Strategic Water Infrastructure Laboratory, School of Civil, Mining, Environmental and Architectural Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
Strategic Water Infrastructure Laboratory, School of Civil, Mining, Environmental and Architectural Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
Water Res. 2023 Apr 15;233:119790. doi: 10.1016/j.watres.2023.119790. Epub 2023 Feb 24.
Microplastics as vectors for contaminants in the environment is becoming a topic of public interest. Microplastics have been found to actively adsorb heavy metals, per-fluorinated alkyl substances (PFAS), polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons (PAHs), pharmaceuticals and personal care products (PPCPs) and polybrominated diethers (PBDs) onto their surface. Particular interest in microplastics capacity to adsorb antibiotics needs further attention due to the potential role this interaction plays on antibiotic resistance. Antibiotic sorption experiments have been documented in the literature, but the data has not yet been critically reviewed. This review aims to comprehensively assess the factors that affect antibiotic sorption onto microplastics. It is recognised that the physico- chemical properties of the polymers, the antibiotic chemical properties, and the properties of the solution all play a crucial role in the antibiotic sorption capacity of microplastics. Weathering of microplastics was found to increase the antibiotic sorption capacity by up to 171%. An increase in solution salinity was found to decrease the sorption of antibiotics onto microplastics, in some instances by 100%. pH also has a substantial effect on sorption capacity, illustrating the significance of electrostatic interactions on the sorption of antibiotics onto microplastics. The need for a uniform experimental design when testing antibiotic sorption is highlighted to remove inconsistencies in the data currently presented. Current literature examines the link between antibiotic sorption and antibiotic resistance, however, further studies are still required to fully understand this emerging global crisis.
微塑料作为环境中污染物的载体正成为公众关注的话题。研究发现，微塑料能够主动吸附重金属、全氟烷基物质 (PFAS)、多氯联苯 (PCBs)、多环芳烃 (PAHs)、药物和个人护理产品 (PPCPs) 和多溴二醚 (PBDs) 到其表面。由于这种相互作用对抗生素耐药性可能产生的影响，人们对微塑料吸附抗生素的能力特别感兴趣，需要进一步关注。抗生素吸附实验已在文献中记录，但数据尚未经过严格审查。本综述旨在全面评估影响抗生素吸附到微塑料的因素。人们认识到聚合物的物理化学性质、抗生素的化学性质以及溶液的性质都在微塑料对抗生素的吸附能力中起着至关重要的作用。研究发现，微塑料的风化会使抗生素的吸附能力增加高达 171%。溶液盐度的增加会降低抗生素在微塑料上的吸附，在某些情况下，吸附量会减少 100%。pH 值也对吸附能力有很大影响，这说明了静电相互作用对抗生素在微塑料上吸附的重要性。强调在测试抗生素吸附时需要采用统一的实验设计，以消除当前呈现的数据中的不一致性。现有文献研究了抗生素吸附与抗生素耐药性之间的联系，但仍需要进一步研究以充分了解这一新兴的全球危机。
