From Vatican Insider:
The Shroud of Turin, the linen cloth that according to an ancient tradition, wrapped the body of Jesus after crucifixion, actually came into contact with the blood of a dead man who suffered many serious injuries. This is what emerges from a research on a fabric fiber extracted from the dorsal imprint of the cloth, around the feet area. The study was conducted by two CNR institutes, the Istituto Officina dei Materiali (IOM-CNR) in Trieste and the Institute of Crystallography (IC-CNR) in Bari, together with the Department of Industrial Engineering of the University of Padua, the latter uncovered the news with a statement. An article detailing the discovery findings and measurements was published in the American journal PlosOne and titled “New Biological Evidence from Atomic Resolution Studies on the Turin Shroud”.
…According to Professor Giulio Fanti of the University of Padua, the analyses show how “the peculiar structure, size and distribution of the nanoparticles cannot be artifacts made over the centuries on the fabric of the Shroud.” Many fanciful reconstructions of the Turin Shroud being a painted object are once again denied.” Additionally, Fanti says, “the wide presence of creatinine particles bound to ferrihydrite particles is not a situation typical of the blood serum of a healthy human organism. Indeed, a high level of creatinine and ferritin is related to patients suffering of strong polytrauma like torture. Hence, the presence of these biological nanoparticles found during our experiments point a violent death for the man wrapped in the Turin shroud.”