Reusable surface plasmon resonance chips allowing the quantitative and selective detection of mercury(ii) ions in water at the 0.01 nM level are reported. The surface-modified gold sensor consists of a rarefied self-assembled monolayer of octanethiol topped with a Langmuir-Blodgett monolayer of an amphiphilic and highly-specific chelator. The interdigitated architecture confers to the bilayer a high packing density, surface coverage, and binding-group accessibility.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c5an02523k | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effective multicolor visual biosensor for ochratoxin A detection enabled by DNAzyme catalysis and gold nanorod etching.
Mikrochim Acta
December 2024
Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.
A novel detection technique is introduced that offers sensitive and reliable ochratoxin A (OTA) detection. The method leverages the etching of gold nanorods (AuNRs) stabilized by hexadecyl trimethyl ammonium bromide (CTAB) using the oxidized form of 3,3',5,5'-tetramethyl benzidine sulfate (TMB), creating a susceptible multicolor visual detection system for OTA. The visual detection is enabled by Mg-assisted DNAzyme catalysis combined with the catalytic hairpin assembly (CHA) signal amplification strategy.
View Article and Find Full Text PDFControllable assembly of three-dimensional SERS substrate for highly sensitive detection of thiram residues in vegetables.
Food Chem
December 2024
State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. Electronic address:
In this work, a series of three-dimensional (3D) SERS substrate were successfully fabricated by assembling silver nanoparticles (AgNPs) onto a porous gelatin sponge (GS) for highly sensitive thiram residues detection in vegetables. These 3D micro-nanostructures could induce the sufficient surface plasmon resonance (SPR) effect of noble metals on their surface and achieve high enrichment of pollutant molecules. As crystal violet (CV) was used as a probe molecule, the lowest CV solution could be detected at 10 M, and the enhancement factor (EF) was calculated to be 9.
View Article and Find Full Text PDFAtractylodin alleviates polycystic ovary syndrome by inhibiting granule cells ferroptosis through pyruvate dehydrogenase kinase 4-mediated JAK-STAT3 pathway.
Int Immunopharmacol
December 2024
Departments of Gynaecology and Obstetrics, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China. Electronic address:
Background: Polycystic ovary syndrome (PCOS) is a common endocrine disorder, and its close relationship with oxidative stress has been well-documented. Atractylodin (ATR) plays a role in the treatment of many diseases through its antioxidant function. However, its function in PCOS remains unexplored.
View Article and Find Full Text PDFSpectroscopic amplifier for ultrahigh plasmonic-based enhancement of the Hyper-Raman scattering procedure.
Nanotechnology
December 2024
Department of Physics, King Faisal University, King Faisal University P.O. 380 Ahsaa 31982, Al Ahsa, 31982, SAUDI ARABIA.
An anisotropic plasmonic trimer is proposed as an effective spectroscopic amplifier for the maximum signal enhancement of the Hyper-Raman Scattering (HRS) process. The three-particle system is composed of asymmetric Au nanorings arranged collinearly in a J-aggregate configuration and illuminated by a longitudinally polarized light. The optical properties of the considered trimer have been numerically simulated by the Finite-Difference Time-Domain (FDTD) method.
View Article and Find Full Text PDFDesign, Synthesis, and Biological Evaluation of 3,4-Dihydroisoquinolin-1()-one Derivatives as Protein Arginine Methyltransferase 5 Inhibitors for the Treatment of Non-Hodgkin's Lymphoma.
J Med Chem
December 2024
Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, China.
Through catalyzing the transfer of methyl groups onto the guanidinium of arginine, protein arginine methyltransferase 5 (PRMT5) was essential to the cell growth of cancer cells. By utilizing a scaffold hopping strategy, a novel series of 3,4-dihydroisoquinolin-1()-one derivatives were designed and synthesized. Through a systematic SAR study, demonstrated excellent PRMT5 inhibitory activity, potent antiproliferative activity against Z-138, favorable pharmacokinetic profiles, and low hERG toxicity.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!