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Biomedical Engineering and Bioengineering Commons™
Open Access. Powered by Scholars. Published by Universities.®
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- Corrosion (3)
- Coatings (2)
- Humans (2)
- Prosthesis Failure (2)
- Surface Properties (2)
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- Acetabulum (1)
- Bacillus subtilis (1)
- Bioelectric effect (1)
- Biofilm (1)
- Biomaterials (1)
- Bone (1)
- Bone Cements (1)
- Bone Nails (1)
- Bone Screws (1)
- Bone Transplantation (1)
- Bone surgery (1)
- Broadband light absorption (1)
- Chromium (1)
- Chromium carbide (1)
- Cobalt-alloy (1)
- Colloids (1)
- Congenital surgery (1)
- Culture Techniques (1)
- EIS (1)
- Electrochemical current (1)
- Electrochemistry (1)
- Electron (1)
- Equipment Design (1)
- Femoral Fractures (1)
- Femur (1)
Articles 1 - 7 of 7
Full-Text Articles in Biomedical Engineering and Bioengineering
Differential Gene Expression To Investigate The Effects Of Low-Level Electrochemical Currents On Bacillus Subtilis., Robert Szkotak, Tagbo H R Niepa, Nikhil Jawrani, Jeremy L. Gilbert, Marcus B. Jones, Dacheng Ren
Differential Gene Expression To Investigate The Effects Of Low-Level Electrochemical Currents On Bacillus Subtilis., Robert Szkotak, Tagbo H R Niepa, Nikhil Jawrani, Jeremy L. Gilbert, Marcus B. Jones, Dacheng Ren
Biomedical and Chemical Engineering - All Scholarship
With the emergence and spread of multidrug resistant bacteria, effective methods to eliminate both planktonic bacteria and those embedded in surface-attached biofilms are needed. Electric currents at uA-mA/cm2 range are known to reduce the viability of bacteria. However, the mechanism of such effects is still not well understood. In this study, Bacillus subtilis was used as the model Gram-positive species to systematically investigate the effects of electrochemical currents on bacteria including the morphology, viability, and gene expression of planktonic cells, and viability of biofilm cells. The data suggest that weak electrochemical currents can effectively eliminate B. subtilis both as planktonic …
Structure And Optical Properties Of Self-Assembled Multicomponent Plasmonic Nanogels, Tao Cong, Satvik N. Wani, Peter Anthony Paynter, Radhakrishna Sureshkumar
Structure And Optical Properties Of Self-Assembled Multicomponent Plasmonic Nanogels, Tao Cong, Satvik N. Wani, Peter Anthony Paynter, Radhakrishna Sureshkumar
Biomedical and Chemical Engineering - All Scholarship
Multicomponent plasmonic nanogels (PNGs) capable of broadband absorption of light in the 400-700 nm wavelength range were synthesized by the self-assembly of metal nanoparticles with wormlike surfactant micelles. Small angle x-ray scattering and rheological experiments suggest that the nanoparticles bridge micelle fragments to aid the formation a stable gel phase with exceptional color uniformity. Their optical absorbance could be robustly tuned by changing the nanoparticle type (Au/Ag), size, shape, and/or concentration. The PNGs have relatively low viscosity and are thermoreversible. Potential applications to the manufacturing of coatings and interfaces for solar energy harvesting and reconfigurable optical devices can be envisioned.
Electrochemical Investigation Of Chromium Nanocarbide Coated Ti-6al-4v And Co-Cr-Mo Alloy Substrates, Viswanathan Swaminathan, Haitong Zeng, Daniel Lawrynowicz, Zongtao Zhang, Jeremy L. Gilbert
Electrochemical Investigation Of Chromium Nanocarbide Coated Ti-6al-4v And Co-Cr-Mo Alloy Substrates, Viswanathan Swaminathan, Haitong Zeng, Daniel Lawrynowicz, Zongtao Zhang, Jeremy L. Gilbert
Biomedical and Chemical Engineering - All Scholarship
This study investigated the electrochemical behavior of chromium nano-carbide cermet coating applied on Ti–6Al–4V and Co–Cr–Mo alloys for potential application as wear and corrosion resistant bearing surfaces. The cermet coating consisted of a highly heterogeneous combination of carbides embedded in a metal matrix. The main factors studied were the effect of substrate (Ti–6Al–4V vs. Co–Cr–Mo), solution conditions (physiological vs. 1 M H2O2 of pH 2), time of immersion (1 vs. 24 h) and post coating treatments (passivation and gamma sterilization). The coatings were produced with high velocity oxygen fuel (HVOF) thermal spray technique at atmospheric conditions to …
Focal Osteolysis At The Junctions Of A Modular Stainless-Steel Femoral Intramedullary Nail, Darron M. Jones, Lawrence Marsh, James V. Nepola, Joshua J. Jacobs, Anastasia K. Skipor, Robert M. Urban, Jeremy L. Gilbert, Josheph A. Buckwater
Focal Osteolysis At The Junctions Of A Modular Stainless-Steel Femoral Intramedullary Nail, Darron M. Jones, Lawrence Marsh, James V. Nepola, Joshua J. Jacobs, Anastasia K. Skipor, Robert M. Urban, Jeremy L. Gilbert, Josheph A. Buckwater
Biomedical and Chemical Engineering - All Scholarship
Background:
During routine follow-up of patients treated with a three-piece stainless-steel modular femoral nail, osteolysis and periosteal reaction around the modular junctions of some of the nails were noted on radiographs. The purpose of this study was to evaluate the prevalence, etiology, and clinical relevance of these radiographic findings.
Methods:
Forty-four femoral fractures or nonunions in forty-two patients were treated with a modular stainless-steel femoral intramedullary nail. Seventeen nails were excluded, leaving twenty-seven intramedullary nails in twenty-seven patients for this study. All patients had had a femoral diaphyseal fracture; nineteen had had an acute fracture and eight, a nonunion. These …
Current Concepts Review - Corrosion Of Metal Orthopaedic Implants, Joshua J. Jacobs, Jeremy L. Gilbert, Robert M. Urban
Current Concepts Review - Corrosion Of Metal Orthopaedic Implants, Joshua J. Jacobs, Jeremy L. Gilbert, Robert M. Urban
Biomedical and Chemical Engineering - All Scholarship
No abstract provided.
Fracture Of An Acetabular Component Inserted Without Cement: A Case Report, R T. Trousdale, D J. Berry, Joshua J. Jacobs, Jeremy L. Gilbert
Fracture Of An Acetabular Component Inserted Without Cement: A Case Report, R T. Trousdale, D J. Berry, Joshua J. Jacobs, Jeremy L. Gilbert
Biomedical and Chemical Engineering - All Scholarship
No abstract provided.
Intergranular Corrosion-Fatigue Failure Of Cobalt-Alloy Femoral Stems. A Failure Analysis Of Two Implants, Jeremy L. Gilbert, Christine A. Buckley, Joshua J. Jacobs, Kim C. Bertin, Michael R. Zernich
Intergranular Corrosion-Fatigue Failure Of Cobalt-Alloy Femoral Stems. A Failure Analysis Of Two Implants, Jeremy L. Gilbert, Christine A. Buckley, Joshua J. Jacobs, Kim C. Bertin, Michael R. Zernich
Biomedical and Chemical Engineering - All Scholarship
Two modular hip implants with a cobalt-alloy head and a cobalt-alloy stem were retrieved after a fracture had occurred in the neck region of the femoral component, eighty-five and seventy months after implantation. Both implants failed less than one millimeter distal to the taper junction between the head and the stem (outside of the taper). The fracture surfaces of the implant were investigated with the use of scanning electron microscopy, to determine the nature of the failure process. The fractures occurred at the grain boundaries of the microstructure and appeared to be the result of three factors: porosity at the …