Publications by authors named "A J Ruff"
Purpose: As the pancreas is a low contrast visibility organ, pancreatic ductal adenocarcinoma detection is challenging due to subtle attenuation differences between tumor and pancreatic parenchyma. Photon counting CT (PCCT) has superior iodine contrast-to-noise ratio than conventional CT and also affords the creation of low keV virtual monoenergetic images, both of which increase adenocarcinoma conspicuity. The purpose therefore was to identify the optimal virtual monoenergy for visualizing PDAC during the pancreatic parenchymal phase of enhancement at PCCT using both quantitative and qualitative analyses.
View Article and Find Full Text PDFFood industry side streams: an unexploited source for biotechnological phosphorus upcycling.
Curr Opin Biotechnol
December 2024
The phosphorus shortage is an unavoidable challenge that requires strategies to replace phosphorus sourced from ores. Food industry by-products are an unscoped resource for sustainable phosphorus recovery. Recent advances include biotechnological phosphorus upcycling from phytate-rich plant residues to polyphosphate as a food additive.
View Article and Find Full Text PDFMany organic dyes are fluorescent in solution. In the solid state, however, quenching processes often dominate, hampering material science applications such as light filters, light-emitting devices, or coding tags. We show that the dimethylene-cyclopropanide scaffold can be used to form two structurally different types of chromophores, which feature fluorescence quantum yields up to 0.
View Article and Find Full Text PDFArticle Synopsis
- Side streams from the milling industry are rich in nutrients but have high phosphorus levels, mainly as phytate, which limits their use in animal feed.
- A biotechnological process using enzymatic hydrolysis effectively reduces phosphorus content in these streams, transforming them into suitable animal feed.
- Batch experiments showed significant phosphorus reductions (up to 92%) in rye bran, and the process allows for the recovery of phosphorus from wastewater while being scalable and easy to implement.
Purpose: This study aimed to compare the image quality of portal venous phase-derived virtual noncontrast (VNC) images from photon-counting computed tomography (PCCT) with energy-integrating dual-energy computed tomography (EI-DECT) in the same patient using quantitative and qualitative analyses.
Methods: Consecutive patients retrospectively identified with available portal venous phase-derived VNC images from both PCCT and EI-DECT were included. Patients without available VNC in picture archiving and communication system in PCCT or prior EI-DECT and non-portal venous phase acquisitions were excluded.