Cover Page October-2019-Advanced Materials Letters

Advanced Materials Letters

Volume 10, Issue 10, Pages 711-714, October 2019
About Cover

Wearable Health Devices are proving to be extremely helpful for people to keep a check on their health conditions. People can monitor their status at a fitness level and also at the proper medical level. With already a number of smart products in the market and the surge in the implementation IoT and AI in the healthcare sector, it is safe to say that the future lies in virtual healthcare and Wearable Health Devices. The cover photo of this October 2019 issue is inspired by the editorial article "Wearable Healthcare Devices", by Dr. Ashutosh Tiwari.


Water Management within Tragacanth gum-g-polyitaconic Acid Hydrogels

Chetna Verma1, 4, Poonam Negi2, Deepak Pathania3, Sadiya Anjum4, Bhuvanesh Gupta4,*

1Department of Chemistry, Shoolini University, Solan, Himachal Pradesh 173229, India

2Department of Pharmacy, Shoolini University, Solan, Himachal Pradesh 173229, India

3Department of Environmental Science, Central University of Jammu, Jammu & Kashmir 181143 India

4Bioengineering Laboratory, Department of Textile Technology, Indian Institute of Technology, New Delhi 110016, India

Adv. Mater. Lett., 2019, 10 (10), pp 711-714

DOI: 10.5185/amlett.2019.4090

Publication Date (Web): Sep 18, 2019

E-mail: bgupta@textile.iitd.ernet.in

Abstract

In our investigation, we have studied the interaction of the water molecules with the hydrophilic sites in itaconic acid grafted Tragacanth gum copolymer. The water existed in two different states within the hydrogel matrix. There is one fraction of water which has close interaction with functional groups and does not undergo freezing during cooling. Besides, this the other type of water undergoes thermal transitions and freezes at -50°C. The water management within the grafted matrix seems to be strongly governed by hydrophilicity, crosslinked density and functionality. The water uptake by the hydrogel increased significantly as the degree of grafting increased, in spite of the increasing crosslink density of the matrix. Results have been explained in terms of the carboxylic groups and their ionization which has an overriding influencing the hydrogel structure leading to a more amenable structure for the water diffusion. © VBRI Press.

Keywords

Tragacanth gum, itaconic acid, graft copolymer, water management

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