Real-time Raman based approach for identification of biofouling

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)

Abstract

tThis study describes a proof-of-concept for a compact real-time surface-enhanced Raman spectroscopy(SERS)-online sensing approach for detection of biofouling in drinking water membrane filtration. In thisstudy we created a custom-designed flow-cell that mimics a cross-flow membrane filtration system. Thisenables one to measure changes in surface-foulants, such as Brevundimonas dimiuta (BD) bacteria and ade-nine, under conditions that are similar to conventional membrane filtration systems. For measurementswe used a common portable Raman-spectrometer with a laboratory Raman-probe in combination with aspecially developed gold nanoparticle (Au NP) SERS-sensing area on filter-membranes. This allowed real-time detection of low concentrations of surface-foulants immediately after inoculation into an ultra-purewater reservoir under pressure-driven filtration conditions. We compared these online results with staticmeasurements from an offline, sample-taking approach, using a confocal Raman-laboratory-microscope.The developed Au NP SERS-sensing-area on the membranes proved to be stable over a long period ofsurface fouling investigations and to suppress the strong interfering Raman-signal originating from thecomposition layer of most filtration membranes.
Original languageEnglish
Pages (from-to)411-421
JournalSensors and Actuators B: Chemical
Volume230
DOIs
Publication statusPublished - 17 Feb 2016
MoE publication typeA1 Journal article-refereed

Fingerprint

Biofouling
membranes
Membranes
Raman spectroscopy
drinking
cross flow
fouling
inoculation
Fouling
Potable water
Drinking Water
Gold
bacteria
Spectrometers
low concentrations
Bacteria
Microscopes
microscopes
spectrometers
gold

Cite this

@article{ac113b90b5dd4873b90469a2356423b2,
title = "Real-time Raman based approach for identification of biofouling",
abstract = "tThis study describes a proof-of-concept for a compact real-time surface-enhanced Raman spectroscopy(SERS)-online sensing approach for detection of biofouling in drinking water membrane filtration. In thisstudy we created a custom-designed flow-cell that mimics a cross-flow membrane filtration system. Thisenables one to measure changes in surface-foulants, such as Brevundimonas dimiuta (BD) bacteria and ade-nine, under conditions that are similar to conventional membrane filtration systems. For measurementswe used a common portable Raman-spectrometer with a laboratory Raman-probe in combination with aspecially developed gold nanoparticle (Au NP) SERS-sensing area on filter-membranes. This allowed real-time detection of low concentrations of surface-foulants immediately after inoculation into an ultra-purewater reservoir under pressure-driven filtration conditions. We compared these online results with staticmeasurements from an offline, sample-taking approach, using a confocal Raman-laboratory-microscope.The developed Au NP SERS-sensing-area on the membranes proved to be stable over a long period ofsurface fouling investigations and to suppress the strong interfering Raman-signal originating from thecomposition layer of most filtration membranes.",
author = "Martin K{\"o}gler",
year = "2016",
month = "2",
day = "17",
doi = "10.1016/j.snb.2016.02.079",
language = "English",
volume = "230",
pages = "411--421",
journal = "Sensors and Actuators B: Chemical",
issn = "0925-4005",
publisher = "Elsevier",

}

Real-time Raman based approach for identification of biofouling. / Kögler, Martin.

In: Sensors and Actuators B: Chemical, Vol. 230, 17.02.2016, p. 411-421.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Real-time Raman based approach for identification of biofouling

AU - Kögler, Martin

PY - 2016/2/17

Y1 - 2016/2/17

N2 - tThis study describes a proof-of-concept for a compact real-time surface-enhanced Raman spectroscopy(SERS)-online sensing approach for detection of biofouling in drinking water membrane filtration. In thisstudy we created a custom-designed flow-cell that mimics a cross-flow membrane filtration system. Thisenables one to measure changes in surface-foulants, such as Brevundimonas dimiuta (BD) bacteria and ade-nine, under conditions that are similar to conventional membrane filtration systems. For measurementswe used a common portable Raman-spectrometer with a laboratory Raman-probe in combination with aspecially developed gold nanoparticle (Au NP) SERS-sensing area on filter-membranes. This allowed real-time detection of low concentrations of surface-foulants immediately after inoculation into an ultra-purewater reservoir under pressure-driven filtration conditions. We compared these online results with staticmeasurements from an offline, sample-taking approach, using a confocal Raman-laboratory-microscope.The developed Au NP SERS-sensing-area on the membranes proved to be stable over a long period ofsurface fouling investigations and to suppress the strong interfering Raman-signal originating from thecomposition layer of most filtration membranes.

AB - tThis study describes a proof-of-concept for a compact real-time surface-enhanced Raman spectroscopy(SERS)-online sensing approach for detection of biofouling in drinking water membrane filtration. In thisstudy we created a custom-designed flow-cell that mimics a cross-flow membrane filtration system. Thisenables one to measure changes in surface-foulants, such as Brevundimonas dimiuta (BD) bacteria and ade-nine, under conditions that are similar to conventional membrane filtration systems. For measurementswe used a common portable Raman-spectrometer with a laboratory Raman-probe in combination with aspecially developed gold nanoparticle (Au NP) SERS-sensing area on filter-membranes. This allowed real-time detection of low concentrations of surface-foulants immediately after inoculation into an ultra-purewater reservoir under pressure-driven filtration conditions. We compared these online results with staticmeasurements from an offline, sample-taking approach, using a confocal Raman-laboratory-microscope.The developed Au NP SERS-sensing-area on the membranes proved to be stable over a long period ofsurface fouling investigations and to suppress the strong interfering Raman-signal originating from thecomposition layer of most filtration membranes.

U2 - 10.1016/j.snb.2016.02.079

DO - 10.1016/j.snb.2016.02.079

M3 - Article

VL - 230

SP - 411

EP - 421

JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

SN - 0925-4005

ER -