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Studies on problems regarding in vitro measurement of SPF of sunscreen formulations
Professor ASAKURA, Kouichi
Department of Applied Chemistry
In vitro processes for evaluating sunscreen formulations are being developed on a worldwide level. When SPF (Sun Protection Factor) is measured in vitro, it is necessary to apply the sunscreen formulation uniformly on a substrate. A spatially periodic stripe pattern parallel to the direction of coating, however, generally forms and is extremely difficult to eliminate.
Measurement of structure in disordered systems, liquids, glasses, and defects in crystals
Research Associate CHIBA, Ayano
Department of Physics
In liquids, glasses, and crystal defects, there is no structural regularity in the atomic arrays. We are engaged in the measurement of structures while controlling their irregular atomic arrays through pressure and temperature. In our exhibit, we will provide examples of measurements performed with graphite as a model of crystal defects, as well as liquids and glasses. We also plan to perform a demonstration of magnetic levitation.
Surface engineering for biomaterials
Professor KOMOTORI, Jun
Department of Mechanical Engineering
Therapies involving long-term implantation of metal devices in patients have increased in recent years, and widespread efforts have recently focused on obtain highly safe materials that withstand long-term use. In this exhibit, we present a new surface modification process that we have recently developed.
Surface engineering for structural steel
Professor KOMOTORI, Jun
Department of Mechanical Engineering
Various surface modification processes are used to increase the fatigue strength, corrosion resistance, abrasion resistance, and other properties of metal in order to obtain heightened performance for machines and structural objects. In this exhibit, we present a new surface modification process developed during the past several years in our laboratory for metal with heightened performance characteristics.
Soiling-resistant high-release coating through repellence to both water and oil
Associate Professor SHIRATORI, Seimei
Department of Applied Physics and Physico-informatics
The coating presented in this exhibit imbues substrate surfaces with both water and oil resistance. It imparts excellent liquid release from vessels, thus leaving no residue of expensive liquids on the vessel interior surfaces. The coating adds a soiling-resistant function to fibers, fabrics, wood, metals, and resins. On agitator surfaces, it reduces flow resistance, thus reducing power consumption and increasing fuel efficiency.
Functional nanocoating using layer-by-layer self assembly
Associate Professor SHIRATORI, Seimei
Department of Applied Physics and Physico-informatics
In our research, we create functional thin films using nanocoating technology with aqueous solutions as the main material. We will present a number of special films, such as multilayer optical films obtained through control of film refractive index and thickness, super-hydrophilic films with anti-fogging effect, high-transparency electroconductive films, and antithrombogenic films for medical instruments.
Synthesis of bioactive substances by environmentally benign methodology
Professor NISHIYAMA, Shigeru
Department of Chemistry
Despite the many advances that have been achieved in medical technology, serious diseases continue to pose major challenges to effective therapy. Current advances in organic chemistry enables the synthesis of virtually any organic compound; however, their use of toxic reagents and other problems remain. Today, we report on our research on the production of useful leads of medicinal drugs through effective utilization of clean electrical energy.
Photoswitchable nanomaterials
Research Associate YAMAMOTO, Takashi
Associate Professor EINAGA, Yasuaki
Department of Chemistry
Our research focuses on development of photoswitchable nanomaterials. These types of materials can potentially be utilized as a next-generation electronics components such as high-speed and high-density recording media. At our exhibition booth, we demonstrate an optical control on magnetic and superconductive properties.
Flame synthesis of functional nanomaterials
Assistant Professor YOKOMORI, Takeshi
Department of Mechanical Engineering
Combustion essentially consists of high-temperature thermal decomposition and oxidation reactions, which can be applied to synthesize oxidized materials and many other substances. In our exhibit, we will present a method of utilizing gas combustion reactions (flame) for synthesis of phosphor nanoparticles, hollow porous particles and nanotubes, and other functional nanomaterials.