简介：TheagingbehaviorsofirradiatedtungstenbyhighenergySi3＋andH＋ionsaremainlyinvestigatedusinginternalfriction（IF）methodcombinedwithSEMtechnology.TheSEManalysisindicatesthatmoresevereirradiationdamageappearsinthesurfaceofsimultaneousdualSi3＋H＋irradiatedspecimenthanthatinthesequentialdualSi3＋H＋irradiatedspecimenorthesingleSi3＋irradiatedspecimensbecauseofthesynergisticeffectofSiandHirradiation.TheIFbackgroundoftheirradiatedsampleisaboutoneorderofmagnitudehigherthanthatoftheunirradiatedsampleowingtotheexistenceofhighdensityfreshdislocationsinducedbySi/Hirradiation,InthesequentialdualSi3＋andH＋irradiatedspecimen,thehydrogenSnoek-Ke-Koster（SKK）peakassociatedwiththemovementofdislocationsdragginghydrogenatomsisobservedanditsheightdecreaseswithagingtimeatroomtemperature.AsforthesimultaneousdualSi3＋H＋irradiatedspecimen,however,thereisnosuchhydrogenSKKpeak.Thereasoncanbeexplainedashydrogendiffusionandpinningeffectofdislocations.

简介：近日，国际学术刊物《自然纳米技术》发表了南开大学化学学院高分子化学研究所史林启教授与美国加州大学洛杉矶分校卢云峰教授等多个课题组合作完成的项目成果。该成果研究了一种具有解酒保肝作用的纳米复合酶，可治疗和预防酒精中毒，让醉酒者在十几分钟内恢复清醒。

简介：据报道，香港科技大学物理学系蒙民伟博士纳米科学讲座教授沈平的研究团队近日发现，于纳米结构下的石墨烯，其电子性能小至10μm仍可保持，此发现突破科学界纪录。

简介：