Shape- and Size-Dependent Refractive Index Sensing and SERS Performance of Gold Nanoplates.

Plasmonic sensors are promising for ultrasensitive chemical and biological analysis. Gold nanoplates (Au NPLs) show unique geometrical structures with high ratios of surface to bulk atoms, which display fascinating plasmonic properties but require optimization. This study presented a systematic investigation of the influence of different parameters (shape, aspect ratio, and resonance mode) on localized surface plasmon resonance properties, refractive index (RI, ) sensitivities, and surface-enhanced Raman scattering (SERS) enhancement ability of different types of Au NPLs through finite-difference time-domain (FDTD) simulations.

Tetratrichomonas in pyopneumothorax.

Pleural trichomonosis is clinically rare, and very few cases of trichomonal empyema have been reported so far. A rare case of an 81-year-old woman with pyopeumothorax presenting with recurrent fever and macroscopic pyuria was present. Microscopic examination of the pleural effusion showed mobile flagellated protozoa which molecular methods identified as Tetratrichomonas.

[Surgical treatment and effect observation of cervical intraspinal benign neoplasms].

Objective: To investigate the diagnosis, surgical procedure and clinical outcome of cervical intraspinal benign neoplasm.

Methods: Twenty-two cases confirmed pathologically were reviewed included 16 males and 6 females with an average age of 43.8 years old ranging from 18 to 56 years.