CIC biomaGUNE has developed a technique that involves the incorporation of nanoparticles of gold and silver into conventional ink as an advanced solution in identifying molecules in fields such as medical diagnosis, biology, the environment or safety.
The system developed by the laboratory at the centre, run by Luis Liz Marzán, has been published in the scientific journal Small. Its principal contribution consists of facilitating and reducing the cost of creating the chemical substrates used to identify molecules in any field of activity.
The basis of the project undertaken by the team of Liz Marzán and led by Lakshminarayana Polavarapu (post-doctorate researcher in the team), lies in a technique known as dispersive raman spectroscopy, discovered by Indian scientist Sir C.V. Raman, who was awarded the Nobel Prize for Physics in 1930.
The technique is used in multiple fields, such as medical diagnosis and environmental control, even though it has some limitations, such as the difficulty in obtaining substrates that are sufficiently reliable and reproducible and that, at the same time, are not too expensive or complicated to produce.
The proposal of Liz Marzán’s team is to dispense with prefabricated substrates, thereby overcoming their limitations and difficulties, and replace them with ink containing nanoparticles of gold or silver.