Correlative imaging for polymer science

Wang, Yuyang; Friedrich, Heiner; Voets, Ilja K.; Zijlstra, Peter; Albertazzi, Lorenzo

doi:10.1002/pol.20210013

Cited by 7 publications

(5 citation statements)

References 31 publications

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“…Since it is not determinable from AFM images alone whether these individual nanostructures contain exclusively PA 1 or PA 2, we used a correlative imaging approach, 54 where we first imaged samples on a confocal laser scanning microscope and then transferred them to an atomic force microscope to gather AFM images of the same nanofibers (Figure 2c). As shown in Figures S9 and S10, this procedure allowed us to compare the nanoscale features of the assemblies by AFM with a distribution of fluorescently labeled molecules by CLSM images.…”

Section: Resultsmentioning

confidence: 99%

Self-Sorting vs Coassembly in Peptide Amphiphile Supramolecular Nanostructures

Sangji,

Lee,

Sai

et al. 2024

ACS Nano

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The functionality of supramolecular nanostructures can be expanded if systems containing multiple components are designed to either self-sort or mix into coassemblies. This is critical to gain the ability to craft selfassembling materials that integrate functions, and our understanding of this process is in its early stages. In this work, we have utilized three different peptide amphiphiles with the capacity to form β-sheets within supramolecular nanostructures and found binary systems that self-sort and others that form coassemblies. This was measured using atomic force microscopy to reveal the nanoscale morphology of assemblies and confocal laser scanning microscopy to determine the distribution of fluorescently labeled monomers. We discovered that PA assemblies with opposite supramolecular chirality self-sorted into chemically distinct nanostructures. In contrast, the PA molecules that formed a mixture of right-handed, left-handed, and flat nanostructures on their own were able to coassemble with the other PA molecules. We attribute this phenomenon to the energy barrier associated with changing the handedness of a β-sheet twist in a coassembly of two different PA molecules. This observation could be useful for designing biomolecular nanostructures with dual bioactivity or interpenetrating networks of PA supramolecular assemblies.

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Section: Resultsmentioning

confidence: 99%

Self-Sorting vs Coassembly in Peptide Amphiphile Supramolecular Nanostructures

Sangji,

Lee,

Sai

et al. 2024

ACS Nano

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“…54–56 The new opportunity of using correlative microscopy comes with its own challenges to combine contrasting techniques in terms of sample preparation and setups, but the field is advancing to overcome these limitations. 57…”

Section: Why Super-resolution Microscopy?mentioning

confidence: 99%

Can super-resolution microscopy become a standard characterization technique for materials chemistry?

et al. 2022

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“…A closed graphene liquid cells in combination with fluorescent dyes can be used to detect the release of particular contents, with efficient screening of events, utilizing atomic force microscopy followed by electron microscopy. Such approaches can be used including chemical and physical triggers for the controlled break down of polymeric materials into primary building blocks to facilitate the transition towards a circular economy [51,52]. Qiang et al [53] prepared a novel polymeric precursor with Zr-C-Si-N main chain structure was synthesized through a two-step method which shows an excellent moldable property, oxygen-free compositions and high Zr content of PZCS make it an ideal precursor for the preparation of UHTCs matrixes and fibers.…”

Section: Fabrication and Characterization Of Eco-friendly Microstruct...mentioning

confidence: 99%

Nanopolymer: Overview, Innovation and Applications

Ramteke

2022

PSPRJ

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BackgroundOver the years, continuous innovative advancement has been observed in the field of polymer technology. Lot many researchers have gained a wide attraction in recent years to characterized, designed, and fabricates number of novel polymer, biopolymer and nano biopolymer sophisticated materials mainly due to the benefits related to environmental sustainability which is need of hours in the green planet earth. The current review article highlights recent development and innovations in the area of polymer, biopolymer and nano biopolymer composites, such as synthesis, characterization, and application of such sophisticated novel composites in the polymer and related industries. Living organisms produced nano biopolymers (nanocellulose, nano starch, nano chitin, nano silk, etc.) and microbial nano biopolymers, having received widely scientific and engineering interests in recent decades due to their extensive availability, sustainability as well as biocompatibility and biodegradability. Compare with petroleum-based polymers, biopolymers are sustainable and biodegradable. Chemical, mechanical, and microbial methods are generally used to fabricate nano biopolymers from nature. Nano biopolymers can be processed via solution casting, vacuum filtration and freeze drying [1-4] while most microbial nano biopolymers, polyesters can be processed using polymer processing equipment, like extruder, injection molding, etc. [5]. Nanopolymers have been synthesized using various methods. Eco-friendly, fully biodegradable microstructured polymeric nanoparticles systems are widely in demand, as biomedicine specially in tissue engineering and regenerative medicine [6-9], targeted controlled delivery to particular organs/tissues, carriers of DNA in gene therapy and in their ability to deliver proteins, peptides and genes through an oral route of administration [10,11], biocompatibility with tissue and cells [12,13], to improve bioavailability, and bioactivity of various pharmaceutically active compound used in various ailments [14,15] biodegradable and smart packaging [16][17][18][19], environment protection such as global spill accidents, water quality [20,21] etc. To improve the current growth of the bio-economy and green chemistry, the use of bio-derived polymers and chemicals could also be considered [22].In recent years, the use of polymeric nanofibers has gained great importance in biomedical and biotechnological applications such as tissue engineering, controlled release

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Correlative imaging for polymer science

Cited by 7 publications

References 31 publications

Self-Sorting vs Coassembly in Peptide Amphiphile Supramolecular Nanostructures

Self-Sorting vs Coassembly in Peptide Amphiphile Supramolecular Nanostructures

Can super-resolution microscopy become a standard characterization technique for materials chemistry?

Nanopolymer: Overview, Innovation and Applications

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