Browsing Irwana Nainggolan, Dr. by Author "Ainnie Shakirah, Arif"

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    • Chitosan pH Sensor 

      Irwana, Nainggolan, Dr.; Khairel Rafezi, Ahmad, Dr.; Ainnie Shakirah, Arif (Malaysian Invention and Design Society (MINDS), 2010-05-14)
      Chitosan is a natural biomaterial derived from the alkaline deacetylation of chitin that is present in many crustaceans, insects and mollusk shells. In this work, chitosan solution was deposited on a substrate using ...

    • Study on agitating time effect to electrical characteristics of chitosan sensor 

      Ainnie Shakirah, Arif; Irwana, Nainggolan; Tulus Ikhsan, Nasution (Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)
      The film sensors based on chitosan as a sensing material have been successfully fabricated using an electrochemical deposition technique. The agitating times of preparing chitosan solution were investigated for 1, 2 and 5 ...