Facile and large scale in situ synthesis of the thermal responsive fluorescent SiNPs/PNIPAM hydrogels

Zhang, Xiaoyan; Yan, Zheng; Liu, Chunhua; Wang, Pinghua; Zhu, Yuan‐Yuan

doi:10.1039/c6ra09534h

Cited by 12 publications

(8 citation statements)

References 45 publications

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“…Deconvoluted high-resolution XPS of the N 1s peak in the conjugated samples revealed the presence of C-N, -NH-, C-NH 2 , and N-H attributable to signals between 398.3 and 401.5 eV. The bond signals closely matched the typical values for collagen, corresponding with both the literature [32][33][34] and the Thermo Scientific XPS library.…”

Section: Discussionsupporting

confidence: 60%

Biomimetic Properties of Force-Spun PHBV Membranes Functionalised with Collagen as Substrates for Biomedical Application

et al. 2019

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The force-spinning process parameters (i.e., spin speed, spinneret-collector distance, and polymer concentration), optimised and characterised in previous work by this group, allowed the rapid fabrication of large quantities of high surface area poly(3-hydroxybutyric acid-co-3-hydroxyvaleric acid) (PHBV) polymeric fibre membranes. This paper examined the potential application for force-spun PHBV fibres functionalised with type I collagen for tissue regeneration applications. PHBV fibre scaffolds provide a biologically suitable substrate to guide the regeneration of dermal tissues, however, have poor cellular adhesion properties. The grafting of collagen type-I to PHBV fibres demonstrated improved cell adhesion and growth in Neo-NHDF (neonatal human dermal fibroblasts) fibroblasts. The examination of fibre morphology, thermal properties, collagen content, and degradability was used to contrast the physicochemical properties of the PHBV and PHBV-Collagen fibres. Biodegradation models using phosphate buffered saline determined there was no appreciable change in mass over the course of 6 weeks; a Sirius Red assay was performed on degraded samples, showing no change in the quantity of collagen. Cell metabolism studies showed an increase in cell metabolism on conjugated samples after three and 7 days. In addition, in vitro cytocompatibility studies demonstrated superior cell activity and adhesion on conjugated samples over 7 days.

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Section: Discussionsupporting

confidence: 60%

Biomimetic Properties of Force-Spun PHBV Membranes Functionalised with Collagen as Substrates for Biomedical Application

et al. 2019

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“…These hydrogels exhibit thermal-sensitive phase transition properties, with the fluorescence intensity decreasing as the temperature increases. The integration of F-SiNPs into the PNIPAM hydrogel matrix allows for temperature-sensitive fluorescence changes, with the phase transition being both reversible and repeatable, highlighting their suitability for thermal sensing and imaging applications [18].…”

Section: Smart and Responsive Materialsmentioning

confidence: 99%

“…The foundation of these hydrogels often relies on synthetic polymers, such as poly(Nisopropylacrylamide), polyacrylamide, and poly(vinyl alcohol), which are sometimes modified to introduce specific features like thermal sensitivity and better mechanical properties [7,8,11,[15][16][17][18]. Crosslinking methods are refined to customize hydrogels' properties, employing techniques such as EDC/NHS, disulfide bond formation, and multicrosslinker agents to adjust their elasticity and stability [5,19,20].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Hydrogels with Quantum Dots

Omidian,

Wilson

2024

J. Compos. Sci.

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This manuscript explores the interdisciplinary integration of quantum dot–hydrogel composites and smart materials and their applications across a spectrum of fields, including biomedical engineering, environmental sensing, and energy harvesting. It covers the synthesis of novel materials like fluorescent hydrogel nanocomposites that display enhanced chemical stability, mechanical strength, and thermal resistance, highlighting their utility in environmental monitoring and catalysis. In the biomedical sector, innovations include hydrogel composites for targeted drug delivery and advanced therapies such as photothermal DNA hydrogels for tumor treatment. This review also discusses the application of these materials in imaging, diagnostics, and the development of smart sensors capable of detecting various biological and environmental changes. Its scope further extends to optoelectronics and the design of energy-efficient systems, underscoring the versatile functionalities of hydrogels in modern technological applications. Challenges remain in scaling up these technologies for commercial use and ensuring their long-term stability and safety, necessitating future research focused on sustainable, scalable solutions that can be integrated into existing systems.

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“…In previous work, a series of organic-inorganic hybrid hydrogels displayed enhanced mechanical properties and additional physical functions were prepared via introducing silicon nanoparticles or silver nanowires into the polymer networks. [61][62][63] Whereas the interactions between organic and inorganic components are static and cannot respond to external stimuli. To endow the dynamic properties in hydrogels, we design and prepare a new type of DN hydrogels from the alginate and photopolymerized anthracene networks (PEG-Ant/SA-DNG).…”

Section: Introductionmentioning

confidence: 99%

Fabrication of PEG‐anthracene/alginate double‐network hydrogels and their application in photolithography

Ma,

Song,

Yang

et al. 2023

J of Applied Polymer Sci

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The development of double‐network hydrogels provides a feasible strategy to improve the mechanical properties of pure organic hydrogels. We report a new type of dynamic double‐network hydrogels based on alginate and four‐armed PEG bearing anthracene at the terminal group. The ductile network is constructed through the photopolymerization of four‐armed PEG‐anthracene using the dimerization of terminal anthracene as the cross‐linking point, and alginate as the brittle network. The doping of alginate improves the precursor viscosity of solution and slows its fluidity. In particular, the inclusive metal cations endow the hydrogels with good conductivity. As the demonstration toward photolithography, the letter patterns and a parallel circuit are fabricated through the mask exposure method. By employing selective photo‐crosslinking, their shapes and patterns can be precisely controlled. Owing to the photo‐responsive features of the PEG‐anthracene network, the hydrogels also behave dynamically mechanical and shape‐memory properties via switching the irradiation wavelength. In addition, the water retention capacity can be improved by adding glycerol. This work demonstrates that anthracene is an effective photopolymerization unit in constructing dynamic double‐network hydrogels that show potential applications in smart soft materials.

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Facile and large scale in situ synthesis of the thermal responsive fluorescent SiNPs/PNIPAM hydrogels

Abstract: A new type of F-SiNPs/poly(N-isopropylacrylamide) (F-SiNPs/PNIPAM) hydrogel was prepared byin situpolymerization. The composite hydrogels display visible thermal-sensitive phase transition properties.

Cited by 12 publications

References 45 publications

Biomimetic Properties of Force-Spun PHBV Membranes Functionalised with Collagen as Substrates for Biomedical Application

Biomimetic Properties of Force-Spun PHBV Membranes Functionalised with Collagen as Substrates for Biomedical Application

Enhancing Hydrogels with Quantum Dots

Fabrication of PEG‐anthracene/alginate double‐network hydrogels and their application in photolithography

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