Concentration-dependent effects of carbon nanoparticles in gram-negative bacteria determined by infrared spectroscopy with multivariate analysis

With increasing production of carbon nanoparticles (CNPs), environmental release of these entities becomes an ever-greater inevitability. However, many questions remain regarding their impact on soil microorganisms. This study examined the effects of long or short multiwalled carbon nanotubes (MWCNT...

Celý popis

Uložené v:

Podrobná bibliografia
Vydané v:	Environmental pollution (1987) Ročník 163; s. 226 - 234
Hlavní autori:	Riding, Matthew J., Martin, Francis L., Trevisan, Júlio, Llabjani, Valon, Patel, Imran I., Jones, Kevin C., Semple, Kirk T.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Kidlington Elsevier Ltd 01.04.2012 Elsevier
Predmet:	Alterations Animal, plant and microbial ecology Applied ecology Applied sciences Bacteria Biological and medical sciences Biological and physicochemical properties of pollutants. Interaction in the soil Buckminsterfullerene Carbon Carbon nanoparticles carbon nanotubes DNA Dose-Response Relationship, Drug drug effects Earth sciences Earth, ocean, space Ecotoxicology, biological effects of pollution Engineering and environment geology. Geothermics Environmental Monitoring Environmental Monitoring - methods Exact sciences and technology fullerene Fullerenes Fullerenes - toxicity Fundamental and applied biological sciences. Psychology Gram-negative bacteria Gram-Negative Bacteria - drug effects Infrared spectroscopy lipids methods Multivariate Analysis Nanoparticles Nanotoxicity Nanotubes, Carbon Nanotubes, Carbon - toxicity Pollution Pollution, environment geology Soil and sediments pollution soil microorganisms Soot Spectra Spectroscopy, Fourier Transform Infrared Terrestrial environment, soil, air Toxicity Toxicity Tests Toxicity Tests - methods Infrared spectroscopy Nanotoxicity Gram-negative bacteria Carbon nanoparticles Multivariate analysis Terrestrial environment Pseudomonadales Ecotoxicology Nanoparticle Toxicity Carbon nanotubes Pseudomonas fluorescens Soil pollution Infrared spectrometry Multiwalled nanotube Environment impact Fullerenes Bacteria Pseudomonadaceae Nanostructured materials Gram negative bacteria
ISSN:	0269-7491, 1873-6424, 1873-6424
On-line prístup:	Získať plný text
Tagy:	Pridať tag Žiadne tagy, Buďte prvý, kto otaguje tento záznam!

Popis
Shrnutí:	With increasing production of carbon nanoparticles (CNPs), environmental release of these entities becomes an ever-greater inevitability. However, many questions remain regarding their impact on soil microorganisms. This study examined the effects of long or short multiwalled carbon nanotubes (MWCNTs), C60 fullerene and fullerene soot in Gram-negative bacteria. Attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy was applied to derive signature spectral fingerprints of effects. A concentration-dependent response in spectral alterations was observed for each nanoparticle type. Long or short MWCNTs and fullerene soot gave rise to similar alterations to lipids, Amide II and DNA. The extent of alteration varies with nanoparticle size, with smaller short MWCNTs resulting in greater toxicity than long MWCNTs. Fullerene soot was the least toxic. C60 results in the most distinct and largest overall alterations, notably in extensive protein alteration. This work demonstrates a novel approach for assaying and discriminating the effects of CNPs in target systems. ► Unique biochemical changes occur in bacteria following exposure to particular carbon nanoparticle. ► Biochemical alterations become more pronounced with increasing concentration. ► Smaller nanoparticles result in greater biochemical changes ascertained by IR spectroscopy with multivariate analysis. Carbon nanoparticle-induced distinctive biochemical alterations in Gram-negative bacteria can be mechanistically fingerprinted using IR spectroscopy with multivariate analysis.
Bibliografia:	http://dx.doi.org/10.1016/j.envpol.2011.12.027 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0269-7491 1873-6424 1873-6424
DOI:	10.1016/j.envpol.2011.12.027