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Mendeley readers
Attention Score in Context
| Title |
DPPTE Thiolipid Self-Assembled Monolayer: A Critical Assay
|
|---|---|
| Published in |
Langmuir, October 2016
|
| DOI | 10.1021/acs.langmuir.6b01912 |
| Pubmed ID | |
| Authors |
Raffaella Lettieri, Floriana Di Giorgio, Alessandra Colella, Roger Magnusson, Fredrik Bjorefors, Ernesto Placidi, Antonio Palleschi, Mariano Venanzi, Emanuela Gatto |
| Abstract |
Supported lipid membranes represent an elegant way to design a fluid interface able to mimic the physico-chemical properties of biological membranes, with potential biotechnological applications. In this work, a diacyl phospholipid, the 1,2-dipalmitoyl-sn-glycero-3-phosphothioethanol (DPPTE), functionalized with a thiol group, was immobilized on a gold surface. In this molecule, the thiol group, responsible of the Au-S bond (55 kJ/mol) is located on the phospholipid polar head, letting the hydrophobic chain protruding from the film. This system is widely used in the literature, but not of less challenging, since its characterization is not complete, as several discording data have been obtained. In this work, the film was characterized by cyclic voltammetry blocking experiments, to verify the SAM formation, and by reductive desorption measurements to estimate the molecular density of DPPTE on the gold surface. This value has been compared to that obtained by quartz crystal microbalance measurements. Ellipsometry and impedance spectroscopy measurements have been performed to obtain information about the monolayer thickness and capacitance. The film morphology was investigated by atomic force microscopy. Finally, Monte Carlo simulations were carried out , in order to gain molecular information about the morphologies of the DPPTE SAM, and compare them to the experimental results. We demonstrate that DPPTE molecules, incubated 18 hours below the phase transition temperature (T= 41.1±0.4°C) in ethanol solution, are able to form a self-assembled monolayer on gold surface, with domain structures of different order, which have never been reported before. Our results make possible to rationalize the scattered results so far obtained on this system, giving a new insight on the formation of phospholipids SAMs on gold surface. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 20 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 20 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 6 | 30% |
| Student > Master | 2 | 10% |
| Student > Ph. D. Student | 1 | 5% |
| Student > Bachelor | 1 | 5% |
| Professor | 1 | 5% |
| Other | 1 | 5% |
| Unknown | 8 | 40% |
| Readers by discipline | Count | As % |
|---|---|---|
| Chemistry | 6 | 30% |
| Physics and Astronomy | 3 | 15% |
| Materials Science | 1 | 5% |
| Biochemistry, Genetics and Molecular Biology | 1 | 5% |
| Unknown | 9 | 45% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 November 2016.
All research outputs
#20,349,664
of 22,896,955 outputs
Outputs from Langmuir
#12,620
of 13,976 outputs
Outputs of similar age
#271,446
of 314,203 outputs
Outputs of similar age from Langmuir
#104
of 155 outputs
Altmetric has tracked 22,896,955 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 13,976 research outputs from this source. They receive a mean Attention Score of 3.8. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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We're also able to compare this research output to 155 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.