Graphene Oxide Nanosheets Modified with Single-Domain Antibodies for Rapid and Efficient Capture of Cells

Guan Yu Chen, Zeyang Li, Christopher S. Theile, Neelkanth M. Bardhan, Priyank V. Kumar, Joao N. Duarte, Takeshi Maruyama, Ali Rashidfarrokh, Angela M. Belcher, Hidde L. Ploegh*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Peripheral blood can provide valuable information on an individual's immune status. Cell-based assays typically target leukocytes and their products. Characterization of leukocytes from whole blood requires their separation from the far more numerous red blood cells.1 Current methods to classify leukocytes, such as recovery on antibody-coated beads or fluorescence-activated cell sorting require long sample preparation times and relatively large sample volumes.2 A simple method that enables the characterization of cells from a small peripheral whole blood sample could overcome limitations of current analytical techniques. We describe the development of a simple graphene oxide surface coated with single-domain antibody fragments. This format allows quick and efficient capture of distinct WBC subpopulations from small samples (∼30 μL) of whole blood in a geometry that does not require any specialized equipment such as cell sorters or microfluidic devices.

Original languageEnglish
Pages (from-to)17178-17183
Number of pages6
JournalChemistry - A European Journal
Issue number48
Publication statusPublished - 2015 Nov 23
Externally publishedYes


  • blood
  • cell detection
  • graphene oxide
  • single domain antibody
  • sortase

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry


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