[Fabrication of silver ordered nanoarrays SERS-active substrates and their applications in bladder cancer cells detection].

Highly ordered silver nanopore and nanocap arrays, which were used as surface-enhanced Raman scattering active (SERS-active) substrates, were fabricated by electron-beam evaporating silver on the surface of porous layer and barrier layer of porous anodic alumina (PAA) membranes, respectively. The SERS characteristics of the SERS-active substrates were tested with bladder cancer cells as molecular probe. The results indicated that both the SERS-active substrates displayed a strong SERS enhancement effect. The silver nanocap ordered arrays SERS-active substrate displayed not only higher SERS and fluorescence quenching effect, but also no interferential spectrum related with oxalate impurity remaining in PAA membranes, and therefore can result in the high quality Raman spectroscopy of bladder cancer cells.

[Application and prospect of spectroscopy in the turfgrass quality evaluation program].

In the process of protection and improvement of the city ecological environment, the turfgrass' role cannot be substituted. Many researches on turfgrass have been made in terms of ecology, physiology and biotechnology, but still revealed the insufficiency regarding the research on turfgrass quality evaluation program. Particularly, the judgment method used in the turfgrass quality evaluation program often lacked the objective basis. The spectral analysis is the method based on the materials emission or absorption of electromagnetic radiation as well as the mutual relation between material and the electromagnetic radiation. There are many merits during the spectral analysis: timeliness, operation simplicity, cost low cost, no sample consumption and so on. As one kind of effective, convenient and objective analysis means, spectroscopy has found certain applications in the turfgrass field, such as turfgrass coverage degree, turfgrass colour and lustre, turfgrass disease and turfgrass uniformity, thereby, the application of spectral technology in turfgrass quality evaluation could ensure the result with rationalism and standardization. At the same time, it is expected that various analysis software, models and new instruments to be applied to the turfgrass field are going to be improved. Furthermore, it is hoped that the spectrum technology is to be applied widely in turfgrass science study.