A study of plasmon-driven catalytic 4-NBT to DMAB in the dry film by using spatial Raman mapping spectroscopy

Liu, Yansheng; Deng, Junpeng; Jin, Zhicheng; Liu, Tianxing; Zhou, Jin; Luo, Feng; Wang, Guofu

doi:10.1007/s12274-022-4310-x

Cited by 15 publications

(13 citation statements)

References 31 publications

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“…While the as-prepared supraballs after gold deposition showed a limited activity (Figures S31, S32, and S33b), introduction of Ag + adsorbates significantly promoted the photoconversions (Figure S33a). This phenomenon was consistent with previous observations. − Ag + can serve as an electron-sacrificing agent to enhance the reactivity of hot holes by avoiding electron–hole recombination. On the other hand, Ag + can be a precursor to AgO that plays important roles in plasmon-mediated catalysis.…”

Section: Resultsmentioning

confidence: 99%

DNA-Condensed Plasmonic Supraballs Transparent to Molecules

Chen,

Wang,

Deng

2023

Langmuir

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Section: Resultsmentioning

confidence: 99%

DNA-Condensed Plasmonic Supraballs Transparent to Molecules

Chen,

Wang,

Deng

2023

Langmuir

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“…Comparing the spectra from reference and cell media (CM) we did not observe any significant changes for days 1-6. However, on day 7 we see the appearance of three new bands at 1140 cm −1 (βC-H), 1390, and 1433 cm −1 (νN=N) coming from the 4-NBT dimerization product DMAB [46]. 4-NBT dimerization is a complex reaction with different possible pathways.…”

Section: Mediation Of Photocatalytic Reactionsmentioning

confidence: 92%

Molecular Plasmonic Silver Forests for the Photocatalytic-Driven Sensing Platforms

et al. 2023

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Structural electronics, as well as flexible and wearable devices are applications that are possible by merging polymers with metal nanoparticles. However, using conventional technologies, it is challenging to fabricate plasmonic structures that remain flexible. We developed three-dimensional (3D) plasmonic nanostructures/polymer sensors via single-step laser processing and further functionalization with 4-nitrobenzenethiol (4-NBT) as a molecular probe. These sensors allow ultrasensitive detection with surface-enhanced Raman spectroscopy (SERS). We tracked the 4-NBT plasmonic enhancement and changes in its vibrational spectrum under the chemical environment perturbations. As a model system, we investigated the sensor’s performance when exposed to prostate cancer cells’ media over 7 days showing the possibility of identifying the cell death reflected in the environment through the effects on the 4-NBT probe. Thus, the fabricated sensor could have an impact on the monitoring of the cancer treatment process. Moreover, the laser-driven nanoparticles/polymer intermixing resulted in a free-form electrically conductive composite that withstands over 1000 bending cycles without losing electrical properties. Our results bridge the gap between plasmonic sensing with SERS and flexible electronics in a scalable, energy-efficient, inexpensive, and environmentally friendly way.

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“…It has been proved that the higher SERS performance occurs at the edge of the metallic structures. 48,56 Different kinds of metallic nanomaterials with verifying morphology have been designed and applied in SERS, which illustrate good performance such as nanodisks, 57,58 nanopores, 59–61 nanopillar, 62,63 nanoparticles, 64,65 nanoprime, 66,67 nano spheres, 68 nanostar, 69 nanocubic, 70 nanooctahedron 71 and nanowires. 72 Wang 73 designed and fabricated an Au@Ag core–shell structure with a strong localized plasma resonance effect.…”

Section: Surface-enhanced Raman Scattering (Sers)mentioning

confidence: 99%