ABSTRACT
Background: Camptoscaphiella Caporiacco, 1934 is a small genus of oonopid spiders that currently contains 20 species, of which five have been recorded in Yunnan, China. New information: Three new species of Camptoscaphiella, C.hudie Tong & Yang, sp. nov. (female), C.yinglefeng Tong & Yang, sp. nov. (female, male) and C.yujufeng Tong & Yang, sp. nov. (male) are described from Yunnan, China. Descriptions, diagnoses and photographs are provided.
ABSTRACT
Background: Ischnothyreus Simon, 1893 is one of the most speciose genera of Oonopidae, with 124 extant species mainly distributed in the Old World. Currently, 27 species are known in China. New information: A new species, Ischnothyreusruyuanensis Tong, sp. n., is described from Guangdong Province, China. Morphological description and illustrations are provided.
ABSTRACT
After excitation is stopped, long persistent phosphor materials (LPPs) can emit light for a long time. The most important feature is that it allows the separation of excitation and emission in time. Therefore, it plays a vital role in various fields such as data storage, information technology, and biomedicine. Owing to the unique mechanism of storage and luminescence, LPPs can avoid the interference of sample autofluorescence, as well as show strong tissue penetration ability, good afterglow performance, and rich spectral information in the near-infrared (NIR) region, which provides a broad prospect for the application of NIR LPPs in the field of biomedicine. In recent years, the development and applications in biomedical fields have been advanced significantly, such as biological imaging, sensing detection, and surgical guidance. In this review, we focus on the synthesis methods and luminescence mechanisms of different types of NIR LPPs, as well as their applications in bioimaging, biosensing detection, and cancer treatment in the field of biomedicine. Finally, future prospects and challenges of NIR LPPs in biomedical applications are also discussed.
ABSTRACT
A unique one-pot cyclization of 2-aminophenethyl alcohols with carboxylic acids in the presence of PPh3, CCl4, and NEt3 furnished the formation of N-acyl indolines in good to excellent yields. This new approach provides an efficient, scalable, low-cost, and direct access to the biologically important indolines which are further oxidizable to indoles and oxindoles.