Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results

Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microd...
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Autor*in:	Riekel, Christian [verfasserIn] Rössle, Manfred Sapede, Daniel Vollrath, Fritz

Format:	Artikel
Sprache:	Englisch

Erschienen:	2003

Schlagwörter:	Silk Fibroin Crystalline Domain Axial Alignment Dragline Silk Crystalline Volume Fraction

Anmerkung:	© Springer-Verlag 2004

Übergeordnetes Werk:	Enthalten in: The science of nature - Springer-Verlag, 1913, 91(2003), 1 vom: 25. Okt., Seite 30-33
Übergeordnetes Werk:	volume:91 ; year:2003 ; number:1 ; day:25 ; month:10 ; pages:30-33

Links:	Volltext

DOI / URN:	10.1007/s00114-003-0482-8

Katalog-ID:	OLC2065165928

Internformat


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520			\|a Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microdiffraction. A brief exposure of a female Nephila senigalensis spider to $ CO_{2 } $results after an incubation time of less than 7 min in the extrusion of a thread (two fibres) swollen with water. The data are interpreted for a model of crystalline β-sheet domains containing nanofibrils, which reinforce a network of protein chains. The protein network absorbs water, leaving the nanofibrils unaffected. A continuous flow of $ CO_{2} $ results in a co-extrusion of a dragline thread and an isotropic silk fraction, which probably has a glycine-rich sequence. Long $ CO_{2} $ exposure reduces the axial alignment of nanofibrils, presumably due to a partial destruction of the amorphous network.
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allfields	10.1007/s00114-003-0482-8 doi (DE-627)OLC2065165928 (DE-He213)s00114-003-0482-8-p DE-627 ger DE-627 rakwb eng 500 VZ 500 VZ 11 ssgn Riekel, Christian verfasserin aut Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2004 Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microdiffraction. A brief exposure of a female Nephila senigalensis spider to $ CO_{2 } $results after an incubation time of less than 7 min in the extrusion of a thread (two fibres) swollen with water. The data are interpreted for a model of crystalline β-sheet domains containing nanofibrils, which reinforce a network of protein chains. The protein network absorbs water, leaving the nanofibrils unaffected. A continuous flow of $ CO_{2} $ results in a co-extrusion of a dragline thread and an isotropic silk fraction, which probably has a glycine-rich sequence. Long $ CO_{2} $ exposure reduces the axial alignment of nanofibrils, presumably due to a partial destruction of the amorphous network. Silk Fibroin Crystalline Domain Axial Alignment Dragline Silk Crystalline Volume Fraction Rössle, Manfred aut Sapede, Daniel aut Vollrath, Fritz aut Enthalten in The science of nature Springer-Verlag, 1913 91(2003), 1 vom: 25. Okt., Seite 30-33 (DE-627)129301744 (DE-600)123257-5 (DE-576)014494930 0028-1042 nnns volume:91 year:2003 number:1 day:25 month:10 pages:30-33 https://doi.org/10.1007/s00114-003-0482-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_30 GBV_ILN_31 GBV_ILN_34 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_130 GBV_ILN_150 GBV_ILN_154 GBV_ILN_160 GBV_ILN_170 GBV_ILN_179 GBV_ILN_188 GBV_ILN_209 GBV_ILN_252 GBV_ILN_259 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2010 GBV_ILN_2012 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2173 GBV_ILN_2190 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_2360 GBV_ILN_2410 GBV_ILN_2411 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4036 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4112 GBV_ILN_4116 GBV_ILN_4125 GBV_ILN_4193 GBV_ILN_4219 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4266 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4318 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4321 GBV_ILN_4325 GBV_ILN_4330 GBV_ILN_4337 GBV_ILN_4346 GBV_ILN_4385 AR 91 2003 1 25 10 30-33
spelling	10.1007/s00114-003-0482-8 doi (DE-627)OLC2065165928 (DE-He213)s00114-003-0482-8-p DE-627 ger DE-627 rakwb eng 500 VZ 500 VZ 11 ssgn Riekel, Christian verfasserin aut Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2004 Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microdiffraction. A brief exposure of a female Nephila senigalensis spider to $ CO_{2 } $results after an incubation time of less than 7 min in the extrusion of a thread (two fibres) swollen with water. The data are interpreted for a model of crystalline β-sheet domains containing nanofibrils, which reinforce a network of protein chains. The protein network absorbs water, leaving the nanofibrils unaffected. A continuous flow of $ CO_{2} $ results in a co-extrusion of a dragline thread and an isotropic silk fraction, which probably has a glycine-rich sequence. Long $ CO_{2} $ exposure reduces the axial alignment of nanofibrils, presumably due to a partial destruction of the amorphous network. Silk Fibroin Crystalline Domain Axial Alignment Dragline Silk Crystalline Volume Fraction Rössle, Manfred aut Sapede, Daniel aut Vollrath, Fritz aut Enthalten in The science of nature Springer-Verlag, 1913 91(2003), 1 vom: 25. Okt., Seite 30-33 (DE-627)129301744 (DE-600)123257-5 (DE-576)014494930 0028-1042 nnns volume:91 year:2003 number:1 day:25 month:10 pages:30-33 https://doi.org/10.1007/s00114-003-0482-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_30 GBV_ILN_31 GBV_ILN_34 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_130 GBV_ILN_150 GBV_ILN_154 GBV_ILN_160 GBV_ILN_170 GBV_ILN_179 GBV_ILN_188 GBV_ILN_209 GBV_ILN_252 GBV_ILN_259 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2010 GBV_ILN_2012 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2173 GBV_ILN_2190 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_2360 GBV_ILN_2410 GBV_ILN_2411 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4036 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4112 GBV_ILN_4116 GBV_ILN_4125 GBV_ILN_4193 GBV_ILN_4219 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4266 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4318 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4321 GBV_ILN_4325 GBV_ILN_4330 GBV_ILN_4337 GBV_ILN_4346 GBV_ILN_4385 AR 91 2003 1 25 10 30-33
allfields_unstemmed	10.1007/s00114-003-0482-8 doi (DE-627)OLC2065165928 (DE-He213)s00114-003-0482-8-p DE-627 ger DE-627 rakwb eng 500 VZ 500 VZ 11 ssgn Riekel, Christian verfasserin aut Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2004 Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microdiffraction. A brief exposure of a female Nephila senigalensis spider to $ CO_{2 } $results after an incubation time of less than 7 min in the extrusion of a thread (two fibres) swollen with water. The data are interpreted for a model of crystalline β-sheet domains containing nanofibrils, which reinforce a network of protein chains. The protein network absorbs water, leaving the nanofibrils unaffected. A continuous flow of $ CO_{2} $ results in a co-extrusion of a dragline thread and an isotropic silk fraction, which probably has a glycine-rich sequence. Long $ CO_{2} $ exposure reduces the axial alignment of nanofibrils, presumably due to a partial destruction of the amorphous network. Silk Fibroin Crystalline Domain Axial Alignment Dragline Silk Crystalline Volume Fraction Rössle, Manfred aut Sapede, Daniel aut Vollrath, Fritz aut Enthalten in The science of nature Springer-Verlag, 1913 91(2003), 1 vom: 25. Okt., Seite 30-33 (DE-627)129301744 (DE-600)123257-5 (DE-576)014494930 0028-1042 nnns volume:91 year:2003 number:1 day:25 month:10 pages:30-33 https://doi.org/10.1007/s00114-003-0482-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_30 GBV_ILN_31 GBV_ILN_34 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_130 GBV_ILN_150 GBV_ILN_154 GBV_ILN_160 GBV_ILN_170 GBV_ILN_179 GBV_ILN_188 GBV_ILN_209 GBV_ILN_252 GBV_ILN_259 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2010 GBV_ILN_2012 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2173 GBV_ILN_2190 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_2360 GBV_ILN_2410 GBV_ILN_2411 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4036 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4112 GBV_ILN_4116 GBV_ILN_4125 GBV_ILN_4193 GBV_ILN_4219 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4266 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4318 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4321 GBV_ILN_4325 GBV_ILN_4330 GBV_ILN_4337 GBV_ILN_4346 GBV_ILN_4385 AR 91 2003 1 25 10 30-33
allfieldsGer	10.1007/s00114-003-0482-8 doi (DE-627)OLC2065165928 (DE-He213)s00114-003-0482-8-p DE-627 ger DE-627 rakwb eng 500 VZ 500 VZ 11 ssgn Riekel, Christian verfasserin aut Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2004 Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microdiffraction. A brief exposure of a female Nephila senigalensis spider to $ CO_{2 } $results after an incubation time of less than 7 min in the extrusion of a thread (two fibres) swollen with water. The data are interpreted for a model of crystalline β-sheet domains containing nanofibrils, which reinforce a network of protein chains. The protein network absorbs water, leaving the nanofibrils unaffected. A continuous flow of $ CO_{2} $ results in a co-extrusion of a dragline thread and an isotropic silk fraction, which probably has a glycine-rich sequence. Long $ CO_{2} $ exposure reduces the axial alignment of nanofibrils, presumably due to a partial destruction of the amorphous network. Silk Fibroin Crystalline Domain Axial Alignment Dragline Silk Crystalline Volume Fraction Rössle, Manfred aut Sapede, Daniel aut Vollrath, Fritz aut Enthalten in The science of nature Springer-Verlag, 1913 91(2003), 1 vom: 25. Okt., Seite 30-33 (DE-627)129301744 (DE-600)123257-5 (DE-576)014494930 0028-1042 nnns volume:91 year:2003 number:1 day:25 month:10 pages:30-33 https://doi.org/10.1007/s00114-003-0482-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_30 GBV_ILN_31 GBV_ILN_34 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_130 GBV_ILN_150 GBV_ILN_154 GBV_ILN_160 GBV_ILN_170 GBV_ILN_179 GBV_ILN_188 GBV_ILN_209 GBV_ILN_252 GBV_ILN_259 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2010 GBV_ILN_2012 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2173 GBV_ILN_2190 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_2360 GBV_ILN_2410 GBV_ILN_2411 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4036 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4112 GBV_ILN_4116 GBV_ILN_4125 GBV_ILN_4193 GBV_ILN_4219 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4266 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4318 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4321 GBV_ILN_4325 GBV_ILN_4330 GBV_ILN_4337 GBV_ILN_4346 GBV_ILN_4385 AR 91 2003 1 25 10 30-33
allfieldsSound	10.1007/s00114-003-0482-8 doi (DE-627)OLC2065165928 (DE-He213)s00114-003-0482-8-p DE-627 ger DE-627 rakwb eng 500 VZ 500 VZ 11 ssgn Riekel, Christian verfasserin aut Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results 2003 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2004 Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microdiffraction. A brief exposure of a female Nephila senigalensis spider to $ CO_{2 } $results after an incubation time of less than 7 min in the extrusion of a thread (two fibres) swollen with water. The data are interpreted for a model of crystalline β-sheet domains containing nanofibrils, which reinforce a network of protein chains. The protein network absorbs water, leaving the nanofibrils unaffected. A continuous flow of $ CO_{2} $ results in a co-extrusion of a dragline thread and an isotropic silk fraction, which probably has a glycine-rich sequence. Long $ CO_{2} $ exposure reduces the axial alignment of nanofibrils, presumably due to a partial destruction of the amorphous network. Silk Fibroin Crystalline Domain Axial Alignment Dragline Silk Crystalline Volume Fraction Rössle, Manfred aut Sapede, Daniel aut Vollrath, Fritz aut Enthalten in The science of nature Springer-Verlag, 1913 91(2003), 1 vom: 25. Okt., Seite 30-33 (DE-627)129301744 (DE-600)123257-5 (DE-576)014494930 0028-1042 nnns volume:91 year:2003 number:1 day:25 month:10 pages:30-33 https://doi.org/10.1007/s00114-003-0482-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_30 GBV_ILN_31 GBV_ILN_34 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_73 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_130 GBV_ILN_150 GBV_ILN_154 GBV_ILN_160 GBV_ILN_170 GBV_ILN_179 GBV_ILN_188 GBV_ILN_209 GBV_ILN_252 GBV_ILN_259 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2010 GBV_ILN_2012 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2038 GBV_ILN_2173 GBV_ILN_2190 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_2360 GBV_ILN_2410 GBV_ILN_2411 GBV_ILN_4012 GBV_ILN_4028 GBV_ILN_4029 GBV_ILN_4036 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4082 GBV_ILN_4103 GBV_ILN_4112 GBV_ILN_4116 GBV_ILN_4125 GBV_ILN_4193 GBV_ILN_4219 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4266 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4318 GBV_ILN_4319 GBV_ILN_4320 GBV_ILN_4321 GBV_ILN_4325 GBV_ILN_4330 GBV_ILN_4337 GBV_ILN_4346 GBV_ILN_4385 AR 91 2003 1 25 10 30-33
language	English
source	Enthalten in The science of nature 91(2003), 1 vom: 25. Okt., Seite 30-33 volume:91 year:2003 number:1 day:25 month:10 pages:30-33
sourceStr	Enthalten in The science of nature 91(2003), 1 vom: 25. Okt., Seite 30-33 volume:91 year:2003 number:1 day:25 month:10 pages:30-33
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Silk Fibroin Crystalline Domain Axial Alignment Dragline Silk Crystalline Volume Fraction
dewey-raw	500
isfreeaccess_bool	false
container_title	The science of nature
authorswithroles_txt_mv	Riekel, Christian @@aut@@ Rössle, Manfred @@aut@@ Sapede, Daniel @@aut@@ Vollrath, Fritz @@aut@@
publishDateDaySort_date	2003-10-25T00:00:00Z
hierarchy_top_id	129301744
dewey-sort	3500
id	OLC2065165928
language_de	englisch
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author	Riekel, Christian
spellingShingle	Riekel, Christian ddc 500 ssgn 11 misc Silk Fibroin misc Crystalline Domain misc Axial Alignment misc Dragline Silk misc Crystalline Volume Fraction Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results
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topic_title	500 VZ 11 ssgn Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results Silk Fibroin Crystalline Domain Axial Alignment Dragline Silk Crystalline Volume Fraction
topic	ddc 500 ssgn 11 misc Silk Fibroin misc Crystalline Domain misc Axial Alignment misc Dragline Silk misc Crystalline Volume Fraction
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title	Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results
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title_full	Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results
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title_sort	influence of $ co_{2} $ on the micro-structural properties of spider dragline silk: x-ray microdiffraction results
title_auth	Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results
abstract	Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microdiffraction. A brief exposure of a female Nephila senigalensis spider to $ CO_{2 } $results after an incubation time of less than 7 min in the extrusion of a thread (two fibres) swollen with water. The data are interpreted for a model of crystalline β-sheet domains containing nanofibrils, which reinforce a network of protein chains. The protein network absorbs water, leaving the nanofibrils unaffected. A continuous flow of $ CO_{2} $ results in a co-extrusion of a dragline thread and an isotropic silk fraction, which probably has a glycine-rich sequence. Long $ CO_{2} $ exposure reduces the axial alignment of nanofibrils, presumably due to a partial destruction of the amorphous network. © Springer-Verlag 2004
abstractGer	Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microdiffraction. A brief exposure of a female Nephila senigalensis spider to $ CO_{2 } $results after an incubation time of less than 7 min in the extrusion of a thread (two fibres) swollen with water. The data are interpreted for a model of crystalline β-sheet domains containing nanofibrils, which reinforce a network of protein chains. The protein network absorbs water, leaving the nanofibrils unaffected. A continuous flow of $ CO_{2} $ results in a co-extrusion of a dragline thread and an isotropic silk fraction, which probably has a glycine-rich sequence. Long $ CO_{2} $ exposure reduces the axial alignment of nanofibrils, presumably due to a partial destruction of the amorphous network. © Springer-Verlag 2004
abstract_unstemmed	Abstract The mechanical properties of spider dragline fibres are altered by $ CO_{2} $ exposure under anaesthetizing conditions during the spinning process. In order to relate these macroscopic changes to a microscopic model, the extrusion of dragline silk was studied by synchrotron radiation microdiffraction. A brief exposure of a female Nephila senigalensis spider to $ CO_{2 } $results after an incubation time of less than 7 min in the extrusion of a thread (two fibres) swollen with water. The data are interpreted for a model of crystalline β-sheet domains containing nanofibrils, which reinforce a network of protein chains. The protein network absorbs water, leaving the nanofibrils unaffected. A continuous flow of $ CO_{2} $ results in a co-extrusion of a dragline thread and an isotropic silk fraction, which probably has a glycine-rich sequence. Long $ CO_{2} $ exposure reduces the axial alignment of nanofibrils, presumably due to a partial destruction of the amorphous network. © Springer-Verlag 2004
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title_short	Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results
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Influence of $ CO_{2} $ on the micro-structural properties of spider dragline silk: X-ray microdiffraction results

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