Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell Detection

Hydrogels are of keen interest for a wide range of medical and biotechnological applications including as 3D substrate structures for the detection of proteins, nucleic acids, and cells. Hydrogel parameters such as polymer wt % and crosslink density are typically altered for a specific application;...

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Main Authors: Lisa Christadore, Mark W. Grinstaff, Scott E. Schaus
Format: Article
Language:English
Published: MDPI AG 2018-04-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/23/4/936
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author Lisa Christadore
Mark W. Grinstaff
Scott E. Schaus
author_facet Lisa Christadore
Mark W. Grinstaff
Scott E. Schaus
author_sort Lisa Christadore
collection DOAJ
description Hydrogels are of keen interest for a wide range of medical and biotechnological applications including as 3D substrate structures for the detection of proteins, nucleic acids, and cells. Hydrogel parameters such as polymer wt % and crosslink density are typically altered for a specific application; now, fluorescence can be incorporated into such criteria by specific macromonomer selection. Intrinsic fluorescence was observed at λmax 445 nm from hydrogels polymerized from lysine and aldehyde- terminated poly(ethylene glycol) macromonomers upon excitation with visible light. The hydrogel’s photochemical properties are consistent with formation of a nitrone functionality. Printed hydrogels of 150 μm were used to detect individual cell adherence via a decreased in fluorescence. The use of such intrinsically fluorescent hydrogels as a platform for cell sorting and detection expands the current repertoire of tools available.
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spelling doaj.art-b9b2c12178564892ac7c5ef21f0733172022-12-22T02:56:15ZengMDPI AGMolecules1420-30492018-04-0123493610.3390/molecules23040936molecules23040936Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell DetectionLisa Christadore0Mark W. Grinstaff1Scott E. Schaus2Department of Chemistry, Boston University, Boston, MA 02215, USADepartment of Chemistry, Boston University, Boston, MA 02215, USADepartment of Chemistry, Boston University, Boston, MA 02215, USAHydrogels are of keen interest for a wide range of medical and biotechnological applications including as 3D substrate structures for the detection of proteins, nucleic acids, and cells. Hydrogel parameters such as polymer wt % and crosslink density are typically altered for a specific application; now, fluorescence can be incorporated into such criteria by specific macromonomer selection. Intrinsic fluorescence was observed at λmax 445 nm from hydrogels polymerized from lysine and aldehyde- terminated poly(ethylene glycol) macromonomers upon excitation with visible light. The hydrogel’s photochemical properties are consistent with formation of a nitrone functionality. Printed hydrogels of 150 μm were used to detect individual cell adherence via a decreased in fluorescence. The use of such intrinsically fluorescent hydrogels as a platform for cell sorting and detection expands the current repertoire of tools available.http://www.mdpi.com/1420-3049/23/4/936dendrimerhydrogelscreeningcrosslinkingfluorescence
spellingShingle Lisa Christadore
Mark W. Grinstaff
Scott E. Schaus
Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell Detection
Molecules
dendrimer
hydrogel
screening
crosslinking
fluorescence
title Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell Detection
title_full Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell Detection
title_fullStr Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell Detection
title_full_unstemmed Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell Detection
title_short Fluorescent Dendritic Micro-Hydrogels: Synthesis, Analysis and Use in Single-Cell Detection
title_sort fluorescent dendritic micro hydrogels synthesis analysis and use in single cell detection
topic dendrimer
hydrogel
screening
crosslinking
fluorescence
url http://www.mdpi.com/1420-3049/23/4/936
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AT scotteschaus fluorescentdendriticmicrohydrogelssynthesisanalysisanduseinsinglecelldetection