A case of vitiligo after COVID-19 vaccination: a possible role of thymic dysfunction.

During the coronavirus disease 2019 (COVID-19) pandemic, vaccines help control the spread of infection. To date, 47 vaccines have been approved, with another 227 candidates in various stages of development. In the short period of time since the beginning of their use, evidence has begun to emerge of complications following vaccination in the form of the development or exacerbation of a number of pathological conditions (Block et al.

Quantum dots are time bomb: Multiscale toxicological study.

The use of quantum dots has spread widely into many applications. Works on the study of quantum dots on living organisms have had conflicting results on toxicity. There are no full-scale long-term toxicological studies with multiple administration of quantum dots.

Use of folic acid nanosensors with excellent photostability for hybrid imaging.

Sentinel lymph node (SLN) mapping and tumor-boundary delineation play a key role in cancer surgery, as they have great potential to reduce surgical intervention and increase relapse-free survival rates of patients. The autofluorescence imaging (AFI) method can improve the efficiency of tumor delineation and optimize the scope of surgical intervention, but there are still no fluorescent drugs that can be used with such a method to form a hybrid imaging technique. Another problem is bleaching when fluorescent dyes are conjugated with folic acid.