Electrochemically grafted gallic acid-chitosan: a metal-free redox platform for regiospecific oligopeptide-viral spike protein interaction.

Electrochemical grafting of gallic acid with chitosan (EgGC) voltammetrically deposited on a multitude of substrates exhibiting reversible oxidoreduction suitable for sensor construction is reported. A bioreceptor customized from the fragment antigen binding region of SARS-CoV-2 neutralizing antibodies immobilized on an EgGC matrix supported the selective/specific electrochemical signal transduction with respect to different viral loads (femtogram level) of SARS-CoV-2.

A novel interaction between RNA mA methyltransferase METTL3 and RREB1.

Regulation of gene expression is achieved through the modulation of regulatory inputs both pre- and post-transcriptionally. Methyltransferase-like 3 (METTL3) is a key player in pre-mRNA processing, actively catalyzing N6-methyladenosine (m6A). Among the most enriched mRNA targets of METTL3 is the Ras Responsive Element Binding Protein 1 (RREB1), a transcription factor which functions to govern cell fate, proliferation and DNA repair.

Highly Efficient Room Temperature NO Sensor Using Two-Phase TiO Heterogeneous Nanoparticles.

In this study, we successfully synthesized two-phase titanium oxide (TiO) heterogeneous nanoparticles (NPs) using an advanced sol-gel method, a significant stride in developing efficient, room temperature (RT) NO gas sensors. The prepared two-phase TiO heterogeneous NPs exhibited exceptional sensitivity to low concentrations of NO gas at RT. The heightened gas response was attributed to a significant presence of oxygen vacancies, creating intermediate states within the two-phase heterostructures and thus narrowing the band gap.

Profile of COVID-19 breakthrough cases and its comparison with unvaccinated COVID-19 cases among healthcare workers in a tertiary care centre in North Kerala.

Background: Healthcare workers (HCWs) were the most vulnerable group during COVID-19 pandemic and had faced many challenges including high rate of breakthrough infections.

Aims: To study the incidence of reported breakthrough infections among HCWs in Government Medical College, Kozhikode and to compare profile of COVID-19 infection between fully vaccinated and unvaccinated COVID-19 positive HCWs.

Settings And Design: The research was conducted as a prospective study for a duration of 78 weeks from 1 of March 2020 through 31 of August 2021 in Government Medical College, Kozhikode.

Investigation of TiO nanoparticle interactions in the fibroblast NIH-3T3 cells via liquid-mode atomic force microscope.

Long before we recognized how significant they were, nanoparticles were already all around in the environment. Since then, an extensive number of synthetic nanoparticles have been engineered to improve our quality of life through rigorous scientific research on their uses in practically every industry, including semiconductor devices, food, medicine, and agriculture. The extensive usage of nanoparticles in commodities that come into proximity with human skin and internal organs through medicine has raised significant concerns over the years.

Understanding the Combined Effects of High Glucose Induced Hyper-Osmotic Stress and Oxygen Tension in the Progression of Tumourigenesis: From Mechanism to Anti-Cancer Therapeutics.

High glucose (HG), a hallmark of the tumour microenvironment, is also a biomechanical stressor, as it exerts hyper-osmotic stress (HG-HO), but not much is known regarding how tumour cells mechanoadapt to HG-HO. Therefore, this study aimed to delineate the novel molecular mechanisms by which tumour cells mechanoadapt to HG/HG-HO and whether phytochemical-based interference in these mechanisms can generate tumour-cell-selective vulnerability to cell death. Mannitol and L-glucose were used as hyper-osmotic equivalents of high glucose.

Non-destructive characterization of pulse flours-A review.

The consumption of plant-based proteins sourced from pulses is sustainable from the perspective of agriculture, environment, food security, and nutrition. Increased incorporation of high-quality pulse ingredients into foods such as pasta and baked goods is poised to produce refined food products to satisfy consumer demand. However, a better understanding of pulse milling processes is required to optimize the blending of pulse flours with wheat flour and other traditional ingredients.

Ag-Decorated Vertically Aligned ZnO Nanorods for Non-Enzymatic Glucose Sensor Applications.

The non-enzymatic glucose sensing response of pure and Ag-decorated vertically aligned ZnO nanorods grown on Si substrates was investigated. The simple low-temperature hydrothermal method was employed to synthesize the ZnO NRs on the Si substrates, and then Ag decoration was achieved by sputtering. The crystal structure and surface morphologies were characterized by X-ray diffraction, field-emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM).

Disposable-micropipette tip supported electrified liquid-organogel interface as a platform for sensing acetylcholine.

Sensing acetylcholine has been predominantly based on enzymatic strategies using acetylcholine esterase and choline oxidase because of its electrochemical inertness. Electrified liquid-liquid interfaces are not limited to oxidation/reduction processes, and can be utilized to detect non-redox molecules which cannot be detected using conventional solid electrodes. In this study, a disposable micropipette tip based liquid-organogel interface, in the presence/absence of calixarene has been developed as a platform for sensing acetylcholine.

Adiponectin receptors sustain haematopoietic stem cells throughout adulthood by protecting them from inflammation.

How are haematopoietic stem cells (HSCs) protected from inflammation, which increases with age and can deplete HSCs? Adiponectin, an anti-inflammatory factor that is not required for HSC function or haematopoiesis, promotes stem/progenitor cell proliferation after bacterial infection and myeloablation. Adiponectin binds two receptors, AdipoR1 and AdipoR2, which have ceramidase activity that increases upon adiponectin binding. Here we found that adiponectin receptors are non-cell-autonomously required in haematopoietic cells to promote HSC quiescence and self-renewal.

High-Quality Single-Crystalline -GaO Nanowires: Synthesis to Nonvolatile Memory Applications.

One of the promising nonvolatile memories of the next generation is resistive random-access memory (ReRAM). It has vast benefits in comparison to other emerging nonvolatile memories. Among different materials, dielectric films have been extensively studied by the scientific research community as a nonvolatile switching material over several decades and have reported many advantages and downsides.

Quantum chemical calculation, performance of selective antimicrobial activity using molecular docking analysis, RDG and experimental (FT-IR, FT-Raman) investigation of 4-[{2-[3-(4-chlorophenyl)-5-(4-propan-2-yl) phenyl)-4, 5-dihydro- 1H- pyrazol-1-yl]-4-oxo-1, 3- thiazol-5(4H)-ylidene} methyl] benzonitrile.

The research received a great deal of worldwide attention due to the nature of interpretation before the experimental process. Based on the systematic process the structure of thiazole -pyrazole compound 4-[{2-[3-(4-chlorophenyl)-5-(4-propan-2-yl) phenyl)-4, 5-dihydro- 1H- pyrazol-1-yl]-4-oxo-1, 3- thiazol-5(4H)-ylidene} methyl] benzonitrile [CPTBN] was investigated. In the first level, the spectral statistics on experimental FT-IR and FT- Raman was reported.

Effect of sleep habits on academic performance in schoolchildren age 6 to 12 years: a cross-sectional observation study.

Study Objectives: Sleep plays a vital role in the cognitive and neurodevelopmental outcome of children; therefore, adequate sleep is needed to improve academic performance. The primary objective of this study was determine the prevalence of sleep behaviors and their effect on academic performance in schoolchildren age 6-12 years and to translate the findings into greater opportunity for healthy development and academic success.

Methods: Our study included 791 healthy children between ages 6 and 12 years from schools that are parts of the Central Board of Secondary Education in the South Indian urban population.

Psychosocial counseling of patients planned for hematopoietic stem-cell transplantation for malignant conditions-practical challenges and solutions from India.

Hematopoietic stem-cell transplantation (HSCT) is a life-saving procedure often performed to cure relapsed and difficult-to-treat malignancies. Only a handful of centers in India were initially involved in the delivery of these services. However, in the last decade, more than 100 centers in the private and public domain have started offering transplant services in the country.

The mechanism underlying silicon oxide based resistive random-access memory (ReRAM).

In this work, we have inspected the theoretical resistive switching properties of two ReRAM models based on heterojunction structures of Cu/SiO nanoparticles (NPs)/Si and Si/SiO NPs/Si, in which dielectric layers of the silica nanoparticles present dislocations at bicrystal interfaces. To validate the theoretical model, a charge storage device with the structure Cu/SiO /Si was fabricated and its ReRAM properties were studied. Our examinations on the electrical, thermal and structural aspects of resistive switching uncovered the switching behavior relies upon the material properties and electrical characteristics of the switching layers, as well as the metal electrodes and the interfacial structure of grains within the dielectric materials.

Nipah Virus Infection in Kozhikode, Kerala, South India, in 2018: Epidemiology of an Outbreak of an Emerging Disease.

Background: An outbreak of the rare and highly pathogenic Nipah virus infection occurred in Kozhikode, Kerala, India, during May 2018.

Methodology: Outbreak control activities included laboratory case confirmation and isolation. Contact surveillance was initiated and close contacts were home quarantined for the maximum incubation period of the disease.

Restless legs syndrome - the under-recognised non-motor burden: a questionnaire-based cohort study.

: Non-motor symptoms (NMS) range from neuropsychiatric to pain and are an important but underexplored feature of restless legs syndrome (RLS). There are currently no tools available which enable the holistic assessment of NMS in RLS in clinical practice. The primary aim of this study was to systematically assess NMS prevalence and burden in patients with RLS using the NMS Questionnaire (NMSQuest) validated for Parkinson's disease.

Safety of Intravenous Iron - Cosmofer and Monofer Therapy in Peritoneal Dialysis and Non-Dialysis-Dependent Chronic Kidney Disease Patients.

Safety of parenteral iron therapy is critical and has been demonstrated in several studies, but concerns persist on safety. We performed a retrospective single-center study investigating the safety and efficacy of parenteral iron administration using 2 iron preparations-Monofer and Cosmofer (Pharmacosmos A/S, Holbaek, Denmark)-in patients with chronic kidney disease (CKD), on peritoneal dialysis (PD) and non-dialysis. A database of CKD patients receiving intravenous (IV) iron was analyzed.

Role change as breadwinner in cancer caregiving.

Introduction: : Indian families are known for adopting the role of caregiver naturally when someone in the family falls ill to cancer. Although there were strong family structure and system existed here, now the changing family pattern and structure are challenging the role of cancer caregiving as well.

Objective: : This study analyses the life situation of caregivers of cancer survivors during the course of treatment and attempts to explore the areas of interventions for caregivers themselves.

Diagnostic delay and associated factors among patients with pulmonary tuberculosis in Kerala.

Introduction: Delay in the diagnosis of tuberculosis (TB) can lead to an increased infectivity period, delayed treatment, and increased severity of the disease. The objective of this study was to estimate the diagnostic delay and factors associated with the delay in diagnosis among the newly diagnosed smear-positive pulmonary TB patients in Kerala, India.

Materials And Methods: A cross-sectional study was conducted among TB patients who were in the intensive phase of directly observed treatment short-course treatment in four randomly selected TB units in a district in Kerala during the years 2012-2013.

Drug-induced hypersensitivity syndrome with human herpesvirus-6 reactivation.

A 45-year-old man, on carbamazepine for the past 3 months, was referred as a case of atypical measles. On examination, he had high-grade fever, generalized itchy rash, cough, vomiting and jaundice. A provisional diagnosis of drug hypersensitivity syndrome to carbamazepine was made with a differential diagnosis of viral exanthema with systemic complications.

Course of poly(4-aminodiphenylamine)/Ag nanocomposite formation through UV-vis spectroscopy.

Kinetics of chemical oxidative polymerization of 4-aminodiphenylamine (4ADPA) was followed in aqueous 1 M p-toluene sulfonic acid (p-TSA) using silver nitrate (AgNO3) as an oxidant by UV-vis spectroscopy. The medium was found to be clear and homogeneous during the course of polymerization. The absorbances corresponding to the intermediate and the polymer were followed for different concentrations of 4ADPA and AgNO3 and at different reaction time.

"Nanocatalyst ∪ reagent-on-a-polymer film": a new polymer-supported system for (electro-)catalytic reactions.

Poly(3,4-ethylenedioxythiophene) has been used to immobilize both the metal particle catalyst and the reagent, (cyano-)borohydride, by simple doping and chemical reduction. These films have shown catalytic activity in the hydrogenation of nitrophenol and electro-oxidation of methanol, formic acid and borohydride.

The ASPIRE approach for TIA risk stratification.

Background: The risk of stroke after transient ischemic attack (TIA) is elevated in the days to weeks after TIA. A variety of prediction rules to predict stroke risk have been suggested. In Alberta a triage algorithm to facilitate urgent access based on risk level was agreed upon for the province.