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A fluorescent probe (probe C) based on coumarin-thiourea conjugate was developed for selective detection of Hg2+. Addition of Hg2+to probe C induced obvious enhancement of the fluorescence intensity. Probe C exhibited good selectivity toward Hg2+and good anti-interference performance over other common competitive metal ions including Na+, K+, Ag+, Cu2+, Zn2+, Co2+, Ni2+, Mn2+, Mg2+, Fe2+, Fe3+, Ca2+and Al3+. The detection limit of probe C for Hg2+was calculated to be 0.44 nM. It was capable of detecting Hg2+ion in a wide pH range of 1.0–10.0.

Heat storage temperature, heat storage density, heat storage stability and the cost of heat storage are the breakthroughs for further development of heat storage materials. In this study, a new type of sensible heat storage material was prepared by using low-cost steel slag as the main component, and at the same time, an effective way of recycling steel slag was provided. The stabilizable shaped steel slag powder was obtained by high temperature pretreatment, and the optimal high temperature pretreatment temperature was found to be 850 °C. Through the analysis of the effects of different pretreatment steel slag content and different sintering temperatures on the organization and properties of heat storage materials, it was found that a large number of elemental migration and oxide solid solution phenomena occur during the sintering process, and the melting of low melting point solid solution occurs during the high temperature treatment process. The steel slag heat storage material has the best performance when the content of pretreated steel slag is 60 wt% and the sintering temperature is 1200 °C. Its compressive strength is stabilized at about 80 MPa, thermal conductivity is 1.13 W/(m·K), and thermal density is 1222.168 J/g in the range of 50–1000 °C. More importantly, it has excellent thermal cycle stability. After 300 thermal cycles, the shape of the samples remains unchanged, and the samples retained 94.4 % of the compressive strength, 98.8 % of the thermal conductivity and the thermal density was almost unchanged. In addition, the cost of the sample was only $0.58/kWh. The results indicate that this study provides a novel low-cost method for the preparation of steel slag sensible heat storage materials, which has high potential for application in heat storage systems.

In addition to maintaining hemostasis, platelets play an important pathological role driving tumor growth and metastasis. One mechanism by which platelets contribute to tumor growth and metastasis is their potent promotion of angiogenesis. This is accomplished in large part by the numerous factors stored, generated, and released by platelets that have the potential to influence every stage of angiogenesis. In this review, we provide an overview of the many platelet-secreted pro- and anti-angiogenic factors. We examine the basic science and clinical evidence supporting their contributions to tumor angiogenesis. Finally, we review the pharmacological regulation of their release from platelets and discuss the potential of anti-platelet drugs as adjuvant anti-angiogenesis therapy.

The reaction allows the conversion of benzyl chlorides to benzyl cyanides.