Surface-Enhanced Raman Scattering Nanoendoscope for Quantification of a Protein Released under Physiological Stimulation in Brain Tissue.

A surface-enhanced Raman scattering (SERS) biosensor with minimal invasiveness and high spatial resolution has been developed as a nanoendoscope to detect changes in protein concentrations at specific sites in biological tissues. While generally applicable to various tissues or proteins, the SERS nanoendoscope is demonstrated for the quantitative detection of S100β, an astrocytic protein whose plasmatic levels are known to vary in several neuropathologies such as Alzheimer's disease, schizophrenia, Down syndrome, Parkinson's disease and epilepsy, but for which intratissular levels have not been locally monitored, demonstrating key attributes of the SERS nanoendoscope. The SERS nanoendoscope is fabricated with densely and well-dispersed deposited gold nanoparticles modified with anti-S100β primary antibody on pulled optical fibers with a tip diameter of 700 nm, conducive to noninvasive and regiospecific detection of the S100β protein in different regions of mouse brain slices under different physiological stimuli with micrometer resolution.

Work Participation of Hematological Cancer Survivors After Hematopoietic Cell Transplantation: A Scoping Review.

Purpose: Hematopoietic cell transplantation (HCT) is a common treatment for people diagnosed with hematological cancers. However, it can cause side effects that may affect work participation. This scoping review aims to provide an overview of the factors that influence the work participation of hematological cancer survivors who have undergone HCT.

Adsorption and Permeation Events in Molecular Diffusion.

How many times can a diffusing molecule permeate across a membrane or be adsorbed on a substrate? We employ an encounter-based approach to find the statistics of adsorption or permeation events for molecular diffusion in a general confining medium. Various features of these statistics are illustrated for two practically relevant cases: a flat boundary and a spherical confinement. Some applications of these fundamental results are discussed.

Surface-Enhanced Raman Scattering Nanosensing and Imaging in Neuroscience.

Monitoring neurochemicals and imaging the molecular content of brain tissues , , and is essential for enhancing our understanding of neurochemistry and the causes of brain disorders. This review explores the potential applications of surface-enhanced Raman scattering (SERS) nanosensors in neurosciences, where their adoption could lead to significant progress in the field. These applications encompass detecting neurotransmitters or brain disorders biomarkers in biofluids with SERS nanosensors, and imaging normal and pathological brain tissues with SERS labeling.

Integrated self-management support provided by primary care nurses to persons with chronic diseases and common mental disorders: a qualitative study.

Background: More and more people suffer from concomitant chronic physical diseases and common mental disorders, calling for integrated self-management support in primary care. However, self-management support of chronic physical diseases and common mental disorders is not clearly operationalized by guidelines and is still conducted in silos by primary care nurses, especially in favour of chronic diseases. This study aims to better understand primary care nurses' experience of integrated self-management support for people with physical chronic diseases and common mental disorders.

AI maturity in health care: An overview of 10 OECD countries.

Background: Artificial Intelligence (AI) and its applications in health care are on the agenda of policymakers around the world, but a major challenge remains, namely, to set policies that will ensure wide acceptance and capture the value of AI while mitigating associated risks.

Objective: This study aims to provide an overview of how OECD countries strategize about how to integrate AI into health care and to determine their actual level of AI maturity.

Methods: A scan of government-based AI strategies and initiatives adopted in 10 proactive OECD countries was conducted.

Modeling the impact of heat stress on the toxicokinetics of toluene and acetone.

Many workers can be exposed simultaneously to heat and volatile chemicals. In a controlled human exposure study, it was observed that an increase in ambient temperature was associated with increased blood concentrations for acetone and toluene. Based on the expected changes in physiological parameters that occur with an increase in ambient temperature, we aimed to develop a PBPK model for acetone and toluene that could account for the impact of temperature on the kinetics of these solvents.

Optoplasmonic Effects in Highly Curved Surfaces for Catalysis, Photothermal Heating, and SERS.

Surface curvature can be used to focus light and alter optical processes. Here, we show that curved surfaces (spheres, cylinders, and cones) with a radius of around 5 μm lead to maximal optoplasmonic properties including surface-enhanced Raman scattering (SERS), photocatalysis, and photothermal processes. Glass microspheres, microfibers, pulled fibers, and control flat substrates were functionalized with well-dispersed and dense arrays of 45 nm Au NP using polystyrene--poly-4-vinylpyridine (PS--P4VP) and chemically modified with 4-mercaptobenzoic acid (4-MBA, SERS reporter), 4-nitrobenzenethiol (4-NBT, reactive to plasmonic catalysis), or 4-fluorophenyl isocyanide (FPIC, photothermal reporter).

Revolutionizing nursing education through Ai integration: A reflection on the disruptive impact of ChatGPT.

Artificial intelligence (AI) is driving global change. An AI language model like ChatGPT could revolutionize the delivery of nursing education in the future. ChatGPT is an AI-enabled text generator that has garnered significant attention due to its ability to engage in conversations and answer questions.

Interrelated Roles of Multiple Key Structure-Directing Agents in Seed-Mediated Growth of Monodisperse and Multibranched Au Nanoparticles.

Detailed mechanistic investigations of the interrelated roles of multiple key structure-directing agents in the growth solution of Au nanoparticles (AuNPs) is required for the optimization of synthetic protocols. Here, we report a robust seed-mediated growth strategy for synthesizing multibranched NPs (MB-AuNPs) with monodispersed size distribution, and investigate the roles of Ag ions and 4-(2-hydroxyethyl)piperazine-1-ethanesulfonic acid (HEPES) based on an overgrowth synthesis approach. The intertwining roles of Ag , surface-capping stabilizers, and reducing agents were elucidated, and used to control the morphology of MB-AuNPs.

Label-Free SERS for Rapid Differentiation of SARS-CoV-2-Induced Serum Metabolic Profiles in Non-Hospitalized Adults.

COVID-19 represents a multi-system infectious disease with broad-spectrum manifestations, including changes in host metabolic processes connected to the disease pathogenesis. Understanding biochemical dysregulation patterns as a consequence of COVID-19 illness promises to be crucial for tracking disease course and clinical outcomes. Surface-enhanced Raman scattering (SERS) has attracted considerable interest in biomedical diagnostics for the sensitive detection of intrinsic profiles of unique fingerprints of serum biomolecules indicative of SARS-CoV-2 infection in a label-free format.

Nature and perceived benefits of patient-initiated consultations in community pharmacies: A population survey.

Background: The role of community pharmacists in enhancing patient care has received increased attention. However, there is a paucity of literature on the nature, frequency, and perceived impacts of patient-initiated consultations in community pharmacies.

Objectives: We aim to describe the profile of patients seeking advice from community pharmacists as well as the nature and impact of those consultations.

Integrated self-management support provided by primary care nurses to persons with chronic diseases and common mental disorders: a scoping review.

Aim: To map integrated and non-integrated self-management support interventions provided by primary care nurses to persons with chronic diseases and common mental disorders and describe their characteristics.

Design: A scoping review.

Data Sources: In April 2020, we conducted searches in several databases (Academic Research Complete, AMED, CINAHL, ERIC, MEDLINE, PsycINFO, Scopus, Emcare, HealthSTAR, Proquest Central) using self-management support, nurse, primary care and their related terms.

Highly emissive polymorphs of anhydrous cadmium tetracyanoplatinate and their solvated coordination networks.

Two anhydrous polymorphs of cadmium cyanoplatinate Cd[Pt(CN)] coordination polymers have been synthesized and thermally, spectroscopically, and structurally characterized. α-Cd[Pt(CN)] and β-Cd[Pt(CN)] are densely packed, highly emissive 3-D solids, with quantum yields of 0.85 ( = 520 nm) and 0.

Combining multilayered wrinkled polymer SERS substrates and spectral data processing for low concentration analyte detection.

A series of thermally shrinkable polymer surface-enhanced Raman scattering (SERS) substrates were prepared with bimetallic Au and Ag (oxidized or not) films and with Au nanoparticles (AuNPs) located at different places in the layered structure to evaluate the synergistic effect of different known SERS amplification methods to enhance the Raman signal for low concentration dopamine detection. A bimetallic Au and Ag layered structure improved the Raman signal by 5 and 2 times compared to the single-layered Au and Ag films. Oxidizing the Ag layer prior to deposition of Au further improved the signal by a factor of 2, while adding AuNP on wrinkled films increased another 10 times the intensity of the Raman signal.

Competencies for Physiotherapists Working to Facilitate Rehabilitation, Work Participation and Return to Work for Workers with Musculoskeletal Disorders: A Scoping Review.

Purpose The aim of this scoping review was to synthesize the literature addressing the competencies that physiotherapists in a clinical setting need to facilitate the rehabilitation, work participation, and return to work of workers with musculoskeletal disorders.Methods We conducted a scoping review in accordance with Arksey & O'Malley's five-step method. The following categories of keywords were used during searches in Embase, Medline and CINAHL in May 2020: (1) physiotherapy/physical therapy; (2) return to work, work participation or occupational health; and (3) education/professional competencies/guidelines.

Bilateral motor coordination during upper limb symmetric pushing movements at two levels of force resistance in healthy and post-stroke individuals.

Background: Impairments of the upper limb (UL) are common after a stroke and may affect bilateral coordination. A better understanding of UL bilateral coordination is required for designing innovative rehabilitation strategies.

Objective: To assess bilateral coordination after stroke using time-distance, velocity and force parameters during an UL bilateral task performed by simultaneously pushing handles on a bilateral exerciser at two levels of force.

Biological monitoring of exposure to rare earth elements and selected metals in the Inuit population of Nunavik, Canada.

In Nunavik (Northern Quebec, Canada), some mining projects are envisioned, that could increase the contamination of the environment by various chemicals, including rare earth elements (REEs), and implicitly Inuit population exposure. The objective of this study was to determine the baseline biological exposure of the population to these elements, before the potential mining development occurs. In the framework of the 2017 Qanuilirpitaa? Inuit health survey, urine samples were obtained from a representative sample of the adult Nunavik population, which were used to constitute 30 pooled samples according to age, sex and Nunavik subregions.

Development of an optimal grocery list based on actual intake from a cross-sectional study of First Nations adults in Ontario, Canada.

A multi-stage sampling strategy selected 1387 on-reserve First Nations adults in Ontario. Foods from a 24-hour dietary recall were assigned to the 100 most common food groups for men and women. Nutrients from market foods (MF) and traditional foods (TF) harvested from the wild as well as MF costs were assigned based on the proportions of total grams consumed.