Synthesis of controlled-size starch nanoparticles and superparamagnetic starch nanocomposites by microemulsion method.

In this study, a synthesis process based on the microemulsion method (ME) was developed with the aim to produce controlled-size starch nanoparticles (SNPs). Several formulations were tested for the preparation of the W/O microemulsions varying the organic/aqueous phase ratios and co-stabilizers concentrations. SNPs were characterized in terms of size, morphology, monodispersity and crystallinity.

Multiple lineages of monkeypox virus detected in the United States, 2021-2022.

Monkeypox is a viral zoonotic disease endemic in Central and West Africa. In May 2022, dozens of non-endemic countries reported hundreds of monkeypox cases, most with no epidemiological link to Africa. We identified two lineages of monkeypox virus (MPXV) among two 2021 and seven 2022 US monkeypox cases: the major 2022 outbreak variant called B.

Monkeypox Outbreak - Nine States, May 2022.

On May 17, 2022, the Massachusetts Department of Public Health (MDPH) Laboratory Response Network (LRN) laboratory confirmed the presence of orthopoxvirus DNA via real-time polymerase chain reaction (PCR) from lesion swabs obtained from a Massachusetts resident. Orthopoxviruses include Monkeypox virus, the causative agent of monkeypox. Subsequent real-time PCR testing at CDC on May 18 confirmed that the patient was infected with the West African clade of Monkeypox virus.

Management of pelvic organ prolapse during pregnancy: Case report.

During pregnancy, pelvic organ prolapse is uncommon and is associated with adverse outcomes such as vaginal infection, cervical ulceration, and preterm delivery. Treatment includes conservative and surgical management during pregnancy. A 32-year-old woman presented with a history of vaginal delivery eight months earlier reported the sensation of a vaginal mass lasting seven months.

Cobalt Minimisation in Violet CoPO Pigment.

This study considers the limitations of cobalt violet orthophosphate, CoPO, in the ceramic industry due to its large amount of cobalt. MgCoPO (0 ≤ x ≤ 3) solid solutions with the stable CoPO structure were synthesised via the chemical coprecipitation method. The formation of solid solutions between the isostructural CoPO and MgPO compounds decreased the toxically large amount of cobalt in this inorganic pigment and increased the melting point to a temperature higher than 1200 °C when x ≥ 1.

Ag- and Sr-enriched nanofibrous titanium phosphate phases as potential antimicrobial cement and coating for a biomedical alloy.

Biomaterials and their surfaces regulate the biological response and ultimately the quality of healing at a possible site of implantation. The physical, chemical and topographical properties of implants' surfaces play a decisive role in the biological integration process for their immediate loading and long-term success. Since at this level of biological interaction nano-dimensionality is basically entailed, bio-functional nanostructured composites either as filling/cement or coating to metallic implants are required.

Kinetic Analysis of the Thermal Decomposition of Iron(III) Phosphates: Fe(NH)PO and Fe(ND)PO.

The hydrothermal synthesis and both the chemical and structural characterization of a diamin iron phosphate are reported. A new synthetic route, by using -butylammonium dihydrogen phosphate as a precursor, leads to the largest crystals described thus far for this compound. Its crystal structure is determined from single-crystal X-ray diffraction data.

A prospective, randomised controlled trial evaluating the effectiveness of the fluid immersion simulation system vs an air-fluidised bed system in the acute postoperative management of pressure ulcers: A midpoint study analysis.

The use of pressure-offloading support surfaces is considered the standard of care for pressure ulcers (PUs) by most surgeons. The fluid immersion simulation system (FIS) has shown significant results in previous studies. We compared it, for the first time, with a representative air-fluidised bed (AFB) for outcomes related to post-surgical flap closures.

Persistent organic pollutants and porphyrins biomarkers in penguin faeces from Kopaitic Island and Antarctic Peninsula.

Polychlorinated biphenyl (PCB) levels were determined in the faeces of three Antarctic Peninsula penguin species to assess viability as a non-invasive approach for sampling PCBs in Antarctic biota. These determinations were complemented with stable isotope and porphyrins assessments, and together this methodology determined the role of diet and metabolic disruption in penguins. Up to 60% of the collected faecal samples evidenced low molecular weight PCBs, of which, the more volatile compounds were predominant, in agreement with previous results.

Rotonlike Fulde-Ferrell collective excitations of an imbalanced Fermi gas in a two-dimensional optical lattice.

We address the question of whether superfluidity can survive in the case of fermion pairing between different species with mismatched Fermi surfaces using as an example a population-imbalanced mixture of 6Li atomic Fermi gas loaded in a two-dimensional optical lattice at nonzero temperatures. The collective mode is calculated from the Bethe-Salpeter equations in the general random phase approximation assuming a Fulde-Ferrell order parameter. The numerical solution shows that, in addition to low-energy (Goldstone) mode, two rotonlike minima exist, and therefore, the superfluidity can survive in this imbalanced system.

Influence of CD4+ T cell counts on viral evolution in HIV-infected individuals undergoing suppressive HAART.

We analyzed the viral C2-V4 envelope diversity, glycosylation patterns, and dS/dN ratios of plasma HIV-1 in an attempt to better understand the complex interaction between viral quasispecies and the host-selective pressures pre- and post-HAART. Phylogenetic analysis of the envelope gene of five patients revealed monophyletic clustering in patients with higher CD4+ T cell counts and sequence intermingling in those with lower CD4+ T cells in relation to the stage of HAART. Our analyses also showed clear shifts in N-linked glycosylation patterns in patients with higher CD4+ T cells, suggesting possible distinct immunological pressures pre- and post-HAART.