4results about How to "Simple and fast manufacturing method" patented technology

This invention belongs to the field of feed technology, specifically relating to a beef cattle feed containing Artemisia annua and its preparation method. Artemisia annua is added to an acetic acid aqueous solution, boiled at a specified temperature for a specified time, filtered, and cooled. The cooled Artemisia annua is then mixed with forage to obtain the beef cattle feed containing Artemisia annua. The preparation method of this application is simple and convenient, greatly improving the palatability of Artemisia annua and effectively increasing its utilization rate. Furthermore, experiments have shown that feeding cattle with the beef cattle feed prepared in this application as roughage does not adversely affect their growth and development; the average weight gain of cattle is the same as that fed with ordinary roughage. Moreover, the beef cattle feed of this application can reduce the incidence of foot-and-mouth disease in cattle, helping them resist the disease.

This invention provides a biological filter media ceramic particle for removing perchlorate from water and its preparation method. The preparation method of the biological filter media ceramic particle of this invention includes mixing the filter media ceramic particle with an iron modifier and performing a shaking treatment to obtain iron-modified biological filter media ceramic particle. The iron modifier impregnation of the biological filter media ceramic particle ensures sufficient contact between iron ions and the biological filter media ceramic particle, thereby loading the iron ions onto the biological filter media ceramic particle. The modified biological filter media ceramic particle can remove phosphorus, ammonia nitrogen, and COD, and also enhances the adsorption capacity of the biological filter media ceramic particle for perchlorate, which can significantly improve the removal efficiency of the biological filter media ceramic particle for perchlorate.

The invention belongs to the technical field of animal husbandry medicines, and particularly relates to a wormwood extract, a preparation method and application of the wormwood extract in preparation of a medicine for preventing foot-and-mouth disease of beef cattle. The method specifically comprises the following steps: adding artemisia desertorum into an acetic acid aqueous solution, boiling at 60-100 DEG C for specified time, filtering and cooling; and adding the cooled artemisia desertorum into an ethanol solution, soaking for a second time at room temperature, and carrying out material-liquid separation to obtain a leaching solution, namely the artemisia desertorum extract. The wormwood extract can prevent cattle from being infected with the foot-and-mouth disease, in the high-incidence period of foot-and-mouth disease infection, the morbidity of cattle taking the wormwood extract is only 10%, the morbidity is reduced by 10% compared with that of cattle taking common diet (the morbidity is 20%), the foot-and-mouth disease of cattle is effectively prevented, and no adverse effect is generated on growth and development of the cattle. In addition, the wormwood is wide in source and low in cost, and the preparation method is simple, convenient and suitable for large-scale breeding and popularization.

This invention discloses a cell membrane-targeted H2S two-photon fluorescent probe, its preparation method, and its applications. This probe not only possesses excellent optical properties such as near-infrared fluorescence emission at 650 nm, a large Stokes shift of 140 nm, and two-photon excitation characteristics, exhibiting advantages such as low excitation-emission light scattering, low tissue absorption, and strong penetration, but also demonstrates excellent analytical and detection performance. Its pyridinium and sulfonic acid groups prevent it from entering the cell interior, allowing it to adhere only to the cell membrane surface, thus endowing the probe with excellent cell membrane localization capabilities. The probe uses a 2,4-dinitrobenzenesulfonyl group as both the H2S recognition group and a fluorescence quencher. Because the 2,4-dinitrobenzenesulfonyl group is adjacent to the pyridinium group, it is located on the outer surface of the cell membrane, enabling two-photon fluorescence imaging of H2S released transmembrane from cells.