Results 101 to 110 of about 1,254,309 (209)
The Role of Oxidative Stress in Periodontitis
Oxidative stress is involved in multiple chemical reactions that take place in different intracellular organelles: mitochondria, rough endoplasmic reticulum, peroxisomes, autophagy, and aging, and can be influenced by exogenous factors: nutrition, physical activity, psychological status, environmental conditions, microbiome, and drugs.
Pedro Bullon +3 more
wiley +1 more source
Oxygen-Mediated Sequential Down-Conversion in Perylenediimides [PDF]
Perylenediimides (PDIs) are among the best-known chromophores for optoelectronic applications. Their photophysics in oxygen-rich environments remains, however, underexplored.
Fernández-Lázaro, Fernando +7 more
core +1 more source
Photochemistry of CryB from Rhodobacter sphaeroides
Elucidation of the photochemistry of CryB from Rhodobacter sphaeroides was achieved from the nanosecond to second timescale. A fast (<5 ns) deprotonation of the terminal electron donor Trp338 and the involvement of Tyr337 in photoreduction have been revealed.
Christopher Einholz +6 more
wiley +1 more source
UVB and UVA generate cyclobutane pyrimidine dimers (CPDs) during irradiation (purple). After exposure ends, chemiexcitation in pigmented melanocytes continues to generate delayed CPDs (yellow), even as repair removes some pre‐existing lesions. Consequently, total CPD burden can rise while visible erythema fades.
Jyoti Srivastava +2 more
wiley +1 more source
Surface ligands govern quantum dot photocatalysis through thermodynamic band‐edge tuning, kinetic charge‐transfer regulation, and microenvironmental control. Rational ligand engineering, using short‐chain, inorganic, conjugated, or dual‐ligand systems, enables efficient solar fuel production, selective organic transformations, environmental remediation,
Yali Weng +5 more
wiley +1 more source
A series comprised by four nonionic yet amphiphilic octa‐substituted Ni(II) phthalocyanines is introduced. These NiPcs are soluble in both polar organic solvents and aqueous media. A new experimental setup was developed to investigate their photoacoustic efficiency by combining transient absorption and photoacoustic spectroscopy. This approach revealed
Sidharth Thulaseedharan Nair Sailaja +5 more
wiley +1 more source
Preliminary study of a centrifugal-flow singlet oxygen generator
By using the concept of a high-pressure, gravity-independent singlet oxygen generator (SOG) proposed by Emanuel and based on the principle that a rotating fluid is capable of producing an enormous centrifugal force, a novel-type centrifugal-flow singlet ...
Zhang, Cunhao +5 more
core +1 more source
Thiolane sulfoximines provide practical and safer surrogates for hazardous azides in nitrene photochemistry, enabling direct access to 7,8‐diaminoquinolines and fused δ‐lactams. DFT calculations support the reaction mechanism and rationalize product selectivity.
Lorenzo Serusi +5 more
wiley +1 more source
A method to eliminate excessive singlet oxygen in a chemical oxygen iodine laser is demonstrated. This is important for the design of an ejector that pumps the laser system.
Waiblinger, Frank
core
Reactivity of Singlet Oxygen with Biomolecular Constituents
Theoretical results on Reactivity of Singlet Oxygen with Biomolecular ...
Marchetti, Barbara +3 more
core +1 more source

