scholarly journals Towards Self-Assembled Hybrid Artificial Cells: Novel Bottom-Up Approaches to Functional Synthetic Membranes

2015 ◽  
Vol 21 (36) ◽  
pp. 12564-12570 ◽  
Author(s):  
Roberto J. Brea ◽  
Michael D. Hardy ◽  
Neal K. Devaraj
2021 ◽  
Vol 11 (7) ◽  
pp. 3254
Author(s):  
Marco Pisco ◽  
Francesco Galeotti

The realization of advanced optical fiber probes demands the integration of materials and structures on optical fibers with micro- and nanoscale definition. Although researchers often choose complex nanofabrication tools to implement their designs, the migration from proof-of-principle devices to mass production lab-on-fiber devices requires the development of sustainable and reliable technology for cost-effective production. To make it possible, continuous efforts are devoted to applying bottom-up nanofabrication based on self-assembly to decorate the optical fiber with highly ordered photonic structures. The main challenges still pertain to “order” attainment and the limited number of implementable geometries. In this review, we try to shed light on the importance of self-assembled ordered patterns for lab-on-fiber technology. After a brief presentation of the light manipulation possibilities concerned with ordered structures, and of the new prospects offered by aperiodically ordered structures, we briefly recall how the bottom-up approach can be applied to create ordered patterns on the optical fiber. Then, we present un-attempted methodologies, which can enlarge the set of achievable structures, and can potentially improve the yielding rate in finely ordered self-assembled optical fiber probes by eliminating undesired defects and increasing the order by post-processing treatments. Finally, we discuss the available tools to quantify the degree of order in the obtained photonic structures, by suggesting the use of key performance figures of merit in order to systematically evaluate to what extent the pattern is really “ordered”. We hope such a collection of articles and discussion herein could inspire new directions and hint at best practices to fully exploit the benefits inherent to self-organization phenomena leading to ordered systems.


ACS Nano ◽  
2019 ◽  
Vol 13 (5) ◽  
pp. 5439-5450 ◽  
Author(s):  
Federico Fanalista ◽  
Anthony Birnie ◽  
Renu Maan ◽  
Federica Burla ◽  
Kevin Charles ◽  
...  

2020 ◽  
Vol 8 (31) ◽  
pp. 10837-10843
Author(s):  
Zhichun Shangguan ◽  
Chunyang Yu ◽  
Chen Li ◽  
Xianhui Huang ◽  
Yiyong Mai ◽  
...  

We show the strategy of introducing azobenzene groups into graphene nanoribbons (GNRs), which not only endows GNRs with fast photo-responsiveness but also induces the self-assembly of the GNRs into ultra-long nanowires.


2020 ◽  
Vol 3 (9) ◽  
pp. 5652-5663
Author(s):  
Akhil Patel ◽  
Samer H. Zaky ◽  
Hongshuai Li ◽  
Karen Schoedel ◽  
Alejandro J. Almarza ◽  
...  

2015 ◽  
Vol 54 (34) ◽  
pp. 9844-9848 ◽  
Author(s):  
Guang-Lu Zhang ◽  
Li-Peng Zhou ◽  
Da-Qiang Yuan ◽  
Qing-Fu Sun
Keyword(s):  

2016 ◽  
Vol 44 (3) ◽  
pp. 723-730 ◽  
Author(s):  
Yuval Elani

The quest to construct artificial cells from the bottom-up using simple building blocks has received much attention over recent decades and is one of the grand challenges in synthetic biology. Cell mimics that are encapsulated by lipid membranes are a particularly powerful class of artificial cells due to their biocompatibility and the ability to reconstitute biological machinery within them. One of the key obstacles in the field centres on the following: how can membrane-based artificial cells be generated in a controlled way and in high-throughput? In particular, how can they be constructed to have precisely defined parameters including size, biomolecular composition and spatial organization? Microfluidic generation strategies have proved instrumental in addressing these questions. This article will outline some of the major principles underpinning membrane-based artificial cells and their construction using microfluidics, and will detail some recent landmarks that have been achieved.


Nanophotonics ◽  
2013 ◽  
Vol 2 (3) ◽  
pp. 211-240 ◽  
Author(s):  
Stefan Mühlig ◽  
Alastair Cunningham ◽  
José Dintinger ◽  
Toralf Scharf ◽  
Thomas Bürgi ◽  
...  

AbstractNowadays for the sake of convenience most plasmonic nanostructures are fabricated by top-down nanofabrication technologies. This offers great degrees of freedom to tailor the geometry with unprecedented precision. However, it often causes disadvantages as well. The structures available are usually planar and periodically arranged. Therefore, bulk plasmonic structures are difficult to fabricate and the periodic arrangement causes undesired effects, e.g., strong spatial dispersion is observed in metamaterials. These limitations can be mitigated by relying on bottom-up nanofabrication technologies. There, self-assembly methods and techniques from the field of colloidal nanochemistry are used to build complex functional unit cells in solution from an ensemble of simple building blocks, i.e., in most cases plasmonic nanoparticles. Achievable structures are characterized by a high degree of nominal order only on a short-range scale. The precise spatial arrangement across larger dimensions is not possible in most cases; leading essentially to amorphous structures. Such self-assembled nanostructures require novel analytical means to describe their properties, innovative designs of functional elements that possess a desired near- and far-field response, and entail genuine nanofabrication and characterization techniques. Eventually, novel applications have to be perceived that are adapted to the specifics of the self-assembled nanostructures. This review shall document recent progress in this field of research. Emphasis is put on bottom-up amorphous metamaterials. We document the state-of-the-art but also critically assess the problems that have to be overcome.


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