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Ultra-Sensitive Detection of Bacterial Spores via SERS.
ACS Sens
January 2025
Department of Physics, Umeå University, Umeå SE-901 87, Sweden.
Bacterial spores are highly resilient and capable of surviving extreme conditions, making them a persistent threat in contexts such as disease transmission, food safety, and bioterrorism. Their ability to withstand conventional sterilization methods necessitates rapid and accurate detection techniques to effectively mitigate the risks they present. In this study, we introduce a surface-enhanced Raman spectroscopy (SERS) approach for detecting spores by targeting calcium dipicolinate acid (CaDPA), a biomarker uniquely associated with bacterial spores.
View Article and Find Full Text PDFInnovative Ricin Toxin Detection: Unraveling Apurinic/Apyrimidinic Lyase Activity and Developing Fluorescence Sensors.
Anal Chem
January 2025
State Key Laboratory of Pathogen and Biosecurity, Academy of Military Medical Sciences, Beijing 100071, China.
Ricin toxin (RT) is a potential bioterrorism agent because of its high potency, extremely small lethal dose, ease of preparation, and notable stability. Therefore, a portable method is urgently required to efficiently detect and determine the presence of toxicity of RT and evaluate its potency for public health monitoring and counter-bioterrorism responses. Currently, enzyme-based assays for detecting RT mainly focus on its -glycosidase activity.
View Article and Find Full Text PDFBreaking the cellular defense: the role of autophagy evasion in virulence.
Front Cell Infect Microbiol
January 2025
Department of Molecular Pathology and Biology, Military Faculty of Medicine, University of Defence, Hradec Kralove, Czechia.
Many pathogens have evolved sophisticated strategies to evade autophagy, a crucial cellular defense mechanism that typically targets and degrades invading microorganisms. By subverting or inhibiting autophagy, these pathogens can create a more favorable environment for their replication and survival within the host. For instance, some bacteria secrete factors that block autophagosome formation, while others might escape from autophagosomes before degradation.
View Article and Find Full Text PDFLearning from Hindsight: Examining Autonomic, Inflammatory, and Endocrine Stress Biomarkers and Mental Health in Healthy Terrorism Survivors Many Years Later.
Prehosp Disaster Med
January 2025
Assistant Professor, Department of Internal Medicine, UT Southwestern Medical Center, Statistician/Section Chief of Analytics, Research Service, VA North Texas HCS, Dallas, TexasUSA.
Introduction: Terrorism and trauma survivors often experience changes in biomarkers of autonomic, inflammatory and hypothalamic-pituitary-adrenal (HPA) axis assessed at various times. Research suggests interactions of these systems in chronic stress.
Study Objective: This unprecedented retrospective study explores long-term stress biomarkers in three systems in terrorism survivors.
Development of Effective Medical Countermeasures Against the Main Biowarfare Agents: The Importance of Antibodies.
Microorganisms
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Targeted Therapy Team, Institute for Cancer Research, 237 Fulham Road, London SW3 6JB, UK.
The COVID-19 and mpox crisis has reminded the world of the potentially catastrophic consequences of biological agents. Aside from the natural risk, biological agents can also be weaponized or used for bioterrorism. Dissemination in a population or among livestock could be used to destabilize a nation by creating a climate of terror, by negatively impacting the economy and undermining institutions.
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