Ozone depletion widely reported in the press. The especially rapid ozone depletion in Antarctica had previously been dismissed as a measurement error. Scientific consensus was established after regulation. While the Antarctic ozone hole has a relatively small effect on global ozone, the hole has generated a great deal of public interest because: Since the ozone layer absorbs UVB ultraviolet light from the sun, ozone layer depletion increases surface UVB levels (all else equal), which could lead to damage, including increase in skin cancer. This was the reason for the Montreal Protocol. Although decreases in stratospheric ozone are well-tied to CFCs and to
Layer by layer assembly technique. By the fact that each bilayer can be as thin as 1 nm, this method offers easy control over the thickness with 1 nm resolution. LbL has found applications in protein purification, corrosion control, biomedical applications, ultrastrong materials, and many more. LbL composites from graphene oxide harbingered the appearance of numerous graphene and graphene oxide composites later on. The first use of reduced graphene oxide composites for lithium batteries was also demonstrated with LbL multilayers. Layer by layer Layer-by-layer (LbL) deposition is a thin film fabrication technique. The films are formed by depositing alternating layers of oppositely charged