Browsing Irwana Nainggolan, Dr. by Author "Tulus Ikhsan, Nasution"

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    • Chitosan Light Sensor 

      Irwana, Nainggolan, Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Assoc; Tulus Ikhsan, Nasution (Universiti Malaysia Perlis, 2010-01-07)
      Chitosan is a bio-polymer which has promising potential to be investigated as an alternative light sensing materials. It is produced by treating seafood waste, especially shells from crustaceans (shrimps, crabs, lobsters, ...

    • 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 ...

    • 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 ...

    • 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 ...

    • Water status detection by free-dipping method using chitosan based sensor 

      Tulus Ikhsan, Nasution; Irwana, Nainggolan, Dr.; M. N., Nasruddin; Maizal, Isnen; Oki, Handinata (American-Eurasian Network for Scientific Information (AENSI), 2010-10)
      A film sensor based on chitosan that is capable to evidence the different water status has been successfully fabricated by an electrochemical deposition technique. Main objective of this study is to utilize the chitosan ...