Revolutionizing Material Science: The Impact of Polymeric Nanocomposites | Chapter 1 | Exploration of Knowledge and Information in Sciences

The field of materials science has been revolutionized by the introduction of polymer nanocomposites, which combine the unique properties of polymers and nanoscale fillers to create materials with superior functionalities. The integration of nanoscale fillers into polymer matrices has led to significant advancements in mechanical, thermal, electrical, and barrier properties. This chapter provides a comprehensive overview of polymer nanocomposites, discussing their classification, synthesis methods, characterization techniques, and diverse applications in industries such as automotive, aerospace, electronics, and packaging. Additionally, this study addresses the challenges in the development of these materials and explores future research directions, highlighting their potential to further enhance material performance.

 

Author (s) Details

 

Puneet Gupta
Department of Physics, S. A. Jain (P. G.) College, Ambala City, Haryana, India.

 

Anil Tomar
Department of Physics, S. A. Jain (P. G.) College, Ambala City, Haryana, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/mono/978-93-48859-02-0/CH1

Investigation of the Gas Sensing Potential of Electrospun Expanded Polystyrene/ Reduced Graphene Oxide Nanofiber Composites | Chapter 1 | Chemical and Materials Sciences - Developments and Innovations Vol. 2

 

The gas sensing potential of electrospun nanofiber composites consisting of expanded polystyrene (EPS) and carbon-based nanofillers was investigated in this study. The nanofiber composites of expanded polystyrene (EPS) and reduced graphene oxide (RGO), EPS and carbon black (CB), and hybrid EPS/CB/RGO were produced by solution mixing followed by electrospinning. The surface morphologies of the developed nanofibers were studied with SEM, and the percolation threshold was determined with Keithely 2000 multimeter with four-point probes. The gas-sensing behavior was investigated in a gas-sensing unit. The SEM micrographs revealed long, uniform, and continuous nanofibers without beads or spindles. Homogenous dispersion of the nanofillers in the polymer matrix was also observed. Low percolation thresholds of between 0.07 and 0.2 wt.% were observed for the EPS/RGO composite and 2.0 wt.% for the EPS/CB composite. EPS/RGO sensor exhibited good stability but moderate sensitivity on exposure to the analyte gases. The hybrid composite; EPS/CB/RGO showed improved sensitivity than the others and comparable stability to EPS/RGO. The EPS/CB suffered from instability in response as a result of variations in baseline resistance. A rapid response time of 19s and a short recovery time of 20s were recorded with EPS/CB/RGO exposure to ethanol. The EPS/RGO sensor shows good linearity and reproducibility with a regression coefficient of 0.8975 with ethanol and 0.961 with toluene.

 

Author(s)details:-

 

Okparaocha Funmilayo Joke
Federal College of Animal Health and Production Technology, Ibadan, Nigeria and Department of Analytical Chemistry, University of Ibadan, Nigeria.

 

Ipeaiyeda Ayodele Rotimi
Department of Analytical Chemistry, University of Ibadan, Nigeria.

 

Mamookho Elizabeth Makhatha
Department of Metallurgy, University of Johannesburg, South Africa.

 

Oyeleke Peter Olaoye
Federal College of Animal Health and Production Technology, Ibadan, Nigeria.

 

Shorinmade Adijat Yetunde
Federal College of Animal Health and Production Technology, Ibadan, Nigeria.

Obero Ofunami Joy
Federal College of Animal Health and Production Technology, Ibadan, Nigeria.

 

Oluwasusi Taye Victoria
Department of Physics, Bingham University, Karu, Nasarawa State, Nigeria.

 

Abejide Tolulope Bayode
College of Science and Engineering, University of Derby, United Kingdom.

 

Abdulrahman Abdulsemiu Ayantunde
Department of Chemistry, Clemson University, South Carolina, USA.

 

Please See the book here :-  https://doi.org/10.9734/bpi/cmsdi/v2/8421E

Nanocomposites – A Promising Tool in Safe and Effective Drug Delivery | Chapter 7 | Trends in Pharmaceutical Research and Development Vol.3

Nanocomposites are highly unique and high performing materials, which have now become an
assuring area of research and development. The particle size in nanomaterials makes it more
practicable to be used conveniently in formulating novel drug delivery system and can also be used as
a novel carrier for delivering or targeting drugs. A solid material with one of the phases being one, two
or three dimensional structure with less than 100nm size is called as nanocomposite. Nanofillers are
used in the polymer matrix to improve the properties of nanocomposites. Such nanofillers help in
rendering the nanocomposites higher in weight and increased properties with respect to thermal,
mechanical, chemical, optical, magnetic, electrical properties, etc. leading to much advantageous
drug delivery compared to the basic composites. Recent researches in drug delivery using
nanocomposites is becoming a trend in targeted and site specific drug delivery where many scientific
data have been proved to have safe and effective drug delivery at a faster rate in comparison with
conventional dosage forms. Thus the current review deals with the study of nanocomposites in safe
and effective drug delivery.

Author(s) Details

Dr. X. Fatima Grace
Department of Pharmaceutics, Faculty of Pharmacy, Sri Ramachandra Institute of Higher Education and Research (DU), Porur, Chennai – 600116, India.

View Book :- http://bp.bookpi.org/index.php/bpi/catalog/book/222