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Carnero Canales CS, Marquez Cazorla JI, Marquez Cazorla RM, Roque-Borda CA, Polinário G, Figueroa Banda RA, Sábio RM, Chorilli M, Santos HA, Pavan FR. Breaking barriers: The potential of nanosystems in antituberculosis therapy. Bioact Mater 2024; 39:106-134. [PMID: 38783925 PMCID: PMC11112550 DOI: 10.1016/j.bioactmat.2024.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/17/2024] [Accepted: 05/05/2024] [Indexed: 05/25/2024] Open
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis, continues to pose a significant threat to global health. The resilience of TB is amplified by a myriad of physical, biological, and biopharmaceutical barriers that challenge conventional therapeutic approaches. This review navigates the intricate landscape of TB treatment, from the stealth of latent infections and the strength of granuloma formations to the daunting specters of drug resistance and altered gene expression. Amidst these challenges, traditional therapies often fail, contending with inconsistent bioavailability, prolonged treatment regimens, and socioeconomic burdens. Nanoscale Drug Delivery Systems (NDDSs) emerge as a promising beacon, ready to overcome these barriers, offering better drug targeting and improved patient adherence. Through a critical approach, we evaluate a spectrum of nanosystems and their efficacy against MTB both in vitro and in vivo. This review advocates for the intensification of research in NDDSs, heralding their potential to reshape the contours of global TB treatment strategies.
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Affiliation(s)
| | | | | | - Cesar Augusto Roque-Borda
- Tuberculosis Research Laboratory, School of Pharmaceutical Science, Sao Paulo State University (UNESP), Araraquara, 14800-903, Brazil
| | - Giulia Polinário
- Tuberculosis Research Laboratory, School of Pharmaceutical Science, Sao Paulo State University (UNESP), Araraquara, 14800-903, Brazil
| | | | - Rafael Miguel Sábio
- School of Pharmaceutical Science, Sao Paulo State University (UNESP), Araraquara, 14800-903, Brazil
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen (UMCG), University of Groningen, Groningen, 9713 AV, the Netherlands
| | - Marlus Chorilli
- School of Pharmaceutical Science, Sao Paulo State University (UNESP), Araraquara, 14800-903, Brazil
| | - Hélder A. Santos
- Department of Biomaterials and Biomedical Technology, University Medical Center Groningen (UMCG), University of Groningen, Groningen, 9713 AV, the Netherlands
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland
| | - Fernando Rogério Pavan
- Tuberculosis Research Laboratory, School of Pharmaceutical Science, Sao Paulo State University (UNESP), Araraquara, 14800-903, Brazil
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2
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Arnon ZA, Piperno S, Redeker DC, Randall E, Tkachenko AV, Shpaisman H, Gang O. Acoustically shaped DNA-programmable materials. Nat Commun 2024; 15:6875. [PMID: 39128914 PMCID: PMC11317520 DOI: 10.1038/s41467-024-51049-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 07/26/2024] [Indexed: 08/13/2024] Open
Abstract
Recent advances in DNA nanotechnology allow for the assembly of nanocomponents with nanoscale precision, leading to the emergence of DNA-based material fabrication approaches. Yet, transferring these nano- and micron-scale structural arrangements to the macroscale morphologies remains a challenge, which limits the development of materials and devices based on DNA nanotechnology. Here, we demonstrate a materials fabrication approach that combines DNA-programmable assembly with actively driven processes controlled by acoustic fields. This combination provides a prescribed nanoscale order, as dictated by equilibrium assembly through DNA-encoded interactions, and field-shaped macroscale morphology, as regulated by out-of-equilibrium materials formation through specific acoustic stimulation. Using optical and electron microscopy imaging and x-ray scattering, we further revealed the nucleation processes, domain fusion, and crystal growth under different acoustically stimulated conditions. The developed approach provides a pathway for the fabrication of complexly shaped macroscale morphologies for DNA-programmable nanomaterials by controlling spatiotemporal characteristics of the acoustic fields.
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Affiliation(s)
- Z A Arnon
- Department of Chemical Engineering, Columbia University, New York, NY, USA
| | - S Piperno
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan, Israel
| | - D C Redeker
- Department of Chemical Engineering, Columbia University, New York, NY, USA
| | - E Randall
- Department of Chemical Engineering, Columbia University, New York, NY, USA
| | - A V Tkachenko
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, USA
| | - H Shpaisman
- Department of Chemistry and Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan, Israel
| | - O Gang
- Department of Chemical Engineering, Columbia University, New York, NY, USA.
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, USA.
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA.
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3
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Cho TH, Farjam N, Barton K, Dasgupta NP. Subtractive Patterning of Nanoscale Thin Films Using Acid-Based Electrohydrodynamic-Jet Printing. SMALL METHODS 2024; 8:e2301407. [PMID: 38161264 DOI: 10.1002/smtd.202301407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/16/2023] [Indexed: 01/03/2024]
Abstract
As an alternative to traditional photolithography, printing processes are widely explored for the patterning of customizable devices. However, to date, the majority of high-resolution printing processes for functional nanomaterials are additive in nature. To complement additive printing, there is a need for subtractive processes, where the printed ink results in material removal, rather than addition. In this study, a new subtractive patterning approach that uses electrohydrodynamic-jet (e-jet) printing of acid-based inks to etch nanoscale zinc oxide (ZnO) thin films deposited using atomic layer deposition (ALD) is introduced. By tuning the printing parameters, the depth and linewidth of the subtracted features can be tuned, with a minimum linewidth of 11 µm and a tunable channel depth with ≈5 nm resolution. Furthermore, by tuning the ink composition, the volatility and viscosity of the ink can be adjusted, resulting in variable spreading and dissolution dynamics at the solution/film interface. In the future, acid-based subtractive patterning using e-jet printing can be used for rapid prototyping or customizable manufacturing of functional devices on a range of substrates with nanoscale precision.
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Affiliation(s)
- Tae H Cho
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Nazanin Farjam
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Kira Barton
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA
- Department of Robotics, University of Michigan, Ann Arbor, Michigan, 48109, USA
| | - Neil P Dasgupta
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA
- Department of Materials Science & Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA
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4
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O’Dea C, Isokuortti J, Comer EE, Roberts ST, Page ZA. Triplet Upconversion under Ambient Conditions Enables Digital Light Processing 3D Printing. ACS CENTRAL SCIENCE 2024; 10:272-282. [PMID: 38435512 PMCID: PMC10906251 DOI: 10.1021/acscentsci.3c01263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 03/05/2024]
Abstract
The rapid photochemical conversion of materials from liquid to solid (i.e., curing) has enabled the fabrication of modern plastics used in microelectronics, dentistry, and medicine. However, industrialized photocurables remain restricted to unimolecular bond homolysis reactions (Type I photoinitiations) that are driven by high-energy UV light. This narrow mechanistic scope both challenges the production of high-resolution objects and restricts the materials that can be produced using emergent manufacturing technologies (e.g., 3D printing). Herein we develop a photosystem based on triplet-triplet annihilation upconversion (TTA-UC) that efficiently drives a Type I photocuring process using green light at low power density (<10 mW/cm2) and in the presence of ambient oxygen. This system also exhibits a superlinear dependence of its cure depth on the light exposure intensity, which enhances spatial resolution. This enables for the first-time integration of TTA-UC in an inexpensive, rapid, and high-resolution manufacturing process, digital light processing (DLP) 3D printing. Moreover, relative to traditional Type I and Type II (photoredox) strategies, the present TTA-UC photoinitiation method results in improved cure depth confinement and resin shelf stability. This report provides a user-friendly avenue to utilize TTA-UC in ambient photochemical processes and paves the way toward fabrication of next-generation plastics with improved geometric precision and functionality.
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Affiliation(s)
- Connor
J. O’Dea
- Department of Chemistry, The
University of Texas at Austin, Austin, Texas 78712 ,United States
| | - Jussi Isokuortti
- Department of Chemistry, The
University of Texas at Austin, Austin, Texas 78712 ,United States
| | - Emma E. Comer
- Department of Chemistry, The
University of Texas at Austin, Austin, Texas 78712 ,United States
| | - Sean T. Roberts
- Department of Chemistry, The
University of Texas at Austin, Austin, Texas 78712 ,United States
| | - Zachariah A. Page
- Department of Chemistry, The
University of Texas at Austin, Austin, Texas 78712 ,United States
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5
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Michelson A, Subramanian A, Kisslinger K, Tiwale N, Xiang S, Shen E, Kahn JS, Nykypanchuk D, Yan H, Nam CY, Gang O. Three-dimensional nanoscale metal, metal oxide, and semiconductor frameworks through DNA-programmable assembly and templating. SCIENCE ADVANCES 2024; 10:eadl0604. [PMID: 38198553 PMCID: PMC10780874 DOI: 10.1126/sciadv.adl0604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/05/2023] [Indexed: 01/12/2024]
Abstract
Controlling the three-dimensional (3D) nanoarchitecture of inorganic materials is imperative for enabling their novel mechanical, optical, and electronic properties. Here, by exploiting DNA-programmable assembly, we establish a general approach for realizing designed 3D ordered inorganic frameworks. Through inorganic templating of DNA frameworks by liquid- and vapor-phase infiltrations, we demonstrate successful nanofabrication of diverse classes of inorganic frameworks from metal, metal oxide and semiconductor materials, as well as their combinations, including zinc, aluminum, copper, molybdenum, tungsten, indium, tin, and platinum, and composites such as aluminum-doped zinc oxide, indium tin oxide, and platinum/aluminum-doped zinc oxide. The open 3D frameworks have features on the order of nanometers with architecture prescribed by the DNA frames and self-assembled lattice. Structural and spectroscopic studies reveal the composition and organization of diverse inorganic frameworks, as well as the optoelectronic properties of selected materials. The work paves the road toward establishing a 3D nanoscale lithography.
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Affiliation(s)
- Aaron Michelson
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
| | - Ashwanth Subramanian
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA
| | - Kim Kisslinger
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Nikhil Tiwale
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Shuting Xiang
- Department of Chemical Engineering, Columbia University, 817 SW Mudd, New York, NY 10027, USA
| | - Eric Shen
- Department of Chemical Engineering, Columbia University, 817 SW Mudd, New York, NY 10027, USA
| | - Jason S. Kahn
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Dmytro Nykypanchuk
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Hanfei Yan
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Chang-Yong Nam
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA
| | - Oleg Gang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
- Department of Chemical Engineering, Columbia University, 817 SW Mudd, New York, NY 10027, USA
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6
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Park H, Choi HY, Chae H, Noe Oo MM, Kang DJ. Electrohydrodynamic Nanopatterning: A Novel Solvent-Assisted Technique for Unconventional Substrates. NANO LETTERS 2023; 23:11949-11957. [PMID: 38079430 DOI: 10.1021/acs.nanolett.3c04177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Electrohydrodynamic (EHD)-driven patterning is a pioneering lithographic technique capable of replicating and modifying micro/nanostructures efficiently. However, this process is currently restricted to conventional substrates, as it necessitates a uniform and robust electric field over a large area. Consequently, the use of nontraditional substrates, such as those that are flexible, nonflat, or have high insulation, has been notably limited. In our study, we extend the applicability of EHD-driven patterning by introducing a solvent-assisted capillary peel-and-transfer method that allows the successful removal of diverse EHD-induced structures from their original substrates. Compared with the traditional route, our process boasts a success rate close to 100%. The detached structures can then be efficiently transferred to nonconventional substrates, overcoming the limitations of the traditional EHD process. Our method exhibits significant versatility, as evidenced by successful transfer of structures with engineered wettability and patterned structures composed of metals and metal oxides onto nonconventional substrates.
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Affiliation(s)
- Hyunje Park
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
- Research Institute of Basic Sciences, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Ha Young Choi
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Heejoon Chae
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - May Myat Noe Oo
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Dae Joon Kang
- Department of Physics, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
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7
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Kiani MT, Sam QP, Jung YS, Han HJ, Cha JJ. Wafer-Scale Fabrication of 2D Nanostructures via Thermomechanical Nanomolding. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2307289. [PMID: 38057127 DOI: 10.1002/smll.202307289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/01/2023] [Indexed: 12/08/2023]
Abstract
With shrinking dimensions in integrated circuits, sensors, and functional devices, there is a pressing need to develop nanofabrication techniques with simultaneous control of morphology, microstructure, and material composition over wafer length scales. Current techniques are largely unable to meet all these conditions, suffering from poor control of morphology and defect structure or requiring extensive optimization or post-processing to achieve desired nanostructures. Recently, thermomechanical nanomolding (TMNM) has been shown to yield single-crystalline, high aspect ratio nanowires of metals, alloys, and intermetallics over wafer-scale distances. Here, TMNM is extended for wafer-scale fabrication of 2D nanostructures. Using In, Al, and Cu, nanomold nanoribbons with widths < 50 nm, depths ≈0.5-1 µm and lengths ≈7 mm into Si trenches at conditions compatible is successfully with back end of line processing . Through SEM cross-section imaging and 4D-STEM grain orientation maps, it is shown that the grain size of the bulk feedstock is transferred to the nanomolded structures up to and including single crystal Cu. Based on the retained microstructures of molded 2D Cu, the deformation mechanism during molding for 2D TMNM is discussed.
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Affiliation(s)
- Mehrdad T Kiani
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Quynh P Sam
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea
| | - Hyeuk Jin Han
- Department of Environment and Energy Engineering, Sungshin Women's University, Seoul, 02844, South Korea
| | - Judy J Cha
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
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8
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Jia J, Metzkow N, Park SM, Wu YL, Sample AD, Diloknawarit B, Jung I, Odom TW. Spike Growth on Patterned Gold Nanoparticle Scaffolds. NANO LETTERS 2023. [PMID: 38048438 DOI: 10.1021/acs.nanolett.3c03778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
This work reports a scaffold-templated, bottom-up synthesis of 3D anisotropic nanofeatures on periodic arrays of gold nanoparticles (AuNPs). Our method relies on substrate-bound AuNPs as large seeds with hemispherical shapes and smooth surfaces after the thermal annealing of as-fabricated particles. Spiky features were grown by immersing the patterned AuNPs into a growth solution consisting of a gold salt and Good's buffer; the number and length of spikes could be tuned by changing the solution pH and buffer concentration. Intermediate structures that informed the growth mechanism were characterized as a function of time by correlating the optical properties and spike features. Large-area (cm2) spiky AuNP arrays exhibited surface-enhanced Raman spectroscopy enhancement that was associated with increased numbers of high-aspect-ratio spikes formed on the AuNP seeds.
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Affiliation(s)
- Jin Jia
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Nadia Metzkow
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Sang-Min Park
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Yuhao Leo Wu
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Alexander D Sample
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Bundit Diloknawarit
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Insub Jung
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Teri W Odom
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
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9
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Baek S, Jeong S, Ban HW, Ryu J, Kim Y, Gu DH, Son C, Yoon TS, Lee J, Son JS. Nanoscale Vertical Resolution in Optical Printing of Inorganic Nanoparticles. ACS NANO 2023. [PMID: 38044586 DOI: 10.1021/acsnano.3c09787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Direct optical printing of functional inorganics shows tremendous potential as it enables the creation of intricate two-dimensional (2D) patterns and affordable design and production of various devices. Although there have been recent advancements in printing processes using short-wavelength light or pulsed lasers, the precise control of the vertical thickness in printed 3D structures has received little attention. This control is vital to the diverse functionalities of inorganic thin films and their devices, as they rely heavily on their thicknesses. This lack of research is attributed to the technical intricacy and complexity involved in the lithographic processes. Herein, we present a generalized optical 3D printing process for inorganic nanoparticles using maskless digital light processing. We develop a range of photocurable inorganic nanoparticle inks encompassing metals, semiconductors, and oxides, combined with photolinkable ligands and photoacid generators, enabling the direct solidification of nanoparticles in the ink medium. Our process creates complex and large-area patterns with a vertical resolution of ∼50 nm, producing 50-nm-thick 2D films and several micrometer-thick 3D architectures with no layer height difference via layer-by-layer deposition. Through fabrication and operation of multilayered switching devices with Au electrodes and Ag-organic resistive layers, the feasibility of our process for cost-effective manufacturing of multilayered devices is demonstrated.
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Affiliation(s)
- Seongheon Baek
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Sanggyun Jeong
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Hyeong Woo Ban
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jiyeon Ryu
- Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Yoonkyum Kim
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Da Hwi Gu
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Changil Son
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Tae-Sik Yoon
- Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Jiseok Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jae Sung Son
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Gyeongsangbuk-do, 37673, Republic of Korea
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10
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Mondal TK, West JH, Williams SJ. An electrospun nanofiber mat as an electrode for AC-dielectrophoretic trapping of nanoparticles. NANOSCALE 2023; 15:18241-18249. [PMID: 37947459 DOI: 10.1039/d3nr04496c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
In order to trap nanoparticles with dielectrophoresis, high electric field gradients are needed. Here we created large area (>mm2) conductive carbon nanofiber mats to trap nanoparticles with dielectrophoresis. The electrospun fiber mats had an average diameter of 267 ± 94 nm and a conductivity of 2.55 S cm-1. Relative to cleanroom procedures, this procedure is less expensive in creating bulk conductive nanoscale features. The electrospun fiber mat was used as one electrode, with an indium-tin-oxide glass slide serving as the other (separated approximately 150 μm). Numerical models showed that conductive nanoscale fibers can generate significant field gradients sufficient to overcome Brownian transport of nanoparticles. Our experiments trapped 20 nm fluorescent polystyrene beads at 7 Vrms and 1 kHz. Trapping is further enhanced through simultaneous electrohydrodynamic motion. Overall, this straightforward electrospun fiber mat can serve as a foundation for future use in microscale electrokinetic devices.
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Affiliation(s)
- Tonoy K Mondal
- Department of Mechanical Engineering, University of Louisville, Louisville, KY-40292, USA.
| | - J Hunter West
- Department of Mechanical Engineering, University of Louisville, Louisville, KY-40292, USA.
| | - Stuart J Williams
- Department of Mechanical Engineering, University of Louisville, Louisville, KY-40292, USA.
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11
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Tobiason M, Yurke B, Hughes WL. Generation of DNA oligomers with similar chemical kinetics via in-silico optimization. Commun Chem 2023; 6:226. [PMID: 37853171 PMCID: PMC10584830 DOI: 10.1038/s42004-023-01026-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 10/10/2023] [Indexed: 10/20/2023] Open
Abstract
Networks of interacting DNA oligomers are useful for applications such as biomarker detection, targeted drug delivery, information storage, and photonic information processing. However, differences in the chemical kinetics of hybridization reactions, referred to as kinetic dispersion, can be problematic for some applications. Here, it is found that limiting unnecessary stretches of Watson-Crick base pairing, referred to as unnecessary duplexes, can yield exceptionally low kinetic dispersions. Hybridization kinetics can be affected by unnecessary intra-oligomer duplexes containing only 2 base-pairs, and such duplexes explain up to 94% of previously reported kinetic dispersion. As a general design rule, it is recommended that unnecessary intra-oligomer duplexes larger than 2 base-pairs and unnecessary inter-oligomer duplexes larger than 7 base-pairs be avoided. Unnecessary duplexes typically scale exponentially with network size, and nearly all networks contain unnecessary duplexes substantial enough to affect hybridization kinetics. A new method for generating networks which utilizes in-silico optimization to mitigate unnecessary duplexes is proposed and demonstrated to reduce in-vitro kinetic dispersions as much as 96%. The limitations of the new design rule and generation method are evaluated in-silico by creating new oligomers for several designs, including three previously programmed reactions and one previously engineered structure.
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Affiliation(s)
- Michael Tobiason
- Department of Computer Science, Boise State University, Boise, ID, USA.
- Micron School of Materials Science & Engineering, Boise State University, Boise, ID, USA.
| | - Bernard Yurke
- Micron School of Materials Science & Engineering, Boise State University, Boise, ID, USA
- Department of Electrical & Computer Engineering, Boise State University, Boise, ID, USA
| | - William L Hughes
- School of Engineering, University of British Columbia Okanagan Campus, Kelowna, BC, Canada.
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12
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Satyarthy S, Hasan Ul Iqbal M, Abida F, Nahar R, Hauser AJ, Cheng MMC, Ghosh A. Stearic Acid as an Atomic Layer Deposition Inhibitor: Spectroscopic Insights from AFM-IR. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2713. [PMID: 37836354 PMCID: PMC10574727 DOI: 10.3390/nano13192713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/19/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023]
Abstract
Modern-day chip manufacturing requires precision in placing chip materials on complex and patterned structures. Area-selective atomic layer deposition (AS-ALD) is a self-aligned manufacturing technique with high precision and control, which offers cost effectiveness compared to the traditional patterning techniques. Self-assembled monolayers (SAMs) have been explored as an avenue for realizing AS-ALD, wherein surface-active sites are modified in a specific pattern via SAMs that are inert to metal deposition, enabling ALD nucleation on the substrate selectively. However, key limitations have limited the potential of AS-ALD as a patterning method. The choice of molecules for ALD blocking SAMs is sparse; furthermore, deficiency in the proper understanding of the SAM chemistry and its changes upon metal layer deposition further adds to the challenges. In this work, we have addressed the above challenges by using nanoscale infrared spectroscopy to investigate the potential of stearic acid (SA) as an ALD inhibiting SAM. We show that SA monolayers on Co and Cu substrates can inhibit ZnO ALD growth on par with other commonly used SAMs, which demonstrates its viability towards AS-ALD. We complement these measurements with AFM-IR, which is a surface-sensitive spatially resolved technique, to obtain spectral insights into the ALD-treated SAMs. The significant insight obtained from AFM-IR is that SA SAMs do not desorb or degrade with ALD, but rather undergo a change in substrate coordination modes, which can affect ALD growth on substrates.
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Affiliation(s)
- Saumya Satyarthy
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA; (S.S.); (M.H.U.I.)
| | - Md Hasan Ul Iqbal
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA; (S.S.); (M.H.U.I.)
| | - Fairoz Abida
- Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA; (F.A.); (M.M.-C.C.)
| | - Ridwan Nahar
- Department of Physics and Astronomy, The University of Alabama, Tuscaloosa, AL 35487, USA; (R.N.); (A.J.H.)
| | - Adam J. Hauser
- Department of Physics and Astronomy, The University of Alabama, Tuscaloosa, AL 35487, USA; (R.N.); (A.J.H.)
| | - Mark Ming-Cheng Cheng
- Department of Electrical and Computer Engineering, The University of Alabama, Tuscaloosa, AL 35487, USA; (F.A.); (M.M.-C.C.)
| | - Ayanjeet Ghosh
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA; (S.S.); (M.H.U.I.)
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13
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Park TW, Kang YL, Kang EB, Jung H, Lee S, Hwang G, Lee JW, Choi S, Nahm S, Kwon S, kim KH, Park WI. Direct Printing of Ultrathin Block Copolymer Film with Nano-in-Micro Pattern Structures. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303412. [PMID: 37607117 PMCID: PMC10582423 DOI: 10.1002/advs.202303412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/23/2023] [Indexed: 08/24/2023]
Abstract
Nanotransfer printing (nTP) is one of the most promising nanopatterning methods given that it can be used to produce nano-to-micro patterns effectively with functionalities for electronic device applications. However, the nTP process is hindered by several critical obstacles, such as sub-20 nm mold technology, reliable large-area replication, and uniform transfer-printing of functional materials. Here, for the first time, a dual nanopatterning process is demonstrated that creates periodic sub-20 nm structures on the eight-inch wafer by the transfer-printing of patterned ultra-thin (<50 nm) block copolymer (BCP) film onto desired substrates. This study shows how to transfer self-assembled BCP patterns from the Si mold onto rigid and/or flexible substrates through a nanopatterning method of thermally assisted nTP (T-nTP) and directed self-assembly (DSA) of Si-containing BCPs. In particular, the successful microscale patternization of well-ordered sub-20 nm SiOx patterns is systematically presented by controlling the self-assembly conditions of BCP and printing temperature. In addition, various complex pattern geometries of nano-in-micro structures are displayed over a large patterning area by T-nTP, such as angular line, wave line, ring, dot-in-hole, and dot-in-honeycomb structures. This advanced BCP-replicated nanopatterning technology is expected to be widely applicable to nanofabrication of nano-to-micro electronic devices with complex circuits.
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Affiliation(s)
- Tae Wan Park
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
- Department of Materials Science and EngineeringPukyong National University (PKNU)45 Yongso‐ro, Nam‐guBusan48513Republic of Korea
| | - Young Lim Kang
- Department of Materials Science and EngineeringPukyong National University (PKNU)45 Yongso‐ro, Nam‐guBusan48513Republic of Korea
| | - Eun Bin Kang
- Department of Materials Science and EngineeringPukyong National University (PKNU)45 Yongso‐ro, Nam‐guBusan48513Republic of Korea
| | - Hyunsung Jung
- Nano Convergence Materials CenterKorea Institute of Ceramic Engineering & Technology (KICET)Jinju52851Republic of Korea
| | - Seoung‐Ki Lee
- School of Materials Science and EngineeringPusan National University (PNU)Busan46241Republic of Korea
| | - Geon‐Tae Hwang
- Department of Materials Science and EngineeringPukyong National University (PKNU)45 Yongso‐ro, Nam‐guBusan48513Republic of Korea
| | - Jung Woo Lee
- School of Materials Science and EngineeringPusan National University (PNU)Busan46241Republic of Korea
| | - Si‐Young Choi
- Department of Materials Science and EngineeringPohang University of Science and Technology (POSTECH)Pohang37673Republic of Korea
| | - Sahn Nahm
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Se‐Hun Kwon
- School of Materials Science and EngineeringPusan National University (PNU)Busan46241Republic of Korea
| | - Kwang Ho kim
- School of Materials Science and EngineeringPusan National University (PNU)Busan46241Republic of Korea
- Global Frontier R&D Center for Hybrid Interface Materials (HIM)Pusan National UniversityBusan46241Republic of Korea
| | - Woon Ik Park
- Department of Materials Science and EngineeringPukyong National University (PKNU)45 Yongso‐ro, Nam‐guBusan48513Republic of Korea
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14
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Yu X, Andreo J, Walden M, Del Campo JF, Basabe-Desmonts L, Benito-Lopez F, Burg TP, Wuttke S. The Importance of Dean Flow in Microfluidic Nanoparticle Synthesis: A ZIF-8 Case Study. SMALL METHODS 2023:e2300603. [PMID: 37772633 DOI: 10.1002/smtd.202300603] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
The Dean Flow, a physics phenomenon that accounts for the impact of channel curvature on fluid dynamics, has great potential to be used in microfluidic synthesis of nanoparticles. This study explores the impact of the Dean Flow on the synthesis of ZIF-8 particles. Several variables that influence the Dean Equation (the mathematical expression of Dean Flow) are tested to validate the applicability of this expression in microfluidic synthesis, including the flow rate, radius of curvature, channel cross sectional area, and reagent concentration. It is demonstrated that the current standard of reporting, providing only the flow rate and crucially not the radius of curvature, is an incomplete description that will invariably lead to irreproducible syntheses across different laboratories. An alternative standard of reporting is presented and it is demonstrated how the sleek and simple math of the Dean Equation can be used to precisely tune the final dimensions of high quality, monodisperse ZIF-8 nanoparticles between 40 and 700 nm.
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Affiliation(s)
- Xiangjiang Yu
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Vizcaya, 48940, Spain
| | - Jacopo Andreo
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Vizcaya, 48940, Spain
| | - Madeline Walden
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Vizcaya, 48940, Spain
| | - Javier F Del Campo
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Vizcaya, 48940, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48009, Spain
| | - Lourdes Basabe-Desmonts
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Vizcaya, 48940, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48009, Spain
- Microfluidics Cluster UPV/EHU, BIOMICs Microfluidics Group, Lascaray Research Center, University of the Basque Country UPV/EHU, Vitoria-Gasteiz, 01006, Spain
| | - Fernando Benito-Lopez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Vizcaya, 48940, Spain
- Microfluidics Cluster UPV/EHU, Analytical Microsystems & Materials for Lab-on-a-Chip (AMMa-LOAC) Group, Analytical Chemistry Department, University of the Basque Country UPV/EHU, Leioa, 48940, Spain
| | - Thomas P Burg
- Department of Electrical Engineering and Information Technology, The Darmstadt University of Technology, 64283, Darmstadt, Germany
| | - Stefan Wuttke
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, Leioa, Vizcaya, 48940, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, 48009, Spain
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15
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García-Loureiro A, Seoane N, Fernández JG, Comesaña E, Pichel JC. A machine learning approach to model the impact of line edge roughness on gate-all-around nanowire FETs while reducing the carbon footprint. PLoS One 2023; 18:e0288964. [PMID: 37486944 PMCID: PMC10365313 DOI: 10.1371/journal.pone.0288964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 07/07/2023] [Indexed: 07/26/2023] Open
Abstract
The performance and reliability of semiconductor devices scaled down to the sub-nanometer regime are being seriously affected by process-induced variability. To properly assess the impact of the different sources of fluctuations, such as line edge roughness (LER), statistical analyses involving large samples of device configurations are needed. The computational cost of such studies can be very high if 3D advanced simulation tools (TCAD) that include quantum effects are used. In this work, we present a machine learning approach to model the impact of LER on two gate-all-around nanowire FETs that is able to dramatically decrease the computational effort, thus reducing the carbon footprint of the study, while obtaining great accuracy. Finally, we demonstrate that transfer learning techniques can decrease the computing cost even further, being the carbon footprint of the study just 0.18 g of CO2 (whereas a single device TCAD study can produce up to 2.6 kg of CO2), while obtaining coefficient of determination values larger than 0.985 when using only a 10% of the input samples.
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Affiliation(s)
| | - Natalia Seoane
- CITIUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Julián G Fernández
- CITIUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Enrique Comesaña
- Departamento de Electrónica e Computación, Universidade de Santiago de Compostela, Lugo, Spain
| | - Juan C Pichel
- CITIUS, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
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16
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Schlichter L, Bosse F, Tyler BJ, Arlinghaus HF, Ravoo BJ. Patterning of Hydrophilic and Hydrophobic Gold and Magnetite Nanoparticles by Dip Pen Nanolithography. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208069. [PMID: 36828795 DOI: 10.1002/smll.202208069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/01/2023] [Indexed: 05/04/2023]
Abstract
Nanoparticles offer unique physical and chemical properties. Dip pen nanolithography of nanoparticles enables versatile patterning and nanofabrication with potential application in electronics and sensing, but is not well studied yet. Herein, the patterned deposition of various nanoparticles onto unmodified silicon substrates is presented. It is shown that aqueous solutions of hydrophilic citrate and cyclodextrin functionalized gold nanoparticles as well as poly(acrylic) acid decorated magnetite nanoparticles are feasible for writing nanostructures. Both smaller and larger nanoparticles can be patterned. Hydrophobic oleylamine or n-dodecylamine capped gold nanoparticles and oleic acid decorated magnetite nanoparticles are deposited from toluene. Tip loading is carried out by dip-coating, and writing succeeds fast within 0.1 s. Also, coating with longer tip dwell times, at different relative humidity and varying frequency are studied for deposition of nanoparticle clusters. The resulting feature size is between 300 and 1780 nm as determined by scanning electron microscopy. Atomic force microscopy confirms that the heights of the deposited structures correspond to a single or double layer of nanoparticles. Higher writing speeds lead to smaller line thicknesses, offering possibilities to more complex structures. Dip pen nanolithography can hence be used to pattern nanoparticles on silicon substrates independent of the surface chemistry.
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Affiliation(s)
- Lisa Schlichter
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms- Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
| | - Florian Bosse
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms- Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
| | - Bonnie J Tyler
- Center for Soft Nanoscience and Physics Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus-Str. 10, 48149, Münster, Germany
| | - Heinrich F Arlinghaus
- Center for Soft Nanoscience and Physics Institute, Westfälische Wilhelms-Universität Münster, Busso-Peus-Str. 10, 48149, Münster, Germany
| | - Bart Jan Ravoo
- Center for Soft Nanoscience and Organic Chemistry Institute, Westfälische Wilhelms- Universität Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
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17
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van Es M, Tamer S, Bloem E, Fillinger L, van Zeijl E, Maturová K, van der Donck J, Willekers R, Chuang A, Maas D. Chemical metrology on latent resist images. MICRO AND NANO ENGINEERING 2023. [DOI: 10.1016/j.mne.2023.100181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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18
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Ding SP, Zhang ZK, Ye Z, Xia DL, Xu JT. Electrostatic crosslinking-enabled highly asymmetric lamellar nanostructures of polyzwitterionic block copolymers for lithography. NANOSCALE 2023; 15:4553-4560. [PMID: 36757829 DOI: 10.1039/d3nr00073g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
For the bulk self-assembly of traditional diblock copolymers (di-BCPs), lamellar structures only occur when two constituents have similar volume fractions (f) and two alternating layers tend to have similar thicknesses. Highly asymmetric lamellar (A-LAM) structures, in which the thickness of one layer is several times higher than the other, are hardly formed in di-BCPs, while they have potential applications in nanolithography. In this work, A-LAM structures with different dimensions were constructed using a type of simple linear di-BCP, polystyrene-b-poly(4-vinylpyridine)propane-1-sulfonate (PS-b-PVPS) with the polyzwitterionic block PVPS in minority. The origin of the A-LAM structure was ascribed to the electrostatic crosslinking and confirmed by doping PS-b-PVPS block copolymers (BCPs) with N-butyl pyridinium methane sulfonate (BPMS). The morphology of compositionally asymmetric PS-b-PVPS BCPs changed from A-LAM to cylindrical structures upon salt-doping, i.e. the phase behavior of common BCPs was recovered. In addition, the morphologies of PS-b-PVPS BCPs with similar molecular weights but varied compositions were also studied, and only two kinds of structures (lamellar or ill-defined spherical structure) were observed when the volume fraction of PVPS (fPVPS) was less than 0.5, and the composition range for the formation of the lamellar structure was found to be fPVPS ≥ 0.188.
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Affiliation(s)
- Shi-Peng Ding
- State Key Laboratory of Motor Vehicle Biofuel Technology, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Ze-Kun Zhang
- State Key Laboratory of Motor Vehicle Biofuel Technology, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Ze Ye
- State Key Laboratory of Motor Vehicle Biofuel Technology, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Ding-Li Xia
- State Key Laboratory of Motor Vehicle Biofuel Technology, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Jun-Ting Xu
- State Key Laboratory of Motor Vehicle Biofuel Technology, International Research Center for X Polymers, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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19
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Wählisch A, Unterumsberger R, Hönicke P, Lubeck J, Kayser Y, Weser J, Dai G, Hahm K, Weimann T, Seim C, Rehbein S, Beckhoff B. Quantitative Element-Sensitive Analysis of Individual Nanoobjects. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2204943. [PMID: 36521935 DOI: 10.1002/smll.202204943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 11/22/2022] [Indexed: 06/17/2023]
Abstract
A reliable and quantitative material analysis is crucial for assessing new technological processes, especially to facilitate a quantitative understanding of advanced material properties at the nanoscale. To this end, X-ray fluorescence microscopy techniques can offer an element-sensitive and non-destructive tool for the investigation of a wide range of nanotechnological materials. Since X-ray radiation provides information depths of up to the microscale, even stratified or buried arrangements are easily accessible without invasive sample preparation. However, in terms of the quantification capabilities, these approaches are usually restricted to a qualitative or semi-quantitative analysis at the nanoscale. Relying on comparable reference nanomaterials is often not straightforward or impossible because the development of innovative nanomaterials has proven to be more fast-paced than any development process for appropriate reference materials. The present work corroborates that a traceable quantification of individual nanoobjects can be realized by means of an X-ray fluorescence microscope when utilizing rather conventional but well-calibrated instrumentation instead of reference materials. As a proof of concept, the total number of atoms forming a germanium nanoobject is quantified using soft X-ray radiation. Furthermore, complementary dimensional parameters of such objects are reconstructed.
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Affiliation(s)
- André Wählisch
- Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587, Berlin, Germany
| | | | - Philipp Hönicke
- Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587, Berlin, Germany
| | - Janin Lubeck
- Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587, Berlin, Germany
| | - Yves Kayser
- Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587, Berlin, Germany
| | - Jan Weser
- Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587, Berlin, Germany
| | - Gaoliang Dai
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116, Braunschweig, Germany
| | - Kai Hahm
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116, Braunschweig, Germany
| | - Thomas Weimann
- Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116, Braunschweig, Germany
| | - Christian Seim
- Technische Universität Berlin, Germany, Hardenbergstr. 36, 10623, Berlin, Germany
| | - Stefan Rehbein
- Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
| | - Burkhard Beckhoff
- Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587, Berlin, Germany
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20
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Ranasinghe DR, Doerk G, Aryal BR, Pang C, Davis RC, Harb JN, Woolley AT. Block copolymer self-assembly to pattern gold nanodots for site-specific placement of DNA origami and attachment of nanomaterials. NANOSCALE 2023; 15:2188-2196. [PMID: 36633155 DOI: 10.1039/d2nr05045e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Directed placement of DNA origami could play a key role in future integrated nanoelectronic devices. Here we demonstrated the site-selective attachment of DNA origami on gold dots formed using a pattern transfer method through block copolymer self-assembly. First, a random copolymer brush layer is grafted on the Si surface and then poly (styrene-b-methylmethacrylate) block copolymer is spin-coated to give a hexagonal nanoarray after annealing. UV irradiation followed by acetic acid etching is used to remove the PMMA, creating cylindrical holes and then oxygen plasma etching removes the random copolymer layer inside those holes. Next, metal evaporation, followed by lift-off creates a gold dot array. We evaluated different ligand functionalization of Au dots, as well as DNA hybridization to attach DNA origami to the nanodots. DNA-coated Au nanorods are assembled on the DNA origami as a step towards creating nanowires and to facilitate electron microscopy characterization of the attachment of DNA origami on these Au nanodots. The DNA hybridization approach showed better DNA attachment to Au nanodots than localization by electrostatic interaction. This work contributes to the understanding of DNA-templated assembly, nanomaterials, and block copolymer nanolithography. Furthermore, the work shows potential for creating DNA-templated nanodevices and their placement in ordered arrays in future nanoelectronics.
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Affiliation(s)
| | - Gregory Doerk
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, USA
| | - Basu R Aryal
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA.
| | - Chao Pang
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA.
| | - Robert C Davis
- Department of Physics and Astronomy, Brigham Young University, Provo, UT, USA
| | - John N Harb
- Department of Chemical Engineering, Brigham Young University, Provo, UT, USA
| | - Adam T Woolley
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT, USA.
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21
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Chai Z, Childress A, Busnaina AA. Directed Assembly of Nanomaterials for Making Nanoscale Devices and Structures: Mechanisms and Applications. ACS NANO 2022; 16:17641-17686. [PMID: 36269234 PMCID: PMC9706815 DOI: 10.1021/acsnano.2c07910] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/06/2022] [Indexed: 05/19/2023]
Abstract
Nanofabrication has been utilized to manufacture one-, two-, and three-dimensional functional nanostructures for applications such as electronics, sensors, and photonic devices. Although conventional silicon-based nanofabrication (top-down approach) has developed into a technique with extremely high precision and integration density, nanofabrication based on directed assembly (bottom-up approach) is attracting more interest recently owing to its low cost and the advantages of additive manufacturing. Directed assembly is a process that utilizes external fields to directly interact with nanoelements (nanoparticles, 2D nanomaterials, nanotubes, nanowires, etc.) and drive the nanoelements to site-selectively assemble in patterned areas on substrates to form functional structures. Directed assembly processes can be divided into four different categories depending on the external fields: electric field-directed assembly, fluidic flow-directed assembly, magnetic field-directed assembly, and optical field-directed assembly. In this review, we summarize recent progress utilizing these four processes and address how these directed assembly processes harness the external fields, the underlying mechanism of how the external fields interact with the nanoelements, and the advantages and drawbacks of utilizing each method. Finally, we discuss applications made using directed assembly and provide a perspective on the future developments and challenges.
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Affiliation(s)
- Zhimin Chai
- State
Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing100084, China
- NSF
Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing
(CHN), Northeastern University, Boston, Massachusetts02115, United States
| | - Anthony Childress
- NSF
Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing
(CHN), Northeastern University, Boston, Massachusetts02115, United States
| | - Ahmed A. Busnaina
- NSF
Nanoscale Science and Engineering Center for High-Rate Nanomanufacturing
(CHN), Northeastern University, Boston, Massachusetts02115, United States
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22
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Generalised optical printing of photocurable metal chalcogenides. Nat Commun 2022; 13:5262. [PMID: 36071063 PMCID: PMC9452581 DOI: 10.1038/s41467-022-33040-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 08/30/2022] [Indexed: 11/25/2022] Open
Abstract
Optical three-dimensional (3D) printing techniques have attracted tremendous attention owing to their applicability to mask-less additive manufacturing, which enables the cost-effective and straightforward creation of patterned architectures. However, despite their potential use as alternatives to traditional lithography, the printable materials obtained from these methods are strictly limited to photocurable resins, thereby restricting the functionality of the printed objects and their application areas. Herein, we report a generalised direct optical printing technique to obtain functional metal chalcogenides via digital light processing. We developed universally applicable photocurable chalcogenidometallate inks that could be directly used to create 2D patterns or micrometre-thick 2.5D architectures of various sizes and shapes. Our process is applicable to a diverse range of functional metal chalcogenides for compound semiconductors and 2D transition-metal dichalcogenides. We then demonstrated the feasibility of our technique by fabricating and evaluating a micro-scale thermoelectric generator bearing tens of patterned semiconductors. Our approach shows potential for simple and cost-effective architecturing of functional inorganic materials. Optical 3D printing techniques are low-cost mask-less patterning methods, but their application is limited by the number of printable materials. Here, the authors report a generalized optical method to print 2D or micrometre-thick 2.5D architectures based on metal chalcogenides inks, showing the realization of micro-scale thermoelectric generators.
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23
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Madison AC, Villarrubia JS, Liao KT, Copeland CR, Schumacher J, Siebein K, Ilic BR, Liddle JA, Stavis SM. Unmasking the Resolution-Throughput Tradespace of Focused-Ion-Beam Machining. ADVANCED FUNCTIONAL MATERIALS 2022; 32:10.1002/adfm.202111840. [PMID: 36824209 PMCID: PMC9945459 DOI: 10.1002/adfm.202111840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Indexed: 06/18/2023]
Abstract
Focused-ion-beam machining is a powerful process to fabricate complex nanostructures, often through a sacrificial mask that enables milling beyond the resolution limit of the ion beam. However, current understanding of this super-resolution effect is empirical in the spatial domain and nonexistent in the temporal domain. This article reports the primary study of this fundamental tradespace of resolution and throughput. Chromia functions well as a masking material due to its smooth, uniform, and amorphous structure. An efficient method of in-line metrology enables characterization of ion-beam focus by scanning electron microscopy. Fabrication and characterization of complex test structures through chromia and into silica probe the response of the bilayer to a focused beam of gallium cations, demonstrating super-resolution factors of up to 6 ± 2 and improvements to volume throughput of at least factors of 42 ± 2, with uncertainties denoting 95% coverage intervals. Tractable theory models the essential aspects of the super-resolution effect for various nanostructures. Application of the new tradespace increases the volume throughput of machining Fresnel lenses by a factor of 75, enabling the introduction of projection standards for optical microscopy. These results enable paradigm shifts of sacrificial masking from empirical to engineering design and from prototyping to manufacturing.
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Affiliation(s)
- Andrew C Madison
- Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - John S Villarrubia
- Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Kuo-Tang Liao
- Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
- Maryland Nanocenter, College Park, MD 20740, USA
| | - Craig R Copeland
- Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Joshua Schumacher
- CNST NanoFab, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Kerry Siebein
- CNST NanoFab, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - B Robert Ilic
- Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
- CNST NanoFab, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - J Alexander Liddle
- Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Samuel M Stavis
- Microsystems and Nanotechnology Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
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24
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Mao R, O’Leary J, Mesbah A, Mittal J. A Deep Learning Framework Discovers Compositional Order and Self-Assembly Pathways in Binary Colloidal Mixtures. JACS AU 2022; 2:1818-1828. [PMID: 36032540 PMCID: PMC9400045 DOI: 10.1021/jacsau.2c00111] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Binary colloidal superlattices (BSLs) have demonstrated enormous potential for the design of advanced multifunctional materials that can be synthesized via colloidal self-assembly. However, mechanistic understanding of the three-dimensional self-assembly of BSLs is largely limited due to a lack of tractable strategies for characterizing the many two-component structures that can appear during the self-assembly process. To address this gap, we present a framework for colloidal crystal structure characterization that uses branched graphlet decomposition with deep learning to systematically and quantitatively describe the self-assembly of BSLs at the single-particle level. Branched graphlet decomposition is used to evaluate local structure via high-dimensional neighborhood graphs that quantify both structural order (e.g., body-centered-cubic vs face-centered-cubic) and compositional order (e.g., substitutional defects) of each individual particle. Deep autoencoders are then used to efficiently translate these neighborhood graphs into low-dimensional manifolds from which relationships among neighborhood graphs can be more easily inferred. We demonstrate the framework on in silico systems of DNA-functionalized particles, in which two well-recognized design parameters, particle size ratio and interparticle potential well depth can be adjusted independently. The framework reveals that binary colloidal mixtures with small interparticle size disparities (i.e., A- and B-type particle radius ratios of r A/r B = 0.8 to r A/r B = 0.95) can promote the self-assembly of defect-free BSLs much more effectively than systems of identically sized particles, as nearly defect-free BCC-CsCl, FCC-CuAu, and IrV crystals are observed in the former case. The framework additionally reveals that size-disparate colloidal mixtures can undergo nonclassical nucleation pathways where BSLs evolve from dense amorphous precursors, instead of directly nucleating from dilute solution. These findings illustrate that the presented characterization framework can assist in enhancing mechanistic understanding of the self-assembly of binary colloidal mixtures, which in turn can pave the way for engineering the growth of defect-free BSLs.
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Affiliation(s)
- Runfang Mao
- Department
of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Jared O’Leary
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Ali Mesbah
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Jeetain Mittal
- Artie
McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
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25
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Liao WP, Liu HL, Lin YF, Su SS, Chen YT, Lin GB, Tseng TC, Lin TK, Chen CC, Huang WH, Chen SW, Shieh JM, Yu P, Chang YC. I-line photolithographic metalenses enabled by distributed optical proximity correction with a deep-learning model. OPTICS EXPRESS 2022; 30:21184-21194. [PMID: 36224843 DOI: 10.1364/oe.456469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 05/19/2022] [Indexed: 06/16/2023]
Abstract
High pattern fidelity is paramount to the performance of metalenses and metasurfaces, but is difficult to achieve using economic photolithography technologies due to low resolutions and limited process windows of diverse subwavelength structures. These hurdles can be overcome by photomask sizing or reshaping, also known as optical proximity correction (OPC). However, the lithographic simulators critical to model-based OPC require precise calibration and have not yet been specifically developed for metasurface patterning. Here, we demonstrate an accurate lithographic model based on Hopkin's image formulation and fully convolutional networks (FCN) to control the critical dimension (CD) patterning of a near-infrared (NIR) metalens through a distributed OPC flow using i-line photolithography. The lithographic model achieves an average ΔCD/CD = 1.69% due to process variations. The model-based OPC successfully produces the 260 nm CD in a metalens layout, which corresponds to a lithographic constant k1 of 0.46 and is primarily limited by the resolution of the photoresist. Consequently, our fabricated NIR metalens with a diameter of 1.5 mm and numerical aperture (NA) of 0.45 achieves a measured focusing efficiency of 64%, which is close to the calculated value of 69% and among the highest reported values using i-line photolithography.
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26
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Zhou S, Zhao X, Du P, Zhang Z, Liu X, Liu S, Guo LJ. Application of patterned sapphire substrate for III-nitride light-emitting diodes. NANOSCALE 2022; 14:4887-4907. [PMID: 35297925 DOI: 10.1039/d1nr08221c] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Recent decades have witnessed flourishing prosperity of III-nitride emitters in solid-state lighting and high-resolution displays. As one of the widely used substrates, sapphire shows superiority for heteroepitaxial growth of III-nitride light-emitting diode (LED) structure, due to the advantages of stability, low cost, high mechanical strength, as well as mature fabrication technology. However, realization of efficient LEDs grown on sapphire substrate is impeded by high density of defects in epilayers and low light extraction efficiency. The emergence of patterned sapphire substrate (PSS) turns out to be a promising and effective technology to overcome these problems and enhance the LED performances. In this review, we first introduce the background and recent advances of PSS applied in III-nitride visible and ultraviolet LEDs are. Then, we summarize the fabrication methods of PSS, together with novel methods to define nanometre-scale patterned structures. We further demonstrate the effect of PSS that contributes to reduce the threading dislocation density (TDD) of epilayers in detail. Meanwhile, mechanism of light extraction efficiency enhancement by adopting PSS is presented based on numerical analysis. Next, we explore the influence of PSS structural parameters (e.g. pattern size, pattern shape and aspect ratio) on LED performances, spanning from visible to deep ultraviolet UV emission region. Finally, challenges and potential prospects in PSS for future LED development are proposed and forecasted as well.
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Affiliation(s)
- Shengjun Zhou
- Center for Photonics and Semiconductors, School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China.
| | - Xiaoyu Zhao
- Center for Photonics and Semiconductors, School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China.
| | - Peng Du
- Center for Photonics and Semiconductors, School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China.
| | - Ziqi Zhang
- Center for Photonics and Semiconductors, School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China.
| | - Xu Liu
- Center for Photonics and Semiconductors, School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China.
| | - Sheng Liu
- The Institute of Technological Sciences, Wuhan University, Wuhan, 430072, China.
| | - L Jay Guo
- Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI, 48109, USA.
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27
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Patel BB, Walsh DJ, Patel K, Kim DH, Kwok JJ, Guironnet D, Diao Y. Rapid, interface-driven domain orientation in bottlebrush diblock copolymer films during thermal annealing. SOFT MATTER 2022; 18:1666-1677. [PMID: 35133377 DOI: 10.1039/d1sm01634b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Favorable polymer-substrate interactions induce surface orientation fields in block copolymer (BCP) melts. In linear BCP processed near equilibrium, alignment of domains generally persists for a small number of periods (∼4-6 D0) before randomization of domain orientation. Bottlebrush BCP are an emerging class of materials with distinct chain dynamics stemming from substantial molecular rigidity, enabling rapid assembly at ultrahigh (>100 nm) domain periodicities with strong photonic properties (structural color). This work assesses interface-induced ordering in PS-b-PLA bottlebrush diblock copolymer films during thermal annealing between planar surfaces. To clearly observe the decay in orientational order from surface to bulk, we choose to study micron-scale films spanning greater than 200 lamellar periods. In situ optical microscopy and transmission UV-Vis spectroscopy are used to monitor photonic properties during annealing and paired with ex situ UV-Vis reflection measurement, cross-sectional scanning electron microscopy (SEM), and small-angle X-ray scattering (SAXS) to probe the evolution of domain microstructure. Photonic properties were observed to saturate within minutes of annealing at 150 °C, with distinct variation in transmission response as a function of film thickness. The depth of the highly aligned surface region was found to vary stochastically in the range of 30-100 lamellar periods, with the sharpness of the orientation gradient decreasing substantially with increasing film thickness. This observation suggests a competition between growth of aligned, heterogeneously nucleated, grains at the surface and orientationally isotropic, homogeneously nucleated, grains throughout the bulk. This work demonstrates the high potential of bottlebrush block copolymers in rapid fabrication workflows and provides a point of comparison for future application of directed self-assembly to BBCP ordering.
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Affiliation(s)
- Bijal B Patel
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA.
| | - Dylan J Walsh
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA.
| | - Kush Patel
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA.
| | - Do Hoon Kim
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA.
| | - Justin J Kwok
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, 1304 W. Green Street, Urbana, Illinois 61801, USA
| | - Damien Guironnet
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA.
| | - Ying Diao
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA.
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28
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Haris U, Plank JT, Li B, Page ZA, Lippert AR. Visible Light Chemical Micropatterning Using a Digital Light Processing Fluorescence Microscope. ACS CENTRAL SCIENCE 2022; 8:67-76. [PMID: 35106374 PMCID: PMC8796306 DOI: 10.1021/acscentsci.1c01234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Indexed: 06/14/2023]
Abstract
Patterning chemical reactivity with a high spatiotemporal resolution and chemical versatility is critically important for advancing revolutionary emergent technologies, including nanorobotics, bioprinting, and photopharmacology. Current methods are complex and costly, necessitating novel techniques that are easy to use and compatible with a wide range of chemical functionalities. This study reports the development of a digital light processing (DLP) fluorescence microscope that enables the structuring of visible light (465-625 nm) for high-resolution photochemical patterning and simultaneous fluorescence imaging of patterned samples. A range of visible-light-driven photochemical systems, including thiol-ene photoclick reactions, Wolff rearrangements of diazoketones, and photopolymerizations, are shown to be compatible with this system. Patterning the chemical functionality onto microscopic polymer beads and films is accomplished with photographic quality and resolutions as high as 2.1 μm for Wolff rearrangement chemistry and 5 μm for thiol-ene chemistry. Photoactivation of molecules in living cells is demonstrated with single-cell resolution, and microscale 3D printing is achieved using a polymer resin with a 20 μm xy-resolution and a 100 μm z-resolution. Altogether, this work debuts a powerful and easy-to-use platform that will facilitate next-generation nanorobotic, 3D printing, and metamaterial technologies.
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Affiliation(s)
- Uroob Haris
- Department
of Chemistry, Southern Methodist University, Dallas, Texas 75205-0314, United States
| | - Joshua T. Plank
- Department
of Chemistry, Southern Methodist University, Dallas, Texas 75205-0314, United States
| | - Bo Li
- Department
of Chemistry, Southern Methodist University, Dallas, Texas 75205-0314, United States
| | - Zachariah A. Page
- Department
of Chemistry, The University of Texas at
Austin, Austin, Texas 78712, United
States
| | - Alexander R. Lippert
- Department
of Chemistry, Southern Methodist University, Dallas, Texas 75205-0314, United States
- Center
for Drug Discovery, Design, and Delivery (CD4), Southern Methodist University, Dallas, Texas 7205-0314, United States
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29
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Affiliation(s)
- Jason S. Kahn
- Department of Chemical Engineering Columbia University New York NY 10027 USA
- Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA
| | - Oleg Gang
- Department of Chemical Engineering Columbia University New York NY 10027 USA
- Department of Applied Physics and Applied Mathematics Columbia University New York NY 10027 USA
- Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA
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30
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Self-assembly of carbohydrate-based block copolymer systems: glyconanoparticles and highly nanostructured thin films. Polym J 2022. [DOI: 10.1038/s41428-021-00604-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Amadi EV, Venkataraman A, Papadopoulos C. Nanoscale self-assembly: concepts, applications and challenges. NANOTECHNOLOGY 2022; 33. [PMID: 34874297 DOI: 10.1088/1361-6528/ac3f54] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 12/02/2021] [Indexed: 05/09/2023]
Abstract
Self-assembly offers unique possibilities for fabricating nanostructures, with different morphologies and properties, typically from vapour or liquid phase precursors. Molecular units, nanoparticles, biological molecules and other discrete elements can spontaneously organise or form via interactions at the nanoscale. Currently, nanoscale self-assembly finds applications in a wide variety of areas including carbon nanomaterials and semiconductor nanowires, semiconductor heterojunctions and superlattices, the deposition of quantum dots, drug delivery, such as mRNA-based vaccines, and modern integrated circuits and nanoelectronics, to name a few. Recent advancements in drug delivery, silicon nanoelectronics, lasers and nanotechnology in general, owing to nanoscale self-assembly, coupled with its versatility, simplicity and scalability, have highlighted its importance and potential for fabricating more complex nanostructures with advanced functionalities in the future. This review aims to provide readers with concise information about the basic concepts of nanoscale self-assembly, its applications to date, and future outlook. First, an overview of various self-assembly techniques such as vapour deposition, colloidal growth, molecular self-assembly and directed self-assembly/hybrid approaches are discussed. Applications in diverse fields involving specific examples of nanoscale self-assembly then highlight the state of the art and finally, the future outlook for nanoscale self-assembly and potential for more complex nanomaterial assemblies in the future as technological functionality increases.
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Affiliation(s)
- Eberechukwu Victoria Amadi
- University of Victoria, Department of Electrical and Computer Engineering, PO BOX 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada
| | - Anusha Venkataraman
- University of Victoria, Department of Electrical and Computer Engineering, PO BOX 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada
| | - Chris Papadopoulos
- University of Victoria, Department of Electrical and Computer Engineering, PO BOX 1700 STN CSC, Victoria, BC, V8W 2Y2, Canada
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32
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Tanjeem N, Minnis MB, Hayward RC, Shields CW. Shape-Changing Particles: From Materials Design and Mechanisms to Implementation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2105758. [PMID: 34741359 PMCID: PMC9579005 DOI: 10.1002/adma.202105758] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/06/2021] [Indexed: 05/05/2023]
Abstract
Demands for next-generation soft and responsive materials have sparked recent interest in the development of shape-changing particles and particle assemblies. Over the last two decades, a variety of mechanisms that drive shape change have been explored and integrated into particulate systems. Through a combination of top-down fabrication and bottom-up synthesis techniques, shape-morphing capabilities extend from the microscale to the nanoscale. Consequently, shape-morphing particles are rapidly emerging in a variety of contexts, including photonics, microfluidics, microrobotics, and biomedicine. Herein, the key mechanisms and materials that facilitate shape changes of microscale and nanoscale particles are discussed. Recent progress in the applications made possible by these particles is summarized, and perspectives on their promise and key open challenges in the field are discussed.
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Affiliation(s)
- Nabila Tanjeem
- Department of Chemical & Biological Engineering, University of Colorado, Boulder, 3415 Colorado Avenue, Boulder, CO, 80303, USA
| | - Montana B Minnis
- Department of Chemical & Biological Engineering, University of Colorado, Boulder, 3415 Colorado Avenue, Boulder, CO, 80303, USA
| | - Ryan C Hayward
- Department of Chemical & Biological Engineering, University of Colorado, Boulder, 3415 Colorado Avenue, Boulder, CO, 80303, USA
| | - Charles Wyatt Shields
- Department of Chemical & Biological Engineering, University of Colorado, Boulder, 3415 Colorado Avenue, Boulder, CO, 80303, USA
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33
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Lendel C, Solin N. Protein nanofibrils and their use as building blocks of sustainable materials. RSC Adv 2021; 11:39188-39215. [PMID: 35492452 PMCID: PMC9044473 DOI: 10.1039/d1ra06878d] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/25/2021] [Indexed: 12/21/2022] Open
Abstract
The development towards a sustainable society requires a radical change of many of the materials we currently use. Besides the replacement of plastics, derived from petrochemical sources, with renewable alternatives, we will also need functional materials for applications in areas ranging from green energy and environmental remediation to smart foods. Proteins could, with their intriguing ability of self-assembly into various forms, play important roles in all these fields. To achieve that, the code for how to assemble hierarchically ordered structures similar to the protein materials found in nature must be cracked. During the last decade it has been demonstrated that amyloid-like protein nanofibrils (PNFs) could be a steppingstone for this task. PNFs are formed by self-assembly in water from a range of proteins, including plant resources and industrial side streams. The nanofibrils display distinct functional features and can be further assembled into larger structures. PNFs thus provide a framework for creating ordered, functional structures from the atomic level up to the macroscale. This review address how industrial scale protein resources could be transformed into PNFs and further assembled into materials with specific mechanical and functional properties. We describe what is required from a protein to form PNFs and how the structural properties at different length scales determine the material properties. We also discuss potential chemical routes to modify the properties of the fibrils and to assemble them into macroscopic structures.
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Affiliation(s)
- Christofer Lendel
- Department of Chemistry, KTH Royal Institute of Technology Teknikringen 30 SE-100 44 Stockholm Sweden
| | - Niclas Solin
- Department of Physics, Chemistry, and Biology, Electronic and Photonic Materials, Biomolecular and Organic Electronics, Linköping University Linköping 581 83 Sweden
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34
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De Fazio AF, Misatziou D, Baker YR, Muskens OL, Brown T, Kanaras AG. Chemically modified nucleic acids and DNA intercalators as tools for nanoparticle assembly. Chem Soc Rev 2021; 50:13410-13440. [PMID: 34792047 PMCID: PMC8628606 DOI: 10.1039/d1cs00632k] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Indexed: 12/26/2022]
Abstract
The self-assembly of inorganic nanoparticles to larger structures is of great research interest as it allows the fabrication of novel materials with collective properties correlated to the nanoparticles' individual characteristics. Recently developed methods for controlling nanoparticle organisation have enabled the fabrication of a range of new materials. Amongst these, the assembly of nanoparticles using DNA has attracted significant attention due to the highly selective recognition between complementary DNA strands, DNA nanostructure versatility, and ease of DNA chemical modification. In this review we discuss the application of various chemical DNA modifications and molecular intercalators as tools for the manipulation of DNA-nanoparticle structures. In detail, we discuss how DNA modifications and small molecule intercalators have been employed in the chemical and photochemical DNA ligation in nanostructures; DNA rotaxanes and catenanes associated with reconfigurable nanoparticle assemblies; and DNA backbone modifications including locked nucleic acids, peptide nucleic acids and borane nucleic acids, which affect the stability of nanostructures in complex environments. We conclude by highlighting the importance of maximising the synergy between the communities of DNA chemistry and nanoparticle self-assembly with the aim to enrich the library of tools available for the manipulation of nanostructures.
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Affiliation(s)
- Angela F De Fazio
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, SO17 1BJ, UK.
- Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Doxi Misatziou
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, SO17 1BJ, UK.
| | - Ysobel R Baker
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Otto L Muskens
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, SO17 1BJ, UK.
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK
| | - Tom Brown
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Antonios G Kanaras
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, SO17 1BJ, UK.
- Institute for Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK
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35
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Liu N, Liu G, Raj A, Sohn S, Morales-Acosta MD, Liu J, Schroers J. Unleashing nanofabrication through thermomechanical nanomolding. SCIENCE ADVANCES 2021; 7:eabi4567. [PMID: 34797709 PMCID: PMC8604398 DOI: 10.1126/sciadv.abi4567] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 10/01/2021] [Indexed: 06/13/2023]
Abstract
Advancements in nanotechnology require the development of nanofabrication methods for a wide range of materials, length scales, and elemental distributions. Today’s nanofabrication methods are typically missing at least one demanded characteristic. Hence, a general method enabling versatile nanofabrication remains elusive. Here, we show that, when revealing and using the underlying mechanisms of thermomechanical nanomolding, a highly versatile nanofabrication toolbox is the result. Specifically, we reveal interface diffusion and dislocation slip as the controlling mechanisms and use their transition to control, combine, and predict the ability to fabricate general materials, material combinations, and length scales. Designing specific elemental distributions is based on the relative diffusivities, the transition temperature, and the distribution of the materials in the feedstock. The mechanistic origins of thermomechanical nanomolding and their homologous temperature-dependent transition suggest a versatile toolbox capable of combining many materials in nanostructures and potentially producing any material in moldable shapes on the nanoscale.
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Affiliation(s)
- Naijia Liu
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
| | - Guannan Liu
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
| | - Arindam Raj
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
| | - Sungwoo Sohn
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
| | | | - Jingbei Liu
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
| | - Jan Schroers
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
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36
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Chiarcos R, Antonioli D, Ospina V, Laus M, Perego M, Gianotti V. Quantification of molecular weight discrimination in grafting to reactions from ultrathin polymer films by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Analyst 2021; 146:6145-6155. [PMID: 34487131 DOI: 10.1039/d1an01329g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
In the present study, a reliable and robust method was developed to quantify the molecular weight discrimination that can occur in grafting to reactions via indirect MALDI-TOF quantification of the molecular weights of grafted chains by comparing the characteristics of the polymeric material before the grafting reaction with those of the unreacted material recovered after grafting. Two polystyrene samples with different molecular weights and narrow molecular weight distributions were employed to prepare model blends that were grafted to silicon wafers and an analytical method was developed and validated to assess and quantify the modification of the molecular weight distribution that takes place during the grafting to process. Particular attention was paid to the standardization of the sample treatment and to find the best data collection and calibration methodologies in order to have statistically significant data even in the presence of a very scarce amount of the sample. Furthermore, to evaluate the accuracy of the analytical procedure, the lack of suitable standard and certified materials required a further experiment to be carried out by comparing the new optimized MALDI-TOF method and direct measurements using TGA-GC-MS on a model blend containing deuterated and hydrogenated polystyrene samples with appropriate molecular weights and distributions. The optimized method was applied on samples obtained by a thermally induced grafting to reaction from ultrathin polymer films and, for the first time, to our knowledge, an enrichment effect occurring in the ultrathin grafted layer obtained from a melt was evidenced.
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Affiliation(s)
- Riccardo Chiarcos
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale "A. Avogadro", Viale T. Michel 11, 15121 Alessandria, Italy.
| | - Diego Antonioli
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale "A. Avogadro", Viale T. Michel 11, 15121 Alessandria, Italy.
| | - Viviana Ospina
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale "A. Avogadro", Viale T. Michel 11, 15121 Alessandria, Italy.
| | - Michele Laus
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale "A. Avogadro", Viale T. Michel 11, 15121 Alessandria, Italy.
| | - Michele Perego
- Laboratorio MDM, IMM-CNR, Via C. Olivetti 2, 20864 Agrate Brianza, Italy
| | - Valentina Gianotti
- Dipartimento di Scienze e Innovazione Tecnologica (DISIT), Universitá del Piemonte Orientale "A. Avogadro", Viale T. Michel 11, 15121 Alessandria, Italy.
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37
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Colorimetric histology using plasmonically active microscope slides. Nature 2021; 598:65-71. [PMID: 34616057 DOI: 10.1038/s41586-021-03835-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 07/19/2021] [Indexed: 11/08/2022]
Abstract
The human eye can distinguish as many as 10,000 different colours but is far less sensitive to variations in intensity1, meaning that colour is highly desirable when interpreting images. However, most biological samples are essentially transparent, and nearly invisible when viewed using a standard optical microscope2. It is therefore highly desirable to be able to produce coloured images without needing to add any stains or dyes, which can alter the sample properties. Here we demonstrate that colorimetric histology images can be generated using full-sized plasmonically active microscope slides. These slides translate subtle changes in the dielectric constant into striking colour contrast when samples are placed upon them. We demonstrate the biomedical potential of this technique, which we term histoplasmonics, by distinguishing neoplastic cells from normal breast epithelium during the earliest stages of tumorigenesis in the mouse MMTV-PyMT mammary tumour model. We then apply this method to human diagnostic tissue and validate its utility in distinguishing normal epithelium, usual ductal hyperplasia, and early-stage breast cancer (ductal carcinoma in situ). The colorimetric output of the image pixels is compared to conventional histopathology. The results we report here support the hypothesis that histoplasmonics can be used as a novel alternative or adjunct to general staining. The widespread availability of this technique and its incorporation into standard laboratory workflows may prove transformative for applications extending well beyond tissue diagnostics. This work also highlights opportunities for improvements to digital pathology that have yet to be explored.
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Tahir U, Shim YB, Kamran MA, Kim DI, Jeong MY. Nanofabrication Techniques: Challenges and Future Prospects. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2021; 21:4981-5013. [PMID: 33875085 DOI: 10.1166/jnn.2021.19327] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanofabrication of functional micro/nano-features is becoming increasingly relevant in various electronic, photonic, energy, and biological devices globally. The development of these devices with special characteristics originates from the integration of low-cost and high-quality micro/nano-features into 3D-designs. Great progress has been achieved in recent years for the fabrication of micro/nanostructured based devices by using different imprinting techniques. The key problems are designing techniques/approaches with adequate resolution and consistency with specific materials. By considering optical device fabrication on the large-scale as a context, we discussed the considerations involved in product fabrication processes compatibility, the feature's functionality, and capability of bottom-up and top-down processes. This review summarizes the recent developments in these areas with an emphasis on established techniques for the micro/nano-fabrication of 3-dimensional structured devices on large-scale. Moreover, numerous potential applications and innovative products based on the large-scale are also demonstrated. Finally, prospects, challenges, and future directions for device fabrication are addressed precisely.
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Affiliation(s)
- Usama Tahir
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, South Korea
| | - Young Bo Shim
- Department of Opto-Mechatronics Engineering, Pusan National University, Busan 46241, South Korea
| | - Muhammad Ahmad Kamran
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, South Korea
| | - Doo-In Kim
- Department of Opto-Mechatronics Engineering, Pusan National University, Busan 46241, South Korea
| | - Myung Yung Jeong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, South Korea
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Michalska M, Laney SK, Li T, Portnoi M, Mordan N, Allan E, Tiwari MK, Parkin IP, Papakonstantinou I. Bioinspired Multifunctional Glass Surfaces through Regenerative Secondary Mask Lithography. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102175. [PMID: 34514638 DOI: 10.1002/adma.202102175] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/12/2021] [Indexed: 06/13/2023]
Abstract
Nature-inspired nanopatterning offers exciting multifunctionality spanning antireflectance and the ability to repel water/fog, oils, and bacteria; strongly dependent upon nanofeature size and morphology. However, such patterning in glass is notoriously difficult, paradoxically, due to the same outstanding chemical and thermal stability that make glass so attractive. Here, regenerative secondary mask lithography is introduced and exploited to enable customized glass nanopillars through dynamic nanoscale tunability of the side-wall profile and aspect ratio (>7). The method is simple and versatile, comprising just two steps. First, sub-wavelength scalable soft etch masks (55-350 nm) are generated through an example of block copolymer micelles or nanoimprinted photoresist. Second, their inherent durability problem is addressed by an innovative cyclic etching, when the original mask becomes embedded within a protective secondary organic mask, which is tuned and regenerated, permitting dynamic nanofeature profiling with etching selectivity >1:32. It is envisioned that such structuring in glass will facilitate fundamental studies and be useful for numerous practical applications-from displays to architectural windows. To showcase the potential, glass features are tailored to achieve excellent broadband omnidirectional antireflectivity, self-cleaning, and unique antibacterial activity toward Staphylococcus aureus.
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Affiliation(s)
- Martyna Michalska
- Photonic Innovations Lab, Department of Electronic & Electrical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Sophia K Laney
- Photonic Innovations Lab, Department of Electronic & Electrical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Tao Li
- Photonic Innovations Lab, Department of Electronic & Electrical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Mark Portnoi
- Photonic Innovations Lab, Department of Electronic & Electrical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Nicola Mordan
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, Royal Free Campus, University College London, Pond Street, London, NW3 2QG, UK
| | - Elaine Allan
- Department of Microbial Diseases, UCL Eastman Dental Institute, Royal Free Campus, University College London, Rowland Hill Street, London, NW3 2PF, UK
| | - Manish K Tiwari
- Nanoengineered Systems Laboratory, Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
- Wellcome/EPSRC Centre for Interventional and Surgical Sciences (WEISS), University College London, London, W1W 7TS, UK
| | - Ivan P Parkin
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Ioannis Papakonstantinou
- Photonic Innovations Lab, Department of Electronic & Electrical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
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40
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Raj A, Liu N, Liu G, Sohn S, Xiang J, Liu Z, Schroers J. Nanomolding of Gold and Gold-Silicon Heterostructures at Room Temperature. ACS NANO 2021; 15:14275-14284. [PMID: 34473492 DOI: 10.1021/acsnano.1c02636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nanofabrication techniques are limited by at least one of the required characteristics such as choice of material, control over geometry, fabrication requirements, yield, cost, and scalability. Our previously developed method of thermomechanical nanomolding fulfills these requirements, although it requires high processing temperatures. Here, we demonstrate low-temperature molding where we utilize the enhanced diffusivity on "eutectic interfaces". Gold nanorods are molded at room temperature using Au-Si alloy as feedstock. Instead of using alloy feedstock, these "eutectic interfaces" can also be established through a feedstock-mold combination. We demonstrate this by using pure Au as feedstock, which is molded into Si molds at room temperature, and also the reverse, Si feedstock is molded into Au molds forming high aspect ratio Au-Si core-shell nanorods. We discuss the mechanism of this low-temperature nanomolding in terms of lower homologous temperature at the eutectic interface. This technique, based on enhanced eutectic interface diffusion, provides a practical nanofabrication method that eliminates the previous high-temperature requirements, thereby expanding the range of the materials that can be practically nanofabricated.
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Affiliation(s)
- Arindam Raj
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06511, United States
| | - Naijia Liu
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06511, United States
| | - Guannan Liu
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06511, United States
| | - Sungwoo Sohn
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06511, United States
| | - Junxiang Xiang
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, 430072, Wuhan, People's Republic of China
| | - Ze Liu
- Department of Engineering Mechanics, School of Civil Engineering, Wuhan University, 430072, Wuhan, People's Republic of China
| | - Jan Schroers
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06511, United States
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41
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Ren T, Dong Y, Xu S, Gong X. Strong Purcell effect in deep subwavelength coaxial cavity with GeSn active medium. OPTICS LETTERS 2021; 46:3889-3892. [PMID: 34388767 DOI: 10.1364/ol.432164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
We propose a deep subwavelength plasmonic cavity based on a metal-coated coaxial structure with Ge0.9Sn0.1 as the active medium. A fundamental surface plasmon polariton mode is strongly confined on the sidewall of the metal core, with the quality factor up to 5×103 at 10 K. By reducing the cavity dimension to a few nanometers, this cavity mode shows a strong plasmon binding with the mode volume down to 8×10-10 (λ/n)3, and significant size-dependent damping caused by the non-local optical response. The Purcell factor is achieved as high as 2×109 at 10 K and 7×108 at 300 K. This cavity design provides a systematic guideline of scaling down the cavity size and enhancing the Purcell factor. Our theoretical demonstration and understanding of the subwavelength plasmonic cavity represent a significant step toward the large-scale integration of on-chip lasers with a low threshold.
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42
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Green CM, Hughes WL, Graugnard E, Kuang W. Correlative Super-Resolution and Atomic Force Microscopy of DNA Nanostructures and Characterization of Addressable Site Defects. ACS NANO 2021; 15:11597-11606. [PMID: 34137595 DOI: 10.1021/acsnano.1c01976] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
To bring real-world applications of DNA nanostructures to fruition, advanced microscopy techniques are needed to shed light on factors limiting the availability of addressable sites. Correlative microscopy, where two or more microscopies are combined to characterize the same sample, is an approach to overcome the limitations of individual techniques, yet it has seen limited use for DNA nanotechnology. We have developed an accessible strategy for high resolution, correlative DNA-based points accumulation for imaging in nanoscale topography (DNA-PAINT) super-resolution and atomic force microscopy (AFM) of DNA nanostructures, enabled by a simple and robust method to selectively bind DNA origami to cover glass. Using this technique, we examined addressable "docking" sites on DNA origami to distinguish between two defect scenarios-structurally incorporated but inactive docking sites, and unincorporated docking sites. We found that over 75% of defective docking sites were incorporated but inactive, suggesting unincorporated strands played a minor role in limiting the availability of addressable sites. We further explored the effects of strand purification, UV irradiation, and photooxidation on availability, providing insight on potential sources of defects and pathways toward improving the fidelity of DNA nanostructures.
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Affiliation(s)
- Christopher M Green
- Center for Bio/Molecular Science and Engineering, U.S. Naval Research Laboratory Code 6900, Washington, D.C. 20375, United States
- National Research Council, 500 fifth St NW, Washington, D.C. 20001, United States
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Robertson M, Zhou Q, Ye C, Qiang Z. Developing Anisotropy in Self-Assembled Block Copolymers: Methods, Properties, and Applications. Macromol Rapid Commun 2021; 42:e2100300. [PMID: 34272778 DOI: 10.1002/marc.202100300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/23/2021] [Indexed: 01/03/2023]
Abstract
Block copolymers (BCPs) self-assembly has continually attracted interest as a means to provide bottom-up control over nanostructures. While various methods have been demonstrated for efficiently ordering BCP nanodomains, most of them do not generically afford control of nanostructural orientation. For many applications of BCPs, such as energy storage, microelectronics, and separation membranes, alignment of nanodomains is a key requirement for enabling their practical use or enhancing materials performance. This review focuses on summarizing research progress on the development of anisotropy in BCP systems, covering a variety of topics from established aligning techniques, resultant material properties, and the associated applications. Specifically, the significance of aligning nanostructures and the anisotropic properties of BCPs is discussed and highlighted by demonstrating a few promising applications. Finally, the challenges and outlook are presented to further implement aligned BCPs into practical nanotechnological applications, where exciting opportunities exist.
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Affiliation(s)
- Mark Robertson
- School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Qingya Zhou
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Changhuai Ye
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Zhe Qiang
- School of Polymer Science and Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
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44
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Kahn JS, Gang O. Designer Nanomaterials through Programmable Assembly. Angew Chem Int Ed Engl 2021; 61:e202105678. [PMID: 34128306 DOI: 10.1002/anie.202105678] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Indexed: 11/08/2022]
Abstract
Nanoparticles have long been recognized for their unique properties, leading to exciting potential applications across optics, electronics, magnetism, and catalysis. These specific functions often require a designed organization of particles, which includes the type of order as well as placement and relative orientation of particles of the same or different kinds. DNA nanotechnology offers the ability to introduce highly addressable bonds, tailor particle interactions, and control the geometry of bindings motifs. Here, we discuss how developments in structural DNA nanotechnology have enabled greater control over 1D, 2D, and 3D particle organizations through programmable assembly. This Review focuses on how the use of DNA binding between nanocomponents and DNA structural motifs has progressively allowed the rational formation of prescribed particle organizations. We offer insight into how DNA-based motifs and elements can be further developed to control particle organizations and how particles and DNA can be integrated into nanoscale building blocks, so-called "material voxels", to realize designer nanomaterials with desired functions.
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Affiliation(s)
- Jason S Kahn
- Department of Chemical Engineering, Columbia University, New York, NY, 10027, USA.,Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Oleg Gang
- Department of Chemical Engineering, Columbia University, New York, NY, 10027, USA.,Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, 10027, USA.,Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
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45
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Affiliation(s)
- Falk Muench
- Department of Materials and Earth Sciences Technical University of Darmstadt Alarich-Weiss-Straße 2 64287 Darmstadt Germany
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46
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Mullen E, Morris MA. Green Nanofabrication Opportunities in the Semiconductor Industry: A Life Cycle Perspective. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1085. [PMID: 33922231 PMCID: PMC8146645 DOI: 10.3390/nano11051085] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/06/2021] [Accepted: 04/09/2021] [Indexed: 12/24/2022]
Abstract
The turn of the 21st century heralded in the semiconductor age alongside the Anthropocene epoch, characterised by the ever-increasing human impact on the environment. The ecological consequences of semiconductor chip manufacturing are the most predominant within the electronics industry. This is due to current reliance upon large amounts of solvents, acids and gases that have numerous toxicological impacts. Management and assessment of hazardous chemicals is complicated by trade secrets and continual rapid change in the electronic manufacturing process. Of the many subprocesses involved in chip manufacturing, lithographic processes are of particular concern. Current developments in bottom-up lithography, such as directed self-assembly (DSA) of block copolymers (BCPs), are being considered as a next-generation technology for semiconductor chip production. These nanofabrication techniques present a novel opportunity for improving the sustainability of lithography by reducing the number of processing steps, energy and chemical waste products involved. At present, to the extent of our knowledge, there is no published life cycle assessment (LCA) evaluating the environmental impact of new bottom-up lithography versus conventional lithographic techniques. Quantification of this impact is central to verifying whether these new nanofabrication routes can replace conventional deposition techniques in industry as a more environmentally friendly option.
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Affiliation(s)
- Eleanor Mullen
- CRANN and AMBER Research Centres, School of Chemistry, Trinity College Dublin, D02 W085 Dublin, Ireland
| | - Michael A. Morris
- CRANN and AMBER Research Centres, School of Chemistry, Trinity College Dublin, D02 W085 Dublin, Ireland
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47
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Taus P, Prinz A, Wanzenboeck HD, Schuller P, Tsenov A, Schinnerl M, Shawrav MM, Haslinger M, Muehlberger M. Mastering of NIL Stamps with Undercut T-Shaped Features from Single Layer to Multilayer Stamps. NANOMATERIALS 2021; 11:nano11040956. [PMID: 33918594 PMCID: PMC8070167 DOI: 10.3390/nano11040956] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 12/22/2022]
Abstract
Biomimetic structures such as structural colors demand a fabrication technology of complex three-dimensional nanostructures on large areas. Nanoimprint lithography (NIL) is capable of large area replication of three-dimensional structures, but the master stamp fabrication is often a bottleneck. We have demonstrated different approaches allowing for the generation of sophisticated undercut T-shaped masters for NIL replication. With a layer-stack of phase transition material (PTM) on poly-Si, we have demonstrated the successful fabrication of a single layer undercut T-shaped structure. With a multilayer-stack of silicon oxide on silicon, we have shown the successful fabrication of a multilayer undercut T-shaped structures. For patterning optical lithography, electron beam lithography and nanoimprint lithography have been compared and have yielded structures from 10 µm down to 300 nm. The multilayer undercut T-shaped structures closely resemble the geometry of the surface of a Morpho butterfly, and may be used in future to replicate structural colors on artificial surfaces.
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Affiliation(s)
- Philipp Taus
- TU Wien, Institute for Solid State Electronics, 1040 Vienna, Austria; (P.T.); (P.S.); (A.T.); (M.S.)
| | | | - Heinz D. Wanzenboeck
- TU Wien, Institute for Solid State Electronics, 1040 Vienna, Austria; (P.T.); (P.S.); (A.T.); (M.S.)
- Correspondence: ; Tel.: +43-1-588-36243
| | - Patrick Schuller
- TU Wien, Institute for Solid State Electronics, 1040 Vienna, Austria; (P.T.); (P.S.); (A.T.); (M.S.)
| | - Anton Tsenov
- TU Wien, Institute for Solid State Electronics, 1040 Vienna, Austria; (P.T.); (P.S.); (A.T.); (M.S.)
| | - Markus Schinnerl
- TU Wien, Institute for Solid State Electronics, 1040 Vienna, Austria; (P.T.); (P.S.); (A.T.); (M.S.)
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48
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Al-Abri R, Choi H, Parkinson P. Measuring, controlling and exploiting heterogeneity in optoelectronic nanowires. JPHYS PHOTONICS 2021. [DOI: 10.1088/2515-7647/abe282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract
Fabricated from ZnO, III-N, chalcogenide-based, III-V, hybrid perovskite or other materials, semiconductor nanowires offer single-element and array functionality as photovoltaic, non-linear, electroluminescent and lasing components. In many applications their advantageous properties emerge from their geometry; a high surface-to-volume ratio for facile access to carriers, wavelength-scale dimensions for waveguiding or a small nanowire-substrate footprint enabling heterogeneous growth. However, inhomogeneity during bottom-up growth is ubiquitous and can impact morphology, geometry, crystal structure, defect density, heterostructure dimensions and ultimately functional performance. In this topical review, we discuss the origin and impact of heterogeneity within and between optoelectronic nanowires, and introduce methods to assess, optimise and ultimately exploit wire-to-wire disorder.
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49
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Majewski PW, Michelson A, Cordeiro MAL, Tian C, Ma C, Kisslinger K, Tian Y, Liu W, Stach EA, Yager KG, Gang O. Resilient three-dimensional ordered architectures assembled from nanoparticles by DNA. SCIENCE ADVANCES 2021; 7:7/12/eabf0617. [PMID: 33741597 PMCID: PMC7978426 DOI: 10.1126/sciadv.abf0617] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 02/02/2021] [Indexed: 05/05/2023]
Abstract
Rapid developments of DNA-based assembly methods provide versatile capabilities in organizing nanoparticles (NPs) in three-dimensional (3D) organized nanomaterials, which is important for optics, catalysis, mechanics, and beyond. However, the use of these nanomaterials is often limited by the narrow range of conditions in which DNA lattices are stable. We demonstrate here an approach to creating an inorganic, silica-based replica of 3D periodic DNA-NP structures with different lattice symmetries. The created ordered nanomaterials, through the precise 3D mineralization, maintain the spatial topology of connections between NPs by DNA struts and exhibit a controllable degree of the porosity. The formed silicated DNA-NP lattices exhibit excellent resiliency. They are stable when exposed to extreme temperatures (>1000°C), pressures (8 GPa), and harsh radiation conditions and can be processed by the conventional nanolithography methods. The presented approach allows the use of a DNA assembly strategy to create organized nanomaterials for a broad range of operational conditions.
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Affiliation(s)
- Pawel W Majewski
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
- Department of Chemistry, University of Warsaw, Warsaw, Poland
| | - Aaron Michelson
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
| | - Marco A L Cordeiro
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Cheng Tian
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Chunli Ma
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Kim Kisslinger
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Ye Tian
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Wenyan Liu
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Eric A Stach
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kevin G Yager
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Oleg Gang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA.
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10027, USA
- Department of Chemical Engineering, Columbia University, New York City, NY 10027, USA
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50
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O'Leary J, Mao R, Pretti EJ, Paulson JA, Mittal J, Mesbah A. Deep learning for characterizing the self-assembly of three-dimensional colloidal systems. SOFT MATTER 2021; 17:989-999. [PMID: 33284930 DOI: 10.1039/d0sm01853h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Creating a systematic framework to characterize the structural states of colloidal self-assembly systems is crucial for unraveling the fundamental understanding of these systems' stochastic and non-linear behavior. The most accurate characterization methods create high-dimensional neighborhood graphs that may not provide useful information about structures unless these are well-defined reference crystalline structures. Dimensionality reduction methods are thus required to translate the neighborhood graphs into a low-dimensional space that can be easily interpreted and used to characterize non-reference structures. We investigate a framework for colloidal system state characterization that employs deep learning methods to reduce the dimensionality of neighborhood graphs. The framework next uses agglomerative hierarchical clustering techniques to partition the low-dimensional space and assign physically meaningful classifications to the resulting partitions. We first demonstrate the proposed colloidal self-assembly state characterization framework on a three-dimensional in silico system of 500 multi-flavored colloids that self-assemble under isothermal conditions. We next investigate the generalizability of the characterization framework by applying the framework to several independent self-assembly trajectories, including a three-dimensional in silico system of 2052 colloidal particles that undergo evaporation-induced self-assembly.
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Affiliation(s)
- Jared O'Leary
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720, USA.
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