Journal: Sensors (Basel, Switzerland)
Article Title: Negative Charge-Carrying Glycans Attached to Exosomes as Novel Liquid Biopsy Marker
doi: 10.3390/s24041128
Figure Lengend Snippet: SPR sensorgram showing interaction of immobilised 22Rv1-derived exosomes with SNA and MAAII (both sialic acid-specific) lectins. Higher analytical sensitivities and lower limits of detection (LoDs) were achieved for carcinoma exosomes ( upper row ). SCK SPR sensorgrams showing interaction of SNA lectin with control ( lower left ) and carcinoma ( lower right ) exosomes. The analyte was injected into the system at concentrations of 18.75, 37.5, 75, 150 and 300 nM.
Article Snippet: To regenerate the biorecognition surface and remove the attached lectins, elution solutions from Vector Laboratories (Burlingame, CA, USA) were purchased, i.e., glycoprotein-eluting solution for mannose/glucose binding lectins (ES-1100-100); glycoprotein-eluting solution for galactose/GalNAc binding lectins (ES-2100-100); glycoprotein-eluting solution for fucose/arabinose binding lectins (ES3100-100); glycoprotein eluting solution for GlcNAc/Chitin binding lectins (ES-5100-100); glycoprotein-eluting solution for sialic acid binding lectins (ES-7100-100).
Techniques: Derivative Assay, Control, Injection