Radical polymerization as a versatile tool for surface grafting of thin hydrogel films

2020 ◽  
Vol 11 (27) ◽  
pp. 4355-4381 ◽  
Author(s):  
Farzad Seidi ◽  
Weifeng Zhao ◽  
Huining Xiao ◽  
Yongcan Jin ◽  
Mohammad Reza Saeb ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Main Part ◽  
Surface Grafting ◽  
Solid Substrates ◽  
Versatile Tool ◽  
Thin Hydrogel Films ◽  
Hydrogel Films

The surface of solid substrates is the main part that interacts with the environment.

scholarly journals Infrared Nanospectroscopy of Air-Sensitive Biological Substrates Protected by Thin Hydrogel Films

2020 ◽  
Vol 119 (8) ◽  
pp. 1474-1480
Author(s):  
Alexander P. Fellows ◽  
Mike T.L. Casford ◽  
Paul B. Davies
Keyword(s):  
Biological Substrates ◽  
Thin Hydrogel Films ◽  
Hydrogel Films

Characterization of electrospun polylactide nanofibers modified via atom transfer radical polymerization

2020 ◽  
pp. 152808372093038 ◽  
Author(s):  
Muhammad Mushtaq ◽  
Rahim Jindani ◽  
Amjad Farooq ◽  
Xin Li ◽  
Hina Saba ◽  
...  
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Photoelectron Spectroscopy ◽  
Polymer Chains ◽  
Surface Grafting ◽  
Atom Transfer ◽  
X Ray ◽  
Polymerization Method ◽  
Scanning Electron

Polylactic acid-based membranes received considerable attention due to its novel biocompatibility, renewability, and biodegradability. In this study, PLA electrospun nanofibrous membrane was prepared and 2-dimethylaminoethyl methacrylate (DMAEMA) was used as a monomer for surface grafting of polymer chains via the atom transfer radical polymerization method. Then the PLA nanofibers were quaternized by using bromoethane. The characterization of poly(DMAEMA) graft PLA nanofiber (poly(DMAEMA)-g-PLA) membranes was done by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and energy dispersive X-ray spectroscopy. The results showed that the diameter of PLA nanofibers increased 15% as the concentration increased from 10% to 12% and then increased 23% as the concentration of PLA solution increased from 10% to 15%. But the regularity of average diameters is best achieved at 12% concentration.

scholarly journals Friction of Poroelastic Contacts with Thin Hydrogel Films

Langmuir ◽  
2018 ◽  
Vol 34 (33) ◽  
pp. 9617-9626 ◽  
Author(s):  
Jessica Delavoipière ◽  
Yvette Tran ◽  
Emilie Verneuil ◽  
Bertrand Heurtefeu ◽  
Chung Yuen Hui ◽  
...  
Keyword(s):  
Thin Hydrogel Films ◽  
Hydrogel Films

Specific Biochemical-to-Optical Signal Transduction by Responsive Thin Hydrogel Films Loaded with Noble Metal Nanoparticles

2010 ◽  
Vol 22 (12) ◽  
pp. 1412-1416 ◽  
Author(s):  
Ihor Tokarev ◽  
Iryna Tokareva ◽  
Venkateshwarlu Gopishetty ◽  
Evgeny Katz ◽  
Sergiy Minko
Keyword(s):  
Signal Transduction ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Optical Signal ◽  
Noble Metal Nanoparticles ◽  
Thin Hydrogel Films ◽  
Hydrogel Films

Preparation of the AOPAN-poly(HEMA) nanofibers via the atom transfer radical polymerization method and their application for laccase immobilization

2017 ◽  
Vol 48 (1) ◽  
pp. 25-37
Author(s):  
Quan Feng ◽  
Xin Li ◽  
Dingsheng Wu ◽  
Suo Liu ◽  
Mao Ye ◽  
...  
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Surface Grafting ◽  
Atom Transfer ◽  
The Novel ◽  
Initial Activity ◽  
Ph Change ◽  
Immobilized Laccase ◽  
Laccase Immobilization ◽  
Polymerization Method

AOPAN nanofibers were prepared by electrospinning and amidoxime modification, subsequently, HEMA was used as the monomers for surface grafting via atom transfer radical polymerization, followed by coordination with Cu(II) ions, thereafter, the nanofibers AOPAN-poly(HEMA)-Cu(II) were explored as the novel support for laccase immobilization. Scanning electron microscopy was used to visualize the morphology of the nanofibers, and Fourier transform infrared spectroscopy was used to provide information on the surface chemistry of nanofibers. At the same time, the optimization of immobilization conditions and the relative properties of the immobilized laccase were also studied in this paper. The study showed the largest amount of immobilized laccase while the reaction time of atom transfer radical polymerization was 4 h. The immobilized laccase showed a better stability resistance to temperature and pH change, and the initial activity of immobilized laccase retained (60.3 ± 3.1)%, that of the free laccase retained only (21.3 ± 2.1)% when stored at 4℃ for 24 days. Immobilized laccase maintained its initial activity after 10 repeated batches of 64.5%.

Tough, permeable and biocompatible microfluidic devices formed through the buckling delamination of soft hydrogel films

Lab on a Chip ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 1307-1317
Author(s):  
Riku Takahashi ◽  
Hiroki Miyazako ◽  
Aya Tanaka ◽  
Yuko Ueno ◽  
Masumi Yamaguchi
Keyword(s):  
Microfluidic Devices ◽  
High Durability ◽  
Buckling Delamination ◽  
Thin Hydrogel Films ◽  
Hydrogel Films ◽  
Pressure Driven

We demonstrate pressure-driven microfluidic devices based on buckle-delaminated architectures of thin hydrogel films, which exhibit high durability, permeability, and biocompatibility with intricate 3D morphologies.

Organocatalyzed Photo-Atom Transfer Radical Polymerization of Methacrylic Acid in Continuous Flow and Surface Grafting

2017 ◽  
Vol 38 (21) ◽  
pp. 1700423 ◽  
Author(s):  
Gijs Ramakers ◽  
Alexander Krivcov ◽  
Vanessa Trouillet ◽  
Alexander Welle ◽  
Hildegard Möbius ◽  
...  
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Methacrylic Acid ◽  
Continuous Flow ◽  
Surface Grafting ◽  
Atom Transfer
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