Which products might be developed based on van der waals forces

One of the amazing products that have been developed under Van Der Waals forces is the suction cup that is used as an ankle and is used by workers as a safety gear on cleaning or constructing high-rise buildings.
Like geckos, they can scamper up walls, scuttle along ceilings and hang upside down on polished glass surfaces.

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom