Search for "needle sensor" in Full Text gives 3 result(s) in Beilstein Journal of Nanotechnology.
Beilstein J. Nanotechnol. 2016, 7, 1885–1904, doi:10.3762/bjnano.7.181
Beilstein J. Nanotechnol. 2015, 6, 529–536, doi:10.3762/bjnano.6.55
Beilstein J. Nanotechnol. 2014, 5, 407–412, doi:10.3762/bjnano.5.48