Detection of inflammation in vivo by surface-enhanced raman scattering provides higher sensitivity than conventional fluorescence imaging

McQueenie, R., Stevenson, R., Benson, R. , MacRitchie, N., McInnes, I. , Maffia, P. , Faulds, K., Graham, D., Brewer, J. and Garside, P. (2012) Detection of inflammation in vivo by surface-enhanced raman scattering provides higher sensitivity than conventional fluorescence imaging. Analytical Chemistry, 84(14), pp. 5968-5975. (doi:10.1021/ac3006445)

McQueenie, R., Stevenson, R., Benson, R. , MacRitchie, N., McInnes, I. , Maffia, P. , Faulds, K., Graham, D., Brewer, J. and Garside, P. (2012) Detection of inflammation in vivo by surface-enhanced raman scattering provides higher sensitivity than conventional fluorescence imaging. Analytical Chemistry, 84(14), pp. 5968-5975. (doi:10.1021/ac3006445)

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Abstract

The detection of inflammatory changes is a key aim for the early diagnosis and treatment of several autoimmune, infectious, and metastatic diseases. While surface-enhanced Raman scattering (SERS) has the capability to provide noninvasive, in vivo imaging at sufficient depth to achieve this goal, this approach has not been exploited in the study of inflammation. SERS-active nanoparticles were coded with a unique Raman signal that was protected under a wide range of conditions and stimuli. To detect early-stage inflammation, gold nanoparticle clusters containing Raman-active molecules were conjugated to intercellular adhesion molecule 1- (ICAM-1-) specific monoclonal antibodies. SERS allowed noninvasive measurement of ICAM-1 expression in vivo with twice the sensitivity of two-photon fluorescence. This is the first time SERS has been used for in vivo detection of inflammation and is a major advance in the ever-growing toolkit of approaches for use in noninvasive, next-generation in vivo imagingThe detection of inflammatory changes is a key aim for the early diagnosis and treatment of several autoimmune, infectious, and metastatic diseases. While surface-enhanced Raman scattering (SERS) has the capability to provide noninvasive, in vivo imaging at sufficient depth to achieve this goal, this approach has not been exploited in the study of inflammation. SERS-active nanoparticles were coded with a unique Raman signal that was protected under a wide range of conditions and stimuli. To detect early-stage inflammation, gold nanoparticle clusters containing Raman-active molecules were conjugated to intercellular adhesion molecule 1- (ICAM-1-) specific monoclonal antibodies. SERS allowed noninvasive measurement of ICAM-1 expression in vivo with twice the sensitivity of two-photon fluorescence. This is the first time SERS has been used for in vivo detection of inflammation and is a major advance in the ever-growing toolkit of approaches for use in noninvasive, next-generation in vivo imaging.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McInnes, Professor Iain and Maffia, Dr Pasquale and Benson, Dr Robert and Garside, Professor Paul and Brewer, Professor James and MacRitchie, Dr Neil and McQueenie, Dr Ross
Authors: McQueenie, R., Stevenson, R., Benson, R., MacRitchie, N., McInnes, I., Maffia, P., Faulds, K., Graham, D., Brewer, J., and Garside, P.
College/School:College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > General Practice and Primary Care
College of Medical Veterinary and Life Sciences > Institute of Infection Immunity and Inflammation
Journal Name:Analytical Chemistry
Journal Abbr.:Anal. Chem.
ISSN:0003-2700
ISSN (Online):1520-6882
Published Online:15 June 2012

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