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Chemical and Biochemical Engineering Faculty Research & Creative Works

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Articles 241 - 270 of 823

Full-Text Articles in Chemical Engineering

Assessing The Removal Of Heavy Metals Using Emerging And Intensifying Technology Of Emulsion Liquid Membrane With Ionic Liquid, Qusay Al-Obaidi, Jasmine Monroe, Hannah Smith, Zaid Haha, Muthanna H. Al-Dahhan May 2020

Assessing The Removal Of Heavy Metals Using Emerging And Intensifying Technology Of Emulsion Liquid Membrane With Ionic Liquid, Qusay Al-Obaidi, Jasmine Monroe, Hannah Smith, Zaid Haha, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

(Pb(II)) is one of the heavy metals compounds founds in the industrial wastes that needs to be removed from treated wastewater. Emulsion liquid membrane (ELM) has been introduced as an emerging technology for advanced wastewater and water treatment. This emerging technology of treatment can be intensified by strategically adding the hydrophobic ionic liquid of [OMIM][PF6] and ({[BMIM]+ [NTf2]-) ionic liquid to organic membrane phase (O) to facilitate the industrial implementation of ELM with ionic liquid. The results show that with the use of 5% (V/V) [OMIM][PF6] ionic liquid has increased the removal efficiency to 70.37% in reaction …

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Zeolite Monolith Compositions And Methods For The Catalytic Cracking Of Alkanes, Ali A. Rownaghi, Xin Li, Fateme Rezaei Apr 2020

Zeolite Monolith Compositions And Methods For The Catalytic Cracking Of Alkanes, Ali A. Rownaghi, Xin Li, Fateme Rezaei

Chemical and Biochemical Engineering Faculty Research & Creative Works

Porous zeolite monolith compositions for the catalytic cracking of alkanes. The compositions may be prepared layer by layer using a 3D printer such that the compositions comprise a plurality of micropores and a plurality of mesopores and may be characterized by macro-meso-microporosity.

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Coating Topologically Complex Electrospun Fibers With Nanothin Silk Fibroin Enhances Neurite Outgrowth In Vitro, Alexis M. Ziemba, Tanner D. Fink, Mary Clare Crochiere, Devan L. Puhl, Samichya Sapkota, Ryan J. Gilbert, R. Helen Zha Mar 2020

Coating Topologically Complex Electrospun Fibers With Nanothin Silk Fibroin Enhances Neurite Outgrowth In Vitro, Alexis M. Ziemba, Tanner D. Fink, Mary Clare Crochiere, Devan L. Puhl, Samichya Sapkota, Ryan J. Gilbert, R. Helen Zha

Chemical and Biochemical Engineering Faculty Research & Creative Works

Electro spun poly-l-lactic acid (PLLA) fibers are commonly used for tissue engineering applications because of their uniform morphology, and their efficacy can be further enhanced via surface modification. In this study, we aimed to increase neurite outgrowth along electro spun fibers by coating with silk fibroin (SF), a bioinert protein derived from Bombyx mori cocoon threads, shown to be neuro compatible. Aligned PLLA fibers were electro spun with smooth, pitted, and devoted surface nano topographies and coated with SF by immersion in coating solution for either 12 or 24 h. Specifically, thin-film coatings of SF were generated by leveraging the …

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Evaluation Of Diode Laser Application On Chemical Analysis And Surface Microhardness Of White Spots Enamel Lesions With Two Remineralizing Agents, Lamiaa Mahmoud Moharam, Doaa Mohamed Sadony, Shaymaa Mohamed Nagi Mar 2020

Evaluation Of Diode Laser Application On Chemical Analysis And Surface Microhardness Of White Spots Enamel Lesions With Two Remineralizing Agents, Lamiaa Mahmoud Moharam, Doaa Mohamed Sadony, Shaymaa Mohamed Nagi

Chemical and Biochemical Engineering Faculty Research & Creative Works

Background: To investigate the effect of diode laser application and two commercial remineralizing agents on the remineralization and surface microhardness of white spot enamel lesions. Material and Methods: Sixty specimens were prepared then equally divided into six groups (n=10/group), according to the diode laser and the two commercial remineralizing agents applied to demineralized enamel surfaces (APF gel and sodium fluoride NaF mousse) with or without diode Laser application as follows; Group A; control, Group B; diode Laser application, Group C; APF gel application, Group D; NaF mousse application, Group E; APF gel application + diode Laser, Group F; NaF mousse …

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Rapid Self-Assembly Of Polymer Nanoparticles For Synergistic Codelivery Of Paclitaxel And Lapatinib Via Flash Nanoprecipitation, Shani L. Levit, Hu Yang, Christina Tang Mar 2020

Rapid Self-Assembly Of Polymer Nanoparticles For Synergistic Codelivery Of Paclitaxel And Lapatinib Via Flash Nanoprecipitation, Shani L. Levit, Hu Yang, Christina Tang

Chemical and Biochemical Engineering Faculty Research & Creative Works

Taxol, a formulation of paclitaxel (PTX), is one of the most widely used anticancer drugs, particularly for treating recurring ovarian carcinomas following surgery. Clinically, PTX is used in combination with other drugs such as lapatinib (LAP) to increase treatment efficacy. Delivering drug combinations with nanoparticles has the potential to improve chemotherapy outcomes. In this study, we use Flash NanoPrecipitation, a rapid, scalable process to encapsulate weakly hydrophobic drugs (logP < 6) PTX and LAP into polymer nanoparticles with a coordination complex of tannic acid and iron formed during the mixing process. We determine the formulation parameters required to achieve uniform nanoparticles and evaluate the drug release in vitro. The size of the resulting nanoparticles was stable at pH 7.4, facilitating sustained drug release via first-order Fickian diffusion. Encapsulating either PTX or LAP into nanoparticles increases drug potency (as indicated by the decrease in IC-50 concentration); we observe a 1500-fold increase in PTX potency and a six-fold increase in LAP potency. When PTX and LAP are co-loaded in the same nanoparticle, they have a synergistic effect that is greater than treating with two single-drug-loaded nanoparticles as the combination index is 0.23 compared to 0.40, respectively.

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Bone Marrow-Derived And Elicited Peritoneal Macrophages Are Not Created Equal: The Questions Asked Dictate The Cell Type Used, Cheryl M. Zajd, Alexis M. Ziemba, Grace M. Miralles, Terry Nguyen, Paul J. Feustel, Stanley M. Dunn, Ryan J. Gilbert, Michelle R. Lennartz Feb 2020

Bone Marrow-Derived And Elicited Peritoneal Macrophages Are Not Created Equal: The Questions Asked Dictate The Cell Type Used, Cheryl M. Zajd, Alexis M. Ziemba, Grace M. Miralles, Terry Nguyen, Paul J. Feustel, Stanley M. Dunn, Ryan J. Gilbert, Michelle R. Lennartz

Chemical and Biochemical Engineering Faculty Research & Creative Works

Macrophages are a heterogeneous and plastic population of cells whose phenotype changes in response to their environment. Macrophage biologists utilize peritoneal (pMAC) and bone marrow-derived macrophages (BMDM) for in vitro studies. Given that pMACs mature in vivo while BMDM are ex vivo differentiated from stem cells, it is likely that their responses differ under experimental conditions. Surprisingly little is known about how BMDM and pMACs responses compare under the same experimental conditionals. While morphologically similar with respect to forward and side scatter by flow cytometry, reports in the literature suggest that pMACs are more mature than their BMDM counterparts. Given …

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Synthesis And Characterization Of Chitosan Based Catalyst For Catalysis Applications, Hany A. Elazab, Yousab G. Remiz, Mostafa A. Radwan, M. A. Sadek Feb 2020

Synthesis And Characterization Of Chitosan Based Catalyst For Catalysis Applications, Hany A. Elazab, Yousab G. Remiz, Mostafa A. Radwan, M. A. Sadek

Chemical and Biochemical Engineering Faculty Research & Creative Works

In this research, chitosan-based catalyst synthesis and characterization was investigated for different application in catalysis as chitosan-based catalyst was combined with metal oxides in order to be used in dye removal of methyl orange (MO). Diluted acetic acid was used to dissolve chitosan then different percentages for metallic ions were mixed with diluted chitosan and then, 500 µL were added to the sample to reduce the metal salts then, microwave was used to heat the mixture for 5 minutes and then dried at 80-100 °C. Finally, X- ray diffraction was used to confirm the catalyst prepared. The aim of this …

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Development Of Novel Adsorbent For Industrial Wastewater Treatment, Hassaan M. Shehata, Dalia A. Ali, Islam M. Al-Akraa, Hoda A. Elsawy, Hany A. Elazab Feb 2020

Development Of Novel Adsorbent For Industrial Wastewater Treatment, Hassaan M. Shehata, Dalia A. Ali, Islam M. Al-Akraa, Hoda A. Elsawy, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

The main objective of this research project is to perform some experimental procedures to inform the ability of the novel adsorbent used in this project. The chemical modification of the adsorbent is the chemical oxidation of pure powder chitosan using some specific redox pairs which are potassium dichromate and sodium bisulphite. After preparing the modified chitosan, there are some parameters that must be discussed during the adsorption process. The first parameter is the time parameter, showing experimentally the optimum time for adsorption under certain conditions by collecting values of absorbance and concentration of thymol blue adsorbed after the process from …

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Mathematica As An Efficient Tool To Optimize The Kinetic Study Of Ethyl Acetate Hydrolysis, M. H. El Dewaik, Mamdouh Gadalla, M. A. Sadek, Hany A. Elazab Feb 2020

Mathematica As An Efficient Tool To Optimize The Kinetic Study Of Ethyl Acetate Hydrolysis, M. H. El Dewaik, Mamdouh Gadalla, M. A. Sadek, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

Mathematica is a powerful program for computing both numeric and algebraic calculations as well as graphing two- and three-dimensional curves and surfaces. It is used increasingly in many fields of science now such as physics, engineering, chemistry and even biology because of the fast interaction of mathematics with almost the fields of science nowadays. We report here, optimizing the kinetic data for the hydrolysis of ethyl acetate through caustic soda via using Mathematica.

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Effect Of Tio2 Doping On Degradation Rate, Microstructure And Strength Of Borate Bioactive Glass Scaffolds, Romina Shafaghi, Omar Rodriguez, Sunjeev Phull, Emil H. Schemitsch, Paul Zalzal, Stephen D. Waldman, Marcello Papini, Mark R. Towler Feb 2020

Effect Of Tio2 Doping On Degradation Rate, Microstructure And Strength Of Borate Bioactive Glass Scaffolds, Romina Shafaghi, Omar Rodriguez, Sunjeev Phull, Emil H. Schemitsch, Paul Zalzal, Stephen D. Waldman, Marcello Papini, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

A titanium-containing borate glass series based on the system (52-X) B2O3–12CaO–6P2O5–14Na2O–16ZnO-XTiO2 with X varying from 0, 5 and 15 mol% of TiO2 incorporated, identified as BRT0, BRT1 and BRT3, respectively, were used in this study. Scaffolds (pore sizes, 165–230 μm and porosity, 53.51–69.51%) were prepared using a polymer foam replication technique. BRT3 scaffolds exhibited higher compressive strength (7.16 ± 0.22 MPa) when compared to BRT0 (6.02 ± 0.47 MPa) and BRT1 (5.65 ± 0.28 MPa) scaffolds with lower, or no, TiO2 content. The solubility of the scaffolds decreased …

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Efficient Catalytic Production Of Biodiesel Using Nano-Sized Sugar Beet Agro-Industrial Waste, Hosam H. Abdelhady, Hany A. Elazab, Emad M. Ewais, Mohamed Saber, Mohamed S. El-Deab Feb 2020

Efficient Catalytic Production Of Biodiesel Using Nano-Sized Sugar Beet Agro-Industrial Waste, Hosam H. Abdelhady, Hany A. Elazab, Emad M. Ewais, Mohamed Saber, Mohamed S. El-Deab

Chemical and Biochemical Engineering Faculty Research & Creative Works

This paper addresses the use of agro-industrial residue as a promising heterogeneous catalyst for the efficient production of biodiesel. That is, CaO-rich Sugarbeet agro-industrial waste (smashed down to nano-size) shows superb catalytic activity for biodiesel production via transesterification process employing sunflower oil and methanol. Physicochemical properties of the proposed catalyst are probed by TGA–DTG, XRF, XRD, FT-IR, SEM, BET, and CO2-TPD techniques. Biodiesel conversion (%) of Ca. 93% is achieved under the optimal conditions (catalyst loading of 1 wt%, methanol/oil molar ratio of 4.5:1, refluxed at 75 °C for 60 min). The relatively short reaction time indicates the enhanced kinetics …

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Enhanced Water Electrolysis: Effect Of Temperature On The Oxygen Evolution Reaction At Cobalt Oxide Nanoparticles Modified Glassy Carbon Electrodes, Aya Akl, Hany A. Elazab, Mohamed A. Sadek, Mohamed S. El-Deab Jan 2020

Enhanced Water Electrolysis: Effect Of Temperature On The Oxygen Evolution Reaction At Cobalt Oxide Nanoparticles Modified Glassy Carbon Electrodes, Aya Akl, Hany A. Elazab, Mohamed A. Sadek, Mohamed S. El-Deab

Chemical and Biochemical Engineering Faculty Research & Creative Works

Water splitting producing hydrogen and oxygen gases appears promising in view of the increasing need of renewable energy sources and storage strategies. Investigation of stable and highly efficient electrocatalysts for oxygen evolution reaction (OER) is targeted in this study at cobalt oxide nanoparticle modified glassy carbon (nano-CoOx/GC) electrodes. The effect of the preparation (Tp) and measuring temperature (Tm) on the electrocatalytic activity of nano-CoOx/GC towards the OER is investigated under various operating conditions. Linear sweep voltammetry (LSV), cyclic voltammetry (CV) as well as SEM and XRD techniques were used to probe the electrocatalytic and morphological characteristics of nano-CoOx prepared under …

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Synthesis And Characterization Of Pvp Based Catalysts For Selected Application In Catalysis, Hany A. Elazab, Mohamed N. Ayad, Mohamed M. Hammam, Mostafa A. Radwan, Mohamed A. Sadek Jan 2020

Synthesis And Characterization Of Pvp Based Catalysts For Selected Application In Catalysis, Hany A. Elazab, Mohamed N. Ayad, Mohamed M. Hammam, Mostafa A. Radwan, Mohamed A. Sadek

Chemical and Biochemical Engineering Faculty Research & Creative Works

This research aims to study the catalyst activity in specific reactions and the characteristics of the catalyst in order to optimize its performance. This research investigates PVP based catalysts and their properties and applications. PVP was prepared in combination with different metal oxides in order to be tested for different catalytic applications including dye removal. Methyl orange was used as a dye and different concentrations were tested against different metallic ions in order to optimize the catalyst for being used in dye removal applications. Spectrophotometer was used to calculate the concentration of the dye before and after catalyst exposure and …

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Polyball: A New Adsorbent For The Efficient Removal Of Endotoxin From Biopharmaceuticals, Sidharth Razdan, Jee-Ching Wang, Sutapa Barua Dec 2019

Polyball: A New Adsorbent For The Efficient Removal Of Endotoxin From Biopharmaceuticals, Sidharth Razdan, Jee-Ching Wang, Sutapa Barua

Chemical and Biochemical Engineering Faculty Research & Creative Works

The presence of endotoxin, also known as lipopolysaccharides (LPS), as a side product appears to be a major drawback for the production of certain biomolecules that are essential for research, pharmaceutical, and industrial applications. In the biotechnology industry, gram-negative bacteria (e.g., Escherichia coli ) are widely used to produce recombinant products such as proteins, plasmid DNAs and vaccines. These products are contaminated with LPS, which may cause side effects when administered to animals or humans. Purification of LPS often suffers from product loss. For this reason, special attention must be paid when purifying proteins aiming a product as free as …

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Vastly Extended Drug Release From Poly(Pro-17Β-Estradiol) Materials Facilitates In Vitro Neurotrophism And Neuroprotection, Anthony R. D'Amato, Devan L. Puhl, Samuel A.T. Ellman, Bailey Balouch, Ryan J. Gilbert, Edmund F. Palermo Dec 2019

Vastly Extended Drug Release From Poly(Pro-17Β-Estradiol) Materials Facilitates In Vitro Neurotrophism And Neuroprotection, Anthony R. D'Amato, Devan L. Puhl, Samuel A.T. Ellman, Bailey Balouch, Ryan J. Gilbert, Edmund F. Palermo

Chemical and Biochemical Engineering Faculty Research & Creative Works

Central nervous system (CNS) injuries persist for years, and currently there are no therapeutics that can address the complex injury cascade that develops over this timescale. 17β-estradiol (E2) has broad tropism within the CNS, targeting and inducing beneficial phenotypic changes in myriad cells following injury. To address the unmet need for vastly prolonged E2 release, we report first-generation poly(pro-E2) biomaterial scaffolds that release E2 at nanomolar concentrations over the course of 1–10 years via slow hydrolysis in vitro. As a result of their finely tuned properties, these scaffolds demonstrate the ability to promote and guide neurite extension ex vivo and …

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Novel Adsorbent For Industrial Wastewater Treatment Applications, Ahmed Y. Zakaria, Dalia A. Ali, Islam M. Al-Akraa, Hoda A. Elsawy, Hany A. Elazab Nov 2019

Novel Adsorbent For Industrial Wastewater Treatment Applications, Ahmed Y. Zakaria, Dalia A. Ali, Islam M. Al-Akraa, Hoda A. Elsawy, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

In this study, the hydroxyapatite powder is investigated for both of methylene blue and thymol blue in aqueous solution. The physical and chemical properties of the adsorbent were evaluated systematically using the different techniques including Microsoft Excel programming, linear regression model and also the coefficient of determination. Batch adsorption experiments were conducted to determine the effect of contact time, solution pH, initial dye concentrations, and also the adsorbent dosage on adsorption. The adsorption kinetic parameters confirmed the better fitting of pseudo-second order kinetic model for both of methylene blue and thymol blue. The isotherm data of methylene blue and thymol …

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Decorative Articles Based On Polymeric Materials, Bassant Hussein, Yaser M. Asal, M. A. Radwan, M. A. Sadek, Hany A. Elazab Nov 2019

Decorative Articles Based On Polymeric Materials, Bassant Hussein, Yaser M. Asal, M. A. Radwan, M. A. Sadek, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

The aim of the research is to create decorative articles based on polymeric materials, study the effects of fillers and the type of moulds that it can cope with the exothermic reaction nature of resin to create a scientific background on the usage of the resins in daily life products. The polymeric materials that will be concentrated on are the unsaturated polyester resins and epoxy resins. The unsaturated polyester is of many types and chemical constituents, the used experimentally is a general-purpose type and the epoxy also have different types and the used is a commercially 3D floor coating type. …

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Microwave Assisted Synthesis Of Binary Metallic Oxides For Catalysis Applications, Abdelrahman Mostafa Kamal, Sherif Bahgat, Mohamed Hammam, M. A. Radwan, M. A. Sadek, Hany A. Elazab Nov 2019

Microwave Assisted Synthesis Of Binary Metallic Oxides For Catalysis Applications, Abdelrahman Mostafa Kamal, Sherif Bahgat, Mohamed Hammam, M. A. Radwan, M. A. Sadek, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

Herein, versatile, and reproducible method to prepare binary metal oxides via microwave assisted synthesis. Catalysts are substances that basically speeds up chemical reactions. Ideally, bonds are formed between the catalysts and the reactants. Also, catalysts permit formation of products from the reactants. These formed products, splits off the catalyst without affecting or changing it. Catalytic kinetics studies the correlate chemical reaction rate with some properties of reactants and/or products for instance, temperature, concentration and pressure. The aim of the project is to prepare pure and bi-metal iron-based catalyst by co-precipitation method and to characterize the prepared sample using X-ray diffraction. …

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Composite Materials Based On Twaron And Nano Materials, Omnia Hamdy, Remon A. Mankarious, M. A. Radwan, M. A. Sadek, Hany A. Elazab Nov 2019

Composite Materials Based On Twaron And Nano Materials, Omnia Hamdy, Remon A. Mankarious, M. A. Radwan, M. A. Sadek, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

This research aims to participate in producing body shield that can overcome pervious drawbacks using behavior of shear thickening fluid. Initially, the rheological behavior of silica-polyethylene glycol shear thickening fluid is examined at different concentrations. Then, ballistic fabric samples are impregnated into silica-polyethylene glycol shear thickening fluid at various concentrations of silica and tested using gas gun simulating real ballistic threat. After that, the impact of rubbery hot water pack filled with around 66.67 wt% starch in water is tested using gas gun. Results showed as the concentration of silica increases, the indentation depth in the impregnated fabric decreases which …

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A Review Of Materials For Managing Bone Loss In Revision Total Knee Arthroplasty, Romina Shafaghi, Omar Rodriguez, Emil H. Schemitsch, Paul Zalzal, Stephen D. Waldman, Marcello Papini, Mark R. Towler Nov 2019

A Review Of Materials For Managing Bone Loss In Revision Total Knee Arthroplasty, Romina Shafaghi, Omar Rodriguez, Emil H. Schemitsch, Paul Zalzal, Stephen D. Waldman, Marcello Papini, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

In 2014–2015, 61,421 total knee arthroplasties (TKAs) were performed in Canada; an increase of about 20% over 2000–2001. Revision total knee arthroplasties (rTKAs) accounted for 6.8% of TKAs performed between 2014 and 2015, and this is estimated to grow another 12% by 2025. rTKAs are typically more complicated than primary TKAs due to the significant loss of femoral and tibial bone stock. The escalating demand and limitations associated with total knee arthroplasty and their revision drives the development of novel treatments. A variety of materials have been utilized to facilitate regeneration of healthy bone around the site of a knee …

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Hydrothermal Preparation Of Palladium Supported On Magnetite For Catalysis Applications, Hany A. Elazab, S. A. Hassan, M. A. Radwan, M. A. Sadek Oct 2019

Hydrothermal Preparation Of Palladium Supported On Magnetite For Catalysis Applications, Hany A. Elazab, S. A. Hassan, M. A. Radwan, M. A. Sadek

Chemical and Biochemical Engineering Faculty Research & Creative Works

Herein, versatile, and reproducible method to prepare Pd/Fe3O4 via hydrothermal synthesis. The vital role of this catalyst is in its potential use in CO oxidation catalysis. The Pd/Fe3O4 shows a distinctive activity. TEM images confirmed that Pd nanoparticles of 8-12 nm have a well dispersion on the surface of magnetite (Fe3O4). Moreover, the prepared catalyst is recycled with remarkable catalytic activity. This outstanding activity is mainly a direct result of the strong metal-support interaction. The defect sites in the reduced iron oxide act as nucleation centers that enable anchoring of …

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The Effect Of Tantalum Incorporation On The Physical And Chemical Properties Of Ternary Silicon–Calcium–Phosphorous Mesoporous Bioactive Glasses, Andrew Mendonca, Md Saidur Rahman, Adel Alhalawani, Omar Rodriguez, Reid C. Gallant, Heyu Ni, Owen M. Clarkin, Mark R. Towler Oct 2019

The Effect Of Tantalum Incorporation On The Physical And Chemical Properties Of Ternary Silicon–Calcium–Phosphorous Mesoporous Bioactive Glasses, Andrew Mendonca, Md Saidur Rahman, Adel Alhalawani, Omar Rodriguez, Reid C. Gallant, Heyu Ni, Owen M. Clarkin, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

Synthesis and characterization of the first mesoporous bioactive glasses (MBGs) containing tantalum are reported here, along with their potential application as hemostats. Silica MBGs were synthesized using with the molar composition of (80-x)% Si, 15% Ca, 5% P, and x% Ta. It was found that incorporation of >1 mol % Ta into the MBGs changes their physical and chemical properties. Increasing Ta content from 0 to 10 mol % causes a decrease in the surface area and pore volume of ~20 and ~35%, respectively. This is due to the increase in nonbridging oxygens and mismatch of thermal expansion coefficient which …

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Sequencing Heparan Sulfate Using Hilic Lc-Netd-Ms/Ms, Jiandong Wu, Juan Wei, Pradeep Chopra, Geert Jan Boons, Cheng Lin, Joseph Zaia Sep 2019

Sequencing Heparan Sulfate Using Hilic Lc-Netd-Ms/Ms, Jiandong Wu, Juan Wei, Pradeep Chopra, Geert Jan Boons, Cheng Lin, Joseph Zaia

Chemical and Biochemical Engineering Faculty Research & Creative Works

Heparan Sulfate (HS) Mediates a Wide Range of Protein Binding Interactions Key to Normal and Pathological Physiology. Though Liquid Chromatography Coupled with Mass Spectrometry (LC-MS) based Disaccharide Composition Analysis is Able to Profile Changes in HS Composition, the Heterogeneity of Modifications and the Labile Sulfate Group Present Major Challenges for Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS) Sequencing of the HS Oligosaccharides that Represent Protein Binding Determinants. Here, We Report Online LC-MS/MS Sequencing of HS Oligosaccharides using Hydrophilic Interaction Liquid Chromatography (HILIC) and Negative Electron Transfer Dissociation (NETD). a Series of Synthetic HS Oligosaccharides Varying in Chain Length (Tetramers and Hexamers), …

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Measurement Of Adhesion Of Sternal Wires To A Novel Bioactive Glass-Based Adhesive, Varinder Pal Singh Sidhu, Mark R. Towler, Marcello Papini Sep 2019

Measurement Of Adhesion Of Sternal Wires To A Novel Bioactive Glass-Based Adhesive, Varinder Pal Singh Sidhu, Mark R. Towler, Marcello Papini

Chemical and Biochemical Engineering Faculty Research & Creative Works

Stainless steel wires are the standard method for sternal closure because of their strength and rigidity, the simplicity of the process, and the short healing time that results from their application. Despite this, problems still exist with sternal stability due to micromotion between the two halves of the dissected and wired sternum. Recently, a novel glass-based adhesive was developed which, in cadaveric trials and in conjunction with wiring, was shown to restrict this micromotion. However, in order to avoid complications during resternotomy, the adhesive should adhere only to the bone and not the sternal wire. In this study, sternal wires …

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Lactonic Sophorolipid Increases Surface Wettability Of Poly- L -Lactic Acid Electrospun Fibers, Alexis M. Ziemba, Keith P. Lane, Bailey Balouch, Anthony R. D'Amato, Filbert Totsingan, Richard A. Gross, Ryan J. Gilbert Aug 2019

Lactonic Sophorolipid Increases Surface Wettability Of Poly- L -Lactic Acid Electrospun Fibers, Alexis M. Ziemba, Keith P. Lane, Bailey Balouch, Anthony R. D'Amato, Filbert Totsingan, Richard A. Gross, Ryan J. Gilbert

Chemical and Biochemical Engineering Faculty Research & Creative Works

The hydrophobicity of electro spun poly-l-lactic acid (PLLA) fibers hinders their integration with surrounding tissue for a variety of applications. In this study, we increased PLLA fiber hydrophilicity by incorporating the natural surfactant, lactonic sophorolipid (LSL). PLLA+LSL fibers had similar fiber morphology but significantly greater surface wettability, which suggested LSL accumulation on the fiber surface. Differential scanning calorimetry results also suggested that LSL was phase separated from PLLA. Despite the altered surface wettability of these fibers, there was no change in fibroblast adhesion. Future studies may explore the use of this natural surfactant to deliver bioactive factors to enhance fibroblast …

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Bioactive Glass Fiber Fabrication Via A Combination Of Sol-Gel Process With Electro-Spinning Technique, Malvika Nagrath, Adel Alhalawani, Alireza Rahimnejad Yazdi, Mark R. Towler Aug 2019

Bioactive Glass Fiber Fabrication Via A Combination Of Sol-Gel Process With Electro-Spinning Technique, Malvika Nagrath, Adel Alhalawani, Alireza Rahimnejad Yazdi, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

No abstract provided.

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High Octane Number Gasoline-Ether Blend, Tarek M. Aboul-Fotouh, Sherif K. Ibrahim, M. A. Sadek, Hany A. Elazab Jul 2019

High Octane Number Gasoline-Ether Blend, Tarek M. Aboul-Fotouh, Sherif K. Ibrahim, M. A. Sadek, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

Gasoline produced in Egypt is a low-grade gasoline that contains high concentration of harmful components that are having a toll on our environment. In addition, those pollutants cause countless diseases and deaths annually to the Egyptian population. This paper targets two main sectors in the production of commercial gasoline. The improvement engine efficiency through the upgrading of octane number is first experimented by using a blend stock that ranges from gasoline fractions and Isomerates. An optimum was then chosen depending on the results obtained from different tests. Through those experiments, it was determined which samples obeyed the EU regulation for …

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Physico-Chemical Characteristics Of Ethanol–Diesel Blend Fuel, Tarek M. Aboul-Fotouh, Eslam Alaa, M. A. Sadek, Hany A. Elazab Jul 2019

Physico-Chemical Characteristics Of Ethanol–Diesel Blend Fuel, Tarek M. Aboul-Fotouh, Eslam Alaa, M. A. Sadek, Hany A. Elazab

Chemical and Biochemical Engineering Faculty Research & Creative Works

In this research we are discussing the physicochemical characteristics of sweet diesel after desulphurization alone and also these characteristics are tested with the adding of high purity HPLC ethanol (99.9%). Those fuel properties of ethanol blended with diesel were experimentally determined to find their stability and to increase their properties and efficiency in the diesel engines. First, we made 4 blends of diesel with ethanol and the fifth sample was pure diesel. The samples were 0% ethanol and 100 % diesel, the second sample was 5% ethanol and 95 % diesel, the third sample was 10 % ethanol and 90% …

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Advanced Measurement Techniques For Enabling Multiphase Reactors And Flow Systems For Sustainable And Cleaner Processes, Muthanna H. Al-Dahhan Jul 2019

Advanced Measurement Techniques For Enabling Multiphase Reactors And Flow Systems For Sustainable And Cleaner Processes, Muthanna H. Al-Dahhan

Chemical and Biochemical Engineering Faculty Research & Creative Works

No abstract provided.

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Method Of Forming Microparticles For Use In Cell Seeding, Sutapa Barua, Chase Herman Jun 2019

Method Of Forming Microparticles For Use In Cell Seeding, Sutapa Barua, Chase Herman

Chemical and Biochemical Engineering Faculty Research & Creative Works

The present invention is directed to methods for forming microparticles useful for cell seeding and for conjugating protein to the surface of the microparticles. The method comprises co-injecting an organic solution of PLGA or other polymer with an aqueous solution into a flow focusing tube.

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