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This editorial note is dedicated to the 2023 Journal report of AIMS Materials Science, which was run by AIMS Press. After a brief summary about the annual development in 2023, future developments of the journal in 2024 are proposed. In 2023, AIMS Materials Science received its first Impact Factor (1.8). In addition, based on the Scopus database of Elsevier, the CiteScore of AIMS Materials Science has been increased from 3.3 to 4.2. [ABSTRACT FROM AUTHOR]

Purpose - The purpose of this paper is to propose a mathematical model to estimate required energy and temperature distribution during cold extrusion process. Design/methodology/approach - An admissible velocity field is generated based on stream function technique. Then, the required energy and the temperature distributions in the metal and the extrusion die are determined by a coupled upper bound-finite element analysis. Findings - To examine the proposed model, cold extrusion of AA6061-10%SiC[sub p] is considered and the predicted extrusion force-displacement diagrams in different reductions are compared with the experimental ones and reasonable agreement is observed. Furthermore, it is found that there is a linear relationship between maximum temperature and logarithm of ram velocity for the examined composite. Originality/value - This approach requires shorter run-time as compared with fully finite element analyses while the model is particularly appropriate for high speed extrusion processes where the adiabatic heating is of importance. [ABSTRACT FROM AUTHOR]

I Advances in Materials Science and Engineering i has retracted the article titled "Influence of Al Content on Degradation Behavior of Cu-Doped Mg-Al Alloys for Drill-Free Plugging Applications" [[1]] due to concerns that appropriate permissions were not obtained for the publication of the data. REFERENCES 1 Kang L., Shi Y., Luo X., Liu B. Influence of Al Content on Degradation Behavior of Cu-Doped Mg-Al Alloys for Drill-Free Plugging Applications. [Extracted from the article]

The reaction of CrII(NCMe)4(BF4)2and [NBun4][TCNE] (TCNE = tetracyanoethylene) in CH2Cl2forms a solid that is a mixture of an amorphous reduced-TCNE containing phase(s) and a crystalline component. Rietveld refinement of the high-resolution, synchrotron X-ray powder pattern enabled the determination of the structure of the crystalline phase to be of CrIIF(NCMe)2BF4composition and illustrates that this methodology can be used to determine the structure of a crystalline substance of unknown composition in the presence of confounding information from coexisting amorphous material. CrIIF(NCMe)2BF4exhibits a 1-D chain structure with both μ-F and μ-BF4−linkages that forms a nonplanar 6-membered FCrFBFCr ring. CrIIF(NCMe)2BF4possesses a previously unknown structure type and is a potential source of CrIIF+for synthesis applications. [ABSTRACT FROM AUTHOR]

We report a fabrication of field-effect transistors using the new organic semiconductors octathio[8]circulene 5and tetrathiotetraseleno[8]circulene 6. The maximum hole mobility of 9 × 10−3cm2V−1s−1is, most likely, limited by one-dimensional growth of 5and 6in thin films. [ABSTRACT FROM AUTHOR]

Two types of turbidimetric detection of adenosine 5′-triphosphate (ATP) by the naked eye were achieved through a combination of non-cross-linking aggregation of DNA-linked polymeric micelles and molecular recognition of ATP by a DNA aptamer. [ABSTRACT FROM AUTHOR]

Nanofibrous LaMnO3 can be immobilized on macrostructured materials using carbon nanofibers as templates; their application as macro-nanostructured catalysts are also presented. [ABSTRACT FROM AUTHOR]

Thiazoline–thiazole hybrid macrocycles were synthesized via head-to-tail cyclooligomerization. The macrocycle consisting of eight heterocyclic subunits displays high binding affinity to the heavy metal toxins Pb2+ and Cd2+. [ABSTRACT FROM AUTHOR]

A series of heteroleptic binuclear Pd(ii) and Pt(ii) complexes, [M(bdts)]2(μ-dppa)2(M = Pd (3) and Pt (4); dppa = 1,2-bis(diphenylphosphino)acetylene = Ph2PCCPPh2; bdts = 1,2-benzenedithiolate (bdt: a), 3,4-toluenedithiolate (tdt: b) and 1,4-dichloro-2,3-benzenedithiolate (Cl2bdt: c), containing two square-planar MP2S2cores were prepared using (MCl2)2(μ-dppa)2(M = Pd (1) and Pt (2)) and the corresponding 1,2-benzenedithiols, and characterized by spectroscopic methods including FT-IR, Raman, UV-vis, MALDI-TOF-MS, 31P{1H} and/or 195Pt{1H} NMR spectroscopy. X-Ray crystal structure analyses for complexes 3and 4revealed that C1C2C4C3 is twisted in two ways with a torsion angle of 21.6–30.7° for 3a, 3b, 4aand 4band about 42° for 3cand 4c, and that their crystals are racemic mixtures. Due to the more electronegative chloride atoms in the ligand, complexes 3cand 4cshow higher ν(M–S) vibrational frequencies in their Raman spectra, smaller spin–spin coupling constants (JPt–P) in their 195Pt{31P} NMR spectra and higher anodic potentials (Epa) in their cyclic voltammograms than complexes 3a, 3b, 4aand 4b. Moreover, only complex 4ccontaining the chlorinated ligand and Pt(ii) ion exhibits luminescence (λob= 610 nm and λex= 440 nm) in the solid state at 298 K. This emissive transition can be assigned as the d–π*dithiolatemetal-to-ligand charge transfer (MLCT) and the feasibility of this spin-forbidden transition is ascribed to the effective spin–orbit coupling of ligand ccontaining heavy chloride atoms and the large spin–orbit coupling in Pt(ii). [ABSTRACT FROM AUTHOR]

Recently, oriented polymers and/or polymer nanostructures have attracted a large amount of attention for their potential applications as, for example, electric devices such as FETs, LEDs, photovoltaic cells, and so forth. Besides several methods for organizing conjugated polymers, we have recently reported a novel concept for the alignment of conjugated polymers through the action of supramolecular bundling molecules. We here introduce two different approaches for aligning conjugated polymers; one is to utilize a crosslinking molecule (‘aligner’), and the other is to use a twining polymer (‘twimer’) for organizing conjugated polymers. Aligner binds and crosslinks conjugated polymers in a positive allosteric manner to form organized supramolecular assemblies in solution. The cast film from the solution resulted in a crystalline sheet with periodicities corresponding to the distance between polymers, confirmed by several microscopic studies. On the other hand, twimer helically twins around the conjugated polymers to form one-dimensional (1D) complex in solution and the complex self-assembles into two-dimensionally (2D) aligned structure in drying process. The resulting film of conjugated polymer–twimer composites gave also highly ordered, crystalline structure. The principal results obtained both in solution and solid states and their future perspectives are discussed here. [ABSTRACT FROM AUTHOR]