Bioluminescent nanopaper for rapid screening of toxic substances
Liu, Jie (Institut Català de Nanociència i Nanotecnologia)
Morales-Narváez, Eden (Institut Català de Nanociència i Nanotecnologia)
Orozco, Jahir (Institut Català de Nanociència i Nanotecnologia)
Vicent i Huguet, Teresa (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Zhong, Guohua (Hua nan nong ye da xue)
Merkoçi, Arben (Institut Català de Nanociència i Nanotecnologia)

Data:	2018
Resum:	Environmental pollution is threatening human health and ecosystems as a result of modern agricultural techniques and industrial progress. A simple nanopaper-based platform coupled with luminescent bacteria Aliivibrio fischeri (A. fischeri) as a bio-indicator is presented here, for rapid and sensitive evaluation of contaminant toxicity. When exposed to toxicants, the luminescence inhibition of A. fischeri-decorated bioluminescent nanopaper (BLN) can be quantified and analyzed to classify the toxicity level of a pollutant. The BLN composite was characterized in terms of morphology and functionality. Given the outstanding biocompatibility of nanocellulose for bacterial proliferation, BLN achieved high sensitivity with a low cost and simplified procedure compared to conventional instruments for laboratory use only. The broad applicability of BLN devices to environmental samples was studied in spiked real matrices (lake and sea water), and their potential for direct and in situ toxicity screening was demonstrated. The BLN architecture not only survives but also maintains its function during freezing and recycling processes, endowing the BLN system with competitive advantages as a deliverable, ready-to-use device for large-scale manufacturing. The novel luminescent bacteria-immobilized, nanocelullose-based device shows outstanding abilities for toxicity bioassays of hazardous compounds, bringing new possibilities for cheap and efficient environmental monitoring of potential contamination.
Ajuts:	European Commission 689341 Ministerio de Economía y Competitividad SEV-2013-0295 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-260
Drets:	Tots els drets reservats.
Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Aliivibrio fischeri ; Bacterial nanocellulose ; Bioluminescent device ; Nanopaper ; Toxicity bioassay
Publicat a:	Nano research, Vol. 11, issue 1 (Jan. 2018) , p. 114-125, ISSN 1998-0000

DOI: 10.1007/s12274-017-1610-7

Post-print. Article 29 p, 2.4 MB

Post-print. Material suplementari 12 p, 4.1 MB

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