This article is very ambiguous and unclear as it appears they are talking about scrolls that may be from Philodemus, but the article is about where Plato is buried:
A “bionic eye” enabled his research team to read about 1,000 words from the history of the Academy by Philodemus of Gadara, an Epicurean poet and philosopher. With this new technology, they penetrated layers of carbon with optical coherence tomography (OCT) and infrared hyperspectral imaging techniques.
The emerging technology known as OCT performs high-resolution cross-sectional imaging commonly used to take pictures of the back of an eye using reflected light. Infrared hyperspectral imaging has a variety of subsets from near to mid to far. Simply put, it can reveal hidden features of an object that may not be visible to the naked eye. These techniques brought 2,000 year old text to the surface.
Details from Plato’s life uncovered
Researchers believe that they have identified the location of Plato’s burial site.
According to their findings, his final resting place appears to be in a private area in a garden in the academy, near a shrine to the Muses. Roman dictator Sulla destroyed the Platonic Academy in 86 BCE, but archeologists rediscovered it in the 20th century. Currently open to the public, archeologists have thoroughly examined the site, but we always seem to uncover something else.