Objective To evaluate the consistency of global acne grading system (GAGS) and acne lesion counting. Methods After training 3 dermatologists evaluated 60 acne patients by GAGS and skin lesion counting respectively in randomized order sequentially, and evaluated again 5 days later. Results The kappa-value of GAGS (consistency) was 0.675 among 3 different dermatologists, and 0.847 for the same desmatologist. The kappa-value among the 3 different dermatologists and the same dermatologist for the total lesion count was 0.426 and 0.413 respectively; for pustule count was 0.446 and 0.407 respectively. The kappa-value of total number of the inflammatory lesion counting was 0.429 for the 3 different dermatologists and the kappa-value was

A molecularly imprinted two-dimensional photonic crystal hydrogel sensor was developed with erythromycin as imprinted molecule, polystyrene two-dimensional photonic crystal as templates, methanol as solvent, methacrylic acid as monomers and ethylene glycol dimethylacrylate as cross-linkers.The imprinted molecule was removed by methanol/acetic acid (9∶1, V/V).The results showed that the diameter of Debye ring increased 6 mm when the concentration of EM changed from 0 to 1×10-6 mol/L.Namely the lattice spacing decreased 30 nm.In addition, the diameter of Debye ring only increased 1.5 and 2.0 mm when the hydrogel immersed in 1×10-6 mol/L roxithromycin (RM) or erythromycin ethylsuccinate (EEs) solution.The result indicated that the sensor had high selectivity and could be used in determination of erythromycin with low cost and easy operation.