Results 11 to 20 of about 474 (165)

Photostabilizing Efficiency of PVC in the Presence of Schiff Bases as Photostabilizers [PDF]

Molecules, 2015
The photostabilization of polyvinyl chloride (PVC) films by Schiff bases was investigated. Polyvinyl chloride films containing 0.5 wt % Schiff bases were produced using the same casting method as that used for additive-free PVC films from tetrahydrofuran
Emad Yousif, Ahmed A. Al-Amiery, Abdulhadi Kadihum, Abdul Amir H. Kadhum, Abu Bakar Mohamad   +4 more
doaj   +5 more sources

Reliability and accuracy of single-molecule FRET studies for characterization of structural dynamics and distances in proteins. [PDF]

Nat Methods, 2023
Single-molecule Förster-resonance energy transfer (smFRET) experiments allow the study of biomolecular structure and dynamics in vitro and in vivo. We performed an international blind study involving 19 laboratories to assess the uncertainty of FRET ...
Agam G, Gebhardt C, Popara M, Mächtel R, Folz J, Ambrose B, Chamachi N, Chung SY, Craggs TD, de Boer M, Grohmann D, Ha T, Hartmann A, Hendrix J, Hirschfeld V, Hübner CG, Hugel T, Kammerer D, Kang HS, Kapanidis AN, Krainer G, Kramm K, Lemke EA, Lerner E, Margeat E, Martens K, Michaelis J, Mitra J, Moya Muñoz GG, Quast RB, Robb NC, Sattler M, Schlierf M, Schneider J, Schröder T, Sefer A, Tan PS, Thurn J, Tinnefeld P, van Noort J, Weiss S, Wendler N, Zijlstra N, Barth A, Seidel CAM, Lamb DC, Cordes T.   +46 more
europepmc   +9 more sources

Photostabilizing Efficiency of Poly(vinyl chloride) in the Presence of Organotin(IV) Complexes as Photostabilizers [PDF]

Molecules, 2016
Three organotin complexes containing furosemide as a ligand (L), Ph3SnL, Me2SnL2 and Bu2SnL2, were synthesized and characterized. Octahedral geometry was proposed for the Me2SnL2 and Bu2SnL2, while the Ph3SnL complex has trigonal bipyramid geometry.
Mustafa M. Ali, Gamal A. El-Hiti, Emad Yousif   +2 more
doaj   +3 more sources

Mitigating UV‑C Degradation in Polypropylene Using Hybrid TiO2/Few-Layer Graphene/Photostabilizer Systems [PDF]

ACS Omega
Jessica C. Ferreira Gimenez, Robert Paiva, Sophia H. F. Bonatti, Lucas H. Staffa, Edenir Rodrigues Pereira-Filho, Emna Helal, Nicole R. Demarquette, Manoel G. P. Homem, Sandra A. Cruz   +8 more
doaj   +2 more sources

Development of Efficient Supramolecular Photostabilizer for Carotenoids and Retinoids: Analyses and Application Research. [PDF]

J Cosmet Dermatol
ABSTRACT Background Carotenoids and retinol are well known for their potent antioxidant and biological properties in pharmaceuticals, foods, and cosmetics. However, their poor photostability presents a significant challenge that cannot be effectively addressed through simple formulation strategies such as encapsulation.
Zhao M, Chen S, Hu K, Evseenko VI, Meteleva ES, Zelikman MV, Dushkin AV, Mastova AV, Ulyanova MA, Kononova PA, Selyutina OY, Xu W, Polyakov NE.   +12 more
europepmc   +2 more sources

Increasing of photostability of HNS explosive in the presence of UV photostabilizers

Defence Technology, 2021
The photostabilies of hexanitrostillbene (HNS) were studied at 1% wt. of photostabilizers. The photostabilizers of Chiguard BP-12 (UV- 531), ADK STAB LA-326 (UV- 326), ADK STAB LA-32 (UV-P), Irganox 1010 and Everstab LS944 were used in this study.
Hamid Reza Pouretedal, Sajjad Damiri, Zynab Karami   +2 more
doaj   +1 more source

Polystyrene dopped with Schiff base to reduce outdoor plastic degradation for sustainable environment

South African Journal of Chemical Engineering, 2021
There is an increase demand for materials that can be reused or last for longer time to achieve a more sustainable environment, not only in terms of chemical and energy required to produce these products but also the energy required to dispose these ...
Hadeel S. Mansoor, Raghda Alsayed, Mustafa Abdallh, Dina S. Ahmed, Muna Bufaroosha, Nadia Salihe, Emad Yousif   +6 more
doaj   +1 more source

Morphological, Photochemical and Spectroscopic Studies of Ibuprofen-Tin Complexes

Iraqi Journal of Industrial Research, 2022
Poly(vinyl chloride) (PVC) was prepared and the photo-stabilization of polymer films was studied using ultraviolet (UV) light. The efficiency of the synthesized polymer complex of ibuprofen-tin which is the photo-stabilizer in this study afterward of 300
Ahmed Al-Ani, Dina S. Ahmed, Mohammed H. Al-Mashhadani, Mustafa Abdallh, Emad Yousif   +4 more
doaj   +1 more source

Extracted lignin from oil palm empty fruit bunch as natural eco-friendly poly (vinyl chloride) photo-stabilizer

Materials Science for Energy Technologies, 2022
In this work it was used extracted lignin from oil palm empty fruit bunch by kraft delignification process as environmentally friendly photo-stabilizer of Poly (vinyl chloride) thin films.
Zeyad Fadhil, Dheaa Shamikh Zageer, Abbas Hasan Faris, Mohammed H. Al-Mashhadani, Ahmed Ahmed, Hassan Hashim, Emad Yousif   +6 more
doaj   +1 more source

Modification of poly(vinyl chloride) by mefenamic acid in presence of micro metallic oxides as self photostabilizer

Materials Science for Energy Technologies, 2023
To date, many approaches have been made to stabilize the chemical structure of PVC when exposed to sunlight in outdoor usage. This work includes utilizing mefenamic acid (1 % per polymer weight) as a new photo stabilizer unit to adjust PVC to enhance ...
Mohammed H. Al-Mashhadani, Dhuha H. Fadhil, Ahmed A. Ahmed, Amani A. Husain, Hassan Hashim, Emad Yousif, Muna Bufaroosha   +6 more
doaj   +1 more source