This indicates a local stability of the gel and means a transformation of continuous gel into a system of micro-domains suspended in water. The pristine hydrogel of positively charged diamond particles (~5 nm in size, concentration ~5 wt %), even by four-fold dilution below its formation critical point, ( C* ~ 4 wt %) retains practically the original structure where single particles are joined into small groups integrated into chain fractal-type aggregates creating a network. Joint approaches for data analysis in reciprocal and direct space have been developed to restore a multilevel structure. Small angle neutron scattering has been used as a method for characterization of the gel. The structure of a hydrogel consisting of diamond nanoparticles formed by the explosion method has been studied.
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