Direct and Simultaneous Identification of Multiple Mitochondrial Reactive Oxygen Species in Living Cells Using a SERS Borrowing Strategy

Lin, Shichao; Ze, Huajie; Zhang, Xia‐Guang; Zhang, Yuejiao; Song, Juan; Zhang, Huimin; Zhong, Han-Liang; Yang, Zhi‐Lan; Yang, Chaoyong; Li, Jianfeng; Zhu, Zhi

doi:10.1002/ange.202203511

Cited by 3 publications

(3 citation statements)

References 32 publications

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“…The DFT approach is increasingly used for SERS spectroscopy by several research groups, as demonstrated by the most recent studies [ 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 ] in which close links between DFT calculations and SERS applications are shown. Among these studies, the following studies devoted to applications in sensors, especially for environmental protection, and to applications in biomedicine, are worthy of particular attention.…”

Section: Recent Developmentsmentioning

confidence: 99%

Can DFT Calculations Provide Useful Information for SERS Applications?

Muniz‐Miranda

Menziani

et al. 2023

Molecules

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Density functional theory (DFT) calculations allow us to reproduce the SERS (surface-enhanced Raman scattering) spectra of molecules adsorbed on nanostructured metal surfaces and extract the most information this spectroscopy is potentially able to provide. The latter point mainly concerns the anchoring mechanism and the bond strength between molecule and metal as well as the structural and electronic modifications of the adsorbed molecule. These findings are of fundamental importance for the application of this spectroscopic technique. This review presents and discusses some SERS–DFT studies carried out in Italy as a collaboration between the universities of Modena and Reggio-Emilia and of Florence, giving an overview of the information that we can extract with a combination of experimental SERS spectra and DFT modeling. In addition, a selection of the most recent studies and advancements on the DFT approach to SERS spectroscopy is reported with commentary.

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Section: Recent Developmentsmentioning

confidence: 99%

Can DFT Calculations Provide Useful Information for SERS Applications?

Muniz‐Miranda

Menziani

et al. 2023

Molecules

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“…It is necessary to develop strategies that could detect adsorption configurations and temporal evolution of intermediates and correlate with the reactivity. The configuration evolution of intermediates may profoundly impact the field of chemical catalysis and even biocatalysis 13 and may lead to a decisive step toward the design and fabrication of highly efficient catalytic materials. Surface-enhanced Raman spectroscopy (SERS) is a highly sensitive technique for detecting surface oxygen-containing species, especially in the low wavenumber region.…”

Section: ■ Introductionmentioning

confidence: 99%

In Situ SERS Probing the Effect of Additional Metals on Pt-Based Ternary Alloys toward Improving ORR Performance

Zhong

Zhang

et al. 2023

ACS Catal.

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The surface/interface electronic structure of metal catalysts plays a decisive role in electrocatalytic reactions. Direct monitoring of intermediates during the oxygen reduction reaction (ORR) is an accessible method to elucidate the interaction between intermediates and electronic effects and to correlate this interaction with ORR activity. Herein, the reaction processes and intermediates of ORR on highly efficient PtCoSn ternary nanoalloys were explored by surface-enhanced Raman spectroscopy (SERS) via a “borrowing” strategy. Reactive *OOH intermediates were captured under ORR conditions to reveal the critical role of interfacial electronic effects in ORR at a molecular level. Direct SERS evidence demonstrated that alloying with Co and Sn can tailor the electronic structure of Pt, thus changing the configuration of *OOH on the surface to a weaker energy state. Combined with density functional theory (DFT) calculation and X-ray photoelectron spectroscopy (XPS), it was concluded that the electronic effects of the alloyed surface induced the *OOH configuration to converge toward the alloy surface. Especially when Sn was doped, the more stable PtCoSn structure enabled the *OOH adsorption configuration almost parallel to the surface, which greatly promoted the dissociation of the O–O bond, leading to the outstanding ORR performance of PtCoSn. These results showed that in situ SERS investigation delivered direct spectral evidence for the increase of ORR activity caused by the electronic effect, which is expected to provide practical theoretical guidance for the construction of highly active ORR electrocatalysts in the future.

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“…26,27 By its high sensitivity, in situ SERS has been used to detect active species in biological systems by research groups including our group. [28][29][30][31][32][33][34][35] Recently, it begins to emerge in the study of the underlying catalytic reaction mechanisms. [36][37][38] For example, by using bifunctional Au@Ni 3 FeO x structures, the Raman signal from intermediate species (O-O -) during oxygen evolution reaction on Ni 3 FeO x NPs can be enhanced and seen because of the SERS enhancement from the Au core.…”

Section: Introductionmentioning

confidence: 99%