金纳米三角片对家蚕生长状况和蚕丝性质的影响

本研究通过足部注射的方式将金纳米三角片导入5龄家蚕体内,研究了金纳米三角片对家蚕生长状况以及蚕丝性质的影响。结果表明,金纳米三角片的摄入大幅度降低了家蚕的成活率。总体来看,家蚕平均体质量、体长较对照组有所降低,但外貌无显著变化。X射线衍射(XRD)和红外光谱(FTIR)结果表明,与对照组相比,摄入金纳米三角片的试验组蚕丝的晶体或二级结构并未遭到破坏。该研究可以为金纳米三角片的生物安全性评估提供了一定参考。

保幼激素活性物质处理后家蚕茧丝的力学性质

保幼激素及保幼激素剂处理家蚕幼虫后有全茧量及茧层量明显增加的效果(Akai等、1971,Akai、1982;赤井、涩川,1984);而且,有在不同龄期对家蚕多次处理保幼激素剂茧层量增加26％的事例报告(赤井等,1985)。另一方面。

纳米颗粒添饲家蚕生产改性蚕丝的研究进展

蚕丝作为一种优质的天然纤维在纺织、医疗、化妆品等领域广泛应用。与此同时,为进一步提高蚕丝纤维应用价值,采用多种方式对蚕丝纤维进行改性,包括表面化学修饰、物理工艺处理、基因工程改造等。近年来,利用纳米技术改性天然纤维成为一种新的趋势,其中,通过对家蚕添食纳米颗粒被发现能够改变蚕丝纤维力学、电子、光学等多种性能,拓展了蚕丝纤维在柔性电子皮肤、医学组织工程、生物传感器等新兴领域的应用。本文将综述国内外纳米颗粒添食饲喂家蚕生产改性蚕丝的研究进展、存在问题及发展趋势,有望为未来相关领域的研究提供参考。

The Mulberry Silkworm--A New Source of Bioactive Proteins

Beyond the commonly known proteins built silk fibres--fibroin and sericin, there are almost 300 bioactive proteins in the silkworm haemolymph. The aim of this work was to present bioactive compounds obtained from the silk fibre and isolated from the body of this insect, which may be used in medical and pharmacological applications. The most important are bioactive proteins. However, the juvenile stages of mulberry silkworm possess other very valuable active substances.

Effect of vertebrate hormones and prostaglandins on growth, silk quality and metabolic activities of Bombyx mori L

The economic importance of silkworm has moved biologists to explore various intricate mechanisms of the action of vertebrate hormones. The dietary administration of several vertebrate hormones and prostaglandins enhanced both developmental and metabolic processes of silkworm, Bombyx mori L. The main objective of sericulture research is to apply the results to achieve superior quality silk and greater output, to apply lab findings to achieve desirable ecenomic results.