The adsorption and stability of sulfur containing amino acids on Cu{531}

Thomsen, Lars; Wharmby, Michael T.; Riley, Daniel P.; Held, Georg; Gladys, M. J.

doi:10.1016/j.susc.2009.03.014

Cited by 48 publications

(68 citation statements)

References 49 publications

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“…Thomsen et al [115] repeated the XPS and NEXAFS analysis performed on Ala for Cys/Cu(531) and Met/Cu(531). Careful analysis of the photoemission spectra (see Table 3) suggests that in both cases the local chemical environment of C, O and N atoms is very similar to the one of Ala.…”

Section: A3)mentioning

confidence: 99%

Adsorption and self-assembly of bio-organic molecules at model surfaces: A route towards increased complexity

Costa

Pradier

Tielens

et al. 2015

Surface Science Reports

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Understanding the bio-physical-chemical interactions at nanostructured biointerfaces and the assembling mechanisms of so-called hybrid nano-composites is nowadays a keyissue for nanoscience in view of the many possible applications foreseen. The contribution of surface science in this field is noteworthy since, using a bottom-up approach, it allows the investigation of the fundamental processes at the basis of complex interfacial phenomena and thus it helps to unravelthe elementary mechanisms governing them. Nowadays it is well demonstrated that a wide variety of different molecular assemblies can form upon adsorption of small biomolecules at surfaces. The geometry of such self-organized structures can often be tuned by a careful control of the experimental conditions during the deposition process. Indeed an impressive number of studies exist (both experimental and -to a lesser extendtheoretical), which demonstrate the ability of molecular self-assembly to create different structural motifs in a more or less predictable manner, by tuning the molecular building blocks as well as the metallic substrate. In this frame, amino acidsand small peptides at surfaces are key, basic, systems to be studied. The amino acidsstructure is simple enough to serve as a model for the chemisorption of biofunctional molecules, but their adsorption at surfaces has applications in surface functionalization, in enantiospecific catalysis, biosensing, nanoparticles shape control or in emerging fields such as "green" corrosion inhibition. In this paper we review the most recent advancements in this field. We will start from amino acids adsorption at metal surfaces and we will evolve then in the direction of more complex systems, in thelight of the latest improvements of surface science techniques and of computational methods. On one side, we will focus on amino acids adsorption at oxide surfaces, on the other on peptide adsorption both at metal and oxide substrates. Particular attention will be drawn to the added value provided by the combination of several experimental surface science techniques and to the precious contribution of advanced complementary computational methods to resolve the details of systems of increased complexity. Finally, some hints into experiments performed in the presence of water and then characterized in UHV and in the related theoretical work will be presented. This is a further step towards abetter approximation of real biological systems. However, since the methods employed are often not typical of surface science, this topic is not developed in details.2

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Section: A3)mentioning

confidence: 99%

Adsorption and self-assembly of bio-organic molecules at model surfaces: A route towards increased complexity

Costa

Pradier

Tielens

et al. 2015

Surface Science Reports

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“…XPS and NEXAFS measurements have led to the suggestion of four-point binding to Cu{531}, involving the thiol S as well as the amine N and carboxylate O atoms, although the proposed binding footprint adopted by the N and O in {110} and {311} sites is common to the glycinate and alaninate models [60].…”

Section: Cu{531}: Glycine Alanine Cysteinementioning

confidence: 99%

Chirality in Amino Acid Overlayers on Cu Surfaces

et al. 2011

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Chirality at surfaces has become a strong focus within the surface science community. A particular motivation is the prospect of using heterogeneous catalysis over chiral solid surfaces for asymmetric synthesis, a prospect which has clear relevance to the pharmaceutical industry. Small amino acids adsorbed on Cu surfaces have emerged as important model systems for studying the interaction of chiral molecules with metal surfaces. In this article, we review the current state of knowledge of these systems, and present the results of new experimental studies of alanine overlayers on Cu{311} and {531} surfaces. Our work on Cu{311} helps us to understand the interplay between different manifestations of chirality, especially ''footprint chirality'', in the overlayers. Cu{531} is an intrinsically chiral surface orientation; our data reveal strongly enantiospecific alanine-induced restructuring of this surface. This points the way towards a promising route for obtaining strongly enantiospecific interactions with chiral adsorbates.

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“…X-ray photoelectron spectroscopy (XPS) on the core levels was performed for these studies. [7][8][9][10][11][12][13][14][15][16][17][18] The enantioselectivity of cysteine/Au (17,11,9) surface was reported. 19,20 Scanningtunneling-microscopy (STM) investigations on cysteine/ Au(110) also showed the alignments of the molecules and induced surface rearrangements.…”

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confidence: 99%

Photoelectron spectroscopic study on the electronic structures of the dental gold alloys and their interaction with L-cysteine

Ogawa

Tsujibayashi

Takahashi

et al. 2011

Journal of Applied Physics

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The valence electronic structures of the dental gold alloys, type 1, type 3, and K14, and their interaction with L-cysteine have been studied by ultraviolet photoelectron spectroscopy with synchrotron radiation. It was found that the electronic structures of the type-1 and type-3 dental alloys are similar to that of polycrystalline Au, while that of the K14 dental alloy is much affected by Cu. The peak shift and the change in shape due to alloying are observed in all the dental alloys. It is suggested that the new peak observed around 2 eV for the L-cysteine thin films on all the dental alloys may be due to the bonding of S 3sp orbitals with the dental alloy surfaces, and the Cu–S bond, as well as the Au–S and Au–O bonds, may cause the change in the electronic structure of the L-cysteine on the alloys.

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The adsorption and stability of sulfur containing amino acids on Cu{531}

Cited by 48 publications

References 49 publications

Adsorption and self-assembly of bio-organic molecules at model surfaces: A route towards increased complexity

Adsorption and self-assembly of bio-organic molecules at model surfaces: A route towards increased complexity

Chirality in Amino Acid Overlayers on Cu Surfaces

Photoelectron spectroscopic study on the electronic structures of the dental gold alloys and their interaction with L-cysteine

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