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Graphene Oxide Nanosheets Modified with Single‐Domain Antibodies for Rapid and Efficient Capture of Cells
Author(s) -
Chen GuanYu,
Li Zeyang,
Theile Christopher S.,
Bardhan Neelkanth M.,
Kumar Priyank V.,
Duarte Joao N.,
Maruyama Takeshi,
Rashidfarrokh Ali,
Belcher Angela M.,
Ploegh Hidde L.
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201503057
Subject(s) - cell sorting , graphene , microfluidics , whole blood , characterization (materials science) , antibody , oxide , materials science , peripheral blood , nanotechnology , single cell analysis , cell , immune system , biomedical engineering , chemistry , immunology , biology , medicine , biochemistry , metallurgy
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.