Fabrication and characterization of temperature-, pH- and magnetic-field-sensitive organic/inorganic hybrid poly (ethylene glycol)-based hydrogels

Fabrication and photocatalytic behavior of a novel nanocomposite hydrogels containing Fe‐octacarboxylic acid phthalocyanine

“…It can be seen that the absorbance peaks at about 2800 and 1420 cm −1 correspond to the stretching and bending vibrations of CH in the structure of PMOA. The peaks observed at 1729 and 1156 cm −1 are attributed to the stretching vibrations CO and CO, respectively, while the peaks at 1030 and 979 cm −1 correspond to the stretching vibration of SiOSi . The absorbance peak at 586 cm −1 can be ascribed to the characteristic peak of Fe 3 O 4 .…”

“…2–(2‐Methoxyethoxy) ethyl methacrylate (MEO 2 MA, 97%) was purchased from TCI Chemical Co. Tokyo, Japan. Oligo(ethylene glycol) methyl ether methactylate (OEGMA, average M n = 475, the number of EO units 8–9) was purchased from Sigma‐Aldrich Co. Acrylic acid (AAc), sodium hydroxide (NaOH), potassium persulfate (K 2 S 2 O 8 ), sodium hydrogen sulfite (NaHSO 3 ), and RhB were purchased from Sinopharm Chemical Reagent Co. Ltd. FeOCAP and magnetic attapulgite (MAT) were prepared by our research group. All these reagents were used as received.…”

“…Referring to our previous work, the multifunctional FeOCAP/MAT‐PMOA photoresponsive hydrogels were prepared by in situ free radical polymerization in ethanol solution. First, FeOCAP/MAT with certain weight was dispersed in the ethanol solution under ultrasonic vibration for 1.5 h. Then, the monomers of MEO 2 MA, OEGMA, and AAc were added into the FeOCAP/MAT suspension and then were allowed to mix under ultrasonic vibration for 30 min.…”

Preparation of Fe3O4/attapulgite/polyvinylalcohol composites and its treatment for methyl orange in neutral condition

“…Figure 1A shows that attapulgites are just as the long rod and Fe 3 Figure 1B shows that Fe 3 O 4 /attapulgite/PVA composites are flake shape. The reason is the existence of PVA that can bonds with attapulgite, so attapulgites connect to each other through PVA, and forms the flake shape, the conclusion just as the figures in the literature [12]. To further study the composition of Fe 3 O 4 /attapulgite/PVA, the samples are characterized by XRD.…”

Nanocomposite Hydrogels and Their Applications in Tissue Engineering

“…A smart multifunctional nanocomposite hydrogel that has magnetic field responsive properties was described by Chen et al This NC hydrogel was prepared using poly (2‐(2‐methoxyethoxy) ethylmethacrylate‐ co‐ oligo (ethylene glycol) methacrylate‐ co ‐acrylic acid) (PMOA) and magnetic attapulgite/iron oxide (AT–Fe 3 O 4 ) nanoparticles . Interestingly, the PMOA/AT–Fe 3 O 4 NC hydrogel showed better supermagnetic properties than AT–Fe 3 O 4 itself.…”