Fig. 4: Mapping results of gastric cancer tissue and normal tissue.

a Scanning area of gastric cancer tissue, adjacent normal tissue scanning area. Area ① is the gastric cancer cell area, area ② is the gastric cancer intercellular substance area, area ③ is the normal cell area, and area ④ is the normal intercellular substance area. b three-dimensional topographic map of gastric cancer tissue, adjacent normal tissue scanning area. c The average spectrum curve of the Raman spectrum of ten random points of gastric cancer tissue detected by the DDCGRBM system and the corresponding Raman peaks of various substances. d The fitting curve of the average spectrum of Brillouin spectrum of 10 random points detected by the DDCGRBM system in gastric cancer tissue. e The three-dimensional distribution map of various chemical components in the scanned area of gastric cancer tissue (upper left), the three-dimensional distribution map of various chemical components in the scanned area of normal tissue adjacent to cancer (lower left), The three-dimensional distribution map of loss modulus and storage modulus in the scanned area of gastric cancer tissue (upper right), and the three-dimensional distribution map of storage modulus and loss modulus in the scan area of normal tissue adjacent to cancer (lower right). f Concentration changes of various substances in gastric cancer cells and gastric cancer intercellular substance compared with normal cells and normal intercellular substance. g Changes in the storage modulus and loss modulus of gastric cancer cells and gastric cancer interstitial cells compared with normal cells and normal interstitial cells