Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator
Plants have the ability to develop large mechanical force from chemical energy available with bio-fuels. The energy released by the cleavage of a terminal phosphate ion during the hydrolysis of a bio-fuel assists the transport of ions and fluids in cellular homeostasis. Materials that develop pressu...
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| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , |
| التنسيق: | conferenceObject |
| منشور في: |
2006
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| الوصول للمادة أونلاين: | http://hdl.handle.net/10725/5691 http://dx.doi.org/10.1117/12.658613 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1281706 |
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| _version_ | 1864513466132332544 |
|---|---|
| author | Akle, Barbar |
| author2 | Leo, Donald J. Sundaresan, Vishnu Baba |
| author2_role | author author |
| author_facet | Akle, Barbar Leo, Donald J. Sundaresan, Vishnu Baba |
| author_role | author |
| dc.creator.none.fl_str_mv | Akle, Barbar Leo, Donald J. Sundaresan, Vishnu Baba |
| dc.date.none.fl_str_mv | 2006 2017-06-01T06:47:05Z 2017-06-01T06:47:05Z 2017-06-01 |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10725/5691 http://dx.doi.org/10.1117/12.658613 Sundaresan, V. B., Akle, B., & Leo, D. J. (2006, March). Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator. In Smart Structures and Materials (pp. 61701U-61701U). International Society for Optics and Photonics. http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1281706 |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | 6170 |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics |
| dc.type.none.fl_str_mv | Conference Paper / Proceeding info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/conferenceObject |
| description | Plants have the ability to develop large mechanical force from chemical energy available with bio-fuels. The energy released by the cleavage of a terminal phosphate ion during the hydrolysis of a bio-fuel assists the transport of ions and fluids in cellular homeostasis. Materials that develop pressure and hence strain similar to the response of plants to an external stimuli are classified as nastic materials. This new class of actuators use protein transporters as functional units to move species and result in deformation [Leo et al 2005 (Proceedings of IMECE - 06)]. The ion transporters are hydrocarbons which are formed across the cellular membranes. The membranes that house the ion transporters are aggregates of phospholipids rigidized by cytoskeleton. Reconstituting these nano-machines on a harder matrix is quintessential to build a functional device. Artificial phospholipid membranes or Biliayer lipid membranes (BLM) have poor structural integrity and do not adhere to most surfaces. Patterned arrays of pores made on Poly-propylene glycol-diacrylate (PPG-DA) substrate, a photo curable polymer was made available to us for initial design iterations for an actuator. Hydrophobicity of PPG-DA posed initial problems to support a BLM. We modified the surface of micropatterned PPG-DA membrane by gold plating it. The surface of the porous PPG-DA membranes was plated with gold (Au). A 10nm seeding layer of Au was sputtered on the surface of the membrane. Further gold was reduced onto the sputtered gold surface [Supriya et al(Langmuir 2004, 20, 8870-8876)] by suspending the samples in a solution of hydroxylamine and Hydrogen tetrachloroaurate(III) trihydrate [HAuCl4.3H2O]. This reduction process increased the thickness of the gold, enhanced its adhesion to the PPG-DA substrate and improved the shapes of the pores. This surface modification of PPG-DA helped us form stable BLM with 1-Palmitoyl-2-Oleoyl-sn-Glycero-3- [Phospho-L-Serine] (Sodium Salt) (POPS), 1-Palmitoyl-2-Oleoyl-sn-Glycero- 3-Phosphoethanolamine (POPE) lipids. The observed ionic resistance of the BLM remained stable and sustained 4 mm water column for the the four hours observation period. This article describes the procedure we adopted to modify the PPG-DA substrate, form a BLM and the procedure to quantify the stability of the BLM formed with -amine and -thiol head groups in the lipids. |
| eu_rights_str_mv | openAccess |
| format | conferenceObject |
| id | LAURepo_dcbb2be88417adddd38be14b47919e0c |
| identifier_str_mv | Sundaresan, V. B., Akle, B., & Leo, D. J. (2006, March). Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator. In Smart Structures and Materials (pp. 61701U-61701U). International Society for Optics and Photonics. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/5691 |
| publishDate | 2006 |
| repository.mail.fl_str_mv | |
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| spelling | Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuatorSmart Structures and Materials 2006: Active Materials: Behavior and MechanicsAkle, BarbarLeo, Donald J.Sundaresan, Vishnu BabaPlants have the ability to develop large mechanical force from chemical energy available with bio-fuels. The energy released by the cleavage of a terminal phosphate ion during the hydrolysis of a bio-fuel assists the transport of ions and fluids in cellular homeostasis. Materials that develop pressure and hence strain similar to the response of plants to an external stimuli are classified as nastic materials. This new class of actuators use protein transporters as functional units to move species and result in deformation [Leo et al 2005 (Proceedings of IMECE - 06)]. The ion transporters are hydrocarbons which are formed across the cellular membranes. The membranes that house the ion transporters are aggregates of phospholipids rigidized by cytoskeleton. Reconstituting these nano-machines on a harder matrix is quintessential to build a functional device. Artificial phospholipid membranes or Biliayer lipid membranes (BLM) have poor structural integrity and do not adhere to most surfaces. Patterned arrays of pores made on Poly-propylene glycol-diacrylate (PPG-DA) substrate, a photo curable polymer was made available to us for initial design iterations for an actuator. Hydrophobicity of PPG-DA posed initial problems to support a BLM. We modified the surface of micropatterned PPG-DA membrane by gold plating it. The surface of the porous PPG-DA membranes was plated with gold (Au). A 10nm seeding layer of Au was sputtered on the surface of the membrane. Further gold was reduced onto the sputtered gold surface [Supriya et al(Langmuir 2004, 20, 8870-8876)] by suspending the samples in a solution of hydroxylamine and Hydrogen tetrachloroaurate(III) trihydrate [HAuCl4.3H2O]. This reduction process increased the thickness of the gold, enhanced its adhesion to the PPG-DA substrate and improved the shapes of the pores. This surface modification of PPG-DA helped us form stable BLM with 1-Palmitoyl-2-Oleoyl-sn-Glycero-3- [Phospho-L-Serine] (Sodium Salt) (POPS), 1-Palmitoyl-2-Oleoyl-sn-Glycero- 3-Phosphoethanolamine (POPE) lipids. The observed ionic resistance of the BLM remained stable and sustained 4 mm water column for the the four hours observation period. This article describes the procedure we adopted to modify the PPG-DA substrate, form a BLM and the procedure to quantify the stability of the BLM formed with -amine and -thiol head groups in the lipids.N/A2017-06-01T06:47:05Z2017-06-01T06:47:05Z20062017-06-01Conference Paper / Proceedinginfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://hdl.handle.net/10725/5691http://dx.doi.org/10.1117/12.658613Sundaresan, V. B., Akle, B., & Leo, D. J. (2006, March). Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator. In Smart Structures and Materials (pp. 61701U-61701U). International Society for Optics and Photonics.http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.phphttp://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1281706en6170info:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/56912021-03-19T10:00:54Z |
| spellingShingle | Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator Akle, Barbar |
| status_str | publishedVersion |
| title | Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator |
| title_full | Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator |
| title_fullStr | Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator |
| title_full_unstemmed | Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator |
| title_short | Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator |
| title_sort | Investigation on micro-patterned gold-plated polymer substrate for a micro hydraulic actuator |
| url | http://hdl.handle.net/10725/5691 http://dx.doi.org/10.1117/12.658613 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1281706 |