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一铁碎片被意外植入人体内,并在体内呆了16a。该碎片经历了显著的形态和化学变化。铁碎片的表面呈现葡萄状或者鲕粒状。碎片转化为铁的氧化物和氢氧化物以及钙的磷酸盐(可能为磷灰石)。在碎片中确认出Fe、O、P、Ca、Cl、Na、K和Mg等元素。从边缘到核心,Fe含量增加,P和Ca含量减少。碎片从人身体内吸附了Ca、P、O、Cl、Na和K。研究表明,磷灰石或者其他钙的磷酸盐能够在人体里保持稳定达16a。然而,钙的磷酸盐与铁的氧化物或者氢氧化物混合,可能还不足以坚固到与骨头结合。本研究也表明,铁或者含铁合金在人体内不够稳定。
An iron fragment was accidentally implanted in the body and left in the body. The fragment has undergone significant morphological and chemical changes. Iron fragments appear grapes or oolitic surface. Fragments are converted to iron oxides and hydroxides as well as calcium phosphates (probably apatite). In the debris identified Fe, O, P, Ca, Cl, Na, K and Mg and other elements. From the edge to the core, Fe content increased, P and Ca content decreased. Debris adsorbs Ca, P, O, Cl, Na, and K from the human body. Research shows that apatite or other calcium phosphates are stable in the body up to 16a. However, calcium phosphates, mixed with iron oxides or hydroxides, may not be strong enough to bind to bones. This study also shows that iron or iron-containing alloys are not stable enough in the human body.