A porous bio-material and a method of preparation thereof. The method includes the following steps. First, a body is formed by mixing a bio-ceramic powder, a water-absorbing natural organic material and a liquid. The water-absorbing natural organic material is selected from the group consisting of carrageenan...http://www.google.com/patents/US8052787?utm_source=gb-gplus-sharePatent US8052787 - Bio-material and method of preparation thereof