Classification, processing and application of hydrogels: A review.
This article aims to review the literature concerning the choice of selectivity for hydrogels based on classification, application and processing. Super porous hydrogels (SPHs) and superabsorbent polymers (SAPs) represent an innovative category of recent generation highlighted as an ideal mould system for the study of solution-dependent phenomena. Hydrogels, also termed as smart and/or hungry networks, are currently subject of considerable scientific research due to their potential in hi-tech applications in the biomedical, pharmaceutical, biotechnology, bioseparation, biosensor, agriculture, oil recovery and cosmetics fields. Smart hydrogels display a significant physiochemical change in response to small changes in the surroundings. However, such changes are reversible; therefore, the hydrogels are capable of returning to its initial state after a reaction as soon as the trigger is removed.
School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia.
Faheem
F
Ullah
School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia.
Muhammad Bisyrul Hafi
MB
Othman
Department of Chemistry, Quaid-e-Azam University Islamabad, 45320 Islamabad, Pakistan.
Fatima
F
Javed
School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia.
Zulkifli
Z
Ahmad
School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia. Electronic address: hazizan@usm.my.
Hazizan
H
Md Akil
D001672:Biocompatible Materials / Q000737:chemistry*; D019245:Compressive Strength; D055119:Elastic Modulus; D006244:Hardness; D020100:Hydrogels / Q000737:chemistry*; D008422:Materials Testing; D053769:Nanocapsules / Q000737:chemistry* / Q000648:ultrastructure; D013718:Tensile Strength; D014783:Viscosity
D001672:Biocompatible Materials; D020100:Hydrogels; D053769:Nanocapsules
Crosslinked networks; Hydrogel classification; Hydrogels; Smart hydrogels; Super porous hydrogels; Superabsorbent polymers