Abstract: The present disclosure concerns a system and a method for enabling improvements in grading the condition of uniquely-identified used articles. A system for grading used articles comprises a used-article grading area, an imaging system, at least one processor and a computer-readable memory. The memory is configured to implement a machine-learning algorithm. A method of operating a system for grading the condition of a used article comprises receiving the used article into a used-article grading area, depositing the used article on an imaging surface, moving components of an imaging system relative to the position of the used article, capturing images of the used article on the imaging surface, sending the captured images to a processor, implementing a trained machine-learning algorithm for condition classification, sending the grade determined by the machine-learning algorithm to a processor, and assigning the grade received from the machine-learning algorithm to the UID assigned to the used article.

Abstract: The present disclosure enables improvements in article evaluating, disposing and repricing uniquely-identified used articles. The invention comprises a system and a method for evaluating used articles, a system and a method for disposing used articles, and a system and a method for repricing used articles. Each system comprises a processor, a database and a computer-readable memory, which comprises a machine-learning algorithm. A unique identifier assigned to an article plays a crucial role in linking the systems and methods. A used article is fed into the evaluating system, which returns an evaluated article. Data on the evaluated article are fed into the disposing system, which returns a disposed article. For a disposed article to be listed for sale in an E-commerce marketplace, data on the disposed article are fed into the repricing system, which can reprice the article in response to market conditions. Each of the methods implements a machine-learning algorithm.

Abstract: Electrospun nanofibrils and methods of preparing the same are provided. The electrospun nanofibrils comprise at least one polypeptide. A polypeptide can be dissolved in a solution, and the solution can be electrospun into a nanofibril. The solution can be added to a syringe or syringe pump, and an electric field can be applied to electrospin the at least one polypeptide.

Abstract: The subject invention pertains to peptide-based materials comprising cross-linked peptides with random amino acid sequences that are soluble in water or ethanol before crosslinking but insoluble in water after crosslinking.

Abstract: Electrospun nanofibrils and methods of preparing the same are provided. The electrospun nanofibrils comprise at least one polypeptide. A polypeptide can be dissolved in a solution, and the solution can be electrospun into a nanofibril. The solution can be added to a syringe or syringe pump, and an electric field can be applied to electrospin the at least one polypeptide.

Abstract: Electrospun nanofibrils and methods of preparing the same are provided. The electrospun nanofibrils comprise at least one polypeptide. A polypeptide can be dissolved in a solution, and the solution can be electrospun into a nanofibril. The solution can be added to a syringe or syringe pump, and an electric field can be applied to electrospin the at least one polypeptide.

Abstract: Electrospun nanofibrils and methods of preparing the same are provided. The electrospun nanofibrils comprise at least one polypeptide. A polypeptide can be dissolved in a solution, and the solution can be electrospun into a nanofibril. The solution can be added to a syringe or syringe pump, and an electric field can be applied to electrospin the at least one polypeptide.

Abstract: Electrospun nanofibrils and methods of preparing the same are provided. The electrospun nanofibrils comprise at least one polypeptide. A polypeptide can be dissolved in a solution, and the solution can be electrospun into a nanofibril. The solution can be added to a syringe or syringe pump, and an electric field can be applied to electrospin the at least one polypeptide.

Abstract: The subject invention pertains to peptide-based materials comprising cross-linked peptides with random amino acid sequences that are soluble in water or ethanol before crosslinking but insoluble in water after crosslinking.

Abstract: Electrospun nanofibrils and methods of preparing the same are provided. The electrospun nanofibrils comprise at least one polypeptide. A polypeptide can be dissolved in a solution, and the solution can be electrospun into a nanofibril. The solution can be added to a syringe or syringe pump, and an electric field can be applied to electrospin the at least one polypeptide.

Abstract: Disclosed herein is a multilayer film comprising two or more layers of polyelectrolytes, wherein adjacent layers comprise oppositely charged polyelectrolytes. A first layer polyelectrolye comprises a composite polypeptide comprising one or more surface adsorption regions covalently linked to one or more functional regions forming a single polypeptide chain. The surface adsorption regions comprise one or more amino acid sequence motifs consisting of 5 to 15 amino acid residues. The one or more functional regions comprise 3 to about 250 amino acid residues.

Abstract: Disclosed herein are polypeptide multilayer films comprising a hybrid polypeptide comprising a first polypeptide segment and a second segment, the two segments being covalently joined by one or more non-peptidic linkages. The first segment comprises a polypeptide having a magnitude of net charge per residue of greater than or equal to 0.4, and a length of greater than or equal to about 12 amino acid residues. The second segment comprises a polypeptide or another polyelectrolyte.

Abstract: Disclosed herein are immunogenic compositions comprising a multilayer film comprising two or more layers of polyelectrolytes, wherein adjacent layers comprise oppositely charged polyelectrolytes. A first layer polyelectrolyte comprises an antigenic polypeptide comprising one or more surface adsorption regions covalently linked to one or more antigenic determinant regions, wherein the antigenic polypeptide and the one or more surface adsorption regions have the same polarity. The immunogenic compositions may be employed in methods of eliciting an immune response in a vertebrate organism.

Abstract: Disclosed herein are immunogenic compositions comprising a multilayer film comprising two or more layers of polyelectrolytes, wherein adjacent layers comprise oppositely charged polyelectrolytes. A first layer polyelectrolyte comprises an antigenic polypeptide comprising one or more surface adsorption regions covalently linked to one or more antigenic determinant regions, wherein the antigenic polypeptide and the one or more surface adsorption regions have the same polarity. The immunogenic compositions may be employed in methods of eliciting an immune response in a vertebrate organism.

Abstract: Disclosed herein are immunogenic compositions comprising a multilayer film comprising two or more layers of polyelectrolytes, wherein adjacent layers comprise oppositely charged polyelectrolytes. A first layer polyelectrolyte comprises an antigenic polypeptide comprising one or more surface adsorption regions covalently linked to one or more antigenic determinant regions, wherein the antigenic polypeptide and the one or more surface adsorption regions have the same polarity. The immunogenic compositions may be employed in methods of eliciting an immune response in a vertebrate organism.

Abstract: Disclosed herein are immunogenic compositions comprising a multilayer film comprising two or more layers of polyelectrolytes, wherein adjacent layers comprise oppositely charged polyelectrolytes. A first layer polyelectrolyte comprises an antigenic polypeptide comprising one or more surface adsorption regions covalently linked to one or more antigenic determinant regions, wherein the antigenic polypeptide and the one or more surface adsorption regions have the same polarity. The immunogenic compositions may be employed in methods of eliciting an immune response in a vertebrate organism.

Abstract: Disclosed herein are immunogenic compositions comprising a multilayer film comprising two or more layers of polyelectrolytes, wherein adjacent layers comprise oppositely charged polyelectrolytes. A first layer polyelectrolyte comprises an antigenic polypeptide comprising one or more surface adsorption regions covalently linked to one or more antigenic determinant regions, wherein the antigenic polypeptide and the one or more surface adsorption regions have the same polarity. The immunogenic compositions may be employed in methods of eliciting an immune response in a vertebrate organism.

Abstract: Disclosed herein is a method of making a film, the method comprising depositing a first layer polyelectrolyte on a surface of a substrate to form a first layer; and depositing a second layer polyelectrolyte on the first layer polyelectrolyte to form a second layer. The first layer polyelectrolyte, the second layer polyelectrolyte, or both, is deposited on the substrate in the presence of a polymeric precipitant; and the first layer polyelectrolyte and the second layer polyelectrolyte have net charges of opposite polarity. Also disclosed are methods of improving bioactive molecule retention during fabrication of a polyelectrolyte multilayer film.

Abstract: Disclosed herein are immunogenic compositions comprising a multilayer film comprising two or more layers of polyelectrolytes, wherein adjacent layers comprise oppositely charged polyelectrolytes. A first layer polyelectrolyte comprises an antigenic polypeptide comprising one or more surface adsorption regions covalently linked to one or more antigenic determinant regions, wherein the antigenic polypeptide and the one or more surface adsorption regions have the same polarity. The immunogenic compositions may be employed in methods of eliciting an immune response in a vertebrate organism.

Abstract: Disclosed herein are immunogenic compositions comprising a multilayer film comprising two or more layers of polyelectrolytes, wherein adjacent layers comprise oppositely charged polyelectrolytes. A first layer polyelectrolyte comprises an antigenic polypeptide comprising one or more surface adsorption regions covalently linked to one or more antigenic determinant regions, wherein the antigenic polypeptide and the one or more surface adsorption regions have the same polarity. The immunogenic compositions may be employed in methods of eliciting an immune response in a vertebrate organism.