Swelling and delamination of multi-electrode sensor arrays studied by variable-pressure scanning electron microscopy

P Lemoine, P Mailley, M Hyland, JAD McLaughlin, ET McAdams, JMCC Anderson, A Lynch, D Diamond, M Leader

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Multi-electrode sensor arrays are made of soft and wet materials not easily examined by most microscopic techniques. in this paper, we have demonstrated that low-vacuum scanning electron microscopy (LVSEM) and energy-dispersive X-ray analysis (EDX) are adequate for studying the hydration, swelling, and possible delamination of multi-electrode sensor arrays. We found that the LVSEM environment had no detectable effect on the morphology of Na+, K+, and Ca++ sensors, and EDX analysis indicated that all three membranes have similar compositions. However, once hydrated, the sensors exhibited different behaviors. The K+ and Ca++ sensors swelled more than the Na+ sensor did. This swelling is due principally to water sorption in the membrane. We believe that the larger thickness of the K+ and Ca++ membrane is partly responsible for the observed swelling effect. A simple Griffith analysis of the interface rupture confirms the experimental evidence that these thicker membranes also are more prone to delamination failure. (C) 2000 John Wiley & Sons, Inc.
LanguageEnglish
Pages313-321
JournalJournal of Biomedical Materials Research
Volume50
Issue number3
Publication statusPublished - Jun 2000

Fingerprint

Sensor arrays
Delamination
Swelling
Membranes
Scanning electron microscopy
Electrodes
Energy dispersive X ray analysis
Sensors
Vacuum
Hydration
Sorption
Water
Chemical analysis

Keywords

  • multi-electrode sensor array
  • low-vacuum SEM
  • swelling
  • delamination
  • peel stresses

Cite this

Lemoine, P ; Mailley, P ; Hyland, M ; McLaughlin, JAD ; McAdams, ET ; Anderson, JMCC ; Lynch, A ; Diamond, D ; Leader, M. / Swelling and delamination of multi-electrode sensor arrays studied by variable-pressure scanning electron microscopy. In: Journal of Biomedical Materials Research. 2000 ; Vol. 50, No. 3. pp. 313-321.
@article{9df21c2e94464d4b9fc36d543b32457d,
title = "Swelling and delamination of multi-electrode sensor arrays studied by variable-pressure scanning electron microscopy",
abstract = "Multi-electrode sensor arrays are made of soft and wet materials not easily examined by most microscopic techniques. in this paper, we have demonstrated that low-vacuum scanning electron microscopy (LVSEM) and energy-dispersive X-ray analysis (EDX) are adequate for studying the hydration, swelling, and possible delamination of multi-electrode sensor arrays. We found that the LVSEM environment had no detectable effect on the morphology of Na+, K+, and Ca++ sensors, and EDX analysis indicated that all three membranes have similar compositions. However, once hydrated, the sensors exhibited different behaviors. The K+ and Ca++ sensors swelled more than the Na+ sensor did. This swelling is due principally to water sorption in the membrane. We believe that the larger thickness of the K+ and Ca++ membrane is partly responsible for the observed swelling effect. A simple Griffith analysis of the interface rupture confirms the experimental evidence that these thicker membranes also are more prone to delamination failure. (C) 2000 John Wiley & Sons, Inc.",
keywords = "multi-electrode sensor array, low-vacuum SEM, swelling, delamination, peel stresses",
author = "P Lemoine and P Mailley and M Hyland and JAD McLaughlin and ET McAdams and JMCC Anderson and A Lynch and D Diamond and M Leader",
year = "2000",
month = "6",
language = "English",
volume = "50",
pages = "313--321",
journal = "Journal of Biomedical Materials Research",
issn = "0021-9304",
number = "3",

}

Lemoine, P, Mailley, P, Hyland, M, McLaughlin, JAD, McAdams, ET, Anderson, JMCC, Lynch, A, Diamond, D & Leader, M 2000, 'Swelling and delamination of multi-electrode sensor arrays studied by variable-pressure scanning electron microscopy', Journal of Biomedical Materials Research, vol. 50, no. 3, pp. 313-321.

Swelling and delamination of multi-electrode sensor arrays studied by variable-pressure scanning electron microscopy. / Lemoine, P; Mailley, P; Hyland, M; McLaughlin, JAD; McAdams, ET; Anderson, JMCC; Lynch, A; Diamond, D; Leader, M.

In: Journal of Biomedical Materials Research, Vol. 50, No. 3, 06.2000, p. 313-321.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Swelling and delamination of multi-electrode sensor arrays studied by variable-pressure scanning electron microscopy

AU - Lemoine, P

AU - Mailley, P

AU - Hyland, M

AU - McLaughlin, JAD

AU - McAdams, ET

AU - Anderson, JMCC

AU - Lynch, A

AU - Diamond, D

AU - Leader, M

PY - 2000/6

Y1 - 2000/6

N2 - Multi-electrode sensor arrays are made of soft and wet materials not easily examined by most microscopic techniques. in this paper, we have demonstrated that low-vacuum scanning electron microscopy (LVSEM) and energy-dispersive X-ray analysis (EDX) are adequate for studying the hydration, swelling, and possible delamination of multi-electrode sensor arrays. We found that the LVSEM environment had no detectable effect on the morphology of Na+, K+, and Ca++ sensors, and EDX analysis indicated that all three membranes have similar compositions. However, once hydrated, the sensors exhibited different behaviors. The K+ and Ca++ sensors swelled more than the Na+ sensor did. This swelling is due principally to water sorption in the membrane. We believe that the larger thickness of the K+ and Ca++ membrane is partly responsible for the observed swelling effect. A simple Griffith analysis of the interface rupture confirms the experimental evidence that these thicker membranes also are more prone to delamination failure. (C) 2000 John Wiley & Sons, Inc.

AB - Multi-electrode sensor arrays are made of soft and wet materials not easily examined by most microscopic techniques. in this paper, we have demonstrated that low-vacuum scanning electron microscopy (LVSEM) and energy-dispersive X-ray analysis (EDX) are adequate for studying the hydration, swelling, and possible delamination of multi-electrode sensor arrays. We found that the LVSEM environment had no detectable effect on the morphology of Na+, K+, and Ca++ sensors, and EDX analysis indicated that all three membranes have similar compositions. However, once hydrated, the sensors exhibited different behaviors. The K+ and Ca++ sensors swelled more than the Na+ sensor did. This swelling is due principally to water sorption in the membrane. We believe that the larger thickness of the K+ and Ca++ membrane is partly responsible for the observed swelling effect. A simple Griffith analysis of the interface rupture confirms the experimental evidence that these thicker membranes also are more prone to delamination failure. (C) 2000 John Wiley & Sons, Inc.

KW - multi-electrode sensor array

KW - low-vacuum SEM

KW - swelling

KW - delamination

KW - peel stresses

M3 - Article

VL - 50

SP - 313

EP - 321

JO - Journal of Biomedical Materials Research

T2 - Journal of Biomedical Materials Research

JF - Journal of Biomedical Materials Research

SN - 0021-9304

IS - 3

ER -