0000000000414130

AUTHOR

Muthukumaran Venkatachalapathy

0000-0003-1782-4121

showing 2 related works from this author

Configurable low-cost plotter device for fabrication of multi-color sub-cellular scale microarrays.

2014

We report on the construction and operation of a low-cost plotter for fabrication of microarrays for multiplexed single-cell analyses. The printing head consists of polymeric pyramidal pens mounted on a rotation stage installed on an aluminium frame. This construction enables printing of microarrays onto glass substrates mounted on a tilt stage, controlled by a Lab-View operated user interface. The plotter can be assembled by typical academic workshops from components of less than 15 000 Euro. The functionality of the instrument is demonstrated by printing DNA microarrays on the area of 0.5 squared centimeters using up to three different oligonucleotides. Typical feature sizes are 5 μm diam…

FabricationMaterials scienceScale (ratio)NanotechnologyMultiplexingBiomaterialsUser-Computer InterfacePlotterHumansGeneral Materials ScienceBiochipOligonucleotide Array Sequence AnalysisEGF ReceptorsEpidermal Growth FactorOligonucleotideDNA-directed protein immobilization EGF receptors device automation multiplexed patterns polymer pen lithographyGeneral ChemistryMicrofluidic Analytical TechniquesErbB ReceptorsTissue Array AnalysisCosts and Cost AnalysisMCF-7 CellsPrintingDNA microarraySingle-Cell AnalysisBiotechnologySmall (Weinheim an der Bergstrasse, Germany)
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A Protein-Interaction Array Inside a Living Cell

2013

Cell phenotype is determined by protein network states that are maintained by the dynamics of multiple protein interactions.1 Fluorescence microscopy approaches that measure protein interactions in individual cells, such as by Forster resonant energy transfer (FRET), are limited by the spectral separation of fluorophores and thus are most suitable to analyze a single protein interaction in a given cell. However, analysis of correlations between multiple protein interactions is required to uncover the interdependence of protein reactions in dynamic signal networks. Available protein-array technologies enable the parallel analysis of interacting proteins from cell extracts, however, they can …

ImmunoprecipitationRecombinant Fusion Proteinsprotein-protein interactionsImmobilized Nucleic AcidsProtein Array AnalysisreceptorsDNA Single-StrandedCatalysisProtein–protein interactionReceptors G-Protein-CoupledBimolecular fluorescence complementationProtein Array AnalysisChlorocebus aethiopsFluorescence microscopeFluorescence Resonance Energy TransferAnimalsProtein Interaction MapsProtein kinase Amultiplexed assayChemistryProteinsProtein-protein interactions Dip Pen Nanolithography Protein KinaseDNA directed immobilizationGeneral MedicineGeneral ChemistryCommunicationssurface-immobilizationKineticsLuminescent ProteinsFörster resonance energy transferBiochemistryMicroscopy FluorescenceCOS CellsBiophysicsSignal transductionAntibodies Immobilizedsignal transduction
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