Results 81 to 90 of about 308,277 (312)

Respostas de aclimatação de Acrostichum danaeifolium Langsd. & Fisch. (Polypodiopsida, Pteridaceae) à radiação ultravioleta B [PDF]

open access: yes, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Biologia de Fungos, Algas e Plantas, Florianópolis, 2015.A destruição da camada de ozônio na estratosfera principalmente pela ...
Fonini, Adriano Moratelli
core  

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Effects of ultraviolet-B radiation on plant growth, symbiotic function and concentration of metabolites in legumes and an assessment of F1 generation for carryover effects

open access: yes, 2003
Bibliography: leaves 126-152.Reduction in ozone layer thickness in the stratosphere and the resultant increase in ground level of biologically active ultraviolet-B (UV-B) radiation prompted research into the effect of UV-B on growth and metabolism of ...
Chimphango, Samson
core  

Optimizing solar UV-radiation exposures for vitamin D3: comparing global and diffuse spectral UV radiation

open access: yes, 2008
Currently, there is a major gap in the knowledge that is needed in order to optimise the beneficial effects related to ultraviolet (UV) radiation for vitamin D3 synthesis (UVD3) compared to reducing the biologically damaging overexposure to UV radiation.
Parisi, Alfio V., Turnbull, David J.
core   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Characterisation of the p53-Mediated Cellular Responses Evoked in Primary Mouse Cells Following Exposure to Ultraviolet Radiation [PDF]

open access: yes, 2013
Exposure to ultraviolet (UV) light can cause significant damage to mammalian cells and, although the spectrum of damage produced varies with the wavelength of UV, all parts of the UV spectrum are recognised as being detrimental to human health ...
McFeat, Gillian   +5 more
core   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

Intrinsic Photoactive Star ZnPc–Poly(glutamate) Nanoplatforms for Multimodal Glioblastoma Therapy and Brain‐Targeted Delivery

open access: yesAdvanced Functional Materials, EarlyView.
An intrinsic photoactive star‐shaped zinc phtalocyanine‐poly(L‐glutamic acid) (ZnPc‐PGA) nanoplatform for multimodal glioblastoma (GBM) therapy and brain‐targeted elivery. A ZnPc‐PGA‐based multifunctional theranostic nanocarrier platform enables image‐guided, multimodal GBM therapy. ZnPc‐PGA nanocarriers support the integration of fluorescence imaging,
Amina Benaicha‐Fernández   +14 more
wiley   +1 more source

Ultraviolet B induced bioactive changes of enzymatic and non-enzymatic antioxidants and lipids in Trigonella foenum-graecum L. (Fenugreek)

open access: yesThe EuroBiotech Journal, 2018
Ultraviolet radiation (UV) altered plant metabolism. Hence Trigonella foenum-graecum L. (Fenugreek) exposed to UV-B radiation for studying the bioactive changes that may be useful in captive farming.
Sebastian Abin   +3 more
doaj   +1 more source

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