Publication Date:
2010-08-28
Description:
Porous materials find widespread application in storage, separation, and catalytic technologies. We report a crystalline porous solid with adaptable porosity, in which a simple dipeptide linker is arranged in a regular array by coordination to metal centers. Experiments reinforced by molecular dynamics simulations showed that low-energy torsions and displacements of the peptides enabled the available pore volume to evolve smoothly from zero as the guest loading increased. The observed cooperative feedback in sorption isotherms resembled the response of proteins undergoing conformational selection, suggesting an energy landscape similar to that required for protein folding. The flexible peptide linker was shown to play the pivotal role in changing the pore conformation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rabone, J -- Yue, Y-F -- Chong, S Y -- Stylianou, K C -- Bacsa, J -- Bradshaw, D -- Darling, G R -- Berry, N G -- Khimyak, Y Z -- Ganin, A Y -- Wiper, P -- Claridge, J B -- Rosseinsky, M J -- New York, N.Y. -- Science. 2010 Aug 27;329(5995):1053-7. doi: 10.1126/science.1190672.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20798314" target="_blank"〉PubMed〈/a〉
Keywords:
Adsorption
;
Carbon Dioxide/*chemistry
;
Crystallization
;
Diffusion
;
Dipeptides/*chemistry
;
Hydrogen Bonding
;
Ligands
;
Magnetic Resonance Spectroscopy
;
Models, Molecular
;
Molecular Dynamics Simulation
;
Molecular Structure
;
Physicochemical Processes
;
Porosity
;
Pressure
;
Protein Conformation
;
Protein Folding
;
Solvents
;
Thermodynamics
;
X-Ray Diffraction
;
Zinc/*chemistry
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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