Mitchell Anthamatten
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View article: Adhesion of Self-Complementary, Sinusoidal Surfaces Fabricated Using Two-Photon Polymerization
Adhesion of Self-Complementary, Sinusoidal Surfaces Fabricated Using Two-Photon Polymerization Open
Microscale, pick-and-place assembly is a non-lithographic assembly method poised to impact diverse fields including flexible electronics, microfluidics and robotics. However, a major technological challenge is the need to deterministically…
View article: Two‐Photon Printing of Base‐Catalyzed Resins Involving Thiol‐Michael Network Formation
Two‐Photon Printing of Base‐Catalyzed Resins Involving Thiol‐Michael Network Formation Open
Two‐photon printing is accomplished using a photobase generator, 2‐(2‐nitrophenyl)‐propyloxycarbony tetramethyl guanidine, to locally catalyze thiol‐ene coupling between multifunctional monomers while mitigating chain‐growth polymerization…
View article: Spatiotemporal Reaction Dynamics Control in Two‐Photon Polymerization for Enhancing Writing Characteristics
Spatiotemporal Reaction Dynamics Control in Two‐Photon Polymerization for Enhancing Writing Characteristics Open
Since 2001, 3D microfabrication based on two‐photon polymerization (TPP) has drawn extensive attention and interest in biology, optics, photonics, material science, and high‐energy physics. The in‐volume fabrication capability due to the t…
View article: Shear-Assembly of Crack-Free, Mesomorphic Ceramics from Zinc Oxide Nanorods for Waveplates
Shear-Assembly of Crack-Free, Mesomorphic Ceramics from Zinc Oxide Nanorods for Waveplates Open
Mesomorphic ceramics include inorganic solids with liquid crystalline superstructures and show great promise as waveplates for high-power lasers. Waveplates require sufficiently thick, birefringent, and uniform films, and mesomorphic ceram…
View article: Aqueous Coassembly of Small TiO<sub>2</sub> Nanorods with Cellulose Nanocrystals into Transparent, Uniaxially Aligned Inorganic Thin Films for Waveplates
Aqueous Coassembly of Small TiO<sub>2</sub> Nanorods with Cellulose Nanocrystals into Transparent, Uniaxially Aligned Inorganic Thin Films for Waveplates Open
Mesomorphic ceramic films comprising uniaxially oriented short nanorods with a modest aspect ratio are desired for a wide range of applications, including waveplates requiring optical transparency and optoelectronics benefiting from enhanc…
View article: High-Temperature Enantiomeric Glassy Liquid Crystals with Exclusive Cholesteric Mesomorphism
High-Temperature Enantiomeric Glassy Liquid Crystals with Exclusive Cholesteric Mesomorphism Open
Glassy liquid crystals are a unique class of materials that can preserve their spontaneously ordered liquid crystalline state upon cooling through the glass-transition temperature. Cholesteric glassy liquid crystals (ChGLCs), in particular…
View article: Spontaneous Co-Assembly of Cellulose Nanocrystals and TiO<sub>2</sub> Nanorods Followed by Calcination to Form Cholesteric Inorganic Nanostructures
Spontaneous Co-Assembly of Cellulose Nanocrystals and TiO<sub>2</sub> Nanorods Followed by Calcination to Form Cholesteric Inorganic Nanostructures Open
Chiral nanomaterials possess unique electronic, magnetic, and optical properties that are relevant to a wide range of applications including photocatalysis, chiral photonics, and biosensing. A simple, bottom-up method to create chiral, ino…
View article: Mesomorphic Ceramic Film Fabricated via Blade Coating of a Lyotropic Nematic Liquid Crystal for High-Power Lasers
Mesomorphic Ceramic Film Fabricated via Blade Coating of a Lyotropic Nematic Liquid Crystal for High-Power Lasers Open
Mesomorphic ceramic films are fabricated over large areas by blade coating of a lyotropic nematic sol of zinc oxide nanorods. Upon calcination to remove organics, continuous monodomain films with a uniform thickness result as transparent c…
View article: Two‐Photon Printing of Shape‐Memory Microstructures and Metasurfaces via Radical‐Mediated Thiol‐Vinyl Hydrothiolation
Two‐Photon Printing of Shape‐Memory Microstructures and Metasurfaces via Radical‐Mediated Thiol‐Vinyl Hydrothiolation Open
Shape‐memory resists capable of high‐resolution curing into arbitrarily designed structures are increasingly demanded for soft robotics, optical sensors, microscale manufacturing, and biomedicine. Amorphous, shape‐memory thiol‐vinyl networ…
View article: Modulation of Interfacial Adhesion Using Semicrystalline Shape-Memory Polymers
Modulation of Interfacial Adhesion Using Semicrystalline Shape-Memory Polymers Open
Semicrystalline shape-memory elastomers are molded into deformable geometrical features to control adhesive interactions between elastomers and a glass substrate. By mechanically and thermally controlling the deformation and phase-behavior…
View article: Thermoreversible Siloxane Networks: Soft Biomaterials with Widely Tunable Viscoelasticity
Thermoreversible Siloxane Networks: Soft Biomaterials with Widely Tunable Viscoelasticity Open
Polysiloxane elastomers represent a widely utilized soft material with excellent rubber‐like elasticity, biocompatibility, and biodurability; however, there is a lack of an effective and straightforward approach to manipulate the material'…
View article: Tunability of Free Volume and Viscoelastic Damping of Thiol–Ene Networks Deep in the Glassy State
Tunability of Free Volume and Viscoelastic Damping of Thiol–Ene Networks Deep in the Glassy State Open
Model thiol-click glassy networks with low shrinkage and sharp glass transition temperatures are studied down to cryogenic temperatures to relate viscoelastic damping to changes in microscopic hole volume. Networks synthesized by polymeriz…
View article: Semicrystalline Shape‐Memory Elastomers: Effects of Molecular Weight, Architecture, and Thermomechanical Path
Semicrystalline Shape‐Memory Elastomers: Effects of Molecular Weight, Architecture, and Thermomechanical Path Open
Poly(caprolactone) networks are well‐studied shape‐memory polymers owing to their high fixity and recovery, their ability to store large amounts of elastic energy, and their tunable shape‐triggering temperature. To elucidate the influence …
View article: Thermomechanical insight into the reconfiguration of Diels–Alder networks
Thermomechanical insight into the reconfiguration of Diels–Alder networks Open
Relating thermoreversible bond kinetics to temperature and mechanical stress is essential to for the ongoing development of melt-processable, reconfigurable networks. Here, we apply the dynamic mechanical analysis methods to study the kine…
View article: Shaping shape‐memory
Shaping shape‐memory Open
Establishing active control of material shape has been a long standing theme in materials science. Polymers occupy a special niche in this effort. Unlike shape-changing alloys and piezoelectrics, polymers are lightweight, relatively inexpe…
View article: Shape Actuation via Internal Stress-Induced Crystallization of Dual-Cure Networks
Shape Actuation via Internal Stress-Induced Crystallization of Dual-Cure Networks Open
We demonstrate a single-phase, two-way shape actuator that, in the absence of an external load, elongates upon cooling and reversibly contracts upon heating. In a simple and straightforward process, a partially cross-linked, semicrystallin…