived nanoparticles may include steps of adding eggshell powder to methanol to form a solution; adding the solution dropwise to boiling water under ultrasonic conditions; incubating the resulting solution under continuous stirring at 200-800 rpm; and drying the resulting solution to obtain the eggshell-derived nanoparticles. The method produces nanoparticles of between 5 and 100 nm. Cytotoxicity testing shows that the nanoparticles exhibit anticancer activity against human breast cancer and lung cancer cell lines.

Method of producing eggshell-derived nanoparticles

The method of producing silver nanoparticles using red sand may include the steps of adding red sand to water, mixing the red sand in the water, removing a supernatant from the red sand in water mixture after the mixture has settled, adding sodium hydroxide to the supernatant to form an alkaline solution, adding silver nitrate (AgNO) to the solution, and isolating a precipitated reaction product including the silver nanoparticles. The silver nanoparticles produced according to this method have antibacterial activity, whether used alone or in combination with standard antibiotics.

Method of producing silver nanoparticles using red sand

A method of fabricating probiotics nanowhiskers using cheese comprises cutting and grinding cheese to produce cheese powder; mixing the cheese powder with sulfuric acid to produce a solution; stirring the solution to produce a stirred solution; and filtering the stirred solution to produce the probiotics nanowhiskers. The fabricated probiotics nanowhiskers possess antioxidant, anti-inflammatory, antitumor, and antimicrobial properties. The probiotics nanowhiskers may reduce cadmium concentration in a patient's liver. The probiotics nanowhiskers may also ameliorate the oxidative stress assessed as a decrease in the serum MDA levels in a patient.

Fabrication of probiotics nanowhiskers using cheese

A method of producing silica nanoparticles using sand can include mixing white sand with HSOand HPOto form a mixture. The mixture can be stirred in an ice bath. KMnOcan then be added to the mixture while maintaining the temperature of the mixture below 5&#xb0; C. The resulting suspension can be reacted for about 3 hours to about 5 hours on ice. The suspension is stirred in an ice bath and then maintained in a water bath at a temperature of 40&#xb0; C. for about 90 minutes to about 120 minutes. Afterwards, the temperature is adjusted to and maintained at 98&#xb0; C. for another period of about 90 minutes to about 120 minutes while adding water. HOcan be added to the suspension after adding the water to produce a reaction product with a precipitate. The reaction product can then be dried and calcinated to provide the silica nanoparticles.

Method of producing silica nanoparticles using sand

A method of preparing probiotic nanoparticles can include dissolving formulated probiotics in methanol, spraying the methanol solution into boiling water under ultrasonic conditions to provide a sonicated solution, and stirring the sonicated solution to obtain probiotic nanoparticles. The probiotic nanoparticles may be cluster or rod-shaped. The probiotic nanoparticles may be administered to a subject to reduce oxidative stress or to treat diseases associated with oxidative stress.

Synthesis of probiotic nanoparticles

A method of synthesizing zinc oxide nanoparticles includes preparing a liquid extract of, dissolving zinc salt in the liquid extract to provide an extract with zinc salt, adding a base to the extract with zinc salt to form a precipitate including zinc oxide nanoparticles. The method overcomes the drawbacks associated with prior chemical methods of synthesizing nanoparticles, while providing increased yield of the nanoparticles.

Synthesis of zinc oxide nanoparticles usingextract

Synthesis of titanium dioxide (TiO) nanoparticles (NPs) includes mixing(Maharayb) grass extract with Titanium (IV) isopropoxide (TTIP). The synthesis is simple and occurs at a rapid rate. The synthesized TiOnanoparticles can be effective in degrading Rhodamine B dye under UV light irradiation. Accordingly, the TiOnanoparticles can be useful in purifying drinking water.

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Doum nanoparticles can be synthesized by drying Doum fruit, reducing the dried Doum fruit to a powder or flour, and subjecting the powder to acid hydrolysis or alcohol hydrolysis to provide Doum nanoparticles. The Doum nanoparticles can be used as a food preservative. When compared to bulk Doum particles, the Doum nanoparticles can provide substantially increased antibacterial activity.

The synthesis of a silver-PMMA nanocomposite film includes mixing an aqueous extract of-(also known asand fenugreek) seeds with an aqueous solution of silver nitrate, thereby reducing the silver ions to silver metal nanoparticles. A solution of the silver nanoparticles is added to a solution of PMMA [poly (methyl methacrylate)] in N'N-dimethylformamide (DMF) with stirring at 90&#xb0; C. A light brown solution of silver colloids develops, which is cast in a glass plate and the DMF is evaporated at room temperature, leaving a silver-PMMA nanocomposite film. Testing on water shows the silver-PMMA nanocomposite film prevents or inhibits growth of microbes, suggesting use as an antimicrobial or antibacterial agent, e.g., in water purification.

Synthesis of silver-PMMA nanocomposite film

Synthesis of titanium dioxide nanoparticles using() herbal extracts may be achieved by mixing Titanium (IV) isopropoxide (TTIP) withextracts. Theherbal extracts may be extracts obtained using boiled water. The TTIP may be mixed with theextract at a ratio of 2:1. The resulting paste may be heated and pounded into a powder. The powder may then be calcinated in a muffle furnace, producingtitanium dioxide nanoparticles. Thetitanium dioxide nanoparticles may be efficient photocatalysts.

The synthesis of a silver-PMMA nanocomposite film using herbal extract includes mixing an aqueous extract ofbuds with an aqueous solution of silver nitrate, thereby reducing the silver ions to silver metal nanoparticles. A solution of the silver nanoparticles is added to a solution of PMMA [poly (methyl methacrylate)] in N'N-dimethylformamide (DMF) with stirring at 80&#xb0; C. A brown solution of silver colloids develops, which is cast in a glass plate and the DMF is evaporated at room temperature, leaving a silver-PMMA nanocomposite film. Testing on water shows the silver-PMMA nanocomposite film prevents or inhibits growth of microbes, suggesting use as an antimicrobial or antibacterial agent, e.g., in water purification. In addition, testing by disc diffusion againstandshowed zones of inhibition, also suggesting use as an antimicrobial or antibacterial agent.

Synthesis of silver-PMMA nanocomposite film using herbal extract

The green synthesis of a reduced graphene oxide (rGO) silica (SiO) nanocomposite usingseed extract includes mixing a quantity of carbon source in an acid solution while stirring to obtain a solution; adding a first oxidant gradually into the solution to oxidize the soot and obtain a first suspension; stirring the first suspension while maintaining a temperature of the suspension to about 35&#xb0; C.; adding plant seeds extract to the first suspension while raising the temperature of the suspension to about 60&#xb0; C.; adding a second oxidant to the suspension to form the reduced graphene oxide nanoparticles; isolating the reduced graphene oxide nanoparticles by centrifugation; suspending the reduced graphene oxide nanoparticles in water; adding a solution comprising tetraethyl orthosilicate (TEOS), concentrated aqueous ammonia solution and a plant seeds extract under ultrasonication; and increasing the temperature to about 90&#xb0; C. to form reduced graphene oxide-silicon dioxide nanocomposite suspension.

Growing community of inventors

Riyadh, Saudi Arabia

Awatif Ahmed Hendi