000126355 001__ 126355
000126355 005__ 20241125101142.0
000126355 0247_ $$2doi$$a10.1039/d2tb02757g
000126355 0248_ $$2sideral$$a133802
000126355 037__ $$aART-2023-133802
000126355 041__ $$aeng
000126355 100__ $$aCeamanos, L.
000126355 245__ $$aPhotomechanical response under physiological conditions of azobenzene-containing 4D-printed liquid crystal elastomer actuators
000126355 260__ $$c2023
000126355 5060_ $$aAccess copy available to the general public$$fUnrestricted
000126355 5203_ $$aSoft and mechanically responsive actuators hold the promise to revolutionize the design and manufacturing of devices in the areas of microfluidics, soft robotics and biomedical engineering. In many of these applications, the actuators need to operate in a wet environment that can strongly affect their performance. In this paper, we report on the photomechanical response in a biological buffer of azobenzene-containing liquid crystal elastomer (LCE)-based actuators, prepared by four-dimensional (4D) printing. Although the photothermal contribution to the photoresponse is largely cancelled by the heat withdrawing capacity of the employed buffer, a significant photoinduced reversible contraction, in the range of 7% of its initial length, has been achieved under load, taking just a few seconds to reach half of the maximum contraction. Effective photomechanical work performance under physiological conditions has, therefore, been demonstrated in the 4D-printed actuators. Advantageously, the photomechanical response is not sensitive to salts present in the buffer differently to hydrogels with responses highly dependent on the fluid composition. Our work highlights the capabilities of photomechanical actuators, created using 4D printing, when operating under physiological conditions, thus showing their potential for application in the microfluidics and biomedical fields.
000126355 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E47-20R$$9info:eu-repo/grantAgreement/ES/DGA-FEDER/LMP221_21$$9info:eu-repo/grantAgreement/EC/H2020/829010/EU/Advanced and versatile PRInting platform for the next generation of active Microfluidic dEvices/PRIME$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 829010-PRIME$$9info:eu-repo/grantAgreement/ES/ISCIII/CB06-01/00263$$9info:eu-repo/grantAgreement/ES/MICINN/PID2020-118485RB-I00
000126355 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000126355 590__ $$a6.1$$b2023
000126355 592__ $$a1.216$$b2023
000126355 591__ $$aMATERIALS SCIENCE, BIOMATERIALS$$b11 / 53 = 0.208$$c2023$$dQ1$$eT1
000126355 593__ $$aBiomedical Engineering$$c2023$$dQ1
000126355 593__ $$aMedicine (miscellaneous)$$c2023$$dQ1
000126355 593__ $$aMaterials Science (miscellaneous)$$c2023$$dQ1
000126355 593__ $$aChemistry (miscellaneous)$$c2023$$dQ1
000126355 594__ $$a12.0$$b2023
000126355 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000126355 700__ $$aMulder, D. J.
000126355 700__ $$aKahveci, Z.
000126355 700__ $$aLópez-Valdeolivas, M.
000126355 700__ $$aSchenning, A. P. H. J.
000126355 700__ $$0(orcid)0000-0003-3900-2866$$aSánchez-Somolinos, C.
000126355 773__ $$g11, 18 (2023), 4083-4094$$pJ. mater. chem. B$$tJournal of Materials Chemistry B$$x2050-750X
000126355 8564_ $$s2591279$$uhttps://zaguan.unizar.es/record/126355/files/texto_completo.pdf$$yVersión publicada
000126355 8564_ $$s2818739$$uhttps://zaguan.unizar.es/record/126355/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000126355 909CO $$ooai:zaguan.unizar.es:126355$$particulos$$pdriver
000126355 951__ $$a2024-11-22-12:03:05
000126355 980__ $$aARTICLE