This special issue offers readers an engaging and insightful look into Solid State Chemistry covering a range of recent and significant topics of materials, highlighting the ongoing importance and impact of the field (i) materials for energy and sustainability, (ii) materials for biomedical applications, and (iii) advanced preparation methods and multifunctional materials.
Special Issue Solid State Chemistry
									Tania Maria H. Costa 
; Eliana W. de Menezes 
; Leliz T. Arenas 
; Edilson Valmir Benvenutti
								
									
									Ionic silsesquioxanes, silica based hybrid polymers with amazing properties, which play important roles in the architecture of multifunctional nanostructured materials to be applied in priority areas such as health, food, and sustainable energy.
									Edison Huertas-Montoya 
; Anerise de Barros 
; Lucas M. F. Oliveira; Paola A. Caro Aponte; Alexandre L. R. Oliveira; Flavio M. Shimizu 
; Alessandra Sussulini 
; Fernando A. Sigoli 
; Italo O. Mazali
								
									
									Inkjet-printed flexible surface-enhanced Raman scattering (SERS) sensors equipped with Au nanostar-based ink marks, a significant advancement in paper-based sensor technology. These sensors exhibit promising potential for the detection of biomolecules, such as the psychoactive N,N-dimethyltryptamine alkaloid, even at ultralow concentrations.
									Leandro A. Faustino 
; Ismael P. L. Xavier 
; Paulo F. M. de Oliveira 
; Susana I. Cordoba de Torresi
								
									
									The semiconductor BiVO4 served as both a support and a precursor for the synthesis of plasmonic metallic bismuth nanoparticles via a mechanochemical one-pot route. The mechanochemical synthesis enhances the charge carriers and the optical properties, making it a valuable approach in various fields such as catalysis.
									Paula J. F. Cala; Guilherme G. Dariani 
; Eduardo T. A. Veiga; Pedro H. D. Macedo; Amauri J. Paula 
; James M. Almeida
								
									
									Machine learning methodologies, particularly XGBoost (extreme gradient boosting), demonstrate superior accuracy in predicting hydrocarbon surface tension, offering potential efficiency improvements in various industrial and laboratory processes.
									Fagner S. Moura 
; Everton T. da Silva 
; Talis U. da Silva 
; Rachel D. dos Santos; Sérgio P. Machado 
; Francisco M. S. Garrido 
; Marta E. Medeiros 
; Annelise Casellato
								
									
									We report cobalt(II) complex-modified electrodes in which the effect of substituent groups affects their redox properties. In summary, the nature of -NO2 group facilitates the reduction of O2 under the evaluated conditions.
									Barbara P. G. Silva; Willian C. da Silva; Stefany R. Saraiva; Larissa Otubo
								
									
									Transparent conductive films of silver nanowires deposited on glass by drop-casting method.
									Vagner R. Magri 
; Caroline S. de Matos 
; Michele A. Rocha 
; Christine Taviot-Gueho 
; Vera R. L. Constantino
								
									
									This work revisited the intercalation of folate anions (HFol2- or Fol3-) into layered double hydroxide constituted by M2+/Al3+ (M2+ = Mg2+ or Zn2+).
									Elena I. A. H. P. Santos; Flavio M. Vichi
								
									
									Cadmium oxyorthosilicate Cd3SiO5 was obtained for the first time by a sol-gel method.
									Pedro B. M. Nunes 
; Guilherme B. Strapasson 
; Gabriel B. Báfero 
; Daniela Zanchet
								
									
									Pre-treatments applied in γ-Fe2O3 nanopowder to vary the ratio among iron species, optimizing selectivity for the acetone hydrodeoxygenation (HDO) reaction.
									Mariana Z. Tonel 
; Jaine Schemmer 
; Laura O. Vendrame 
; Ivana Zanella 
; Solange B. Fagan
								
									
									Throughout the water course design, contaminants are initially present, then pass through the proposed filtration system of this study, resulting in clean water.
									Viviane C. Gomes 
; Ayla Roberta Serra 
; Gabriel C. de Sousa 
; Cláudio Roberto Neri 
; Baiwen Zhao; Juliana F. de Lima 
; Richard I. Walton 
; Osvaldo Antonio Serra
								
									
									Facile method for preparing an active CeO2 material through direct decomposition of the metal-organic framework (MOF) Ce-BTC for application in soot catalysis.
									Elinei N. C. de Almeida; Erlan A. Pacheco; Koji J. Nagahama; Tereza Simonne M. Santos; Alexilda O. de Souza
								
									
									Low-cost activated carbon derived from guava seeds was used to remove tartrazine dye from aqueous solution with more than 90% efficiency.
									Nadia G. Macedo 
; Miguel T. Galante 
; Leonardo C. Soares 
; Jéssica C. Alvim 
; Vanderlei S. Lima 
; Marcio Sangali 
;
João F. Q. Rodrigues 
; Rubens Caram Jr. 
; Claudia Longo
								
									
									The arc melting synthesis is a four-step process: (i) combination of the precursor oxides; (ii) homogenization and compression into a pellet; (iii) quick melting by an electrical arc (inert atmosphere) and (iv) grinding of the arc melted pellet to obtain particles.
									Fabio J. F. S. Henrique 
; Felipe L. Oliveira 
; Pierre M. Esteves
								
									
									The study investigates molecular and periodic carbon allotropes, known as archicarbons, revealing diverse architectures, unique electronic properties, and substantial potential for semiconductor applications.
									Nathalia C. L. Azevedo 
; Aline M. Z. de Medeiros 
; Gabriela H. da Silva 
; Milena L. Brito 
; João M. L. Faria 
;
Fabrício S. Delite 
; Amauri J. Paula 
; Diego S. T. Martinez
								
									
									Nanobio-interactions of graphene oxide-silver nanoparticles with human blood biomolecules have critical influence on surface chemistry and colloidal behavior linked to hemolysis mitigation.
									Ekeveliny A. Veschi; Wanderson de Souza; Myrella K. G. Nobre; Fernanda Sias; Bárbara Gomes; Beatriz L. Roquett; Nathalia Müller; Leonardo Boldrini; Celso Sant'anna; Jose Mauro Granjeiro
								
									
									Cells A549 seeded on the E-plate are monitored in real-time by xCELLigence. Cell index (CI) is recorded as they adhere and proliferate. With no barriers to the flow of electrons, the CI is zero. AgNPs and HANPs impact proliferation, altering the CI.
									Danilo R. C. Ferreira; Tiago Serodre 
; Pedro L. Gastelois; Waldemar A. A. Macedo 
; Estefânia M. N. Martins; Clascídia A. Furtado
								
									
									The formation of non-fluorescent complexes and the fluorescence quenching mechanism in graphene oxide (GO)-fluorophore systems depend on the net charge of the fluorophore.
									Francieli M. Mayer 
; Ana Paula S. de Oliveira; Daliomar L. de Oliveira Júnior; Ariele S. dos Santos; Eduardo H. Tanabe;
Claudia A. Zini 
; Maria do Carmo Rangel
								
									
									Cassava peel successfully produces benzene, toluene, ethylbenzene and xylenes (BTEX, high added value) without any toxic polyaromatics during fast pyrolysis over beta zeolite-supported nickel (3%).
Online version ISSN 1678-4790 Printed version ISSN 0103-5053 
 Journal of the Brazilian Chemical Society 
 JBCS Editorial and Publishing Office 
 University of Campinas - UNICAMP 
 13083-970 Campinas-SP, Brazil 
                    
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