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

Telmo G. Santos; R. M. Miranda; Maria Teresa Freire Vieira; A. Rita Farinha; Telma J. Ferreira; Luísa Quintino; Pedro Vilaça; 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, Maria Teresa Freire Vieira, A. Rita Farinha, Telma J. Ferreira, Luísa Quintino, Pedro Vilaça, Carla C C R De Carvalho

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

3 Citations (Scopus)

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 μm depth and 5.3 μm side length were successfully detected. Bacterial cells allow identifying different topographic attributes of the surfaces, such as roughness. Cracks of about 0.5 μm wide and 10 μm depth in a reference test block Type 1 were successfully detected.

Original language	English
Pages (from-to)	20-28
Number of pages	9
Journal	Ndt & E International
Volume	78
DOIs	https://doi.org/10.1016/j.ndteint.2015.11.002
Publication status	Published - Mar 2016

Keywords

STEEL

Access to Document

10.1016/j.ndteint.2015.11.002Licence: CC BY-NC-ND

Cite this

@article{a851945015e7420ca69f2d428bb6ecf3,

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 μm depth and 5.3 μm side length were successfully detected. Bacterial cells allow identifying different topographic attributes of the surfaces, such as roughness. Cracks of about 0.5 μm wide and 10 μm depth in a reference test block Type 1 were successfully detected.",

keywords = "STEEL",

author = "Santos, {Telmo G.} and Miranda, {R. M.} and Vieira, {Maria Teresa Freire} and Farinha, {A. Rita} and Ferreira, {Telma J.} and Lu{\'i}sa Quintino and Pedro Vila{\c c}a and {De Carvalho}, {Carla C C R}",

note = "Sem PDF. Fundacao para a Ciencia e a Tecnologia (FCT, I.P.) (PTDC/EME-TME/118678/2010) FCT (IF/01203/2013/CP1163/CT0002) (UID/BIO/04565/2013)",

year = "2016",

month = mar,

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

language = "English",

volume = "78",

pages = "20--28",

journal = "Ndt & E International",

issn = "0963-8695",

publisher = "Elsevier Science B.V., Amsterdam.",

}

TY - JOUR

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

AU - Santos, Telmo G.

AU - Miranda, R. M.

AU - Vieira, Maria Teresa Freire

AU - Farinha, A. Rita

AU - Ferreira, Telma J.

AU - Quintino, Luísa

AU - Vilaça, Pedro

AU - De Carvalho, Carla C C R

N1 - Sem PDF. Fundacao para a Ciencia e a Tecnologia (FCT, I.P.) (PTDC/EME-TME/118678/2010) FCT (IF/01203/2013/CP1163/CT0002) (UID/BIO/04565/2013)

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 μm depth and 5.3 μm side length were successfully detected. Bacterial cells allow identifying different topographic attributes of the surfaces, such as roughness. Cracks of about 0.5 μm wide and 10 μm depth in a reference test block Type 1 were successfully detected.

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 μm depth and 5.3 μm side length were successfully detected. Bacterial cells allow identifying different topographic attributes of the surfaces, such as roughness. Cracks of about 0.5 μm wide and 10 μm depth in a reference test block Type 1 were successfully detected.

KW - STEEL

UR - http://www.scopus.com/inward/record.url?scp=84948421620&partnerID=8YFLogxK

U2 - 10.1016/j.ndteint.2015.11.002

DO - 10.1016/j.ndteint.2015.11.002

M3 - Article

AN - SCOPUS:84948421620

SN - 0963-8695

VL - 78

SP - 20

EP - 28

JO - Ndt & E International

JF - Ndt & E International

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this