Purdue Research Foundation

Republic of Korea (management: Rural Development Administration)

Young L Kim

Jung Woo Leem

Seung Ho Choi

Jungwoo Leem

Jong Woo Park

Sang Mok Park

Heejae Jeon

Seong Wan Kim

Kee Young Kim

Yunsang Kwak

Nam Sup Kim

Yuhyun Ji

Seong Ryul Kim

Chan Young Jung

Hee-Jae Jeon

Sang Kug Kang

A method of authenticating an item is disclosed which includes applying light to an item, wherein the item includes a random distribution of fluorescent particles disposed thereon, capturing one or more images from the item, generating a cryptographic pattern from the one or more captured images by a host processing system, communicating the cryptographic pattern to a remote processing system having a plurality of cryptographic keys in a database each uniquely associated with a corresponding item, comparing the cryptographic pattern with the plurality of cryptographic keys in the database, and communicating a positive evaluation for authentication to the host processing system if a match is found between one of the plurality of cryptographic keys and the communicated cryptographic pattern.

Image processing and authentication of unclonable functions

A method for creating an information code configured by a silk film includes a process of creating a white silk film: a process of creating a micro-grating pattern on the white silk film, and a process of coating the white silk film with each of the plurality of fluorescent silk solutions in a corresponding position of the information code and the information code is configured by a color corresponding to each of the plurality of fluorescent silk solutions and a white color.

Information code creating method using fluorescent silk and information code created thereby

A whole-body or whole-room voluminous antiviral and antibacterial airborne disinfection system is disclosed which includes a sterilization chamber, including a nozzle disposed in the sterilization chamber, a tank disposed outside the sterilization chamber, the tank is adapted to hold a photosensitizer fluid of edible food dyes, a light source within the sterilization chamber adapted to flood the sterilization chamber with light; and a nozzle adapted to release the photosensitizer fluid aerosols and generate reactive oxygen species in a fog-like dispersion.

Antiviral and antibacterial disinfection aero-solution using edible food dyes

A method of generating a physically unclonable function (PUF) for pharmaceutical authentication is disclosed which includes generating an edible (PUF), affixing the edible PUF onto a pharmaceutical in a random distribution, and generating a cryptographic key based on the randomly distributed and affixed edible PUF. The present disclosure generally relates to counterfeit measures, and in particular, to an arrangement concerning an edible unclonable function counterfeit measure.

Edible unclonable functions

An Anderson localized hyperspectral filter array is disclosed which includes a base layer and a plurality of optical layers deposited on the base layer selected from two or more materials, each material having a refractive index that is different from the other materials of the two or more materials, wherein no consecutively deposited optical layers have the same refractive index, each of the plurality of optical layers having a thickness chosen based on a random number within a predetermined range.

Pearl-inspired hyperspectral filter arrays

A method of disinfection of a surface of a subject of harmful microorganisms including pathogenic bacteria and viruses upon visible light irradiation using a hybridized fluorescent silk is provided. The method includes placing a predetermined quantity of the hybridized fluorescent silk i) directly on to a skin surface of a subject; or ii) on a medium and then placing the medium on the skin surface of the subject. The method further includes applying light in the visible spectrum for a predetermined amount of time to the placed quantity of hybridized fluorescent silk, wherein the hybridized fluorescent silk is one of KillerRed, SuperNova, KillerOrange, Dronpa, TurboGFP, mCherry, or any combination thereof.

Light activated photoreaction via genetic hybridization of far-red fluorescent protein and silk

A method of inactivating harmful microorganisms of a filtration medium including pathogenic bacteria and viruses is disclosed which includes placing a predetermined quantity of a hybridized fluorescent silk on to a filtration medium, applying light for a predetermined amount of time to the placed quantity of the hybridized fluorescent silk, and passing a fluid through the medium, wherein the fluid is one of substantially air or substantially water, wherein the hybridized fluorescent silk is one of KillerRed, SuperNova, KillerOrange, Dronpa, TurboGFP, mCherry, or any combination thereof.

A photoelectric device is disclosed. The photoelectric device includes a first electrode, a second electrode, and an electrolyte disposed between the first electrode and the second electrode. The second electrode includes a transparent layer for allowing light to penetrate into the second electrode, an electron transport layer coupled to the transparent layer, and a genetically hybridized fluorescent silk layer as a photo-sensitizer coupled to the electron transport layer.

Growing community of inventors

West Lafayette, IN, United States of America

Young L Kim