Any bit of matter in a liquid is pummelled by forces from the surrounding bath of liquid molecules. So a minute particle in a fluid is always wandering off and after a while finds itself at a random location far from where it started. Fascinating things could be done if one could get microscopic particles, a thousand times smaller than the width of a strand of hair, to stay at the same location for long spells of time. Scientists have developed several different ways to “trap” objects in liquids all of which depend on external forces being applied on the object to hold it in place. Most of these methods rely on the mass of the object, because of which they fail to work on interesting objects such as proteins and several other kinds of small building blocks. This work presents a conceptual shift in the trapping of objects in liquids. We have shown that appropriately tailoring the space around an object in solution can serve as a way to trap it without applying any external forces. The technique depends on the electrical charge carried by the object and can work just as effectively on relatively large objects as it does on small ones. Unlike existing methods, this new concept permits traps to be multiplexed with no increase in complexity, thus enabling us to trap and position several thousand nano-objects at defined locations in close proximity to each other. Not only will this technique enable us to study the properties of isolated single objects and their interactions with each other, but it should also enable researchers in fields ranging from biology to materials science to assemble novel materials at the nanoscale. This project will go beyond the purely electrical interaction and exploit other passive inherent forces between an object and its environment in order to direct and control the behavior of matter at the nanoscale.