Water is a polar molecule, meaning it has a positive end and a negative end. This polarity allows water molecules to form hydrogen bonds with each other and with other molecules. These hydrogen bonds can hold molecules in place or allow them to move freely.
The new technique uses a type of microscopy called atomic force microscopy (AFM) to image molecules in water. AFM uses a sharp probe to scan the surface of a sample, and the probe can detect the individual atoms in a molecule.
By using AFM, scientists can watch how molecules twist and turn in water. This information can help them to understand how molecules interact with water, which is essential for understanding many biological processes. For example, water is involved in the folding of proteins, the transport of nutrients, and the removal of waste products from cells.
The new technique could also be used to study the interactions between molecules and other solvents. This could lead to the development of new drugs and materials.
"We are excited about the potential of this new technique to study molecules in water," said lead researcher Professor Xixiang Zhang of the University of Illinois at Urbana-Champaign. "We believe that this technique will provide new insights into how molecules interact with water, which is essential for understanding many biological processes."
The study is published in the journal Nature Communications.
