The application belongs to the technical field of pharmaceutical preparations, and particularly relates to a
chlorogenic acid temperature-sensitive
sol, a preparation method and application thereof, a
chlorogenic acid gel and application thereof. The
chlorogenic acid temperature-sensitive
sol provided by the application combines chlorogenic acid with anti-inflammatory activity and a temperature-sensitive material for the first time, and constructs a temperature-responsive in-situ gel
delivery system. The chlorogenic acid temperature-sensitive
sol is in a flowable sol state at
room temperature, and is convenient for administration in a
liquid state through a
syringe or an
enema device. When contacting a
human body cavity mucosa, the temperature-sensitive material triggers sol-gel
phase transition through intermolecular hydrophobic interaction, forms a semi-
solid three-dimensional network gel, and is closely adhered to the mucosa surface, so that the
drug is positioned and enriched in a
lesion area and is released for a long time, the symptoms of
ulcerative colitis are relieved, the
disease activity index is reduced, the colon length shortening and the
pathological damage of
colon tissue are improved, the technical defects such as uneven distribution of traditional suppositories and short
retention time of
enema liquid are overcome, and the chlorogenic acid temperature-sensitive sol has clinical application potential.