Metallization and investigation of electrical properties of invitro recrystallized mSbsC-eGFP assemblies

Nuriye Korkmaz; Felix Börrnert; Denny Köhler; Rafael G. Mendes; Alicja Bachmatiuk; Mark H. Rümmeli; Bernd Büchner; Lukas M. Eng; Gerhard Rödel

doi:10.1088/0957-4484/22/37/375606

Metallization and investigation of electrical properties of invitro recrystallized mSbsC-eGFP assemblies

Nuriye Korkmaz, Felix Börrnert, Denny Köhler, Rafael G. Mendes, Alicja Bachmatiuk, Mark H. Rümmeli, Bernd Büchner, Lukas M. Eng, Gerhard Rödel

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Surface layer (SL) proteins are self-assembling nanosized arrays which can be recrystallized in solution or on surfaces. In this paper, we investigate the metallization, contact potential difference and conductivity of invitro recrystallized mSbsC-eGFP tube-like assemblies for possible applications in nanobiotechnology. Treatment of mSbsC-eGFP tube-like structures with 150mM Pt salt solution resulted in the formation of metallized SL assemblies decorated with Pt nanoparticles ( > 3nm) which were closely packed and aggregated into metal clusters. Kelvin probe force microscopy (KPFM) measurements revealed that metallized and unmetallized SL templates showed different surface potential behaviours, demonstrating that the metal coating changes the electrostatic surface characteristics of SL assemblies. Insitu conductivity measurements showed that unmetallized SL assemblies were not conductive. Metallized samples showed linear I-V dependence between - 1 and + 1V with a conductivity of ∼ 103Sm- 1. © 2011 IOP Publishing Ltd.

Original language	English
Journal	Nanotechnology
Volume	22
Issue number	37
DOIs	https://doi.org/10.1088/0957-4484/22/37/375606
Publication status	Published - 16 Sept 2011

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@article{3212cfe307f349f3bbc7d9b0eea4a263,

title = "Metallization and investigation of electrical properties of invitro recrystallized mSbsC-eGFP assemblies",

abstract = "Surface layer (SL) proteins are self-assembling nanosized arrays which can be recrystallized in solution or on surfaces. In this paper, we investigate the metallization, contact potential difference and conductivity of invitro recrystallized mSbsC-eGFP tube-like assemblies for possible applications in nanobiotechnology. Treatment of mSbsC-eGFP tube-like structures with 150mM Pt salt solution resulted in the formation of metallized SL assemblies decorated with Pt nanoparticles ( > 3nm) which were closely packed and aggregated into metal clusters. Kelvin probe force microscopy (KPFM) measurements revealed that metallized and unmetallized SL templates showed different surface potential behaviours, demonstrating that the metal coating changes the electrostatic surface characteristics of SL assemblies. Insitu conductivity measurements showed that unmetallized SL assemblies were not conductive. Metallized samples showed linear I-V dependence between - 1 and + 1V with a conductivity of ∼ 103Sm- 1. {\textcopyright} 2011 IOP Publishing Ltd.",

author = "Nuriye Korkmaz and Felix B{\"o}rrnert and Denny K{\"o}hler and Mendes, {Rafael G.} and Alicja Bachmatiuk and R{\"u}mmeli, {Mark H.} and Bernd B{\"u}chner and Eng, {Lukas M.} and Gerhard R{\"o}del",

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doi = "10.1088/0957-4484/22/37/375606",

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AU - Korkmaz, Nuriye

AU - Börrnert, Felix

AU - Köhler, Denny

AU - Mendes, Rafael G.

AU - Bachmatiuk, Alicja

AU - Rümmeli, Mark H.

AU - Büchner, Bernd

AU - Eng, Lukas M.

AU - Rödel, Gerhard

PY - 2011/9/16

Y1 - 2011/9/16

N2 - Surface layer (SL) proteins are self-assembling nanosized arrays which can be recrystallized in solution or on surfaces. In this paper, we investigate the metallization, contact potential difference and conductivity of invitro recrystallized mSbsC-eGFP tube-like assemblies for possible applications in nanobiotechnology. Treatment of mSbsC-eGFP tube-like structures with 150mM Pt salt solution resulted in the formation of metallized SL assemblies decorated with Pt nanoparticles ( > 3nm) which were closely packed and aggregated into metal clusters. Kelvin probe force microscopy (KPFM) measurements revealed that metallized and unmetallized SL templates showed different surface potential behaviours, demonstrating that the metal coating changes the electrostatic surface characteristics of SL assemblies. Insitu conductivity measurements showed that unmetallized SL assemblies were not conductive. Metallized samples showed linear I-V dependence between - 1 and + 1V with a conductivity of ∼ 103Sm- 1. © 2011 IOP Publishing Ltd.

AB - Surface layer (SL) proteins are self-assembling nanosized arrays which can be recrystallized in solution or on surfaces. In this paper, we investigate the metallization, contact potential difference and conductivity of invitro recrystallized mSbsC-eGFP tube-like assemblies for possible applications in nanobiotechnology. Treatment of mSbsC-eGFP tube-like structures with 150mM Pt salt solution resulted in the formation of metallized SL assemblies decorated with Pt nanoparticles ( > 3nm) which were closely packed and aggregated into metal clusters. Kelvin probe force microscopy (KPFM) measurements revealed that metallized and unmetallized SL templates showed different surface potential behaviours, demonstrating that the metal coating changes the electrostatic surface characteristics of SL assemblies. Insitu conductivity measurements showed that unmetallized SL assemblies were not conductive. Metallized samples showed linear I-V dependence between - 1 and + 1V with a conductivity of ∼ 103Sm- 1. © 2011 IOP Publishing Ltd.

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SN - 0957-4484

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JO - Nanotechnology

JF - Nanotechnology

IS - 37

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Metallization and investigation of electrical properties of invitro recrystallized mSbsC-eGFP assemblies

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