摘要:
A rapid method for the separation of nanoparticles having as few as one ligand attached thereto has been developed. The method relies on the size exclusion separation of a population of nanoparticle-ligand complexes having a narrow uniform size distribution. Ligands are typically biopolymers, functionalized to bind to other nanoparticles for the construction of geometric nanostructures.
摘要:
Peptides have been identified that bind with high affinity to hair, skin, and nails. Peptide-based hair conditioners, hair colorants, skin conditioners, skin colorants, and nail colorants based are described. The peptide-based hair conditioners and hair colorants consist of a hair-binding peptide coupled to a hair conditioning agent or a coloring agent, respectively. The peptide-based skin conditioners and skin colorants consist of a skin-binding peptide coupled to a skin conditioning agent or a colorant, respectively. The peptide-based nail colorants consist of a nail-binding peptide coupled to a coloring agent. In all these compositions, the peptide may be directly coupled to the active agent or the coupling may be via a spacer. Personal care compositions containing these peptide-based conditioners and colorants are also described.
摘要:
Peptides have been identified that bind to oral surfaces such as teeth and gums. Peptide based oral care reagents have been created by couple such peptides to oral care benefit agents such as whiteners.
摘要:
The invention provides new hair colorant and cosmetic compositions comprising carbon nanotubes that have either been chemically functionalized or physically modified to increase their affinity for hair.
摘要:
The disclosure provides a sunscreen formulation comprising a peptide-based metal oxide sunscreen agent, such as titanium dioxide nanoparticles, and a fluid vehicle.
摘要:
Peptides have been identified that bind with high affinity to body surfaces, such as, hair, skin, nails, teeth, gums, corneal tissue, and oral cavity surfaces. Peptide-based body surface reagents formed by coupling a body surface binding peptide to a benefit agent are described. The peptide-based body surface reagents include peptide-based hair conditioners, hair colorants, skin conditioners, skin colorants, nail colorants, and oral care reagents. The peptide-based hair conditioners and hair colorants are comprised of a hair-binding peptide coupled to a hair conditioning agent or a coloring agent, respectively. The peptide-based skin conditioners and skin colorants are comprised of a skin-binding peptide coupled to a skin conditioning agent or a colorant, respectively. The peptide-based nail colorants are comprised of a nail-binding peptide coupled to a coloring agent. The peptide-based oral care reagents are comprised of an oral cavity surface-binding peptide coupled to an oral care benefit agent. In all these compositions, the peptide may be directly coupled to the active agent or the coupling may be via a spacer. Personal care compositions containing these peptide-based body surface reagents are also described.
摘要:
A rapid method for the separation of nanoparticles having as few as one ligand attached thereto has been developed. The method relies on the size exclusion separation of a population of nanoparticle-ligand complexes having a narrow uniform size distribution. Ligands are typically biopolymers, functionalized to bind to other nanoparticles for the construction of geometric nanostructures.
摘要:
This invention relates to a process that uses Surface Atom Transfer Radical Polymerization (SATRP) to grow thin polyethylene glycol alkyl acrylate (PEGAA) polymer film gradients on the moiety accepting surface of a substrate. This invention also relates to a method for producing thin PEGAA polymer film gradients having specific surface functionalities, a thickness ranging from about 0.5 nm to about 5000 nm, and a polymer chain density ranging from 0.1 to 100% surface coverage.
摘要:
Peptides have been identified that bind to tooth enamel. Compositions and methods comprising peptide-based oral care reagents having at least one tooth enamel-binding peptide and an oral care benefit agent are provided to adhere the benefit agent to the oral surface.
摘要:
Peptides have been identified that bind with high affinity to hair, skin, and nails. Peptide-based hair conditioners, hair colorants, skin conditioners, skin colorants, and nail colorants are described. The peptide-based hair conditioners and hair colorants consist of a hair-binding peptide coupled to a hair conditioning agent or a coloring agent, respectively. The peptide-based skin conditioners and skin colorants consist of a skin-binding peptide coupled to a skin conditioning agent or a colorant, respectively. The peptide-based nail colorants consist of a nail-binding peptide coupled to a coloring agent. In all these compositions, the peptide may be directly coupled to the active agent or the coupling may be via a spacer. Personal care compositions containing these peptide-based conditioners and colorants are also described.