Preparation and Characterization of Polymer Nanocomposites for Biosensors Applications

EasyChair Preprint no. 12765

Abstract

Biosensors are advanced devices that bridge biology and technology and act as detectors of chemical compounds through physical and chemical means. Different types of sensors, such as chemical and biological sensors, play a crucial and useful role in our daily lives. In this work, we developed a biosensor device to detect blood glucose levels. The biosensor was manufactured in an easy and inexpensive way from accessible materials using uncomplicated techniques. The production of silver nanoparticles with a grain size ranging from 5 to 30 nanometers and a purity level of up to 99.9% took place in a laboratory by dissolving silver nitrate in a solution of okra plant extract. A semiconductor material from the okra plant was mixed with polyaniline in a 1:1 ratio to make the glucose sensor. It also had 10 weight percent silver nanoparticles and a glucose enzyme added to it. The sensor demonstrated the ability to detect low amounts of glucose, as low as 0.25 mg/100 ml. The sensor circuit output current was 50 μA at 2.6 V and 397 μA at 2.6 V at the highest concentration of 100 mg/100 mL. The sensor operates at a constant voltage of 2.6 V. Glucose sensors have properties such as linearity, sensitivity, and selectivity. Multiple chemicals were scanned with the sensor, but no current was detected. Likewise, it did not record any data in the air. The water was tested, and the reading was 42 microamps, which is much lower than the sensor readings. It is also environmentally beneficial, as it is manufactured from natural ingredients that are not toxic to the environment. Therefore, it can be considered as a suggested alternative to the sensors used. The examination was also carried out with an SEM device, through which the nanosized size of the nanoparticle was determined, as well as the homogeneity of the mixture of the semiconducting material with the okra plant.

Keyphrases: AgNPs, Glucose sensing, H2O2, Polyaniline, semiconductive

@Booklet{EasyChair:12765,
  author = {Malak Wadi and Asra Ail Hussein and Mohamed Hamzah Al-Maamori},
  title = {Preparation and Characterization of Polymer Nanocomposites for Biosensors Applications},
  howpublished = {EasyChair Preprint no. 12765},

  year = {EasyChair, 2024}}