University of Florida Research Foundation, Incorporated

Other

Eastman-kodak Company

Brij M Moudgil

Vijay Krishna

Benjamin L Koopman

Parvesh Sharma

Huabei Jiang

Kevin William Powers

Stephen R Grobmyer

Qizhi Zhang

Scott Chang Brown

Wei Bai

Swadeshmukul Santra

Rajiv K Singh

Sanjay Behl

Karl Robert Zawoy

Edward William Scott

Glenn A Walter

Nathanael Ian Stevens

Dursun Ince

Amit Kumar Singh

Deepika Bhattacharya

Niclas Bengtsson

Mahendra K Sharma

Wolfgang M Sigmund

Michael Rogers

Gary Wayne Scheiffele

Aarthi Narayanan

Kevin Michael Folta

Ben Koopman

Spyros A Svoronos

Hassan E El-Shall

Edgardo Juan Etxeberria

Yakov I Rabinovich

Veena B Antony

Mohammed A Kamal

Sung-Hwan Lee

Georgios Pyrgiotakis

Hassan El-Shall

Jiaqing Zhou

Jie Gao

George J O'Neill

Paul Anthony Indeglia

Angelina Tsenova Georgieva

Iwakuma Nobutaka

Qiang Wang

Paul Louis Carpinone

Ajoy K Saha

Savino C Musella

Craig R Brodersen

A visible light photocatalyst coating includes a metal oxide that in the presence of a organic contaminate that absorbs at least some visible light or includes the metal oxide and an auxiliary visible light absorbent, where upon absorption of degradation of the organic contaminate occurs. Contaminates can be microbes, such as bacteria, viruses, or fungi. The metal oxide is nanoparticulate or microparticulate. The metal oxide can be TiO. The coating can include an auxiliary dye having an absorbance of light in at least a portion of the visible spectrum. The coating can include a suspending agent, such as NaOH. The visible light photocatalyst coating can cover a surface of a device that is commonly handled or touched, such as a door knob, rail, or counter.

Contaminant-activated photocatalysis

Polyhydroxyfullerenes (PHFs) having enhanced electron scavenging capabilities have a ratio of non-hydroxyl functional groups to hydroxyl functional groups that is less than or equal to 0.3. When combined with a semiconductor photocatalyst, such as titanium dioxide nanoparticles, the PHFs provide a photocatalyst for degradation of chemical and biological contaminates with an efficiency of at least twice that of titanium dioxide nanoparticles free of PHFs. The PHFs are included in these catalysts at a weight ratio to titanium dioxide of about 0.001 to about 0.003, whereas significantly lower and higher ratios do not achieve the highly improved photodegradation capability. PHFs outside of the desired structure are shown to be of little value for photodegradation, and can be inhibiting to the photocatalytic activity of TiO. The enhanced electron scavenging PHFs can be employed as a component of materials for solar cells, field effect transistors, and radical scavengers.

Enhancement of electron scavenging by water-soluble fullerenes

Nanoengineered particulate coatings (NPCs) comprise a multiplicity of particulate hosts that are infused with a nanophase comprising a surfactant and at least one guest. The particulate hosts can be clay particles, the surfactant can be a cationic surfactant, and the guest can be an insect repellant. For example, montmorillonite particles infused with hexadecyl trimethyl ammonium bromide and garlic oil form NPCs that may be used to form an emulsion or suspension for spraying on citrus trees to repel Asian Citrus Psyllid.

Engineered particulate systems for controlled release of pesticides and repellants

A continuous reaction system (CRS) allows a method to prepare quantum dots (QDs) in a continuous manner with high precision. The CRS pumps a plurality of reagent fluids into one or more mixing sites to form a reaction fluid that is carried through a heating chamber at elevated pressures to carry out hydrothermal growth of the QDs. The pumps and heating chamber are controlled with a high precision by employing a detector downstream of the heating chamber to provide a signal that is dependent on the composition and size of the QDs. The signal is provided to a signal processor that provides a signal that control the flow rates and temperature parameters in the system. The QDs produced in this manner are consistent in size and composition and can be of a single semiconductor composition or can be core-shell QDs with a shell semiconductor formed on a core semiconductor.

Process for making precision nanoparticles by hydrothermal flow manufacturing

Colored clay particles are prepared by the absorption of pigments, such as dyes, on the surface of clays. The surface of the clay can be modified with a surfactant such that a dye can be well bound to the particle's surface to avoid leaching of the dye into water. The colored clay particles can be used to deter insects, such as the Asian Citrus Psyllid (ACP), by coating a plant, such as a citrus plant, with the colored clay particles. The reflectance of the visible and ultraviolet light can be altered by the choice of dyes such that the spectrum visible to the insect deters the insect from the plant.

Colored clays for agricultural and other industrial applications

An electromagnetic radiation activated device comprises a property changing material and at least one functionalized fullerene that upon irradiation of the functionalized fullerenes with electromagnetic radiation of one or more frequencies a thermally activated chemical or physical transformation occurs in the property changing material. The thermal activated transformation of the property changing material is triggered by the heating or combustion of the functionalized fullerenes upon their irradiation. The device can include a chemical agent that is embedded in the property changing material and is released when the material is heated by the functionalized fullerenes upon irradiation.

Devices for thermally induced transformations controlled by irradiation of functionalized fullerenes

A method of irradiating a target region containing at least one fullerene comprising molecule promotes the heating or combustion of the target region. The heating method can be employed in a variety of applications including: selective targeting and destruction of cancer cells, detonation of explosives, ignition of a combustible mixture, photolithographic processes, and writing of optical storage media.

Systems and methods based on radiation induced heating or ignition of functionalized fullerenes

Methods of stimulating an increase in biomass by stimulating the growth, lifespan and/or reproduction of organisms such as fungi, algae, plants, and other aquatic organisms are provided by applying an effective amount of functionalized fullerenes. For example, polyhydroxy fullerenes are effective at low levels of promoting the increase in biomass.

Functionalized fullerenes as a biomass stimulant and a life extension agent

Functionalized fullerenes are used in a method of combating fungal growth on surfaces and treating fungal diseases of patients. Surfaces that can be treated by the materials comprising an effective amount of functionalized fullerenes include those of fruits, vegetables, harvested grains, plants, or plant seeds. The method of combating fungal growth on a surface can be augmented but is not dependent on irradiation of the surface by light. Functional fullerenes are employed in various dosage forms such as topical, ingestible or administration.

Functionalized fullerenes as antifungal agents

Polyhydroxyfullerenes (PHFs) having enhanced electron scavenging capabilities have a ratio of non-hydroxyl functional groups to hydroxyl functional groups that is less than or equal to 0.3. When combined with a semiconductor photocatalyst, such as titanium dioxide nanoparticles, the PHFs provide a photocatalyst for degradation of chemical and biological contaminates with an efficiency of at least twice that of titanium dioxide nanoparticles free of PHFs. The PRFs are included in these catalysts at a weight ratio to titanium dioxide of about 0.001 to about 0.003, whereas significantly lower and higher ratios do not achieve the highly improved photodegradation capability. PHFs outside of the desired structure are shown to be of little value for photodegradation, and can be inhibiting to the photocatalytic activity of TiO. The enhanced electron scavenging PHFs can be employed as a component of materials for solar cells, field effect transistors, and radical scavengers.

A method to release hydrogen from a material comprising hydrogen fixed fullerenes involves irradiating the hydrogen fixed fullerenes with electromagnetic radiation of sufficient intensity to release hydrogen rapidly upon irradiation. The intensity of the irradiation and/or the area of irradiation can be adjusted to control the rate and extent of hydrogen release. The hydrogen depleted material comprising hydrogen fixed fullerene can be hydrogenated to regenerate the material.

Optical release of hydrogen from functionalized fullerenes as storage materials

Electromagnetic irradiation of functionalized fullerenes in an oxygen-free environment induces conversion of the functionalized fullerenes to carbon nanotubes, carbon nanohorns, carbon onions, diamonds and/or carbon schwarzites. The carbon nanotubes can be multi-wall carbon nanotubes. Advantageously, the subject invention can be used for in-situ synthesis of carbon nanostructures within a matrix to form a carbon nanostructure composite, where positioning of the carbon nanostructures is controlled by the manner of dispersion of the functionalized fullerenes in the matrix. Carbon nanotube comprising features, such as electrical connects, can be formed on a surface by irradiating a portion of a functionalized fullerene coating with a laser beam.

Production of carbon nanostructures from functionalized fullerenes

Fullerenes, when irradiated with electromagnetic radiation, generate acoustic waves. A photoacoustic tomography method using a material comprising fullerenes is disclosed that includes irradiating the material with a radiation beam such as a laser. The resultant photoacoustic effect produced by the material is detected by at least one detector. A photoacoustic tomography system using a material comprising fullerenes is also described.

Use of fullerenes in photoacoustic imaging

Growing community of inventors

Gainesville, FL, United States of America

Brij M Moudgil