Hans A. Biebuyck

Amit Kumar3
Gabriel P L6pez2
M. Whitesides2
George M Whitesidesi2
3Amit Kumar
2Gabriel P L6pez
2M. Whitesides
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,9$e-r9d,^o-r-gary-c.Tgnolay_ers^we1e {o^rae_{ 9ng9ld slides by adsorption from ethanol of HS(CH)'.CH2OH, HS(CH2)1oCHg, [S(CHilIoCH2OH]2, [S(CHtroeH3]2, and binary .ni"t.r.". of these molecules in whictr one component was terminated by a hydrophobic methy_l group and one by a hydrophilic alcohol group. The compositions of the monolayers were determirqe$ by(More)
  • James L Wilbur, Amit Kumar, Hans A Biebuyck, Enoch Kim, George M Whitesidesi
  • 2010
This paper describ_es applications in microfabrication using patterned self-assembled monolayers (SAMs) formed by microcontact printing."Microcontact printing (7rCP) is a flexible new technique that forms patterned SnMs with regions terminated by different chemical functionalities (and thus different physicat and chemical properties), in patterns with pm(More)
The combination of aqueous, alkaline cyanide ion (l M KOH, 0.1 M KCN) and dioxygen rapidly etches Au(0) (eq l).'-o Self-assembled monolayers (SAMs) of long-chain alkanethiolates 4Au * 8CN-+ 02 + 2H2O-4[Au(CN)z]-+ 4OH-(l) on the surface of the gold block this etching. Using a number of techniques-micromachining, microwriting, electron-beam lithography,(More)
This paper outlines a general s1'nthetic route to alkanethiols useful in forming self-asserylied monolayers (SAMsistarting from amines. RNH:. and converting them. r'ia cr-chloroamides RNHCOCHzCI, to thiols having the structure RNHCOCH2SH. The u'ettabilitres ,estinrated froni contact angles of rvater and hexadecane) and the thicknesses {as measured bv(More)
  • James L Wilbur, Hans A Biebuyck, John C Macdonald, George U Wiritesides, Sample Ffi, Z-Piezoelecrric +2 others
  • 2010
This paper demonstrates that scanning probe microscopies (SPMs) can image patterned self-assembled monolayers (SAMs) formed by microcontact printing. Lateral force microscopy (LFM) and force modulation microscopy (FMM) showed contrast between regions of patterned SAMs terminated by different chemical functionalities. Normal force microscopy (NFM) typically(More)
Scanning electron microscopy is able to form images of patterns of self-assembled monolayers (SAMs) of alkanettriolates adsorbed on gold. The contrast in these images is unexpectedly sensitive to the structures of the components of the SAMs. Several factors contribute to the contrast: the compositions of the SAMs; the compositions and quantities of(More)
We have formed self-assembled monolayers (SAMs) of alkanethiolates on 5-nm-and l0-nm-thick films of gold supported on titanium-primed glass. These electrically-conductive films transmit visible light,s support SAMs that have wetting properties superior to those of SAMs supported on opaque 200-nm-thick films commonly used in this area of surface chemistr),6(More)
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