Abstract: Novel composites as antibacterial agents having crystalline oxides (TiO2 and ZnO) combined with organoselenium compounds. The organoselenium aids in increasing the biosafety of the synthesized composite, which is characterized by different physicochemical techniques. Additionally, XRD indicates that the oxide part of the introduced composite is a mixture of TiO2 as a rutile structure and ZnO as a hexagonal structure. The results confirm the successful grafting of the organoselenium compound onto the mixed oxide nanoparticles. Besides, the SEM and TEM morphology of the fabricated composites was found as heterogeneous particles that are formed as micro flowers or nanosheets according to the specific organoselenium compound used. The formed composites have a promising inhibition zone against many microorganisms and can be effective as novel antibacterial agents.

Abstract: Cellulose acetate, silver-vanadate, and/or gadolinium trioxide wound dressing nano-films. In particular, wound dressings comprising a cellulose acetate film comprising cellulose acetate and silver vanadate and/or gadolinium trioxide nanoparticles within a cellulose acetate matrix. Different weights of these substances can be chosen during manufacture to achieve a certain morphological appearance. These multifunctional wound dressing films could be a promising and potential option for wound healing.

Abstract: Cellulose acetate, silver-vanadate, and/or gadolinium trioxide wound dressing nano-films. In particular, wound dressings comprising a cellulose acetate film comprising cellulose acetate and silver vanadate and/or gadolinium trioxide nanoparticles within a cellulose acetate matrix. Different weights of these substances can be chosen during manufacture to achieve a certain morphological appearance. These multifunctional wound dressing films could be a promising and potential option for wound healing.

Abstract: A nanocomposite is provided, the nanocomposite comprising collagen nanoparticles loaded with theophylline. The nanocomposite is generally spherical and can have an average particle diameter ranging from about 30 nm to about 40 nm. The collagen nanoparticles can be derived from a marine source, such as mullet fish. The nanocomposite can be useful for treating bronchial asthma.

Abstract: Novel organoselenium selective ligands are presented and designed to determine metal ions in a sample. These ligands are used as complexing agents in a dispersive liquid-liquid microextraction procedure of copper and zinc ions. The procedure has a shortened extraction time, minimal organic solvent types, and lower amounts of solvents, as well as easy operation and high enrichment efficiency.

Abstract: Cobalt and copper-doped nickel Cu/Co—Ni-ferrite nanoparticles having a general formula CuxCoxNi(1-x)Fe2O4 can be a catalyst for electrooxidation of methanol in direct methanol fuel cells (DMFC). The catalyst can be an efficient anode for DMFC in alkaline electrolytes. The Cu/Co—Ni-ferrite nanoparticles can have a sponge-like structure with irregular pores. A diameter of the Cu/Co—Ni-ferrite nanoparticles can range from about 8 nm to about 30 nm.

Abstract: Cobalt and copper-doped nickel Cu/Co—Ni-ferrite nanoparticles having a general formula CuxCoxNi(1-x)Fe2O4 can be a catalyst for electrooxidation of methanol in direct methanol fuel cells (DMFC). The catalyst can be an efficient anode for DMFC in alkaline electrolytes. The Cu/Co—Ni-ferrite nanoparticles can have a sponge-like structure with irregular pores. A diameter of the Cu/Co—Ni-ferrite nanoparticles can range from about 8 nm to about 30 nm.

Abstract: Novel organoselenium selective ligands are presented and designed to determine metal ions in a sample. These ligands are used as complexing agents in a dispersive liquid-liquid microextraction procedure of copper and zinc ions. The procedure has a shortened extraction time, minimal organic solvent types, and lower amounts of solvents, as well as easy operation and high enrichment efficiency.

Abstract: Cobalt and copper-doped nickel Cu/Co—Ni-ferrite nanoparticles having a general formula CuxCoxNi(1-x)Fe2O4 can be a catalyst for electrooxidation of methanol in direct methanol fuel cells (DMFC). The catalyst can be an efficient anode for DMFC in alkaline electrolytes. The Cu/Co—Ni-ferrite nanoparticles can have a sponge-like structure with irregular pores. A diameter of the Cu/Co—Ni-ferrite nanoparticles can range from about 8 nm to about 30 nm.

Abstract: Novel organoselenium selective ligands are presented and designed to determine metal ions in a sample. These ligands are used as complexing agents in a dispersive liquid-liquid microextraction procedure of copper and zinc ions. The procedure has a shortened extraction time, minimal organic solvent types, and lower amounts of solvents, as well as easy operation and high enrichment efficiency.

Abstract: Novel organoselenium selective ligands are presented and designed to determine metal ions in a sample. These ligands are used as complexing agents in a dispersive liquid-liquid microextraction procedure of copper and zinc ions. The procedure has a shortened extraction time, minimal organic solvent types, and lower amounts of solvents, as well as easy operation and high enrichment efficiency.

Abstract: Novel organoselenium selective ligands are presented and designed to determine metal ions in a sample. These ligands are used as complexing agents in a dispersive liquid-liquid microextraction procedure of copper and zinc ions. The procedure has a shortened extraction time, minimal organic solvent types, and lower amounts of solvents, as well as easy operation and high enrichment efficiency.

Abstract: Novel organoselenium selective ligands are presented and designed to determine metal ions in a sample. These ligands are used as complexing agents in a dispersive liquid-liquid microextraction procedure of copper and zinc ions. The procedure has a shortened extraction time, minimal organic solvent types, and lower amounts of solvents, as well as easy operation and high enrichment efficiency.

Abstract: Cobalt and copper-doped nickel Cu/Co—Ni-ferrite nanoparticles having a general formula CuxCoxNi(1-x)Fe2O4 can be a catalyst for electrooxidation of methanol in direct methanol fuel cells (DMFC). The catalyst can be an efficient anode for DMFC in alkaline electrolytes. The Cu/Co—Ni-ferrite nanoparticles can have a sponge-like structure with irregular pores. A diameter of the Cu/Co—Ni-ferrite nanoparticles can range from about 8 nm to about 30 nm.

Abstract: Provided are tetra nuclear distorted square anti-prism Dy (III) imine complexes, and their use in pharmaceutical and industrial applications. These complexes can be formed as a Schiff base-metal complex. The Schiff base-metal complex can comprise a Dy4L4ES2(H2O) H2O complex, wherein L is 2-Ethoxy-6-[(2-hydroxy-phenylimino)-methyl]-phenol; and ES is deprotonated 3-ethoxysalicylaldehyde.

Abstract: Provided are methods of preparing magnetite and akaganéite nanoparticles from steel slag, the nanoparticles produced therefrom, and methods of using the same as a raw material for wastewater treatment.

Abstract: A sand fixing agent derived from palm tree frond comprises poly-(acrylamide) grafted carboxymethyl cellulose and a carbon alkanal.

Abstract: A metal oxide nanocomposite including metal oxide nanoparticles distributed over a carboxymethyl cellulose (CMC) shell. The metal oxide nanoparticles include at least one metal oxide nanoparticle selected from nickel oxide nanoparticles and cobalt oxide nanoparticles. A working electrode can be modified with the metal oxide nanocomposite to provide a nanohybrid electrode. The nanohybrid electrode can be effectively used in urea fuel cells (UFCs) to achieve electrochemical oxidation of urea.