Ecotoxicity Analyses of Nanomaterials

Zhang, Peng

doi:10.1002/9783527689125.ch15

Cited by 2 publications

(3 citation statements)

References 159 publications

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“…It has been reported that the Zn 2+ ions are toxic towards S. cerevisiae (Kasemets et al, 2009). Similarly, Cu NM exhibited bacterial toxicity in the same manner (Zhang, 2016).…”

Section: Release Of Toxic Ionsmentioning

confidence: 88%

Anti-bacterial activity of inorganic nanomaterials and their antimicrobial peptide conjugates against resistant and non-resistant pathogens

Pardhi

Karaman

Timonen

et al. 2020

International Journal of Pharmaceutics

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Our report represents a comprehensive review on the antibacterial activity of inorganic nanomaterials and antimicrobial peptides, and how concomitant use of the two can effectively tackle a range of bacterial infections which is a rapidly escalating issues in public health care worldwide. We believe this is of particular current interest with regard to "antimicrobial resistance" being declared one of the top-10 global health threats in 2019 by the WHO.In this group of authors, we have teamed up within the NordForsk-funded university hub Nordic POP (Patient Oriented Products), which we wish to showcase with this contribution. We are currenlty carrying out joint research supported by this network within the topic of the review, so we view this a valuable contribution also within the dissemination of Nordic POP activities.

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“…It has been reported that the Zn 2+ ions are toxic towards S. cerevisiae (Kasemets et al, 2009). Similarly, Cu NM exhibited bacterial toxicity in the same manner (Zhang, 2016).…”

Section: Release Of Toxic Ionsmentioning

confidence: 88%

Anti-bacterial activity of inorganic nanomaterials and their antimicrobial peptide conjugates against resistant and non-resistant pathogens

Pardhi

Karaman

Timonen

et al. 2020

International Journal of Pharmaceutics

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“…The high affinity and binding of rare earth ions to phosphates and carboxyl groups in the bacterial cell wall have previously been reported to cause this effect. 48 Insoluble La 2 O 3 and soluble La(NO 3 ) 3 were both demonstrated to be effective in preventing microbial growth and biodeterioration in MWF, as demonstrated by the growth prevention data and comparison to formaldehyde in Table 1, and the biodegradation and microbial growth data in Figure 1. Further, both La 2 O 3 and La(NO 3 ) 3 induced cellular damage (toxicity) to the indigenous microbial consortium compared to the unexposed control (as shown in Figure 6).…”

Section: Discussionmentioning

confidence: 99%

“…As shown in the SEM micrographs of Figure , the nucleation and formation of LaPO 4 on the cell wall may have caused the bacteria to deform as a response to the attached solid. The high affinity and binding of rare earth ions to phosphates and carboxyl groups in the bacterial cell wall have previously been reported to cause this effect . Insoluble La 2 O 3 and soluble La(NO 3 ) 3 were both demonstrated to be effective in preventing microbial growth and biodeterioration in MWF, as demonstrated by the growth prevention data and comparison to formaldehyde in Table , and the biodegradation and microbial growth data in Figure .…”

Section: Discussionmentioning

confidence: 99%

Phosphorus Depletion as a Green Alternative to Biocides for Controlling Biodegradation of Metalworking Fluids

Azimi

Thompson

2017

Environ. Sci. Technol.

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Metalworking fluids (MWFs) are used as lubricants and coolants in the manufacturing operations. Their biodeterioration, while in operation, is a widespread problem leading to poor performance and worker health issues. Adding biocides, though effective in reducing microbial growth, leads to the production of more recalcitrant wastewaters that are difficult to dispose or recycle on-site. Increasing environmental concerns have led to robust legislation for reducing/eliminating the use of toxic biocides in MWFs, stimulating a growing interest in the development/application of alternative biological preservation strategies. In this study, inducing nutrient imbalance was investigated for controlling microbial growth in MWFs. Phosphorus was immobilized employing insoluble LaO to form LaPO. Concentrations of LaO greater than 0.08%w (%w = weight percent) completely inhibited microbial growth (from 1.4 × 10 to 0 CFU/mL) and hindered biodegradation. Raman spectroscopy suggested that LaO converted intracellular phosphorus into LaPO. The growth inhibition potentials of both 0.06%w La(NO) and LaO were found to be superior to formaldehyde. The antimicrobial property of LaO (i.e., inhibition) was tenable by adding sufficient phosphate, acting as an on/off switch for controlling microbial growth in MWFs. This technology offers the potential to reduce/eliminate the use of biocides in MWFs, improves the feasibility of end-of-life biological treatment, and closes the water loop.

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Ecotoxicity Analyses of Nanomaterials

Cited by 2 publications

References 159 publications

Anti-bacterial activity of inorganic nanomaterials and their antimicrobial peptide conjugates against resistant and non-resistant pathogens

Anti-bacterial activity of inorganic nanomaterials and their antimicrobial peptide conjugates against resistant and non-resistant pathogens

Phosphorus Depletion as a Green Alternative to Biocides for Controlling Biodegradation of Metalworking Fluids

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