Equipment:  Advanced Laser Fluorescence Apparatus for       Interfacial Mass Transfer Studies
{'Code': '07020000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CBET', 'LongName': 'Div Of Chem, Bioeng, Env, & Transp Sys'}}
{'SignBlockName': 'Robert M. Wellek', 'PO_EMAI': None, 'PO_PHON': None}
An advanced laser fluorescence apparatus is developed to determine the          surface or translational diffusion coefficients of fluorescent-labeled          probes in monomolecular films at air/water and oil/water interfaces.            This improved apparatus is based on a simple Moire technique for                measuring surface diffusion using fluorescence photobleaching recovery          (FPR) where the film is bleached in a periodic pattern.  This new               experimental technique also permits an extended study of surface                diffusion to interfacial systems previously inaccessible to study by            the radiotracer method.  In addition, it is possible to separate                between flow and diffusional transport processes occurring in                   monomolecular films.  This apparatus is being used to continue previous         work on surface diffusion in monomolecular films, in particular, to             determine reliable values of the surface diffusion coefficient and its          surface concentration and temperature dependence within various                 monolayer states in order to elucidate the nature of two-dimensional            mass transfer at fluid interfaces.  The laser fluorescence apparatus            also is used in other research projects.
{'FirstName': 'Ronald', 'LastName': 'Neuman', 'PI_MID_INIT': 'D', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Ronald D Neuman', 'EmailAddress': 'rdneuman@eng.auburn.edu', 'NSF_ID': '000430773', 'StartDate': '09/15/1985', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Auburn University', 'CityName': 'AUBURN', 'ZipCode': '368490001', 'PhoneNumber': '3348444438', 'StreetAddress': '321-A INGRAM HALL', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Alabama', 'StateCode': 'AL', 'CONGRESSDISTRICT': '03', 'CONGRESS_DISTRICT_ORG': 'AL03', 'ORG_UEI_NUM': 'DMQNDJDHTDG4', 'ORG_LGL_BUS_NAME': 'AUBURN UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '1414', 'Text': 'INTERFAC PROCESSES & THERMODYN'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1985&All=true', 'xml': '8520711.xml'}