Fabrication and Characterization of One Interpenetrating Network Hydrogel Based on Sodium Alginate and Polyvinyl Alcohol

Zhang, Shangwen; Han, Dongdong; Ding, Zongxian; Wang, Xin; Zhao, Dan; Hu, Yan; Xiao, Xincai

doi:10.1007/s11595-019-2112-0

Cited by 37 publications

(16 citation statements)

References 32 publications

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“…For PVA/SA hydrogels, the freezing-thawing process was used to induce the first physical crosslinking network of PVA chains; then a secondary crosslinking network was induced through ionic coordination bonds between Ca 2+ and SA. [10,26] Several studies have reported that SA hydrogels owned the main drawbacks of weak strength [10] ; hence, the tensile strength of PVA/SA hydrogels increased with the increase of PVA content. In addition, the interpenetrating network structure of PVA/SA hydrogels combining both crosslinking methods could play a synergistic effect on the improvement of hydrogel strength.…”

Section: Resultsmentioning

confidence: 99%

“…[3,4] Among them, strain sensors and pressure sensors have caused immense research interest the raw materials of PVA and SA with the double physical crosslinking methods. [10] Jiang et al prepared an SA/PVA hydrogel achieving the desired enhanced mechanical properties and conductivity. [18] In addition, the PVA/SA hydrogels can be further reinforced by introducing cellulose into the matrix.…”

Section: Introductionmentioning

confidence: 99%

“…Hydrogels, a class of 3D networks formed by the cross‐linking of hydrophilic polymer chains within an aqueous microenvironment, which not only exhibits high flexibility, excellent stretchability, deformation restorability, and self‐healing ability, but also possesses good biocompatibility, biodegradability as well as non‐toxicity, making them a promising material for flexible actuators, soft electronics, wearable sensors, and implantable medical devices . Polyvinyl alcohol (PVA), as the largest water‐soluble polymer in the world, has been widely used in the fabrication of physically crosslinked hydrogels through freezing–thawing process . Due to their merits of safety, high flexibility, transparency, and mild and scalable preparation, PVA hydrogels are ideal candidates utilized for portable wearable sensor compared to other materials .…”

Section: Introductionmentioning

confidence: 99%

“…SA is capable of reacting with multi‐valent metal ions to form hydrogels via crosslinking reaction . However, the weak strength and instability are the main disadvantages of SA hydrogels, greatly limiting its application in various strength‐demanding fields . Accordingly, the blending of PVA and SA is properly adopted to form double physical crosslinking composite hydrogels, which can effectively improve the strength and stability of individual hydrogels .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Dual‐Mode Wearable Sensor Based on Bacterial Cellulose Reinforced Hydrogels for Highly Sensitive Strain/Pressure Sensing

Huang

Zhao

Cai

et al. 2019

Adv Elect Materials

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for their high sensitivity, easy signal collection, fast response, and simplicity of design, which are favored in diverse fields. [2,5] Consequently, the requirements for strain and pressure sensing materials are also highly proliferating. [6] Hydrogels, a class of 3D networks formed by the cross-linking of hydrophilic polymer chains within an aqueous microenvironment, which not only exhibits high flexibility, excellent stretchability, deformation restorability, and self-healing ability, but also possesses good biocompatibility, biodegradability as well as non-toxicity, making them a promising material for flexible actuators, soft electronics, wearable sensors, and implantable medical devices. [7,8] Polyvinyl alcohol (PVA), as the largest water-soluble polymer in the world, has been widely used in the fabrication of physically crosslinked hydrogels through freezing-thawing process. [9,10] Due to their merits of safety, high flexibility, transparency, and mild and scalable preparation, PVA hydrogels are ideal candidates utilized for portable wearable sensor compared to other materials. [11] Cai and co-workers reported an extremely stretchable piezoresistive strain sensor based on various self-healing PVA hydrogels such as carbon nanotubes (CNTs), graphene, and silver nanowire/PVA hydrogels, which could effectively monitor multifarious human motion when used as wearable sensor. [12] Hu et al. successfully prepared a composite conductive hydrogel combining PVA, polyaniline and glycerin, which demonstrated high sensitivity of 2.14, fast response time (230 ms), and long cyclic stability as wearable sensors. [13] Building multiple network structure is a desirable method to strengthen mechanical performance by exerting synergistic effect. [11,14] Sodium alginate (SA) is a common natural polysaccharide with extraordinary biocompatibility and biodegradability, which is extensively used in food, pharmaceutical preparations, and wastewater treatment. [15] SA is capable of reacting with multi-valent metal ions to form hydrogels via crosslinking reaction. [7] However, the weak strength and instability are the main disadvantages of SA hydrogels, greatly limiting its application in various strength-demanding fields. [10,16] Accordingly, the blending of PVA and SA is properly adopted to form double physical crosslinking composite hydrogels, which can effectively improve the strength and stability of individual hydrogels. [17] As verified in several literatures, Zhang and co-workers synthesized one interpenetrating network hydrogel based on Flexible and wearable sensors are fast establishing their status as go-to devices for human motion detection. A bacterial cellulose-reinforced hydrogel is fabricated through a facile and scalable freezing-thawing process with Ca 2+ crosslinking for strain and pressure sensing. Polyvinyl alcohol/sodium alginate/bacterial cellulose/modified carbon nanotube and carbon black hydrogels assembled as piezoresistive strain sensors and capacitive pressure sensors exhibit an excellent synchronicity betw...

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Dual‐Mode Wearable Sensor Based on Bacterial Cellulose Reinforced Hydrogels for Highly Sensitive Strain/Pressure Sensing

Huang

Zhao

Cai

et al. 2019

Adv Elect Materials

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“…On the other hand, polyvinyl alcohol (PVA) (Figure c) is a synthetic polymer that has been widely employed in biomedical applications . Integration of PVA and alginate have resulted in the design of smart hydrogel systems for a broad spectrum of applications ranging from agriculture to dye removal, pervaporation, wound dressings, tissue engineering and drug delivery …”

Section: Introductionmentioning

confidence: 99%

Controlled Release of 5‐Fluorouracil from Alginate Hydrogels by Cold HMDSO−Plasma Surface Engineering

et al. 2020

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For decades, 5‐fluorouracil (5FU) has been the only chemotherapeutic agent to demonstrate a strong activity against colorectal cancer. However intravenous administration of 5FU mandates the development of an oral controlled delivery system for improved patient compliances. With this rationale, hydrogels comprising polyvinyl alcohol and sodium alginate were crafted and subjected to cold atmospheric plasma treatment by coating with hexamethyldisiloxane (HMDSO) using three different carrier gases viz Ar, He and N2. Surface hydrophobicity ensuing from HMDSO plasma was evident from contact angle goniometry. FT‐IR analyses were affirmative of the effectual deposition of Si−O−Si and Si−CH3 groups on the hydrogel surfaces. Moreover, plasma treatment rendered the hydrogels stiffer and tougher. The plasma‐modified hydrogels displayed lower water uptake capacity in comparison to the pristine one. Drug release was significantly prolonged from the plasma‐treated hydrogels that conformed to the oral delivery of 5FU to colon. Preliminary kinetics assay revealed drug release was predominantly governed by polymer chain relaxation process post‐plasma modification. The Ar/HMDSO‐plasma modified hydrogel was found to be best of the lot for achieving an oral controlled release for 5FU.

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Sodium Alginate/Zwitterionic Polymer Gel Electrolyte for Integrated All‐Solid‐State Supercapacitors

Hou,

Wang,

Wang

2023

ChemNanoMat

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All‐solid‐state stretchable supercapacitors (SSSCs) have attracted widespread attention in the wearable and medical fields because of their nontoxic, safe, and environmentally friendly characteristics. In this paper, a dual network hydrogel polymer was synthesized by a one‐pot method, which was constructed from sodium alginate (SA) and zwitterion copolymer of acrylamide (AM) and sulfobetaine methacrylate (SBMA). The dual network hydrogel polymerSAm/P(AM‐co‐SBMA (SASm for short) were immersed in 1 M H2SO4 electrolyte to obtain gel polymer electrolytes (GPEs). Stretchable electrodes were synthesized on the matrix of SASm gels. Non‐integrated all‐solid‐state stretchable supercapacitors (non‐integrated SSSCs), integrated all‐solid‐state supercapacitors (SSCs) and integrated SSSCs were all assembled into the ‘sandwich’ structure. The elongation of the integrated SSSC is the best and reaches 280 %, and its areal capacitance is 1.96 mF/cm2 under a current destiny of 50 μA/cm2, and the capacitance still remains 95 % of the initial value after 10000 charge and discharge cycles, and its energy density is 5.8×10−2 μWh/cm2 at a power density of 2.9×10−2 mW/cm2. This integrated SSSC has excellent cycling stability while maintaining good tensile properties.

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Fabrication and Characterization of One Interpenetrating Network Hydrogel Based on Sodium Alginate and Polyvinyl Alcohol

Cited by 37 publications

References 32 publications

A Dual‐Mode Wearable Sensor Based on Bacterial Cellulose Reinforced Hydrogels for Highly Sensitive Strain/Pressure Sensing

A Dual‐Mode Wearable Sensor Based on Bacterial Cellulose Reinforced Hydrogels for Highly Sensitive Strain/Pressure Sensing

Controlled Release of 5‐Fluorouracil from Alginate Hydrogels by Cold HMDSO−Plasma Surface Engineering

Sodium Alginate/Zwitterionic Polymer Gel Electrolyte for Integrated All‐Solid‐State Supercapacitors

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