Results 1 to 10 of about 24,468 (194)

Chemical Recycling of Polymethacrylates

CHIMIA
Polymethacrylates, including poly(methyl methacrylate) (PMMA), are produced on a large scale for applications ranging from optics to construction, yet their end-of-life fate remains largely linear. Chemical recycling to regenerate the monomer (depolymerization) offers a promising route to circularity, but conventional methods such as pyrolysis rely on ...
Jones, Glen R., Anastasaki, Athina
openaire   +4 more sources

Chemically Recyclable Biobased Polyurethanes

ACS Macro Letters, 2016
Polyurethanes (PUs), in the form of coatings, adhesives, sealants, elastomers, and foams, play a vital role in the consumer goods, automotive, and construction industries. However, the inevitable disposal of nondegradable postconsumer polyurethane products constitutes a massive waste management problem that has yet to be solved.
Deborah K, Schneiderman, Marie E, Vanderlaan, Alexander M, Mannion, Tessie R, Panthani, Derek C, Batiste, Jay Z, Wang, Frank S, Bates, Christopher W, Macosko, Marc A, Hillmyer   +8 more
openaire   +2 more sources

Chemical recycling of polyesters

Polimery, 2019
In the presented paper, two basic strategies that can be used in the processes of chemical recycling of polyester material were described. The first of them involves increasing the molar mass of recycled materials in the solid-state polycondensation (SSP) process and/or joining their chains with various types of substances easily reacting with the end ...
MACIEJ DEBOWSKI, Anna Iuliano, Andrzej Plichta, Sebastian Kowalczyk, Zbigniew Florjanczyk   +4 more
openaire   +2 more sources

Epoxy Thermosets Designed for Chemical Recycling

Chemistry – An Asian Journal, 2023
AbstractEpoxy thermosets constitute a significant portion of high‐performance plastics, as they possess excellent thermal and mechanical properties that are applicable in a wide range of industries. Nevertheless, traditional epoxy networks show strict limitations regarding chemical recycling due to their covalently crosslinked structures.
Tankut Türel, Özgün Dağlar, Fabian Eisenreich, Željko Tomović   +3 more
openaire   +3 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Mechanochemically Accelerated Deconstruction of Chemically Recyclable Plastics

Science Advances, 2023
Plastics redesign for circularity has primarily focused on monomer chemistries enabling faster deconstruction rates concomitant with high monomer yields. Yet, during deconstruction, polymer chains interact with their reaction medium, which remains underexplored in polymer reactivity. Here, we show that, when plastics are deconstructed in reaction media
Mutian Hua, Zhengxing Peng, Rishabh D. Guha, Xiaoxu Ruan, Ka Chon Ng, Jeremy Demarteau, Shira Haber, Sophia N. Fricke, Jeffrey A. Reimer, Miquel B. Salmeron, Kristin A. Persson, Cheng Wang, Brett A. Helms   +12 more
openaire   +4 more sources

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Rab14 regulates the transport of human papillomavirus to the trans‐Golgi network for infectious cell entry

FEBS Letters, EarlyView.
This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley   +1 more source