Facile synthesis of thermo-responsive nanogels less than 50 nm in diameter via soap- and heat-free precipitation polymerization

Wei, Jinguang; Yu, Hailiang; Liu, Hongzhi; Du, Chungui; Zhou, Zhongxi; Huang, Qiuli; Yao, Xiaoling

doi:10.1007/s10853-018-2495-x

Cited by 27 publications

(17 citation statements)

References 35 publications

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“…The concentration of SDS was kept constant at 0.5 mg mL −1 for both preparations; this was above the critical aggregation concentration for pNIPAm-SDS complex when preparing nanogels. 38,39 In addition, this concentration ensured that the polydispersity remained low 26,27 and uniform nano-sized particles could be obtained 25 (Table 1).…”

Section: Polymer Chemistry Papermentioning

confidence: 98%

“…21 In the case of homogeneous polymerisation, the synthesis is performed either in aprotic solvents, such as DMSO 24 or in water (at room temperature). 25,26 Literature data frequently report information on polymer compositions; however, the effect of synthetic protocols on particle structures is not often discussed. The use of different synthetic methodologies raises the question of whether the same formulation can result in different structures and properties.…”

Section: Introductionmentioning

confidence: 99%

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Effect of heterogeneous and homogeneous polymerisation on the structure of pNIPAm nanogels

et al. 2021

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Section: Polymer Chemistry Papermentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Effect of heterogeneous and homogeneous polymerisation on the structure of pNIPAm nanogels

et al. 2021

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“…This led to the initiation of polymerization of NIPAM in the presence of an MBA. The nanogel displayed distinct thermoresponsive properties (Wei et al, 2018).…”

Section: Precipitation Polymerizationmentioning

confidence: 99%

Temperature and pH-responsive nanogels as intelligent drug delivery systems: A comprehensive review

Jha¹,

Rama²,

Ladani³

et al. 2021

J Appl Pharm Sci

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With the advancement of technology and the evolution of modern healthcare systems, the focus is shifting from conventional drug delivery vehicles to novel, nanosized carriers. Nanogels are an example of such nanosized drug delivery systems that have been researched at length. They can be designed to be sensitive to a multitude of physical and chemical stimuli and this endows them with the capability to deliver the drugs they carry in a site-specific manner. These intelligent drug delivery systems are biocompatible and capable of loading copious quantities of the drug. pH is a major chemical property and temperature is a major physical property of a biological system. So nanogels responsive to either pH or temperature or a combination of both, possess immense biomedical potential. This review encompasses synthetic techniques and evaluation tests to confirm the responsiveness of single pH-responsive nanogels and thermoresponsive nanogels as well as dual pH/thermoresponsive nanogels. A closer look is also taken at their biomedical applications.

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“…Acrylic acid (AAc) is a hydrophilic monomer containing carboxyl groups, which have strong complexation to Ag + (Hu et al 2014). Therefore, with NIPAm and AAc as the hydrogel matrix and PVP as the protective agent, the authors prepared a novel composite hydrogel via the free radical polymerization method (Wei et al 2016(Wei et al , 2018Huang et al 2019), and evaluated the addition amount of AAc in terms of the composite hydrogel particle size, dispersion performance, and bamboo antimold properties. This preparation method has good anti-mold properties due to the addition of NIPAm/AgNPs and should provide a theoretical reference compound for antibacterial hydrogel production.…”

Section: Introductionmentioning

confidence: 99%

Preparation of uniformly dispersed N-isopropylacryl-amide/acrylic acid/nanosilver composite hydrogel and its anti-mold properties

Peng

Yu²,

et al. 2020

BioRes

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To overcome the agglomeration tendency of nanosilver composite hydrogels and to improve their anti-mold properties, a method of preparing N-isopropylacrylamide/acrylic acid/nanosilver composite hydrogel was developed using the free radical polymerization method. The composite hydrogel was characterized via infrared spectroscopy, dynamic light scattering, transmission electron microscopy, and X-ray photoelectron spectroscopy in order to explore the effects of the acrylic acid content on particle size and dispersion properties of the composite hydrogels. The elemental composition, microstructure, and anti-mold properties of the bamboo strips treated with the composite hydrogel were also determined. The results showed that the composite hydrogel prepared using the novel method described in this study had good dispersity. Composite hydrogels with the smallest particle size and optimized dispersion were produced when AAc concentration was 0.64 µL/mL. The composite hydrogel effectively filled and covered the bamboo cells after treatment. Moreover, it displayed good anti-mold properties as well as retaining the color of the bamboo.

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Facile synthesis of thermo-responsive nanogels less than 50 nm in diameter via soap- and heat-free precipitation polymerization

Cited by 27 publications

References 35 publications

Effect of heterogeneous and homogeneous polymerisation on the structure of pNIPAm nanogels

Effect of heterogeneous and homogeneous polymerisation on the structure of pNIPAm nanogels

Temperature and pH-responsive nanogels as intelligent drug delivery systems: A comprehensive review

Preparation of uniformly dispersed N-isopropylacryl-amide/acrylic acid/nanosilver composite hydrogel and its anti-mold properties

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