Results 41 to 50 of about 474 (165)

Bio-based additives for thermoplastics [PDF]

, 2020
Presently, there are significant research efforts being undertaken to produce bio-based chemicals in a cost-effective way. The polymer chemists and engineers are no exception to this.
de Paoli, M.A., Waldman, W.R.
core   +1 more source

New model of biological membrane (shed snakeskin) for studies of antioxidant activity in photoprotective formulation/ Novo modelo de membrana biológica (ecdise de pele de cobra) para estudos de atividade antioxidante em formulação fotoprotetora [PDF]

, 2021
Antioxidants of natural origin are used in medicines and cosmetics with several benefits, such as: photoprotective action, anti-aging, moisturizing and anti-pollutant.
Baby, André Rolim, Escudeiro, Cassiano Carlos, Freire, Thamires Batello, Júnior, Orlando Rodrigues, Pinto, Claudinéia Aparecida Sales de Oliveira, Velasco, Maria Valéria Robles   +5 more
core   +1 more source

A Simple, Ultrastable, and Cost‐Effective Oxygen‐Scavenging System for Long‐Term DNA‐PAINT Imaging

Small, Volume 22, Issue 9, 12 February 2026.
A simple, enzyme‐free, and cost‐effective oxygen scavenging system enhances DNA‐PAINT super‐resolution microscopy by increasing photostability, minimizing docking strand degradation, and enabling faster, high‐precision localizations. Its long‐term stability supports extended imaging, yielding improved spatial resolution and image quality.
Rebecca T. Perelman, George M. Church, Johannes Stein   +2 more
wiley   +1 more source

Types of ultraviolet filters and their combination used in sunscreen determine the appropriate sun protection factor values in vivo

Journal of the Egyptian Women’s Dermatologic Society
Background The application of sunscreen has been shown to prevent the detrimental effects of ultraviolet. The effectiveness of a sunscreen formulation protection against ultraviolet B is measured by sun protection factor (SPF) and its value determined by
Diah Puspitosari, Andini D. Anjani, Kartika Ruchiatan, Oki Suwarsa, Hartati P. Dharmadji, Eva K. Sutedja, Srie P. Gondokaryono, Trustia Rizqandaru, Reti Hindritiani   +8 more
doaj   +1 more source

Inclusion Complexes of Sunscreen Agents with β-Cyclodextrin: Spectroscopic and Molecular Modeling Studies

Journal of Spectroscopy, 2013
The inclusion complexes of selected sunscreen agents, namely, oxybenzone (Oxy), octocrylene (Oct), and ethylhexyl-methoxycinnamate (Cin) with β-cyclodextrin (β-CD) were studied by UV-Vis spectroscopy, differential scanning calorimetry (DSC), 13C NMR ...
Nathir A. F. Al-Rawashdeh, Khaled S. Al-Sadeh, Mohammad Bassam Al-Bitar   +2 more
doaj   +1 more source

Pyrazole derivatives as polyethylene oxidative destruction stabilizers [PDF]

, 2012
The possibility of newly synthesized pyrazole derivatives using as heat stabilizers of high-pressure polyethylene (LDPE): 1-acetyl-4-methyl-3(5)-(2-(3-nitrophenyl)vinyl)-1H-pyrazole (additive 1) and 4benzoyl-3-(2-(4-nitrophenyl)vinyl-5-phenyl-1-tosyl-1H-
Baulin, I. S., But’ko, T. A., Kuz’menok, N. M., Mikhalyonok, S. G., Nesterova, S. V., Yatsenko, V. V., Кoval’chuk, T. A.   +6 more
core  

Biotechnological Potential of Seaweeds from Bahia, Brazil: Metabolomic insights, Photoprotection and Antioxidant Activity

Chemistry &Biodiversity, Volume 22, Issue 12, December 2025.
Chemical profile, photoprotective, and antioxidant potential of Padina sp., Caulerpa sertularioides, and Solieria filiformis collected in Bahia, Brazil. ABSTRACT Seaweeds have wide biotechnological applications. This study evaluated the chemical profile, photoprotective, and antioxidant potential of Padina sp., Caulerpa sertularioides, and Solieria ...
Keila Almeida Santana, Isadora de Jesus da Silva, Victor Pena Ribeiro, José Marcos de Castro Nunes, Hosana Maria Debonsi, Ian Castro‐Gamboa, Lorena Rigo Gaspar, Gustavo Souza dos Santos, Aníbal de Freitas Santos Júnior   +8 more
wiley   +1 more source

Graphene Oxide as an Auxiliary UV Photoprotector for Polypropylene

Polymer Composites, Volume 46, Issue 16, Page 14986-15000, 10 November 2025.
Auxiliary UV Protection. ABSTRACT This work presents the preparation and characterization of polypropylene (PP)/graphene oxide (GO) nanocomposites by adding photostabilizing additives to obtain materials with enhanced resistance to photodegradation. The synthesized GO (modified Hummers' method) was characterized using state‐of‐the‐art techniques.
Nathalia S. S. Amorim, Muhammad Nisar, Gabriel M. Pinto, Guilhermino J. M. Fechine   +3 more
wiley   +1 more source

Investigations into the characterization, degradation, and applications of biodegradable polymers by mass spectrometry

Mass Spectrometry Reviews, Volume 44, Issue 6, Page 947-988, November/December 2025.
Abstract Biodegradable polymers have been getting more and more attention because of their contribution to the plastic pollution environmental issues and to move towards a circular economy. Nevertheless, biodegradable materials still exhibit various disadvantages restraining a widespread use in the market.
Paola Rizzarelli, Melania Leanza, Marco Rapisarda   +2 more
wiley   +1 more source

New Benzotriozole Phthalocyanine Nickel(II) Photostabilizer for Low Density Polyethylene [PDF]

, 2013
Benzotiozole Phthalocyanine Nickel(II) has been prepared and characterized by elemental analysis and FT-IR techniques. This new compound imposes three bathways to stablize low density polyethylene (LDPE) due to nature of its complex structure.The ...
Al-Mowali, Ali H., Al-Nasir, Einas A., Almalki, Ziade T., Ebrahim, Ebrahim K., Mohammed, Fais J.   +4 more
core   +1 more source