Results 61 to 70 of about 17,255 (256)

Are bioplastics and plant-based materials safer than conventional plastics? In vitro toxicity and chemical composition

Environment International, 2020
Plastics contain a complex mixture of known and unknown chemicals; some of which can be toxic. Bioplastics and plant-based materials are marketed as sustainable alternative to conventional plastics.
Lisa Zimmermann, Andrea Dombrowski, Carolin Völker, Martin Wagner   +3 more
doaj   +1 more source

Petro‐based and bio‐based plasticizers: Chemical structures to plasticizing properties [PDF]

Journal of Polymer Science Part A: Polymer Chemistry, 2015
ABSTRACTPolymeric materials, in particular PVC, can find various industrial utilizations thanks to the use of plasticizers added during their processing. The most famous applications include wires and cables, coatings, flooring, paintings, packaging… After some generalities concerning plasticization theories and the description of plasticized petro ...
Maëva Bocqué, Coline Voirin, Vincent Lapinte, Sylvain Caillol, Jean‐Jacques Robin   +4 more
openaire   +1 more source

Quantitative proteomic analysis reveals different characteristics of bladder cancer cells after exposure to bisphenol A

FEBS Open Bio, EarlyView.
Bisphenol A (BPA), a common chemical in plastics, exerts dual effects on bladder cancer cells: low doses promote growth and migration, while high doses suppress growth and migration. Multi‐omics and bioinformatics reveal BPA acts via MAPK and inflammatory pathways.
Shaomin Niu, Lanlan Li, Wenjuan Jia, Hanzhong Feng, Xiaoquan Yu, Youli Zhao, Fengzhi Yuan, Hui Ding, Junqiang Tian, Yong‐Xing He, Zhiping Wang   +10 more
wiley   +1 more source

Consistently inconsistent: The false promise of ‘sustainable’ plastics

Cambridge Prisms: Plastics
This perspective explains why the lack of regulation around bioplastics remains a hurdle for the successful development and implementation of a legally binding agreement (the Global Plastics Treaty) by the United Nations Environment Assembly to curb ...
Justine Ammendolia, Tony R. Walker
doaj   +1 more source

Decreased cold‐sensing function of the transient receptor potential channel TRPM8 from tailed amphibians

FEBS Open Bio, EarlyView.
Despite frogs avoiding low temperatures, examination of four salamander species revealed that none avoided cold and all possessed cold tolerance. Functional analysis of TRPM8, a cold sensor, showed that all salamander TRPM8s had lost their cold sensitivity.
Tadahiro Sawao, Daiki Kobayashi, Shogo Hori, Osamu Saitoh   +3 more
wiley   +1 more source

Bio-based plastics – a sustainable solution to plastic pollution

Microbiology Australia
Global annual plastic production is >410 × 106 tonnes with an annual rate increase of 4%; most of this plastic is non-biodegradable. Bio-based plastics (also known as bioplastics) are formed from polymers created from renewable or recycled raw materials, making them part of a sustainable plastic life cycle and part of a circular economy.
Arturo Aburto Medina, Soulayma Hassan, Chaitali Dekiwadia, Chengrong Chen, Andrew S. Ball   +4 more
openaire   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Low Cycle Repetitive Loading of Ti‐6Al‐4V‐Epoxy Composite Lattice Structures for Enhanced Energy Dissipation and Damage Tolerance

Advanced Engineering Materials, EarlyView.
Composite Ti–6Al–4V–epoxy lattice structures are additively manufactured and epoxy infiltrated for cyclic loading. At low lattice volume fractions, hybridization produces synergistic gains in stiffness and energy dissipation. At higher volume fractions, synergy diminishes, although composites still exceed metallic lattices in specific energy ...
Joey Tallon, Jordan Noronha, Justin Dirrenberger, Andrey Molotnikov   +3 more
wiley   +1 more source

Sustainable and recyclable super engineering thermoplastic from biorenewable monomer

Nature Communications, 2019
Super engineering plastics that utilise bio-derived cyclic monomers rarely offer the same thermal/mechanical properties, scalability and recyclability as petrochemical derived plastics.
Seul-A Park, Hyeonyeol Jeon, Hyungjun Kim, Sung-Ho Shin, Seunghwan Choy, Dong Soo Hwang, Jun Mo Koo, Jonggeon Jegal, Sung Yeon Hwang, Jeyoung Park, Dongyeop X. Oh   +10 more
doaj   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source