Article (Scientific journals)
Plasmonic microcarriers for sensing and cell expansion
Stoffels, Charlotte; Grysan, Patrick; Sion, Caroline et al.
2023In Sensors and Actuators Reports, 6, p. 100173
Peer reviewed
 

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Keywords :
Biosensor; Cell culture; Gold nanoparticle; Hydrogel; Microcarrier; Nanoparticles; Plasmonics; Self-assembly; Cell expansion; Gold Nanoparticles; Growth support; High-throughput; Microcarriers; Plate configuration; Surface area; Well plates; Electronic, Optical and Magnetic Materials; Computer Science (miscellaneous); Atomic and Molecular Physics, and Optics; Instrumentation; Electrical and Electronic Engineering
Abstract :
[en] Microcarriers (MCs, typically 50–200 µm) are promising growth supports for high-throughput cell expansion, with capability to overcome the limitations of surface area availability and nutrient access encountered by cell culture in 2D well plate configurations. Equipping MCs with in-built capability to sense molecular biomarkers is a key step forward to meet the emerging demands of personalized cell-based therapies. However, integrating sensing functionality into MCs is non-trivial due to fabrication limitations imposed by their large size, curved surfaces, and their suspension in fluid. If achieved, the sensor-integrated MCs should face further concerns of reduced stability and cytocompatibility during cell-culture. Here we demonstrate plasmonic microcarriers (PMCs) that integrate spectroscopic sensing and cell expansion functions through the deposition of gold nanoparticle (AuNP) assemblies on dextran-based MCs. Hydrogel characteristics of the dextran microcarriers was found to profoundly enhance the binding density and kinetics of AuNPs, as seen by attainment of saturated densities in few seconds, and at nanoparticle concentrations only twice that of the surface sites. The approaches to prepare PMCs are distinguished by simple, scalable routes, without need for sophisticated lab infrastructure. The capability of PMCs to act as spectroscopic transducers was demonstrated by surface-enhanced spectroscopic (SERS) detection of a model molecular probe. The growth, proliferation and migration of human mesenchymal stem cells on the PMCs was found to be comparable to that of the uncoated MCs. The results pave the way to smart, multifunctional cell growth supports to interrogate, control and report cell behavior during culture.
Disciplines :
Chemistry
Author, co-author :
Stoffels, Charlotte  ;  Université de Liège - ULiège ; Materials Research and Technology (MRT), Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg
Grysan, Patrick;  Materials Research and Technology (MRT), Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg
Sion, Caroline;  Université de Lorraine, CNRS, LRGP, Nancy, France
Rastogi, Rishabh ;  Materials Research and Technology (MRT), Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg ; Laboratory Light, nanomaterials & nanotechnologies – L2n, the University of Technology of Troyes & CNRS ERL 7004, Troyes, France
Beggiato, Matteo ;  Materials Research and Technology (MRT), Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg ; Doctoral School in Science and Engineering (DSSE), Faculty of Science, Technology and Medicine (FSTM), University of Luxembourg, Belval, Luxembourg
Olmos, Eric;  Université de Lorraine, CNRS, LRGP, Nancy, France
Krishnamoorthy, Sivashankar ;  Materials Research and Technology (MRT), Luxembourg Institute of Science and Technology (LIST), Belvaux, Luxembourg
Language :
English
Title :
Plasmonic microcarriers for sensing and cell expansion
Publication date :
2023
Journal title :
Sensors and Actuators Reports
ISSN :
2666-0539
eISSN :
2666-0539
Publisher :
Elsevier B.V.
Volume :
6
Pages :
100173
Peer reviewed :
Peer reviewed
Funders :
FNR - Fonds National de la Recherche [LU]
Funding text :
Authors thank Esther Lentzen for NanoSIMS measurements and Asmaa El Moul for Ultramicrotomy. Funding from INTERREG Grand Region V via IMPROVE-STEM project, and Fonds National de la Recherche (FNR) Luxembourg via MASSENA and PLASENS ( C15/MS/10459961 ) projects is gratefully acknowledged.
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