Narrow Results

Cu/CuO nanoparticles (NPs) have received extensive attention owing to their tremendous antifungal and antibacterial properties. Cu/CuO NPs are used in diverse fields, viz. electronics, catalysis, photonics, biosensing, optoelectronics and many more. Herein, we described the green synthesis of Cu/CuO NPs using Cuscuta reflexa (Amarvel) plant material at room temperature. The prepared NPs were characterized by routine technique, viz. XRD, UV-Vis, SEM and TEM. The typical size found was merely 7–10nm using the TEM technique. The as-prepared solution of NPs was tested against the Diptera larval nymph of mosquitoes. These mosquitoes breed in monsoon (rainy season) in stagnant water. It is observed that NPs were very effective against these larvae, which were killed overnight when just four drops of the as-prepared NPs solution were directly added to a 10ml water sample containing mosquito larvae. Overall, the biosynthesized Cu/CuO NPs showed good insecticidal activity against the parasitic disease malaria-causing Anopheles mosquitoes in the larval stage itself. We believe the outcome will lead to a new era in the preparation of innovative organic insecticides.

We formulate a continuous-time 3D model system for the interactive mosquito populations with two different transgenes. We assume that the transgenes are dominant over the wild gene and that one of the transgenes is dominant over the other transgene. Using transformations, we translate the model system to its topologically equivalent 2D system. Based on the investigations of the reduced two-dimensional system, we obtain conditions for the existence and stability of boundary and positive equilibria. We provide numerical examples to demonstrate the rich and complex dynamical features of the model system.

AUSTRALIA – Researchers Find Bacterium to Trip Malarial Mosquitoes.

AUSTRALIA – One Dose of H1N1 Vaccine May Provide Sufficient Protection for Infants and Children.

AUSTRALIA – Cosmetic Therapy Uses Patient's Own Plasma to Fix Wrinkles.

AUSTRALIA – Asthma Summer Warning.

AUSTRALIA – Link Between Sun Exposure and Food Allergies in Kids Revealed.

AUSTRALIA – Colon Simulator Reduces Cancer.

AUSTRALIA – Farmers Turn Organic for Personal Health.

AUSTRALIA – Rise in Dengue Cases Causes New Outbreak Fears.

CHINA – Western Corporations Move Key Offices to China.

CHINA – China Treating Severe Swine Flu with Blood Plasma.

CHINA – Traditional Medicine Beats H1N1 Virus.

CHINA – Sars Victims Suffer After-Effects.

CHINA – Higher Lung Cancer Risk in Eastern China.

CHINA – Experts Warn of Cancer Linked to Certain Herbs.

INDIA – CSIR Completes First Ever Human Genome Sequencing in India.

INDIA – India among Top 5 Government Funders of Neglected Diseases.

INDIA – Doctors Use Stem Cells to Regrow Teeth in Children.

INDIA – Delhi to Have First Govt-owned Liver Institute.

JAPAN – Israel, Japan Unite For First Time to Study Brain, Stem Cells.

PHILIPPINES – Stem Cell Therapy as Rejuvenation and Other Disease Treatment.

SINGAPORE – Scientists Discover Natural Compound in Palm Oil Kills Breast Cancer Cells.

SINGAPORE – More than 200 Scientists Attend A*STAR Biomedical Sciences Symposium.

SINGAPORE – Global Phase III Clinical Trial to Treat Head and Neck Cancer Begins.

EUROPE – Stem Cell Treatment Helps Regain Eyesight.

Next-Generation Large Molecule Affinity Purification Solution Improves Biotherapeutic, Disease Biomarker and Sports Anti-Doping Bioanalysis.

MR Solutions Brings New 3D, 1000X Magnification Imaging Modality to Preclinical Research.

Using Saltidin to Guard Against the Zika Virus.

Nagasaki University Hospital Boosts Patient Care and Safety with Zebra Technologies' Enterprise-Class TC55 Touch Computer.

CSIRO Uses Dell Supercomputer to Help Combat Post-Childbirth Complications in Women.

Philips Launches “World's Sleepiest Website” to Help Restless Sleepers Maximize Their Slumber.

Telstar Aeolus Proven to Consume Up to 35% Less Power than the Current Market Average.

Asia-Pacific’s Invisible Malaria Problem.

Philips Launches Health Continuum Space to Enable Co-Creation of Future Healthcare Innovations.

Mab-Venture Biopharma & Thermo Fisher Establish Asia Pacific’s First “SmartFactory” for Antibody Drugs.

Venus Medtech’s TAVR Device Is Approved By CFDA, Creating A New Era of Interventional Cardiology in China.

Key Diabetes Receptor Structure Determined by International Collaboration.

China Sets Up National Lab Developing Brain-Like AI Technology.

Chinese Scientists Realize On-site Drug Detection.

Scientists Map Single-Copy HIV-1 Provirus Loci in Human Chromosomes in Live Host Cells.

Gene Variant Explains Differences in Blood Fatty Acid Levels.

Scientists Illustrate How Host Cell Responds to Zika Virus Infection.

Hong Kong News – Uni-Bio Science Launches Best-in-Class Oral Anti-Diabetic Drug Mitiglinide Branded “博康泰^®”(Bokangtai).

Polymorphic inversions in mosquitoes are distributed nonrandomly among chromosomes and are associated with ecological, behavioral, and physiological adaptations related to pathogen transmission. Despite their significance, the patterns and mechanism of genome rearrangements are not well understood. Recent sequencing and physical mapping of the genomes for 16 Anopheles mosquito species provided an opportunity to study chromosome evolution at the highest resolution. New studies revealed that fixed rearrangement accumulated $\sim$3 times faster on the X chromosome than on autosomes. The highest densities of transposable elements (TEs) and satellites of different sizes have also been found on the X chromosome, suggesting a mechanism for the inversion generation. The high rate of X chromosome rearrangements is in sharp contrast with the paucity of polymorphic inversions on the X in the majority of anopheline species. This paper highlights the advances in understanding chromosome evolution in malaria vectors and discusses possible future directions in studying mechanisms and biological roles of genome rearrangements.

In this paper, we analyze a stage structured mathematical model for the transmission of malaria and its control by killing mosquitoes in larvae (immature) stage. Both the Mosquito and human populations are divided into susceptible and infective class. Susceptible class of mosquito population is further divided into mature and immature. The model is analyzed by using stability theory of nonlinear ordinary differential equations. Basic reproduction ratio is derived which is found to be the decreasing function of maturation delay and larvicidal activity. In addition, it is observed that biting rate of mosquito, transmission efficiency of parasitic infection from infective human to mosquito and critical value of maturation delay are the key parameters determining the stability switch in the system. Numerical simulation is also carried out to confirm the analytical results obtained in the paper.