Novel biodegradable hydrogel based on natural polymers: Synthesis, characterization, swelling/reswelling and biodegradability

Tanan, Warunee; Panichpakdee, Jate; Saengsuwan, Sayant

doi:10.1016/j.eurpolymj.2018.10.033

Cited by 191 publications

(153 citation statements)

References 41 publications

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“…Structural disintegration probably weakens the starch granules after modifications, and this enhanced leachates from the starch increased starch solubility. Similar observations have been reported earlier for starches of rice (Liu et al, 1999;Gonzalez and Perez, 2002), wheat (Wootton and Chaudhry, 1979) and great Northern Bean (Sathe et al, 1981).…”

Section: Effect Of Starch Modification By Different Methods On Functisupporting

confidence: 91%

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Effect of starch modification on physico-chemical, functional and structural characterization of cassava starch (Manihot esculenta Crantz)

Dolas¹,

Ranveer²,

Tapre³

et al. 2020

Food Res.

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Starch extracted from cassava was subjected to chemical and enzymatic modification. Extracted native starch and modified starches were evaluated for proximate analysis and then assessed for different functional properties such as water-binding capacity, swelling power and solubility. Chemically and enzymatic modified starches recorded higher waterbinding capacity i.e. 89.69% and 96.10% respectively and higher solubility 80.33% and 79.66% respectively as compared to native starch having the water-binding capacity 70.63% and solubility 25.18%. Scanning electron microscopy revealed round to polygonal in shapes with smooth surface for native starch and spherical to oval shaped granules for chemically modified starch. Enzymatic modified starch showed relatively rough surface, pores and cracks on surface fissures. X-ray diffractograms showed typical 'B' for pattern native starch but in modified starches showed typical 'A' pattern comparatively reduced peak and covers a larger area. FT-IR Image of starch and modified starch showed the typical peaks for the starch backbone. The O-H (alcohol) stretching band in the region 3500-3000 cm -1 was found to be broadened and became less sharp, strong and broad in the spectra of the native and chemical modified starch, in comparison to that of the enzyme modified starch. Functional properties of starch such as water-binding capacity and solubility of starch granules increased by chemical and enzymatic modification.

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Section: Effect Of Starch Modification By Different Methods On Functisupporting

confidence: 91%

“…The X-ray diffraction pattern of the modified starches showed typical A-type starch peaks, but the relative crystallinities were lower than that of raw starch. A similar trend was recorded by Tanan et al (2019).…”

Section: Effect Of Modification Of Starch On Particle Nature Of Starchsupporting

confidence: 88%

Effect of starch modification on physico-chemical, functional and structural characterization of cassava starch (Manihot esculenta Crantz)

Dolas¹,

Ranveer²,

Tapre³

et al. 2020

Food Res.

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“…This phenomenon suggests that lignin‐based hydrogels will have less water retention in saline soils, which are often water limited. Compared to other studies where the swelling capacities of various hydrogels were reduced to 40–60% following exposure to 0.01 m NaCl solution and also were decreased to 60–98% when saturated with 0.01 m CaCl 2 solution, while 20% and 60% reduction in lignin‐based hydrogel were obtained for 0.01 m NaCl and 0.01 m CaCl 2 solutions, respectively. This indicates that the lignin‐based hydrogel was less sensitive to the negative effects of saline solutions, based on its swelling capacity, compared to other natural or synthetic polymeric hydrogels.…”

Section: Resultscontrasting

confidence: 73%

Development and Characterization of Lignin‐Based Hydrogel for Use in Agricultural Soils: Preliminary Evidence

Mazloom

Khorassani

Zohuri

et al. 2019

CLEAN Soil Air Water

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In arid and semi‐arid regions of the world, agricultural production is greatly limited by water scarcity and inefficient water use. Water‐absorbent hydrogels are a technological solution that can retain soil water for plants. A lignin‐based hydrogel as a natural plant‐based water absorbent is prepared from lignin alkali polymers and poly(ethylene glycol) diglycidyl ether (PEGDGE) in adjusted alkali (NaOH) solution. The maximum swelling capacity of the hydrogel is achieved in 1.5 m NaOH with 0.5 mmol PEGDGE g lignin −1. Water swelling capacity is 34 g g Hydrogel −1 dry weight of hydrogel in distilled water, which is reduced to 53% and 64% in 0.1 m NaCl and 0.1 m CaCl2 solution, respectively. Biodegradability and phytotoxicity tests show that 6.5% of the sample mass decomposed after 40 days of incubation in soil solution media and the hydrogel is not phytotoxic to wheat seeds. These findings support the use of the lignin‐based hydrogel as an environmentally friendly additive to promote water retention in dry, saline soils. Due to the limitations of this study, further assessments are needed in order to understand the efficiency of lignin‐based hydrogel application in different soils with different biota.

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“…The erosion type and degradation rate depend on the in vivo hydrogel characteristics and can be tuned for different applications. In general, the best in vivo performance of hydrogels can be achieved through optimizing the degradation rate via control over the polymer characteristics such as surface properties and degree of cross-linking (Tan and Marra, 2010;Bae et al, 2013;Tanan et al, 2019).…”

Section: Tailored Hydrogels For Tissue Engineeringmentioning

confidence: 99%

Insight Into the Current Directions in Functionalized Nanocomposite Hydrogels

et al. 2020

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Since the introduction of tissue engineering as an encouraging method for the repair and regeneration of injured tissue, there have been many attempts by researchers to construct bio-mimetic scaffolds which mimic the native extracellular matrix, with the aim of promoting cell growth, cell proliferation, and restoration of the tissue's native functionality. Among the different materials and methods of scaffold fabrication, one particularly promising class of materials, hydrogels, has been extensively studied, with the inclusion of nano-scaled materials into hydrogels leading to the creation of an exciting new generation of nanocomposites, known as nanocomposite hydrogels. To closely mimic the native tissue behavior, scientists have recently focused on the functionalization of incorporated nanomaterials via chiral biomolecules, with reported results showing great potential. The current article aims to introduce a perspective of nano-scaled cellulose as a promising nanomaterial which can be multi-functionalized for the fabrication of nanocomposite hydrogels with applications in tissue engineering and drug delivery systems. This article also briefly reviews the recently reported literature on nanocomposite hydrogels incorporated with chiral functionalized nanomaterials. Such knowledge paves the path for the development of tailored hydrogels toward practical applications.

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Novel biodegradable hydrogel based on natural polymers: Synthesis, characterization, swelling/reswelling and biodegradability

Cited by 191 publications

References 41 publications

Effect of starch modification on physico-chemical, functional and structural characterization of cassava starch (Manihot esculenta Crantz)

Effect of starch modification on physico-chemical, functional and structural characterization of cassava starch (Manihot esculenta Crantz)

Development and Characterization of Lignin‐Based Hydrogel for Use in Agricultural Soils: Preliminary Evidence

Insight Into the Current Directions in Functionalized Nanocomposite Hydrogels

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