A polymer microarray based on the supramolecular ureido-pyrimidinone (UPy) moiety is fabricated to screen antimicrobial materials for their ability to support cell adhesion. UPy-functionalized additives, either cell-adhesive, antimicrobial or control peptides, are used, and investigated in different combinations at different concentrations, resulting in a library of 194 spots. These are characterized on composition and morphology to evaluate the microarray fabrication. Normal human dermal fibroblasts are cultured on the microarrays and cell adhesion to the spots is systematically analyzed. Results demonstrate enhanced cell adhesion on spots with combinations including the antimicrobial peptides. This study clearly proves the power of the high throughput approach in combination with supramolecular molecules, to screen additive libraries for desired biological response.
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http://dx.doi.org/10.1002/marc.202300638 | DOI Listing |
Eur J Clin Microbiol Infect Dis
December 2024
Faculty of Public Health, Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand.
Purpose: Streptococcus suis serotype 14 is the second most prevalent serotype being highly prevalent in Southeast Asia. This study aimed to characterize genetic background, population structure, virulent genes, antimicrobial-resistant genes, and virulence of human S. suis serotype 14.
View Article and Find Full Text PDFMar Environ Res
December 2024
Shenzhen Key Laboratory of Marine Microbiome Engineering Institute for Advanced Study, Shenzhen University, Shenzhen, China. Electronic address:
The ongoing decline in seawater pH, driven by the absorption of excess atmospheric CO, represents a major environmental issue. This reduction in pH can interact with metal pollution, resulting in complex effects on marine phytoplankton. In this study, we examined the combined impacts of seawater acidification and copper (Cu) exposure on the marine diatom Phaeodactylum tricornutum.
View Article and Find Full Text PDFJ Tissue Viability
December 2024
Institute of Nanoscience & Nanotechnology, Kafrelsheikh University, Kafr ElSheikh, 33516, Egypt; Nile Valley University, Fayoum, 63518 Egypt. Electronic address:
Despite the advances in the development of therapeutic wearable wound-healing patches, lack self-healing properties and strong adhesion to diabetic skin, hindering their effectiveness. We propose a unique, wearable patch made from a 3D organo-hydrogel nanocomposite containing polydopamine, titanium dioxide nanoparticles, and silver quantum dots (PDA-TiO@Ag). The designed patch exhibits ultra-stretchable, exceptional-self-healing, self-adhesive, ensuring conformal contact with the skin even during movement.
View Article and Find Full Text PDFPoult Sci
December 2024
Yunnan Rural Revitalizing Education Institute, Yunnan Open University, Kunming 650101, Yunnan Province, PR China; Key Laboratory of Buffalo Genetics, Breeding and Reproduction Technology, Guangxi Bufialo Research, Institute, Chinese Academy of Agricultural Sciences, Nanning 530001, PR China; College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, Yunnan Province, PR China. Electronic address:
CD8 subunit alpha (CD8A) is an important gene in immunity and is involved in the functional regulation of T lymphocytes. However, the specific role and regulatory mechanism of CD8A in chicken T lymphocytes remain unknown. In this study, we overexpressed and interfered with CD8A in chicken T lymphocytes and found that interfering with CD8A expression inhibited the proliferation and induced the apoptosis of T lymphocytes and that the overexpression of CD8A promoted T lymphocyte activation.
View Article and Find Full Text PDFVet Sci
December 2024
Department of Veterinary Sciences, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal.
Cutaneous squamous cell carcinoma (CSCC) in dogs is a locally invasive tumor that typically occurs in areas of poorly pigmented skin due to sun exposure. Identifying new biomarkers, such as syndecan-1 (CD138) and E-cadherin, is fundamental for tumor diagnosis and prognosis. Dysregulation of syndecan-1, expressed in epithelial tissue, fibroblasts, and plasma cells, is associated with poor prognosis in several types of cancer.
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