Biomechanical characterization of spider webs

Das, Rakesh; Kumar, Amit; Patel, Anita; Vijay, Sahil; Saurabh, Shashank; Kumar, Navin

doi:10.1016/j.jmbbm.2016.12.008

Cited by 27 publications

(18 citation statements)

References 45 publications

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“…The nanoindentation instrument was employed for quasi-static nanomechanical property measurements (elastic modulus and hardness) of stingers 6 , 7 . A total of five (5) samples of both wasp and honeybee stingers were measured.…”

Section: Methodsmentioning

confidence: 99%

Biomechanical Evaluation of Wasp and Honeybee Stingers

Das

Yadav

Sihota

et al. 2018

Sci Rep

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In order to design a painless and mechanically durable micro syringe-needle system for biomedical applications, the study of insect stingers is of interest because of their elegant structures and functionalities. In the present work, the structure, mechanical properties and the mechanical behavior during insertion of wasp and honeybee stingers have been investigated. The non-invasive imaging tool, micro-computed tomography has been employed to reveal the 3D-structures of wasp and honeybee stingers. A quasi-static nanoindentation instrument was used to measure the nanomechanical properties. Both wasp and honeybee stingers have graded mechanical properties, decreasing along their longitudinal direction starting from the base. The computed tomography images and the measured material properties from nanoindentation were fed into a computational framework to determine the mechanical behavior of the stingers during penetration. The computation results predicted the penetration angle of +10° for the wasp stinger and −6° for the honeybee stinger, which mimics the practical insertion mechanism of both stingers. Based on this understanding, a wasp and honeybee stringer inspired micro syringe-needle design has also been proposed.

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Section: Methodsmentioning

confidence: 99%

Biomechanical Evaluation of Wasp and Honeybee Stingers

Das

Yadav

Sihota

et al. 2018

Sci Rep

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“…; Das et al . ). Advantages of use of spider webs as indicators are as follows: low cost of sample collections, sheltered location of webs protecting them from damage by weather conditions, and ease of sample collection (Jung et al ., ; Rybak & Olejniczak ).…”

Section: Introductionmentioning

confidence: 97%

“…In recent times, spider webs have gained prominence as indicators of air quality because of their characteristic properties. These properties include their capability to capture airborne particulates, high abundance, existing diversity, convenient usage and climate independence (Gollan et al 2010;Ossamy et al 2016;Das et al 2017). Advantages of use of spider webs as indicators are as follows: low cost of sample collections, sheltered location of webs protecting them from damage by weather conditions, and ease of sample collection (Jung et al, 2005;Rybak & Olejniczak 2014).…”

Section: Introductionmentioning

confidence: 99%

Use of spider webs as indicators of air quality assessment of Lahore City

Tahir

Aamir

Nadeem

2017

Water & Environment J

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High level of heavy metal contaminants in air is known to cause serious health problems if remained unchecked for a long period of time. Anthropogenic activities such as vehicular emissions and number of industries are responsible for increasing the level of heavy metals. The aim of the present study was to biologically monitor the level of heavy metal contamination by spider webs. These sites were selected based on variable traffic volume and number of industries. Atomic absorption spectrometry (AAS) was used for the analysis of metal pollution content. The study determined that the level of heavy metals at the selected sampling sites were several folds higher than that at the control site and in previously reported literature. Pb was determined to be the most abundant heavy metal, while Thokar Niaz Baig was reported as the most contaminated site. These elevated levels of metal contaminants are associated with heavy traffic flow, number of industries and constructional activities in the respective areas.

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“…Spider dragline silk has been fascinating human-being for thousands of years due to its excellent mechanical properties [1][2][3][4][5][6][7][8][9][10][11][12], and it is a source for biomaterials [13][14][15][16] for tissue engineering applications [17][18][19], and many methods have been proposed to produce artificial fibers mimicking the natural silks [20,21]. The classical approach is to use spider silk proteins to fabricate nanofibers by the electrospinning, though some properties can be enhanced, but it is far behind the natural silks.…”

Section: Introductionmentioning

confidence: 99%