2) Search the article you've identified. (E.g., do a title search like this ti:Exploiting cell surface thiols to enhance cellular uptake. Such a search will take you to this record: http://taylor.worldcat.org/oclc/781785258.
3) From there, scroll down to the "Request Item through Interlibrary Loan" tab. After you log in, this will populate the interlibrary loan request form. Review the information, then "Submit."
Here's a tip. Before making an interlibrary loan request, see if the article may be available through linked full-text via Google Scholar(in the right margin of the citation). Of course, if you've found the article through a Google Scholar search you should already know that.