Document 0514 DOCN M9490514 TI Use of molybdenum telluride as a substrate for the imaging of biological molecules during scanning tunnelling microscopy. DT 9411 AU Campbell SA; Muller DJ; Jungblut H; Giersig M; Tomm Y; Lewerenz HJ; University of Portsmouth, Department of Chemistry, UK. SO Analyst. 1994 May;119(5):727-34. Unique Identifier : AIDSLINE MED/94346582 AB Scanning tunnelling microscopy was used to image biological molecules including supercoiled deoxyribonacetic acid and specific retrovirus enzymes, the reverse transcriptases of the avian myeloblastosis virus, the moloney murine leukaemia virus and the human immunodeficiency virus. Measurements were carried out on graphite and Group VI transition metal dichalcogenide layered crystals. Images obtained with graphite could not be unequivocally interpreted and attachment appears to occur solely at surface defect sites. The layered crystal MoTe2 shows different imaging properties. The bimolecules are clearly visible, distributed over the semiconductor surface, and the molecular shapes and dimensions show good correlation with structure predictions. DE DNA, Superhelical/*CHEMISTRY Microscopy, Scanning Tunneling/*METHODS *Molybdenum Retroviridae/CHEMISTRY/ENZYMOLOGY Reverse Transcriptase/*CHEMISTRY *Tellurium JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).