Adding a little graphene to mulberry leaves can not only enhance the appetite of silkworms, but also significantly increase the strength of the silk they spit out. Recently, the Black and White Wushuang entrepreneurial team, jointly established by students from Suzhou Medical College of Suzhou University and Soochow Business School, made a breakthrough in the research of additives for silkworms. For the first time, “black” nanographene oxide was used as the main component of the additive to help white silkworm cocoons be transformed into silkworms. sex.
Different from the commonly used plant-based additives on the market, the team finally focused on graphene oxide after repeated screening based on factors such as the feeding characteristics of silkworms and biocompatibility. After nanoscale processing and concentration screening, the research team finally achieved substantial results. They found that the silkworm babies that consumed this additive not only produced significantly heavier cocoons, but the toughness of the silk was also significantly enhanced.
But in practical applications, new problems emerged. During the base test, the additives easily fell off the mulberry leaves due to insufficient adhesion. Therefore, team members improved the surface adhesive and other methods to enable the additive to effectively adhere to the mulberry leaves for 7-10 days, thereby ensuring the silkworms’ intake of the additive. At the same time, in view of the time-consuming and labor-intensive problem of traditional spraying methods, they introduced drone spraying technology into the operation, thus greatly improving work efficiency.
Team leader Ren Yuying said, “The silkworm cocoons produced using this additive can be reeled into raw silk up to 6A level, which is the highest level for national silk enterprises’ commodity inspection. The silk yield rate of fresh cocoons can reach 18%. Moreover, this product has the characteristics of multiple effects in one, safe and non-toxic, and high cost performance, and has been generally recognized by many industry experts.” So far, the results of this project have been regarded as the first by team members The inventor successfully applied for two domestic and international invention patents and successfully published two SCI papers.
In Wangcun, Teyong Town, Yancheng City, Jiangsu Province, where sericulture is the leading industry, farmers who are the first to adopt the products and supporting technologies of the Black and White Unparalleled Entrepreneurship Team can earn up to 7,400 yuan per mu of mulberry garden, with significant efficiency gains. Gu Zhengjiang, director of the Yancheng Sericulture Technology Guidance Station, told reporters excitedly: “This year we have a saying, ‘You can earn 10,000 yuan by raising three silkworms.’ Due to the improvement in the quality of silkworm cocoons, this year’s purchase price has hit a record high. level.”
While promoting new technologies, team members also use their spare time to hold sericulture technology training courses, and provide technical support to many sericulture bases through various “technology to the countryside” methods such as telephone technical consultation and door-to-door solution of technical problems. , to help rural revitalization.
“The silk produced by silkworms that have eaten new graphene additives can be used in the field of biomedical materials such as medical surgical sutures. In addition, the high-grade raw silk fabrics produced are also favored by high-end luxury goods.” Huang Manying from Soochow Business School of Suzhou University said, “In the future, we will provide multiple categories of products and services and enter the high-end cocoonsilkmarket and the international market to play a high role. The greatest value of quality raw silk.”
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