alexa Water Content Dependent Mechanical Properties Of Biopolymer Thin Films: A Molecular Dynamics Study | 62988
ISSN: 2169-0022

Journal of Material Sciences & Engineering
Open Access

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

7th Annual Congress on Materials Research and Technology

Santhosh Mathesan, Amrita Rath and Pijush Ghosh
Indian Institute of Technology Madras, India
ScientificTracks Abstracts: J Material Sci Eng
DOI: 10.4172/2169-0022.C1.058
Abstract
Moisture responsive biopolymers are gaining importance due to its capability to replicate the stimuli responsive behavior observed in nature. They are three dimensional polymer network structure which changes its volume, by retaining large quantity of water. They have wide range of applications in actuators, water purification and flow controlling valves. Self-folding is a well-known response observed in water responsive biopolymers. In the presence of water, the film experiences inhomogenous swelling maintaining it in differential stressed state. The differential stress state assists the film to exhibit self-folding phenomenon. Also, the water content in consecutive layers varies across thickness of the film. Thus, modifying the mechanical properties and diffusion characteristics of each layer of biopolymer film. Chitosan (CS) is a moisture responsive biopolymer which can demonstrate self-folding phenomenon. However, chitosan film shows structural instability during self-folding due to its lower mechanical properties and higher swelling capacity. Strength of biopolymers are either enhanced by cross-linking process or reinforcing with nanofillers. Here, chitosan matrix is reinforced with hydroxyapatite (HAP) to modify its mechanical properties. Though HAP enhances the strength of CSHAP film in dry state, diffusion of water alters its mechanical properties during the folding phenomenon. Therefore, it is necessary to understand the influence of water on mechanical properties of pristine CS and HAP reinforced chitosan. Molecular dynamics (MD) simulation is one of the promising tools to explore the mechanism behind macroscopic properties. In this work, we will present the influence of varying water content on directional dependent mechanical properties of CS and CSHAP nanocomposite systems. For these systems, the stiffness matrix will be determined by applying constant strain minimization technique in MD. It can be correlated with the direction dependent diffusion coefficient matrix explaining the self-folding process. Nano-mechanical characterization of CS and CSHAP in the dry and wet state will be performed using depth sensing nanoindentation. This technique will be complementing the results observed in MD simulation.
Biography

Santhosh Mathesan is pursuing his PhD in Department of Applied Mechanics at Indian Institute of Technology Madras (IITM) at Chennai, India. Before joining IITM, he has completed his Master’s in Aeronautical Engineering at Madras Institute of Technology, Anna University in Chennai, India in the year 2012. His current research interests include “Materials like water responsive biopolymers/nanocomposites, which can potentially find application in bio-sensors and drug delivery”. He utilizes Molecular Dynamics Simulations to understand the atomistic level interaction mechanisms responsible for macroscopic properties observed in water responsive hydrogels. This helps in tailoring the properties of materials suitable for biomedical applications. He has also worked in design and fabrication of hybrid rocket motor. He has done thermal-mechanical characterization of hybrid fuel having high regression rate.

Email: [email protected]

image PDF   |   image HTML
 

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2018-19
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

+1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2018 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
Leave Your Message 24x7