Tags

Type your tag names separated by a space and hit enter

Functionalization of silicon nanowire arrays by silver nanoparticles for the laser desorption ionization mass spectrometry analysis of vegetable oils.
J Mass Spectrom. 2016 Sep; 51(9):849-56.JM

Abstract

In this work, novel hybrid nanostructured surfaces, consisting of dense arrays of silicon nanowires (SiNWs) functionalized by Ag nanoparticles (AgNP/SiNWs), were used for the laser desorption/ionization time-of-flight mass spectrometry (LDI-TOF MS) analysis of some typical unsaturated food components (e.g. squalene, oleic acid) to assess their MS performance. The synthesis of the novel platforms is an easy, cost-effective process based on the maskless wet-etching preparation at room temperature of SiNWs followed by their decoration with AgNPs, produced by pulsed laser deposition. No particular surface pretreatment or addition of organic matrixes/ionizers was necessary. Moreover, oil extracts (e.g. extra virgin olive oil, peanut oil) could be investigated on AgNP/SiNWs surfaces, revealing their different MS profiles. It was shown that such substrates operate at reduced laser energy, typically generating intense silver cluster ions and analyte adducts. A comparison with bare SiNWs was also performed, indicating the importance of AgNP density on NW surface. In this case, desorption/ionization on silicon was invoked as probable LDI mechanism. Finally, the influence of SiNW length and surface composition on MS results was assessed. The combination of typical properties of SiNWs (hydrophobicity, antireflectivity) with ionization ability of metal NPs can be a valid methodology for the further development of nanostructured surfaces in LDI-TOF MS applications. Copyright © 2016 John Wiley & Sons, Ltd.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Picca RA
Dipartimento di Chimica, Università degli Studi Bari 'Aldo Moro', Via E. Orabona 4, 70126, Bari, Italy.
Calvano CD
Dipartimento di Chimica, Università degli Studi Bari 'Aldo Moro', Via E. Orabona 4, 70126, Bari, Italy.
Lo Faro MJ
CNR-IPCF, Istituto per i Processi Chimico-Fisici, V. le F. Stagno D'Alcontres 37, 98158, Messina, Italy. MATIS CNR-IMM, Istituto per la Microelettronica e Microsistemi, Via Santa Sofia 64, 95123, Catania, Italy.
Fazio B
CNR-IPCF, Istituto per i Processi Chimico-Fisici, V. le F. Stagno D'Alcontres 37, 98158, Messina, Italy.
Trusso S
CNR-IPCF, Istituto per i Processi Chimico-Fisici, V. le F. Stagno D'Alcontres 37, 98158, Messina, Italy.
Ossi PM
Dipartimento di Energia and Center for NanoEngineered Materials and Surfaces-NEMAS, Politecnico di Milano, Milano, Italy.
Neri F
Dipartimento di Scienze matematiche e informatiche, scienze fisiche e scienze della terra, Università degli Studi di Messina, Messina, Italy.
D'Andrea C
MATIS CNR-IMM, Istituto per la Microelettronica e Microsistemi, Via Santa Sofia 64, 95123, Catania, Italy.
Irrera A
CNR-IPCF, Istituto per i Processi Chimico-Fisici, V. le F. Stagno D'Alcontres 37, 98158, Messina, Italy.
Cioffi N
Dipartimento di Chimica, Università degli Studi Bari 'Aldo Moro', Via E. Orabona 4, 70126, Bari, Italy.

MeSH

Metal NanoparticlesNanowiresPlant OilsSiliconSilverSpectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27476797

Citation

Picca, Rosaria Anna, et al. "Functionalization of Silicon Nanowire Arrays By Silver Nanoparticles for the Laser Desorption Ionization Mass Spectrometry Analysis of Vegetable Oils." Journal of Mass Spectrometry : JMS, vol. 51, no. 9, 2016, pp. 849-56.
Picca RA, Calvano CD, Lo Faro MJ, et al. Functionalization of silicon nanowire arrays by silver nanoparticles for the laser desorption ionization mass spectrometry analysis of vegetable oils. J Mass Spectrom. 2016;51(9):849-56.
Picca, R. A., Calvano, C. D., Lo Faro, M. J., Fazio, B., Trusso, S., Ossi, P. M., Neri, F., D'Andrea, C., Irrera, A., & Cioffi, N. (2016). Functionalization of silicon nanowire arrays by silver nanoparticles for the laser desorption ionization mass spectrometry analysis of vegetable oils. Journal of Mass Spectrometry : JMS, 51(9), 849-56. https://doi.org/10.1002/jms.3826
Picca RA, et al. Functionalization of Silicon Nanowire Arrays By Silver Nanoparticles for the Laser Desorption Ionization Mass Spectrometry Analysis of Vegetable Oils. J Mass Spectrom. 2016;51(9):849-56. PubMed PMID: 27476797.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Functionalization of silicon nanowire arrays by silver nanoparticles for the laser desorption ionization mass spectrometry analysis of vegetable oils. AU - Picca,Rosaria Anna, AU - Calvano,Cosima Damiana, AU - Lo Faro,Maria Josè, AU - Fazio,Barbara, AU - Trusso,Sebastiano, AU - Ossi,Paolo Maria, AU - Neri,Fortunato, AU - D'Andrea,Cristiano, AU - Irrera,Alessia, AU - Cioffi,Nicola, PY - 2016/01/21/received PY - 2016/07/15/revised PY - 2016/07/25/accepted PY - 2016/8/2/entrez PY - 2016/8/2/pubmed PY - 2018/2/17/medline KW - DIOS KW - SALDI-MS KW - food analysis KW - nanomaterial KW - silicon nanowire KW - silver KW - unsaturated bonds SP - 849 EP - 56 JF - Journal of mass spectrometry : JMS JO - J Mass Spectrom VL - 51 IS - 9 N2 - In this work, novel hybrid nanostructured surfaces, consisting of dense arrays of silicon nanowires (SiNWs) functionalized by Ag nanoparticles (AgNP/SiNWs), were used for the laser desorption/ionization time-of-flight mass spectrometry (LDI-TOF MS) analysis of some typical unsaturated food components (e.g. squalene, oleic acid) to assess their MS performance. The synthesis of the novel platforms is an easy, cost-effective process based on the maskless wet-etching preparation at room temperature of SiNWs followed by their decoration with AgNPs, produced by pulsed laser deposition. No particular surface pretreatment or addition of organic matrixes/ionizers was necessary. Moreover, oil extracts (e.g. extra virgin olive oil, peanut oil) could be investigated on AgNP/SiNWs surfaces, revealing their different MS profiles. It was shown that such substrates operate at reduced laser energy, typically generating intense silver cluster ions and analyte adducts. A comparison with bare SiNWs was also performed, indicating the importance of AgNP density on NW surface. In this case, desorption/ionization on silicon was invoked as probable LDI mechanism. Finally, the influence of SiNW length and surface composition on MS results was assessed. The combination of typical properties of SiNWs (hydrophobicity, antireflectivity) with ionization ability of metal NPs can be a valid methodology for the further development of nanostructured surfaces in LDI-TOF MS applications. Copyright © 2016 John Wiley & Sons, Ltd. SN - 1096-9888 UR - https://www.unboundmedicine.com/medline/citation/27476797/Functionalization_of_silicon_nanowire_arrays_by_silver_nanoparticles_for_the_laser_desorption_ionization_mass_spectrometry_analysis_of_vegetable_oils_ DB - PRIME DP - Unbound Medicine ER -