Surface-enhanced resonance Raman spectroscopy of porphyrin and metalloporphyrin species in systems with Ag nanoparticles and their assemblies

Vlčková, Blanka; Šmejkal, Petr; Michl, Martin; Procházka, Marek; Mojzeš, Peter; Lednický, F.; Pfleger, Jiřı́

doi:10.1016/s0162-0134(99)00172-5

Cited by 20 publications

(12 citation statements)

References 20 publications

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“…The spectra presented for the three molecules are in line with it has been reported in literature (Fig. S14 ) 52 , 53 , 65 – 67 .…”

Section: Resultssupporting

confidence: 90%

“…2a–d ). The SERRS spectra before and after UV irradiation possess Raman spectral features in agreement with those reported in the literature for TMPyP, e.g., C-pyrrole bending at 1249 cm −1 , C-C stretching at 1451 and 1557 cm −1 , and pyrrole bending at 1639 cm −1 52 , 53 . Plotting SERRS intensity at 1448 cm −1 vs. UV irradiation time (Fig.…”

Section: Resultssupporting

confidence: 87%

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Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template

Almohammed

Zhang

Rodriguez

et al. 2018

Sci Rep

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UV irradiation of aligned diphenylalanine peptide nanotubes (FF-PNTs) decorated with plasmonic silver nanoparticles (Ag NPs) enables photo-induced surface-enhanced Raman spectroscopy. UV-induced charge transfer facilitates a chemical enhancement that provides up to a 10-fold increase in surface-enhanced Raman intensity and allows the detection of a wide range of small molecules and low Raman cross-section molecules at concentrations as low as 10–13 M. The aligned FF-PNT/Ag NP template further prevents photodegradation of the molecules under investigation. Our results demonstrate that FF-PNTs can be used as an alternative material to semiconductors such as titanium dioxide for photo-induced surface-enhanced Raman spectroscopy applications.

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“…The spectra presented for the three molecules are in line with it has been reported in literature (Fig. S14 ) 52 , 53 , 65 – 67 .…”

Section: Resultssupporting

confidence: 90%

Section: Resultssupporting

confidence: 87%

Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template

Almohammed

Zhang

Rodriguez

et al. 2018

Sci Rep

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“…However, we are systematically using porphyrins as SERS-reporter biomolecules because they can better evaluate the surface features of NSs, such as metalation predispositions (i.e., the predispositions for incorporation of a metal ion into a porphyrin core), oxidation state of Ag ions at the surface of NSs, etc. [ 36 , 37 , 38 , 39 , 40 , 41 ]. Based on previous studies, tetracationic TMPyP (5,10,15,20-tetrakis(1-methyl-4-pyridyl)21H,23H-porphine) can interact with Ag(I) and/or Ag(0) surfaces, revealing metalation markers in slightly different positions leading thus to different SERS-spectral patterns [ 40 , 41 , 42 , 43 ].…”

Section: Introductionmentioning

confidence: 99%

Distinctly Different Morphologies of Bimetallic Au-Ag Nanostructures and Their Application in Submicromolar SERS-Detection of Free Base Porphyrin

Vilímová

Šišková

2021

Nanomaterials

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Core-shell Au-Ag nanostructures (Au-AgNSs) are prepared by a seed-meditated growth, i.e., by a two-step process. The synthetic parameters greatly influence the morphologies of the final bimetallic Au-AgNSs, their stability and application potential as surface-enhanced Raman scattering (SERS) substrates. Direct comparison of several types of Au NPs possessing different surface species and serving as seeds in Au-AgNSs synthesis is the main objective of this paper. Borohydride-reduced (with varying stages of borohydride hydrolysis) and citrate-reduced Au NPs were prepared and used as seeds in Au-AgNSs generation. The order of reactants in seed-mediated growth procedure represents another key factor influencing the final Au-AgNSs characteristics. Electronic absorption spectra, dynamic light scattering, zeta potential measurements, energy dispersive spectroscopy and transmission electron microscopy were employed for Au-AgNSs characterization. Subsequently, possibilities and limitations of SERS-detection of unperturbed cationic porphyrin, 5,10,15,20-tetrakis(1-methyl-4-pyridyl)21H,23H-porphine (TMPyP), were investigated by using these Au-AgNSs. Only the free base (unperturbed) SERS spectral form of TMPyP is detected in all types of Au-AgNSs. It reports about a well-developed envelope of organic molecules around each Au-AgNSs which prevents metalation from occuring. TMPyP, attached via ionic interaction, was successfully detected in 10 nM concentration due to Au-AgNSs.

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“…There are various procedures how to prepare SERS-active substrate: vacuum thermal evaporation of metal particles [23][24][25], reduction of metal salts with various chemicals producing nanoparticles [26][27][28][29], sol-gel process [30,31], coating of inert metal surfaces by cathodic reduction [32,33] or oxidation-reduction cycling (ORC) on a metal electrodes [14,34]. Some of these procedures require expensive instrumentation.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic study of SERS- and SEIRA-activity of copper large-scaled surface substrates prepared by electrochemical deposition: What is the role of oxidation–reduction cycle treatment?

Prokopec

Dendisová

Kokaislova

et al. 2011

Journal of Molecular Structure

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Surface-enhanced resonance Raman spectroscopy of porphyrin and metalloporphyrin species in systems with Ag nanoparticles and their assemblies

Cited by 20 publications

References 20 publications

Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template

Photo-induced surface-enhanced Raman spectroscopy from a diphenylalanine peptide nanotube-metal nanoparticle template

Distinctly Different Morphologies of Bimetallic Au-Ag Nanostructures and Their Application in Submicromolar SERS-Detection of Free Base Porphyrin

Spectroscopic study of SERS- and SEIRA-activity of copper large-scaled surface substrates prepared by electrochemical deposition: What is the role of oxidation–reduction cycle treatment?

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