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2,371 Newest Publications about the topic macromolecules

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Mobility of Hydrous Species in Amorphous Calcium/Magnesium Carbonates

03-Jul-2018 | Anders Jensen; Ignacio Rodriguez-Loureiro; Wouter Y. E. M. Habraken; Peter Fratzl; Luca Bertinetti, Physical Chemistry Chemical Physics, 2018

Amorphous calcium carbonate (ACC) is commonly found in many biological materials. As ACC readily crystallizes into calcite, stabilizers, such as anions, cations or macromolecules often occur to avoid or delay unwanted crystallization. In biogenic ACC, magnesium is commonly present as one of the ...

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NASA Curiosity rover hits organic pay dirt on Mars

08-Jun-2018 | Paul Voosen, Science , 2018

Since NASA's Curiosity rover landed on Mars in 2012, it has sifted samples of soil and ground-up rock for signs of organic molecules—the complex carbon chains that on Earth form the building blocks of life. Past detections have been so faint that they could be just contamination. Now, samples ...

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Conjugated System of Porphyrin-carbon Nano Allotropes: A review

06-Jun-2018 | Supriya S; Vijayendra S. Shetti; Gurumurthy Hegde, New Journal of Chemistry, 2018

Porphyrin macromolecules play critical roles in many natural processes. Studies are going on to mimic their role in natural systems and use them in various applications in artificial systems. When porphyrin moiety is conjugated with carbon nanoallotropes viz., carbon nanomaterials, carbon ...

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Focusing manipulation of microalgae in a microfluidic device using self-produced macromolecules

01-Jun-2018 | Min Jung Kim; Jae Ryoun Youn; Young Seok Song, Lab on a Chip, 2018

Extracellular polymeric substances (EPSs) are self-produced biosynthetic macromolecules that have a three-dimensional architecture in bacterial biofilms and are mainly composed of a mixture of polysaccharides, proteins and nucleic acids. Compared with synthetic polymers, EPSs can have a long ...

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Focusing manipulation of microalgae in a microfluidic device using self-produced macromolecules

01-Jun-2018 | Min Jung Kim; Jae Ryoun Youn; Young Seok Song, Lab on a Chip, 2018

Extracellular polymeric substances (EPSs) are self-produced biosynthetic macromolecules that have a three-dimensional architecture in bacterial biofilms and are mainly composed of a mixture of polysaccharides, proteins and nucleic acids. Compared with synthetic polymers, EPSs can have a long ...

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Manipulating crystallization in lysozyme and supramolecular self-arrangement in solution using ionic liquids

01-Jun-2018 | Zhanzhong Wang; Tiankuo Liu; Chao Lu; Leping Dang, CrystEngComm, 2018

Manipulating crystallization for macromolecule using ionic liquids (ILs) as an additive has received great attention, but how ILs accurately control their formation and crystallization pathway remains unclear. Here, we aim to illuminate the role of ILs on the solution chemistry of macromolecules ...

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Manipulating crystallization in lysozyme and supramolecular self-arrangement in solution using ionic liquids

01-Jun-2018 | Zhanzhong Wang; Tiankuo Liu; Chao Lu; Leping Dang, CrystEngComm, 2018

Manipulating crystallization for macromolecule using ionic liquids (ILs) as an additive has received great attention, but how ILs accurately control their formation and crystallization pathway remains unclear. Here, we aim to illuminate the role of ILs on the solution chemistry of macromolecules ...

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Determining electrospun morphology from the properties of protein–polymer solutions

30-May-2018 | Hao Zhang; Shixia Xi; Yingchun Han; Lunyang Liu; Bo Dong; Zhijie Zhang; Quan Chen; Weihong Min; Qingrong Huang; Yunq ..., Soft Matter, 2018

Integrating natural macromolecules, e.g. proteins, is a progressive trend in the fabrication of biocompatible sub-micrometer fibers with tunable diameters using the electrospinning technique. The correlation between solution properties and electrospun morphology is critical; it is quite clear for ...

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Approach to classify, separate, and enrich objects in groups using ensemble sorting [Chemistry]

29-May-2018 | Rebecca Turk-MacLeod; Alon Henson; Marc Rodriguez-Garcia; Graham M. Gibson; Gerardo Aragon Camarasa; Dario Caramelli ..., Proceedings of the National Academy of Sciences current issue, 2018

The sorting and separation of objects, from single cells, droplets, or macromolecules, to materials, is an important operation central to many scientific investigations. Indeed, it is central to the fabrication of machines and detection technologies; however, most methods focus on separating ...

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Anisotropic convergence of dendritic macromolecules facilitated by a heteroleptic metal–organic polyhedron scaffold

27-May-2018 | Kenichiro Omoto; Nobuhiko Hosono; Mika Gochomori; Ken Albrecht; Kimihisa Yamamoto; Susumu Kitagawa, Chemical Communication, 2018

Anisotropic dendrimers with bipolar shapes were systematically obtained using a heteroleptic metal–organic polyhedron (MOP) as a robust core scaffold. The structure of one of these polyhedral shapes was unambiguously determined by single-crystal X-ray analysis, which revealed that the bulky ...

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