Chemical and Petroleum Engineering Scholarly Works
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Stem cell secretome-rich nanoclay hydrogel: a dual action therapy for cardiovascular regeneration†
(Royal Society of Chemistry, 2016-03-31)A nanocomposite hydrogel with photocrosslinkable micro-porous networks and a nanoclay component was successfully prepared to control the release of growth factor-rich stem cell secretome. The proven pro-angiogenic and ... -
Nanocomposite hydrogels: an emerging biomimetic platform for myocardial therapy and tissue engineering
(Future Medicine, 2015-05)Recent years have seen a significant rise in patient survival rate after myocardial infarction, commonly known as heart attack. This is mainly due to improvement in hospital instrument facilities, clinical management system, ... -
Subcritical CO2 Sintering of Microspheres of Different Polymeric Materials to Fabricate Scaffolds for Tissue Engineering
(Elsevier, 2013-12-01)The aim of this study was to use CO2 at sub-critical pressures as a tool to sinter 3D, macroporous, microsphere-based scaffolds for bone and cartilage Tissue Engineering Porous scaffolds composed of ~200 µm microspheres ... -
Effect of different sintering methods on bioactivity and release of proteins from PLGA microspheres
(Elsevier, 2013-10)Macromolecule release from poly(d,l-lactide-co-glycolide) (PLGA) microspheres has been well-characterized, and is a popular approach for delivering bioactive signals from tissue-engineered scaffolds. However, the effect ... -
Engineered Biomaterials to Enhance Stem Cell-Based Cardiac Tissue Engineering and Therapy
(Wiley, 2016-03-08)Cardiovascular disease is a leading cause of death worldwide. Since adult cardiac cells are limited in their proliferation, cardiac tissue with dead or damaged cardiac cells downstream of the occluded vessel does not ... -
Phospholipid Composition Modulates Carbon Nanodiamond-Induced Alterations in Phospholipid Domain Formation
(American Chemical Society, 2015-05-12)The focus of this work is to elucidate how phospholipid composition can modulate lipid nanoparticle interactions in phospholipid monolayer systems. We report on alterations in lipid domain formation induced by anionically ... -
Human umbilical cord mesenchymal stromal cells in a sandwich approach for osteochondral tissue engineering
(Wiley, 2011-10)Cell sources and tissue integration between cartilage and bone regions are critical to successful osteochondral regeneration. In this study, human umbilical cord mesenchymal stromal cells (hUCMSCs), derived from Wharton’s ... -
Using chondroitin sulfate to improve the viability and biosynthesis of chondrocytes encapsulated in interpenetrating network (IPN) hydrogels of agarose and poly(ethylene glycol) diacrylate
(Springer Verlag, 2012-01)We recently introduced agarose-poly(ethylene glycol) diacrylate (PEGDA) interpenetrating network (IPN) hydrogels to cartilage tissue engineering that were able to encapsulate viable cells and provide a significant improvement ... -
Three-dimensional Macroscopic Scaffolds With a Gradient in Stiffness for Functional Regeneration of Interfacial Tissues
(Wiley, 2010-09-01)A novel approach has been demonstrated to construct biocompatible, macroporous 3-D tissue engineering scaffolds containing a continuous macroscopic gradient in composition that yields a stiffness gradient along the axis ... -
PLGA-chitosan/PLGA-alginate Nanoparticle Blends as Biodegradable Colloidal Gels for Seeding Human Umbilical Cord Mesenchymal Stem Cells
(Wiley, 2011-03-01)The natural polymers chitosan and alginate represent an attractive material choice for biodegradable inplants. These were used as coating materials to make positively and negatively charged PLGA nanoparticles, respectively. ... -
The bioactivity of agarose-PEGDA interpenetrating network hydrogels with covalently immobilized RGD peptides and physically entrapped aggrecan
(Elsevier, 2014-04)Our previous reports of interpenetrating networks (IPNs) have demonstrated drastic improvements in mechanical performance relative to individual constituent networks while maintaining viability of encapsulated cells. The ... -
A multilayered microfluidic blood vessel-like structure
(Springer Verlag, 2015-10)There is an immense need for tissue engineered blood vessels. However, current tissue engineering approaches still lack the ability to build native blood vessel-like perfusable structures with multi-layered vascular walls. ... -
Adhesion of Pancreatic Beta Cells to Biopolymer Films
(Wiley, 2009-08)Dramatic reversal of Type 1 diabetes in patients receiving pancreatic islet transplants continues to prompt vigorous research concerning the basic mechanisms underlying patient turnaround. At the most fundamental level, ... -
Tuning mechanical performance of poly(ethylene glycol) and agarose interpenetrating network hydrogels for cartilage tissue engineering
(Elsevier, 2013-08-06)Hydrogels are attractive for tissue engineering applications due to their incredible versatility, but they can be limited in cartilage tissue engineering applications due to inadequate mechanical performance. In an effort ... -
Injectable PLGA based Colloidal Gels for Zero-order Dexamethasone Release in Cranial Defects
(Elsevier, 2010-06)Bone fillers have emerged as an alternative to the invasive surgery often required to repair skeletal defects. Achieving controlled release from these materials is desired for accelerating healing. Here, oppositely-charged ... -
Microsphere-Based Scaffolds for Cartilage Tissue Engineering: Using Sub-critical CO2 as a Sintering Agent
(Elsevier, 2010-01)Shape-specific, macroporous tissue engineering scaffolds were fabricated and homogeneously seeded with cells in a single step. This method brings together CO2 polymer processing and microparticle-based scaffolds in a manner ... -
Musculoskeletal tissue engineering with human umbilical cord mesenchymal stromal cells
(Future Medicine, 2011-01)Multipotent mesenchymal stromal cells (MSCs) hold tremendous promise for tissue engineering and regenerative medicine, yet with so many sources of MSCs, what are the primary criteria for selecting leading candidates? ... -
Tailoring biomaterial surface properties to modulate host-implant interactions: implication in cardiovascular and bone therapy
(Royal Society of Chemistry, 2015-10-16)Host body response to a foreign medical device plays a critical role in defining its fate post implantation. It is thus important to control host-material interactions by designing innovative implant surfaces. In the recent ... -
Reversible and Non-Reactive Cellulose Separations from Ionic Liquid Mixtures with Compressed Carbon Dioxide
(Royal Society of Chemistry, 2016-08-14)A novel physical (non-reactive) separation of cellulose from an ionic liquid (IL) / cosolvent mixture by compressed carbon dioxide is presented. The precipitation is completely reversible and rapid within small changes of ... -
Understanding complete oxidation of methane on spinel oxides at a molecular level
(Nature Publishing Group, 2015-08-04)It is crucial to develop a catalyst made of earth-abundant elements highly active for a complete oxidation of methane at a relatively low temperature. NiCo2O4 consisting of earth-abundant elements which can completely ...
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