The preparation and characterization of self-assembled monolayers on copper with n-alkyl and functional thiols was investigated. Well-ordered monolayers were obtained, while the copper remained oxide-free. Direct attachment of N-succinimidyl mercaptoundecanoate (NHS-MUA) onto the copper surface allowed for the successful attachment of biomolecules, such as β-d-glucosamine, the tripeptide glutathione, and biotin. Notably, the copper surfaces remained oxide-free even after two reaction steps. All monolayers were characterized by static water contact angle measurements, X-ray photoelectron spectroscopy, and infrared reflection absorption spectroscopy. In addition, the biotinylated copper surfaces were employed in the immobilization of biomolecules such as streptavidin.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/la200932w | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Influence of Deposition Temperature on Cu-BDC Surface-Anchored Metal-Organic Framework Formation.
J Phys Chem C Nanomater Interfaces
January 2025
Furman University, Greenville, South Carolina 29613, United States.
Surface-anchored metal-organic frameworks (surMOFs) are crystalline, nanoporous, supramolecular materials mounted to substrates that have the potential for integration within device architectures relevant for a variety of electronic, photonic, sensing, and gas storage applications. This research investigates the thin film formation of the Cu-BDC (copper benzene-1,4-dicarboxylate) MOF system on a carboxylic acid-terminated self-assembled monolayer by alternating deposition of solution-phase inorganic and organic precursors. X-ray diffraction (XRD) and atomic force microscopy (AFM) characterization demonstrate that crystalline Cu-BDC thin films are formed via Volmer-Weber growth.
View Article and Find Full Text PDFUltrahigh carrier mobility and multidirectional piezoelectricity in 2D Janus copper-containing chalcogenide monolayers.
Phys Chem Chem Phys
January 2025
Institute for Computational Materials Science, Joint Center for Theoretical Physics, and Key Laboratory for High Efficiency Energy Conversion Science and Technology of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
Two-dimensional (2D) materials have attracted enormous research attention due to their remarkable properties and potential applications in electronic and optoelectronic devices. In this work, Janus 2D copper-containing chalcogenides, CuPSeS and CuPTeSe monolayers, are proposed and studied systematically based on first-principles calculations. These two Janus-structured materials possess the same thermal and dynamic stability as the perfect CuPSe structure.
View Article and Find Full Text PDFImmobilization of 4-MBA & Cu on Au nanoparticles modified screen-printed electrode for glyphosate detection.
Talanta
January 2025
College of Agricultural Engineering, Shanxi Agricultural University, Taigu, 030801, China; Dryland Farm Machinery Key Technology and Equipment Key Laboratory of Shanxi Province, Taigu, 030801, China.
This study introduces an innovative electrochemical biosensor, engineered through the functionalization screen-printed electrode (SPE) with a coordination complex comprised of 4-mercaptobenzoic acid (4-MBA) and copper ions (Cu), achieving precise quantitative determination of glyphosate. Electrodepositing gold nanoparticles (AuNPs) onto the electrode surface, forming a self-assembled monolayer (SAM) of 4-MBA via thiol-gold interactions, and immobilizing Cu via coordination bonding with the monolayer, finalizing the electrochemical biosensor construction as Cu/4-MBA/AuNPs/SPE. The successful modification of the biosensor interface is confirmed through scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and electrochemical characterization.
View Article and Find Full Text PDFOral multistage nanomedicine for synergistic chemo/chemodynamic/near-infrared-II photothermal cancer therapy.
J Colloid Interface Sci
January 2025
Department of Chemistry, Northeast Normal University, Changchun 130024, PR China. Electronic address:
The oral administration of drugs for cancer therapy can maintain optimal blood concentrations, is biologically safe and simple, and is preferred by many patients. However, the complex lumen environment, mucus layer, and intestinal epithelial cells are biological barriers that hinder the absorption of orally administered drugs. In this study, sea urchin-like manganese-doped copper selenide nanoparticles (Mn-CuSe NPs) were designed using an anion exchange method and coated with calcium alginate and chitosan (AC) to form Mn-CuSe@AC capsules.
View Article and Find Full Text PDFHigh sensitivity direct magnetic field detection based metrology for ultra-thin magnetic films and Li-ion cells.
Rev Sci Instrum
December 2024
Tata Institute of Fundamental Research Hyderabad, Sy No 36/P, Serilingampally Mandal, Hyderabad 500046, India.
Ultra-low magnetic field sensing is emerging as a tool for materials' diagnostics, particularly for the operando studies of electrochemical systems. A magnetic metrology system having the capability of sensing fields as low as ∼1.88 pT has been setup for such studies using a commercial atomic magnetometer.
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!