Results 111 to 120 of about 25,331 (250)

Preparação e caracterização de blendas de amido termoplástico com poli (ácido lático) enxertado com anidrido maleico [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014.A utilização de materiais biodegradáveis e de fonte renovável, em diferentes setores ...
Clasen, Samuel Hammes
core  

Preparation and properties of electrically conductive, flexible and transparent silver nanowire/poly (lactic acid) nanocomposites

, 2017
As the everyday use of petroleum-based products has raised environmental concerns, there is an urgent need to replace them with green materials. In this work, an eco-friendly, highly conductive, flexible silver nanowire/poly (lactic acid) film has been ...
Azizi, Hamed, Ghasemi, Ismaeil, Fallahi, Hedieh, Karrabi, Mohammad   +3 more
core   +1 more source

Enhanced Glycolysis‐Driven Histone H3K18 Lactylation Regulates Epileptogenesis by Modulating the E3 Ubiquitin Ligase COP1

Advanced Science, EarlyView.
Neuronal PKM2‐driven glycolysis generates excess lactate that triggers histone H3K18 lactylation (H3K18la), establishing a pathogenic metabolic‐epigenetic axis in epilepsy. Elevated H3K18la enriches the Cop1 promoter, transcriptionally upregulating the E3 ubiquitin ligase COP1, which subsequently drives proteasomal degradation of GABAARβ2 and impairs ...
Yuan Meng, Yanlin Guo, Liumi Jiang, Jing Luo, Yan Liu, Ziwei Yuan, Pingyang Ke, Ran Duan, Fei Xiao   +8 more
wiley   +1 more source

T Cell Exhaustion in Cancer Immunotherapy: Heterogeneity, Mechanisms, and Therapeutic Opportunities

Advanced Science, EarlyView.
T cell exhaustion limits immunotherapy efficacy. This article delineates its progression from stem‐like to terminally exhausted states, governed by persistent antigen, transcription factors, epigenetics, and metabolism. It maps the exhaustion landscape in the TME and proposes integrated reversal strategies, providing a translational roadmap to overcome
Yang Yu, Xiaoyu Yao, Qingyang Wang, Mengrui Yang, Runze Li, Jiangjiang Qin, Jing Zhuang, Changgang Sun   +7 more
wiley   +1 more source

Exploring the effect of hemp fibers’ addition on the properties of PLA/PPAd biodegradable blends

Sustainable Chemistry for the Environment
Poly(lactic acid) (PLA) is a compostable aliphatic polymer with enhanced strength and toughness, and it is a promising material for packaging products.
Eleftheria Xanthopoulou, Nikolaos Pardalis, Alexandra Zamboulis, Dimitrios N. Bikiaris   +3 more
doaj   +1 more source

Preparation of microcellular poly(lactic acid) composites foams with improved flame retardancy

, 2017
In this study, flame-retardant poly(lactic acid) foams with satisfactory cell structures were prepared by microcellular foaming technology using phosphorus-containing flame retardant and graphene as the charring agent.
Wang, Jingjing, Zhai, Wentao, Zhao, Dan, Wang, Kun   +3 more
core  

Structural reorganization of cylindrical nanoparticles triggered by polylactide stereocomplexation [PDF]

, 2014
Co-crystallization of polymers with different configurations/tacticities provides access to materials with enhanced performance. The stereocomplexation of isotactic poly(L-lactide) and poly(D-lactide) has led to improved properties compared with each ...
Wilson, Neil R., Dyson, M.A., Schiller, Tara L, Dove, Andrew P., Schiller, T.L., Schiller, Tara, Dyson, M Adam, Sanchez, A.M., Sun, Liang, O'Reilly, R.K., Wilson, Neil R, Pitto-Barry, Anaïs, Schiller, Tara L., Kirby, Nigel, Sloan, Jeremy, Dyson, Mark Adam, Sun, L., O'Reilly, Rachel K; id_orcid, O'Reilly, Rachel K, Sloan, J., O’Reilly, Rachel K., Dove, Andrew P, Sanchez, Ana M., Kirby, N., Wilson, N.R., Dove, A.P., Sanchez, Ana M   +26 more
core   +1 more source

Recent Advances in Laser‐Induced Graphene‐Based Gas Sensors: From Sensing Mechanisms to Biomedical Applications

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Md Abu Sayeed Biswas, Ankan Dutta, Shuvendu Das, Abu Musa Abdullah, Wanqing Zhang, Fatema Tuz Zohra, Huanyu Cheng   +6 more
wiley   +1 more source

Biotechnological Production of Lactic Acid and Its Recent Applications

Food Technology and Biotechnology, 2006
Lactic acid is widely used in the food, cosmetic, pharmaceutical, and chemical industries and has received increased attention for use as a monomer for the production of biodegradable poly(lactic acid).
Young-Jung Wee, Jin-Nam Kim, Hwa-Won Ryu
doaj  

Humidity-induced porous poly(lactic acid) membrane with enhanced flux for oil–water separation

Adsorption Science & Technology, 2019
Biodegradable and efficient filtration membrane is essential to practical oil–water separation. Herein, we fabricated highly porous membrane induced by the humidity.
Zhi Liu, Jianghui Zhao, Wei Li, Jian Xing, Lan Xu, Jihuan He   +5 more
doaj   +1 more source