Iridescent Cellulose Nanocrystal Films Modified with Hydroxypropyl Cellulose.


:The introduction of polymers into a chiral nematic cellulose nanocrystal (CNC) matrix allows for the tuning of optical and mechanical properties, enabling the development of responsive photonic materials. In this study, we explored the incorporation of hydroxypropyl cellulose (HPC) into a CNC film prepared by slow evaporation. In the composite CNC/HPC thin films, the CNCs adopt a chiral nematic structure, which can selectively reflect certain wavelengths of light to yield a colored film. The color could be tuned across the visible spectrum by changing the concentration or molecular weight of the HPC. Importantly, the composite films were more flexible than pure CNC films with up to a ten-fold increase in elasticity and a decrease in stiffness and tensile strength of up to six times and four times, respectively. Surface modification of the films with methacrylate groups increased the hydrophobicity of the films, and therefore, the water stability of these materials was also improved.






Walters CM,Boott CE,Nguyen TD,Hamad WY,MacLachlan MJ




Has Abstract


2020-03-09 00:00:00












  • Modular Polymer Antigens To Optimize Immunity.

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    pub_type: 杂志文章


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    更新日期:2019-12-09 00:00:00

  • Ionic Polypeptide Polymers with Unusual β-Sheet Stability.

    abstract::Incorporating charged amino acid side chains in polypeptide polymer backbones to improve solubility usually leads to reduced secondary structuring. Here we show that highly water soluble (>15 mg.mL-1) β-sheets can be obtained via nucleotide monophosphate grafting onto simple poly(γ-propargyl- L-glutamate) backbone. Th...


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    authors: Nguyen M,Stigliani JL,Bijani C,Verhaeghe P,Pratviel G,Bonduelle C

    更新日期:2018-10-08 00:00:00

  • From micelles to fibers: balancing self-assembling and random coiling domains in pH-responsive silk-collagen-like protein-based polymers.

    abstract::We study the self-assembly of genetically engineered protein-based triblock copolymers consisting of a central pH-responsive silk-like middle block (S(H)n, where S(H) is a silk-like octapeptide, (GA)3GH and n is the number of repeats) flanked by hydrophilic random coil outer blocks (C2). Our previous work has already ...


    pub_type: 杂志文章


    authors: Beun LH,Storm IM,Werten MW,de Wolf FA,Cohen Stuart MA,de Vries R

    更新日期:2014-09-08 00:00:00

  • Plasma-enhanced synthesis of bioactive polymeric coatings from monoterpene alcohols: a combined experimental and theoretical study.

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    pub_type: 杂志文章


    authors: Bazaka K,Jacob MV,Truong VK,Wang F,Pushpamali WA,Wang JY,Ellis AV,Berndt CC,Crawford RJ,Ivanova EP

    更新日期:2010-08-09 00:00:00

  • Multiblock copolymers of L-lactide and trimethylene carbonate.

    abstract::Sequential copolymerizations of trimethylene carbonate (TMC) and l-lactide (LLA) were performed with 2,2-dibutyl-2-stanna-1,3-oxepane as a bifunctional cyclic initiator. The block lengths were varied via the monomer/initiator and via the TMC/l-lactide ratio. The cyclic triblock copolymers were transformed in situ into...


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    authors: Pospiech D,Komber H,Jehnichen D,Häussler L,Eckstein K,Scheibner H,Janke A,Kricheldorf HR,Petermann O

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    pub_type: 杂志文章


    authors: Raspanti M,Viola M,Sonaggere M,Tira ME,Tenni R

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  • Surface-active antifungal polyquaternary amine.

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    pub_type: 杂志文章


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    pub_type: 杂志文章


    authors: Hassenkam T,Gutsmann T,Hansma P,Sagert J,Waite JH

    更新日期:2004-07-01 00:00:00

  • Self-cross-linking polyelectrolyte complexes for therapeutic cell encapsulation.

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    pub_type: 杂志文章


    authors: Mazumder MA,Shen F,Burke NA,Potter MA,Stöver HD

    更新日期:2008-09-01 00:00:00

  • Self-Assembly of Cellulose in Super-Cooled Ionic Liquid under the Impact of Decelerated Antisolvent Infusion: An Approach toward Anisotropic Gels and Aerogels.

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    pub_type: 杂志文章


    authors: Plappert SF,Nedelec JM,Rennhofer H,Lichtenegger HC,Bernstorff S,Liebner FW

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  • Novel biodegradable aliphatic poly(butylene succinate-co-cyclic carbonate)s bearing functionalizable carbonate building blocks: II. Enzymatic biodegradation and in vitro biocompatibility assay.

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    pub_type: 杂志文章


    authors: Yang J,Tian W,Li Q,Li Y,Cao A

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  • A Generic Polymer-Protein Ligation Strategy for Vaccine Delivery.

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    pub_type: 杂志文章


    authors: Lybaert L,Vanparijs N,Fierens K,Schuijs M,Nuhn L,Lambrecht BN,De Geest BG

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    abstract::Most biopolymers exist in a plasticized state, whether it is naturally with water or unnaturally with glycerol or other suitable polyol, to make a flexible material. We have found that the extent to which a biopolymer can be plasticized is dependent on its molecular and higher order structures outside of simply molecu...


    pub_type: 杂志文章


    authors: Athamneh AI,Griffin M,Whaley M,Barone JR

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  • An Efficient, Regioselective Pathway to Cationic and Zwitterionic N-Heterocyclic Cellulose Ionomers.

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    pub_type: 杂志文章


    authors: Liu S,Liu J,Esker AR,Edgar KJ

    更新日期:2016-02-08 00:00:00

  • In depth study of a new highly efficient raw starch hydrolyzing α-amylase from Rhizomucor sp.

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    authors: Tawil G,Viksø-Nielsen A,Rolland-Sabaté A,Colonna P,Buléon A

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    authors: Chen MC,Ling MH,Lai KY,Pramudityo E

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  • A Mössbauer study of the interaction of chitosan and D-glucosamine with iron and its relevance to other metalloenzymes.

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    authors: Bhatia SC,Ravi N

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  • Nanogel formation consisting of DNA and poly(amido amine) dendrimer studied by static light scattering and atomic force microscopy.

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    pub_type: 杂志文章


    authors: Mitra A,Imae T

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  • Tunable protein release from acetalated dextran microparticles: a platform for delivery of protein therapeutics to the heart post-MI.

    abstract::The leading cause of death in the United States is cardiovascular disease. The majority of these cases result from heart failure post-myocardial infarction (MI). We present data providing evidence for use of acetalated dextran (AcDex) microparticles as a delivery vehicle for therapeutics to the heart post-MI. We harne...


    pub_type: 杂志文章


    authors: Suarez S,Grover GN,Braden RL,Christman KL,Almutairi A

    更新日期:2013-11-11 00:00:00

  • Structure and morphology changes during in vitro degradation of electrospun poly(glycolide-co-lactide) nanofiber membrane.

    abstract::Electrospun poly(glycolide-co-lactide) (PLA10GA90, LA/GA ratio 10/90) biodegradable nanofiber membranes possessed very high surface area to volume ratios and were completely noncrystalline with a relatively lowered glass transition temperature. These characteristics led to very different structure, morphology, and pro...


    pub_type: 杂志文章


    authors: Zong X,Ran S,Kim KS,Fang D,Hsiao BS,Chu B

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  • Spirocyclic Acetal-Modified Dextran as a Flexible pH-Sensitive Solubility-Switching Material.

    abstract::Bioresponsive polymers can enable the development of more effective drug delivery vehicles and medical materials. Acetal-modified polysaccharides allow pH-triggered solubility switching in a versatile and effective manner, but prior work has been limited to a combination of acyclic alkoxyisopropyl and cyclic isopropyl...


    pub_type: 杂志文章


    authors: Graham ET,Broaders KE

    更新日期:2019-05-13 00:00:00

  • Self-Standing Nanocellulose Janus-Type Films with Aldehyde and Carboxyl Functionalities.

    abstract::Nanocellulose-based self-standing films are becoming a substrate for flexible electronics, diagnostics, and sensors. Strength and surface chemistry are vital variables for these film-based endeavors, the former is one of the assets of nanocellulose. To contribute to the latter, nanocellulose films are tuned with a sid...


    pub_type: 杂志文章


    authors: Nypelö T,Amer H,Konnerth J,Potthast A,Rosenau T

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  • Intrinsically disordered mollusk shell prismatic protein that modulates calcium carbonate crystal growth.

    abstract::The formation of calcite prism architecture in the prismatic layer of the mollusk shell involves the participation of a number of different proteins. One protein family, Asprich, has been identified as a participant in amorphous calcium carbonate stabilization and calcite architecture in the prismatic layer of the mol...


    pub_type: 杂志文章


    authors: Ndao M,Keene E,Amos FF,Rewari G,Ponce CB,Estroff L,Evans JS

    更新日期:2010-10-11 00:00:00

  • Amphiphilic methoxy poly(ethylene glycol)-b-poly(ε-caprolactone)-b-poly(2-dimethylaminoethyl methacrylate) cationic copolymer nanoparticles as a vector for gene and drug delivery.

    abstract::We studied methoxy poly(ethylene glycol)-b-poly(ε-caprolactone)-b-poly(2-dimethylaminoethyl methacrylate) (mPEG-b-PCL-b-PDMAEMA) nanoparticles as the codelivery vector of hydrophobic drug and pDNA by employing dynamic light scattering (DLS), ζ potential, transmission electron microscopy (TEM), gel retardation assay, a...


    pub_type: 杂志文章


    authors: Yue X,Qiao Y,Qiao N,Guo S,Xing J,Deng L,Xu J,Dong A

    更新日期:2010-09-13 00:00:00

  • Polymer coiled-coil conjugates: potential for development as a new class of therapeutic "molecular switch".

    abstract::Polymer therapeutics, including polymeric drugs and polymer-protein conjugates, are clinically established as first-generation nanomedicines. Knowing that the coiled-coil peptide motif is fundamentally important in the regulation of many cellular and pathological processes, the aim of these studies was to examine the ...


    pub_type: 杂志文章


    authors: Deacon SP,Apostolovic B,Carbajo RJ,Schott AK,Beck K,Vicent MJ,Pineda-Lucena A,Klok HA,Duncan R

    更新日期:2011-01-10 00:00:00

  • Endothelial Cell Migration on Poly(ε-caprolactone) Nanofibers Coated with a Nanohybrid Shish-Kebab Structure Mimicking Collagen Fibrils.

    abstract::Regulating cell migration dynamics is of significance in tissue engineering and regenerative medicine. A 3D scaffold was created to provide various topographies based on a poly(ε-caprolactone) (PCL) self-induced nanohybrid shish-kebab structure, which consisted of aligned PCL nanofibers and spaced PCL crystal lamellae...


    pub_type: 杂志文章


    authors: Guo X,Wang X,Li X,Jiang YC,Han S,Ma L,Guo H,Wang Z,Li Q

    更新日期:2020-03-09 00:00:00

  • Viscoelastic behavior of cellulose acetate in a mixed solvent system.

    abstract::The effect of increasing water composition on the rheological and microstructural behavior of a ternary cellulose acetate (CA)/N,N-dimethylacetamide (DMA)/water system is examined. Addition of water to the CA/DMA system results in enhanced steady shear viscosity and dynamic viscoelastic properties and ultimately to ph...


    pub_type: 杂志文章


    authors: Appaw C,Gilbert RD,Khan SA,Kadla JF

    更新日期:2007-05-01 00:00:00

  • PEG-modified carbon nanotubes in biomedicine: current status and challenges ahead.

    abstract::Since their discovery at the end of the previous millennium, carbon nanotubes (CNTs) have been the object of thousands of papers describing their applications in fields ranging from physics to electronics, photonics, chemistry, biology, and medicine. The development of chemical approaches to modify their graphitic sid...


    pub_type: 杂志文章,评审


    authors: Bottini M,Rosato N,Bottini N

    更新日期:2011-10-10 00:00:00

  • Electrospinning Bombyx mori silk with poly(ethylene oxide).

    abstract::Electrospinning for the formation of nanoscale diameter fibers has been explored for high-performance filters and biomaterial scaffolds for vascular grafts or wound dressings. Fibers with nanoscale diameters provide benefits due to high surface area. In the present study we explore electrospinning for protein-based bi...


    pub_type: 杂志文章


    authors: Jin HJ,Fridrikh SV,Rutledge GC,Kaplan DL

    更新日期:2002-11-01 00:00:00

  • Well-defined homopolypeptides, copolypeptides, and hybrids of poly(l-proline).

    abstract::l-Proline is the only, out of 20 essential, amino acid that contains a cyclized substituted α-amino group (is formally an imino acid), which restricts its conformational shape. The synthesis of well-defined homo- and copolymers of l-proline has been plagued either by the low purity of the monomer or the inability of m...


    pub_type: 杂志文章


    authors: Gkikas M,Iatrou H,Thomaidis NS,Alexandridis P,Hadjichristidis N

    更新日期:2011-06-13 00:00:00