The 39th volume of the journal contains articles that represent the research results in properties and some specific features of application metal-organic frameworks as materials with an extraordinarily large accessible surface area, green synthesis methods of carbon quantum dots, nanocrystals of titanium suboxide and analysis of the role of carbon nanotubes additions in improving properties of cement-based composites. This journal's volume will be useful to specialists in opto- and microelectronics and chemists whose activity is related to the synthesis and investigation of nanomaterials.