Aging Characteristics and Ecological Effects of Primary Microplastics in Cosmetic Products Under Different Aging Processes.

Microplastics are becoming an increasingly environmental concern, but only a few studies have focused on primary microplastics. Herein, four primary microplastics (Lapis, Jade, Topaz and White) commonly used in cosmetic products were selected to investigate the effects of sunlight, seawater, and soil aging on their environmental behaviors. After sunlight and seawater aging, the surfaces of all four microplastics developed breaks and cracks, with particle sizes decreased and specific surface areas increased.

UV-Irradiation Facilitating Pb Release from Recycled PVC Microplastics.

Microplastics (MPs) are ubiquitously in ecosystem and have evoked wide attention. The potential risk of MPs to the ecosystems is associated with MPs and the additives such as Pb, which serves as a traditional stabilizer. However, the release of Pb from MPs remains largely unknown.

Characterizing Bioinks for Extrusion Bioprinting: Printability and Rheology.

In recent years, new technologies based on 3D bioprinting have emerged as ideal tools with which to arrange cells and biomaterials in three dimensions and so achieve tissue engineering's original goals. The simplest and most widely used form of bioprinting is based on pneumatic extrusion, where 3D structures are built up by drawing patterns of cell-laden or non-cell-laden material through a robotically manipulated syringe. Developing and characterizing new biomaterials for 3D bioprinting (i.