131 results match your criteria Bioinspiration & Biomimetics[Journal]


A Prosthetic Shank With Adaptable Torsion Stiffness and Foot Alignment.

Front Neurorobot 2020 8;14:23. Epub 2020 May 8.

Institute for Mechatronic Systems, Mechanical Engineering, Technische Universität Darmstadt, Darmstadt, Germany.

Torsion adapters in lower limb prostheses aim to increase comfort, mobility and health of users by allowing rotation in the transversal plane. A preliminary study with two transtibial amputees indicated correlations between torsional stiffness and foot alignment to increase comfort and stability of the user depending on the gait situation and velocity. This paper presents the design and proof-of-concept of an active, bio-inspired prosthetic shank adapter and a novel approach to create a user-specific human-machine interaction through adapting the device's properties. Read More

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http://dx.doi.org/10.3389/fnbot.2020.00023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7225318PMC

Highly Reproducible, Bio-Based Slab Photonic Crystals Grown by Diatoms.

Adv Sci (Weinh) 2020 May 21;7(10):1903726. Epub 2020 Mar 21.

International Iberian Nanotechnology Laboratory Braga 4715-330 Portugal.

Slab photonic crystals (PhCs) are photonic structures used in many modern optical technologies. Fabrication of these components is costly and usually involves eco-unfriendly methods, requiring modern nanofabrication techniques and cleanroom facilities. This work describes that diatom microalgae evolved elaborate and highly reproducible slab PhCs in the girdle, a part of their silicon dioxide exoskeletons. Read More

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http://dx.doi.org/10.1002/advs.201903726DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7237861PMC

Design of tree-frog-inspired adhesives.

Integr Comp Biol 2020 May 15. Epub 2020 May 15.

Experimental Zoology Group, Wageningen University & Research, De Elst 1, 6708 WD Wageningen, The Netherlands.

The adhesive toe pads of tree frogs have inspired the design of various so-called 'smooth' synthetic adhesives for wet environments. However, these adhesives do not reach the attachment performance of their biological model in terms of contact formation, maintenance of attachment, and detachment. In tree frogs, attachment is facilitated by an interconnected ensemble of superficial and internal morphological components, which together form a functional unit. Read More

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http://dx.doi.org/10.1093/icb/icaa037DOI Listing

Surface morphology enhances deposition efficiency in biomimetic, wind-driven fog collection.

J R Soc Interface 2020 May 13;17(166):20200038. Epub 2020 May 13.

Department of Polymer Science, University of Akron, Akron, OH 44325, USA.

Passive interception of fog from the wind is an effective solution for accessing water in regions where fog is frequent and other sources scarce. A Namib Desert beetle is often cited as bioinspiration for further advancement, in a narrative which focuses on patterned wettability of its bumpy elytra as a means of transporting accumulated water from its back to its mouth. However, surface transport in fog collection is secondary to the role of the fluid dynamics of droplet deposition, in which inertial droplets migrate across diverging streamlines approaching an obstruction. Read More

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http://dx.doi.org/10.1098/rsif.2020.0038DOI Listing

Spontaneous transport of air bubbles on bioinspired superhydrophilic triangular patterns.

J Colloid Interface Sci 2020 May 4;575:399-405. Epub 2020 May 4.

Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics (NLBB), The Ohio State University, 201 W. 19th Avenue, Columbus, OH 43210-1142, USA. Electronic address:

Air bubbles are interfacial fluid dynamics phenomena in many natural and technological processes. The dynamics of air bubbles is of interest in many applications. In this study, to facilitate the transport of air bubbles, triangular patterns were used, inspired by conical spines of cactus, which develop Laplace pressure gradient. Read More

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http://dx.doi.org/10.1016/j.jcis.2020.04.124DOI Listing

Bioinspired hierarchical impact tolerant materials.

Bioinspir Biomim 2020 Apr 29. Epub 2020 Apr 29.

Production Engineering, Universidad EAFIT, Medellin, Antioquia, COLOMBIA.

The quest for new light-weight materials with superior mechanical properties is a goal of materials scientists and engineers worldwide. A promising route in this pursuit is drawing inspiration from Nature to design and develop materials with enhanced properties. By emulating the graded mineral content and hierarchical structure of fish scales of the Arapaima Gigas from the nano to macro scales, we were able to develop bioinspired laminated composites with improved impact resistance. Read More

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http://dx.doi.org/10.1088/1748-3190/ab8e9aDOI Listing

Anticandidal activity of synthetic peptides: Mechanism of action revealed by scanning electron and fluorescence microscopies and synergism effect with nystatin.

J Pept Sci 2020 Jun 18;26(6):e3249. Epub 2020 Mar 18.

Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, Brazil.

Candida albicans has emerged as a major public health problem in recent decades. The most important contributing factor is the rapid increase in resistance to conventional drugs worldwide. Synthetic antimicrobial peptides (SAMPs) have attracted substantial attention as alternatives and/or adjuvants in therapeutic treatments due to their strong activity at low concentrations without apparent toxicity. Read More

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http://dx.doi.org/10.1002/psc.3249DOI Listing

Frost-free zone on macrotextured surfaces.

Proc Natl Acad Sci U S A 2020 Mar 10;117(12):6323-6329. Epub 2020 Mar 10.

Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208;

Numerous studies have focused on designing functional surfaces that delay frost formation or reduce ice adhesion. However, solutions to the scientific challenges of developing antiicing surfaces remain elusive because of degradation such as mechanical wearing. Inspired by the discontinuous frost pattern on natural leaves, here we report findings on the condensation frosting process on surfaces with serrated structures on the millimeter scale, which is distinct from that on a conventional planar surface with microscale/nanoscale textures. Read More

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http://dx.doi.org/10.1073/pnas.1915959117DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7104305PMC

A Multi-Bioinspired Dual-Gradient Electrode for Microbubble Manipulation toward Controllable Water Splitting.

Adv Mater 2020 Apr 4;32(17):e1908099. Epub 2020 Mar 4.

State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China.

Clean energy generated from total water splitting is expected to be an affordable, sustainable, and reliable resource but it remains a challenge to gain pure fuel with a controllable pathway. Here, a simple and economical strategy that enables in situ separation of H /O product by manipulating the generated gas phases with the aid of multi-bioinspired electrodes is proposed. This versatile electrode is based on a Janus asymmetric foam with dual gradients, i. Read More

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http://dx.doi.org/10.1002/adma.201908099DOI Listing

Passive water harvesting by desert plants and animals: lessons from nature.

Philos Trans A Math Phys Eng Sci 2020 Mar 3;378(2167):20190444. Epub 2020 Feb 3.

Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics (NLBB), The Ohio State University, 201 West 19th Avenue, Columbus, OH 43210-1142, USA.

Fresh water sustains human life and is vital for human health. For some of the poorest countries, 1 in 10 people do not have access to safe and easily accessible water sources. Water consumption by man continues to grow with an increasing population. Read More

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http://dx.doi.org/10.1098/rsta.2019.0444DOI Listing

Versatile Macroscale Concentration Gradients of Nanoparticles in Soft Nanocomposites.

Small 2020 Feb 23;16(6):e1905192. Epub 2020 Jan 23.

Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700, Fribourg, Switzerland.

Nanocomposite materials benefit from the diverse physicochemical properties featured by nanoparticles, and the presence of nanoparticle concentration gradients can lend functions to macroscopic materials beyond the realm of classical nanocomposites. It is shown here that linearity and time-shift invariance obtained via the synergism of two independent physical phenomena-translational self-diffusion and shear-driven dispersion-may give access to an exceptionally high degree of flexibility in the design of scalable and programmable long-range concentration gradients of nanoparticles in solidifiable liquid matrices. Read More

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http://dx.doi.org/10.1002/smll.201905192DOI Listing
February 2020

Engineering Smart Nanofluidic Systems for Artificial Ion Channels and Ion Pumps: From Single-Pore to Multichannel Membranes.

Adv Mater 2020 Jan 3;32(4):e1904351. Epub 2019 Dec 3.

Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.

Biological ion channels and ion pumps with intricate ion transport functions widely exist in living organisms and play irreplaceable roles in almost all physiological functions. Nanofluidics provides exciting opportunities to mimic these working processes, which not only helps understand ion transport in biological systems but also paves the way for the applications of artificial devices in many valuable areas. Recent progress in the engineering of smart nanofluidic systems for artificial ion channels and ion pumps is summarized. Read More

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http://dx.doi.org/10.1002/adma.201904351DOI Listing
January 2020

Hybrid Jamming for Bioinspired Soft Robotic Fingers.

Soft Robot 2019 Nov 22. Epub 2019 Nov 22.

Department of Mechanical and Aerospace Engineering, Hong Kong University of Science and Technology, Kowloon, Hong Kong.

This article describes a novel design of bioinspired soft robotic fingers based upon hybrid jamming principle-integrated layer jamming and particle jamming. The finger combines a fiber-reinforced soft pneumatic actuator with a hybrid jamming substrate. Taking advantage of different characteristics of layer jamming and particle jamming, the substrate is designed with three chambers filled with layers (function as bones) and two chambers filled with particles (function as joints). Read More

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http://dx.doi.org/10.1089/soro.2019.0093DOI Listing
November 2019

Nature-Inspired Nacre-Like Composites Combining Human Tooth-Matching Elasticity and Hardness with Exceptional Damage Tolerance.

Adv Mater 2019 Dec 12;31(52):e1904603. Epub 2019 Nov 12.

Department of Materials Science and Engineering, University of California Berkeley, Berkeley, CA, 94720, USA.

Making replacements for the human body similar to natural tissue offers significant advantages but remains a key challenge. This is pertinent for synthetic dental materials, which rarely reproduce the actual properties of human teeth and generally demonstrate relatively poor damage tolerance. Here new bioinspired ceramic-polymer composites with nacre-mimetic lamellar and brick-and-mortar architectures are reported, which resemble, respectively, human dentin and enamel in hardness, stiffness, and strength and exhibit exceptional fracture toughness. Read More

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http://dx.doi.org/10.1002/adma.201904603DOI Listing
December 2019
17.493 Impact Factor

Designing bioinspired conical surfaces for water collection from condensation.

J Colloid Interface Sci 2020 Feb 18;560:138-148. Epub 2019 Oct 18.

Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics (NLBB), The Ohio State University, 201 W. 19th Avenue, Columbus, OH 43210-1142, USA. Electronic address:

In arid deserts, water supply is supplemented by water from fog and condensation. Once the droplets are collected, they are transported to a location where they are consumed or stored before they evaporate. Conical geometries or triangular patterns are known to create Laplace pressure gradient inside droplets which facilitates droplet transport. Read More

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http://dx.doi.org/10.1016/j.jcis.2019.10.059DOI Listing
February 2020

Quo vadis plant biomechanics: Old wine in new bottles or an up-and-coming field of modern plant science?

Am J Bot 2019 11 16;106(11):1399-1403. Epub 2019 Oct 16.

Plant Biomechanics Group, Botanic Garden, Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), Cluster of Excellence livMatS @ FIT, University of Freiburg, Freiburg, Germany.

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http://dx.doi.org/10.1002/ajb2.1371DOI Listing
November 2019

Macro-to-nanoscale investigation of wall-plate joints in the acorn barnacle Semibalanus balanoides: correlative imaging, biological form and function, and bioinspiration.

J R Soc Interface 2019 08 7;16(157):20190218. Epub 2019 Aug 7.

Advanced Imaging of Materials (AIM) Facility, College of Engineering, Swansea University, Swansea SA1 8EN, UK.

Correlative imaging combines information from multiple modalities (physical-chemical-mechanical properties) at various length scales (centimetre to nanometre) to understand the complex biological materials across dimensions (2D-3D). Here, we have used numerous coupled systems: X-ray microscopy (XRM), scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), optical light microscopy (LM) and focused ion beam (FIB-SEM) microscopy to ascertain the microstructural and crystallographic properties of the wall-plate joints in the barnacle Semibalanus balanoides. The exoskeleton is composed of six interlocking wall plates, and the interlocks between neighbouring plates (alae) allow barnacles to expand and grow while remaining sealed and structurally strong. Read More

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http://dx.doi.org/10.1098/rsif.2019.0218DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6731510PMC
August 2019
1 Read

Biohybrid Design Gets Personal: New Materials for Patient-Specific Therapy.

Adv Mater 2020 Apr 4;32(13):e1901969. Epub 2019 Jul 4.

Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 500 Main St., Cambridge, MA, 02142, USA.

Precision medicine requires materials and devices that can sense and adapt to dynamic physiological and pathological conditions. This motivates the design and manufacture of biohybrid materials that mimic the responsive behaviors demonstrated by natural biological systems. Two parallel approaches to biohybrid design are presented-biomimetics and biointegration. Read More

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http://dx.doi.org/10.1002/adma.201901969DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6942246PMC

Bioinspired Materials: From Living Systems to New Concepts in Materials Chemistry.

Materials (Basel) 2019 Jul 1;12(13). Epub 2019 Jul 1.

Department of Materials Science and Engineering (WW), Institute of Glass and Ceramics (WW3), Friedrich-Alexander University Erlangen-Nuremberg (FAU), Martensstrasse 5, D-91058 Erlangen, Germany.

Nature successfully employs inorganic solid-state materials (i.e., biominerals) and hierarchical composites as sensing elements, weapons, tools, and shelters. Read More

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http://dx.doi.org/10.3390/ma12132117DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6651889PMC

Bioinspired conical design for efficient water collection from fog.

Philos Trans A Math Phys Eng Sci 2019 Jul 10;377(2150):20190125. Epub 2019 Jun 10.

Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics (NLBB), The Ohio State University , 201 W. 19th Avenue, Columbus, OH 43210-1142 , USA.

Nature is known for using conical shapes to transport the collected water from fog for consumption or storage. The curvature gradient of the conical shape creates a Laplace pressure gradient in the water droplets which drives them towards the region of lower curvature. Linear cones with linearly increasing radii have been studied extensively. Read More

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http://dx.doi.org/10.1098/rsta.2019.0125DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6562354PMC
July 2019
8 Reads

Designing bioinspired coral-like structures using a templateless electropolymerization approach with a high water content.

Philos Trans A Math Phys Eng Sci 2019 Jul 10;377(2150):20190123. Epub 2019 Jun 10.

2 Université Côte d'Azur, NICE Lab, IMREDD , 61-63 Av. Simon Veil, 06200 Nice , France.

Here, with the aim of obtaining densely packed porous nanostructures of various shape using templateless electropolymerization in organic solvent (dichloromethane), original thieno[3,4- b]thiophene-based monomers with different substituents are studied. First of all, the adding of water in solution has a huge influence on the formation of porous structures because a much higher amount of gas (O and/or H) is released. Rigid substituents such as aromatic groups have a beneficial effect on the formation of nanotubular structures contrary to flexible ones such as alkyl chains. Read More

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http://dx.doi.org/10.1098/rsta.2019.0123DOI Listing
July 2019
14 Reads

Bioinspired oil-water separation approaches for oil spill clean-up and water purification.

Authors:
Bharat Bhushan

Philos Trans A Math Phys Eng Sci 2019 Jul 10;377(2150):20190120. Epub 2019 Jun 10.

Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics, The Ohio State University , 201 West 19th Ave., Columbus, OH 43210-1142 , USA.

Water contamination is one of the major environmental and natural resource concerns in the twenty-first century. Oil contamination can occur during operation of machinery, oil exploration and transportation, and due to operating environment. Oil spills occasionally occur during oil exploration and transportation. Read More

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http://dx.doi.org/10.1098/rsta.2019.0120DOI Listing
July 2019
17 Reads

Water droplet dynamics on bioinspired conical surfaces.

Philos Trans A Math Phys Eng Sci 2019 Jul 10;377(2150):20190118. Epub 2019 Jun 10.

Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics (NLBB), The Ohio State University , 201 W. 19th Avenue, Columbus, OH 43210 , USA.

Cacti use the Laplace pressure gradient due to conical geometry as a mechanism for collecting water from fog. Bioinspired surfaces using conical geometry can be developed for water collection from fog for human consumption. A systematic study is presented which investigates the dynamics of water droplets on a bioinspired conical surface. Read More

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http://dx.doi.org/10.1098/rsta.2019.0118DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6562357PMC
July 2019
16 Reads

Bioinspired water collection methods to supplement water supply.

Authors:
Bharat Bhushan

Philos Trans A Math Phys Eng Sci 2019 Jul 10;377(2150):20190119. Epub 2019 Jun 10.

Nanoprobe Laboratory for Bio and Nanotechnology and Biomimetics (NLBB), The Ohio State University , 201 W. 19th Avenue, Columbus, OH 43210-1142 , USA.

Fresh water sustains human life and is vital for human health. Water scarcity affects more than 40% of the global population and is projected to rise. For some of the poorest countries, 1 in 10 people do not have access to safe and easily accessible water sources. Read More

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http://dx.doi.org/10.1098/rsta.2019.0119DOI Listing
July 2019
9 Reads

Variation of (Moser, 1909) Elytra Nanostructurations and Their Impact on Wettability.

Biomimetics (Basel) 2018 Apr 4;3(2). Epub 2018 Apr 4.

NICE Lab, Université Côte d'Azur, Parc Valrose, 06100 Nice, France.

Among the different species of flower beetles, there is one of particular notoriety: the Goliath beetle. This large insect can grow up to 11 cm long and is well-known for its distinctive black and white shield. In this paper, we focus on a particular species: (Moser, 1909). Read More

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http://dx.doi.org/10.3390/biomimetics3020006DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6352665PMC
April 2018
1 Read

An Overview of Bioinspired and Biomimetic Self-Repairing Materials.

Biomimetics (Basel) 2019 Mar 20;4(1). Epub 2019 Mar 20.

Plant Biomechanics Group and Botanic Garden, University of Freiburg, Schänzlestr. 1, 79104 Freiburg, Germany.

During the 3.8 billion years of biological evolution, a multitude of functional principles has been developed in all kingdoms of life enabling the sealing and healing of diverse types of damage. Inspired by this treasure trove, biologists and engineers have become increasingly interested in learning from biological insights for the development of self-repairing materials. Read More

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https://www.mdpi.com/2313-7673/4/1/26
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http://dx.doi.org/10.3390/biomimetics4010026DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6477613PMC
March 2019
6 Reads

Bioinspiration in Fashion-A Review.

Authors:
Jane Wood

Biomimetics (Basel) 2019 Feb 12;4(1). Epub 2019 Feb 12.

Manchester Fashion Institute, Manchester Metropolitan University, Manchester M15 6BH, UK.

This paper provides an overview of the main technologies currently being investigated in the textile industry as alternatives to contemporary fashion fabrics. The present status of the textile industry and its impact on the environment is discussed, and the key drivers for change are highlighted. Historical use of bioinspiration in synthetic textiles is evaluated, with the impact of these developments on the fashion and apparel industries described. Read More

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http://dx.doi.org/10.3390/biomimetics4010016DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6477616PMC
February 2019
1 Read

Mesocarp of Brazil nut (Bertholletia excelsa) as inspiration for new impact resistant materials.

Bioinspir Biomim 2019 07 3;14(5):056002. Epub 2019 Jul 3.

Federal University of São Carlos (UFSCar), Graduate Program in Materials Science and Engineering (PPG-CEM), São Carlos, SP, Brazil. Author to whom correspondence should be addressed.

Aiming to produce bioinspired impact and puncture resistant materials, the mesocarp of the Brazil nut (Bertholletia excelsa) was characterized. The mesocarp composition was investigated by chemical extraction and its microstructure was analyzed by optical microscopy and microtomography (microCT). A compression test evaluated the force needed to open the mesocarp shell. Read More

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http://dx.doi.org/10.1088/1748-3190/ab2298DOI Listing
July 2019
1 Read

Optimization of bioinspired conical surfaces for water collection from fog.

J Colloid Interface Sci 2019 Sep 6;551:26-38. Epub 2019 May 6.

Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics (NLBB), The Ohio State University, 201 W. 19th Avenue, Columbus, OH 43210-1142, USA. Electronic address:

Desert beetles, desert grass and cacti use different mechanisms to transport the collected water. It is transported to a location where it is consumed or stored. The mechanisms include heterogeneous wettability, grooves, and Laplace pressure gradient due to conical geometry, respectively. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00219797193055
Publisher Site
http://dx.doi.org/10.1016/j.jcis.2019.05.015DOI Listing
September 2019
21 Reads

Composite Nanostructures and Adhesion Analysis of Natural Plant Hydrogels Investigated by Atomic Force Microscopy.

IEEE Trans Nanobioscience 2019 07 12;18(3):448-455. Epub 2019 Apr 12.

Hydrogels designed by biomimetism and bioinspiration have been considered as a promising biomaterial for biomedical applications due to their biocompatible characteristics. Though biomimetic or bioinspired hydrogels have been widely studied by biochemical analysis, so far the detailed organizations and properties of native natural hydrogels are still not fully understood. The advent of atomic force microscopy (AFM) provides a potent tool for probing the biological samples in their living states with nanometer spatial resolution, which offers new possibilities for addressing the biological and material issues at the nanoscale. Read More

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http://dx.doi.org/10.1109/TNB.2019.2911044DOI Listing
July 2019
3 Reads

Lessons from nature for green science and technology: an overview and bioinspired superliquiphobic/philic surfaces.

Authors:
Bharat Bhushan

Philos Trans A Math Phys Eng Sci 2019 Feb;377(2138):20180274

Nanoprobe Laboratory for Bio- and Nanotechnology and Biomimetics, The Ohio State University , Columbus, OH 43210-1142 , USA.

Nature has developed materials, objects and processes that function from the macroscale to the nanoscale. The emerging field of biomimetics allows one to mimic biology or nature to develop nanomaterials, nanodevices and processes which provide desirable properties. The biologically inspired materials and structured surfaces are being explored for various commercial applications. Read More

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http://www.royalsocietypublishing.org/doi/10.1098/rsta.2018.
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http://dx.doi.org/10.1098/rsta.2018.0274DOI Listing
February 2019
19 Reads

Designing bioinspired surfaces for water collection from fog.

Philos Trans A Math Phys Eng Sci 2019 Feb;377(2138):20180269

Nanoprobe Laboratory for Bio- & Nanotechnology and Biomimetics (NLBB), The Ohio State University , 201 W. 19th Avenue, Columbus, OH 43210-1142 , USA.

A systematic study is presented on various water collectors, bioinspired by desert beetles, desert grass and cacti. Three water collecting mechanisms including heterogeneous wettability, grooved surfaces, and Laplace pressure gradient, were investigated on flat, cylindrical, conical surfaces, and conical array. It is found that higher water repellency in flat surfaces results in higher water collection rate and inclination angle (with respect to the vertical axis) has little effect. Read More

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http://dx.doi.org/10.1098/rsta.2018.0269DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6335284PMC
February 2019
6 Reads

Spatially variant microstructured adhesive with one-way friction.

J R Soc Interface 2019 01;16(150):20180705

2 Department of Mechanical Engineering, University of California , Santa Barbara, CA 93106 , USA.

Surface microstructures in nature enable diverse and intriguing properties, from the iridescence of butterfly wings to the hydrophobicity of lotus leaves to the controllable adhesion of gecko toes. Many artificial analogues exist; however, there is a key characteristic of the natural materials that is largely absent from the synthetic versions-spatial variation. Here we show that exploiting spatial variation in the design of one class of synthetic microstructure, gecko-inspired adhesives, enables one-way friction, an intriguing property of natural gecko adhesive. Read More

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http://www.royalsocietypublishing.org/doi/10.1098/rsif.2018.
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http://dx.doi.org/10.1098/rsif.2018.0705DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6364657PMC
January 2019
45 Reads

Shear-Induced β-Crystallite Unfolding in Condensed Phase Nanodroplets Promotes Fiber Formation in a Biological Adhesive.

ACS Nano 2019 05 4;13(5):4992-5001. Epub 2019 Apr 4.

Department of Biomaterials , Max Planck Institute of Colloids and Interfaces , Research Campus Golm, D-14424 Potsdam , Germany.

Natural materials provide an increasingly important role model for the development and processing of next-generation polymers. The velvet worm Euperipatoides rowelli hunts using a projectile, mechanoresponsive adhesive slime that rapidly and reversibly transitions into stiff glassy polymer fibers following shearing and drying. However, the molecular mechanism underlying this mechanoresponsive behavior is still unclear. Read More

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http://dx.doi.org/10.1021/acsnano.9b00857DOI Listing
May 2019
4 Reads

Heart valve inspired and multi-stream aortic cannula: Novel designs for cardiopulmonary bypass improvement in neonates.

Artif Organs 2019 Oct 29;43(10):E233-E248. Epub 2019 Apr 29.

Department of Mechanical Engineering, Koç University, Sarıyer, Istanbul, Turkey.

In a typical open-heart surgery, the blood flow through the aortic cannula is a critical element of the cardiopulmonary bypass (CPB) procedure. Especially for the neonatal and pediatric CPB flow conditions, the need for small hydraulic diameter and large blood flow results confined turbulent jet flow regimes that exacerbate blood damage and platelet activation. Simultaneously, the confined jet wake leads to complex stagnation and recirculating flows that cause considerable thrombosis, blood, and endothelial cell damage through the aorta. Read More

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http://dx.doi.org/10.1111/aor.13462DOI Listing
October 2019
3 Reads

Ecological and Societal Services of Aquatic Diptera.

Insects 2019 Mar 14;10(3). Epub 2019 Mar 14.

Department of Entomology, Iowa State University, 2310 Pammel Drive, 401 Science II, Ames, IA 50011-3222, USA.

More than any other group of macro-organisms, true flies (Diptera) dominate the freshwater environment. Nearly one-third of all flies-roughly 46,000 species-have some developmental connection with an aquatic environment. Their abundance, ubiquity, and diversity of adaptations to the aquatic environment position them as major drivers of ecosystem processes and as sources of products and bioinspiration for the benefit of human society. Read More

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http://dx.doi.org/10.3390/insects10030070DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6468872PMC
March 2019
1 Read

A review of beetle hindwings: Structure, mechanical properties, mechanism and bioinspiration.

J Mech Behav Biomed Mater 2019 06 1;94:63-73. Epub 2019 Mar 1.

Nanoprobe Laboratory for Bio, & Nanotechnology and Biomimetics (NLB2); The Ohio State University, 201 W. 19th Avenue, Columbus, OH 43210-1142, USA. Electronic address:

Insects have a small mass and size and a low flying Reynolds number. Consequently, they serve as an excellent bionic representation of a micro air vehicle (MAV). Coleoptera (popularly referred to as beetles) have different characteristics from other flying insects. Read More

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http://dx.doi.org/10.1016/j.jmbbm.2019.02.031DOI Listing
June 2019
3 Reads

Ecosystem Function and Services of Aquatic Predators in the Anthropocene.

Trends Ecol Evol 2019 04 8;34(4):369-383. Epub 2019 Mar 8.

Fish Ecology and Conservation Physiology Laboratory, Carleton University, Ottawa, ON K1S 5B6, Canada. Electronic address: https://twitter.com/Cooke.

Arguments for the need to conserve aquatic predator (AP) populations often focus on the ecological and socioeconomic roles they play. Here, we summarize the diverse ecosystem functions and services connected to APs, including regulating food webs, cycling nutrients, engineering habitats, transmitting diseases/parasites, mediating ecological invasions, affecting climate, supporting fisheries, generating tourism, and providing bioinspiration. In some cases, human-driven declines and increases in AP populations have altered these ecosystem functions and services. Read More

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http://dx.doi.org/10.1016/j.tree.2019.01.005DOI Listing
April 2019
4 Reads

Hierarchical nanomaterials via biomolecular self-assembly and bioinspiration for energy and environmental applications.

Nanoscale 2019 Mar;11(10):4147-4182

Faculty of Production Engineering and Center for Environmental Research and Sustainable technology (UFT), University of Bremen, D-28359 Bremen, Germany.

Bioinspired synthesis offers potential green strategies to build highly complex nanomaterials by utilizing the unique nanostructures, functions, and properties of biomolecules, in which the biomolecular recognition and self-assembly processes play important roles in tailoring the structures and functions of bioinspired materials. Further understanding of biomolecular self-assembly for inspiring the formation and assembly of nanoparticles would promote the design and fabrication of functional nanomaterials for various applications. In this review, we focus on recent advances in bioinspired synthesis and applications of hierarchical nanomaterials based on biomolecular self-assembly. Read More

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http://dx.doi.org/10.1039/c9nr00218aDOI Listing
March 2019
7 Reads

Natural History Collections as Inspiration for Technology.

Bioessays 2019 02;41(2):e1700238

Dr. J. A. Watson, Dr. G. S. Watson, School of Science and Engineering, University of the Sunshine Coast, Fraser Coast, Hervey Bay, QL, 4655, Australia.

Living organisms are the ultimate survivalists, having evolved phenotypes with unprecedented adaptability, ingenuity, resourcefulness, and versatility compared to human technology. To harness these properties, functional descriptions and design principles from all sources of biodiversity information must be collated - including the hundreds of thousands of possible survival features manifest in natural history museum collections, which represent 12% of total global biodiversity. This requires a consortium of expert biologists from a range of disciplines to convert the observations, data, and hypotheses into the language of engineering. Read More

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http://dx.doi.org/10.1002/bies.201700238DOI Listing
February 2019
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Soft Matter Technology at KIT: Chemical Perspective from Nanoarchitectures to Microstructures.

Adv Mater 2019 Jun 10;31(26):e1806334. Epub 2019 Feb 10.

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.

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. Read More

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http://dx.doi.org/10.1002/adma.201806334DOI Listing
June 2019
15 Reads

The case for close biological realism when attempting biomimicry: Comment on "Does being multi-headed make you better at solving problems? A survey of Physarum-based models and computations" by C. Gao et al.

Authors:
Chris R Reid

Phys Life Rev 2019 07 28;29:35-37. Epub 2019 Jan 28.

Department of Biological Sciences, Macquarie University, Sydney, NSW 2109, Australia. Electronic address:

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http://dx.doi.org/10.1016/j.plrev.2019.01.007DOI Listing
July 2019
2 Reads

Adaptive structural reorientation: Developing extraordinary mechanical properties by constrained flexibility in natural materials.

Acta Biomater 2019 03 11;86:96-108. Epub 2019 Jan 11.

Department of Materials Science and Engineering, University of California Berkeley, Berkeley, CA 94720, USA. Electronic address:

Seeking strategies to enhance the overall combinations of mechanical properties is of great significance for engineering materials, but still remains a key challenge because many of these properties are often mutually exclusive. Here we reveal from the perspective of materials science and mechanics that adaptive structural reorientation during deformation, which is an operating mechanism in a wide variety of composite biological materials, functions more than being a form of passive response to allow for flexibility, but offers an effective means to simultaneously enhance rigidity, robustness, mechanical stability and damage tolerance. As such, the conflicts between different mechanical properties can be "defeated" in these composites merely by adjusting their structural orientation. Read More

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http://dx.doi.org/10.1016/j.actbio.2019.01.010DOI Listing
March 2019
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Triple-Bioinspired Burying/Crosslinking Interfacial Coassembly Strategy for Layer-by-Layer Construction of Robust Functional Bioceramic Self-Coatings for Osteointegration Applications.

ACS Appl Mater Interfaces 2019 Jan 17;11(4):4447-4469. Epub 2019 Jan 17.

Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , China.

Coating bioceramics of inherent bioactivity onto biometallic implants is a straightforward yet promising solution to address poor osteointegration of the latter. One step further, it would be a nontrivial accomplishment to develop a mild, cheap, and universal route to firmly stabilizing, in principle, any ceramics onto any implant substrate, while imparting expectedly versatile biofunctional performances. Herein, we describe a triple-bioinspired burying/cross-linking interfacial coassembly strategy for enabling such ceramic coatings, which ingeniously fuses bioinspiration from sea rocks (burying assisted particle immobilization), marine mussels (universal adhesion and versatile chemical reactivity), and reef-building oysters (cross-linking rendered cohesion). Read More

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http://dx.doi.org/10.1021/acsami.8b20429DOI Listing
January 2019
4 Reads

Processed eggshell membrane powder: Bioinspiration for an innovative wound healing product.

Mater Sci Eng C Mater Biol Appl 2019 Feb 24;95:192-203. Epub 2018 Oct 24.

Department of Cellular and Molecular Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada; Department of Innovation in Medical Education, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1G 5Z3, Canada.. Electronic address:

Non-healing wounds are a major health problem worldwide and a significant cause of morbidity and mortality. Effective treatments for acute and chronic skin wounds are the focus of intensive research. Eggshell membrane (ESM) is a natural proteinaceous by-product of the food industry and is suitable for biomedical applications. Read More

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http://dx.doi.org/10.1016/j.msec.2018.10.054DOI Listing
February 2019
6 Reads

Looking deep into nature: A review of micro-computed tomography in biomimicry.

Acta Biomater 2019 02 10;85:27-40. Epub 2018 Dec 10.

Laboratory of Functional Morphology, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.

Albert Einstein once said "look deep into nature, and then you will understand everything better". Looking deep into nature has in the last few years become much more achievable through the use of high-resolution X-ray micro-computed tomography (microCT). The non-destructive nature of microCT, combined with three-dimensional visualization and analysis, allows for the most complete internal and external "view" of natural materials and structures at both macro- and micro-scale. Read More

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http://dx.doi.org/10.1016/j.actbio.2018.12.014DOI Listing
February 2019
27 Reads

Designed for resistance to puncture: The dynamic response of fish scales.

J Mech Behav Biomed Mater 2019 02 2;90:451-459. Epub 2018 Nov 2.

Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA; Department of Mechanical Engineering, University of Washington Seattle, WA, USA. Electronic address:

Natural dermal armors are serving as a source of inspiration in the pursuit of "next-generation" structural materials. Although the dynamic strain response of these materials is arguably the most relevant to their performance as armors, limited work has been performed in this area. Here, uniaxial tension and transverse puncture tests were performed on specimens obtained from the scales of Asian carp over strain rates spanning seven decades, from 10 to 10 s. Read More

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http://dx.doi.org/10.1016/j.jmbbm.2018.10.037DOI Listing
February 2019
4 Reads

Friction reduction through biologically inspired scale-like laser surface textures.

Beilstein J Nanotechnol 2018 26;9:2561-2572. Epub 2018 Sep 26.

Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany.

Reducing friction forces is a major challenge in many engineering applications involving moving parts. For the past 50 years, the morphological texturing of surfaces for improving tribological properties has been investigated. Only recently, the application of biologically inspired surface features, like scales found on lizards and snakes, has come to the attention of tribologists. Read More

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http://dx.doi.org/10.3762/bjnano.9.238DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6178304PMC
September 2018
3 Reads

Tackling the Concept of Symbiotic Implantable Medical Devices with Nanobiotechnologies.

Biotechnol J 2018 Dec 20;13(12):e1800102. Epub 2018 Nov 20.

Univverity Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, F-38000 Grenoble, France.

This review takes an approach to implanted medical devices that considers whether the intention of the implanted device is to have any communication of energy or materials with the body. The first part describes some specific examples of three different classes of implants, analyzed with regards to the type of signal sent to cells. Through several examples, the authors describe that a one way signaling to the body leads to encapsulation or degradation. Read More

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http://doi.wiley.com/10.1002/biot.201800102
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http://dx.doi.org/10.1002/biot.201800102DOI Listing
December 2018
14 Reads

Hydration-induced nano- to micro-scale self-recovery of the tooth enamel of the giant panda.

Acta Biomater 2018 11 28;81:267-277. Epub 2018 Sep 28.

Department of Materials Science and Engineering, University of California Berkeley, Berkeley, CA 94720, USA. Electronic address:

The tooth enamel of vertebrates comprises a hyper-mineralized bioceramic, but is distinguished by an exceptional durability to resist impact and wear throughout the lifetime of organisms; however, enamels exhibit a low resistance to the initiation of large-scale cracks comparable to that of geological minerals based on fracture mechanics. Here we reveal that the tooth enamel, specifically from the giant panda, is capable of developing durability through counteracting the early stage of damage by partially recovering its innate geometry and structure at nano- to micro- length-scales autonomously. Such an attribute results essentially from the unique architecture of tooth enamel, specifically the vertical alignment of nano-scale mineral fibers and micro-scale prisms within a water-responsive organic-rich matrix, and can lead to a decrease in the dimension of indent damage in enamel introduced by indentation. Read More

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http://dx.doi.org/10.1016/j.actbio.2018.09.053DOI Listing
November 2018
10 Reads
6.030 Impact Factor