Second-order nonlinear optical microscopy of spider silk
@article{Zhao2017SecondorderNO, title={Second-order nonlinear optical microscopy of spider silk}, author={Yue Zhao and Khuat Thi Thu Hien and Goro Mizutani and Harvey Rutt}, journal={Applied Physics B}, year={2017}, volume={123}, pages={1-8} }
Asymmetric $$\upbeta $$β-sheet protein structures in spider silk should induce nonlinear optical interaction such as second harmonic generation (SHG) which is experimentally observed for a radial line and dragline spider silk using an imaging femtosecond laser SHG microscope. By comparing different spider silks, we found that the SHG signal correlates with the existence of the protein $$\upbeta $$β-sheets. Measurements of the polarization dependence of SHG from the dragline indicated that the…
14 Citations
Observation of spider silk by femtosecond pulse laser second harmonic generation microscopy
- PhysicsSurface and Interface Analysis
- 2018
An asymmetric β‐sheet structure of spider silk is said to induce optical second harmonic generation. In this paper, using an in‐house nonscanning type femtosecond pulse laser second harmonic…
Sum frequency generation spectroscopy study of the attachment disc of spider's pyriform silk
- Physics
- 2020
The pyriform silk molecular orientation of the attachment disc of a spider was studied using infrared-visible vibrational sum frequency generation (SFG) spectroscopy. When a spider secretes…
Sum frequency generation spectroscopy of the attachment disc of a spider.
- PhysicsSpectrochimica acta. Part A, Molecular and biomolecular spectroscopy
- 2021
Interplay between Light and Functionalized Silk Fibroin and Applications
- Materials Science, MedicineiScience
- 2020
Active optics with silk
- PhysicsFrontiers in Optics and Photonics
- 2020
Abstract Optical devices have been traditionally fabricated using materials whose chemical and physical properties are finely tuned to perform a specific, single, and often static function, whereby…
Recent Advances in Development of Functional Spider Silk-Based Hybrid Materials
- Medicine, Materials ScienceFrontiers in Chemistry
- 2020
This review aims to provide a critical summary of up-to-date fabrication methods of spider silk-based organic-inorganic hybrid materials using both natural and bioengineered spider silk proteins blended with inorganic nanoparticles.
Analysis the water in aggregate glue droplets of spider orb web by TOF‐SIMS
- BiologySurface and Interface Analysis
- 2020
It is found that the matrix effect of glycoprotein may cause ion suppression of water in aggregate glue droplets in orb‐weaver spiders, and after losing salts, water not only ceases to interact with glycoproteins but also oozes with the salts.
Mechanically Tunable Solid/Solid Phononic Crystals Through the Rearrangement of Hard Scatterers Controlled by the Deformation of Periodic Elastomeric Matrixes
- Materials Science
- 2020
The fixed band gap characteristic of passive phononic crystals (PCs) is possible to limit their applications in engineering. To overcome this shortcoming, inspired by the tunable mechanism of the…
Biomimicking spider webs for effective fog water harvesting with electrospun polymer fibers.
- Materials ScienceNanoscale
- 2021
This review summarizes the current state of the art on water collection by fibrous meshes and offers suggestions for the testing of new designs under laboratory conditions by classifying the parameters already reported in experimental set-ups.
Accumulation of cesium in glue balls of spiders' orb webs
- Environmental ScienceSurface and Interface Analysis
- 2020
Spiders capture prey by applying sticky coating substances to the spiral line of their orb webs. The main constituents of these sticky substances are glycoproteins and salts. This sticky substance is…
References
SHOWING 1-10 OF 64 REFERENCES
Local Structure in Spider Dragline Silk Investigated by Two-Dimensional Spin-Diffusion Nuclear Magnetic Resonance†
- Biology
- 1996
Two-dimensional (2D) spin-diffusion experiments show that the alanine-rich domains of the protein form β-sheet structures in agreement with one-dimensional NMR results from a different species of the genus Nephila but at variance with diffraction results.
Optical second-harmonic images of sacran megamolecule aggregates.
- PhysicsJournal of the Optical Society of America. A, Optics, image science, and vision
- 2017
We have detected a second-order nonlinear optical response from aggregates of the ampholytic megamolecular polysaccharide sacran extracted from cyanobacterial biomaterials by using optical…
Image contrast immersion method for measuring refractive index applied to spider silks.
- PhysicsOptics express
- 2011
The technique is used to obtain measurements of the refractive index of spider silks as a function of wavelength, for the first time, and an Abbe number for the radial silks of Plebs eburnus of ~32 is found.
The molecular structure of spider dragline silk: Folding and orientation of the protein backbone
- BiologyProceedings of the National Academy of Sciences of the United States of America
- 2002
Two-dimensional solid-state NMR data indicate that all domains in dragline silk have a preferred secondary structure and are strongly oriented, with the chains predominantly parallel to the fiber.
Molecular Orientation and Two-Component Nature of the Crystalline Fraction of Spider Dragline Silk
- ChemistryScience
- 1996
Solid-state 2H nuclear magnetic resonance data from unoriented, oriented, and supercontracted fibers suggest that it will be necessary to control the secondary structure of individual polymer molecules in order to obtain optimum properties in bio-inspired polymers.
Fiber Morphology of Spider Silk: The Effects of Tensile Deformation
- Materials Science
- 1997
The fiber morphology of the dragline silk of Nephila clavipes has been investigated by the detailed analysis of wide-angle X-ray diffraction (WAXD) patterns. WAXD gives the crystal lattice…
Molecular nanosprings in spider capture-silk threads
- BiologyNature materials
- 2003
Pulling on molecules in capture-silk fibres from Araneus has revealed rupture peaks due to sacrificial bonds, characteristic of other self-healing biomaterials.
Liquid crystals and flow elongation in a spider's silk production line
- Materials ScienceProceedings of the Royal Society of London. Series B: Biological Sciences
- 1999
Our observations on whole mounted major ampullate silk glands suggested that the thread is drawn from a hyperbolic die using a pre–orientated lyotropic liquid crystalline feedstock. Polarizing…
Structural studies of spider silk proteins in the fiber
- Materials Science, MedicineJournal of molecular recognition : JMR
- 1997
NMR and X‐ray diffraction data are consistent with the β‐sheets arising from the poly‐alanine sequences known to be present in the proteins of major ampullate silk as has been proposed previously.
The mechanical design of spider silks: from fibroin sequence to mechanical function.
- BiologyThe Journal of experimental biology
- 1999
Comparison of MA silks from Araneus diadematus and Nephila clavipes shows variation in fibroin sequence and properties between spider species provides the opportunity to investigate the design of these remarkable biomaterials.