Business Connect Logo

Water treatment membranes embedded with a stable and bactericidal nanodiamond material

Water treatment membranes embedded with a stable and bactericidal nanodiamond material

Publication Year:
Colon, Abelardo; Avalos, Javier; Weiner, Brad R.; Morell, Gerardo; Ríos, Rafael
Resource Type:
Journal Article
Develop a new type of water treatment membrane that is embedded with a stable antimicrobial polymer coating to control biofouling, which is a major challenge in water treatment processes.
Share to:

Resource Information


Filtration has emerged as a critical technology to reduce waterborne diseases caused by poor water quality. Filtration technology presents key challenges, such as membrane selectivity, permeability and biofouling. Nanomaterials can offer solutions to these challenges by varying the membranes’ mechanical and bactericidal properties. This research uses nanodiamond particles with facile surface functionality and biocompatibility properties that are added to membranes used for filtration treatments. Scanning and transmission electron microscopy (SEM and TEM) and Fourier transform infrared spectroscopy (FTIR) were performed to study the membrane surface. FTIR spectra confirms an increase in oxygen functional groups onto the ultradispersed diamond’s (UDD) surface following acid treatment. SEM images show particle deagglomeration of functionalized UDD at the membrane surface. Tensile strength tests were done to measure the UDD mechanical properties and Coliscan membrane filtration characterization was performed to determine the filter effectiveness. Polyether sulfone (PES) and polyvinylidene (PVDF) membranes expressed a change in their yield point when UDD was incorporated into the porous matrix. A significant microorganism reduction was obtained and confirmed using t-test analysis at a 95% level of confidence. UDD-embedded membranes exhibit a significant bactericidal reduction compared to commercial membranes suggesting these membranes have the potential to enhance current membrane filtration systems.

Resource Type

Journal Article

Publication Year



Colon, Abelardo; Avalos, Javier; Weiner, Brad R.; Morell, Gerardo; Ríos, Rafael



Relevant Country

United States

Specific Contaminants

Bacteria, Escherichia coli

Specific Solutions

Micrology Laboratories Coliscan membrane filtration method

University Affiliation

University of Puerto Rico

Business Connect Takeaways

Membrane filtration technology embedded with silver nanoparticles can effectively remove bacteria and viruses from water, and the silver nanoparticles can provide long-lasting antimicrobial activity.
The use of silver nanoparticles in water treatment membranes can reduce the need for chemical disinfectants and may be a more sustainable and cost-effective approach to water treatment.
The effectiveness of silver nanoparticle-embedded membranes can be influenced by factors such as water quality, membrane fouling, and the stability of the silver nanoparticles over time.

Something To Contribute?

Notice any missing or outdated information in our Knowledge Hub? We welcome your insights! Please contact us with the specific details, and we’ll make sure to review it promptly!


Up to 30% OFF!

See our Black Friday and Cyber Monday deals HERE