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Feng C, Xue J, Yu X, Zhai D, Lin R, Zhang M, Xia L, Wang X, Yao Q, Chang J, Wu C. Co-inspired hydroxyapatite-based scaffolds for vascularized bone regeneration. Acta Biomater 2021; 119:419-431. [PMID: 33181360 DOI: 10.1016/j.actbio.2020.11.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 11/03/2020] [Accepted: 11/04/2020] [Indexed: 12/27/2022]
Abstract
Hydroxyapatite (HA) is the main inorganic component of human bone. Inspired by nacre and cortical bone, hydroxyapatite-based coil scaffolds were successfully prepared. The scaffolds presented "brick and mortar" multi-layered structure of nacre and multi-layered concentric circular structure of cortical bone. Because of bioactive components and hierarchical structure, the scaffolds possessed good compressive strength (≈95 MPa), flexural strength (≈161 MPa) and toughness (≈1.1 MJ/m3). In addition, they showed improved angiogenesis and osteogenesis in rat and rabbit critical sized bone defect models. By mimicking co-biological systems, this work provided a feasible strategy to optimize the properties of traditional tissue engineering biological materials for vascularized bone regeneration.
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Affiliation(s)
- Chun Feng
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jianmin Xue
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiaopeng Yu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Dong Zhai
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Rongcai Lin
- Department of Orthopaedic Surgery, Digital Medicine Institute, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, PR China
| | - Meng Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lunguo Xia
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, PR China
| | - Xiaoya Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Qingqiang Yao
- Department of Orthopaedic Surgery, Digital Medicine Institute, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, PR China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China.
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Zampetakis I, Dobah Y, Liu D, Woods B, Bezazi A, Perriman A, Scarpa F. Abnormal stiffness behaviour in artificial cactus-inspired reinforcement materials. BIOINSPIRATION & BIOMIMETICS 2020; 16:026004. [PMID: 33065569 DOI: 10.1088/1748-3190/abc1f2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 10/16/2020] [Indexed: 06/11/2023]
Abstract
Cactus fibres have previously shown unusual mechanical properties in terms of bending and axial stiffness due to their hierarchical structural morphology. Bioinspiration from those cactus fibres could potentially generate architected materials with exciting properties. To that end we have built bioinspired artificial analogues of cactus fibres to evaluate their mechanical properties. We have generated 3D printed specimens from rendered models of the cactus structure using two different printing techniques to assess the reproducibility of the structural topology. Bioinspired additive manufactured materials with unusual mechanical properties constitute an ever-evolving field for applications ranging from novel wing designs to lightweight plant-inspired analogues. The cactus-inspired 3D printed specimens developed here demonstrate an unusually high bending to axial stiffness ratios regardless of the manufacturing method used. Moreover, when compared to their equivalent beam analogues the cactus specimens demonstrate a significant potential in terms of specific (weight averaged) flexural modulus. Imaging of the artificial cactus reinforcements has enabled the generation of a one-dimensional reduced order finite element model of the cactus structure, with a distribution of cross sections along the length that simulate the inertia and mechanical behaviour of the cactus topology. The novel bioinspired material structure shows an excellent reproducibility across different manufacturing methods and suggest that the tree-like topology of the cactus fibre could be very suited to applications where high bending to axial stiffness ratios are critical.
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Affiliation(s)
- Ioannis Zampetakis
- Bristol Composites Institute (ACCIS), University of Bristol, BS8 1TR Bristol, United Kingdom
- School of Cellular and Molecular Medicine, University of Bristol, BS8 1TD Bristol, United Kingdom
| | - Yousef Dobah
- Bristol Composites Institute (ACCIS), University of Bristol, BS8 1TR Bristol, United Kingdom
| | - Dong Liu
- School of Physics, HH Wills Physics Laboratory, Tyndall Avenue, University of Bristol, BS8 1TL Bristol, United Kingdom
| | - Ben Woods
- Bristol Composites Institute (ACCIS), University of Bristol, BS8 1TR Bristol, United Kingdom
| | - Abderrezak Bezazi
- Laboratoire de Mécanique Appliquée des Nouveaux Matériaux (LMANM), Université 8 Mai 1945-Guelma, Algeria
| | - Adam Perriman
- School of Cellular and Molecular Medicine, University of Bristol, BS8 1TD Bristol, United Kingdom
| | - Fabrizio Scarpa
- Bristol Composites Institute (ACCIS), University of Bristol, BS8 1TR Bristol, United Kingdom
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Enhanced corrosion resistance, antibacterial properties, and biocompatibility by hierarchical hydroxyapatite/ciprofloxacin-calcium phosphate coating on nitrided NiTi alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111524. [PMID: 33255077 DOI: 10.1016/j.msec.2020.111524] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 01/19/2023]
Abstract
Multi-functional hierarchical coatings are deposited on the nitrided NiTi alloy. The nitrided layer is first deposited by nitrogen plasma immersion ion implantation and a middle layer containing porous hydroxyapatite and ciprofloxacin (Cip) is produced before the top calcium phosphate coating is deposited by the sol-gel method. The thicknesses of the coating and nitrided intermediate layer are about 1.54 μm and 160 nm, respectively and Cip penetrates to a depth of about 530 nm. Calcium phosphate reduces surface defects resulting in a surface roughness of 17 ± 2 nm compared to 34 ± 5 nm of the porous hydroxyapatite coating. The corrosion resistance is improved due to reduced defects and localized corrosion as manifested by the decrease in the Ni2+ release rate by 11.6% from 0.0198 to 0.0175 mg L-1 cm-2. The bacterial resistance against E. coli is also improved by about 88 times on account of Cip release and good biocompatibility is confirmed by proliferation of MC3T3 cells. This multi-functional hierarchical coating has large potential in orthopedic and dental applications.
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104
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Perricone V, Grun TB, Marmo F, Langella C, Candia Carnevali MD. Constructional design of echinoid endoskeleton: main structural components and their potential for biomimetic applications. BIOINSPIRATION & BIOMIMETICS 2020; 16:011001. [PMID: 32927446 DOI: 10.1088/1748-3190/abb86b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
The endoskeleton of echinoderms (Deuterostomia: Echinodermata) is of mesodermal origin and consists of cells, organic components, as well as an inorganic mineral matrix. The echinoderm skeleton forms a complex lattice-system, which represents a model structure for naturally inspired engineering in terms of construction, mechanical behaviour and functional design. The sea urchin (Echinodermata: Echinoidea) endoskeleton consists of three main structural components: test, dental apparatus and accessory appendages. Although, all parts of the echinoid skeleton consist of the same basic material, their microstructure displays a great potential in meeting several mechanical needs according to a direct and clear structure-function relationship. This versatility has allowed the echinoid skeleton to adapt to different activities such as structural support, defence, feeding, burrowing and cleaning. Although, constrained by energy and resource efficiency, many of the structures found in the echinoid skeleton are optimized in terms of functional performances. Therefore, these structures can be used as role models for bio-inspired solutions in various industrial sectors such as building constructions, robotics, biomedical and material engineering. The present review provides an overview of previous mechanical and biomimetic research on the echinoid endoskeleton, describing the current state of knowledge and providing a reference for future studies.
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Affiliation(s)
- Valentina Perricone
- Dept. of Engineering, University of Campania Luigi Vanvitelli, Aversa, Italy
| | - Tobias B Grun
- Dept. of Invertebrate Paleontology, University of Florida, Florida Museum, Gainesville, Florida, United States of America
| | - Francesco Marmo
- Dept. of Structures for Engineering and Architecture, University of Naples Federico II, Napoli, Italy
| | - Carla Langella
- Dept. of Architecture and Industrial Design, University of Campania Luigi Vanvitelli, Aversa, Italy
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Yoo GY, Lee S, Ko M, Kim H, Lee KN, Kim W, Do YR. Diphylleia grayi-Inspired Intelligent Hydrochromic Adhesive Film. ACS APPLIED MATERIALS & INTERFACES 2020; 12:49982-49991. [PMID: 33079523 DOI: 10.1021/acsami.0c13185] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Diphylleia grayi-inspired hydrochromic nano/microstructured films have received much attention for its promising smart hydrochromic applications owing to their simple and low-cost but energy-effective strategy. A new type of water-switchable glazing film patterned with various nano/micro air-hole inverse opal arrays is introduced by selectively removing nano/microsphere polystyrene arrays embedded in the surface of polydimethylsiloxane (PDMS) films. Using the significant contrast ratio of the bleaching and the scattering states, we have optimized the switching properties of Mie scattered patterns. As a result, we obtained a single inverse opal layer-embedded PDMS adhesive film with hexagonally close-packed 1 μm air-hole arrays as an optimum scattered film. The differences of diffusive transmittance and optical haze values between the dry and the wet states of the best scattered film reached 44.93% (ΔTD.T = 59.11-14.18%) and 54.88% (ΔH = 69.42-14.54%), respectively. In addition, using the best-optimized inverse opal layer-embedded PDMS film, we fabricated a perfectly imitated Diphylleia grayi structure for camouflage application and an intelligent hydrochromic window device. The dynamic water modulation of the scattered opaque and nonscattered transparent state of the inverse opal-patterned PDMS adhesive film can provide an advanced platform structure in the area of hydrochromic technology for smart windows, camouflage, and clear umbrellas for rainy days.
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Affiliation(s)
- Gang Yeol Yoo
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - SeungJe Lee
- Department of Chemistry, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707, Republic of Korea
| | - Minji Ko
- Department of Chemistry, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707, Republic of Korea
| | - Hyunjin Kim
- Department of Chemistry, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707, Republic of Korea
| | - Keyong Nam Lee
- Department of Chemistry, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707, Republic of Korea
| | - Woong Kim
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Young Rag Do
- Department of Chemistry, Kookmin University, 77 Jeongneung-ro, Seongbuk-gu, Seoul 02707, Republic of Korea
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Sullivan T, O’Callaghan I. Recent Developments in Biomimetic Antifouling Materials: A Review. Biomimetics (Basel) 2020; 5:E58. [PMID: 33143169 PMCID: PMC7709699 DOI: 10.3390/biomimetics5040058] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/15/2020] [Accepted: 10/28/2020] [Indexed: 11/22/2022] Open
Abstract
The term 'biomimetic' might be applied to any material or process that in some way reproduces, mimics, or is otherwise inspired by nature. Also variously termed bionic, bioinspired, biological design, or even green design, the idea of adapting or taking inspiration from a natural solution to solve a modern engineering problem has been of scientific interest since it was first proposed in the 1960s. Since then, the concept that natural materials and nature can provide inspiration for incredible breakthroughs and developments in terms of new technologies and entirely new approaches to solving technological problems has become widely accepted. This is very much evident in the fields of materials science, surface science, and coatings. In this review, we survey recent developments (primarily those within the last decade) in biomimetic approaches to antifouling, self-cleaning, or anti-biofilm technologies. We find that this field continues to mature, and emerging novel, biomimetic technologies are present at multiple stages in the development pipeline, with some becoming commercially available. However, we also note that the rate of commercialization of these technologies appears slow compared to the significant research output within the field.
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Affiliation(s)
- Timothy Sullivan
- School of Biological, Earth & Environmental Sciences, University College Cork, T23 TK30 Cork, Ireland;
- Environmental Research Institute, University College Cork, T23 XE10 Cork, Ireland
| | - Irene O’Callaghan
- School of Biological, Earth & Environmental Sciences, University College Cork, T23 TK30 Cork, Ireland;
- School of Chemistry, University College Cork, T12 K8AF Cork, Ireland
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107
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Žemaitis A, Mimidis A, Papadopoulos A, Gečys P, Račiukaitis G, Stratakis E, Gedvilas M. Controlling the wettability of stainless steel from highly-hydrophilic to super-hydrophobic by femtosecond laser-induced ripples and nanospikes. RSC Adv 2020; 10:37956-37961. [PMID: 35515197 PMCID: PMC9057189 DOI: 10.1039/d0ra05665k] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 10/06/2020] [Indexed: 12/03/2022] Open
Abstract
Results on the manipulation of the wetting properties of stainless steel alloy surface by ultrashort pulse laser texturing are presented. The wide range of water droplet contact angles from highly-hydrophilic to super-hydrophobic was achieved by generation of laser-induced periodic surface structures (LIPSS) and nanospikes. In particular, the wetting state was controlled by accumulated laser fluence, which determines the carbon/oxygen content and nano-texture type of the surface after laser treatment. A super-hydrophobic water-repelling surface was generated. The simple, single-step laser processing technology was demonstrated as a promising tool for the large-scale industrial production of self-cleaning stainless steel. Results on the manipulation of the wetting properties of stainless steel alloy surface by ultrashort pulse laser texturing are presented.![]()
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Affiliation(s)
- Andrius Žemaitis
- Department of Laser Technologies (LTS), Center for Physical Sciences and Technology (FTMC) Savanoriu Ave. 231 02300 Vilnius Lithuania
| | - Alexandros Mimidis
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology (FORTH) N. Plastira 100, Vassilika Vouton 70013 Heraklion Crete Greece
| | - Antonis Papadopoulos
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology (FORTH) N. Plastira 100, Vassilika Vouton 70013 Heraklion Crete Greece
| | - Paulius Gečys
- Department of Laser Technologies (LTS), Center for Physical Sciences and Technology (FTMC) Savanoriu Ave. 231 02300 Vilnius Lithuania
| | - Gediminas Račiukaitis
- Department of Laser Technologies (LTS), Center for Physical Sciences and Technology (FTMC) Savanoriu Ave. 231 02300 Vilnius Lithuania
| | - Emmanuel Stratakis
- Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology (FORTH) N. Plastira 100, Vassilika Vouton 70013 Heraklion Crete Greece
| | - Mindaugas Gedvilas
- Department of Laser Technologies (LTS), Center for Physical Sciences and Technology (FTMC) Savanoriu Ave. 231 02300 Vilnius Lithuania
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108
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Bhushan B. Frontiers in nanotribology: Magnetic storage, bio/nanotechnology, cosmetics, and bioinspiration. J Colloid Interface Sci 2020; 577:127-162. [PMID: 32473475 DOI: 10.1016/j.jcis.2020.05.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 10/24/2022]
Abstract
The word "nanotribology" was introduced for the first time in the title of a paper and a book in 1995. This field encompasses fundamental studies of surface characterization, adhesion, friction, scratching, wear, and lubrication at the atomic scale. At most solid-solid interfaces of technological relevance, contact occurs at numerous asperities. It is of importance to investigate a single asperity contact in the fundamental tribological studies. A nanoprobe sliding on a surface in probe-based microscopies, including atomic force microscopy (AFM) at ultralow loads, simulates one such contact. AFMs and depth-sensing nanoindentation techniques are also used for nanomechanical characterization. The field is referred to as nanomechanics. AFMs can also be used for nanoelectrical characterization which includes electrical resistance, surface potential, and capacitance mapping. Research in the field of nanotribology and nanomechanics was initiated by or for the magnetic storage industry in the late 1980s. Later in the mid-1990s, nanotribology and nanomechanics research became important in bio/nanotechnology devices which involve relative motion, as well as ultrathin films. Adhesion, friction and wear issues in bio/nanotechnology devices led to the development of the field of bio/nanotribology. Research in ultrathin films used in the cosmetic industry, including hair, hair conditioner, skin, and skin cream, led to development of the field of nanotribology in cosmetics. Biologically inspired design, adaptation, or derivation from nature, referred to as biomimetics or bioinspiration, can guide us to initiate and produce nanomaterials, nanodevices, and processes in a sustainable and environmentally friendly manner. So called, green nanotribology research is important in this field. This perspective article presents an overview of fundamental understanding of nanotribology and nanomechanics and their applications in various fields ranging from magnetic storage, bio/nanotechnology, hair and hair conditioner, skin and skin cream, and bioinspiration (green nanotribology).
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Affiliation(s)
- Bharat Bhushan
- Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics (NLBB), The Ohio State University, 201 W. 19th Avenue, Columbus, OH 43210, USA.
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109
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Nath NN, Pocivavsek L, Pugar JA, Gao Y, Salem K, Pitre N, McEnaney R, Velankar S, Tzeng E. Dynamic Luminal Topography: A Potential Strategy to Prevent Vascular Graft Thrombosis. Front Bioeng Biotechnol 2020; 8:573400. [PMID: 32984298 PMCID: PMC7487362 DOI: 10.3389/fbioe.2020.573400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/12/2020] [Indexed: 11/27/2022] Open
Abstract
AIM Biologic interfaces play important roles in tissue function. The vascular lumen-blood interface represents a surface where dynamic interactions between the endothelium and circulating blood cells are critical in preventing thrombosis. The arterial lumen possesses a uniform wrinkled surface determined by the underlying internal elastic lamina. The function of this structure is not known, but computational analyses of artificial surfaces with dynamic topography, oscillating between smooth and wrinkled configurations, support the ability of this surface structure to shed adherent material (Genzer and Groenewold, 2006; Bixler and Bhushan, 2012; Li et al., 2014). We hypothesized that incorporating a luminal surface capable of cyclical wrinkling/flattening during the cardiac cycle into vascular graft technology may represent a novel mechanism of resisting platelet adhesion and thrombosis. METHODS AND RESULTS Bilayer silicone grafts possessing luminal corrugations that cyclically wrinkle and flatten during pulsatile flow were fabricated based on material strain mismatch. When placed into a pulsatile flow circuit with activated platelets, these grafts exhibited significantly reduced platelet deposition compared to grafts with smooth luminal surfaces. Constrained wrinkled grafts with static topography during pulsatile flow were more susceptible to platelet accumulation than dynamic wrinkled grafts and behaved similar to the smooth grafts under pulsatile flow. Wrinkled grafts under continuous flow conditions also exhibited marked increases in platelet accumulation. CONCLUSION These findings provide evidence that grafts with dynamic luminal topography resist platelet accumulation and support the application of this structure in vascular graft technology to improve the performance of prosthetic grafts. They also suggest that this corrugated structure in arteries may represent an inherent, self-cleaning mechanism in the vasculature.
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Affiliation(s)
- Nandan N. Nath
- Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Luka Pocivavsek
- Division of Vascular Surgery, The University of Chicago, Chicago, IL, United States
| | - Joseph A. Pugar
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - Ya Gao
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - Karim Salem
- Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Nandan Pitre
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - Ryan McEnaney
- Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
- VA Pittsburgh Healthcare Systems, Pittsburgh, PA, United States
| | - Sachin Velankar
- Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA, United States
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, United States
| | - Edith Tzeng
- Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
- VA Pittsburgh Healthcare Systems, Pittsburgh, PA, United States
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110
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Fox-Rabinovich GS, Gershman IS, Veldhuis S. Thin-Film PVD Coating Metamaterials Exhibiting Similarities to Natural Processes under Extreme Tribological Conditions. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1720. [PMID: 32872654 PMCID: PMC7559569 DOI: 10.3390/nano10091720] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 08/27/2020] [Accepted: 08/28/2020] [Indexed: 11/25/2022]
Abstract
This paper discusses the surface-engineered nanomaterials (adaptive nano-structured physical vapor deposition (PVD) thin-film coatings) that can effectively perform under severely non-equilibrium tribological conditions. The typical features of these nanomaterials are: (a) Dynamically interacting elements present in sufficient amounts to account for its compositional/structural complexity; (b) an initial non-equilibrium state; (c) optimized micro-mechanical characteristics, and (d) intensive adaptation to the external stimuli. These could be considered as functionally graded nanomaterials that consist of two major layers: an underlying (2-3 microns) thin-film PVD coating, the surface on which an outer nanoscale layer of dynamically re-generating tribo-films is produced as a result of self-organization during friction. This tribo-film nanolayer (dissipative structures) was discovered to represent complex matter, which exhibits characteristic properties and functions common to naturally occurring systems. These include adaptive interaction with a severely non-equilibrium environment; formation of compounds such as sapphire, mullite, and garnet, similar to those that arise during metamorphism; ability to evolve with time; as well as complexity and multifunctional, synergistic behavior. Due to several nanoscale effects, this nanolayer is capable of protecting the surface with unprecedented efficiency, enabling extensive control over the performance of the entire surface-engineered system. These surface-engineered nanomaterials can achieve a range (speed and level) of adaptability to the changing environment that is not found in naturally occurring materials. Therefore, these materials could be classified as metamaterials. The second major characteristic of these materials is the structure and properties of the coating layer, which mostly functions as a catalytic medium for tribo-film generation and replenishment. A functioning example of this type of material is represented by an adaptive hard thin-film TiAlCrSiYN/TiAlCrN nano-multilayer PVD coating, which can efficiently work in an extreme environment, typical for the dry machining of hard-to-cut materials.
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Affiliation(s)
- G. S. Fox-Rabinovich
- McMaster Manufacturing Research Institute (MMRI), Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S4L7, Canada;
| | - I. S. Gershman
- Joint Stock Company Railway Research Institute, Moscow State Technological University “Stankin” (MSTU “STANKIN”), Moscow 127994, Russia;
| | - S. Veldhuis
- McMaster Manufacturing Research Institute (MMRI), Department of Mechanical Engineering, McMaster University, Hamilton, ON L8S4L7, Canada;
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111
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Ritchhart A, Monahan M, Mars J, Toney MF, De Yoreo JJ, Cossairt BM. Covalently Linked, Two-Dimensional Quantum Dot Assemblies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9944-9951. [PMID: 32787121 DOI: 10.1021/acs.langmuir.0c01668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Using nanoscale building blocks to construct hierarchical materials is a radical new branch point in materials discovery that promises new structures and emergent functionality. Understanding the design principles that govern nanoparticle assembly is critical to moving this field forward. By exploiting mixed ligand environments to target patchy nanoparticle surfaces, we have demonstrated a novel method of colloidal quantum dot (QD) assembly that gives rise to 2D structures. The equilibration of solutions of spherical and quasispherical QDs, including CdS, CdSe, and InP, with 2,2'-bipyridine-5,5'-diacrylic acid resulted in the preferential formation of 2D assemblies over the course of days as determined by transmission electron microscopy analysis. Small-angle X-ray scattering confirms the existence of the QD assemblies in solution. The dependence of the assembly on linker properties (length and rigidity), linker concentration, and total concentration was investigated, together with the data point to a mechanism involving ligand redistribution to create a patchy surface that maximizes the steric repulsion of neighboring QDs. By operating in an underexchanged regime, the arising patchiness results in enthalpically preferred directions of cross-linking that can be accessed by thermal equilibration.
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Affiliation(s)
- Andrew Ritchhart
- University of Washington, Department of Chemistry, Box 351700, Seattle, Washington 98195-1700, United States
| | - Madison Monahan
- University of Washington, Department of Chemistry, Box 351700, Seattle, Washington 98195-1700, United States
| | - Julian Mars
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Michael F Toney
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - James J De Yoreo
- University of Washington, Department of Chemistry, Box 351700, Seattle, Washington 98195-1700, United States
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Brandi M Cossairt
- University of Washington, Department of Chemistry, Box 351700, Seattle, Washington 98195-1700, United States
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112
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Chang JJ, Martin A, Du C, Pauls AM, Thuo M. Heat‐Free Biomimetic Metal Molding on Soft Substrates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Julia J. Chang
- Iowa State UniversityDepartment of Materials Science and Engineering Ames IA 50014 USA
| | - Andrew Martin
- Iowa State UniversityDepartment of Materials Science and Engineering Ames IA 50014 USA
| | - Chuanshen Du
- Iowa State UniversityDepartment of Materials Science and Engineering Ames IA 50014 USA
| | - Alana M. Pauls
- Iowa State UniversityDepartment of Materials Science and Engineering Ames IA 50014 USA
| | - Martin Thuo
- Iowa State UniversityDepartment of Materials Science and Engineering Ames IA 50014 USA
- Micro-Electronics Research Centre Ames IA 50014 USA
- Iowa State UniversityDepartment of Electrical and Computer Engineering Ames IA 50014 USA
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113
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Chang JJ, Martin A, Du C, Pauls AM, Thuo M. Heat-Free Biomimetic Metal Molding on Soft Substrates. Angew Chem Int Ed Engl 2020; 59:16346-16351. [PMID: 32671888 DOI: 10.1002/anie.202008621] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Indexed: 12/27/2022]
Abstract
Fabrication of bio-templated metallic structures is limited by differences in properties, processing conditions, packing, and material state(s). Herein, by using undercooled metal particles, differences in modulus and processing temperatures can be overcome. Adoption of autonomous processes such as self-filtration, capillary pressure, and evaporative concentration leads to enhanced packing, stabilization (jamming) and point sintering with phase change to create solid metal replicas of complex bio-based features. Differentiation of subtle differences between cultivars of the rose flower with reproduction over large areas shows that this biomimetic metal patterning (BIOMAP) is a versatile method to replicate biological features either as positive or negative reliefs irrespective of the substrate. Using rose petal patterns, we illustrate the versatility of bio-templated mapping with undercooled metal particles at ambient conditions, and with unprecedented efficiency for metal structures.
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Affiliation(s)
- Julia J Chang
- Iowa State University, Department of Materials Science and Engineering, Ames, IA, 50014, USA
| | - Andrew Martin
- Iowa State University, Department of Materials Science and Engineering, Ames, IA, 50014, USA
| | - Chuanshen Du
- Iowa State University, Department of Materials Science and Engineering, Ames, IA, 50014, USA
| | - Alana M Pauls
- Iowa State University, Department of Materials Science and Engineering, Ames, IA, 50014, USA
| | - Martin Thuo
- Iowa State University, Department of Materials Science and Engineering, Ames, IA, 50014, USA.,Micro-Electronics Research Centre, Ames, IA, 50014, USA.,Iowa State University, Department of Electrical and Computer Engineering, Ames, IA, 50014, USA
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114
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Abstract
Building skins should host multiple functions for increased performance. Addressing this, their design can benefit by learning from nature to achieve multifunctionality, where multifunctional strategies have evolved over years. However, existing frameworks to develop biomimetic adaptive building skins (Bio-ABS) have limited capabilities transferring multifunctionality from nature into designs. This study shows that through investigating the principles of hierarchy and heterogeneity, multifunctionality in nature can be transferred into biomimetic strategies. We aim at mapping the existing knowledge in biological adaptations from the perspective of multifunctionality and developing a framework achieving multifunctionality in Bio-ABS. The framework is demonstrated through the case study of Echinocactus grusonii implemented as a Bio-ABS on a digital base-case building. The methods include the Bio-ABS case study demonstrating the framework and simulating the performance of the case study and base-case building to comparatively analyze the results. The outcomes are a framework to develop multifunctional Bio-ABS and simulation results on the performance improvement Bio-ABS offer. The performance comparison between the Bio-ABS and base-case building show that there is a decrease in the discomfort hours by a maximum of 23.18%. In conclusion, translating heterogeneity and hierarchy principles in nature into engineered designs is a key aspect to achieve multifunctionality in Bio-ABS offering improved strategies in performance over conventional buildings.
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115
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Thorogood C, Bauer U. Shedding light on photosynthesis in carnivorous plants. A commentary on: 'Nepenthes × ventrata photosynthesis under different nutrient applications'. ANNALS OF BOTANY 2020; 126:iv-v. [PMID: 32467971 PMCID: PMC7304462 DOI: 10.1093/aob/mcaa092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 05/05/2020] [Indexed: 06/11/2023]
Abstract
This article comments on: Sebastià Capó-Bauçà, Marcel Font-Carrascosa, Miquel Ribas-Carbó, Andrej Pavlovč and Jeroni Galmés, Biochemical and mesophyll diffusional limits to photosynthesis are determined by prey and root nutrient uptake in the carnivorous pitcher plant Nepenthes × ventrata, Annals of Botany, Volume 126, Issue 1, 29 June 2020, Pages 25–37, https://doi.org/10.1093/aob/mcaa041.
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Affiliation(s)
| | - Ulrike Bauer
- School of Biological Sciences, University of Bristol, Bristol, UK
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116
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Zhang S, Zuo P, Wang Y, Onck P, Toonder JMJD. Anti-Biofouling and Self-Cleaning Surfaces Featured with Magnetic Artificial Cilia. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27726-27736. [PMID: 32476404 PMCID: PMC7303956 DOI: 10.1021/acsami.0c05403] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/01/2020] [Indexed: 05/22/2023]
Abstract
The fouling of surfaces submerged in a liquid is a serious problem for many applications including lab-on-a-chip devices and marine sensors. Inspired by the versatility of cilia in manipulating fluids and particles, it is experimentally demonstrated that surfaces partially covered with magnetic artificial cilia (MAC) have the capacity to efficiently prevent attachment and adhesion of real biofouling agents-microalgae Scenedesmus sp. Actuation of the MAC resulted in over 99% removal of the algae for two different scenarios: (1) actuating the MAC immediately after injecting the algae into a microfluidic chip, demonstrating antifouling and (2) starting to actuate the MAC 1 week after injecting the algae into the chip and leaving them to grow in static conditions, showing self-cleaning. It is shown that the local and global flows generated by the actuated MAC are substantial, resulting in hydrodynamic shear forces acting on the algae, which are likely to be key to efficient antifouling and self-cleaning. These findings and insights will potentially lead to novel types of self-cleaning and antifouling strategies, which may have a relevant practical impact on different fields and applications including lab-on-a-chip devices and water quality analyzers.
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Affiliation(s)
- Shuaizhong Zhang
- Department
of Mechanical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Pan Zuo
- Department
of Mechanical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Ye Wang
- Department
of Mechanical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Patrick Onck
- Zernike
Institute for Advanced Materials, University
of Groningen, 9712 CP Groningen, The Netherlands
| | - Jaap M. J. den Toonder
- Department
of Mechanical Engineering, Eindhoven University
of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
- Institute
for Complex Molecular Systems, Eindhoven
University of Technology, 5600 MB Eindhoven, The Netherlands
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117
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Chen P, Fan Y, Gao Y, Liu Q, Sun Y, Guo T, Huang B, Wang X, Fu Y. Design and Construction of Graphitic/Amorphous Heterophase Porous Carbon with a Lotus-Leaf-like Surface Microstructure for High-Performance Li-Ion and Na-Ion Batteries. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00129] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Peng Chen
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ye Fan
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yanting Gao
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Qing Liu
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yunhua Sun
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Tong Guo
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Binglong Huang
- Pingxiang Qing-An Lithium-Sulfur Technology Co., Ltd, Pingxiang 337000, China
| | - Xin Wang
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yongsheng Fu
- Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
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118
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Jamali M, Tafreshi HV. Measuring Force of Droplet Detachment from Hydrophobic Surfaces via Partial Cloaking with Ferrofluids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:6116-6125. [PMID: 32410450 DOI: 10.1021/acs.langmuir.0c00532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This paper presents a new approach to measure the force required to detach a water (a polar liquid) droplet from a hydrophobic surface. This is done by partially cloaking the droplet with a high-surface-tension oil-based ferrofluid and using a magnet to apply a controllable body force to the resulting compound droplet. Placing the assembly on a sensitive scale, the magnet can then be brought closer to the droplet to detach it from the surface while recording the forces applied to the droplet. The work presented here is novel as it uses the concept of partial cloaking in which the solid-droplet contact area is not contaminated by the ferrofluid (and the measured forces do not need postprocessing). Our study is accompanied by numerical simulations aimed at improving our understanding of the interplay between the interfacial forces in a two-phase droplet under the influence of a strong (detaching) body force and at providing additional data for in-depth analyses of these forces. In particular, the minimum ferrofluid volume required for successful water droplet detachment from hydrophobic surfaces is computed for ferrofluids of different surface tensions, and they are compared to experimental data obtained from detaching water droplets from electrospun polystyrene coatings. It is also shown that the detachment force measured via partial cloaking is independent of the volume of the ferrofluid used for the experiment.
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Affiliation(s)
- Mohammad Jamali
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, Virginia 23284-3015, United States
| | - Hooman Vahedi Tafreshi
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, Virginia 23284-3015, United States
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119
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Zhang H, Zeng H, Priimagi A, Ikkala O. Viewpoint: Pavlovian Materials-Functional Biomimetics Inspired by Classical Conditioning. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906619. [PMID: 32003096 DOI: 10.1002/adma.201906619] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/23/2019] [Indexed: 06/10/2023]
Abstract
Herein, it is discussed whether the complex biological concepts of (associative) learning can inspire responsive artificial materials. It is argued that classical conditioning, being one of the most elementary forms of learning, inspires algorithmic realizations in synthetic materials, to allow stimuli-responsive materials that learn to respond to a new stimulus, to which they are originally insensitive. Two synthetic model systems coined as "Pavlovian materials" are described, whose stimuli-responsiveness algorithmically mimics programmable associative learning, inspired by classical conditioning. The concepts minimally need a stimulus-triggerable memory, in addition to two stimuli, i.e., the unconditioned and the originally neutral stimuli. Importantly, the concept differs conceptually from the classic stimuli-responsive and shape-memory materials, as, upon association, Pavlovian materials obtain a given response using a new stimulus (the originally neutral one); i.e., the system evolves to a new state. This also enables the functionality to be described by a logic diagram. Ample room for generalization to different stimuli and memory combinations is foreseen, and opportunities to develop future adaptive materials with ever-more intelligent functions are expected.
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Affiliation(s)
- Hang Zhang
- Department of Applied Physics, Aalto University, P.O. Box 15100, FI 02150, Espoo, Finland
| | - Hao Zeng
- Smart Photonic Materials, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33101, Tampere, Finland
| | - Arri Priimagi
- Smart Photonic Materials, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33101, Tampere, Finland
| | - Olli Ikkala
- Department of Applied Physics, Aalto University, P.O. Box 15100, FI 02150, Espoo, Finland
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120
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Jiang Y, Lian J, Jiang Z, Li Y, Wen C. Thermodynamic analysis on wetting states and wetting state transitions of rough surfaces. Adv Colloid Interface Sci 2020; 278:102136. [PMID: 32171897 DOI: 10.1016/j.cis.2020.102136] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 10/24/2022]
Abstract
Determining the equilibrium wetting states and exploring the conditions and mechanisms of the wetting state transition from the Cassie-Baxter (CB) state to the Wenzel (W) state (CB-W transition) have been a central topic in the study of superhydrophobic behavior on rough or textured surfaces. Although considerable progress has been made, some issues regarding this topic are still not completely understood. In this study, a systematic thermodynamic analysis has been performed to address several key issues related to this topic. Generalized theoretical expressions for determining the equilibrium wetting states (the threshold Young contact angle of the CB region) and evaluating the stability of the CB state (the energy barrier separating the CB and W states and the critical pressure for the CB-W transition) have been derived. Applying these expressions to four types of surfaces built with protrusions in paraboloid, truncated cone, inverted truncated cone and flat-top pillar shapes, the wetting equilibrium and resultant wetting states have been studied. The physical meanings of the threshold Young contact angle, the roles and mechanisms of the energy barrier and critical pressure in stabilizing the CB state have been discussed. Finally, a general guidance for achieving robust superhydrophobicity on the studied surfaces has been given.
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121
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Fiorello I, Del Dottore E, Tramacere F, Mazzolai B. Taking inspiration from climbing plants: methodologies and benchmarks-a review. BIOINSPIRATION & BIOMIMETICS 2020; 15:031001. [PMID: 32045368 DOI: 10.1088/1748-3190/ab7416] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
One of the major challenges in robotics and engineering is to develop efficient technological solutions that are able to cope with complex environments and unpredictable constraints. Taking inspiration from natural organisms is a well-known approach to tackling these issues. Climbing plants are an important, yet innovative, source of inspiration due to their ability to adapt to diverse habitats, and can be used as a model for developing robots and smart devices for exploration and monitoring, as well as for search and rescue operations. This review reports the main methodologies and approaches used by scientists to investigate and extract the features of climbing plants that are relevant to the artificial world in terms of adaptation, movement, and behaviour, and it summarizes the current available climbing plant-inspired engineering solutions.
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Affiliation(s)
- Isabella Fiorello
- The Biorobotics Institute, Scuola Superiore Sant'Anna, Pisa, Italy. Center for Micro-Biorobotics, Istituto Italiano di Tecnologia, Pontedera, Italy
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122
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Arctic design: revisiting traditional fur clothing within the daily routine of reindeer nomads. Heliyon 2020; 6:e03355. [PMID: 32099916 PMCID: PMC7031353 DOI: 10.1016/j.heliyon.2020.e03355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 01/11/2020] [Accepted: 01/31/2020] [Indexed: 11/23/2022] Open
Abstract
This research investigates the domain of indigenous fur clothing for the extreme conditions of the Arctic. The main goal is to reveal the principles of personal wellbeing through observing and analyzing traditional Nenets fur coat and footwear together with the actual experiences of making and using clothing items. For that, we draw from the existing pool of research on functional parameters tested and evaluated in a lab and our empirical data (interviews and participant observations 2013–2016), to eventually come up with two interwoven concepts of clothing based on bio- and cultural mimesis. On the one hand, traditional fur clothing is the result of the biomimetic appropriation of natural abilities of reindeer to withstand severe climates. On the other, it is the embodiment of knowledge on the environment and skills acquired through the dynamic relationship between tools, materials, and personal identities of makers and wearers. This conceptualization, we argue, provides insights into how to both support the very existence in the extreme/severe environment and contribute to personal wellbeing. We conclude by proposing directions for further research towards developing design standards for the emerging multicultural community of Arctic newcomers.
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123
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Antifouling Napyradiomycins from Marine-Derived Actinomycetes Streptomyces aculeolatus. Mar Drugs 2020; 18:md18010063. [PMID: 31963732 PMCID: PMC7024211 DOI: 10.3390/md18010063] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 01/20/2023] Open
Abstract
The undesired attachment of micro and macroorganisms on water-immersed surfaces, known as marine biofouling, results in severe prevention and maintenance costs (billions €/year) for aquaculture, shipping and other industries that rely on coastal and off-shore infrastructures. To date, there are no sustainable, cost-effective and environmentally safe solutions to address this challenging phenomenon. Therefore, we investigated the antifouling activity of napyradiomycin derivatives that were isolated from actinomycetes from ocean sediments collected off the Madeira Archipelago. Our results revealed that napyradiomycins inhibited ≥80% of the marine biofilm-forming bacteria assayed, as well as the settlement of Mytilus galloprovincialis larvae (EC50 < 5 µg/ml and LC50/EC50 >15), without viability impairment. In silico prediction of toxicity end points are of the same order of magnitude of standard approved drugs and biocides. Altogether, napyradiomycins disclosed bioactivity against marine micro and macrofouling organisms, and non-toxic effects towards the studied species, displaying potential to be used in the development of antifouling products.
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124
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Knapczyk-Korczak J, Ura DP, Gajek M, Marzec MM, Berent K, Bernasik A, Chiverton JP, Stachewicz U. Fiber-Based Composite Meshes with Controlled Mechanical and Wetting Properties for Water Harvesting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:1665-1676. [PMID: 31820919 DOI: 10.1021/acsami.9b19839] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Water is the basis of life in the world. Unfortunately, resources are shrinking at an alarming rate. The lack of access to water is still the biggest problem in the modern world. The key to solving it is to find new unconventional ways to obtain water from alternative sources. Fog collectors are becoming an increasingly important way of water harvesting as there are places in the world where fog is the only source of water. Our aim is to apply electrospun fiber technology, due to its high surface area, to increase fog collection efficiency. Therefore, composites consisting of hydrophobic and hydrophilic fibers were successfully fabricated using a two-nozzle electrospinning setup. This design enables the realization of optimal meshes for harvesting water from fog. In our studies we focused on combining hydrophobic polystyrene (PS) and hydrophilic polyamide 6 (PA6), surface properties in the produced meshes, without any chemical modifications, on the basis of new hierarchical composites for collecting water. This combination of hydrophobic and hydrophilic materials causes water to condense on the hydrophobic microfibers and to run down on the hydrophilic nanofibers. By adjusting the fraction of PA6 nanofibers, we were able to tune the mechanical properties of PS meshes and importantly increase the efficiency in collecting water. We combined a few characterization methods together with novel image processing protocols for the analysis of fiber fractions in the constructed meshes. The obtained results show a new single-step method to produce meshes with enhanced mechanical properties and water collecting abilities that can be applied in existing fog water collectors. This is a new promising design for fog collectors with nano- and macrofibers which are able to efficiently harvest water, showing great application in comparison to commercially available standard meshes.
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Affiliation(s)
- Joanna Knapczyk-Korczak
- Faculty of Metals Engineering and Industrial Computer Science, International Centre of Electron Microscopy for Materials Science , AGH University of Science and Technology , 30-059 Krakow , Poland
| | - Daniel P Ura
- Faculty of Metals Engineering and Industrial Computer Science, International Centre of Electron Microscopy for Materials Science , AGH University of Science and Technology , 30-059 Krakow , Poland
| | - Marcin Gajek
- Faculty of Materials Science and Ceramics , AGH University of Science and Technology , 30-059 Krakow , Poland
| | - Mateusz M Marzec
- Academic Centre for Materials and Nanotechnology , AGH University of Science and Technology , 30-059 Krakow , Poland
| | - Katarzyna Berent
- Academic Centre for Materials and Nanotechnology , AGH University of Science and Technology , 30-059 Krakow , Poland
| | - Andrzej Bernasik
- Academic Centre for Materials and Nanotechnology , AGH University of Science and Technology , 30-059 Krakow , Poland
- Faculty of Physics and Applied Computer Science , AGH University of Science and Technology , 30-059 Krakow , Poland
| | - John P Chiverton
- School of Energy and Electronic Engineering , University of Portsmouth , Portsmouth PO1 3DJ , United Kingdom
| | - Urszula Stachewicz
- Faculty of Metals Engineering and Industrial Computer Science, International Centre of Electron Microscopy for Materials Science , AGH University of Science and Technology , 30-059 Krakow , Poland
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125
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Zeng H, Zhang H, Ikkala O, Priimagi A. Associative Learning by Classical Conditioning in Liquid Crystal Network Actuators. MATTER 2020; 2:194-206. [PMID: 31984376 PMCID: PMC6961496 DOI: 10.1016/j.matt.2019.10.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Responsive and shape-memory materials allow stimuli-driven switching between fixed states. However, their behavior remains unchanged under repeated stimuli exposure, i.e., their properties do not evolve. By contrast, biological materials allow learning in response to past experiences. Classical conditioning is an elementary form of associative learning, which inspires us to explore simplified routes even for inanimate materials to respond to new, initially neutral stimuli. Here, we demonstrate that soft actuators composed of thermoresponsive liquid crystal networks "learn" to respond to light upon a conditioning process where light is associated with heating. We apply the concept to soft microrobotics, demonstrating a locomotive system that "learns to walk" under periodic light stimulus, and gripping devices able to "recognize" irradiation colors. We anticipate that actuators that algorithmically emulate elementary aspects of associative learning and whose sensitivity to new stimuli can be conditioned depending on past experiences may provide new routes toward adaptive, autonomous soft microrobotics.
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Affiliation(s)
- Hao Zeng
- Smart Photonic Materials, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, 33101 Tampere, Finland
| | - Hang Zhang
- Department of Applied Physics, Aalto University, P.O. Box 15100, 02150 Espoo, Finland
| | - Olli Ikkala
- Department of Applied Physics, Aalto University, P.O. Box 15100, 02150 Espoo, Finland
- Corresponding author
| | - Arri Priimagi
- Smart Photonic Materials, Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, 33101 Tampere, Finland
- Corresponding author
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126
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Ianiro A, Chi M, Hendrix MMRM, Koç AV, Eren ED, Sztucki M, Petukhov AV, de With G, Esteves ACC, Tuinier R. Block copolymer hierarchical structures from the interplay of multiple assembly pathways. Polym Chem 2020. [DOI: 10.1039/d0py00081g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Structurally complex hierarchical block copolymer assemblies can be formed in solution by controlling the interplay of phase separation, crystallization and block segregation with temperature.
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Affiliation(s)
- Alessandro Ianiro
- Laboratory of Physical Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Meng Chi
- Laboratory of Physical Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Marco M. R. M. Hendrix
- Laboratory of Physical Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Ali Vala Koç
- Laboratory of Physical Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - E. Deniz Eren
- Laboratory of Physical Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | | | - Andrei V. Petukhov
- Van ‘t Hoff Laboratory for Physical and Colloid Chemistry
- Department of Chemistry and Debye Institute
- Utrecht University
- Utrecht
- The Netherlands
| | - Gijsbertus de With
- Laboratory of Physical Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - A. Catarina C. Esteves
- Laboratory of Physical Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
| | - Remco Tuinier
- Laboratory of Physical Chemistry
- Department of Chemical Engineering and Chemistry
- Eindhoven University of Technology
- 5600 MB Eindhoven
- The Netherlands
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127
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Rossegger E, Nees D, Turisser S, Radl S, Griesser T, Schlögl S. Photo-switching of surface wettability on micropatterned photopolymers for fast transport of water droplets over a long-distance. Polym Chem 2020. [DOI: 10.1039/d0py00263a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Long distance movement (>20 mm) of water droplets across thiol–acrylate photopolymers with inscribed wettability and Laplace pressure gradient is demonstrated.
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Affiliation(s)
- E. Rossegger
- Polymer Competence Center Leoben GmbH
- A-8700 Leoben
- Austria
| | - D. Nees
- Joanneum Research GmbH
- A-8160 Weiz
- Austria
| | - S. Turisser
- Polymer Competence Center Leoben GmbH
- A-8700 Leoben
- Austria
| | - S. Radl
- Polymer Competence Center Leoben GmbH
- A-8700 Leoben
- Austria
| | - T. Griesser
- Institute of Chemistry of Polymeric Materials
- Montanuniversitaet Leoben
- A-8700 Leoben
- Austria
| | - S. Schlögl
- Polymer Competence Center Leoben GmbH
- A-8700 Leoben
- Austria
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128
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Robust Fabrication of Polymeric Nanowire with Anodic Aluminum Oxide Templates. MICROMACHINES 2019; 11:mi11010046. [PMID: 31905961 PMCID: PMC7019737 DOI: 10.3390/mi11010046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 11/16/2022]
Abstract
Functionalization of a surface with biomimetic nano-/micro-scale roughness (wires) has attracted significant interests in surface science and engineering as well as has inspired many real-world applications including anti-fouling and superhydrophobic surfaces. Although methods relying on lithography include soft-lithography greatly increase our abilities in structuring hard surfaces with engineered nano-/micro-topologies mimicking real-world counterparts, such as lotus leaves, rose petals, and gecko toe pads, scalable tools enabling us to pattern polymeric substrates with the same structures are largely absent in literature. Here we present a robust and simple technique combining anodic aluminum oxide (AAO) templating and vacuum-assisted molding to fabricate nanowires over polymeric substrates. We have demonstrated the efficacy and robustness of the technique by successfully fabricating nanowires with large aspect ratios (>25) using several common soft materials including both cross-linking polymers and thermal plastics. Furthermore, a model is also developed to determine the length and molding time based on nanowires material properties (e.g., viscosity and interfacial tension) and operational parameters (e.g., pressure, vacuum, and AAO template dimension). Applying the technique, we have further demonstrated the confinement effects on polymeric crosslinking processes and shown substantial lengthening of the curing time.
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129
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Kim D, Lee B, Marshall BP, Jang E, Thomopoulos S, Jun YS. Pulsed Electrical Stimulation Enhances Body Fluid Transport for Collagen Biomineralization. ACS APPLIED BIO MATERIALS 2019; 3:902-910. [DOI: 10.1021/acsabm.9b00979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Doyoon Kim
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Byeongdu Lee
- X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Brittany P. Marshall
- Department of Orthopedic Surgery, Department of Biomedical Engineering, Columbia University, New York, New York 10032-3072, United States
| | - Eunyoung Jang
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Stavros Thomopoulos
- Department of Orthopedic Surgery, Department of Biomedical Engineering, Columbia University, New York, New York 10032-3072, United States
| | - Young-Shin Jun
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
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130
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Bhaskar D, Manhart A, Milzman J, Nardini JT, Storey KM, Topaz CM, Ziegelmeier L. Analyzing collective motion with machine learning and topology. CHAOS (WOODBURY, N.Y.) 2019; 29:123125. [PMID: 31893635 PMCID: PMC7027427 DOI: 10.1063/1.5125493] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/22/2019] [Indexed: 06/10/2023]
Abstract
We use topological data analysis and machine learning to study a seminal model of collective motion in biology [M. R. D'Orsogna et al., Phys. Rev. Lett. 96, 104302 (2006)]. This model describes agents interacting nonlinearly via attractive-repulsive social forces and gives rise to collective behaviors such as flocking and milling. To classify the emergent collective motion in a large library of numerical simulations and to recover model parameters from the simulation data, we apply machine learning techniques to two different types of input. First, we input time series of order parameters traditionally used in studies of collective motion. Second, we input measures based on topology that summarize the time-varying persistent homology of simulation data over multiple scales. This topological approach does not require prior knowledge of the expected patterns. For both unsupervised and supervised machine learning methods, the topological approach outperforms the one that is based on traditional order parameters.
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Affiliation(s)
- Dhananjay Bhaskar
- Center for Biomedical Engineering, Brown University, Providence, Rhode Island 02912, USA
| | - Angelika Manhart
- Department of Mathematics, University College London, London WC1E 6BT, United Kingdom
| | - Jesse Milzman
- Department of Mathematics, University of Maryland, College Park, Maryland 20742, USA
| | - John T Nardini
- The Statistical and Applied Mathematical Sciences Institute (SAMSI), Durham, North Carolina 27709, USA
| | - Kathleen M Storey
- Department of Mathematics, University of Michigan, Ann Arbor, Michigan 48105, USA
| | - Chad M Topaz
- Department of Mathematics and Statistics, Williams College, Williamstown, Massachusetts 01267, USA
| | - Lori Ziegelmeier
- Department of Mathematics, Statistics, and Computer Science, Macalester College, Saint Paul, Minnesota 55105, USA
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131
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Bandyopadhyay S, Sriram SM, Parihar V, Das Gupta S, Mukherjee R, Chakraborty S. Tunable adhesion and slip on a bio-mimetic sticky soft surface. SOFT MATTER 2019; 15:9031-9040. [PMID: 31637378 DOI: 10.1039/c9sm01680e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Simultaneous tuning of wettability and adhesion of a surface requires intricate procedures for altering the interfacial structures. Here, we present a simple method for preparing a stable slippery surface, with an intrinsic capability of varying its adhesion characteristics. Cross-linked PDMS, an inherent hydrophobic material commonly used for microfluidic applications, is used to replicate the structures on the surface of a rose petal which acts as a high adhesion solid base and is subsequently oleoplaned with silicone oil. Our results demonstrate that the complex hierarchical rose petal structures can arrest dewetting of the silicone oil on the cross linked PDMS base by anchoring the oil film strongly even under flow. Further, by tuning the extent of submergence of the rose petal structures with silicone oil, we could alter the adhesion characteristics of the surface on demand, while retaining its slippery characteristics for a wide range of the pertinent parameters. We have also demonstrated the possible fabrication of gradient adhesion surfaces. This, in turn, may find a wide variety of applications in water harvesting, droplet maneuverability and no-loss transportation in resource-limited settings.
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Affiliation(s)
- Saumyadwip Bandyopadhyay
- Advanced Technology Development Centre, Indian Institute of Technology Kharagpur, 721 302, West Bengal, India.
| | - S M Sriram
- Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal 575025, Karnataka, India
| | - Vartika Parihar
- Instability & Soft Patterning Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, 721302, West Bengal, India.
| | - Sunando Das Gupta
- Advanced Technology Development Centre, Indian Institute of Technology Kharagpur, 721 302, West Bengal, India. and Instability & Soft Patterning Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, 721302, West Bengal, India.
| | - Rabibrata Mukherjee
- Instability & Soft Patterning Laboratory, Department of Chemical Engineering, Indian Institute of Technology Kharagpur, 721302, West Bengal, India.
| | - Suman Chakraborty
- Advanced Technology Development Centre, Indian Institute of Technology Kharagpur, 721 302, West Bengal, India. and Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, 721302, West Bengal, India
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132
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Bae H, Lee E. Biological and ecological classification of biomimicry from a biology push standpoint. Ecosphere 2019. [DOI: 10.1002/ecs2.2959] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Haejin Bae
- Division of Ecological Information Biomimicry Team National Institute of Ecology Chungcheongnam‐do Korea
| | - Eunok Lee
- Division of Ecological Information Biomimicry Team National Institute of Ecology Chungcheongnam‐do Korea
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133
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Turbil C, Yoo TSH, Simonsen I, Teisseire J, Gozhyk I, Garcia-Caurel E. Experimental studies of the transmission of light through low-coverage regular or random arrays of silica micropillars supported by a glass substrate. APPLIED OPTICS 2019; 58:9267-9278. [PMID: 31873606 DOI: 10.1364/ao.58.009267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 10/19/2019] [Indexed: 06/10/2023]
Abstract
The transmission of light through low-coverage regular and random arrays of glass-supported silica micropillars of diameters 10-40 µm and height 10 µm is studied experimentally. Angle-resolved measurements of the transmitted intensity are performed at visible wavelengths by either a goniospectrophotometer or a multimodal imaging (Mueller) polarimetric microscope. It is demonstrated that for the regular arrays, the angle-resolved measurements are capable of resolving many of the densely packed diffraction orders that are expected for periodic structures of lattice constants 20-80 µm, but they also display features ("halos" and fringes) that are due to the scattering and guiding of light in individual micropillars or in the supporting glass slides. These latter features are also found in angle-resolved measurements on random arrays of micropillars of the same surface coverage. Finally, we perform a comparison of direct measurements of haze in transmission for our patterned glass samples with what can be calculated from the angle-resolved transmitted intensity measurements. Good agreement between the two types of results is found, which testifies to the accuracy of the angle-resolved measurements that we report.
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134
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Li Z, Jia M, Doble S, Hockey E, Yan H, Avenoso JP, Bodine D, Zhang Y, Ni C, Newberg JT, Gundlach L. Energy Band Architecture of a Hierarchical ZnO/Au/Cu xO Nanoforest by Mimicking Natural Superhydrophobic Surfaces. ACS APPLIED MATERIALS & INTERFACES 2019; 11:40490-40502. [PMID: 31571477 DOI: 10.1021/acsami.9b13610] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The ZnO/Cu2O heterojunction promises high efficiency in photocurrent conversion and other light-driven processes, but the lattice mismatch between ZnO and Cu2O leads to slow electron transfer and low conversion efficiency. In addition, the stability of Cu2O is still the main challenging and limiting factor for device applications in real environments. CuxO is a mixed semiconductor of CuO and Cu2O, which is a promising alternative to Cu2O in device fabrication due to its better stability and photocatalytic efficiency. In this work, CuxO nanorods were attached to vertically aligned gold-decorated ZnO nanorods, creating a hierarchical ZnO/Au/CuxO nanoforest. In addition, the hierarchical surface shows superhydrophobicity, which can prevent Cu2O degradation by water and oxygen. Femtosecond time-resolved transient absorption spectroscopy was employed to investigate the electron transfer dynamics in the ZnO/Au/CuxO heterojunction. The nanoforest demonstrates enhanced electron mobility, increased lattice match, and higher photocurrent conversion efficiency compared with bare ZnO, CuxO, or ZnO/CuxO.
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Affiliation(s)
| | | | | | | | | | | | | | - Yuying Zhang
- Department of Materials Science and Engineering , University of Delaware , 127 The Green , Newark , Delaware 19716 , United States
| | - Chaoying Ni
- Department of Materials Science and Engineering , University of Delaware , 127 The Green , Newark , Delaware 19716 , United States
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135
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DeMella KC, Raghavan SR. Catalyst-Loaded Capsules that Spontaneously Inflate and Violently Eject their Core. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13718-13726. [PMID: 31603331 DOI: 10.1021/acs.langmuir.9b02174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We present a design for polymer capsules that exhibit a range of unusual autonomous behaviors when exposed to a chemical fuel. The capsules have a physically gelled core (alginate-Ca2+) loaded with catalytic (silver) particles and a shell composed of a chemically cross-linked gel. In the presence of the fuel (H2O2), a catalytic reaction occurs, which generates oxygen (O2) gas. The gas collects in a zone between the core and the shell, and the resulting gas pressure causes the elastic shell to stretch. This makes the capsule inflate in a process reminiscent of a swelling pufferfish. As the capsule inflates, the polymer chains in the shell continue to stretch until a breaking point is reached, whereupon the shell ruptures. Three rupture modes are documented: gentle, moderate, and violent. The latter involves the gelled core being forcefully ejected out of the shell in a manner similar to the ejection of needles out of nematocysts on jellyfish. The extent and duration of inflation can be tuned by altering the core and shell composition; for example, shells that are more densely cross-linked swell less and rupture faster. Also, instead of a catalytic reaction, capsule inflation can be achieved by combining reactants, one in the capsule and the other in the external solution, that together generate a different gas (e.g., CO2).
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Affiliation(s)
- Kerry C DeMella
- Department of Chemistry & Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Srinivasa R Raghavan
- Department of Chemistry & Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
- Department of Chemical & Biomolecular Engineering , University of Maryland , College Park , Maryland 20742 , United States
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136
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Abstract
Nano-texturing of polymers offers the possibility to drive important surface properties such as wettability and anti-reflectivity. Interestingly, plasma can lead to the desired characteristic of nanofeatures through a one step process based onto dry plasma etching. In this work, the literature concerning such plasma nano-texturing will be reviewed for different polymers, and in particular, for applications based upon wettability control. Then the mechanism of such processes will be commented upon, with a glance to the different characteristics of the polymers. Finally, some hints onto a feasible approach to plasma nano-texturing of the different polymers will be given.
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137
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Kim H, Yarin AL, Lee MW. Ultra-fast bull's eye-like self-healing using CNT heater. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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138
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Chen X, Song L, Jiang X, Zhang X. Bioinspired superhydrophobic–superhydrophilic convertible film based on anisotropic red blood cell-like particles with protuberances. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123674] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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139
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Huo GF, Shi X, Tu Q, Hu YX, Wu GY, Yin GQ, Li X, Xu L, Ding HM, Yang HB. Radical-Induced Hierarchical Self-Assembly Involving Supramolecular Coordination Complexes in Both Solution and Solid States. J Am Chem Soc 2019; 141:16014-16023. [PMID: 31509391 DOI: 10.1021/jacs.9b08149] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
To explore a new supramolecular interaction as the main driving force to induce hierarchical self-assembly (HSA) is of great importance in supramolecular chemistry. Herein, we present a radical-induced HSA process through the construction of well-defined rhomboidal metallacycles containing triphenylamine (TPA) moieties. The light-induced radical generation of the TPA-based metallacycle has been demonstrated, which was found to subsequently drive hierarchical self-assembly of metallacycles in both solution and solid states. The morphologies of nanovesicle structures and nanospheres resulting from hierarchical self-assembly have been well-illustrated by using TEM and high-angle annular dark-field STEM (HAADF-STEM) micrographs. The mechanism of HSA is supposed to be associated with the TPA radical interaction and metallacycle stacking interaction, which has been supported by the coarse-grained molecular dynamics simulations. This study provides important information to understand the fundamental TPA radical interaction, which thus injects new energy into the hierarchical self-assembly of supramolecular coordination complexes (SCCs). More interestingly, the stability of TPA radical cations was significantly increased in these metallacycles during the hierarchical self-assembly process, thereby opening a new way to develop stable organic radical cations in the future.
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Affiliation(s)
- Gui-Fei Huo
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Xueliang Shi
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Qian Tu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Yi-Xiong Hu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Gui-Yuan Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Guang-Qiang Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China.,Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States
| | - Xiaopeng Li
- Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States
| | - Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
| | - Hong-Ming Ding
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, School of Physical Science and Technology , Soochow University , Suzhou 215006 , P. R. China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , Shanghai 200062 , P. R. China
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140
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Biomimetic economy: human ecological-economic systems emulating natural ecological systems. SOCIAL RESPONSIBILITY JOURNAL 2019. [DOI: 10.1108/srj-09-2018-0241] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Purpose
The purpose of this paper is to examine the use of biomimicry to inspire sustainable development in economic systems. The research purpose is to explore the link between ecological systems and economic systems to highlight applied environmental solutions. The goal is to propose some driver to develop sustainable business practices inspired on the principles of biomimicry.
Design/methodology/approach
This paper provides a theoretical approach that builds the basis for a better understanding of the relationship between nature and sustainable economic decisions. The premise is that in the field of sustainable development, strategies based on “learning from nature” are useful. Furthermore, the concept of biomimicry provides principles and tools specifically aimed at design practice.
Findings
The complexity of economic systems has shown that high levels of abstraction are required when conceptualising problems and explanations related with nature-inspired solutions. Stakeholder engagement and transdisciplinary collaboration are required to face long-term environmental challenges. Moreover, the exploratory analysis applied in this paper appeared suitable to compile existing literature.
Practical implications
The study provides some general guidelines and empirical approach through case studies that could help decision makers convert nature-inspired alternatives into valuable strategic business opportunities. Although presented practical cases are framed in the local sphere (i.e. the Basque Country), they can serve as references in other international contexts.
Social implications
New business models should recognize the positive synchronization between well-managed social, environmental and economic systems.
Originality/value
The proposed ideas deepen the understanding on the sustainable development and the link between ecological and economic systems. In fact, the concept of biomimetic economy has not been dealt with or developed in depth in previous academic works, nor has it been published thoroughly in the field of research.
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141
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El Gezawi M, Wölfle UC, Haridy R, Fliefel R, Kaisarly D. Remineralization, Regeneration, and Repair of Natural Tooth Structure: Influences on the Future of Restorative Dentistry Practice. ACS Biomater Sci Eng 2019; 5:4899-4919. [PMID: 33455239 DOI: 10.1021/acsbiomaterials.9b00591] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Currently, the principal strategy for the treatment of carious defects involves cavity preparations followed by the restoration of natural tooth structure with a synthetic material of inferior biomechanical and esthetic qualities and with questionable long-term clinical reliability of the interfacial bonds. Consequently, prevention and minimally invasive dentistry are considered basic approaches for the preservation of sound tooth structure. Moreover, conventional periodontal therapies do not always ensure predictable outcomes or completely restore the integrity of the periodontal ligament complex that has been lost due to periodontitis. Much effort and comprehensive research have been undertaken to mimic the natural development and biomineralization of teeth to regenerate and repair natural hard dental tissues and restore the integrity of the periodontium. Regeneration of the dentin-pulp tissue has faced several challenges, starting with the basic concerns of clinical applicability. Recent technologies and multidisciplinary approaches in tissue engineering and nanotechnology, as well as the use of modern strategies for stem cell recruitment, synthesis of effective biodegradable scaffolds, molecular signaling, gene therapy, and 3D bioprinting, have resulted in impressive outcomes that may revolutionize the practice of restorative dentistry. This Review covers the current approaches and technologies for remineralization, regeneration, and repair of natural tooth structure.
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Affiliation(s)
- Moataz El Gezawi
- Department of Restorative Dental Sciences, Imam Abdulrahman Bin Faisal University, Dammam 34221, Saudi Arabia
| | - Uta Christine Wölfle
- Department of Conservative Dentistry and Periodontology, University Hospital, LMU Munich, 80336 Munich, Germany
| | - Rasha Haridy
- Department of Clinical Dental Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia.,Department of Conservative Dentistry, Faculty of Oral and Dental Medicine, Cairo University, Cairo 11553, Egypt
| | - Riham Fliefel
- Experimental Surgery and Regenerative Medicine (ExperiMed), University Hospital, LMU Munich, 80336 Munich, Germany.,Department of Oral and Maxillofacial Surgery, University Hospital, LMU Munich, 80337 Munich, Germany.,Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Alexandria University, Alexandria 21526, Egypt
| | - Dalia Kaisarly
- Department of Conservative Dentistry and Periodontology, University Hospital, LMU Munich, 80336 Munich, Germany.,Biomaterials Department, Faculty of Oral and Dental Medicine, Cairo University, Cairo 11553, Egypt
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142
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Chakrabarti U, Paoli R, Chatterjee S, Megaridis CM. Importance of Body Stance in Fog Droplet Collection by the Namib Desert Beetle. Biomimetics (Basel) 2019; 4:biomimetics4030059. [PMID: 31466234 PMCID: PMC6784302 DOI: 10.3390/biomimetics4030059] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/08/2019] [Accepted: 08/19/2019] [Indexed: 11/16/2022] Open
Abstract
The fog-basking behavior of the Onymacris unguicularis, a beetle species living in the coastal regions of the Namibian desert, has recently caught the attention of the engineering community, as suggesting a viable biomimetic approach to address the problem of harvesting water in arid regions of the globe. Previous research has focused on observation and analysis of the beetle’s elytron properties and how these affect fog-collection rates. The head stance taken by the Onymacris unguicularis when fog basking is well documented. However, how this stance affects droplet collection has not been studied up to now. The present paper addresses this problem from a computational fluid dynamics perspective, where three-dimensional numerical simulations are used to characterize the fog flow properties around a simplified geometry mimicking the beetle’s body. The simulations employ two-way coupling between the gas flow and the dispersed fog phase to account for feedback effects of fog droplets on the carrier fluid (air), and assume that droplets are captured after hitting the elytron surface. The study considers several combinations of free-stream velocity and droplet volume fraction. The analysis reveals that there is a range of head-stance angles, corresponding to an inclination of the beetle between 35 deg and 45 deg with respect to the horizon, that maximizes water collection on the beetle’s back, in qualitative agreement with observations in nature and laboratory experiments. A rationale is proposed to explain this phenomenon, finding that the specific head stance corresponds to the maximum residence time of fluid particles above the beetle’s elytron surface. This, in turn, designates the maximum likelihood for water droplets to be captured in the boundary layer developing over the beetle and subsequently hit the surface where they get captured. The results reveal the importance of the fluid flow pattern around the beetle’s body in addition to the microphysical properties of the elytron when reliable predictions of the water droplet collection efficiency are sought.
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Affiliation(s)
- Unmeelan Chakrabarti
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Roberto Paoli
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA.
- Computational Science Division and Leadership Computing Facility, Argonne National Laboratory, Lemont, IL 60439, USA.
| | - Souvick Chatterjee
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA
| | - Constantine M Megaridis
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60607, USA.
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143
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Zahid M, Mazzon G, Athanassiou A, Bayer IS. Environmentally benign non-wettable textile treatments: A review of recent state-of-the-art. Adv Colloid Interface Sci 2019; 270:216-250. [PMID: 31277037 DOI: 10.1016/j.cis.2019.06.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/28/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023]
Abstract
Among superhydrophobic materials, non-wettable textiles are probably the ones that come in contact or interact with the human body most frequently. Hence, textile treatments for water or oil repellency should be non-toxic, biocompatible, and comply with stringent health standards. Moreover, considering the volume of the worldwide textile industry, these treatments should be scalable, sustainable, and eco-friendly. Due to this awareness, more and more non-wettable textile treatments with eco-friendly processes and green or non-toxic chemicals are being adopted and reported. Although fluorinated alkylsilanes or fluorinated polymers with C8 chemistry (with ≥ 8 fluorinated carbon atoms) are the best performing materials to render textiles water or oil repellent, they pose substantial health and environmental problems and are being banned. For this reason, water/solvent-borne, C8-free vehicles for non-wettable treatment formulations are probably the only ones that can have commercialization prospects. Hence, researchers have come up with a variety of new, non-toxic, green formulations and materials to render fabrics liquid repellent that constitute the focus of this review paper. As such, this review article discusses and summarizes recent developments and techniques on various sustainable superhydrophobic treatments for textiles, with comparable performance and durability to formulations based on fluorinated C8 compounds. The current state-of-the-art technologies, potential commercialization prospects, and relevant limitations are discussed and summarized with examples. The review also attempts to indicate promising future strategies and new materials that can transform the process for non-wettable textiles into an all-sustainable technology.
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Affiliation(s)
- Muhammad Zahid
- Smart Materials, Istituto Italiano di Technologia, Via Morego, 30, 16163 Genova, Italy.
| | - Giulia Mazzon
- Smart Materials, Istituto Italiano di Technologia, Via Morego, 30, 16163 Genova, Italy; Dipartimento di Scienze Ambientali, Informatica e Statistica (DAIS), Università Ca' Foscari, Dorsoduro 3246, 30123 Venezia, Italy
| | | | - Ilker S Bayer
- Smart Materials, Istituto Italiano di Technologia, Via Morego, 30, 16163 Genova, Italy.
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144
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Zhang H, Zeng H, Priimagi A, Ikkala O. Programmable responsive hydrogels inspired by classical conditioning algorithm. Nat Commun 2019; 10:3267. [PMID: 31332196 PMCID: PMC6646376 DOI: 10.1038/s41467-019-11260-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 06/26/2019] [Indexed: 01/19/2023] Open
Abstract
Living systems have inspired research on non-biological dynamic materials and systems chemistry to mimic specific complex biological functions. Upon pursuing ever more complex life-inspired non-biological systems, mimicking even the most elementary aspects of learning is a grand challenge. We demonstrate a programmable hydrogel-based model system, whose behaviour is inspired by associative learning, i.e., conditioning, which is among the simplest forms of learning. Algorithmically, associative learning minimally requires responsivity to two different stimuli and a memory element. Herein, nanoparticles form the memory element, where a photoacid-driven pH-change leads to their chain-like assembly with a modified spectral behaviour. On associating selected light irradiation with heating, the gel starts to melt upon the irradiation, originally a neutral stimulus. A logic diagram describes such an evolution of the material response. Coupled chemical reactions drive the system out-of-equilibrium, allowing forgetting and memory recovery. The findings encourage to search non-biological materials towards associative and dynamic properties. Living systems inspired research on systems chemistry to mimic specific complex biological functions, but mimicking even the most elementary aspects of learning is a grand challenge. Here the authors demonstrate a programmable hydrogel-based model system, whose behaviour is inspired by associative learning.
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145
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Biddle LE, Dickinson AM, Broughton RE, Gray LA, Bennett SL, Goodman AM, Deeming DC. Construction materials affect the hydrological properties of bird nests. J Zool (1987) 2019. [DOI: 10.1111/jzo.12713] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L. E. Biddle
- Joseph Banks Laboratories School of Life Sciences University of Lincoln Lincoln UK
| | - A. M. Dickinson
- Joseph Banks Laboratories School of Life Sciences University of Lincoln Lincoln UK
| | - R. E. Broughton
- Joseph Banks Laboratories School of Life Sciences University of Lincoln Lincoln UK
| | - L. A. Gray
- Joseph Banks Laboratories School of Life Sciences University of Lincoln Lincoln UK
| | - S. L. Bennett
- Joseph Banks Laboratories School of Life Sciences University of Lincoln Lincoln UK
| | - A. M. Goodman
- Joseph Banks Laboratories School of Life Sciences University of Lincoln Lincoln UK
| | - D. C. Deeming
- Joseph Banks Laboratories School of Life Sciences University of Lincoln Lincoln UK
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146
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Nishino T, Tanigawa H, Sekiguchi A. Oil Repellent Evaluation Using Resonance Principle. J PHOTOPOLYM SCI TEC 2019. [DOI: 10.2494/photopolymer.32.661] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tomoki Nishino
- College of Science and Engineering , Ritsumeikan University
| | - Hiroshi Tanigawa
- The Research Organization of Science and Technology, Ritsumeikan University
| | - Atsushi Sekiguchi
- The Research Organization of Science and Technology, Ritsumeikan University
- Litho Tech Japan Corporation
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147
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Nishino T, Tanigawa H, Sekiguchi A, Mayama H. Evaluation of Oil Repellent Effect by Metamaterial Structure. J PHOTOPOLYM SCI TEC 2019. [DOI: 10.2494/photopolymer.32.383] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tomoki Nishino
- College of Science and Engineering, Ritsumeikan University
| | - Hiroshi Tanigawa
- The Research Organization of Science and Technology, Ritsumeikan University
| | - Atsushi Sekiguchi
- The Research Organization of Science and Technology, Ritsumeikan University
- Litho Tech Japan Corporation
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148
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Kim S, Korolovych VF, Weissburg MJ, Tsukruk VV. Morphology and Surface Properties of Roach Water Transport Arrays. ACS APPLIED BIO MATERIALS 2019; 2:2650-2660. [PMID: 35030719 DOI: 10.1021/acsabm.9b00318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We report on morphological studies of wharf roaches, Ligia exotica, which can passively absorb and transport water through the microscopic protrusions on their legs. We systematically investigated the geometrical variables of the protrusions on each podite of legs to reveal a particularized structural complexity. For the morphological analysis, each podite was split into nine different zones by grouping the protrusions with similar shapes and organization. The protrusions are shown to possess three different types of shapes located on each specific zone of the podite. In addition, the nanoscale surface morphologies of the protrusions on the wharf roach legs were probed by using atomic force microscopy, and the surface properties of the hairy arrays were determined for identifying the localized hydrophobicity distribution. The protrusion surface possessed a nanoscale periodic patterned texture, and both the valley and ridges of a periodic pattern on the protrusion surface exhibited an identical low surface energy. We suggest that the structural morphologies and distinct hydrophobicity of the protrusions can be critical in determining the directional wettability of an entire leg and important for designing a sturdy water transport and passive water-absorbing system without external energy consumption.
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Affiliation(s)
- Sunghan Kim
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States.,School of Mechanical Engineering, Chung-Ang University, Seoul 06974, South Korea
| | - Volodymyr F Korolovych
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Marc J Weissburg
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
| | - Vladimir V Tsukruk
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
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149
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Grosjean S, Wawryszyn M, Mutlu H, Bräse S, Lahann J, Theato P. Soft Matter Technology at KIT: Chemical Perspective from Nanoarchitectures to Microstructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806334. [PMID: 30740772 DOI: 10.1002/adma.201806334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 10/24/2018] [Indexed: 06/09/2023]
Abstract
Bioinspiration has emerged as an important design principle in the rapidly growing field of materials science and especially its subarea, soft matter science. For example, biological cells form hierarchically organized tissues that not only are optimized and designed for durability, but also have to adapt to their external environment, undergo self-repair, and perform many highly complex functions. Being able to create artificial soft materials that mimic those highly complex functions will enable future materials applications. Herein, soft matter technologies that are used to realize bioinspired material structures are described, and potential pathways to integrate these into a comprehensive soft matter research environment are addressed. Solutions become available because soft matter technologies are benefitting from the synergies between organic synthesis, polymer chemistry, and materials science.
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Affiliation(s)
- Sylvain Grosjean
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces 3 (IBG 3), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Mirella Wawryszyn
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces 3 (IBG 3), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Hatice Mutlu
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces 3 (IBG 3), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Stefan Bräse
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces 3 (IBG 3), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Joerg Lahann
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces 3 (IBG 3), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Patrick Theato
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces 3 (IBG 3), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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150
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Korde JM, Kandasubramanian B. Fundamentals and Effects of Biomimicking Stimuli-Responsive Polymers for Engineering Functions. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00683] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jay M. Korde
- Biocomposite Laboratory, Department of Metallurgical & Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune-411025, India
| | - Balasubramanian Kandasubramanian
- Biocomposite Laboratory, Department of Metallurgical & Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune-411025, India
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