Chemical and Biomolecular Engineering
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List of files deposited in CurateND that match your search criteria
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- Inventor(s):
- Allen H. Simpson, Mark L. La Forest, Alexander Mukasyan
- Patent Number:
- US 8574470 B2
- Description:
Method of joining a carbon-carbon composite piece 30 together with a metal insert 20, e.g. in the manufacture of aircraft brake discs 10. The method includes the steps of: providing a carbon-carbon composite piece 30 and a metal insert 20, wherein the metal insert 20 has a surface that is complementary to a surface of said carbon-carbon composite piece 30; providing a layer of a mixture of titanium powder and carbon powder on the first complementary mating surface; arranging the powder layer …
- Date Issued:
- 2013-11-05
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- Inventor(s):
- Shramik Sengupta, Hsueh-Chia Chang
- Patent Number:
- US 8635028 B2
- Description:
An improved system and method is provided for detecting viable bacteria in a suspension sample. A sample of a suspension in which bacterial presence is suspected is collected from a source and a portion of the sample transferred to a microfluidic unit. A series of analysis signals at different frequencies are applied to the sample portion. An impedance is measured via a signal analyzer for the sample portion for each of the analysis signals to define an impedance data set. An initial bulk cap…
- Date Issued:
- 2014-01-21
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- Inventor(s):
- Jason C. Hicks, Gregory T. Neumann
- Patent Number:
- US 8969599 B2
- Description:
The invention provides a catalyst system for catalytic fast pyrolysis comprising a cerium-incorporated HZSM-5 zeolite (Catalyst 1), and methods of making and using the same. The invention also provides a process for reducing coke formation during catalytic fast pyrolysis of biomass using HZSM-5, wherein the process can include incorporating cerium into the HZSM-5 zeolite to produce Catalyst 1 prior to the catalytic fast pyrolysis.
- Date Issued:
- 2015-03-03
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- Inventor(s):
- Manuel Koucouthakis, Douglas J. Steinke, Alexander Mukasyan, Jeremiah D. E. White
- Patent Number:
- US 9321692 B2
- Description:
Production of pore-free carbon/carbon-silicon carbide composite materials with mechanical properties making them suitable for use in such applications as the production of aircraft landing system brake components including brake discs. The method includes: providing a porous carbon-carbon composite preform; surrounding the porous carbon-carbon composite preform with silicon powder to form an intermediate construct; applying a uniaxial load to the construct; applying direct electrical current …
- Date Issued:
- 2016-04-26
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- Inventor(s):
- Mark L. La Forest, Allen H. Simpson, Slawomir T. Fryska, Alexander Mukasyan
- Patent Number:
- US 8383197 B2
- Description:
A metal powder is applied to the surface of the area of a carbon-carbon composite brake disc to be protected against migration of antioxidant. The metal powder may be titanium powder or tungsten powder. A chemical reaction between the metal powder and carbon is then initiated by heating the powder-coated brake to the ignition temperature via application of electric current (Joule preheating) or by heating it in a furnace. Upon combustion, the metal particles react with carbon in the composite…
- Date Issued:
- 2013-02-26
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- Inventor(s):
- Allen H. Simpson, Slawomir T. Fryska, Mark L. La Forest, Roger L. Klinedinst, Alexander Mukasyan, Charles D. D'Amico
- Patent Number:
- US 8448685 B2
- Description:
An apparatus for bonding a first carbon composite to a second carbon composite through a reactant layer includes a housing, and a pair of conductive press plates electrically isolated from the housing. The press plates are adapted to position the two parts to be bonded with a reactant layer therebetween. The press plates are subjected to an electrical potential and a clamping force, sufficient to initiate a combustion reaction that creates a molten ceramic to bond together the carbon-carbon c…
- Date Issued:
- 2013-05-28
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- Inventor(s):
- Nishant Chetwani, Catherine Cassou, David Go, Hsueh-Chia Chang
- Patent Number:
- US 8716675 B2
- Description:
An alternating current electrospray mass spectrometry device includes an electrospray device having at least one emitter providing a passageway for transmission of an analyte sample. At least one conductive element is in electrical communication with the at least one emitter. A power source generates an alternating current electric field to form a liquid cone at a tip of the emitter and ionizes the analyte sample present in the liquid cone. The frequency of the electric field entrains low mob…
- Date Issued:
- 2014-05-06
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- Inventor(s):
- Hsueh-Chia Chang, Jason Gordon, Satyajyoti Senapati, Zachary Gagnon, Sagnik Basuray
- Patent Number:
- US 8771938 B2
- Description:
Disclosed are example methods and devices for detecting one or more targets. An example method includes placing a sample including a first target with in a microfluidic device and hybridizing a plurality of copies of the first target with a plurality of nanostructures. The example method includes applying an electric current to the plurality of nanostructures and using an electric field created by the electric current to move the plurality of nanostructures. In addition, the plurality of nano…
- Date Issued:
- 2014-07-08
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- Inventor(s):
- Hsueh-Chia Chang, Peter Mushenheim, Sagnik Basuray, Gilad Yossifon, Satyajyoti Senapati
- Patent Number:
- US 8969007 B2
- Description:
A microchamber electrochemical cell and method of using the cell for performing quantitative analysis of various charged macromolecules is presented. The microchamber electrochemical cell includes a substrate, opposing electrodes and at least one nanoslot. The substrate is configured to define a pair of opposing fluid reservoirs. The pair of opposing electrodes are respectively positioned within the opposing fluid reservoirs. Each nanoslot is configured to fluidly connect the opposing fluid r…
- Date Issued:
- 2015-03-03
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- Inventor(s):
- Alexander Mukasyan, Khachatur Manukyan
- Patent Number:
- US 9580323 B2
- Description:
The invention provides methods for the combustion synthesis (CS) of graphene by a novel exothermic self-sustained reaction between a refractory ceramic compound and a carbon-containing polymer under an inert gas atmosphere. The synthesis of graphene was confirmed by both transmission electron microscopy and Raman spectroscopy. The graphene produced has very low (<1 wt. %) oxygen content. Fluorocarbon gases released due to decomposition of the carbon-containing polymer in the combustion wav…
- Date Issued:
- 2017-02-28
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- Inventor(s):
- Paul J. McGinn, Changsheng Su
- Patent Number:
- US 9592490 B2
- Description:
A simplified method of manufacturing a catalyst for soot combustion includes the synthesis of a catalyst composition. A substrate is prepared for receipt of the composition and a sol solution is created utilizing the composition synthesized. Finally, a catalytic coating is applied to the substrate, through use of the sol solution. The catalyst composition may be any suitable composition including a K.sub.2O, CaO, SiO.sub.2 (KCS-1) silcate catalyst, and the substrate may be a wire mesh, such a…
- Date Issued:
- 2017-03-14
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- Inventor(s):
- Z. Basar Bilgicer, Tanyel Kiziltepe Bilgicer, Nathan J. Alves, Jonathan D. Ashley, Michael W. Handlogten
- Patent Number:
- US 9598460 B2
- Description:
Embodiments herein provide methods of purifying monoclonal and polyclonal antibodies (e.g., immunoglobulins) from biological fluids, such as cell lysates, cell supernatant and ascites fluids, using small molecule affinity chromatography. Various embodiments disclose a class of small molecules that selectively bind a nucleotide binding site that is inherent to all immunoglobulins, and in various embodiments, methods are disclosed that use one of these small molecules as a capture molecule in s…
- Date Issued:
- 2017-03-21