ERROR 1
ERROR 1
ERROR 2
ERROR 2
ERROR 2
ERROR 2
ERROR 2
Password and Confirm password must match.
If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)
ERROR 2
ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.
The parallel beams of light passing through the gelatin-based hydrogel in this vial are actually white when they enter the solution. The green color comes from the fluorescence of eosin Y, an organic dye. Hitendra Kumar, a postdoc in Keekyoung Kim’s lab at the University of Calgary, and his undergraduate labmates, Karla Villegas and Ethan Le, added the dye as a photoinitator to kick-start crosslinking reactions within the hydrogel. Eosin Y is their initiator of choice because it can be excited with visible light. They’re working on developing a visible light-controlled process for making 3D printed biomaterials from hydrogel “bioinks” with embedded animal or human cells. Using patterns of light projected into the bioink enables the researchers to study variations in the printed structure and image the cells embedded within.
Submitted by Hitendra Kumar
Do science. Take pictures. Win money. Enter our photo contest here.
Join the conversation
Contact the reporter
Submit a Letter to the Editor for publication
Engage with us on X