Design of surface nanostructures for chirality sensing based on quartz crystal microbalance

• Yinglin Ma,
• Xiangyun Xiao and
• Qingmin Ji

Beilstein J. Nanotechnol. 2022, 13, 1201–1219, doi:10.3762/bjnano.13.100

• volatile organic compounds (VOCs) with a remarkable degree of selectivity, which may promote the development of electronic nose systems for chiral analytes. Metal–organic frameworks. Metal–organic frameworks (MOFs) are unique porous crystalline materials fabricated by the self-assembly of metal ions or

• BiPyB = 1,4-bis(4-pyridyl)benzene. The achiral MOF structures were Cu3(BTC)2, Cu(BDC), and Cu(BPDC). The QCM sensor array successfully worked as an electronic nose system for detecting chiral odor molecules of limonene, 2-octanol, 1-phenylethanol, 1-phenylethylamine, and methyl lactate. The achiral MOF

Recent advances in green carbon dots (2015–2022): synthesis, metal ion sensing, and biological applications

• Aisha Kanwal,
• Naheed Bibi,
• Sajjad Hyder,
• Arif Muhammad,
• Hao Ren,
• Jiangtao Liu and
• Zhongli Lei

Beilstein J. Nanotechnol. 2022, 13, 1068–1107, doi:10.3762/bjnano.13.93

A chemiresistive sensor array based on polyaniline nanocomposites and machine learning classification

• Jiri Kroutil,
• Alexandr Laposa,
• Ali Ahmad,
• Jan Voves,
• Vojtech Povolny,
• Ladislav Klimsa,
• Marina Davydova and
• Miroslav Husak

Beilstein J. Nanotechnol. 2022, 13, 411–423, doi:10.3762/bjnano.13.34

• ]. However, the potential of such electronic nose systems varies according to the implemented classification system. Only between two and four different statistical analysis and classification algorithms were used in the cited literature [22][23][24][25]. In this work, we developed a robust system with seven

Metal oxide nanostructures: preparation, characterization and functional applications as chemical sensors

• Dario Zappa,
• Angela Bertuna,
• Elisabetta Comini,
• Navpreet Kaur,
• Nicola Poli,
• Veronica Sberveglieri and
• Giorgio Sberveglieri

Beilstein J. Nanotechnol. 2017, 8, 1205–1217, doi:10.3762/bjnano.8.122

• nanowires have been integrated into an electronic nose and successfully applied to discriminate between drinking and contaminated water. Keywords: chemical sensors; electronic nose; metal oxides; nanowires; Introduction Nanotechnology is the base for improving knowledge about materials and phenomena at

• oxidizing and a reducing gas interesting for environmental monitoring). Moreover, we have integrated metal oxide nanowires into an electronic nose and proved its ability in a real case study, more specifically the detection of water contamination. Results and Discussion Preparation of metal oxide

• -called electronic nose), could provide a robust and versatile tool for the unambiguous detection of volatile compounds. Considering carbon monoxide as target gas, it is evident that WO3 is the most sensitive material, at almost every temperature. The optimal temperature is 200 °C, exhibiting a response

CVD transfer-free graphene for sensing applications

• Chiara Schiattarella,
• Sten Vollebregt,
• Tiziana Polichetti,
• Brigida Alfano,
• Ettore Massera,
• Maria Lucia Miglietta,
• Girolamo Di Francia and
• Pasqualina Maria Sarro

Beilstein J. Nanotechnol. 2017, 8, 1015–1022, doi:10.3762/bjnano.8.102

• analytes. In addition, the possibility of miniaturizing such an array goes in the direction of creating a portable electronic nose. Conclusion We have shown the potential of a transfer-free deposition technique for the fabrication of graphene-based gas sensors by a process that is fully compatible with