Developments in micro-and nano-defects detection using bacterial cells

Telmo G. Santos; R. M. Miranda; M. Teresa Vieira; A. Rita Farinha; Telma J. Ferreira; Luisa Quintino; Pedro Santos Vilaca da Silva; Carla C. C. R. de Carvalho

doi:10.1016/j.ndteint.2015.11.002

Developments in micro-and nano-defects detection using bacterial cells

Telmo G. Santos^*
, R. M. Miranda
, M. Teresa Vieira
, A. Rita Farinha
, Telma J. Ferreira
, Luisa Quintino
, Pedro Santos Vilaca da Silva
, Carla C. C. R. de Carvalho

^*Corresponding author for this work

Department of Energy and Mechanical Engineering

Research output: Contribution to journal › Article › Scientific › peer-review

5 Citations (Web of Science)

Abstract

This paper describes improvements to the Nondestructive Testing (NDT) technique recently proposed, based on the use of bacterial cell suspensions to identify micro-and nano-surface defects. New bacterial strains were used with magnetic fields to improve bacteria mobility. Different materials and defect morphologies were tested, including nanoindentation defects, micro-powder injection moulding components and micro-laser welding. Nanoindentations with 0.6 mu m depth and 5.3 mu m side length were successfully detected. Bacterial cells allow identifying different topographic attributes of the surfaces, such as roughness. Cracks of about 0.5 mu m wide and 10 mu m depth in a reference test block Type 1 were successfully detected. (C) 2015 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	20-28
Number of pages	9
Journal	NDT & E International
Volume	78
Issue number	March
DOIs	https://doi.org/10.1016/j.ndteint.2015.11.002
Publication status	Published - Mar 2016
MoE publication type	A1 Journal article-refereed

Funding

The authors would like to acknowledge Fundacao para a Ciencia e a Tecnologia (FCT, I.P.) for funding the project "Defects Detection in Microfabrication With Bacterial Cells" - (MicroBac) (PTDC/EME-TME/118678/2010). TS and RM acknowledge PEst-OE/EME/UI0667/2014 and UID/EMS/00667/2013. C.C.C.R. de Carvalho acknowledges FCT for financial support under program "FCT Investigator 2013" (IF/01203/2013/CP1163/CT0002) and UID/BIO/04565/2013.

Keywords

Micro-surface defects
Bacterial cells
Magnetic field
Dye penetrant
STEEL

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10.1016/j.ndteint.2015.11.002

Cite this

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title = "Developments in micro-and nano-defects detection using bacterial cells",

abstract = "This paper describes improvements to the Nondestructive Testing (NDT) technique recently proposed, based on the use of bacterial cell suspensions to identify micro-and nano-surface defects. New bacterial strains were used with magnetic fields to improve bacteria mobility. Different materials and defect morphologies were tested, including nanoindentation defects, micro-powder injection moulding components and micro-laser welding. Nanoindentations with 0.6 mu m depth and 5.3 mu m side length were successfully detected. Bacterial cells allow identifying different topographic attributes of the surfaces, such as roughness. Cracks of about 0.5 mu m wide and 10 mu m depth in a reference test block Type 1 were successfully detected. (C) 2015 Elsevier Ltd. All rights reserved.",

keywords = "Micro-surface defects, Bacterial cells, Magnetic field, Dye penetrant, STEEL",

author = "Santos, \{Telmo G.\} and Miranda, \{R. M.\} and \{Teresa Vieira\}, M. and \{Rita Farinha\}, A. and Ferreira, \{Telma J.\} and Luisa Quintino and \{Santos Vilaca da Silva\}, Pedro and \{de Carvalho\}, \{Carla C. C. R.\}",

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doi = "10.1016/j.ndteint.2015.11.002",

language = "English",

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journal = "NDT \& E International",

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T1 - Developments in micro-and nano-defects detection using bacterial cells

AU - Santos, Telmo G.

AU - Miranda, R. M.

AU - Teresa Vieira, M.

AU - Rita Farinha, A.

AU - Ferreira, Telma J.

AU - Quintino, Luisa

AU - Santos Vilaca da Silva, Pedro

AU - de Carvalho, Carla C. C. R.

N1 - VK: T20309

PY - 2016/3

Y1 - 2016/3

N2 - This paper describes improvements to the Nondestructive Testing (NDT) technique recently proposed, based on the use of bacterial cell suspensions to identify micro-and nano-surface defects. New bacterial strains were used with magnetic fields to improve bacteria mobility. Different materials and defect morphologies were tested, including nanoindentation defects, micro-powder injection moulding components and micro-laser welding. Nanoindentations with 0.6 mu m depth and 5.3 mu m side length were successfully detected. Bacterial cells allow identifying different topographic attributes of the surfaces, such as roughness. Cracks of about 0.5 mu m wide and 10 mu m depth in a reference test block Type 1 were successfully detected. (C) 2015 Elsevier Ltd. All rights reserved.

AB - This paper describes improvements to the Nondestructive Testing (NDT) technique recently proposed, based on the use of bacterial cell suspensions to identify micro-and nano-surface defects. New bacterial strains were used with magnetic fields to improve bacteria mobility. Different materials and defect morphologies were tested, including nanoindentation defects, micro-powder injection moulding components and micro-laser welding. Nanoindentations with 0.6 mu m depth and 5.3 mu m side length were successfully detected. Bacterial cells allow identifying different topographic attributes of the surfaces, such as roughness. Cracks of about 0.5 mu m wide and 10 mu m depth in a reference test block Type 1 were successfully detected. (C) 2015 Elsevier Ltd. All rights reserved.

KW - Micro-surface defects

KW - Bacterial cells

KW - Magnetic field

KW - Dye penetrant

KW - STEEL

UR - http://www.sciencedirect.com/science/article/pii/S0963869515001164

U2 - 10.1016/j.ndteint.2015.11.002

DO - 10.1016/j.ndteint.2015.11.002

M3 - Article

SN - 0963-8695

VL - 78

SP - 20

EP - 28

JO - NDT & E International

JF - NDT & E International

IS - March

ER -

Developments in micro-and nano-defects detection using bacterial cells

Abstract

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Keywords

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