Browsing Irwana Nainggolan, Dr. by Subject "Electrical properties"

Now showing items 1-3 of 3

    • Electrical properties of chitosan-ferredoxin film 

      Shantini, Devi; Irwana, Nainggolan, Dr.; Mohd Nazree, Derman, Dr.; Tulus Ikhsan, Nasution (American-Eurasian Network for Scientific Information (AENSI), 2013)
      In this study, chitosan was blended with ferredoxin to further improve the electrical properties of sensing film. Chitosan powder was dissolved in 2% of acetic acidand blended with ferredoxin. The mixture was subsequently ...

    • Milk quality degradation sensor based on chitosan biopolymer 

      Nainggolan, Irwan, Dr.; Nasution, Tulus Ikhsan, Dr.; Shantini, Devi (Universiti Malaysia Perlis (UniMAP), 2012-06-18)
      Chitosan thin film used as sensing material because of its structure and properties where it consist of amine group which has free electron. Milk powder can undergo oxidation process when exposed in the air. In this ...

    • The sensing mechanism and detection of low concentration acetone using chitosan-based sensors 

      Tulus Ikhsan, Nasution; Irwana, Nainggolan, Dr.; Sabar Derita, Hutagalung, Dr.; Khairel Rafezi, Ahmad, Dr.; Zainal Arifin, Ahmad (Elsevier B. V., 2013)
      This paper aims to discuss the usage of chitosan film sensors to detect acetone concentrations in human breath, in order to precisely diagnose diabetes mellitus in patients. Acetone concentration in the breath varies from ...