Systematic control of mesh size in hydrogels by initiated chemical vapor deposition

Yagüe, José Luis Fuentes; Gleason, Karen K.

doi:10.1039/c2sm07137a

Cited by 31 publications

(29 citation statements)

References 30 publications

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“…The measured stiffness of the p(EGDA) film is 775MPa, which is higher than the average value reported in the literature for solution‐synthesized p(EGDA). This difference has been demonstrated to arise due to reactivity differences in the two methods;30 see also Supporting Information, Section S7.…”

Section: Methodsmentioning

confidence: 99%

Deterministic Order in Surface Micro‐Topologies through Sequential Wrinkling

Yin¹,

Yagüe²,

et al. 2012

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Ordered herringbone patterns with deterministic long and short wavelengths are created using a sequential wrinkling strategy (SWS). Patterns with a prescribed zig-zag turning angle less than 90° are obtained upon sequential wrinkling of non-equi-biaxial prestrain for the first time. SWS provides a new method for measuring thin-film mechanical properties simply through the wrinkling metrology without measurement of film thickness.

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Section: Methodsmentioning

confidence: 99%

Deterministic Order in Surface Micro‐Topologies through Sequential Wrinkling

Yin¹,

Yagüe²,

et al. 2012

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“…This creates changes in the mechanical properties, protein adsorption capabilities and hydrophilicity of the material. This dynamic property is useful for many applications (i.e., biotechnology,67, 87, 94 stimuli‐responsive coatings,95, 96 sensors97, 98, 99 etc.). Some hydrogels have similar water content to human tissue and exhibit excellent biocompatibility.…”

Section: Chain Growth Polymerization: Icvdmentioning

confidence: 99%

“…Hydrogels have been deposited by iCVD (e.g., PHEMA) and they have been demonstrated to retain high swelling capability 13, 67, 75, 76, 87, 92, 94, 95, 97, 97–101. In addition, iCVD allowed in one‐step synthesis of a functionalized hydrogel with pentafluorophenyl functional groups nano‐confined on the top surface of the material (Figure 8c) 92, 100.…”

Section: Chain Growth Polymerization: Icvdmentioning

confidence: 99%

25th Anniversary Article: CVD Polymers: A New Paradigm for Surface Modifi cation and Device Fabrication

et al. 2013

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Well-adhered, conformal, thin (<100 nm) coatings can easily be obtained by chemical vapor deposition (CVD) for a variety of technological applications. Room temperature modification with functional polymers can be achieved on virtually any substrate: organic, inorganic, rigid, flexible, planar, three-dimensional, dense, or porous. In CVD polymerization, the monomer(s) are delivered to the surface through the vapor phase and then undergo simultaneous polymerization and thin film formation. By eliminating the need to dissolve macromolecules, CVD enables insoluble polymers to be coated and prevents solvent damage to the substrate. CVD film growth proceeds from the substrate up, allowing for interfacial engineering, real-time monitoring, and thickness control. Initiated-CVD shows successful results in terms of rationally designed micro- and nanoengineered materials to control molecular interactions at material surfaces. The success of oxidative-CVD is mainly demonstrated for the deposition of organic conducting and semiconducting polymers.

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“…In addition, the mesh size of the hydrogel can be tuned by systematically altering its cross-linking density -this enables selective diffusion of species through the polymer network. [ 40 ] For example, fl uorescein, which molecular size is about 1 nm, was released from a hydrogel layer with a mesh size of 2 nm, as indicated by the presence of the fl uorescein emission peak at 490 nm in the UV-vis spectrum (Figure 2 b). Conversely, no release of fl uorescein was observed for a hydrogel sample with a mesh size of 0.5 nm.…”

Section: Tailored Surfaces and Interfacesmentioning

confidence: 99%

Section: Selective Permeationmentioning

confidence: 99%

Chemical Vapor Deposition for Solvent‐Free Polymerization at Surfaces

Yagüe

Coclite

Petruczok

et al. 2012

Macro Chemistry & Physics

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Chemical vapor deposition (CVD) methods are a powerful technology for engineering surfaces. When CVD is combined with the richness of organic chemistry, the resulting polymeric coatings, deposited without solvents, represent an enabling technology in many different fi elds of application. This article focuses on initiated chemical vapor deposition (iCVD), a new technique that utilizes benign reaction conditions to yield conformal and functional polymer thin fi lms. The latest achievements in coating surfaces and 3D substrates with functional materials, and the use of the technique for biotechnology and selective permeation applications are reviewed, and future directions for iCVD technology are discussed.

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Systematic control of mesh size in hydrogels by initiated chemical vapor deposition

Cited by 31 publications

References 30 publications

Deterministic Order in Surface Micro‐Topologies through Sequential Wrinkling

Deterministic Order in Surface Micro‐Topologies through Sequential Wrinkling

25th Anniversary Article: CVD Polymers: A New Paradigm for Surface Modifi cation and Device Fabrication

Chemical Vapor Deposition for Solvent‐Free Polymerization at Surfaces

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