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With the improvement of living standard, consumers have higher requirements on functions of cosmetics. Nanocarrier systems can offer remarkable features and have potential in targeted-oriented active molecule delivery. In order to improve the functions of cosmetics, nanocarrier system has been widely used in cosmetics. Nanoemulsions, liposomes and nanostructured lipid carriers (NLCs) have attracted considerable attention as three main nanocarrier systems for cosmetics and personal care products. They have a lot of advantages such as improving stability, improving tissue macrophages distribution, increasing solubility, bioavailability, protection of actives from toxicity, enhancing pharmacological activity and intracellular uptake, targeted delivery and sustained delivery. In this paper, the definition, classification and micro-structure of these three carriers were reviewed. The applications of nanoemulsions, liposomes and NLCs in cosmetics were discussed. The beneficial aspects of nanoemulsions, liposomes and NLCs in cosmetics are very broad. They have very promising future for the delivery of cosmetic active components/ingredients and for the production of high-quality cosmetics.

Aim: To develop a nursing early warning system in children’s hospital during the outbreak of the novel coronavirus pneumonia, and to accomplish the construction and application of this system, so as to provide decision-support of the prevention and control for COVID-19 in children’s medical institutions. Method: Children’s hospital nursing early warning system was divided into three modules: hospital nursing early warning platform includes internal and external early warning platform, nursing staff early warning program includes protection, human resources early warning plan and patient early warning program includes outpatient, emergency and ward early warning plan. The data of epidemic training, assessment, prevention and control screening from January to June 2020 were collected from the nursing early warning system to evaluate the application effect of the system. Results: A total of 18 procedures and specifications were formulated, nine hospital-level trainings and about 1000 department-level trainings were organized, two hospital-level assessments (pass rate 95.6% and 98.2%), and 78 nurses were reserved, and 10 popular science articles, five popular science videos were published during the application of the nursing early warning system. A total of 583,435 children and 139,308 caregivers were screened in outpatient, emergency and wards during pre-checks, 2385 suspected cases of novel coronavirus pneumonia were confirmed (0.41%) after the screening and 1 case (0.0002%) was finally confirmed. Conclusion: The nursing early warning system of children’s hospital can prevent and control the novel coronavirus pneumonia epidemic from each module, ensure early warning and triage of suspected infected patients, reduce the risk of cross-infection in hospital and improve the safety of the children’s hospital medical environment.