nanomaterials for BioImaging

We are happy to share with you our newest publication in Materials Horizons, fruit of an international collaboration. Congratulations to Alejandro, Marina, Dirk and Emma from the group! #bioimaging #NIR #nanotechnology #NIRimaging #Ag₂S #nanothermometry
Details follow in the comments. 🧵 1/4

https://pubs.rsc.org/en/content/articlehtml/2024/mh/d4mh01016g

Oct 1, 2024 at 9:47amWeb
Show threadnanomaterials for BioImagingOct 1, 2024
Researchers at nanoBIG have participated in this work to create brighter and more efficient silver sulfide (Ag₂S) nanoparticles, which could boost technologies like bioimaging and temperature sensing using light. These particles emit light in the near-infrared (NIR), which is great for deep tissue optical imaging in medical fields. NIR light can "see" a few cm into the body without damaging cells. 🧵 2/4
Show threadnanomaterials for BioImagingOct 1, 2024
The light emission efficiency ( quantum yield) was improved up to 10% by introducing a ZnS shell to Ag2S/Ag2S(S,Se) nanoparticles. Additionally, the influence of temperature on this quantum yield was studied in chloroform and water. This is crucial for developing tools like nanothermometers—tiny sensors that track temperature changes remotely by light. 🌡️ 🧵3/4
Show threadnanomaterials for BioImagingOct 1, 2024
The Ag2S/Ag2S(S,Se) nanoparticles’ brightness was further demonstrated by performing imaging experiments underneath up to 2 cm of chicken breast from the local super market at low excitation powers. This further demonstrated their excellent capabilities as contrast agents for NIR imaging. 🧵 4/4