scholarly journals Development of an automated on-chip bead-based ELISA platform

2015 ◽  
Vol 7 (19) ◽  
pp. 8472-8477 ◽  
Author(s):  
Jennifer Campbell ◽  
Nira R. Pollock ◽  
Andre Sharon ◽  
Alexis F. Sauer-Budge

We present a lab-on-a-chip and associated instrument for heterogeneous enzyme-linked immunosorbent assay (ELISA)-based detection of proteins from liquid samples.

2014 ◽  
Vol 8 (6) ◽  
pp. 064101 ◽  
Author(s):  
Arnold Chen ◽  
Royal Wang ◽  
Candace R. S. Bever ◽  
Siyuan Xing ◽  
Bruce D. Hammock ◽  
...  

Lab on a Chip ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 3305-3315 ◽  
Author(s):  
Yi-Sin Chen ◽  
Yu-Dong Ma ◽  
Chihchen Chen ◽  
Shu-Chu Shiesh ◽  
Gwo-Bin Lee

An integrated microfluidic system was developed for extracellular vesicle (EV) enrichment and quantification by using anti-CD63-coated magnetic beads and an on-chip enzyme-linked immunosorbent assay in human whole blood.


Lab on a Chip ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 2438-2446 ◽  
Author(s):  
Xia Ouyang ◽  
Tong Liu ◽  
Yangxi Zhang ◽  
Jijun He ◽  
Zijian He ◽  
...  

Polymer whispering-gallery-mode microlaser sensors are optically 3D μ-printed and then integrated within a microfluidic chip for ultrasensitive detection of biomarkers.


1989 ◽  
Vol 62 (04) ◽  
pp. 1078-1082 ◽  
Author(s):  
Burt Adelman ◽  
Patricia Ouynn

SummaryThis report describes the binding of plasminogen to fibrinogen adsorbed onto polystyrene wells. Binding was determined by enzyme linked immunosorbent assay. Both glu- and lys-plasminogen bound to immobilized fibrinogen in a dose-dependent fashion. However, more lys- than glu-plasminogen bound when equal concentrations of either were added to immobilized fibrinogen. Plasminogen binding was inhibited by epsilon aminocaproic acid indicating that binding was mediated via lysine-binding regions of plasminogen. Soluble fibrinogen added in excess of immobilized fibrinogen did not compete for plasminogen binding but fibrinogen fragments produced by plasmin digestion of fibrinogen did. Treatment of immobilized fibrinogen with thrombin caused a small but significant (p <0.01) increase in plasminogen binding. These studies demonstrate that immobilized fibrinogen binds both glu- and lys-plasminogen and that binding is mediated via lysine-binding regions. These interactions may facilitate plasminogen binding to fibrinogen adsorbed on to surfaces and to cells such as platelets which bind fibrinogen.


1995 ◽  
Vol 74 (04) ◽  
pp. 1045-1049 ◽  
Author(s):  
P Butthep ◽  
A Bunyaratvej ◽  
Y Funahara ◽  
H Kitaguchi ◽  
S Fucharoen ◽  
...  

SummaryAn increased level of plasma thrombomodulin (TM) in α- and β- thalassaemia was demonstrated using an enzyme-linked immunosorbent assay (ELISA). Nonsplenectomized patients with β-thalassaemia/ haemoglobin E (BE) had higher levels of TM than splenectomized cases (BE-S). Patients with leg ulcers (BE-LU) were found to have the highest increase in TM level. Appearance of larger platelets in all types of thalassaemic blood was observed indicating an increase in the number of younger platelets. These data indicate that injury of vascular endothelial cells is present in thalassaemic patients.


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