Photothermocatalyticexpialadocious: The highly efficient photothermocatalytic detoxification of benzene is realized by coating nano TiO2 on the surfaces of a UV lamp without using an additional heater. Its high photothermocatalytic efficiency can be significantly enhanced by supporting well‐dispersed Pt nanoparticles on TiO2. The excellent photothermocatalytic performance of TiO2 and Pt/TiO2 is due to the existence of new photothermocatalytic synergetic effects.

No abstract

No abstract

LL-37, the active product of human cathelicidin antimicrobial peptide (CAMP) has a broad spectrum of antibacterial activity. LL-37 also has important physiological functions in immune regulation, angiogenesis and in modulating apoptosis. The roles of LL-37 in oral squamous cell carcinoma (OSCC) are still not clear. The correlation between DNA methylation and human CAMP expression is also unknown. Here human CAMP/LL-37 expression was assessed by immunohistochemistry in normal and OSCC tissues. The results indicated that low expression of CAMP/LL-37 correlated with histological differentiation and lymph node metastasis and also promoted tumor progression. A cell-specific methylation pattern in the promoter region of human CAMP was detected. Treatment with 5-aza-2′-deoxycytidine, a DNA demethylation reagent can increase human CAMP expression in epithelial cancer cells. The reporter assay showed that unmethylated human CAMP promoter activity was significantly higher than methylated promoter activity. Taken together, these results suggested that human CAMP/LL-37 might act as a tumor-suppressor in OSCC and DNA methylation might play roles during carcinogenesis via directly downregulating human CAMP promoter activity.