Quartz crystal microbalance bioaffinity sensor for biotin based on mixed self-assembled monolayers and metastable molecular complex receptor

2006 ◽  
Vol 21 (8) ◽  
pp. 1545-1552 ◽  
Author(s):  
Ting Deng ◽  
Ji-Shan Li ◽  
Shuang-Yan Huan ◽  
Hai-Feng Yang ◽  
Hua Wang ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Molecular Complex ◽  
Quartz Crystal ◽  
Self Assembled Monolayers ◽  
Complex Receptor ◽  
Assembled Monolayers ◽  
Self Assembled

“Vanishing mass” in the Sauerbrey world: quartz crystal microbalance study of self-assembled monolayers based on a tripod-branched structure with tuneable molecular flexibility

The Analyst ◽  
2020 ◽  
Vol 145 (2) ◽  
pp. 656-666 ◽  
Author(s):  
Sergii Kravchenko ◽  
Boris Snopok
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Self Assembled Monolayers ◽  
Sensitive Layer ◽  
Spatial Organisation ◽  
Molecular Flexibility ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Branched Structure

Complex loadings that appear on a surface with flexible spatial organisation can reveal anti-Sauerbrey behaviour due to their variable interfacial architecture even for an ultrathin monomolecular sensitive layer.

MOLECULAR RECOGNITION OF NUCLEOBASES ATTACHED TO SELF-ASSEMBLED MONOLAYERS DETECTED BY CHEMICAL FORCE MICROSCOPY AND QUARTZ CRYSTAL MICROBALANCE

2002 ◽  
Vol 01 (05n06) ◽  
pp. 667-671 ◽  
Author(s):  
HIROSHI SUNAMI ◽  
KUNIHARU IJIRO ◽  
MASATSUGU SHIMOMURA
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Adhesion Force ◽  
Self Assembled Monolayers ◽  
Adhesion Forces ◽  
Force Microscopy ◽  
Chemical Force Microscopy ◽  
Assembled Monolayers ◽  
Self Assembled ◽  
Chemical Force

In order to develop a new DNA sequencing method by using chemical force microscopy (CFM), we have investigated the interaction of the hydrogen bonding between surfaces of nucleobase self-assembled monolayers (SAMs) and AFM-tips modified with the nucleobases. The two different adhesion forces, the jump-in force and pull-off force, between the AFM-tip modified with cytosine-SAM and the surfaces of four kinds of nucleobase SAMs were measured in water (20°C) by CFM. The adsorption of poly (C) onto a nucleobase-SAM on a gold electrode of quartz crystal microbalance (QCM) was measured as resonance frequency changes. The relative relation among four bases showed similar tendency in the adhesion force measured by the cytosine AFM-tip and in the adsorption amount of poly (C) on the QCM electrode as well as in the theoretically calculated interaction energies between two nucleobases.

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