7235. Ion-surface interaction system (ISIA) for the study of redeposited materials: an application of decelerated ion beams with quartz-crystal microbalances

Vacuum ◽  
1991 ◽  
Vol 42 (8-9) ◽  
pp. 574
Keyword(s):  
Quartz Crystal ◽  
Ion Beams ◽  
Surface Interaction ◽  
Interaction System ◽  
Quartz Crystal Microbalances

Quartz Crystal Microbalances Functionalized with Citric Acid-Doped Polyvinyl Acetate Nanofibers for Ammonia Sensing

2020 ◽  
Vol 3 (6) ◽  
pp. 5687-5697 ◽  
Author(s):  
Roto Roto ◽  
Aditya Rianjanu ◽  
Annisa Rahmawati ◽  
Innas Amaliya Fatyadi ◽  
Nursidik Yulianto ◽  
...  
Keyword(s):  
Citric Acid ◽  
Quartz Crystal ◽  
Polyvinyl Acetate ◽  
Ammonia Sensing ◽  
Quartz Crystal Microbalances

Design of 3D printed holder for quartz crystal microbalances

2021 ◽  
Author(s):  
Diego Scaccabarozzi ◽  
Bortolino Saggin ◽  
Marianna Magni ◽  
Pietro Valnegri ◽  
Marco Giovanni Corti ◽  
...  
Keyword(s):  
Quartz Crystal ◽  
Quartz Crystal Microbalances ◽  
3D Printed

Functionalized Polymers as Receptors for Detection of Cells

2011 ◽  
Vol 64 (9) ◽  
pp. 1256 ◽  
Author(s):  
Miroslava Polreichova ◽  
Usman Latif ◽  
Franz L. Dickert
Keyword(s):  
Soft Lithography ◽  
Quartz Crystal ◽  
Coli Strain ◽  
Yeast Cells ◽  
Label Free ◽  
Sensitive Material ◽  
E Coli ◽  
Label Free Detection ◽  
Quartz Crystal Microbalances ◽  
Cell Strains

Mass sensitive sensors were applied for fast and label-free detection of bio-analytes. Robust and miniaturized sensor devices were fabricated by combining bio-mimetic imprinted surfaces with quartz crystal microbalances for the analysis of yeast and bacteria cells. These sensors allow us to differentiate between different growing stages of yeast cells. Moreover, the viability of cells was detected by structuring quartz crystal microbalance electrodes like a grid. Artificial yeast cells were produced to pattern the recognition layer, giving reversible enrichment of the respective bio-analytes. This approach was followed to ensure the reproducibility of the identical sensitive material in each case, because the properties of each cell depend on its growth stage, which varies over time. The strategy was further applied to develop a sensitive system for Escherichia coli. Structuring of these materials by soft lithography allows differentiation between cell strains, e.g. E. coli (strain W & B) with a five-fold selectivity.

Modelling of a Piezoelectric Polymer Film System for Biosensing Applications

2010 ◽  
Vol 636-637 ◽  
pp. 1206-1211
Author(s):  
Paulo Inácio ◽  
J.N. Marat-Mendes ◽  
Eugen R. Neagu ◽  
C.J. Dias
Keyword(s):  
Polymer Film ◽  
Quartz Crystal ◽  
Electronic Circuit ◽  
Flow Cell ◽  
Film System ◽  
The Finite Element Method ◽  
Polyvinylidene Difluoride ◽  
Piezoelectric Polymer ◽  
Quartz Crystal Microbalances ◽  
Acoustic Wave Devices

Most piezoelectric gravimetric biosensors are based on quartz crystal microbalances or surface acoustic wave devices. In this paper we describe a polymer film system, made of piezoelectric polyvinylidene difluoride (PVDF) and the Immobilon-P membrane (porous PVDF), for biosensing applications. In operation a film is accommodated in a flow cell and connected to an electronic circuit, constituting an oscillatory resonant device; the output signal is its resonance frequency. This device successfully detected the binding between bovine IgG and bovine anti-IgG. Work on the modelling of this film system is presented. Two different approaches are being considered: the finite element method (FEM) and the ABCD matrices. Results comparing theoretical and experimental data are presented.

Synthesis of 9,9′-Spirobifluorenes and 4,5-Diaza-9,9′-spirobifluorenes and Their Application as Affinity Materials for Quartz Crystal Microbalances

ChemPlusChem ◽  
2017 ◽  
Vol 82 (5) ◽  
pp. 758-769 ◽  
Author(s):  
Caroline Stobe ◽  
Isabella Pyka ◽  
Alexander Linke ◽  
Sarah Müller ◽  
Gregor Schnakenburg ◽  
...  
Keyword(s):  
Quartz Crystal ◽  
Quartz Crystal Microbalances
Sign in / Sign up

Export Citation Format

Share Document