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Träfflista för sökning "WFRF:(Yantchev Ventislav) "

Sökning: WFRF:(Yantchev Ventislav)

  • Resultat 1-2 av 2
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1.
  • Johansson, Linda, et al. (författare)
  • Surface acoustic wave-induced precise particle manipulation in a trapezoidal glass microfluidic channel
  • 2012
  • Ingår i: Journal of Micromechanics and Microengineering. - : IOP Publishing. - 0960-1317 .- 1361-6439. ; 22:2, s. 025018-
  • Tidskriftsartikel (refereegranskat)abstract
    • Surface acoustic wave (SAW) excitation of an acoustic field in a trapezoidal glass microfluidic channel for particle manipulation in continuous flow has been demonstrated. A unidirectional interdigital transducer (IDT) on a Y-cut Z-propagation lithium niobate (LiNbO3) substrate was used to excite a surface acoustic wave at approximately 35 MHz. An SU8 layer was used for adhesive bonding of the superstrate glass layer and the substrate piezoelectric layer. This work extends the use of SAWs for acoustic manipulation to also include glass channels in addition to prior work with mainly poly-di-methyl-siloxane channels. Efficient alignment of 1.9 mu m polystyrene particles to narrow nodal regions was successfully demonstrated. In addition, particle alignment with only one IDT active was realized. A finite element method simulation was used to visualize the acoustic field generated in the channel and the possibility of 2D alignment into small nodal regions was demonstrated.
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2.
  • Katardjiev, Ilia, et al. (författare)
  • Recent developments in thin film electro-acoustic technology for biosensor applications
  • 2012
  • Ingår i: Vacuum. - : Elsevier BV. - 0042-207X .- 1879-2715. ; 86:5, s. 520-531
  • Forskningsöversikt (refereegranskat)abstract
    • The article reviews recent developments of the thin film electro-acoustic (TEA) technology in view of the design and fabrication of micro-acoustic transducers for biosensor applications. The use of the TEA technology leads to transducer miniaturisation, compatibility with the IC technology, possibility for multiplexing, decrease in fabrication cost, reduction of consumables, mass fabrication, etc. Focus lies on the design, fabrication and evaluation of the transducer performance in liquid media as judged by electro-acoustic behaviour and ultimately by mass and viscosity resolution. The analysis draws the conclusion that the thickness excited quasi-shear thin film bulk acoustic resonator technology is far ahead in its development with regard to other alternative approaches in terms of both performance and level of maturity. Consequently, the main aspects of the quasi-shear thin film bulk acoustic resonator (FBAR) technology from film synthesis and fabrication through to performance evaluation and demonstration are reviewed in detail.
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  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (1)
forskningsöversikt (1)
Typ av innehåll
refereegranskat (2)
Författare/redaktör
Katardjiev, Ilia (2)
Yantchev, Ventislav (2)
Wiklund, Martin (1)
Johansson, Stefan (1)
Johansson, Linda (1)
Enlund, Johannes (1)
Lärosäte
Uppsala universitet (2)
Kungliga Tekniska Högskolan (1)
Språk
Engelska (2)
Forskningsämne (UKÄ/SCB)
Teknik (2)
År
2012 (2)

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