Controlled supramolecular structure of guanosine monophosphate in the interlayer space of layered double hydroxide

Guanosine monophosphates (GMPs) were intercalated into the interlayer space of layered double hydroxides (LDHs) and the molecular arrangement of GMP was controlled in LDHs. The intercalation conditions such as GMP/LDH molar ratio and reaction temperature were systematically adjusted. When the GMP/LD...

Full description

Saved in:
Bibliographic Details
Published in:Beilstein journal of nanotechnology 2016, Vol.7 (1), p.1928-1935
Main Authors: Gwak, Gyeong-Hyeon, Kocsis, Istvan, Legrand, Yves-Marie, Barboiu, Mihail, Oh, Jae-Min
Format: Article
Language:English
Subjects:
Adsorption
Amino acids
Chemical bonds
Chemical Sciences
Clay
Full Research Paper
guanosine monophosphate
High temperature
Hydrogels
hydrogen bond
Hydrogen bonds
Hydroxides
Interlayers
layered double hydroxide
Nanoscience
Nanotechnology
Polymerization
Prebiotics
ribbon structure
Stoichiometry
supramolecular assembly
Temperature control
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Guanosine monophosphates (GMPs) were intercalated into the interlayer space of layered double hydroxides (LDHs) and the molecular arrangement of GMP was controlled in LDHs. The intercalation conditions such as GMP/LDH molar ratio and reaction temperature were systematically adjusted. When the GMP/LDH molar ratio was 1:2, which corresponds to the charge balance between positive LDH sheets and GMP anions, GMP molecules were well-intercalated to LDH. At high temperature (100 and 80 °C), a single GMP molecule existed separately in the LDH interlayer. On the other hand, at lower temperature (20, 40 and 60 °C), GMPs tended to form ribbon-type supramolecular assemblies. Differential scanning calorimetry showed that the ribbon-type GMP assembly had an intermolecular interaction energy of ≈101 kJ/mol, which corresponds to a double hydrogen bond between guanosine molecules. Once stabilized, the interlayer GMP orientations, single molecular and ribbon phase, were successfully converted to the other phase by adjusting the external environment by stoichiometry or temperature control.
ISSN:2190-4286
2190-4286
DOI:10.3762/bjnano.7.184