TEM (a, b, and c) images of prepared mesoporous silica nanoparticles with mean outer diameter: (a) 20nm, (b) 45nm, and (c) 80nm. SEM (d) image corresponding to (b). The insets are a high magnification of mesoporous silica particle.
The Definition of a Monochrome Laser Printer. Monochrome laser printers are machines that print text and images from computers by using a laser beam to control where a single color is applied to paper. They're often faster than other types of printers and can generally produce large numbers of black-and-white documents cheaper than other printers.
These type of 3D printers have a huge advantage. You can print in full-color by adding pigments to the binder (usually cyan, magenta, yellow, black and white). This made it the preferred method for the popular 3D selfies. The drawback of this 3D printing method is the structural integrity of the objects.