Low-temperature quartz wafer bonding using hyperbranched polyurethane oligomers
MetadataShow full item record
© 2014, Springer-Verlag Berlin Heidelberg.In this paper, we introduce a new bonding technology for the assembly of micro- structured glass substrates for miniaturized chemical analysis. The protocol features a facile polymer chemistry method processing at lower temperatures (<100 °C). The method consisted of a proper cleaning of the two glass surfaces, followed by hydroxylization, aminosilylation and hyperbranched polyurethane oligomers (HPU) bridging on quartz wafer surfaces as the interlayer. Strong bonding with a shear force 4.5 MPa has been achieved. The present procedure avoids the possible micro-channel blockage and contamination by using conventional adhesives. Moreover, the microfluidic chips bonded by the above procedures are highly transparent therefore allowing for biochemical compositions to be easily characterized by UV–vis or IR spectroscopy.
Showing items related by title, author, creator and subject.
Coll, Richard K. (1999)The research reported in this thesis comprised a cross-age inquiry of learners' mental models for chemical bonding. Learners were chosen purposefully from three academic levels-senior secondary school (Year-13, age range ...
Formation and characteristics of glucose oligomers during the hydrolysis of cellulose in hot-compressed waterYu, Yun (2009)Energy production from fossil fuels results in significant carbon dioxide emission, which is a key contributor to global warming and the problems related to climate change. Biomass is recognized as an important part of ...
Predictors of postnatal mother-infant bonding: the role of antenatal bonding, maternal substance use and mental healthRossen, L.; Hutchinson, D.; Wilson, J.; Burns, L.; Olsson, C.A.; Allsop, Steve; J Elliott, E.; Jacobs, S.; Macdonald, J.; Mattick, R. (2016)The emotional bond that a mother feels towards her baby is critical to social, emotional and cognitive development. Maternal health and wellbeing through pregnancy and antenatal bonding also play a key role in determining ...