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.
A monochrome multifunction printer (also called all-in-ones) combines a monochrome laser printer, color scanner, copier, and sometimes a fax machine into a single device. As with a color multifunction printer, having all these functions in one unit not only saves room, but it can also be more affordable than buying separate individual devices.