Results 1 to 10 of about 1,408 (127)

SERS Hotspot Engineering by Aerosol Self-Assembly of Plasmonic Ag Nanoaggregates with Tunable Interparticle Distance. [PDF]

Adv Sci (Weinh), 2022
AbstractSurface‐enhanced Raman scattering (SERS) is a powerful sensing technique. However, the employment of SERS sensors in practical applications is hindered by high fabrication costs from processes with limited scalability, poor batch‐to‐batch reproducibility, substrate stability, and uniformity.
Li H, Merkl P, Sommertune J, Thersleff T, Sotiriou GA.   +4 more
europepmc   +3 more sources

SERS Hotspot Engineering by Aerosol Self‐Assembly of Plasmonic Ag Nanoaggregates with Tunable Interparticle Distance (Adv. Sci. 22/2022) [PDF]

Advanced science, 2022
Pesticide Residue Detection In article number 2201133 by Georgios A. Sotiriou and co‐workers, flame aerosol technology is used for the rapid self‐assembly of uniform surface‐enhanced Raman scattering (SERS) sensing films. These robust nano‐sensors can detect pesticide residues on apple surface in a short time of 5 minutes without destroying the fruit ...
Li, Haipeng, Merkl, Padryk, Sommertune, Jens, Thersleff, Thomas, Sotiriou, Georgios A.   +4 more
europepmc   +2 more sources

Utilizing Freeze-Thaw-Ultrasonication to Prepare Mesoporous Silica-Encapsulated Colloidal Silver Nanoaggregates with Long-Term Surface-Enhanced Raman Spectroscopy Activity [PDF]

Sensors
Surface-enhanced Raman spectroscopy (SERS) is widely employed due to its high sensitivity and distinctive fingerprinting capabilities. Colloidal nanoaggregates are commonly used as SERS substrates because of their mobility and the abundance of “hotspots”.
Shuoyang Yan, Ling Chen, Zhiyang Zhang
doaj   +2 more sources

Controlling Selectivity at the First Hydrogenation Level: Synthesis of 3-Hydroxyisoindolines by Heterogeneously Silver-Catalyzed Monohydrogenation of Phthalimides. [PDF]

Adv Sci (Weinh)
3‐Hydroxylactams are obtained from phthalimides through a heterogeneous catalyzed chemoselective hydrogenation, able to stop the process at the first hydrogenation level. By using a rationally designed [Ag/Al2O3] recyclable solid nanocatalyst, a wide range of cyclic hemiamidals are accesed through a full atom‐economical reaction that preserves (hetero ...
Lluna-Galán C, Adam R, Cabrero-Antonino JR.   +2 more
europepmc   +2 more sources

Building lactams by highly selective hydrodeoxygenation of cyclic imides using an alumina-supported AgRe bimetallic nanocatalyst [PDF]

Nature Communications
The rational design of robust nanocatalysts containing the suitable active sites for building relevant organic compounds, such as lactams, is a desired approximation towards the development of a sustainable fine chemistry field. In that sense, the design
Carles Lluna-Galán, Juan Camilo Arango-Daza, Daviel Gómez, Patricia Concepción, Rong Sun, Jose J. Calvino, Laura Simonelli, Rosa Adam, Jose R. Cabrero-Antonino   +8 more
doaj   +2 more sources

Development of Efficient Supramolecular Photostabilizer for Carotenoids and Retinoids: Analyses and Application Research. [PDF]

J Cosmet Dermatol
ABSTRACT Background Carotenoids and retinol are well known for their potent antioxidant and biological properties in pharmaceuticals, foods, and cosmetics. However, their poor photostability presents a significant challenge that cannot be effectively addressed through simple formulation strategies such as encapsulation.
Zhao M, Chen S, Hu K, Evseenko VI, Meteleva ES, Zelikman MV, Dushkin AV, Mastova AV, Ulyanova MA, Kononova PA, Selyutina OY, Xu W, Polyakov NE.   +12 more
europepmc   +2 more sources

Plasma-Tunable Metasurfaces for SERS Nanosensing of Hazardous Chemicals. [PDF]

Small
One‐step oxygen plasma sculpting of copper into vertically aligned oxide nanosheets is reported via energetic ion bombardment and defect‐mediated growth. Magnetron‐sputtered silver nanoparticles decorate these sheets to yield a plasmonic metasurface whose network of hot spots amplifies multi‐wavelength SERS signals for explosive and related hazardous ...
Shvalya V, Breus A, Baranov O, Vengust D, Zavašnik J, Cvelbar U.   +5 more
europepmc   +2 more sources

Raspberry-Like Plasmonic Nanoaggregates with Programmable Hierarchical Structures for Reproducible SERS Detection of Wastewater Pollutants and Biomarkers. [PDF]

Anal Chem
Conventional solid-based SERS substrates often face challenges with inconsistent sample distribution, while liquid-based SERS substrates are prone to aggregation and precipitation, resulting in irreproducible signals in both cases.
Xie H, Zhu S, Wen P, Zhou D, Yin Y, Lan Y, Lee TC, Zhang Y, Pu Q.   +8 more
europepmc   +3 more sources

Ag-Sensitized NIR-Emitting Yb³⁺-Doped Glass-Ceramics

Applied Sciences, 2020
The optical photoluminescent (PL) emission of Yb3+ ions in the near infrared (NIR) spectral region at about 950−1100 nm has many potential applications, from photovoltaics to lasers and visual devices.
Francesco Enrichi, Elti Cattaruzza, Tiziano Finotto, Pietro Riello, Giancarlo C. Righini, Enrico Trave, Alberto Vomiero   +6 more
doaj   +1 more source

Polycaprolactone-based, porous CaCO3 and Ag nanoparticle modified scaffolds as a SERS platform with molecule-specific adsorption [PDF]

, 2020
Surface-enhanced Raman scattering (SERS) is a high-performance technique allowing detection of extremely low concentrations of analytes. For such applications, fibrous polymeric matrices decorated with plasmonic metal nanostructures can be used as ...
Gorin, Dmitry, Parakhonskiy, Bogdan, Prikhozhdenko, Ekaterina, Saveleva, Mariia, Skirtach, Andre, Yashchenok, Alexey   +5 more
core   +2 more sources