Supramolecular transcription of guanosine monophosphate into mesostructured silica.
There is large interest in replicating biological supramolecular structures in inorganic materials that are capable of mimicking biological properties. The use of 5-guanosine monophosphate in the presence of Na(+) and K(+) ions as a supramolecular template for the synthesis of well-ordered mesostructured materials is reported here. Mesostructured particles with the confined template exhibit high structural order at both meso- and atomic scales, with a lower structural symmetry in the columnar mesophase. Although a chiral space group can not be deduced from X-ray diffraction, analysis by electron microscopy and circular dichroism confirms a chiral stacking arrangement along the c-axis. Guanosine monophosphate based mesophases thus illustrate the possibility for specific molecular imprinting of mesoporous materials by genetic material and the potential for higher definition in molecular recognition.
['Bueno-Alejo|Carlos J|CJ|', 'Villaescusa|Luis A|LA|', 'Garcia-Bennett|Alfonso E|AE|']
D002942:Circular Dichroism D006157:Guanosine Monophosphate D008855:Microscopy, Electron, Scanning D012822:Silicon Dioxide D014961:X-Ray Diffraction
chirality electron microscopy mesoporous materials hybrid materials self-assembly