aggregation

Detection of Protein Aggregation in Live Plasmodium Parasites [Pharmacology]

The rapid evolution of resistance in the malaria parasite to every single drug developed against it calls for the urgent identification of new molecular targets. Using a stain specific for the detection of intracellular amyloid deposits in live cells we have detected the presence of abundant protein aggregates in Plasmodium falciparum blood stages and female gametes cultured in vitro, in the blood stages of mice infected by Plasmodium yoelii, and in the mosquito stages of the murine malaria species Plasmodium berghei. Aggregated proteins could not be detected in early rings, the parasite form that starts the intraerythrocytic cycle. A proteomics approach was followed to pinpoint actual aggregating polypeptides in functional P. falciparum blood stages, which resulted in the identification of 369 proteins, with roles particularly enriched in nuclear import-related processes. Five aggregation-prone short peptides selected from this protein pool exhibited different aggregation propensity according to Thioflavin-T fluorescence measurements, and were observed to form amorphous aggregates and amyloid fibrils in transmission electron microscope images. The results presented suggest that generalized protein aggregation might have a functional role in malaria parasites. Future antimalarial strategies based on the upsetting of the pathogen's proteostasis and therefore affecting multiple gene products could represent the entry to new therapeutic approaches.




aggregation

Five Companies You’ve Definitely Heard of Join Up to Buy Solar Energy in Aggregation Deal

It’s hard to find a common thread between the business models of Gap, Bloomberg, Cox, Salesforce and Workday but today they are announcing that they all have one big thing in common: their desire to clean up their organizations’ energy supply by using renewable energy.




aggregation

[ASAP] Thiosemicarbazone Derivatives as Inhibitors of Amyloid-ß Aggregation: Effect of Metal Coordination

Inorganic Chemistry
DOI: 10.1021/acs.inorgchem.0c00467




aggregation

[ASAP] A Spectroscopic Marker for Structural Transitions Associated with Amyloid-ß Aggregation

Biochemistry
DOI: 10.1021/acs.biochem.0c00113




aggregation

Precise Tracking and Modulating Aggregation Structures of Conjugated Copolymers in Solutions

Polym. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0PY00456A, Paper
Zi-Yuan Wang, Ze-Fan Yao, Yang Lu, Li Ding, Zi-Di Yu, Hao-Yang You, Xin-Yi Wang, Yang-Yang Zhou, Lin Zou, Jie-Yu Wang, Jian Pei
The effects of the backbone shape of the conjugated polymers on the aggregation features in solutions, and further on the morphology in solid states are rarely reported. Herein, four copolymers,...
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aggregation

Aggregation-induced emission luminogens for RONS sensing

J. Mater. Chem. B, 2020, 8,3357-3370
DOI: 10.1039/C9TB02310K, Review Article
Jun Dai, Chong Duan, Yu Huang, Xiaoding Lou, Fan Xia, Shixuan Wang
The development of AIE bioprobes for RONS sensing in living systems is now summarized. We discuss some representative examples of AIEgen based bioprobes in terms of their molecular design, sensing mechanism and sensitive sensing in vitro and in vivo.
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aggregation

Human serum albumin-based doxorubicin prodrug nanoparticles with tumor pH-responsive aggregation-enhanced retention and reduced cardiotoxicity

J. Mater. Chem. B, 2020, 8,3939-3948
DOI: 10.1039/D0TB00327A, Paper
Boya Zhang, Shiyu Wan, Xinyu Peng, Mingying Zhao, Sai Li, Yuji Pu, Bin He
A nano-assembly of pH-sensitive doxorubicin prodrug and human serum albumin shows tumor pH-responsive aggregation, enhanced tumor retention and reduced cytotoxicity.
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aggregation

Chinese News Aggregation App Targets $3 Billion U.S. IPO

Qu Toutiao, which means Fun Headlines in Chinese, is reportedly making its own fun headlines these days, telling sources that it is eyeing an initial public offering that could value it as high as $3 billion.

If successful, it would be an extraordinary valuation for a company, a news and video aggregation mobile app popular in mostly rural areas of China, that was launched less than 2 years ago. The company is considering an IPO in New York as soon as early this year, people familiar with the matter told Bloomberg News.

complete article




aggregation

Techmeme Brings Its Aggregation Formula to a Daily Podcast

Techmeme, the online aggregator of record for technology industry news, is adding some audio in the form of a podcast: the Techmeme Ride Home.

Beginning today, the site’s new podcast will appear at 5 p.m. every weekday. Over 20 minutes, host Brian McCullough (from The Internet History podcast) will summarize the day’s top tech news and commentary from around the web and social media.

Plain-vanilla news aggregation is unusual in podcasts. Even in tech, podcasts tend to be personality-driven, more often involving hosts providing commentary on the big news of the week rather than just the news itself. McCullough thinks Techmeme can offer something different.

complete article




aggregation

[ASAP] Aggregation-Dependent Photoreactive Hemicyanine Assembly as a Photobactericide

ACS Applied Materials & Interfaces
DOI: 10.1021/acsami.0c03894




aggregation

Smart meter data analytics: electricity consumer behavior modeling, aggregation, and forecasting / Yi Wang, Qixin Chen, Chongqing Kang

Online Resource




aggregation

Effect of freeze/thaw on aggregation and transport of nano-TiO2 in saturated porous media

Environ. Sci.: Nano, 2020, Advance Article
DOI: 10.1039/D0EN00008F, Paper
Jeffrey M. Farner, Jacopo De Tommaso, Heather Mantel, Rachel S. Cheong, Nathalie Tufenkji
Research has focused on nanoparticle (NP) aggregation and transport behavior in saturated granular porous media, but few studies have looked at the effect that temperature variability associated with winter conditions will have on engineered NPs.
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aggregation

Privacy-enhancing aggregation techniques for smart grid communications / Rongxing Lu

Lu, Rongxing, author




aggregation

Synthesis and aggregation behaviour of single-chain, 1,32-alkyl-branched bis(phosphocholines) – part 2: lateral chain length triggers self-assembling from sheets to fibres to vesicles

Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00534G, Paper
Kai Gruhle, Max Tuchtenhagen, Sindy Müller, Gerd Hause, Annette Meister, Simon Drescher
The synthesis of six single-chain, alkyl-branched bolalipids and first investigations of the lyotropic behaviour of these lipids are reported.
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aggregation

Hyperbolic and kinetic models for self-organised biological aggregations: a modelling and pattern formation approach / Raluca Eftimie

Online Resource




aggregation

Efficient near-infrared photosensitizer with aggregation-induced emission characteristics for mitochondria-targeted and image-guided photodynamic cancer therapy

Mater. Chem. Front., 2020, Advance Article
DOI: 10.1039/D0QM00170H, Research Article
Hanxiao Yang, Jiabao Zhuang, Nan Li, Yue Li, Shiyu Zhu, Jiaxin Hao, Jiayao Xin, Na Zhao
A highly efficient near-infrared photosensitizer with aggregation-induced emission characteristics was developed for mitochondria-targeted and image-guided photodynamic cancer therapy.
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aggregation

The origin of the unusual red-shifted aggregation-state emission of triphenylamine-imidazole molecules: excimers or a photochemical reaction?

Mater. Chem. Front., 2020, 4,1411-1420
DOI: 10.1039/C9QM00737G, Research Article
Jin Liu, Jianai Chen, Yujie Dong, Yue Yu, Shitong Zhang, Jianli Wang, Qingbao Song, Weijun Li, Cheng Zhang
Revealing the actual origin of the unusual red-shifted aggregation-state emission of triphenylamine-imidazole molecules: is the photochemical reaction rather than the excimers.
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aggregation

Origin of aggregation-induced enhanced emission: role of pseudo-degenerate electronic states of excimers formed in aggregation phases

J. Mater. Chem. C, 2020, Advance Article
DOI: 10.1039/C9TC07067B, Paper
Wataru Ota, Ken Takahashi, Kenji Higashiguchi, Kenji Matsuda, Tohru Sato
The origin of aggregation-induced enhanced emission (AIEE) is investigated considering cyano-substituted 1,2-bis(pyridylphenyl)ethene (CNPPE) as an example.
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aggregation

Aggregation-State engineering and emission switching in D-A-D' AIEgens featuring dual emission and high contrast MCL

J. Mater. Chem. C, 2020, Accepted Manuscript
DOI: 10.1039/D0TC01733G, Paper
Ji-Hua Tan, Wen-Cheng Chen, Shao-Fei Ni, Zhipeng Qiu, yingying zhan, Zhiwen Yang, Jingwen Xiong, Chen Cao, Yanping Huo, Chun-Sing Lee
Thermally activated delayed fluorescence (TADF) and room-temperature phosphorescence (RTP) have attracted much recent attention for their capabilities to utilize triplet excitons for emission. Herein, we demonstrate a strategy for switching...
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aggregation

[ASAP] Aggregation-Induced Emission Active Polyacrylates via Cu-Mediated Reversible Deactivation Radical Polymerization with Bioimaging Applications

ACS Macro Letters
DOI: 10.1021/acsmacrolett.0c00281




aggregation

[ASAP] Interaction Volume Is a Measure of the Aggregation Propensity of Amyloid-ß

The Journal of Physical Chemistry Letters
DOI: 10.1021/acs.jpclett.0c00922




aggregation

[ASAP] Sugar-Based Aggregation-Induced Emission Luminogens: Design, Structures, and Applications

Chemical Reviews
DOI: 10.1021/acs.chemrev.9b00814




aggregation

[ASAP] Heteroaggregation between Charged and Neutral Particles

Langmuir
DOI: 10.1021/acs.langmuir.0c00667




aggregation

A single-ligand-protected Eu60−nGd(Tb)n cluster: a reasonable new approach to expand lanthanide aggregations

Inorg. Chem. Front., 2020, Advance Article
DOI: 10.1039/D0QI00226G, Research Article
Xi-Ming Luo, Ning-Fang Li, Qing-Fang Lin, Jia-Peng Cao, Peng Yuan, Yan Xu
Two fascinating configurations were obtained based on mixed-lanthanide conditions, abbreviated as mixed-Ln60. The synthesis provides a way to obtain similar metal-core Ln high-nuclearity clusters, breaking the ionic radius limitation.
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aggregation

Exploiting cation aggregation in new magnesium amidohaloaluminate electrolytes for magnesium batteries

Inorg. Chem. Front., 2020, Advance Article
DOI: 10.1039/C9QI01606F, Research Article
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Etienne V. Brouillet, Marco Amores, Serena A. Corr, Stuart D. Robertson
The active species in magnesium electrolytes is regularly assigned as being the thermodynamically stable dinuclear [Mg2Cl3]+ cation. By deliberately targeting other implicated aggregates, their effect on Mg-ion battery performance is easily ascertained.
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aggregation

Ruthenium(III) complexes containing thiazole-based ligands that modulate amyloid-β aggregation

Metallomics, 2020, 12,491-503
DOI: 10.1039/D0MT00054J, Paper
Samantha E. Huffman, Gideon K. Yawson, Samuel S. Fisher, Paige J. Bothwell, David C. Platt, Marjorie A. Jones, Christopher G. Hamaker, Michael I. Webb
Alzheimer's Disease (AD) is a devastating neurodegenerative disorder where one of the commonly observed pathological hallmarks is extracellular deposits of the peptide amyloid-β (Aβ).
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aggregation

Diphenyl Diselenide Protects Caenorhabditis elegans Model for Huntington's Disease by Activation of Antioxidant Pathway and Decrease in Protein Aggregation

Metallomics, 2020, Accepted Manuscript
DOI: 10.1039/D0MT00074D, Paper
Fabiane Bicca Obetine Baptista, Marina Lopes Machado, Aline da Silva Franzen, Larissa Marafiga Cordeiro, Tassia da Silveira, Leticia Arantes, Félix A. A. Soares
Huntington’s disease (HD) is an autosomal dominant, progressive neurodegenerative disease with a distinct phenotype. It occurs due to a mutation in huntingtin (or IT19) gene with abnormal CAG repeat, leading...
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aggregation

A high-throughput plasmonic tongue using an aggregation assay and nonspecific interactions: classification of taste profiles in maple syrup

Anal. Methods, 2020, Advance Article
DOI: 10.1039/C9AY01942A, Paper
Simon Forest, Trevor Théorêt, Julien Coutu, Jean-Francois Masson
A simple colorimetric test detects off-flavour profiles of maple syrups in minutes, which are detectable by the naked eye.
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aggregation

[ASAP] Structural Characterization of Individual a-Synuclein Oligomers Formed at Different Stages of Protein Aggregation by Atomic Force Microscopy-Infrared Spectroscopy

Analytical Chemistry
DOI: 10.1021/acs.analchem.0c00593




aggregation

[ASAP] Highly Sensitive and Selective Detection of Heparin in Serum Based on a Long-Wavelength Tetraphenylethylene–Cyanopyridine Aggregation-Induced Emission Luminogen

Analytical Chemistry
DOI: 10.1021/acs.analchem.0c00496




aggregation

Different-shaped micro-objects driven by active particle aggregations

Soft Matter, 2020, Advance Article
DOI: 10.1039/D0SM00160K, Paper
Chen Wang, Hongyuan Jiang
We study the dynamics of passive micro-objects in the active bath. The motion of micro-objects depends on the pattern of active particle aggregations.
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aggregation

Development of novel N-(6-methanesulfonyl-benzothiazol-2-yl)-3-(4-substituted-piperazin-1-yl)-propionamides with cholinesterase inhibition, anti-β-amyloid aggregation, neuroprotection and cognition enhancing properties for the therapy of Alzheimer's d

RSC Adv., 2020, 10,17602-17619
DOI: 10.1039/D0RA00663G, Paper
Open Access
Chandra Bhushan Mishra, Shruti Shalini, Siddharth Gusain, Amresh Prakash, Jyoti Kumari, Shikha Kumari, Anita Kumari Yadav, Andrew M. Lynn, Manisha Tiwari
A novel series of benzothiazole–piperazine hybrids were rationally designed, synthesized, and evaluated as multifunctional ligands against Alzheimer's disease (AD).
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aggregation

Heat-resistant Pb(II)-based X-ray scintillating metal-organic frameworks for sensitive dosage detection via the aggregation-induced luminescent chromophore

Dalton Trans., 2020, Accepted Manuscript
DOI: 10.1039/D0DT00974A, Communication
Jian Lu, Shuai-Hua Wang, Yan Li, Wen-Fei Wang, Cai Sun, Pei-Xin Li, Fa-Kun Zheng, Guo-Cong Guo
The synergy of unusual X-aggregation induced luminescent chromophores and heavy Pb(II) ions has facilitated excellent X-ray scintillation of two structurally similar Pb-SMOFs, which are heat-resistant due to solvent-free lattices. Owing...
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aggregation

[ASAP] Protective Effects of a Neurohypophyseal Hormone Analogue on Prion Aggregation, Cellular Internalization, and Toxicity

ACS Chemical Neuroscience
DOI: 10.1021/acschemneuro.9b00299




aggregation

[ASAP] A Master Regulator of a-Synuclein Aggregation

ACS Chemical Neuroscience
DOI: 10.1021/acschemneuro.0c00216




aggregation

Enhanced type I photoreaction of indocyanine green via electrostatic-force-driven aggregation

Nanoscale, 2020, 12,9517-9523
DOI: 10.1039/D0NR01208D, Paper
Huizhen Fan, Yu Fan, Wenna Du, Rui Cai, Xinshuang Gao, Xinfeng Liu, Hao Wang, Lei Wang, Xiaochun Wu
ICG forms aggregates in positively charged mesoporous silica, which show an enhanced type I photoreaction pathway.
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aggregation

Size-dependent aggregation of hydrophobic nanoparticles in lipid membranes

Nanoscale, 2020, 12,9452-9461
DOI: 10.1039/D0NR00868K, Paper
Open Access
Enrico Lavagna, Jonathan Barnoud, Giulia Rossi, Luca Monticelli
Aggregation of hydrophobic spherical nanoparticles in lipid membranes depends on nanoparticle size. Nanoparticles of ∼3 nm sense and induce membrane curvature.
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aggregation

A mathematical model for colloidal aggregation




aggregation

Continuous time disaggregation in hierarchical production planning




aggregation

Aggregational behavior and nest ownership of Crawfodapis luctuosa (Diphaglossinae : Apidae)




aggregation

The Identification of Prehistoric Hunter-Gatherer Aggregation Sites: The Case of Altamira [and Comments and Reply]




aggregation

Diapause aggregations in Stenotarsus sp. (Endomychidae)