Nanospace Materialsby Science and Technology of Advanced MaterialsBack to Focus Issues Guest Editors: Qiang Xu, Kevin C-W Wu and Yusuke YamauchiScience and Technology of Advanced Materials (STAM) is pleased to present this 2015 focus issue on: Nanospace Materials. We hope you will enjoy reading all the articles published in this issue. Article TitleAuthor Focus on nanospace materialsQiang Xu, Kevin C-W Wu & Yusuke Yamauchi Host–guest chemistry of mesoporous silicas: precise design of location, density and orientation of molecular guests in mesoporesMinoru Sohmiya, Kanji Saito and Makoto Ogawa Recent progress in the synthesis of metal–organic frameworksYujia Sun and Hong-Cai Zhou Carbonization and oxidation of metal–organic frameworks based on 1,4-naphthalene dicarboxylatesJiun-Jen Chen, Ya-Ting Chen, Duraisamy Senthil Raja, Yu-Hao Kang, Pen-Chang Tseng and Chia-Her Lin Metal–organic frameworks for electronics: emerging second order nonlinear optical and dielectric materialsShruti Mendiratta, Cheng-Hua Lee, Muhammad Usman and Kuang-Lieh Lu Encapsulation of palladium porphyrin photosensitizer in layered metal oxide nanoparticles for photodynamic therapy against skin melanomaZih-An Chen, Yaswanth Kuthati, Ranjith Kumar Kankala, Yu-Chuan Chang, Chen-Lun Liu, Ching-Feng Weng, Chung-Yuan Mou and Chia-Hung Lee Hard-templating of chiral TiO2 nanofibres with electron transition-based optical activityCui Wang, Shaohua Liu, Yingying Duan, Zhehao Huang and Shunai Che