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Article ; Online: Squid leucophore-inspired engineering of optically dynamic human cells.

Bogdanov, Georgii / Chatterjee, Atrouli / Makeeva, Nataliya / Farrukh, Aleeza / Gorodetsky, Alon A

iScience

2023 Volume 26, Issue 7, Page(s) 106854

Abstract: Cephalopods (e.g., squids, octopuses, and cuttlefishes) possess remarkable dynamic camouflage abilities and therefore have emerged as powerful sources of inspiration for the engineering of dynamic optical technologies. Within this context, we have ... ...

Abstract	Cephalopods (e.g., squids, octopuses, and cuttlefishes) possess remarkable dynamic camouflage abilities and therefore have emerged as powerful sources of inspiration for the engineering of dynamic optical technologies. Within this context, we have focused on the development of engineered living systems that can emulate the tunable optical characteristics of some squid skin cells. Herein, we expand our ability to controllably incorporate reflectin-based structures within mammalian cells via genetic engineering methods, and demonstrate that such structures can facilitate holotomographic and standard microscopy imaging of the cells. Moreover, we show that the reflectin-based structures within our cells can be reconfigured with a straightforward chemical stimulus, and we quantify the stimulus-induced changes observed for the structures at the single cell level. The reported findings may enable a better understanding of the color- and appearance-changing capabilities of some cephalopod skin cells and could afford opportunities for reflectins as molecular probes in the fields of cell biology and biomedical optics.
Language	English
Publishing date	2023-05-11
Publishing country	United States
Document type	Journal Article
ISSN	2589-0042
ISSN (online)	2589-0042
DOI	10.1016/j.isci.2023.106854
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Structure-function relationships for squid skin-inspired wearable thermoregulatory materials.

Liu, Panyiming / Leung, Erica M / Badshah, Mohsin Ali / Moore, Christopher S / Gorodetsky, Alon A

APL bioengineering

2023 Volume 7, Issue 4, Page(s) 46111

Abstract: Wearable thermoregulatory technologies have attracted widespread attention because of their potential for impacting individual physiological comfort and for reducing building energy consumption. Within this context, the study of materials and systems ... ...

Abstract	Wearable thermoregulatory technologies have attracted widespread attention because of their potential for impacting individual physiological comfort and for reducing building energy consumption. Within this context, the study of materials and systems that can merge the advantageous characteristics of both active and passive operating modes has proven particularly attractive. Accordingly, our laboratory has drawn inspiration from the appearance-changing skin of Loliginidae (inshore squids) for the introduction of a unique class of dynamic thermoregulatory composite materials with outstanding figures of merit. Herein, we demonstrate a straightforward approach for experimentally controlling and computationally predicting the adaptive infrared properties of such bioinspired composites, thereby enabling the development and validation of robust structure-function relationships for the composites. Our findings may help unlock the potential of not only the described materials but also comparable systems for applications as varied as thermoregulatory wearables, food packaging, infrared camouflage, soft robotics, and biomedical sensing.
Language	English
Publishing date	2023-11-06
Publishing country	United States
Document type	Journal Article
ISSN	2473-2877
ISSN (online)	2473-2877
DOI	10.1063/5.0149289
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Stretchable Cephalopod-Inspired Multimodal Camouflage Systems.

Xu, Chengyi / Colorado Escobar, Melvin / Gorodetsky, Alon A

Advanced materials (Deerfield Beach, Fla.)

2020 Volume 32, Issue 16, Page(s) e1905717

Abstract: Soft, mechanically deformable materials and systems that can, on demand, manipulate light propagation within both the visible and infrared (IR) regions of the electromagnetic spectrum are desirable for applications that include sensing, optoelectronics, ... ...

Abstract	Soft, mechanically deformable materials and systems that can, on demand, manipulate light propagation within both the visible and infrared (IR) regions of the electromagnetic spectrum are desirable for applications that include sensing, optoelectronics, robotics, energy conservation, and thermal management. However, the development of such technologies remains exceptionally difficult, with relatively few examples reported to date. Herein, this challenge is addressed by engineering cephalopod-inspired adaptive camouflage platforms with multispectral functionality. First, stretchable copolymer membranes that feature outstanding unstrained protonic conductivities of up to ≈90 mS cm
Language	English
Publishing date	2020-03-04
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1474949-X
ISSN	1521-4095 ; 0935-9648
ISSN (online)	1521-4095
ISSN	0935-9648
DOI	10.1002/adma.201905717
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Article ; Online: Analytical chemistry: Clamping down on cancer detection.

Gorodetskaya, Irina A / Gorodetsky, Alon A

Nature chemistry

2015 Volume 7, Issue 7, Page(s) 541–542

MeSH term(s)	Electrochemical Techniques/methods ; Humans ; Nucleic Acids/blood
Chemical Substances	Nucleic Acids
Language	English
Publishing date	2015-07
Publishing country	England
Document type	Comment ; Journal Article
ZDB-ID	2464596-5
ISSN	1755-4349 ; 1755-4330
ISSN (online)	1755-4349
ISSN	1755-4330
DOI	10.1038/nchem.2290
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Article ; Online: Reconfigurable Micro- and Nano-Structured Camouflage Surfaces Inspired by Cephalopods.

Liu, Yinuan / Feng, Zhijing / Xu, Chengyi / Chatterjee, Atrouli / Gorodetsky, Alon A

ACS nano

2021 Volume 15, Issue 11, Page(s) 17299–17309

Abstract: Wrinkled surfaces and materials are found throughout the natural world in various plants and animals and are known to improve the performance of emerging optical and electrical technologies. Despite much progress, the reversible post-fabrication tuning ... ...

Abstract	Wrinkled surfaces and materials are found throughout the natural world in various plants and animals and are known to improve the performance of emerging optical and electrical technologies. Despite much progress, the reversible post-fabrication tuning of wrinkle sizes and geometries across multiple length scales has remained relatively challenging for some materials, and the development of comprehensive structure-function relationships for optically active wrinkled surfaces has often proven difficult. Herein, by drawing inspiration from natural cephalopod skin and leveraging methodologies established for artificial adaptive infrared platforms, we engineer systems with hierarchically reconfigurable wrinkled surface morphologies and dynamically tunable visible-to-infrared spectroscopic properties. Specifically, we demonstrate architectures for which mechanical actuation changes the surface morphological characteristics; modulates the reflectance, transmittance, and absorptance across a broad spectral window; controls the specular-to-diffuse reflectance ratios; and alters the visible and thermal appearances. Moreover, we demonstrate the incorporation of these architectures into analogous electrically actuated appearance-changing devices that feature competitive figures of merit, such as reasonable maximum areal strains, rapid response times, and good stabilities upon repeated actuation. Overall, our findings constitute another step forward in the continued development of cephalopod-inspired light- and heat-manipulating systems and may facilitate advanced applications in the areas of sensing, electronics, optics, soft robotics, and thermal management.
MeSH term(s)	Animals ; Cephalopoda ; Electronics ; Optics and Photonics ; Robotics ; Vision, Ocular
Language	English
Publishing date	2021-10-11
Publishing country	United States
Document type	Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
ISSN	1936-086X
ISSN (online)	1936-086X
DOI	10.1021/acsnano.0c09990
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Adaptive infrared-reflecting systems inspired by cephalopods.

Xu, Chengyi / Stiubianu, George T / Gorodetsky, Alon A

Science (New York, N.Y.)

2018 Volume 359, Issue 6383, Page(s) 1495–1500

Abstract: Materials and systems that statically reflect radiation in the infrared region of the electromagnetic spectrum underpin the performance of many entrenched technologies, including building insulation, energy-conserving windows, spacecraft components, ... ...

Abstract	Materials and systems that statically reflect radiation in the infrared region of the electromagnetic spectrum underpin the performance of many entrenched technologies, including building insulation, energy-conserving windows, spacecraft components, electronics shielding, container packaging, protective clothing, and camouflage platforms. The development of their adaptive variants, in which the infrared-reflecting properties dynamically change in response to external stimuli, has emerged as an important unmet scientific challenge. By drawing inspiration from cephalopod skin, we developed adaptive infrared-reflecting platforms that feature a simple actuation mechanism, low working temperature, tunable spectral range, weak angular dependence, fast response, stability to repeated cycling, amenability to patterning and multiplexing, autonomous operation, robust mechanical properties, and straightforward manufacturability. Our findings may open opportunities for infrared camouflage and other technologies that regulate infrared radiation.
Language	English
Publishing date	2018--30
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	128410-1
ISSN	1095-9203 ; 0036-8075
ISSN (online)	1095-9203
ISSN	0036-8075
DOI	10.1126/science.aar5191
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Article ; Online: Octopus-inspired deception and signaling systems from an exceptionally-stable acene variant.

Pratakshya, Preeta / Xu, Chengyi / Dibble, David J / Mukazhanova, Aliya / Liu, Panyiming / Burke, Anthony M / Kurakake, Reina / Lopez, Robert / Dennison, Philip R / Sharifzadeh, Sahar / Gorodetsky, Alon A

Nature communications

2023 Volume 14, Issue 1, Page(s) 8528

Abstract: Multifunctional platforms that can dynamically modulate their color and appearance have attracted attention for applications as varied as displays, signaling, camouflage, anti-counterfeiting, sensing, biomedical imaging, energy conservation, and robotics. ...

Abstract	Multifunctional platforms that can dynamically modulate their color and appearance have attracted attention for applications as varied as displays, signaling, camouflage, anti-counterfeiting, sensing, biomedical imaging, energy conservation, and robotics. Within this context, the development of camouflage systems with tunable spectroscopic and fluorescent properties that span the ultraviolet, visible, and near-infrared spectral regions has remained exceedingly challenging because of frequently competing materials and device design requirements. Herein, we draw inspiration from the unique blue rings of the Hapalochlaena lunulata octopus for the development of deception and signaling systems that resolve these critical challenges. As the active material, our actuator-type systems incorporate a readily-prepared and easily-processable nonacene-like molecule with an ambient-atmosphere stability that exceeds the state-of-the-art for comparable acenes by orders of magnitude. Devices from this active material feature a powerful and unique combination of advantages, including straightforward benchtop fabrication, competitive baseline performance metrics, robustness during cycling with the capacity for autonomous self-repair, and multiple dynamic multispectral operating modes. When considered together, the described exciting discoveries point to new scientific and technological opportunities in the areas of functional organic materials, reconfigurable soft actuators, and adaptive photonic systems.
Language	English
Publishing date	2023-12-22
Publishing country	England
Document type	Journal Article
ZDB-ID	2553671-0
ISSN	2041-1723 ; 2041-1723
ISSN (online)	2041-1723
ISSN	2041-1723
DOI	10.1038/s41467-023-40163-7
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Article ; Online: An aza-Diels-Alder approach to chlorinated quinolines, benzoquinolines, and polybenzoquinolines.

Kim, Juhwan / Umerani, Mehran J / Kurakake, Reina / Qin, Huiting / Ziller, Joseph W / Gorodetsky, Alon A / Park, Young S

RSC advances

2021 Volume 11, Issue 23, Page(s) 13722–13730

Abstract: Quinolines and quinoline-containing macromolecules are renowned for their valuable biological activities and excellent materials properties. Herein, we validate a general strategy for the synthesis of chloro-containing quinoline, benzoquinoline and ... ...

Abstract	Quinolines and quinoline-containing macromolecules are renowned for their valuable biological activities and excellent materials properties. Herein, we validate a general strategy for the synthesis of chloro-containing quinoline, benzoquinoline and polybenzoquinoline variants
Language	English
Publishing date	2021-04-14
Publishing country	England
Document type	Journal Article
ISSN	2046-2069
ISSN (online)	2046-2069
DOI	10.1039/d0ra06744j
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Article ; Online: Cephalopod-inspired optical engineering of human cells.

Chatterjee, Atrouli / Cerna Sanchez, Juana Alejandra / Yamauchi, Toyohiko / Taupin, Vanessa / Couvrette, Justin / Gorodetsky, Alon A

Nature communications

2020 Volume 11, Issue 1, Page(s) 2708

Abstract: Although many animals have evolved intrinsic transparency for the purpose of concealment, the development of dynamic, that is, controllable and reversible, transparency for living human cells and tissues has remained elusive to date. Here, by drawing ... ...

Abstract	Although many animals have evolved intrinsic transparency for the purpose of concealment, the development of dynamic, that is, controllable and reversible, transparency for living human cells and tissues has remained elusive to date. Here, by drawing inspiration from the structures and functionalities of adaptive cephalopod skin cells, we design and engineer human cells that contain reconfigurable protein-based photonic architectures and, as a result, possess tunable transparency-changing and light-scattering capabilities. Our findings may lead to the development of unique biophotonic tools for applications in materials science and bioengineering and may also facilitate an improved understanding of a wide range of biological systems.
MeSH term(s)	Animals ; Cell Culture Techniques ; Cell Engineering/methods ; Cephalopoda ; Female ; Genetic Engineering ; HEK293 Cells ; Humans ; Optics and Photonics ; Proteins/chemistry ; Skin ; Synthetic Biology/methods
Chemical Substances	Proteins
Language	English
Publishing date	2020-06-02
Publishing country	England
Document type	Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
ZDB-ID	2553671-0
ISSN	2041-1723 ; 2041-1723
ISSN (online)	2041-1723
ISSN	2041-1723
DOI	10.1038/s41467-020-16151-6
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Long-Range Proton Transport in Films from a Reflectin-Derived Polypeptide.

Xu, Chengyi / Kandel, Nabin / Qiao, Xin / Khan, Md Imran / Pratakshya, Preeta / Tolouei, Nadia E / Chen, Bo / Gorodetsky, Alon A

ACS applied materials & interfaces

2021 Volume 13, Issue 18, Page(s) 20938–20946

Abstract: Protein- and peptide-based proton conductors have been extensively studied because of their important roles in biological processes and established potential for bioelectronic device applications. However, despite much progress, the demonstration of long- ...

Abstract	Protein- and peptide-based proton conductors have been extensively studied because of their important roles in biological processes and established potential for bioelectronic device applications. However, despite much progress, the demonstration of long-range proton transport for such materials has remained relatively rare. Herein, we fabricate, electrically interrogate, and physically characterize films from a reflectin-derived polypeptide. The electrical measurements indicate that device-integrated films exhibit proton conductivities with values of ∼0.4 mS/cm and sustain proton transport over distances of ∼1 mm. The accompanying physical characterization indicates that the polypeptide possesses characteristics analogous to those of the parent protein class and furnishes insight into the relationship between the polypeptide's electrical functionality and structure in the solid state. When considered together, our findings hold significance for the continued development and engineering of not only reflectin-based materials but also other bioinspired proton conductors.
MeSH term(s)	Biochemical Phenomena ; Electric Conductivity ; Ion Transport ; Magnetic Resonance Spectroscopy/methods ; Peptides/chemistry ; Protons ; Spectroscopy, Fourier Transform Infrared
Chemical Substances	Peptides ; Protons
Language	English
Publishing date	2021-05-03
Publishing country	United States
Document type	Journal Article
ISSN	1944-8252
ISSN (online)	1944-8252
DOI	10.1021/acsami.0c18929
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