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Listar por materia "Hydrogel"

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  • Crystallization of PNIPAM-hydrogel nanospheres inferred by static light scattering 
    Reyes Contreras, Delfino; MAYORGA ROJAS, MIGUEL; ROJAS OCHOA, LUIS FERNANDO; HARO PEREZ, CATALINA ESTER (Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C., 2013)
    In this paper we present a kinetic study on crystallization of a colloidal dispersion formed by thermosensitive Poly-N- Isopropylacrylamide (PNIPAM) nanospheres. The liquid-crystal transition is induced by decreasing the ...
  • Tunable hybrid phononic crystal lens using thermo-acoustic polymers 
    Neogi, Arup; Walker, Ezekiel; Reyes López, Delfino; Jin, Yuqi (ACS, 2019-09-30)
    Solid phononic crystal (PnC) lenses were made active on infiltration with thermosensitive polymers to produce a thermoactuated hybrid solid lens with variable focusing. Acoustic lenses, both solid state and PnCbased, are ...
  • Tunable ultrasonic phononic crystal controlled by infrared radiation 
    Walker, Ezekiel; Reyes Contreras, Delfino; Mayorga Rojas, Miguel; Krokhin, Arkadii; Neogi, Arup; Wang, Zhiming (APPLIED PHYSICS LETTERS, 2014-09-07)
    A tunable phononic crystal based ultrasonic filter was designed by stimulating the phase of the polymeric material embedded in a periodic structure using infrared radiation. The acoustic filter can be tuned remotely using ...

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