Results 261 to 270 of about 2,996,745 (335)

Innovative smart and biodegradable packaging for margarine based on a nano composite polylactic acid/lycopene film

Food Additives and Contaminants Part A-chemistry Analysis Control Exposure & Risk Assessment, 2021
In this study, polylactic acid (PLA)/titanium dioxide/lycopene (PLA/TiO2/Lyc) nano-composite film was prepared. The morphology and mechanical properties of the film were studied by SEM and texture analyser.
S. Pirsa, Sima Asadi
semanticscholar   +1 more source

Development of pH indicator and antimicrobial cellulose nanofibre packaging film based on purple sweet potato anthocyanin and oregano essential oil.

International Journal of Biological Macromolecules, 2020
A pH indicator and antimicrobial cellulose nanofibre packaging film was developed based on cellulose nanofibres as film matrix, anthocyanins from purple sweet potato as a natural dye and oregano essential oil as an antimicrobial agent.
Shunli Chen, Min Wu, P. Lu, Lin Gao, Shunpu Yan, Shuangfei Wang   +5 more
semanticscholar   +1 more source

Development of active/intelligent food packaging film containing Amaranthus leaf extract for shelf life extension of chicken/fish during chilled storage

, 2020
Composite active/intelligent food packaging film was developed with polyvinyl alcohol (PVA) and gelatin incorporated with Amaranthus leaf extract (ALE) to monitor freshness of fish and chicken meat.
Sweetie R. Kanatt
semanticscholar   +1 more source

Vertically stacked monolithic perovskite colour photodetectors

Nature
Modern colour image sensors face challenges in further improving sensitivity and image quality because of inherent limitations in light utilization efficiency1. A major factor contributing to these limitations is the use of passive optical filters, which
Sergey Tsarev, Daria Proniakova, Xuqi Liu, Erfu Wu, Gebhard J. Matt, Kostiantyn Sakhatskyi, Lorenzo J A Ferraresi, R. Kothandaraman, Fan Fu, Ivan Shorubalko, S. Yakunin, M. Kovalenko   +11 more
semanticscholar   +1 more source

Thin film polarization colour-selective beamsplitter

Thin Solid Films, 1995
Abstract A thin film polarization-selective beamsplitter system used for a liquid-crystal light-valve image projector has been presented. The system involves three beamsplitters which serve as either a polarizer/analyzer or a separator/synthesizer for the three primary colours. These filters have been realized with multilayer optical coatings.
P.F. Gu, X. Liu, H.F. Li, Z.D. Zheng, J.F. Tang   +4 more
openaire   +1 more source

Colour variation in drying paint films

Progress in Organic Coatings, 2019
Abstract Color variations due to changes in paint film thickness and pigment content were studied experimentally. Three paints with differing concentration (0.5%, 2% and 4% by weight) of spherical blue pigments were applied with varying film thickness (310, 490, 730 μm) on stainless-steel substrates and dried in an oven while the paint surfaces were ...
Marina Curak, Nazli Saranjam, Sanjeev Chandra   +2 more
openaire   +1 more source

Circularly polarized luminescence from structurally coloured polymer films

Chemical Communications, 2021
A strategy for the preparation of structurally coloured polymer films with strong circularly polarized luminescence and enhanced fluorescence efficiency based on cholesteric liquid crystals is presented for the first time.
Baining Ni, Yi Li, Wei Liu, Baozong Li, Hongkun Li, Yonggang Yang   +5 more
openaire   +2 more sources

Modulating transparency and colour of cellulose nanocrystal composite films by varying polymer molecular weight.

Journal of Colloid and Interface Science, 2020
HYPOTHESIS Cellulose nanocrystals (CNC) can produce photonic composite films that selectively reflect light based on their periodic cholesteric structure. The hypothesis of this research is that by incorporating water-soluble polymer, photonic properties
Mao-Peng Lin, V. Raghuwanshi, C. Browne, G. P. Simon, G. Garnier   +4 more
semanticscholar   +1 more source

Development and evaluation of a novel antioxidant and pH indicator film based on chitosan and food waste sources of antioxidants

Food Hydrocolloids, 2018
Chitosan based smart films are developed using blueberry and blackberry pomace extracts as active agents at different concentrations (1, 2 and 4% w/v). The whole concept of film production can be considered as eco-friendly contributing to the reduction ...
M. Kurek, I. E. Garofulić, M. Bakić, M. Ščetar, V. Uzelac, K. Galić   +5 more
semanticscholar   +1 more source

Colour centre studies in MoO3 films

Journal of Non-Crystalline Solids, 1978
Abstract The growth of defects in vacuum-evaporated MoO3 films has been studied by optical absorption in the present work. The as-grown films were subjected to different kinds of treatment such as thermal annealing, UV and X-ray irradiation, and their optical absorption spectra were recorded between 300 and 1500 nm at room temperature as well as at ...
M.S. Jagadeesh, V. Damodara Das
openaire   +1 more source