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Bistable thermo-chromic and magnetic spin crossover microcrystals embedded in nata de coco bacterial cellulose biofilm
Onggo D.a, Mulyani I.a, Valverde-Munoz F.J.b, Real J.A.b, Molnar G.
a Inorganic and Physical Chemistry Research Group, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, 40132, Indonesia
b Institut de Ciencia Molecular (ICMol), Universitat de València, Paterna, 46980, Spain
c LCC, CNRS and Université de Toulouse (UPS, INP), Toulouse, 31077, France
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2017, Springer Science+Business Media Dordrecht.Bacterial cellulose (BC) is a unique biomaterial with interesting physico-chemical properties and potential technological applications (i.e. removal of heavy metals from wastewater, manufacturing electrical and electronic devices, papermaking and biomedical technologies among others). In this work, we describe the growth of well formed micro-crystals of the one-dimensional spin crossover (SCO) compound {[Fe(Htrz)2(trz)](BF4)}n in a matrix of BC. The thermal dependence of the magnetic, optical, calorimetric and vibrational properties associated with the SCO properties of the resulting composite material have been investigated and compare well with those of the bulk SCO. The SCO-BC composite films display reversible thermomagnetic (diamagnetic ↔ paramagnetic) and thermochromic bistability (purple ↔ pale-yellow) determined by a well-defined hysteresis in the temperature range ca. 345–380 K where these properties depend on the history of the sample (memory effect).[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Bacterial cellulose,Biomedical technologies,Iron complex,Physicochemical property,Responsive materials,Spin crossovers,Technological applications,Vibrational properties[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Bacterial cellulose,Composite material,Environmental responsive materials,Iron(II) complex,Spin crossover[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]D.O. wish to express special thanks to Prof. H. A. Goodwin for giving inspiration in exploring SCO and for Research funding ITB No. 254/I.1.C01/PL/2011. J.A.R. thanks the Spanish Ministerio de Econom??a y Competitividad (MINECO) and FEDER funds (CTQ2013-46275-P and CTQ2016-78341-P and Unidad de Excelencia Mar??a de Maeztu (MDM-2015-0538) and Generalitat Valenciana (PROMETEO/2016/147). F.J.V.M. thanks the MINECO for a predoctoral FPI fellowship.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1007/s10570-017-1248-3[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]