How do you clean your Gold Substrate (or other metal) and glassware before making your SAM?

Posted by Scott Charlesworth on January 5, 2010 at 7:26pm
It has come to my attention that people I know use different methods to clean their Gold substrates and glassware. ...Question is how do you clean yours...?Au cleaning1. immerse Au in COLD and FRESH PIRAHNA (in ice bath) for 10mins2. remove and dip in FRESH Ultra High Quality Water in a clean vialthen without letting the Au surface dry...3.wash with copious amounts of UHQ (APPROX 50-100ML)4.wash with copious amounts of HPLC EtOH (APPROX 50-100ML)5. Repeat 3 and 46. Immerse in SAM solutionGlassware Cleaning1.If visibly dirty wash vial as normal glassware then sonnicate in EtOH for half hr2. Immerse glassware in Piranha solution for 1hr3. Remove and wash with copiuos amounts of UHQ water (x4) to remove acid4.Sonnicate in UHQ for 30min5. Wrap in tin foil and dry in oven for 1hr untill dry6. take out oven, cool in foil then immerse in HPLC EtOH and sonnicate for 30min7. Wrap in tin foil put in oven and use within a week

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Tags: sam, cleaning, glassware, gold, protocol
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  • M. Bagherzadeh January 6, 2010 at 6:37am
    Hi
    you can see my papers. I writ this:
    1) ‘Determination of dopamine in the presence of high concentration of ascorbic acid using gold cysteamine self-assembled monolayers as a nanosensor’ R. K. Shervedani, M. Bagherzadeh, S. A. Mozaffari, Sensor and Actuators B,115, 2006, 614-621. Top 25 Hottest Articles (Chemistry, Sensors and Actuators B: Chemical April - June 2006). Cited in Scopus (48)

    2) ‘Functionalization of gold cysteamine self-assembled monolayer with ethylenediaminetetraacetic acid as a novel nanosensor’ R. K. Shervedani, A. Farahbakhsh, M. Bagherzadeh, Analytica Chimica Acta, 587, 2007, 254-262. Cited in Scopus (17)

    3) ‘Electrochemical Characterization of In Situ Functionalized Gold Cysteamine Self-Assembled Monolayer with 4-Formylphenylboronic Acid for Detection of Dopamine’ R. K. Shervedani, M. Bagherzadeh, Electroanalysis, 20, 2008, 550 – 557. Cited in Scopus (7)

    4) ‘Hydroxamation of gold surface via in-situ layer-by-layer functionalization of cysteamine self-assembled monolayer: Preparation and electrochemical characterization’ R. K. Shervedani, M. Bagherzadeh, Electrochimica acta, 53, 2008, 6293–6303. Cited in Scopus (7)

    5) ‘Electrocatalytic determination of hydroquinone based on complexed Mn+ with gold-5-amino-2-mercaptobenzimidazole self-assembled monolayer electrode’ R. K. Shervedani1, F. Yaghoobi, M. Bagherzadeh, Journal of Iranian Chemical Society, 6, 2009, 104-112.

    6) ‘Electrochemical Impedance Spectroscopy as a Transduction Method for Electrochemical Recognition of Zirconium on Gold Electrode Modified with Hydroxamated Self Assembled Monolayer’ R. K. Shervedani, M. Bagherzadeh, Sensor and Actuators B, 139, 2009, 657-664.

    7) ‘One-Impedance for One-Concentration Impedimetry as an Electrochemical Method for Determination of the Trace Zirconium Ion’ R. K. Shervedani, M. Bagherzadeh, H. Sabzyan, R. Safari J. Electroanal. Chem. 633, 2009, 259-263.

    8) ‘Electrochemical characterization of gold 6 Amino 2 mercaptobenzothiazole self assembled monolayer and its application for dopamine detection in pharmaceutical samples’ R. K. Shervedani, S.M. Siadat-Barzoki, M. Bagherzadeh, Electroanalysis, 2009, Accepted.
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