1
|
He X, Kimura S, Katase T, Tadano T, Matsuishi S, Minohara M, Hiramatsu H, Kumigashira H, Hosono H, Kamiya T. Inverse-Perovskite Ba 3 BO (B = Si and Ge) as a High Performance Environmentally Benign Thermoelectric Material with Low Lattice Thermal Conductivity. Adv Sci (Weinh) 2024; 11:e2307058. [PMID: 38145354 PMCID: PMC10933667 DOI: 10.1002/advs.202307058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/19/2023] [Indexed: 12/26/2023]
Abstract
High energy-conversion efficiency (ZT) of thermoelectric materials has been achieved in heavy metal chalcogenides, but the use of toxic Pb or Te is an obstacle for wide applications of thermoelectricity. Here, high ZT is demonstrated in toxic-element free Ba3 BO (B = Si and Ge) with inverse-perovskite structure. The negatively charged B ion contributes to hole transport with long carrier life time, and their highly dispersive bands with multiple valley degeneracy realize both high p-type electronic conductivity and high Seebeck coefficient, resulting in high power factor (PF). In addition, extremely low lattice thermal conductivities (κlat ) 1.0-0.4 W m-1 K-1 at T = 300-600 K are observed in Ba3 BO. Highly distorted O-Ba6 octahedral framework with weak ionic bonds between Ba with large mass and O provides low phonon velocities and strong phonon scattering in Ba3 BO. As a consequence of high PF and low κlat , Ba3 SiO (Ba3 GeO) exhibits rather high ZT = 0.16-0.84 (0.35-0.65) at T = 300-623 K (300-523 K). Finally, based on first-principles carrier and phonon transport calculations, maximum ZT is predicted to be 2.14 for Ba3 SiO and 1.21 for Ba3 GeO at T = 600 K by optimizing hole concentration. Present results propose that inverse-perovskites would be a new platform of environmentally-benign high-ZT thermoelectric materials.
Collapse
Affiliation(s)
- Xinyi He
- MDX Research Center for Element StrategyInternational Research Frontiers InitiativeTokyo Institute of Technology4259 Nagatsuta, MidoriYokohama226‐8501Japan
| | - Shigeru Kimura
- MDX Research Center for Element StrategyInternational Research Frontiers InitiativeTokyo Institute of Technology4259 Nagatsuta, MidoriYokohama226‐8501Japan
| | - Takayoshi Katase
- MDX Research Center for Element StrategyInternational Research Frontiers InitiativeTokyo Institute of Technology4259 Nagatsuta, MidoriYokohama226‐8501Japan
| | - Terumasa Tadano
- Research Center for Magnetic and Spintronic MaterialsNational Institute for Materials Science1‐2‐1 SengenTsukubaIbaraki305‐0047Japan
| | - Satoru Matsuishi
- MDX Research Center for Element StrategyInternational Research Frontiers InitiativeTokyo Institute of Technology4259 Nagatsuta, MidoriYokohama226‐8501Japan
- Research Center for Materials NanoarchitectonicsNational Institute for Materials Science1‐1 NamikiTsukuba, Ibaraki305‐0044Japan
| | - Makoto Minohara
- Research Institute for Advanced Electronics and PhotonicsNational Institute of Advanced Industrial Science and TechnologyTsukubaIbaraki305‐8568Japan
| | - Hidenori Hiramatsu
- MDX Research Center for Element StrategyInternational Research Frontiers InitiativeTokyo Institute of Technology4259 Nagatsuta, MidoriYokohama226‐8501Japan
- Laboratory for Materials and StructuresInstitute of Innovative Research, Tokyo Institute of Technology4259 NagatsutaMidori, Yokohama226‐8501Japan
| | - Hiroshi Kumigashira
- Institute of Multidisciplinary Research for Advanced MaterialsTohoku UniversitySendai980‐8577Japan
| | - Hideo Hosono
- MDX Research Center for Element StrategyInternational Research Frontiers InitiativeTokyo Institute of Technology4259 Nagatsuta, MidoriYokohama226‐8501Japan
- Research Center for Materials NanoarchitectonicsNational Institute for Materials Science1‐1 NamikiTsukuba, Ibaraki305‐0044Japan
| | - Toshio Kamiya
- MDX Research Center for Element StrategyInternational Research Frontiers InitiativeTokyo Institute of Technology4259 Nagatsuta, MidoriYokohama226‐8501Japan
| |
Collapse
|
2
|
Fukuda R, Tani M, Shibukawa S, Nobeyama T, Nomura T, Kato Y, Murakami T. Effects of lipoprotein nanoparticles' composition and size on their internalization in plant and mammalian cells. Genes Cells 2023; 28:881-892. [PMID: 37850683 DOI: 10.1111/gtc.13075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 10/02/2023] [Accepted: 10/05/2023] [Indexed: 10/19/2023]
Abstract
The internalization of engineered high-density lipoprotein nanoparticles (engineered lipoproteins [eLPs]) with different lipid and protein compositions, zeta potentials, and/or sizes were analyzed in representative plant and mammalian cells. The impact of the addition of a cell-penetrating peptide to eLPs on the internalization was very small in Bright Yellow (BY)-2 protoplasts compared with HeLa cells. When eLPs were prepared with one of the abundant lipids in BY-2 cells, digalactosyldiacylglycerol (DGDG) (eLP4), its internalization was dramatically increased only in HeLa cells. Such an increase in HeLa cells was also obtained for liposomes containing DGDG in a DGDG content-dependent manner. Increasing the size and zeta potential of eLPs improved their internalization in both HeLa cells and in BY-2 protoplasts but to quite varying degrees. Although eLPs tended to stay at the plasma membrane (PM) in BY-2 protoplasts with much less internalization, the PM-bound eLPs somehow promoted the internalization of coexisting nanobeads in cell culture media. These results provide fundamental insight into the future design of lipid nanoparticles for drug delivery in mammalian and plant cells.
Collapse
Affiliation(s)
- Ryosuke Fukuda
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, Toyama, Japan
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
| | - Misaki Tani
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Shiori Shibukawa
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Tomohiro Nobeyama
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Taiji Nomura
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Yasuo Kato
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Tatsuya Murakami
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, Toyama, Japan
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto, Japan
| |
Collapse
|
3
|
Utsunomiya N, Nakano S, Katsube M, Yamada S. Three-dimensional morphological analysis of the human spleen and its surrounding organs during the early fetal period. Congenit Anom (Kyoto) 2023; 63:154-163. [PMID: 37526049 DOI: 10.1111/cga.12530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 04/23/2023] [Accepted: 06/09/2023] [Indexed: 08/02/2023]
Abstract
The spleen has variations in its morphology and is considered to acquire a defined shape in the third month of gestation. However, few studies have investigated spleen development during the first 3 months of fetal life. This study aimed to determine the three-dimensional (3D) morphogenesis of the spleen during the third month of gestation. In this study, 30 fetal specimens (crown-rump length [CRL]: 22-103 mm) were subjected to magnetic resonance imaging analysis. We manually segmented the spleen, stomach, and adrenal gland, reconstructed 3D models, and analyzed the volume and shape of these organs. The results showed that the variation in spleen size was large compared to that in other organs. Spleen morphology was classified into six types based on the number of splenic surfaces as follows: two-faced, three-faced, four-faced, five-faced, ovoid, and irregular. Two-faced spleens were only observed in small specimens, whereas three- and four-faced spleens were observed in larger specimens. We also revealed that the number of fetal splenic surfaces increased as CRL enlarged. Additionally, 3D models indicated that some specimens formed their splenic surfaces without contact with the adjacent organs. This suggested that the splenic surface may be caused not only by pressure from the faced organs but also by an intrinsic program. This study may provide a better understanding of the normal development of the spleen during the early fetal period, and may potentially assist future studies in investigating congenital morphological anomalies of the spleen.
Collapse
Affiliation(s)
- Natsuko Utsunomiya
- Congenital Anomaly Research Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shiori Nakano
- Congenital Anomaly Research Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Motoki Katsube
- Department of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Shigehito Yamada
- Congenital Anomaly Research Center, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| |
Collapse
|
4
|
Hori A, Nishida T, Takashiba S, Kubota S, Takigawa M. Regulatory mechanism of CCN2 production by serotonin (5-HT) via 5-HT2A and 5-HT2B receptors in chondrocytes. PLoS One 2017; 12:e0188014. [PMID: 29145495 PMCID: PMC5690650 DOI: 10.1371/journal.pone.0188014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 10/29/2017] [Indexed: 11/19/2022] Open
Abstract
Serotonin (5-hydroxytryptamine: 5-HT) is recognized as a neurotransmitter in the central nerve system and as a regulator of systemic blood pressure in the peripheral tissues. Recently, it was reported that 5-HT2 receptors (5-HT2Rs) were expressed in cartilage tissues lacking both vessels and neurons, suggesting possible novel functions of 5-HT during cartilage development and regeneration. Our previous data indicated that CCN family protein 2/connective tissue growth factor (CCN2/CTGF) plays a central role in cartilage development and regeneration. Therefore, the aim of this study was to investigate the effect of 5-HT on the production of CCN2 in chondrocytes. Firstly, we showed that the mRNAs of 5-HT2R subtypes 5-HT2AR and 5-HT2BR, were expressed in a human chondrocytic cell line, HCS-2/8; however, 5-HT2CR mRNA was not detected. In addition, exogenously added 5-HT did not affect the 5-HT2AR and 5-HT2BR expressions. Next, we demonstrated that CCN2 production was increased by treatment with a 5-HT2AR agonist and the combination of 5-HT and 5-HT2BR antagonist. In contrast, treatment with a 5-HT2BR agonist and the combination of 5-HT and 5-HT2AR antagonist decreased CCN2 production. Furthermore, we showed that phosphorylation of Akt and p38 MAPK were increased by treatment with 5-HT2AR agonist, and that phosphorylation of PKCε, PKCζ, ERK1/2 and JNK were increased by treatment with 5-HT2BR agonist. Finally, we found that 5-HT2AR was localized in the growth plate, whereas 5-HT2BR was localized in the articular cartilage. These findings suggest that 5-HT promotes CCN2 production through the 5-HT2AR in growth plates, and that it represses CCN2 production through the 5-HT2BR in articular cartilage for harmonized development of long bones.
Collapse
MESH Headings
- Animals
- Calcium/metabolism
- Cartilage, Articular/metabolism
- Cell Line, Tumor
- Chondrocytes/metabolism
- Connective Tissue Growth Factor/biosynthesis
- Connective Tissue Growth Factor/genetics
- Gene Expression
- Growth Plate/metabolism
- Humans
- Ion Transport
- Male
- Mice
- Mice, Inbred C57BL
- Phosphorylation
- Protein Kinases/metabolism
- Receptor, Serotonin, 5-HT2A/metabolism
- Receptor, Serotonin, 5-HT2A/physiology
- Receptor, Serotonin, 5-HT2B/metabolism
- Receptor, Serotonin, 5-HT2B/physiology
- Serotonin/physiology
- Signal Transduction
Collapse
Affiliation(s)
- Ayaka Hori
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Pathophysiology-Periodontal science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takashi Nishida
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- * E-mail:
| | - Shogo Takashiba
- Department of Pathophysiology-Periodontal science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Satoshi Kubota
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Dental School, Okayama, Japan
| | - Masaharu Takigawa
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Dental School, Okayama, Japan
| |
Collapse
|