Matrix-Prepared Surfaces

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Matrix-Prepared Surfaces

Overview

ProteinChip Array Selection Guide
General Description Array Surface Chemistry (active spots) Applications
Strong Anion Exchange
Capture of molecules that have negative surface charges Q10 Cationic, quaternary ammonium groups that interact with the negative charges on the surface of target proteins; for example, aspartic or glutamic acid
  • Selective analysis of proteins with low pls
  • Biomarker discovery
Weak Cation Exchange
Capture of molecules that have positive surface charges CM10 Weak anionic carboxylate groups that interact with the positive charges on the surface of the analyte; for example, lysine, arginine, or histidine
  • Selective analysis of proteins with high pls
  • Biomarker discovery
IMAC
Capture of molecules that bind polyvalent metal ions, such as nickel, copper, zinc, iron, and gallium IMAC30 NTA groups that chelate metal ions. Proteins applied to the array surface may bind to the chelated metal ion through histidine, tryptophan, cysteine, and phosphorylated amino acid residues
  • Analysis of metal-binding, phosphorylated, or polyhistidine (His)-tagged proteins
  • Biomarker discovery
Hydrophobic/Reverse-Phase
Capture of large proteins through hydrophobic or reverse-phase interactions H50 Methylene chains that closely mimic the characteristics of C6 to C12 alkyl chromatography media
  • Protein profiling
  • Purity determination
  • Rapid protein analysis
  • Calibration with proteins of known MW
  • Biomarker discovery
Capture of smaller proteins and peptides through hydrophobic and reverse-phase interactions H4* Active spots contain chains of 16 methylene groups that bind proteins through reverse-phase chemistry. Binds proteins abundant in alanine, valine, leucine, isoleucine, phenylalanine, tryptophan, or tyrosine
  • Purity determination
  • Rapid protein/peptide analysis
  • Biomarker discovery
Analysis of peptides resulting from tryptic digestion of proteins SEND ID Chains of 18 methylene groups (C18) that bind peptides through reverse-phase chemistry; matrix is integrated into the array surface
  • Peptide mass fingerprinting
Normal Phase
General protein binding surface; recommended for hydrophilic proteins NP20 Silicon dioxide, which allows proteins to bind via serine, threonine, or lysine residues
  • Quick protein analysis
  • Purity determination
  • Verification of the presence or absence of a molecule
  • Calibration with peptides or proteins of known MW
Preactivated Surface
Covalent immobilization of biomolecules for subsequent specific capture of proteins from complex samples PS10 Reactive acyl imidazole moieties
  • Analysis of antibody-antigen, receptor-ligand, protein-protein interactions
  PS20 Epoxy groups  
  RS100 Reactive acyl imidazole moieties on a hydrogel backbone  
Nonreactive Surface
  Au Gold provides a nonreactive surface for general protein analysis (limited reusability)
  • Quick protein analysis
  • Calibration with peptides or proteins of known MW

*Array lacks the hydrophobic coating needed for sample containment; a hydrophobic PAP pen can be used to manually create the barrier.

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The ProteinChip SEND (surface-enhanced neat desorption) ID array incorporates energy absorbing matrix into the array surface to reduce the chemical noise in spectra often caused by application of a separate matrix layer.

The ProteinChip SEND ID array also incorporates a hydrophobic interaction functional group, allowing both on-chip cleanup of peptide samples as well as neat application of samples. With this array, the ProteinChip SELDI system can be used to analyze lower molecular weight species with fewer interfering peaks, significantly improving sensitivity.

Refer to the ProteinChip Array Selection Guide for more information on selecting arrays with the appropriate surface chemistries.

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(Discontinued) ProteinChip SEND ID Arrays

C5730081
Pkg of 12, A–H format, reverse-phase arrays for use with the ProteinChip SELDI system

This product is no longer available. Please contact technical support for more information on replacement product.
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(Discontinued) ProteinChip Cassettes

C5030013
Pkg of 5, each holds 12 ProteinChip arrays for use with the ProteinChip SELDI system, Enterprise Edition and cassette-compatible bioprocessor

This product is no longer available. Please contact technical support for more information on replacement product.
(Discontinued) ProteinChip Cassette–Compatible Bioprocessor Reservoirs

C5030012
Pkg of 5, disposable reservoirs for use with ProteinChip cassette–compatible bioprocessor, for use with ProteinChip SELDI system

This product is no longer available. Please contact technical support for more information on replacement product.
(Discontinued) ProteinChip Cassette–Compatible Bioprocessor

C5030011
ProteinChip bioprocessor, ProteinChip array forceps, cassette hold-down frame, and 12 blank ProteinChip arrays, for use with ProteinChip SELDI system

This product is no longer available. Please contact technical support for more information on replacement product.
(Discontinued) ProteinChip Array Reaction Tubes

C2010001
Pkg of 50, tubes for use with ProteinChip SELDI system

This product is no longer available. Please contact technical support for more information on replacement product.
(Discontinued) ProteinChip Array Forceps

C2010002
1 pair, for use with ProteinChip SELDI system

This product is no longer available. Please contact technical support for more information on replacement product.
Number Description Options
5524 ProteinChip Arrays and Reagents Product Information Sheet, Rev C Click to download
5530 ProteinChip SELDI System Brochure, Rev A Click to download
10008249 Instruction Manual, ProteinChip SEND ID Array, Rev D Click to download

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