Reversible intercalation of large-capacity hemoglobin into in situ prepared titanate interlayers with enhanced thermal and organic medium stabilities.
The exfoliated single-layer titanate can rapidly restack and reversibly release heme protein simply by adjustment of the pH value. The composites have regularly layered structure and powdery morphology by their ideal layer-to-layer assembly, which provides the titanate nanosheet an unusual specific intercalation capacity of 5900 mg g(-1) for the protein. The bound and released proteins keep active relative to the intact protein. The hemoglobin thermal and organic solvent stabilities are improved by the protective environment of the titanate host.
Wang
Qigang
Q
State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Graduate School, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China.
Gao
Qiuming
Q
Shi
Jianlin
J
D006454:Hemoglobins / Q000737:chemistry*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D066298:In Vitro Techniques; D007364:Intercalating Agents; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures; D012997:Solvents; D013816:Thermodynamics; D014025:Titanium; D014961:X-Ray Diffraction
D006454:Hemoglobins; D007364:Intercalating Agents; D012997:Solvents; D014025:Titanium