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J Tissue Eng Regen Med 2022 Aug 13. Epub 2022 Aug 13.

Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University Hannover, Hannover, Germany.

Three-dimensional (3D) cultivation platforms allow the creation of cell models, which more closely resemble in vivo-like cell behavior. Therefore, 3D cell culture platforms have started to replace conventional two-dimensional (2D) cultivation techniques in many fields. Besides the advantages of 3D culture, there are also some challenges: cultivation in 3D often results in an inhomogeneous microenvironment and therefore unique cultivation conditions for each cell inside the construct. Read More

R Soc Open Sci 2022 Aug 10;9(8):220712. Epub 2022 Aug 10.

Department of Infectious Diseases and Public Health, City University of Hong Kong, Kowloon, Hong Kong.

Lamellae are sheets of mineralized collagen 1-20 µm thick, extending over hundreds of µm in bone tissue, occupying bone's structural hierarchy at a level above collagen fibres and osteocytes, and below osteons and trabeculae. Osteons are tubular arrangements of lamellae surrounding central neurovascular canals. Lamellae in osteons are usually described as concentric cylinders based on their annular appearance in transverse section. Read More

Sensors (Basel) 2022 Jul 28;22(15). Epub 2022 Jul 28.

Departamento de Ingeniería Robótica, Universidad Politécnica de Guanajuato, Campus Cortázar, Guanajuato 38496, Mexico.

The inclusion of the Internet of Things (IoT) in greenhouses has become a fundamental tool for improving cultivation systems, offering information relevant to the greenhouse manager for decision making in search of optimum yield. This article presents a monitoring system applied to an aeroponic greenhouse based on an IoT architecture that provides user information on the status of the climatic variables and the appearance of the crop in addition to managing the irrigation timing and the frequency of visual inspection using an application developed for Android mobile devices called Aeroponics Monitor. The proposed IoT architecture consists of four layers: a device layer, fog layer, cloud layer and application layer. Read More

Nanomaterials (Basel) 2022 Jul 27;12(15). Epub 2022 Jul 27.

Grupo de Transiciones de Fase y Materiales Funcionales, Departamento de Física, FCNE, Universidad del Valle, Santiago de Cali 76001, Colombia.

Thin films of BiFeO, VO, and BiFeO/VO were grown on SrTiO(100) and AlO(0001) monocrystalline substrates using radio frequency and direct current sputtering techniques. To observe the effect of the coupling between these materials, the surface of the films was characterized by profilometry, atomic force microscopy, and X-ray photoelectron spectroscopy. The heterostructures, monolayers, and bilayers based on BiFeO and VO grew with good adhesion and without delamination or signs of incompatibility between the layers. Read More

Polymers (Basel) 2022 Aug 2;14(15). Epub 2022 Aug 2.

National Engineering Laboratory for Crop Efficient Water Use and Disaster Mitigation, Key Laboratory of Prevention and Control of Residual Pollution in Agricultural Film, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China.

Biodegradable mulches (BDMs) are considered promising alternative green materials to achieve the substitution of polythene (PE) films to reduce plastic pollution. However, whether the BDMs are sufficiently effective to promote cotton production as PE film is a controversial topic. In this study, laboratory determination and field experiments were conducted with one pure Poly(butylene adipate-co-terephthalate) (PBAT) film (BDM), two commercial PBAT-based films (BDM1 and BDM2), and one PE film to (ⅰ) compare the degradation behavior, morphology, and property changes during field application, and (ⅱ) reveal their effects on biomass accumulation and cotton yield. Read More