Abstract: Amphiphilic peptide compounds comprising one or more epitope sequences for binding interaction with one or more corresponding growth factors, micellar assemblies of such compounds and related methods of use.

Abstract: The present invention relates to self-assembling membranes. In particular, the present invention provides self-assembling membranes configured for securing and/or delivering bioactive agents. In some embodiments, the self-assembling membranes are used in the treatment of diseases, and related methods (e.g., diagnostic methods, research methods, drug screening).

Abstract: Disclosed herein are novel peptide amphiphile molecules and compositions composed of a peptide sequence that non-covalently binds the growth factor TGF-?1. Also disclosed are methods of using these peptide amphiphiles to create a gel scaffold in situ that enhances articular cartilage regeneration when used in combination with microfracture. Significant improvement in tissue quality and overall O'Driscoll histological scores were observed in rabbits with full thickness articular cartilage defects treated with the TGF-binding peptide amphiphile. The gel can further serve as a delivery vehicle for recombinant TGF-?1 protein growth factor. Scaffolds that localize and retain chondrogenic growth factors may synergistically enhance cartilage repair when combined with microfracture, by inducing bone marrow mesenchymal stem cells into chondrogenic differentiation. This invention represents a promising new biomimetic approach to enhance current techniques of articular cartilage regeneration in the clinical setting.

Abstract: Disclosed herein is a completely synthetic cell-free therapy based on peptide amphiphile nanostructures designed to mimic the activity of vascular endothelial growth factor (VEGF), one of the most potent angiogenic signaling proteins. The VEGF-mimetic filaments disclosed herein were found to induce phosphorylation of VEGF receptors and induce pro-angiogenic behavior in endothelial cells, indicated by an enhancement in proliferation, survival and migration in vitro.

Abstract: Organic charge-transfer (CT) co-crystals in a mixed stack system are disclosed, wherein a donor molecule (D) and an acceptor molecule (A) occupy alternating positions (DADADA) along the CT axis. A platform is provided which amplifies the molecular recognition of donors and acceptors and produces co-crystals at ambient conditions, wherein the platform comprises (i) a molecular design of the first constituent (?-complement), (ii) a molecular design of the second compound (?-complement), and (iii) a solvent system that promotes co-crystallization.

Abstract: An article of manufacture and methods of making same. In one embodiment, the article of manufacture has a plurality of zinc oxide layers substantially in parallel, wherein each zinc oxide layer has a thickness d1, and a plurality of organic molecule layers substantially in parallel, wherein each organic molecule layer has a thickness d2 and a plurality of molecules with a functional group that is bindable to zinc ions, wherein for every pair of neighboring zinc oxide layers, one of the plurality of organic molecule layers is positioned in between the pair of neighboring zinc oxide layers to allow the functional groups of the plurality of organic molecules to bind to zinc ions in the neighboring zinc oxide layers to form a lamellar hybrid structure with a geometric periodicity d1+d2, and wherein d1 and d2 satisfy the relationship of d1?d2?3d1.

Abstract: Organic charge-transfer (CT) co-crystals in a crossed stack system are disclosed. The co-crystals exhibit bidirectional charge transfer interactions where one donor molecule shares electrons with two different acceptors, one acceptor face-to-face and the other edge-to-face. The assembly and charge transfer interaction results in a pleochroic material whereby the optical absorption continuously changes depending on the polarization angle of incident light.

Abstract: The present invention is directed to peptide amphiphile compounds, compositions and methods of use, wherein nanofiber bundling or epitope aggregation is inhibited. In certain embodiments, the peptide amphiphiles of the present invention have increased solubility and reduced nanofiber bundling. The molecules may be used in pharmaceutical applications, for example for in vivo administration to human patients, by increasing biological activity of the compositions toward neurite outgrowth and nerve regeneration.

Abstract: Amphiphilic peptide compounds comprising one or more epitope sequences for binding interaction with one or more corresponding growth factors, micellar assemblies of such compounds and related methods of use.

Abstract: Biocompatible composites comprising peptide amphiphiles and surface modified substrates and related methods for attachment thereon.

Abstract: Amphiphilic peptide compounds comprising one or more epitope sequences for binding interaction with one or more corresponding growth factors, micellar assemblies of such compounds and related methods of use.

Abstract: The present invention is directed to a composition useful for making homogeneously mineralized self assembled peptide-amphiphile nanofibers and nanofiber gels. The composition is generally a solution comprised of a positively or negatively charged peptide-amphiphile and a like signed ion from the mineral. Mixing this solution with a second solution containing a dissolved counter-ion of the mineral and/or a second oppositely charged peptide amphiphile, results in the rapid self assembly of the peptide-amphiphiles into a nanofiber gel and templated mineralization of the ions. Templated mineralization of the initially dissolved mineral cations and anions in the mixture occurs with preferential orientation of the mineral crystals along the fiber surfaces within the nanofiber gel. One advantage of the present invention is that it results in homogenous growth of the mineral throughout the nanofiber gel.

Abstract: The present invention provides for compositions and methods for creating self-assembled peptide amphiphile (PA) structures. In particular, the present invention provides for two and three-dimensional structures of crosslinked PA microtexture structures useful for tissue engineering and drug discovery.

Abstract: The present invention provides for self-assembling peptide amphiphiles that are capable of forming nanofibers. In particular, the present invention provides for diacetylene peptide amphiphiles that find use as scaffolds for tissue growth or for drug delivery.

Abstract: The separation of single-walled carbon nanotubes (SWNTs), by chirality and/or diameter, using centrifugation of compositions of SWNTs in and surface active components in density gradient media.

Abstract: The present invention provides compositions and methods for creating encapsulated peptide amphiphilic nanostructures useful in treating diseases. In particular, the present invention provides compositions and methods for preparing peptide amphiphile nanostructures that are encapsulated in liposomes by the application of light, and using such compositions in treating diseases, such as cancer.

Abstract: The present invention provides a method of promoting neuron growth and development by contacting cells with a peptide amphiphile molecule in an aqueous solution in the presence of a metal ion. According to the method, the peptide amphiphile forms a cylindrical micellar nanofiber composed of beta-sheets, which promote neuron growth and development.

Abstract: The present teachings provide methods for providing populations of single-walled carbon nanotubes that are substantially monodisperse in terms of diameter, electronic type, and/or chirality. Also provided are single-walled carbon nanotube populations provided thereby and articles of manufacture including such populations.

Abstract: The separation of single-walled carbon nanotubes (SWNTs), by chirality and/or diameter, using centrifugation of compositions of SWNTs in and surface active components in density gradient media.

Abstract: Peptide amphiphile compounds, compositions and methods for self-assembly or nanofibrous network formation under neutral or physiological conditions.