Photonic Inks with Dual-Layer Security Features by Encapsulation of Color Tunable Fluorescent Dyes in PMMA Colloidal Microspheres.

To counter economic terrorism by preventing counterfeit currency, documents and high-value commercial products, new-generation security inks with multiple safety features are required. Herein, color-tunable pyrylium and pyridinium dye-encapsulated polymethyl methacrylate (PMMA) colloidal microspheres are reported to exhibiting brilliant emission and photonic properties. A combination of the PMMA colloidal photonic ink having structural color variation and the dye-encapsulated colloidal photonic ink with fluorescence modulation is used for security labeling.

Cuttlefish-Bone-Derived Biomaterials in Regenerative Medicine, Dentistry, and Tissue Engineering: A Systematic Review.

Background: Marine ecosystems, covering 70% of Earth's surface, hold immense biodiversity and potential for biomaterials. Cuttlefish bone (CB) and marine resources have gained attention as eco-friendly biomaterials.

Objectives: We aim to comprehensively study biomedical applications of CB-derived materials.

The Relationship Between Pre-Pandemic Comorbidities With SARS-CoV-2 Infections and Hospitalizations in Black Versus White Military Service Members: A Retrospective Study.

Introduction: Comorbidities such as hypertension, diabetes mellitus, asthma, and cardiovascular conditions have been reported to worsen the clinical progression of coronavirus disease 2019 (COVID-19) and related hospitalizations. Furthermore, the COVID-19 pandemic has disproportionately affected the historically marginalized groups, i.e.

Exogenous Ochronosis: Clinicopathological Correlation in Indian Patients and the Practical Applicability of the Dogliotti and Phillips Classification Systems.

Exogenous ochronosis (EO) results as a complication of long-term usage of skin lightening creams containing hydroquinone or other bleaching agents. Duration of use and concentration of hydroquinone in the product are noted to be key factors that decide the occurrence of EO. With more cases being reported globally, current classification systems lack practical applicability and may not be adequate for detecting early cases.