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Stimuli-Chromic Oxazolidine Latex Nanoparticles for Dual-Responsive pH-Sensors and Rewritable Halochromic Papers: A Physicochemical Study on Colorimetric and Fluorimetric Signals.
ACS Appl Mater Interfaces
January 2025
Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran.
Oxazolidine is a new category of stimuli-chromic compounds that has unique intelligent behaviors such as halochromism, hydrochromism, solvatochromism, and ionochromism, all of which have potential applications for designing and constructing chemosensors by using functionalized-polymer nanocarriers. Here, the poly(MMA--HEMA) based nanoparticles were synthesized by emulsion copolymerizing methyl methacrylate (MMA) and 2-hydroxyethyl methacrylate (HEMA) in different copolymer compositions. The poly(MMA--HEMA) based nanoparticles were modified physically with tertiary amine-functionalized oxazolidine (as an intelligent pH-responsive organic dye) to prepare halochromic latex nanoparticles.
View Article and Find Full Text PDFDetermination of an Effective Sanitizing Procedure for Listeria innocua in Personal Protective Equipment Used in Dairy Facilities.
J Food Prot
January 2025
Department of Food Science & Technology, University of Nebraska-Lincoln. Lincoln, NE 68588 USA; The Food Processing Center, University of Nebraska-Lincoln. Lincoln, NE 68588, USA. Electronic address:
The presence of Listeria monocytogenes in the dairy environment remains a food safety challenge. The source of microbial contamination may include employees and their personal protective equipment (PPE). This study investigated the effectiveness of cleaning protocols (i.
View Article and Find Full Text PDFThe Topographic Map of the Midfoot: Implication for Improving Safety of Dorsal Approach of Midfoot Surgeries.
J Am Acad Orthop Surg Glob Res Rev
January 2025
From the Department of Anatomy, School of Medicine, Marmara University, Basibuyuk Yolu, Maltepe, Istanbul, Turkey (Dr. Ismailoglu, Dr. Sehirli, and Dr. Ayingen); the Department of Anatomy, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Atasehir, Istanbul, Turkey (Dr. Bayramoglu and Dr. Savasan); and the Department of Orthopedic Surgery, Faculty of Medicine, Acibadem Mehmet Ali Aydinlar University, Atasehir, Istanbul, Turkey (Dr. Kocaoglu).
Purpose: The surgical approach for midfoot injuries classically requires dual dorsal incision and identification of the neurovascular structures that are susceptible to injury during the surgery. The aim of this study was to map the topographic anatomy of the dorsum of the foot along with tarsal joints for the dorsal approach of midfoot surgery that would facilitate the surgery and minimize the risk of neurovascular injuries for surgeons who specially focus on foot and ankle injuries.
Methods: The dorsum of the foot was evaluated in 12 feet injected with latex containing a red colorant to visualize the arterial vessels.
Study of the synergistic properties of copaiba oil co-electrospun with poly(L-co-D,L lactic acid) and natural rubber latex for application in bioactive wound dressings.
Int J Biol Macromol
December 2024
Post-Graduation Program in Materials Sciences (PPGCM), Federal University of São Carlos (UFSCar), 18052-780, Brazil; Laboratory of Biomaterials, Faculty of Medical Sciences and Health (FCMS), Pontifical Catholic University of São Paulo (PUC-SP), 18030-070, Brazil; Mechanical Engineering Faculty (FEM), State University of Campinas (UNICAMP), 13083-970, Brazil; Post-Graduation Program of Biomaterials and Regenerative Medicine (PPGBMR), Surgery Department, (PUC-SP), 18030-070, Brazil.
Wound healing is a complex process involving a sequence of factors that can be disrupted, negatively impacting the quality of life for patients and overburdening healthcare systems. Advanced dressings obtained by electrospinning are highlighted by the optimization of this process, allowing air exchange and protection against microorganisms. Aiming to develop bioactive dressings, this study investigated the physicochemical, mechanical, microbiological, and in vitro biological properties of membranes containing 25 %, 50 %, 75 %, and 90 % copaiba oil (CO) co-electrospun with poly(L-co-D,L-lactic acid) (PLDLA) and natural rubber latex (NR).
View Article and Find Full Text PDFMultifunctional ZnO-Loaded Colloidosomes with Multiple Synergies as a UV Filter.
ACS Appl Mater Interfaces
January 2025
State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China.
ZnO nanoparticles with high safety and stability are often used as active ingredients in sunscreens to protect the skin from ultraviolet rays. However, ZnO nanoparticles are easy to agglomerate, which will significantly affect the ultraviolet absorption and bacteriostatic properties, and the reactive oxygen species induced by the photocatalytic activity may result in irreversible secondary damage to the skin. Herein, the ZnO nanoparticles are dispersed uniformly on the surface of latex particles, and these composite particles are used as shell materials to construct self-assembled colloidosomes by high-gravity technology, which can improve the application properties with synergistic enrichment of the hollow structure.
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