Biomineralization-Inspired Membranization Toward Structural Enhancement of Coacervate Community.

The design and assembly of protocell models that can mimic the features and functions of life present a significant research challenge with the potential for far-reaching impact. Inspired by the natural phenomenon of microbe-induced mineralization, a way is developed to induce the spontaneous formation of mineralized membrane on the surface of coacervate droplets utilizing Fe ions. In particular, the effect of Fe ions on the microstructure of droplets at the molecular level is dissected by combining theoretical and experimental approaches.

[Reconstruction of metacarpophalangeal joint defect by the second toe proximal interphalangeal joint with skin flaps].

Objective: To investigate the operative method and clinical efficacy of reconstructing metacarpophalangeal joint defect by the second toe proximal interphalangeal joint with skin flaps.

Methods: From March 2003 to January 2008, 26 cases (26 fingers) with metacarpophalangeal joint defect were treated, including 19 males and 7 females aged 18-36 years old (average 27 years old). Among them, 23 cases were caused by mechanical injury and the time from injury to operation was 1-6 hours; while 3 cases suffered from secondary injury due to trauma and the time from injury to operation was 3-12 months.