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Ultralow-limit gas detection in nano-dumbbell polymer sensor via electrospinning.

Ultralow-limit gas detection in nano-dumbbell polymer sensor via electrospinning.

Nanoscale (2013-02-02)

Mianqi Xue, Fengwang Li, Yue Wang, Xiaojing Cai, Feng Pan, Jitao Chen

ZUSAMMENFASSUNG

Nano-dumbbells via electrospinning: controllable nano-dumbbells are fabricated via electrospinning. The weight block parts and the length of nanowires between them can be adjusted through changing the experimental conditions. This nanostructure enables ultralow-limit gas sensing properties of the resulting polypyrrole-based microsensor.

MATERIALIEN

Produktnummer

Marke

Produktbeschreibung

Sigma-Aldrich

Polyvinylpyrrolidon, average mol wt 40,000

Sigma-Aldrich

Polyvinylpyrrolidon, mol wt (number average molecular weight Mn 360kDa)

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Polyvinylpyrrolidon, powder, average M_w ~55,000

Sigma-Aldrich

Polyvinylpyrrolidon, average mol wt 10,000

Sigma-Aldrich

Polyvinylpyrrolidon, average M_w ~1,300,000 by LS

Sigma-Aldrich

Polyvinylpyrrolidon, K 30

Sigma-Aldrich

Polyvinylpyrrolidon, K 90

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Polyvinylpyrrolidon, powder, average M_w ~29,000

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Polyvinylpyrrolidon, powder, BioXtra, suitable for mouse embryo cell culture

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Polypyrrol, conductivity 10-50 S/cm (pressed pellet)

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Kollidon^® 25

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Polyvinylpyrrolidon -Lösung, K 60, 45% in H₂O

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Polypyrrol, doped, conductivity 30 S/cm (bulk), extent of labeling: 20 wt. % loading, composite with carbon black

Sigma-Aldrich

Polyvinylpyrrolidon, Molecular Biology, nucleic acid hybridization tested, mol wt 360,000

Supelco

Povidon, Pharmaceutical Secondary Standard; Certified Reference Material

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Polyvinylpyrrolidon, K 25, tested according to Ph. Eur.

Sigma-Aldrich

Polypyrrol, doped, conductivity 0.5-1.5 S/cm (pressed pellet, typical), extent of labeling: ~5 wt. % loading, coated on titanium dioxide

Sigma-Aldrich

Polyvinylpyrrolidon, suitable for plant cell culture, average mol wt 10,000

Sigma-Aldrich

Povidon, meets USP testing specifications

Povidon, European Pharmacopoeia (EP) Reference Standard