Emerging Concepts in Analysis and Applications of Hydrogels

doi:10.5772/61692

Cited by 34 publications

References 12 publications

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Eco‐friendly three‐dimensional hydrogels for sustainable agricultural applications: Current and future scenarios

Azeem

Islam

Khan

et al. 2023

Polymers for Advanced Techs

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Modern world is searching for water efficient agriculture techniques as irrigation is becoming scarce. Limited water resources and more food demand are the two key challenges in agriculture. Hydrogels which can respond intelligently by pH, temperature, light, ionic strength, osmotic pressure, magnetic or electric field changes are termed as intelligent or smart hydrogels which are analogous to conventional hydrogels in preparatory methods and features. Lag phase, constant release and decay phase are three steps involved in release of nutrients from polymeric hydrogels. In fact, hydrogels act as little reservoirs of water and dissolve nutrients that are released in controlled manner anchored by plant roots via capillary action. Hydrogels also sustain optimum amount of water in water stress conditions and reabsorb water in moist conditions which ultimately increases seedling, seed germination, plant growth and crop yield. Fertilizer and salt release are majorly dependent upon pH and temperature followed by diffusion‐controlled mechanism. Cross‐linkers, binders and fillers play pivotal role in determining properties, architecture and hydrogel pores. In comparison to potassium (K+) and phosphate (PO4−3) ions, nitrates (NO3−1) and ammonium (NH4+1) ions exhibited faster release rate. This review spotlights application prospects of three dimensional hydrogel in agriculture. Initially, properties of hydrogels, their classification, preparatory methods, effect of natural‐synthetic‐polymer blending and role of fillers are stated. Afterward, hydrogel functioning, significance, advantages, mechanism of fertilizer release and agriculture specific applications of hydrogels are comprehensively described. In conclusion, extraordinary biocompatible, cheaper, stable, biodegradable, durable, non‐toxic and re‐wettable characteristics of hydrogel systems motivated their utilization in agronomical applications.

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Eco‐friendly three‐dimensional hydrogels for sustainable agricultural applications: Current and future scenarios

Azeem

Islam

Khan

et al. 2023

Polymers for Advanced Techs

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Chitosan and Carrageenan‐Based Biocompatible Hydrogel Platforms for Cosmeceutical, Drug Delivery, and Biomedical Applications

et al. 2022

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Hydrogels are three‐dimensional water hungry networks that are currently the focus of intense scientific investigations owing to their potential applications in biomedicine, pharmaceuticals, biotechnology, biosensing, agriculture and cosmetics. Traditional hydrogels are incorporated with toxic cross‐linkers, lower drug loading and are shorter in load bearing capacity. Hydrogels demonstrate significant physiochemical modification in reaction to minor fluctuations in surrounding medium. Therefore, diverse cross‐linkers, polymer blending, modification in polymers/cross‐linkers and addition of reinforcement approaches are used. This review offers a comprehensive overview of application prospects of chitosan and carrageenan‐based hydrogel materials in biomedical sector. Initially, properties of hydrogels, their types, impact of natural‐synthetic polymer blending, requirement of filler and applications of hydrogels are summarized. Afterward, the applications of chitosan and carrageenan hydrogel platforms for drug delivery, tissue engineering, cosmetics, dentistry and ophthalmic treatment are thoroughly vetted. In conclusion, the extraordinary biocompatible, biodegradable and non‐toxic features of chitosan and carrageenan‐based hydrogel systems promote their applicability in biomedical fields.

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Analysis of Diffusion of Synthetic Wound Antimicrobials from PVA Hydrogel Using Free Volume Theory

Natesan,

Swaminathan

2024

Lecture Notes in Mechanical Engineering

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Emerging Concepts in Analysis and Applications of Hydrogels

Cited by 34 publications

References 12 publications

Eco‐friendly three‐dimensional hydrogels for sustainable agricultural applications: Current and future scenarios

Eco‐friendly three‐dimensional hydrogels for sustainable agricultural applications: Current and future scenarios

Chitosan and Carrageenan‐Based Biocompatible Hydrogel Platforms for Cosmeceutical, Drug Delivery, and Biomedical Applications

Analysis of Diffusion of Synthetic Wound Antimicrobials from PVA Hydrogel Using Free Volume Theory

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