Multi-Objective Unsupervised Band Selection Method for Hyperspectral Images Classification.

With the increasing spectral dimension of hyperspectral images (HSI), how correctly choose bands based on band correlation and information has become more significant, but also complicated. Band selection is a combinatorial optimization problem, and intelligent optimization algorithms have been shown to be crucial in solving combinatorial optimization problems. However, major of them only use a single objective as the selection index, while neglecting the overall features of hyperspectral images, which may lead to inaccuracy in object detection.

Synthesis of supramolecular gels based on electron-transfer reactions between clay nanotubes and styrene.

A novel supramolecular gel is synthesized using styrene and halloysite nanotubes under ultrasound treatment, in which the nanotubes act as gelators for the styrene gel. The formation of the gel arises from electron-transfer reactions between styrene and the aluminium atoms at the crystal edges and the transition metal ions of the clay. The supramolecular gel is transparent and sensitive to temperature, which shows promising applications in sensors, templates, and gelling fuels.

In vitro and in vivo toxicity evaluation of halloysite nanotubes.

Because of their outstanding properties, increasing numbers of research studies and emerging applications for manufacturing products are currently in progress for halloysite nanotubes (HNTs). Therefore, the impact of HNTs on the environment and human health should be taken into consideration. In order to clearly show the cell uptake of HNTs and the biodistribution of HNTs in zebrafish, HNTs are labeled with fluorescein isothiocyanate (FITC-HNTs).