Qualitative and quantitative adsorption mechanisms of zinc ions from aqueous solutions onto dead carp derived biochar.

The objective of this study is to investigate the qualitative mechanisms of Zn adsorption on carp biochars (CMB) produced from dead carp at different temperatures (450-650 °C) and their quantitative contribution. The pseudo second order kinetic model and the Langmuir model could fit the kinetic and isothermal adsorption data well, respectively. The intra-particle diffusion was the main rate-limiting step but not the only rate-limiting step.

[Mechanism of Effects of Genistein on the Reproductive System of Prepubertal Male Rats].

Objective: To study the effects of genistein (GEN) on reproductive system in prepubertal male rats.

Methods: Thirty SPF-rated male SD rats were randomly divided into control group (Con group), low-dose group (G1 group) and high-dose group (G2 group), with 10 rats in each group. Corn oil, 150 mg/kg and 300 mg/kg GEN dissolved in corn oil of equal volume were respectively administered every day and weighed the next day.