King Saud University

Khalid Mustafa Osman Ortashi

Manal Ahmed Gasmelseed Awad

Awatif Ahmed Hendi

Promy Virk

Amel Laref

Ali Aldalbahi

Mai Abdelrahman Elobeid Wagealla

Rabia Qindeel

Hany Mohamed Yehia

Hatem Salama Mohamed Ali

Shaykha Mohammed Alzahly

Mai Abdelrahman Elobeid

Wadha Khalaf Alenazi

Dina Wafiq Awad Soliman

Manal Fawzy Elkhadragy

Shaza Mohamed Adel Al-Massarani

Rabab Abd El Moneim Khalil El Dib

Taieb Aouak

Noura Saleem Aldosari

Mohamed Fekry Serag El-Din

Ebtesam Mohammed Al Olayan

Nada Elzain Eisa

Sarah Saleh Abdulla Alsaif

Mohamed Mahmoud Hafez Ahmed

Zeinab Korany Mohamed Hassan

Nawal Ahmad Madkhali

Lena Jassim

Fatimah Yahya Mohammad Al-Abbas

Manal Mohammed Alkhulaifi

Abeer Ramadan Mohamed Abdelaziz

Ahmed Sameer Ahmed Hendi

Abdulhakeem Abdulmuhseen Alahmed

Nada Mohammed Merghani

Saba Ameen Al-Adeemy

Taghrid Saad Omar Alomar

Waseem Sharaf Shamsan Saeed

Najla Saad Almasoud

Reema Abdullah Alnamlah

Amnah Bader Alanazi

Batool Ali Marzouq Alzhrani

Moudi Abdullah Rashed Alwehaibi

Jamilah Hamed Alshehri

Hajar Abdullah Aldakhil

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 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

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 synthesis of bio graphene may include mixing carrageenan with a bio waste solution, adding graphene oxide to produce a mixture, sonicating the mixture, and evaporative-casting the mixture to produce bio graphene film. In an embodiment, the carrageenan may be &#x3c4;-carrageenan. In an embodiment, the bio waste solution may include fish scales.

Method of synthesis of bio graphene film

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 bio buckypaper synthesized with fish scales may be manufactured by mixing carrageenan with a bio waste solution to provide a first mixture, adding carbon nanotubes to the first mixture produce a second mixture, sonicating the second mixture, and evaporative-casting the second mixture to produce the bio buckypaper. In an embodiment, the carrageenan may be &#x3c4;-carrageenan. In an embodiment, the carbon nanotubes may be single walled carbon nanotubes (SWCNTs) or multi-walled carbon nanotubes (MWCNTs). In an embodiment, the bio waste solution may be derived from fish scales.

Bio buckypaper synthesized with fish scales

The watermelon seed nanoparticles may be synthesized by dissolving powdered watermelon seeds in a solvent to produce a first mixture, adding the first mixture dropwise to boiling water under ultrasonic conditions to produce a second mixture, sonicating the second mixture and drying the second mixture to produce watermelon seed nanoparticles. In an embodiment, the watermelon seeds may beseeds. In an embodiment, the watermelon seed nanoparticles may be included in a pharmaceutical composition, such as an antimicrobial or anti-cancer composition.

Method of synthesizing watermelon seed particles

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

The mustard seed nanoparticles may be synthesized by washing mustard seeds, drying and crushing the washed mustard seeds, extracting the crushed mustard seeds to produce a mustard seed extract, spraying the mustard seed extract into boiling water, sonicating the mustard seed extract and boiling water mixture, and centrifuging the mustard seed extract and boiling water mixture to obtain mustard seed nanoparticles. The mustard seed nanoparticles may be used in a pharmaceutical composition.

Synthesis of mustard seed nanoparticles

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 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.

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Riyadh, Saudi Arabia

Khalid Mustafa Osman Ortashi