We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
The effects of metals and polymer types on the development of biofilm on microplastic surface
Summary
Researchers examined biofilm development on three polymer types (PVC, polystyrene, and polyethylene) in the presence of three heavy metals (lead, chromium, and cadmium) to determine how metal contamination influences the formation and composition of plastisphere communities. The study assessed whether metal-microplastic co-contamination alters the structure of microbial biofilms that colonize plastic surfaces in aquatic environments.
Once released into the environment, microplastics (MP) are quickly colonized by various microorganisms. Over time, they can form a stable biofilm on their surface, which can alter the properties of MPs and also influence the interactions of MPs with the surrounding environment. The aim of this study was to investigate the formation of a biofilm on three types of MPs (PVC 485 ± 338 µm, PS 127 ± 30 µm, PE 192 ± 129 µm) in the presence of three different metals (Pb, Cr, Cd). Each MP type (5 g/L) was aged separately with each metal type (5 µg/L) in a freshwater from a natural stream for six weeks. After the first and sixth weeks, the biofilm was evaluated by determining the mass of the biofilm, the amount of extracellular polymeric substances (EPS) and the concentration of chlorophyll a. The polymer type of the MP had a major influence on the presence of biofilm; almost 50 Also see: https://micro2024.sciencesconf.org/559434/document
Sign in to start a discussion.
More Papers Like This
The effects of metals and polymer types on the development of biofilm on microplastic surface
Researchers investigated biofilm formation on three types of microplastics — PVC, polystyrene, and polyethylene — in the presence of three metals (lead, chromium, cadmium) in freshwater over six weeks, measuring biofilm mass, extracellular polymeric substances, and chlorophyll-a content at weeks one and six. They found that polymer type was the dominant factor influencing biofilm development, with nearly 50% of variation in biofilm characteristics attributable to the specific plastic substrate rather than the metal contaminants present.
Structural and Functional Characteristics of Microplastic Associated Biofilms in Response to Temporal Dynamics and Polymer Types
Researchers found that biofilm structural and functional characteristics on microplastics differ significantly depending on polymer type (polyethylene, polypropylene, and polystyrene) and change over time, with implications for understanding microbial colonization and the plastisphere.
Structural Diversity in Early-Stage Biofilm Formation on Microplastics Depends on Environmental Medium and Polymer Properties
This study examined the early stages of bacterial biofilm formation on different types of plastic surfaces in different environmental media, finding that both the growth medium and the polymer type influenced which microbial communities colonized the plastic. These plastic-associated biofilms (the plastisphere) can make microplastics more appealing to filter-feeding organisms that mistake them for food.
Sorption behavior of Pb(II) onto polyvinyl chloride microplastics affects the formation and ecological functions of microbial biofilms
Researchers found that lead sorption onto PVC microplastics significantly affected microbial biofilm formation and ecological functions, with lead-enriched microplastics altering biofilm community structure and metabolic activities in aquatic systems.
Metal leaching from plastics in the marine environment: An ignored role of biofilm.
Researchers investigated how biofilms on marine plastics influence metal leaching, finding that microbial colonization significantly alters the release rates of metal additives from common polymers, representing a previously underappreciated pathway for heavy metal transfer from plastic debris into marine ecosystems.