Search Results - "Pakkanen, Tuula T"

Ultrasensitive and recyclable superstructure of Au SiO2@Ag wire for surface-enhanced Raman scattering detection of thiocyanate in urine and human serum by Ankudze, Bright, Philip, Anish, Pakkanen, Tuula T.

“…Thiocyanate level in the human system can serve as a biomarker to distinguish smokers from non-smokers. Thiocyanate is a potential goitrogen, thus an accurate…”
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Polyethers as potential electron donors for Ziegler–Natta ethylene polymerization catalysts by Pirinen, Sami, Pakkanen, Tuula T.

“…[Display omitted] •Ziegler–Natta catalysts using polyethers as new electron donors.•Influence of catalyst preparation method on catalyst composition was…”
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Liquid silicone rubber (LSR)-based dry bioelectrodes: The effect of surface micropillar structuring and silver coating on contact impedance by Kaitainen, Salla, Kutvonen, Antti, Suvanto, Mika, Pakkanen, Tuula T., Lappalainen, Reijo, Myllymaa, Sami

“…•We produced and tested liquid silicone rubber based dry bioelectrodes.•We used smooth and micropatterned, uncoated and silver coated electrodes in the…”
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Self-cleaning, titanium dioxide based, multilayer coating fabricated on polymer and glass surfaces by Kasanen, Jussi, Suvanto, Mika, Pakkanen, Tuula T

“…A photocatalytic self-cleaning titanium dioxide (TiO₂) coating was prepared as a multilayer coating structure by the spin-coating method. Three substrate…”
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Unexpected cleavage of ether bonds of 1,3-dimethoxypropane in Grignard–Wurtz synthesis of a MgCl2–donor adduct by Nissinen, Ville, Pirinen, Sami, Pakkanen, Tuula T.

“…[Display omitted] •1,3-Dimethoxypropane was cleaved in Grignard–Wurtz synthesis of MgCl2–donor adduct.•A Grignard reagent, BuMgCl most likely causes the…”
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Friction and wear of periodically micro-patterned polypropylene in dry sliding by Korpela, Tarmo, Suvanto, Mika, Pakkanen, Tuula T.

“…The influence of well-defined periodic micro-scale pillars on the friction and wear behavior of polypropylene (PP) surfaces was examined in dry sliding against…”
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Gold nanoparticle decorated Au-Ag alloy tubes: A bifunctional substrate for label-free and in situ surface-enhanced Raman scattering based reaction monitoring by Ankudze, Bright, Pakkanen, Tuula T.

“…[Display omitted] •Au-Ag tubes were decorated with gold nanoparticles via polymer linkage.•The numerous free amino groups of branched polyethylenimine aided…”
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Polyethylenimine-assisted seed-mediated synthesis of gold nanoparticles for surface-enhanced Raman scattering studies by Philip, Anish, Ankudze, Bright, Pakkanen, Tuula T.

“…[Display omitted] •Polyethylenimine-assisted seed-mediated synthesis of gold nanoparticles presented.•Size and polydispersity of AuNPs controlled by amounts of…”
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Aggregation induced emission transformation of liquid and solid-state N-doped graphene quantum dots by Ozyurt, Derya, Shafqat, Sunil, Pakkanen, Tuula T., Hocking, Rosalie K., Mouritz, Adrian, Fox, Bronwyn

“…Aggregation induced photoluminescent quenching of graphene quantum dots (GQDs) is a well-known effect, although there are limited reports of multicolour light…”
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Cold acclimation of pedunculate oak ( Quercus robur L.) at its northernmost distribution range by Repo, Tapani, Mononen, Kirsi, Alvila, Leila, Pakkanen, Tuula T., Hänninen, Heikki

“…Pedunculate oak ( Quercus robur L.) grows on the border of its northernmost distribution range in southern Finland. We hypothesised that insufficient cold…”
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Online monitoring of synthesis and curing of phenol–formaldehyde resol resins by Raman spectroscopy by Monni, Janne, Niemelä, Pentti, Alvila, Leila, Pakkanen, Tuula T.

“…The synthesis and curing of phenol–formaldehyde resol resins were monitored online by Raman spectroscopy. The synthesis of the resins (F/P 2.0, alkalinity…”
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A simple one-step fabrication of gold nanoparticles-based surface-enhanced Raman scattering substrates using rice grains by Philip, Anish, Ankudze, Bright, Pakkanen, Tuula T.

“…Metal nanoparticles synthesized using the green methods are essential for utilization of the nanoparticles in diagnostic and therapeutic applications. The…”
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Gold nanoparticle-decorated halloysite nanotubes – Selective catalysts for benzyl alcohol oxidation by Philip, Anish, Lihavainen, Jenna, Keinänen, Markku, Pakkanen, Tuula T.

“…Preparation of gold nanoparticle-decorated halloysite nanotubes (Au-Hal) by a deposition method and evaluation of their catalytic activity in an oxidation of…”
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Preparation and photoluminescence properties of graphene quantum dots by decomposition of graphene-encapsulated metal nanoparticles derived from Kraft lignin and transition metal salts by Temerov, Filipp, Belyaev, Andrey, Ankudze, Bright, Pakkanen, Tuula T.

“…Graphene quantum dots (GQDs) are nanometer-sized pieces of a graphene sheet possessing a number of fascinating electrical and optical properties. In this work,…”
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Cellulose reinforced high density polyethylene composites — Morphology, mechanical and thermal expansion properties by Pöllänen, Maija, Suvanto, Mika, Pakkanen, Tuula T.

“…A comparative study was made to find out how two cellulose based micron-sized fillers affect the morphological, thermal, and mechanical properties of high…”
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Mechanically Robust Superhydrophobic Polymer Surfaces Based on Protective Micropillars by Huovinen, Eero, Takkunen, Laura, Korpela, Tarmo, Suvanto, Mika, Pakkanen, Tuula T, Pakkanen, Tapani A

“…Considerable attention is currently being devoted less to the question of whether it is possible to produce superhydrophobic polymer surfaces than to just how…”
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Controlled synthesis of high yield polyhedral polyethylenimine-capped gold nanoparticles for real-time reaction monitoring by SERS by Ankudze, Bright, Philip, Anish, Pakkanen, Tuula T.

“…[Display omitted] •Polyhedral AuNPs were prepared using polyethylenimine as capping agent.•The prepared particles exhibit high-level SERS and catalytic…”
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Ultrasensitive and recyclable superstructure of AuSiO2@Ag wire for surface-enhanced Raman scattering detection of thiocyanate in urine and human serum by Ankudze, Bright, Philip, Anish, Pakkanen, Tuula T.

“…Thiocyanate level in the human system can serve as a biomarker to distinguish smokers from non-smokers. Thiocyanate is a potential goitrogen, thus an accurate…”
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Highly active surface-enhanced Raman scattering (SERS) substrates based on gold nanoparticles infiltrated into SiO2 inverse opals by Ankudze, Bright, Philip, Anish, Pakkanen, Tuula T., Matikainen, Antti, Vahimaa, Pasi

“…[Display omitted] •SERS substrates prepared by infiltration of nanoparticles into SiO2 inverse opal.•The SERS substrate gives an enhancement factor of 107 for…”
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Wear and friction behavior of polyacetal surfaces with micro-structure controlled surface pressure by Korpela, Tarmo, Suvanto, Mika, Pakkanen, Tuula T.

“…Macro-scale surface patterns are often used with tool and working surfaces to improve gripping, sliding or other working abilities. Polyacetal (POM) samples…”
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