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B12-Dependent Protein Oligomerization Facilitates Layer-by-Layer Growth of Photo/Thermal Responsive Nanofilms
10.1021/acsmacrolett.8b00147 2018-04-09 We report the robust growth of an entirely protein-based, photo- and thermoresponsive Layer-by-Layer nanofilm using genetically encoded SpyTag/SpyCatcher chemistry. The process was facilitated by AdoB12-induced tetramerization of photoreceptor proteins. Prote... |
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Double-Cross-Linked Hydrogel Strengthened by UV Irradiation from a Hyperbranched PEG-Based Trifunctional Polymer
10.1021/acsmacrolett.8b00138 2018-04-09 Conventional wound healing materials suffer from low efficiency, poor mechanical strength, and nontunable properties. Responsive hydrogels are appealing candidates for tissue engineering. Herein, we developed a double-cross-linked hydrogel system composed of ... |
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Relationship between Segmental Dynamics Measured by Quasi-Elastic Neutron Scattering and Conductivity in Polymer Electrolytes
10.1021/acsmacrolett.8b00159 2018-04-06 Quasi-elastic neutron scattering experiments on mixtures of poly(ethylene oxide) and lithium bis(trifluoromethane)sulfonimide salt, a standard polymer electrolyte, led to the quantification of the effect of salt on segmental dynamics in the 1–10 Å length scal... |
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Grafting Density Impacts Local Nanoscale Hydrophobicity in Poly(ethylene glycol) Brushes
10.1021/acsmacrolett.8b00004 2018-04-05 Accumulated single-molecule observations of a fluorescent solvatochromic probe molecule were found to provide detailed local information about nanoscale hydrophobicity in polymer brushes. Using this approach, we showed that local hydrophobicity in poly(ethyle... |
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3D Printing All-Aromatic Polyimides Using Stereolithographic 3D Printing of Polyamic Acid Salts
10.1021/acsmacrolett.8b00126 2018-04-04 Polyamic acid (PAA) salts are amenable to photocuring additive manufacturing processes of all-aromatic polyimides. Due to an all-aromatic structure, these high-performance polymers are exceptionally chemically and thermally stable but are not conventionally p... |
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Detection of Surface Enrichment Driven by Molecular Weight Disparity in Virtually Monodisperse Polymers
10.1021/acsmacrolett.7b00993 2018-04-02 The preference for a shorter chain component at a polymer blend surface impacts surface properties key to application-specific performance. While such segregation is known for blends containing low molecular weight additives or systems with large polydispersi... |
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Vitrimeric Silicone Elastomers Enabled by Dynamic Meldrum’s Acid-Derived Cross-Links
10.1021/acsmacrolett.8b00166 2018-03-30 Current vitrimer technology uses only a handful of distinct reactions for cross-linking. New dynamic reactions can diversify vitrimer functionality and properties. In this paper, reversible cross-links formed by conjugate addition–elimination of thiols with a... |
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Efficient Protein Encapsulation within Thermoresponsive Coacervate-Forming Biodegradable Polyesters
10.1021/acsmacrolett.8b00118 2018-03-27 Presented here is a novel method for encapsulating proteins into biodegradable, thermoresponsive coacervate-type polyesters. Bovine serum albumin (BSA) was efficiently incorporated into coacervate droplets via a simple thermoresponsive encapsulation mechanism... |
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Wavelength-Selective Coupling and Decoupling of Polymer Chains via Reversible [2 + 2] Photocycloaddition of Styrylpyrene for Construction of Cytocompatible Photodynamic Hydrogels
10.1021/acsmacrolett.8b00099 2018-03-26 Reversible photocycloaddition reactions have previously been employed in chemical cross-linking for the preparation of biomaterial scaffolds. However, the processes require activation by high-energy UV light, rendering them unsuitable for modification in biol... |
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Scalable Synthesis of Multivalent Macromonomers for ROMP
10.1021/acsmacrolett.8b00201 2018-03-26 The polymerization of functional monomers provides direct access to functional polymers without need for postpolymerization modification; however, monomer synthesis can become a bottleneck of this approach. New methods that enable rapid installation of functi... |