Application value analysis of magnetic resonance imaging and computed tomography in the diagnosis of intracranial infection after craniocerebral surgery.

Background: Intracranial infection is a common clinical disease. Computed tomography (CT) and magnetic resonance imaging (MRI) have certain sensitivity and have good diagnostic efficacy.

Aim: To study the application value of MRI and CT in the diagnosis of intracranial infection after craniocerebral surgery.

Construction of aptasensors for sensitive detection of 8-OH-dG based on a diffusion mediated electrochemiluminescence quenching effect.

A DNA immobilization-free ECL aptasensor was developed for the detection of 8-hydroxy-2'-deoxygunosine based on the diffusion mediated ECL quenching effect. This ECL aptasensor exhibited a high sensitivity and low detection limit by combining homogeneous DNA reaction with dual signal amplifications: target-induced multi-DNA release and Exo I-assisted target recycling.

1,5-Bis[1-(2,4-dihy-droxy-phen-yl)ethyl-idene]carbonohydrazide dimethyl-formamide disolvate.

In the title compound, C(17)H(18)N(4)O(5)·2C(3)H(7)NO, two solvent mol-ecules are linked to the main mol-ecule via N-H⋯O and O-H⋯O hydrogen bonds, forming a hydrogen-bonded trimer. Intra-molecular O-H⋯N hydrogen bonds influence the mol-ecular conformation of the main mol-ecule, and the two benzene rings form a dihedral angle of 10.55 (18)°.

1-Acetyl-5-isobutyl-2-sulfanylidene-imidazolidin-4-one.

There are two independent mol-ecules in the asymmetric unit of the title compound, C(9)H(14)N(2)O(2)S. In the crystal, the mol-ecules are linked by N-H⋯O hydrogen bonds, forming a chain along the a axis.