Document Details

Document Type : Article In Journal 
Document Title :
Influence of the relative humidity on the morphology of inkjet printed spots of IgG on a non-porous substrate
تأثير الرطوبة النسبية على الشكل الظاهرى لنقط مطبوعة بحبر على مواد غير مثقبة
 
Subject : Enviromental sciences 
Document Language : English 
Abstract : During the drying of inkjet printed droplets, the solute particles (IgG-Alexa-635 molecules) in the drop may distribute unevenly on the substrate, resulting in a “coffee-stain” spot morphology. In our study, we investigated the influence of the relative humidity on the distribution of inkjet printed fluorophore labeled IgG molecules on a polystyrene substrate. A theoretical model for an evaporating droplet was developed in order to predict the changes in the spot diameter, height and volume of a drying droplet. An experiment was performed where a sessile droplet was monitored using a CCD camera installed on a goniometer and good agreement was found between the experimental results and simulation data. We also compared the predicted morphology for an inkjet-printed microarray spot with the experimental results where IgG molecules were printed for various relative humidities. The spot morphology of the dried spots was analyzed by a confocal laser microscopy. At a lower relative humidity (i.e., <60%), a spot morphology resembling a coffee stain was prominent, whereas a more homogeneous distribution was observed when droplets were printed and dried at a higher relative humidity (􀀀70%). 
ISSN : 1473-7604 
Journal Name : The Royal Society of Chemistry 
Volume : 0 
Issue Number : 0 
Publishing Year : 1435 AH
2014 AD 
Article Type : Article 
Added Date : Monday, May 26, 2014 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Liyakat Hamid MujawarMujawar, Liyakat HamidResearcher Willem.Norde@wur.nl
J. G. M. KuertenKuerten, J. G. M.Researcher daniel.siregar@gmail.com
D. P. SiregarSiregar, D. P.Researcher daniel.siregar@gmail.com
Aart van AmerongenAmerongen, Aart vanResearcher Aart.vanamerongen@wur.nl
Willem NordeNorde, Willem Researcher Willem.Norde@wur.nl

Files

File NameTypeDescription
 36993.pdf pdfInfluence of the relative humidity on the morphology of inkjet printed spots of IgG on a non-porous substrate

Back To Researches Page