Articles tagged with Photosensitivity
Researchers developed molecular antennae to boost visible-light sensitivity of azobenzene photoswitches, preserving stability. The new design achieved high visible-light sensitivities, with one molecule reaching 8,100 M⁻¹ cm⁻¹.
Carbon quantum dots can be designed to absorb specific wavelengths using atomic defects, enabling targeted optical functions and applications. The study provides a predictive framework for designing defect-encoded CQDs with controlled excitonic behavior.
Researchers at The University of Osaka developed a molecular design strategy to reconcile the trade-off between polymer material's durability and degradability. They created a tough material whose enzymatic degradation can be switched on or off using light, allowing for precise programming of its lifetime.
A novel approach to designing crystalline organic nanofiber photosensitizers has been developed. These materials exhibit exceptional light harvesting and singlet oxygen generation capabilities, enabling rapid photooxidation of organic substrates.
A team of researchers at the University of Pennsylvania has designed a new light-controlled cholesterol molecule that selectively targets two poorly understood sterol transport proteins, ORP1 and ORP2. This breakthrough enables precise spatiotemporal control over cholesterol's biological activity, paving the way for advanced therapeutics.
The seminar, part of a DAAD-JSPS collaboration, will cover the latest topics on drug design and treatment protocols for photodynamic therapy. Researchers from Japan and Germany will present their recent research results on PDT, including nano-DDS applications.
A team of Penn engineers and materials scientists have developed a biomineral-infused concrete that captures up to 142% more CO2 than conventional mixes while using less cement. The new material is stronger, lighter, and uses fewer materials like cement.
Researchers at Dartmouth College developed a technique using light to imprint 2D and 3D images inside any polymer containing a photosensitive chemical additive. The technology enables the creation of erasable 3D displays with high resolution, applicable in surgeries, architectural designs, education, and art.
Researchers at Brookhaven National Laboratory have developed a universal method for producing functional 3D metallic and semiconductor nanostructures using DNA. The new method produces robust nanostructures from multiple material classes, opening opportunities for 3D nanoscale manufacturing.
Researchers at City University of Hong Kong have developed a new class of near-infrared-activated photo-oxidants that can effectively kill cancer cells without requiring oxygen. The discovery offers a promising direction for developing anti-cancer drugs and could overcome existing limitations of photodynamic therapies.
The study demonstrated that photodynamic therapy (PDT) using chlorin e-6 can effectively reduce bacterial plaque biofilms containing cariogenic microorganisms, including Streptococcus mutans. The treatment eliminated S. mutans and decreased total microorganisms by up to 3.7 units, with approximately 99% efficacy of antimicrobial activity.
Researchers at Hospital for Special Surgery discovered a key role for Langerhans cells in protecting the skin from UV light-induced injury. The study found that impaired Langerhans cell function contributes to photosensitivity in lupus patients, providing a potential new target for treatment.
A study published at the ECNP congress found that individuals with photophobia (fear of bright light) experience medium to high levels of aversion to bright light. The research suggests a possible association between photophobia and panic disorder, but further studies are needed to confirm this relationship.