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Fe3O4 nanoparticles were synthesized by co-precipitation method. 3D graphene was modified on the surface of Fe3O4 nanoparticles, and then covered with tetraethyl orthosilicate(TEOS) and vinyltrimethoxysilane (VTMO). Finally, the magnetic functional material Fe3O4@3DG@VTMO@MPS was synthesized by the polymerization of functional monomer 3-mercapto-1-propanesulfonate(MPS) on the surface using "thiol-ene" click chemistry. The structure, morphology and thermal stability of the functional materials were characterized by scanning electron microscopy(SEM), energy dispersive spectroscopy (EDS), dynamic light scattering (DLS), Fourier transform infrared spectroscopy(FLlR) and thermogravimetric analysis(TGA), respectively. The adsorption properties of this functional material for Lysozyme were studied by static adsorption experiments. The results show that the magnetic functional materials had nice adsorption capacity (the maximum adsorption capacity was 162.1 mg/g) and fast adsorption kinetics(the adsorption equilibrium could be reached in 150 min). The pseudo-second-order kinetic model was suitable for describing the adsorption kinetics of lysozyme on functional materials, and the adsorption process of functional materials on lysozyme was more in line with Langmuir adsorption model, indicating that adsorption is monolayer adsorption. Fe3O4@3DG@VTMO@MPS as solid phase extraction materials as solid phase extraction materials could be used for separation and enrichment of lysozyme, then combined with high performance liquid chromatography (HPLC) to detect honey in actual samples. [ABSTRACT FROM AUTHOR]

The preparation methods of NiCo2O4 materials are introduced, including hydrothermal/solvo-thermal method, sol-gel method, electrospinning method and so on. The existing problems and modification methods of NiCo2 O4 materials in the application process are described. Poor cycle stability, low energy density and functional density limit its practical application to a great extent. Therefore, many modification methods have been studied, mainly by changing the material structure and coating and doping conductive substances, and the development and application of NiCo2O4 materials are prospected. [ABSTRACT FROM AUTHOR]

Through a comparative investigation between domestic and abroad business administration nurturing modes in internationalization, integration and connotation, there are considerable limitations existed in domestic universities nurturing mode. This does not accord with the demands from the subject, society and universities etc. Therefore, based on both local industry university and business administration's actual situation, this paper constructs a dynamic process nurturing mode, which is taking the student as the center role, with the interactive and practice-research nurturing mode, and is to combine the knowledge-ability-quality as a whole. Furthermore, this paper proposes that it is necessary to explore the feedback and improving mechanisms. [ABSTRACT FROM AUTHOR]

Objective * To establish the reference intervals of serum anti-Müllerian hormone (AMH) in healthy women of childbearing age in different age groups in Shanghai. Methods * A total of 239 healthy women of childbearing age, who accepted staff physical examination in International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University School of Medicine, during July 2019, were enrolled and detected for serum AMH level using chemiluminescence immunoassay. After the outlier exclusion, 234 subjects were finally included and divided into six age groups. The reference intervals of serum AMH in healthy women of childbearing age in different age groups in Shanghai were established. The natural logarithm of serum AMH level and age were fitted by quadratic regression model. Results * The reference interval of serum AMH level was expressed as M(P5-P95), which were 4.76 (0.96-14.17) ng/mL in women aged 19-24 years, 6.03 (1.38-16.56) ng/mL in women aged 25-29 years, 4.30 (0.95-10.73) ng/mL in women aged 30-34 years, 2.40 (0.33-9.27) ng/mL in women aged 35-39 years, 1.04 (0.05-4.00) ng/mL in women aged 40-44 years, and 0.21 (0.01-3.04) ng/ mL in women aged 45-49 years. After logarithmic transformation, serum AMH level and age could well obey the quadratic regression model (R²=0.502). Conclusion * The reference intervals of serum AMH level established for the first time in healthy women of child-bearing age in Shanghai may provide the basis for the evaluation of ovarian reserve function of women of different ages. [ABSTRACT FROM AUTHOR]

BACKGROUND: Traumatic neuroma is a common complication of peripheral nerve injury, and basic research on peripheral nerve repair and regeneration through a traumatic neuroma model is rarely reported. OBJECTIVE: To establish and identify a traumatic neuroma model. METHODS: The study was approved by the Laboratory Animal Ethical Committee of Chinese PLA General Hospital. Fifteen healthy Sprague-Dawley rats aged 8 weeks old were selected to expose the sciatic nerve under microscope, and the sciatic nerve was cut 1 em away from the posterior gluteal muscle branch using microscissors. The proximal nerve was sutured to the surrounding muscle with 11-0 microlines, and the distal nerve was left open and reflexed. After 3 weeks, ultrasonic and histological examinations were used to verify the formation of neuroma. RESULTS AND CONCLUSION: (1) Ultrasound: After 3 weeks of modeling, the proximal nerve showed obvious spindle enlargement, which was a hypoechoic parenchymal nodule without echo. (2) Gross observation: The proximal nerves were enlarged and slightly stiffened, with fibrous connective tissue hyperplasia and adhesion to the surrounding tissues. (3) Hematoxylin-eosin staining indicated hyperplasia of fibrous tissue and disorderly growth of nerve fibers in the tumor. Immunofluorescence staining (S100, NF200) revealed irregular hyperplasia of Schwann cells and nerve axons in the tumor. (4) These results suggest that the model of traumatic neuroma is successfully constructed. [ABSTRACT FROM AUTHOR]