Bio-based nanoparticles for broadband UV protection with photo-stabilized UV-filters

Sunscreen formulations rely on a multitude of compounds to provide effective and safe protection against UV radiation. UV-filters have been strongly linked to the generation of carcinogenic reactive oxygen species upon irradiation by sunlight. Herein, we demonstrate a significant reduction in reactive oxygen species upon irradiation by sunlight by co-localisation of an antioxidant photo-stabiliser with multiple UV-filters into bio-based nanoparticles designed from ethyl cellulose. These nanoparticles display broadband UV-protection and can form transparent and flexible films. Please click Additional Files below to see the full abstract

A wind tunnel investigation into the effects of roof curvature on the aerodynamic drag experienced by a light goods vehicle

Roof curvature is used to increase ground vehicle camber and enhance rear-body boat-tailing to reduce aerodynamic drag. Little aerodynamic data is published for light goods vehicles (LGVs) which account for a significant proportion of annual UK licensed vehicle miles. This paper details scale wind tunnel measurements at Re = 1.6 × 106 of a generic LGV utilising interchangeable roof panels to investigate the effects of curved roof profile on aerodynamic drag at simulated crosswinds between -6° and 16°. Optimum magnitudes of roof profile depth and axial location are suggested and the limited dataset indicates that increasing roof curvature is effective in reducing drag over a large yaw range, compared to a flat roof profile. This is primarily due to increased base pressure, possibly from enhanced mixing of longitudinal vortices shed from the rear-body upper side edges and increased turbulent mixing in the near-wake due to the increased effective boat-tail angle

Enhanced Stiffness Of Bio–Based Composite Gels Comprising Cellulose Microfibrils And Plant–Derived Biopolymers

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THYMECTOMY EFFECT ON THE ANTISTREPTOLYSIN TITER IN EXPERIMENTAL MYOCARDITIS AND ARTHRITIS

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A STUDY OF SOME HISTOMORPHOLOGICAL CHANGES IN THE LYMPHORETICULAR APPARATUS OF ADULT RATS FOLLOWING THYMECTOMY

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EFFECT OF PROTEIN HYDROLYSATE, ALVESIN AND PHYSIOLOGICAL SALINE ON GLYCEMIA IN EXPERIMENTAL DIABETES CAUSED BY STREPTOSOTOCIN

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INVESTIGATING THE PROTEIN CONSTITUENTS OF SERUM GLYCOPROTEINS IN THYMECTOMIZED RATS WITH EXPERIMENTAL MYOCARDITIS

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CHANGES OF THE WHITE BLOOD PICTURE IN ANIMALS WITH SUBCHRONICAL MERCURY INTOXICATION AND PROTEIN HYDROLYSATE TREATMENT

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CONSIDERATION ON SOME HISTOMORPHOLOGICAL CHANGES IN EXPERIMENTAL ARTHRITIS IN RATS

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Magnetic Fields In Astrophysical Objects

Magnetic fields are known to reside in many astrophysical objects and are now believed to be crucially important for the creation of phenomena on a wide variety of scales. However, the role of the magnetic field in the bodies that we observe has not always been clear. In certain situations, the importance of a magnetic field has been over looked on the grounds that the large-scale magnetic field was believed to be too weak to play and important role in the dynamics. In this article I discuss some of the recent developments concerning magnetic fields in stars, planets and accretion discs. I choose to emphasise some of the situations where it has been suggested that weak magnetic fields may play a more significant role than previously thought. At the end of the article I list some of the questions to be answered in the future.Comment: 11 pages, 5 figures, to appear in Phil. Trans.