Dataset:
Surface Enhanced Raman Spectra of 1,4-Benzenedimethanethiol on electrochemically (oxidation reduction cycle - step) fabricated nanoporous gold films
Surface Enhanced Raman Spectra of 1,4-Benzenedimethanethiol on electrochemically (oxidation reduction cycle - step) fabricated nanoporous gold films
| dc.contributor.other | Hibbert, Brynn | en_US |
| dc.contributor.other | Moran, Grainne | en_US |
| dc.date.accessioned | 2021-11-26T10:33:58Z | |
| dc.date.available | 2021-11-26T10:33:58Z | |
| dc.date.issued | 2013 | en_US |
| dc.description.abstract | The oxidation reduction step technique was utilise and was optimised to fabricate as a Surface Enhanced Raman Spectroscopy (SERS) substrate at 785 nm by a central composite experimental design. | en_US |
| dc.identifier.uri | http://hdl.handle.net/1959.4/004_369 | |
| dc.language | English | |
| dc.language.iso | EN | en_US |
| dc.title | Surface Enhanced Raman Spectra of 1,4-Benzenedimethanethiol on electrochemically (oxidation reduction cycle - step) fabricated nanoporous gold films | en_US |
| dc.type | Dataset | en_US |
| dcterms.accessRights | metadata only access | |
| dcterms.accrualMethod | http://hdl.handle.net/1959.4/004_128 | en_US |
| dcterms.accrualMethod | http://hdl.handle.net/1959.4/004_301 | |
| dcterms.rightsHolder | Copyright 2012, University of New South Wales | en_US |
| dspace.entity.type | Dataset | en_US |
| unsw.accessRights.uri | http://purl.org/coar/access_right/c_14cb | |
| unsw.contributor.leadChiefInvestigator | Gloria, Danmar | en_US |
| unsw.contributor.researchDataCreator | Gloria, Danmar | en_US |
| unsw.coverage.temporalFrom | 2010-01-30 | en_US |
| unsw.description.contact | Please notify Primary Investigator for permission to access this data. | en_US |
| unsw.description.storageplace | UNSW Australia, Sydney NSW 2052, Australia | en_US |
| unsw.identifier.doi | https://doi.org/10.26190/unsworks/1403 | |
| unsw.isDatasetRelatedToDataset | Surface Enhanced Raman Spectra of 1,4-Benzenedimethanethiol on electrochemically (single potential step) fabricated nanoporous gold films | |
| unsw.isDatasetRelatingToDataset | Raman Spectra of Organo-arsenic compounds | |
| unsw.isDatasetRelatingToDataset | Extinction Spectra of 1,4-Benzenedimethanethiol on Gold Nano Pillars with varying dimensions | |
| unsw.isDatasetRelatingToDataset | Surface Enhanced Raman Spectra of1,4-Benzenedimethanethiol on Gold Nano Pillars with varying dimensions | |
| unsw.isDatasetRelatingToDataset | DFT calculated Raman Spectra of Organo-arsenic compounds | |
| unsw.isDatasetRelatingToDataset | DFT calculated Infrared Spectra of Organoarsenics | |
| unsw.isDatasetRelatingToDataset | FTIR Spectra of Organoarsenic Compounds | |
| unsw.isDatasetRelatingToDataset | Competitive binding between 3-Mercaptopropionic acid and 1,4-Benzenedimethanethiol monitored through Surface Enhanced Raman Spectroscopy | |
| unsw.isDatasetRelatingToDataset | Surface Enhanced Raman Spectra of 1,4-Benzenedimethanethiol on electrochemically (oxidation reduction cycle) fabricated nanoporous gold films | |
| unsw.isDatasetRelatingToDataset | Effect of laser power and wavelength on SERS spectra of 1,4 Benzenedimethanethiol modified Klarite substrates | |
| unsw.isDatasetRelatingToDataset | Reductive Desorption of gold electrodes functionalised with MPA, MPYR, MBA, BDMT | |
| unsw.relation.OriginalPublicationAffiliation | Hibbert, Brynn, School of Chemistry, Faculty of Science, | en_US |
| unsw.relation.OriginalPublicationAffiliation | Gloria, Danmar, Division of Human Resources, Operations Division, | en_US |
| unsw.relation.OriginalPublicationAffiliation | Moran, Grainne, D PVC Research Infrastruture, Research & Enterprise, | en_US |
| unsw.relation.faculty | Science | |
| unsw.relation.faculty | Other UNSW | |
| unsw.relation.projectDesc | The toxicity of arsenic depends on its chemical form. Organo-arsenic compounds are acknowledged to be less toxic than inorganic arsenic compounds. Therefore, measurement of the concentration of arsenic as element (“total arsenic”) alone is insufficient because organo-arsenicals comprise an important fraction of many environmental samples. In this thesis several milestones on the path towards the development of a continuous and miniaturised arsenic speciation system based on surface enhanced Raman spectroscopy was achieved. The well known oxidation reduction cycle (ORC) technique for fabricating polycrystalline gold foils as effective surface enhanced Raman spectroscopy (SERS) substrates was systematically optimised using a central composite experimental design (CCD). A novel one step electrochemical method, which has been developed for fabrication of nano-porous gold films (NPGF), was demonstrated and optimised as an effective alternative to ORC. Direct-write electron beam lithography and metal-lift-off nanofabrication techniques were also used to create gold nano-pillar systems which serve as SERS substrates. The CCD optimisation model, built from the dimensions of the pillars and the distance between them predicts that higher Raman signal enhancements can be obtained using arrays with 185 nm spacing and 214 nm x 214 nm dimensions. A Raman spectroscopic study of twelve organo-arsenics was reported. The prediction of the normal mode vibrational frequencies and assignments were based on calculations done at the HF, DFT/B3LYP levels of theory using 6-311++G(3df,3pd) basis set. The first multivariate detection of the concentration of arsenic species using SERS was demonstrated. The adsorption of arsenic species on the surface has been aided by selecting the arsenic species according to their ionic charges. The species were partitioned into monolayers of charged alkanethiols. Multivariate regression of pure arsenic species over the concentration range of 0 – 5 mM was shown using a PLS1 algorithm. Simultaneous determination of arsenate and arsenobetaine has been demonstrated using a two sensor system. PLS2 was used for calibration of 16 samples containing all the possible combination of the chosen concentration range. The PLS2 model was applied to adequate amount of independent test sets and the actual concentration of the test sets agreed well with the predicted concentration. | en_US |
| unsw.relation.projectEndDate | 2011-12-31 | en_US |
| unsw.relation.projectTitle | Surface enhanced Raman spectroscopy: Substrate fabrication and applications to arsenic speciation | en_US |
| unsw.relation.school | School of Chemistry | |
| unsw.relation.school | Mark Wainwright Analytical Centre | |
| unsw.subject.fieldofresearchcode | 100708 Nanomaterials | en_US |
| unsw.subject.fieldofresearchcode | 030101 Analytical Spectrometry | en_US |
| unsw.subject.fieldofresearchcode | 030199 Analytical Chemistry not elsewhere classified | en_US |