John T. Grant
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View article: What's in a Name? “ESCA” or “XPS”? A Discussion of Comments Made by Kai Siegbahn More Than Four Decades Ago Regarding the Name of the Technique
What's in a Name? “ESCA” or “XPS”? A Discussion of Comments Made by Kai Siegbahn More Than Four Decades Ago Regarding the Name of the Technique Open
In an interview in 1982, which was 1 year after he shared the Nobel Prize, Kai Siegbahn was asked about his opinion regarding the name of the technique he had developed. Siegbahn had named it “electron spectroscopy for chemical analysis” (…
View article: Characterization of Micro-Threaded Stem Taper Surfaces of Cementless Hip Endoprostheses
Characterization of Micro-Threaded Stem Taper Surfaces of Cementless Hip Endoprostheses Open
We investigated micro-threaded stem taper surface and its impact on premature failures, aseptic loosening, and infection in cementless hip endoprostheses. Our study focused on the fretting, and crevice corrosion of micro-threaded tapers, a…
View article: Characterization of Micro-threaded Stem Taper Surface of Cementless Hip Endoprostheses
Characterization of Micro-threaded Stem Taper Surface of Cementless Hip Endoprostheses Open
We investigated the micro-threaded stem taper surface and the impact on premature failures, aseptic loosening, and infection. We have focused on the fretting, and crevice corrosion of micro-threaded tapers, as well as the characterization …
View article: The Impact of Al2O3 Particles from Grit-Blasted Ti6Al7Nb (Alloy) Implant Surfaces on Biocompatibility, Aseptic Loosening, and Infection
The Impact of Al2O3 Particles from Grit-Blasted Ti6Al7Nb (Alloy) Implant Surfaces on Biocompatibility, Aseptic Loosening, and Infection Open
For the improvement of surface roughness, titanium joint arthroplasty (TJA) components are grit-blasted with Al2O3 (corundum) particles during manufacturing. There is an acute concern, particularly with uncemented implants, about polymeric…
View article: Mechanisms of Premature Fracture in Modular Neck Stems Made of CoCrMo/Ti6Al4V and Ti6Al4V/Ti6Al4V Alloy
Mechanisms of Premature Fracture in Modular Neck Stems Made of CoCrMo/Ti6Al4V and Ti6Al4V/Ti6Al4V Alloy Open
In this paper, we present the mechanisms of premature fracture of modular neck stems in two case studies: (I) when the neck and stem are both made of the same Ti6Al4V alloy, and (II) when the neck and stem are made from two different alloy…
View article: Challenges in surface analysis
Challenges in surface analysis Open
SPECIALTY GRAND CHALLENGE article Front. Anal. Sci., 29 June 2023Sec. Surface Analysis Volume 3 - 2023 | https://doi.org/10.3389/frans.2023.1234943
View article: Laser‐Fabricated 2D Molybdenum Disulfide Electronic Sensor Arrays for Rapid, Low‐Cost, Ultrasensitive Detection of Influenza A and SARS‐Cov‐2
Laser‐Fabricated 2D Molybdenum Disulfide Electronic Sensor Arrays for Rapid, Low‐Cost, Ultrasensitive Detection of Influenza A and SARS‐Cov‐2 Open
Multiplex electronic antigen sensors for detection of SARS‐Cov‐2 spike glycoproteins and hemagglutinin from influenza A are fabricated using scalable processes for straightforward transition to economical mass‐production. The sensors utili…
View article: Biofunctionalized Two-dimensional MoS<sub>2</sub> Receptors for Rapid Response Modular Electronic SARS-CoV-2 and Influenza A Antigen Sensors
Biofunctionalized Two-dimensional MoS<sub>2</sub> Receptors for Rapid Response Modular Electronic SARS-CoV-2 and Influenza A Antigen Sensors Open
Multiplex electronic antigen sensors for detection of SARS-Cov-2 spike glycoproteins or hemagglutinin from Influenza A in liquid samples with characteristics resembling extracted saliva were fabricated using scalable processes with potenti…
View article: Tribocorrosive Study of New and In Vivo Exposed Nickel Titanium and Stainless Steel Orthodontic Archwires
Tribocorrosive Study of New and In Vivo Exposed Nickel Titanium and Stainless Steel Orthodontic Archwires Open
The surface, corrosion and wear properties of new and in vivo exposed nickel titanium (NiTi) and stainless steel (SS) archwires used in orthodontic treatment were investigated. Electrochemical and tribo-electrochemical tests in artificial …
View article: Proliferation of Faulty Materials Data Analysis in the Literature
Proliferation of Faulty Materials Data Analysis in the Literature Open
As a group of subject matter experts in X-ray photoelectron spectroscopy (XPS), we write this letter to raise awareness of the epidemic of poor and incorrect materials data analysis in the Literature. This is a chronic and growing problem …
View article: Practical guides for x-ray photoelectron spectroscopy: First steps in planning, conducting, and reporting XPS measurements
Practical guides for x-ray photoelectron spectroscopy: First steps in planning, conducting, and reporting XPS measurements Open
Over the past three decades, the widespread utility and applicability of x-ray photoelectron spectroscopy (XPS) in research and applications has made it the most popular and widely used method of surface analysis. Associated with this incr…
View article: Surface chemistry and microstructure of metallic biomaterials for hip and knee endoprostheses
Surface chemistry and microstructure of metallic biomaterials for hip and knee endoprostheses Open
The surface chemistry and microstructures of titanium alloys (both new and used) and CoCrMo alloys used for hip and knee endoprostheses were determined using SEM (morphology), EBSD (phase analysis), AES and XPS (surface chemistry). Two new…