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Nanoporous Graphene Integrated onto Bimodal Waveguide Biosensors for Detection of C-Reactive Protein.
ACS Appl Nano Mater
January 2025
Atomic Manipulation and Spectroscopy Group (AMS), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Bellaterra, 08193 Barcelona, Spain.
Despite the outstanding progress in photonic sensor devices, a major limitation for its application as label-free biosensors for biomedical analysis lies in the surface biofunctionalization step, that is, the reliable immobilization of the biorecognition element onto the sensor surface. Here, we report the integration of bottom-up synthesized nanoporous graphene onto bimodal waveguide interferometric biosensors as an atomically precise biofunctionalization scaffold. This combination leverages the high sensitivity of bimodal waveguide interferometers and the large functional surface area of nanoporous graphene to create highly sensitive, selective, and robust biosensors for the direct immunoassay detection of C-reactive protein (CRP), an inflammatory biomarker widely used in the clinical diagnosis of infections and sepsis.
View Article and Find Full Text PDFCellStudio: a Modular, Tunable and Accessible Platform for Analysis of Growth Factors Secretions in Cell Cultures.
ACS Appl Mater Interfaces
January 2025
Microfluidics Cluster UPV/EHU, BIOMICs Microfluidics Group, University of the Basque Country UPV/EHU, Vitoria-Gasteiz 01006, Spain.
Traditional cell culture methods face significant limitations in monitoring cell secretions with spatial and temporal precision. Advanced microsystems incorporating biosensors have been developed to address these challenges, but they tend to lack versatility, and their complexity, along with the requirement for specialized equipment, limits their broader adoption. CellStudio offers an innovative, user-friendly solution that exploits Printing and Vacuum Lithography combined with bead-based assays to create modular and tunable cell patterns surrounded by biosensors.
View Article and Find Full Text PDFPulmonary and serum cytokine profiles of patients with anti-ARS and anti-MDA5 antibodies.
J Autoimmun
January 2025
Department of Rheumatology, Dokkyo Medical University, Mibu, Tochigi, 321-0293, Japan.
The present study aimed to determine the pulmonary cytokine profiles of patients with anti-RNA synthetase (ARS) and anti-melanoma differentiation-associated protein 5 (MDA5) antibodies. The study included patients with ARS and MDA5 whose serum or bronchoalveolar fluid (BALF) was available. Sandwich enzyme-linked immunoassay microarray multiplex assay was used to measure 18 cytokine levels in serum and BALF.
View Article and Find Full Text PDFAptamer-Antibody Birecognized Sandwich SERRS Biosensor in Accurate and Rapid Identification of Intraoperative Parathyroid Hormone.
Anal Chem
January 2025
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, College of Energy, Discipline of Intelligent Instrument and Equipment, Cancer Center and Department of Breast and Thyroid Surgery, Department of Ultrasound, Xiang'an Hospital of Xiamen University, School of Medicine, Laboratory Animal Center Xiamen University, Xiamen University, Xiamen 361005, China.
With the increasing incidence of thyroid cancer worldwide and the increasing demand for surgery, the risk of parathyroid injury is also increasing, which will lead to postoperative hypoparathyroidism (HP) and hypocalcemia. In order to improve the quality of life of patients after surgery, there is an urgent need to develop a novel platform that can identify the parathyroid gland immediately during surgery. The parathyroid gland promotes the increase of blood calcium concentration by secreting parathyroid hormone (PTH).
View Article and Find Full Text PDFAn integrated immunofluorescent detection system for automated and sensitive protein quantification based on a microfluidic flow cytometry platform.
Anal Chim Acta
March 2025
Holosensor Medical Technology Ltd, Room 12, No. 1798, Zhonghuayuan West Road, Yushan Town, Suzhou, 215000, China; Department of Veterinary Medicine, University of Cambridge, Cambridge, UK. Electronic address:
Rapid and sensitive protein detection methods are of benefit to clinical diagnosis, pathological mechanism research, and infection prevention. However, routine protein detection technologies, such as enzyme-linked immunosorbent assay and Western blot, suffer from low sensitivity, poor quantification and labourious operation. Herein, we developed a fully automated protein analysis system to conduct fast protein quantification at the single molecular level.
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