• Continuous water adsorption states promoted by Ni2+ confined in a synthetic smectite 

      Altoé, Mário Alberto Simonato; Michels, Leander; dos Santos, Everton; Droppa Jr., Roosevelt; Grassi, Giovanni; Ribeiro, Luciano; Knudsen, Kenneth; Bordallo, Heloisa N.; Fossum, Jon Otto; da Silva, Geraldo José (Journal article, 2016)
      The water adsorption isotherms of Ni-fluorohectorite have been obtained from the relative humidity dependence of X-ray diffraction intensities, and continuous transitions between the stable hydration states were observed. ...
    • Electric-field-induced structuring and rheological properties of kaolinite and halloysite 

      Rozynek, Zbigniew; Zacher, Tomáš; Janek, Márian; Čaplovičová, Mária; Fossum, Jon Otto (Journal article, 2013)
      Electric-field-induced structuring of kaolinite and halloysite particles was studied in respect to their electrorheological (ER) response in silicone oil and in paraffin dispersions. The structural and morphological ...
    • EXAFS and XRD studies in synthetic Ni-Fluorohectorite 

      Michels, Leander Edward; Ribeiro, Luciano; Mundim, Maria Suely Pedrosa; Sousa, Marcelo Henrique; Droppa, Roosevelt; Fossum, Jon Otto; da silva, Geraldo Jose; Mundim, Kleber Carlos (Journal article, 2014)
      In the present work the synthetic clay mineral fluorohectorite was studied by means of an extended X-ray absorption fine structure (EXAFS) in a powder sample with the intention to observe the number of neighboring atoms ...
    • Smectite as ciprofloxacin delivery system: Intercalation and temperature-controlled release properties 

      Rivera, A; Valdes, L; Jimenez, J; Perez, I; Lam, A; Altshuler, E; De Menorval, LC; Fossum, Jon Otto; Hansen, Elisabeth Lindbo; Rozynek, Zbigniew Jerzy (Journal article; Peer reviewed, 2016)
      Clays have shown to be good candidates as drug delivery carriers. In the present paper, the temperature-dependent swelling of smectites was exploited to obtain composites able to release a drug in a controlled way. More ...