Photothermal Effect

DGIST Professor Hongki Kang of the Department of Electrical Engineering & Computer Science and his research team successfully developed a selective photothermal layer formation technology and a transparent electrode based on the fine inkjet printing solution process. This technology is anticipated to contribute to the development of biomaterial devices for applications that require device transparency or are…

Professor Park Chi-Young's team successfully developed an atypical porous polymer material that can completely remove phenolic organic contaminants in water at ultra-high speeds. The porous material developed can efficiently remove not only microplastics in the water but also very small-sized volatile organic compounds (VOCs) based on photothermal effect. At the same time, it is expected to be utilized as a…

The use of antibiotics helps fight bacterial infection, but the abuse of antibiotics has resulted in the emergence and widespread prevalence of "super bacteria," making the treatment of infectious diseases a worldwide problem again.

A KAIST research team has developed an anti-icing and de-icing film coating technology that can apply the photothermal effect of gold nanoparticles to industrial sites without the need for heating wires, periodic spray or oil coating of anti-freeze substances, and substrate design alterations.

Traditionally, active metasurface research has primarily focused on changing the dielectric constant and permeability of the substrate, which frequently results in resonance effect and ohmic loss. However, a reconfigurable metasurface based on mechanical deformation can avoid these problems. At the moment, though, mechanical reconfigurable metasurfaces represented by the MEMS and FIB-induced deformation processes…

Every material possesses a unique natural vibration frequency such that when an external periodic force is applied to this material close to this frequency, the vibrations are greatly amplified. In the parlance of physics, this phenomenon is known as "resonance." Resonance is ubiquitous in our daily life, and, depending on the context, could be deemed desirable or undesirable.

Researchers at Kanazawa University report in ACS Nano the development of a nanoparticle that acts as a heater and a thermometer. Inserting the nanoparticle in living cells results in a heat spot that, by switching it on and off, enables the controlled modulation of local cellular activities.

Liquid metals (LM) such as pure gallium (Ga) and Ga-based alloys are a new class of materials with unique physicochemical properties. One of the most prominent applications of LMs is photothermal therapy against cancer, in which functional LM nanoparticles convert light energy to heat energy, thus killing cancerous cells. LM-based phototherapy is superior to traditional cancer therapy owing to its high specificity,…

PCR technology is a molecular diagnostics technology that detects target nucleic acids by amplifying the DNA amount. It has brought marked progress in the life sciences field since its development in 1984.

Researchers have developed a transparent temperature sensor capable of precisely and quickly measuring temperature changes caused by light. This technology is expected to contribute to the advancement of various applied bio devices that rely on sensitive temperature changes.