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Gold etching

Whitesides and coworkers developed a procedure to estimate the density of defects in gold-thiol monolayers. The monolayer surface is exposed to the gold-etching solution, the pits obtained are transferred into pits on the Si surface through further chemical treatment and the number of pits per unit area counted. Long-chain alkanethiolate monolayers prepared by the standard technique show pit densities of ca 100 pits mm . The number of pits sharply increase if the gold surface is stored for a long time in air prior to monolayer deposition . [Pg.572]

Scissors, nitric acid, gold etch (Transene), plastic hemostats, archival grade Au CD-R from Diversified Systems Group, Inc. [Pg.186]

Covalent immobilization of proteins on nricrostmctured gold surfaces was studied in [226]. On Arese substrates, which were prepared by pCP aird etching. Are immobilization sites of proteins could be spatially controlled using air amino-reactive SAM. The whole process, i.e. production of Are micropattemed substrate including SAM exchairge aird protein immobilization, took a reasonably small amount of time ( 24 h), providing some flexibility in the experimental work. [Pg.2628]

Copper is universally used as the metal plating for tape because it can be easily laminated with copper and the various plastic tapes. Copper is readily etched and has excellent electrical and thermal conductivity in both electrodeposited and roUed-annealed form. The tape metal plating is normally gold- or tin-plated to ensure good bondabiUty during inner- and outer-lead bonding operations and to provide better shelf life and corrosion resistance. [Pg.529]

Zinc—bromine storage batteries (qv) are under development as load-leveling devices in electric utilities (64). Photovoltaic batteries have been made of selenium or boron doped with bromine. Graphite fibers and certain polymers can be made electrically conductive by being doped with bromine. Bromine is used in quartz—haUde light bulbs. Bromine is used to etch aluminum, copper, and semi-conductors. Bromine and its salts are known to recover gold and other precious metals from their ores. Bromine can be used to desulfurize fine coal (see Coal conversion processes). Table 5 shows estimates of the primary uses of bromine. [Pg.289]

A. Kumar, G. M. Whitesides. Features of gold having micrometer to centimeter dimensions can be formed through a combination with an elastomeric stamp and an alkanethiol ink followed by chemical etching. AppI Phys Lett (55 2002-2004, 1993. [Pg.67]

Surface features can also be revealed by etching, which permits identification of points of intersection of line dislocations with the surface, and this is valuable in determining the role of these imperfections in chemical processes [45,214] and, in particular, nucleus formation. Smaller topographical details can be rendered visible by the evaporation of a thin (<0.5 nm) film of gold onto the surface [215,216]. Heights and depths of surface features can be determined by interferometry [203—205]. Microcinematography has also been used [217] to record the progress of solid phase reactions. [Pg.25]

Ren, B., Picardi, G. and Pettinger, B. (2004) Preparation of gold tips suitable for tip-enhanced Raman spectroscopy and light emission by electrochemical etching. Rev. Sci. Instrum., 75, 837-841. [Pg.18]


See other pages where Gold etching is mentioned: [Pg.315]    [Pg.572]    [Pg.6188]    [Pg.230]    [Pg.18]    [Pg.192]    [Pg.270]    [Pg.315]    [Pg.572]    [Pg.6188]    [Pg.230]    [Pg.18]    [Pg.192]    [Pg.270]    [Pg.384]    [Pg.528]    [Pg.541]    [Pg.48]    [Pg.113]    [Pg.125]    [Pg.159]    [Pg.363]    [Pg.195]    [Pg.491]    [Pg.1032]    [Pg.150]    [Pg.341]    [Pg.360]    [Pg.188]    [Pg.343]    [Pg.382]    [Pg.146]    [Pg.76]    [Pg.376]    [Pg.14]    [Pg.48]    [Pg.129]    [Pg.127]    [Pg.95]    [Pg.303]    [Pg.410]    [Pg.424]    [Pg.457]    [Pg.32]    [Pg.570]    [Pg.162]   
See also in sourсe #XX -- [ Pg.420 ]




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