Chitosan-Coated Lignin Nanoparticles Enhance Adsorption and Proliferation of <i>Alcanivorax borkumensis</i> at the Hexadecane–Water Interface

Pete, Amber J.; Lee, Jin Gyun; Benton, Michael G.; Bharti, Bhuvnesh

doi:10.1021/acsestengg.3c00109

Cited by 1 publication

(2 citation statements)

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“…Different from previous studies that primarily used coatings to increase surface area for biofilm attachment [ 30 , 31 ], the P(3HB) coating functions differently by attracting bacterial communities. It achieves this by regulating the availability of limiting nutrients in the environment [ 78 , 79 ].…”

Section: Discussionmentioning

confidence: 97%

“…Additionally, research exploring chitosan-coated lignin nanoparticles has surfaced as another pathway for boosting biofilm growth. Lignin, a natural polymer derived from plant cell, and chitosan, sourced from crustacean shells, have shown promising effects in stimulating a 25–45% higher microbial attachment and growth rate [ 31 ]. These examples underscore the diverse range of bio-based compounds with the potential to enhance biofilm recruitment and bolster the ecological balance within marine environments, highlighting the outcomes of prior studies.…”

Section: Introductionmentioning

confidence: 99%

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Effects of poly(3-hydroxybutyrate) [P(3HB)] coating on the bacterial communities of artificial structures

Chai,

Syauqi,

Sudesh

et al. 2024

PLoS ONE

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The expanding urbanization of coastal areas has led to increased ocean sprawl, which has had both physical and chemical adverse effects on marine and coastal ecosystems. To maintain the health and functionality of these ecosystems, it is imperative to develop effective solutions. One such solution involves the use of biodegradable polymers as bioactive coatings to enhance the bioreceptivity of marine and coastal infrastructures. Our study aimed to explore two main objectives: (1) investigate PHA-degrading bacteria on polymer-coated surfaces and in surrounding seawater, and (2) comparing biofilm colonization between surfaces with and without the polymer coating. We applied poly(3-hydroxybutyrate) [P(3HB)) coatings on concrete surfaces at concentrations of 1% and 6% w/v, with varying numbers of coating cycles (1, 3, and 6). Our findings revealed that the addition of P(3HB) indeed promoted accelerated biofilm growth on the coated surfaces, resulting in an occupied area approximately 50% to 100% larger than that observed in the negative control. This indicates a remarkable enhancement, with the biofilm expanding at a rate roughly 1.5 to 2 times faster than the untreated surfaces. We observed noteworthy distinctions in biofilm growth patterns based on varying concentration and number of coating cycles. Interestingly, treatments with low concentration and high coating cycles exhibited comparable biofilm enhancements to those with high concentrations and low coating cycles. Further investigation into the bacterial communities responsible for the degradation of P(3HB) coatings identified mostly common and widespread strains but found no relation between the concentration and coating cycles. Nevertheless, this microbial degradation process was found to be highly efficient, manifesting noticeable effects within a single month. While these initial findings are promising, it’s essential to conduct tests under natural conditions to validate the applicability of this approach. Nonetheless, our study represents a novel and bio-based ecological engineering strategy for enhancing the bioreceptivity of marine and coastal structures.

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