03415nas a2200289 4500008004100000245009600041210006900137260000800206490000600214520247900220653001402699653003902713653002502752653001602777653002402793653003602817653001202853653002202865653002302887100001402910700001402924700001902938700001402957700001902971700001402990856012103004 2017 eng d00aNutty carbon: morphology replicating hard carbon from walnut shell for na ion battery anode0 aNutty carbon morphology replicating hard carbon from walnut shel cJUL0 v23 a
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Efficient Na ion intercalation/deintercalation in the semigraphitic lattice of a hard carbon derived from the walnut shell is demonstrated. High-temperature (1000 °C) pyrolysis of walnut shells under an inert atmosphere yields a hard carbon with a low surface area (59 m2 g–1) and a large interplanar c axis separation of 0.39–0.36 nm as compared to 0.32 nm for graphite, suitable for Na ion intercalation/deintercalation. A stable reversible capacity of 257 mAh g–1 is observed at a current density of 50 mA g–1 for such nutshell-derived carbon (NDC) with an impressive rate performance. No loss of electrochemical performance is observed for high current cycling (100 mA g–1 → 2 A g–1 → 100 mA g–1). Additionally, the NDC shows remarkably stable electrochemical performance up to 300 charge–discharge cycles at 100 mA g–1 with a minimal drop in capacity.

10aBatteries10aBiological and Medicinal chemistry10aBiological materials10adiffraction10aElectric Properties10aElectrode-electrolyte interface10aspectra10aSurface structure10aThermal properties1 aWahid, M.1 aGawli, Y.1 aPuthusseri, D.1 aKumar, A.1 aShelke, M., V.1 aOgale, S. uhttps://library.ncl.res.in/content/nutty-carbon-morphology-replicating-hard-carbon-walnut-shell-na-ion-battery-anode02210nas a2200277 4500008004100000022001300041245014900054210006900203260000900272300001600281490000600297520121800303653003101521653003401552653001801586653003701604653001301641653001301654653002201667653002201689653001501711653002301726100002201749700003101771856013001802 2018 eng d a2470134300aSurface modification of polymers for tissue engineering applications: arginine acts as a sticky protein equivalent for viable cell accommodation0 aSurface modification of polymers for tissue engineering applicat cAPR  a4242–42510 v33 a

Hydrophobic polymers, for their favorable mechanical properties, are a popular choice as permanent bioimplants. These materials remain absolutely bioinert for years, but throw up challenges when it comes to fast integration with healthy tissue. Addressing this, herein, we present a surface-modification technique of converting the hydrophobic surface of a polymeric film into a hydrophilic one using a layer-by-layer assembly process involving gold nanoparticles and small molecules like amino acids. These films showed much improved animal cell (murine fibroblast) adherence properties compared to commercially available tissue culture plates. Moreover, arginine-modified films exhibited a nearly equivalent cell viability compared to the films modified with the natural extracellular matrix component fibronectin. The surface hydrophilicity and roughness of our novel film were characterized by contact angle measurement and atomic force microscopy. Cell counting, fluorescence microscopy, cell viability, and collagen estimation assay were employed to demonstrate that our film favored a much improved cell adherence, and accommodation in comparison to the commercially available tissue culture plates.

10aCell and Molecular biology10aExtracellular matrix proteins10aNanoparticles10aPhysical and chemical properties10aPolymers10aProteins10aSurface structure10aSurface treatment10aThin films10atissue engineering1 aSengupta, Poulomi1 aPrasad, Bhagavatula, L. V. uhttps://library.ncl.res.in/content/surface-modification-polymers-tissue-engineering-applications-arginine-acts-sticky-protein