Facile fabrication of configuration controllable self-assembled Al nanostructures as UV SERS substrates

Nanoscale ◽  
2018 ◽  
Vol 10 (48) ◽  
pp. 22737-22744 ◽  
Author(s):  
Dong Su ◽  
Shenglin Jiang ◽  
Muni Yu ◽  
Guangzu Zhang ◽  
Huan Liu ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Single Molecule ◽  
Uv Light ◽  
Complex Mixtures ◽  
Near Surface ◽  
Sers Substrates ◽  
Facile Fabrication ◽  
Self Assembled

The resonantly enhanced near-surface electromagnetic field of Al nanostructures (NSs) excited with UV light offers an effective and precise approach to obtain vibration information in complex mixtures up to a single-molecule magnitude.

scholarly journals Magnetic Hysteresis at 10 K in Single Molecule Magnet Self‐Assembled on Gold

2021 ◽  
pp. 2000777
Author(s):  
Chia‐Hsiang Chen ◽  
Lukas Spree ◽  
Emmanouil Koutsouflakis ◽  
Denis S. Krylov ◽  
Fupin Liu ◽  
...  
Keyword(s):  
Single Molecule ◽  
Magnetic Hysteresis ◽  
Single Molecule Magnet ◽  
Self Assembled

scholarly journals Silver nanoparticles: green synthesis, self-assembled nanostructures and their application as SERS substrates

2015 ◽  
Vol 39 (4) ◽  
pp. 2839-2846 ◽  
Author(s):  
Elias de Barros Santos ◽  
Natiara Vaughn Madalossi ◽  
Fernando Aparecido Sigoli ◽  
Italo Odone Mazali
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Probe Molecules ◽  
Citrus Peel ◽  
Sers Substrates ◽  
Self Assembled ◽  
Raman Probe

Plasmonic silver nanoparticles synthesized using citrus peel extracts exhibit SERS activity for different Raman probe molecules.

The dynamic behaviour of a single molecule inserted in a self-assembled monolayer matrix at low temperature

2004 ◽  
Vol 15 (4) ◽  
pp. S137-S141 ◽  
Author(s):  
Satoshi Wakamatsu ◽  
Shintaro Fujii ◽  
Uichi Akiba ◽  
Masamichi Fujihira
Keyword(s):  
Low Temperature ◽  
Single Molecule ◽  
Dynamic Behaviour ◽  
Self Assembled Monolayer ◽  
Self Assembled

Facile fabrication of polyvinyl alcohol-based hydrophobic, fluorescent film via Hantzsch reaction for broadband UV protection

2021 ◽  
Author(s):  
Hongchen Liu ◽  
Hongying Yang ◽  
Kunkun Zhu ◽  
Fang Peng ◽  
Lei Guo ◽  
...  
Keyword(s):  
Polyvinyl Alcohol ◽  
Chemical Modification ◽  
Human Health ◽  
Uv Light ◽  
Uv Protection ◽  
Hantzsch Reaction ◽  
Uv Absorbers ◽  
Traditional Preparation ◽  
Facile Fabrication

Excessive exposure to ultraviolet (UV) light is harmful to human health. However, the traditional preparation of anti-UV films through doping UV absorbers is unstable. Chemical modification of polyvinyl alcohol (PVA)...

scholarly journals Facile Detection and Quantification of Acetamiprid Using a Portable Raman Spectrometer Combined with Self-Assembled Gold Nanoparticle Array

Chemosensors ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 327
Author(s):  
Panxue Wang ◽  
Yan Sun ◽  
Li Wang ◽  
Xiang Li ◽  
Miaomiao Liu ◽  
...  
Keyword(s):  
Gold Nanoparticle ◽  
Correlation Coefficients ◽  
Nanoparticle Array ◽  
Sers Signal ◽  
Sers Substrates ◽  
Specificity And Sensitivity ◽  
Exciting Opportunity ◽  
Sers Detection ◽  
Self Assembled ◽  
Detection And Quantification

Rapid and facile determination of pesticides is critically important in food and environmental monitoring. This study developed a self-assembled gold nanoparticle array based SERS method for highly specific and sensitive detection of acetamiprid, a neonicotinoid pesticide that used to be difficult in SERS analysis due to its low affinity with SERS substrates. SERS detection and quantification of acetamiprid was conducted with self-assembled gold nanoparticle arrays at the interface of chloroform and water as the enhancing substrate. Since targets dissolved in chloroform (organic phase) also have access to the hot-spots of Au NP array, the developed method exhibited good sensitivity and specificity for acetamiprid determination. Under the optimal conditions, SERS intensities at Raman shifts of 631 cm−1 and 1109 cm−1 displayed a good linear relationship with the logarithm concentration of acetamiprid in the range of 5.0 × 10−7 to 1.0 × 10−4 mol/L (0.11335 ppm to 22.67 ppm), with correlation coefficients of 0.97972 and 0.97552, respectively. The calculated LOD and LOQ of this method were 1.19 × 10−7 mol/L (0.265 ppb) and 2.63 × 10−7 mol/L (0.586 ppb), respectively, using SERS signal at 631 cm−1, and 2.95 × 10−7 mol/L (0.657 ppb) and 3.86 × 10−7 mol/L (0.860 ppb) using SERS signal at 1109 cm−1, respectively. Furthermore, the developed SERS method was successfully applied in determining acetamiprid on the surface of apple and spinach. This method offers an exciting opportunity for rapid detection of acetamiprid and other organic pesticides considering its advantages of simple preparation process, good specificity and sensitivity, and short detection time (within 1 h).

scholarly journals Mono- and bithiophene-substituted diarylethene photoswitches with emissive open or closed forms

2019 ◽  
Vol 15 ◽  
pp. 2344-2354 ◽  
Author(s):  
A Lennart Schleper ◽  
Mariano L Bossi ◽  
Vladimir N Belov ◽  
Stefan W Hell
Keyword(s):  
Visible Light ◽  
Single Molecule ◽  
Ring Opening ◽  
Uv Light ◽  
Visible Region ◽  
Super Resolution ◽  
Ring Closure ◽  
Low Emission ◽  
Fluorescence Modulation ◽  
High Degree

We present a new series of photochromic 1,2-bis(2-ethylbenzo[b]thiophen-3-yl)perfluorocyclopentenes with an oxidized benzothiophene core (O) or a nonoxidized one, decorated with mono- (Th1) and bithiophene (Th2) units attached to positions 6 and 6′ (Sy = symmetric) or only to position 6 (As = asymmetric). “Oxidized” compounds have highly fluorescent closed forms emitting in the visible region (yellow to red). The dyes with nonoxidized benzothiophenes possess fluorescent open forms with rather low emission efficiency. The photoswitching kinetics was studied at several wavelengths with UV and visible light. New diarylethenes underwent ring-closure reactions by irradiation with UV light (365 nm, 405 nm), and the reversible ring-opening by irradiation with visible light (470 nm, 530 nm). The on-switching of fluorescence due to the ring-closure reaction was observed also with visible light of 470 nm (to an extent of 10% for compound SyOTh 1 ) and attributed to the Urbach tail effect. Due to a high degree of fluorescence modulation (>270), good fatigue resistance and large fluorescence quantum yield, compound SyOTh 1 emerged as a candidate for single-molecule based super-resolution fluorescence microscopy.

Facile fabrication of fluoro-polymer self-assembled ZnO nanoparticles mediated, durable and robust omniphobic surfaces on polyester fabrics

2020 ◽  
Vol 235 ◽  
pp. 109565 ◽  
Author(s):  
U.G. Mihiri Ekanayake ◽  
D.M.S.N. Dissanayake ◽  
N. Rathuwadu ◽  
R.K.K.G.R.G Kumarasinghe ◽  
Sanjeewa K. Rodrigo ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
Polyester Fabrics ◽  
Facile Fabrication ◽  
Self Assembled

Measurements of Single-Molecule Bond-Rupture Forces between Self-Assembled Monolayers of Organosilanes with the Atomic Force Microscope

Langmuir ◽  
1997 ◽  
Vol 13 (14) ◽  
pp. 3761-3768 ◽  
Author(s):  
L. A. Wenzler ◽  
G. L. Moyes ◽  
G. N. Raikar ◽  
R. L. Hansen ◽  
J. M. Harris ◽  
...  
Keyword(s):  
Atomic Force Microscope ◽  
Single Molecule ◽  
Self Assembled Monolayers ◽  
Bond Rupture ◽  
Atomic Force ◽  
Assembled Monolayers ◽  
Self Assembled
Sign in / Sign up

Export Citation Format

Share Document