Publications by authors named "Kunal N Vyas"

Cerenkov luminescence imaging (CLI) is a novel imaging technology that might have the ability to assess surgical margins intraoperatively during prostatectomy using Ga-prostate-specific membrane antigen (Ga-PSMA-11). This study evaluated the accuracy of CLI compared with histopathology and, as an exploratory objective, investigated the characteristics of the identified chemiluminescence signal. After intravenous injection of a mean Ga-PSMA-11 activity of 69 MBq intraoperatively, all excised specimens were imaged with CLI.

View Article and Find Full Text PDF

Introduction: In women undergoing breast-conserving surgery (BCS), 20-25% require a re-operation as a result of incomplete tumour resection. An intra-operative technique to assess tumour margins accurately would be a major advantage. A novel method for intraoperative margin assessment was developed by applying a thin flexible scintillating film to specimens-flexible autoradiography (FAR) imaging.

View Article and Find Full Text PDF

Arrays of interacting 2D nanomagnets display unprecedented electromagnetic properties via collective effects, demonstrated in artificial spin ices and magnonic crystals. Progress toward 3D magnetic metamaterials is hampered by two challenges: fabricating 3D structures near intrinsic magnetic length scales (sub-100 nm) and visualizing their magnetic configurations. Here, we fabricate and measure nanoscale magnetic gyroids, periodic chiral networks comprising nanowire-like struts forming three-connected vertices.

View Article and Find Full Text PDF

Purpose: Currently, approximately 11-38% of prostate cancer (PCa) patients undergoing radical prostatectomy have a positive surgical margin (PSM) on histopathology. Cerenkov luminescence imaging (CLI) using Ga-prostate-specific membrane antigen (Ga-PSMA) is a novel technique for intraoperative margin assessment. The aim of this first-in-man study was to investigate the feasibility of intraoperative Ga-PSMA CLI.

View Article and Find Full Text PDF
Article Synopsis
  • We created a new type of microscope that can see tiny magnetic patterns in 3D, which helps us understand small magnetic pieces better.
  • This microscope can detect very small changes in magnetic strength, allowing us to measure things really accurately.
  • Our setup works well with both a special magnetic sensor and a regular microscope, making it useful for studying things like tiny living organisms and advanced technology using magnetism.
View Article and Find Full Text PDF

Microarrays and suspension-based assay technologies have attracted significant interest over the past decade with applications ranging from medical diagnostics to high throughput molecular biology. The throughput and sensitivity of a microarray will always be limited by the array density and slow reaction kinetics. Suspension (or bead) based technologies offer a conceptually different approach, improving detection by substituting a fixed plane of operation with many individually distinguishable microcarriers.

View Article and Find Full Text PDF