Surface Chemistry Analysis

The surface chemistry of nanoparticles plays a crucial role in determining their interactions with the surrounding environment, thereby influencing their functionality and applications in various fields such as drug delivery, catalysis, sensing, imaging, and environmental remediation. By elucidating the surface composition, surface reactivity and surface functionalization, surface chemistry studies can enhance functionality and performance across diverse fields.

What We Can Do for You

STEMart’ s surface charge determination services employ state-of-the-art techniques to measure the electrokinetic properties of nanoparticles accurately.

• Surface Composition Analysis
  The surface composition of nanoparticles can affect their reactivity, catalytic activity, electronic conductivity, and plasmonic resonance properties.
  STEMart utilizes the following analytical techniques to obtain information about the elemental composition and chemical states of elements of the surface.
  • X-ray Photoelectron Spectroscopy (XPS)
  • Auger Electron Spectroscopy (AES)
  • Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Spectroscopy (EDS)
  • Transmission Electron Microscopy (TEM) with Energy Dispersive X-ray Spectroscopy (EDS)
  • Secondary Ion Mass Spectrometry (SIMS)
• Surface Functionalization Analysis
  The chemical groups on a nanoparticle's surface can affect its biocompatibility, sensing ability and adsorption properties. By modifying the surface with specific ligands, receptors or chemicals, nanoparticles can be designed for enhanced selective cellular uptake for drug delivery systems, selective binging to target analytes for sensing, and retention of contaminants for environmental remediation.
  STEMart uses Fourier-Transform Infrared Spectroscopy (FTIR) to examine the presence and effectiveness of specific functional groups on the nanoparticle surfaces.
• Surface Reactivity Analysis
  The nature of the surface atoms and their electronic properties significantly affect the catalytic activity of nanoparticles. Different surface structures can provide varying numbers of active sites, thus influencing reaction rates.
  STEMart uses Temperature-Programmed Desorption (TPD) to explore the active sites on nanoparticle surfaces.

STEMart provides comprehensive nanoparticles surface chemistry analysis service to help researchers and industries tailor nanoparticle characteristics for specific applications, ensuring that they meet desired performance standards. For more information about our nanoparticles surface chemistry analysis service, please contact us