Detection of Pesticides in Food by CDs Blue Luminescent Material with the Help of Fluorescence Quenching Study

Environmental contamination has modified the approach to life of the folks in many ways all round the world. Food science suggests that the science of food which has food elements, their behaviour underneath completely different environmental conditions, method of harvest, milling, exposure to heat, cold, acid, alkalis etc. Today, the sphere of food science has progressed from basic physical, chemical and biological reactions that turn up throughout process to the fields of biotechnology, food engineering, packaging and its result on the patron. Luminescence and visual radiation phenomena have really fascinating ideas in technology. Light-weight materials have really various and distinctive properties, that are a magnet for various scientists to do and do the analysis throughout this field to implement in numerous sectors. Once the invention year in analysis of carbon dots in 2004, the study of carbon dots unreal, together with whole completely different fluorescent properties of carbon dots. It’s varied and valuable properties like water solubility, stable fluorescent property, exceptional photostability, high sensitivity with low toxicity, which can be apply in varied disciplines of research areas. This text explains the transient introduction of varied toxic materials and their effects. It explains the transient introduction and history of food science together with nutrition and digestions of food. It conjointly describes the various properties of food. The article is additionally mentioning the detection of various hazardous/poisonous materials by CDs with inherent literature survey. This text represents the transient introduction of pesticides and basic info of visible light extinction study. Through that, the venturesome material will be simply detected in varied food beverages

ULDM self-interactions, tidal effects and tunnelling out of satellite galaxies

It is well-known that Dark Matter (DM) inside a satellite galaxy orbiting a host halo experiences a tidal potential. For Ultra-Light Dark Matter (ULDM), due to its wave-like nature, one expects it to tunnel out of the satellite - if this happens sufficiently quickly, then the satellite will not survive over cosmological timescales, severely constraining the dark matter model. In this paper, we study the effects of the inevitable quartic self-interaction of scalar ULDM on the lifetimes of satellite galaxies by looking for quasi-stationary solutions with outgoing wave boundary conditions. For a satellite with some known core mass and orbital period, we find that, attractive (repulsive) self-interactions decrease (increase) the rate of tunnelling of DM out of it. In particular, for satellite galaxies with core mass $\sim \mathcal{O}(10^7-10^8)\ M_\odot$ and orbital period $\sim \mathcal{O}(1)\ \text{Gyr}$, one can impose constraints on the strength of self-interactions as small as $\lambda\sim \mathcal{O}(10^{-92})$. For instance, for ULDM mass $m = 10^{-22}\ \text{eV}$, the existence of the Fornax dwarf galaxy necessitates attractive self-interactions with $\lambda \lesssim -2.12 \times 10^{-91}$.Comment: 27 pages, 13 figure

Self-interactions of ULDM to the rescue?

One of the most important questions in cosmology is concerning the fundamental nature of dark matter (DM). DM could consist of spinless particles of very small mass i.e. $m \sim 10^{-22}\ \text{eV}$. This kind of ultralight dark matter (ULDM) would form cored density profiles (called "solitons") at the centre of galaxies. In this context, recently it has been argued that (a) there exists a power law relation between the mass of the soliton and mass of the surrounding halo called the Soliton-Halo (SH) relation, and, (b) the requirement of satisfying observed galactic rotation curves as well as SH relations is so stringent that ULDM is disfavoured from comprising $100\%$ of the total cosmological dark matter. In this work, we revisit these constraints for ULDM particles with non-negligible quartic self-interactions. Using a recently obtained soliton-halo relation which takes into account the effect of self-interactions, we present evidence which suggests that, for $m = 10^{-22}\ \text{eV}$, the requirement of satisfying both galactic rotation curves as well as SH relations can be fulfilled with repulsive self-coupling$\lambda \sim \mathcal{O}(10^{-90})$.Comment: 26 pages, 8 figure

To detect pesticide in Food beverages by Partial Structural Examination of CDs with the help of Fluorescence quenching study

In recent world, there are lots of crimes happen by adding some hazardous or poisonous materials in the food and food beverages. So it is very hard and cost effective to detect those materials. By one step synthesising carbon dots, the hydrothermal method is very accurate and precise. Carbon dots were synthesised by using hydrothermal methods with different precursors (ethanolamine, urea, ammonium thiocynate) while synthesising. Fluorescence quenching study has been done by using spectrofluorophotometer by adding some amount of food beverage in carbon dots solution. The structural property of CDs and the fluorescence quenching study have been examined by UV-vis spectrometer, atomic force microscopy, spectrofluorophotometer and FT-IR. The comparisons of precursors conclude that ethanolamine is the accurate and precise precursor to synthesise carbon dots with limited crystalline size (30nm-40nm). It shows better and less time consuming detection of the pesticide in appy fizz drink. By using ethanolamine batch, the fluorescence graph gradually decreased by adding 20ppm carbon dot solution after each reading.    &nbsp

Laurence-Moon-Bardet-Biedl Syndrome: A Rare Case Report

Introduction: Laurence-Moon-Bardet-Biedl syndrome (LMBBS) is a rare autosomal-recessive disorder, which is characterized principally by cardinal symptoms of marked central obesity, retinal dystrophy, polydactyly, mental retardation, hypogonadism and renal dysfunction. Case presentation: We report a case of a 20-year-old male who presented to us with history of fever, vomiting and dizziness. He was incidentally diagnosed as a case of LMBBS as the patient was having polydactyly, retinitis pigmentosa, central obesity, hypogonadism and low IQ. Conclusion: Laurence-Moon-Bardet-Biedl syndrome is a very rare syndrome with very low incidence; hence, we are reporting this case. In addition, we advice more diligent approach from various specialties, so that this syndrome can be picked up at an early age

Mitigation of acrylamide by l-asparaginase from Bacillus subtilis KDPS1 and analysis of degradation products by HPLC and HPTLC

The use of bacterial l-asparaginase (LA) is one of the alternative approaches for acrylamide reduction in food stuffs as it catalyzes the conversion of l-asparagine to l-aspartic acid and ammonia. In present investigation, purification of extracellular LA from isolate of Bacillus subtilis sp. strain KDPS-1 was carried out by solid state fermentation process. The effects of solid substrates, initial moisture content, moistening agents, temperature, and incubation time on LA production was studied, and the highest asparaginase activity (47 IU/ml) was achieved in the medium having orange peel as substrate. The enzyme was purified to homogeneity by diethylaminoethyl (DEAE) cellulose ion exchange chromatography; with 84.89 % yield and 12.11 fold purity. LA showed stimulant activity against β-mercaptoethanol and was greatly inhibited by Zn(2+) and Hg(2+) metal ions. Reduction of acrylamide in fried potatoes was detected by high performance liquid chromatography, which showed clear degradation of acrylamide by height and area (%) in the chromatograms of standard sample to that of the test sample. Hydrolysates analysis by high performance thin layer chromatography confirmed the test sample to be LA

Scrub Typhus Presenting as Subdural Hemorrhage with Normal Platelet Counts: A Rare Case Presentation

Scrub typhus is a common zoonotic disease with high case fatality rate. The clinical presentation of this disease may vary from acute febrile illness, thrombocytopenia, gastrointestinal manifestations, coagulopathy to neurological manifestations. The common neurological manifestations are meningitis and meningoencephalitis, whereas subdural hemorrhage, cerebrovascular accident, i.e., intracerebral hemorrhage, infarct, subarachnoid hemorrhage, etc. are among rare neurological presentations. Scrub typhus-induced neurological disease should be investigated to provide a timely and appropriate diagnosis and to reduce the mortality in complicated scrub typhus infection. Here we report a case of scrub typhus complicated with subdural hemorrhage admitted in our hospital

Rasmussen’s Encephalitis

Introduction: Rasmussen’s encephalitis (RE) is an inflammatory encephalopathy characterized by progressive refractory focal seizures, cognitive deterioration and focal neurological deficit that occur with gradual atrophy of one brain hemisphere. Case presentation: We report a case of an 18-year-old male with a history of abnormal body movements involving the right half of the body without loss of consciousness for the last 15 years. Noncontrast computed tomography (NCCT) head and magnetic resonance imaging (MRI) revealed hemiatrophy of the left cerebral hemisphere. Conclusion: RE is a rare disease; hence, diagnosing and managing such patients may be challenging. Our aim is to draw attention of the treating physicians towards this disease with the help of this case report

Revolutionizing Agriculture With Nanotechnology: Rice-Based Silica Nanoparticles For The Remediation And Quantification Of Toxic Heavy Metals In Potatoes

Today, metal pollution in agricultural soils poses a growing concern due to its potential health risks through the consumption of contaminated plants like potatoes. Heavy metal concentrations in the environment can exceed safe levels due to various human activities, including industrialization, mining, and agricultural practices. Consequently, potatoes and other vegetables may contain toxic heavy metals like Co, Ni, Pb, Cd, and Cr. Effective removal techniques are needed to mitigate these risks to food safety and human health. In this study, a simple and inexpensive green synthesis method is described to extract mesoporous silica nanoparticles taken from Navsari region “GNR-3 (Gujarat Navsari Rice – 3)” rice using the bottom-up approach for removal of toxic heavy metals contamination present in North Gujarat region Banaskantha district’s special variety potatoes named “KUFRI BADASHAH”. Rice husk (RH) calcinated to obtain rice husk ash (RHA) with high silica purity (>98% wt), as determined by the EDX analysis. Calcination at 650°C for four hours in a box furnace yielded RHA that was devoid of metal impurities and organic matter. The present study defines successfully minimization of toxic heavy metal contamination present in potatoes by employing silica nanoparticles (SNPs) as a biomass adsorbent and also includes all basic characterization of SNPs. The X-ray diffraction pattern showed a broad peak at 2θ≈22.1°C and was free from any other sharp peaks, indicating the amorphous property of the GNR-3 variety rice SNPs. Scanning electron micrographs (SEM) showed clusters of spherically shaped uniform aggregates of SNPs while transmission electron microscopy analysis indicated an average particle size of < 50 nm. Peaks in the Fourier transform infrared spectra were found at 1083.29 cm⁻1 and 795.48 cm⁻1, corresponding to O-Si-O symmetric stretching vibration and O-Si-O asymmetric stretching, respectively. The Brunauer-Emmet-Teller, obtained value of 11.1984 m²/g reflects the extent of surface available for adsorption. Concurrently, the pore size, a crucial factor influencing the accessibility of adsorption sites, was measured at 196.202 Å. The specific surface area of 11.1984 m²/g suggests a considerable active surface for potential interactions, respectively. In conclusion, Agriculture waste-derived SNPs (Silver Nanoparticles) offer a compelling solution for the removal of toxic heavy metals from potatoes. This technique is characterized by its simplicity, as it leverages readily available agricultural waste materials, requiring minimal processing