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1. Structural-Size Control of Domain from Nano to Micro: Logical Balancing between Attractive and Repulsive Interactions in Two Dimensions

Author:
Ariga, Katsuhiko,   et al.   ; Narita, Takayuki; Kunitake, Toyoki; Oishi, Yushi;     Show all 4 Authors
Source:
Langmuir 2019 v.35 no.32 pp. 10383-10389
ISSN:
1520-5827
Subject:
electrostatic interactions; pH; perfluorocarbons; separation; sodium chloride
Abstract:
... Molecules aggregate to form a structure through various interactions involving dispersion force, electrostatic force, and so on. In two-dimensional systems, a surface energetic effect is further important for the molecular aggregation structure. We show that the domain size and its morphology in the mixed monomolecular film composed of hydrocarbon and fluorocarbon skeletons with different surface ...
DOI:
10.1021/acs.langmuir.9b01627

2. Mesoporous carbon cubes derived from fullerene crystals as a high rate performance electrode material for supercapacitors

Author:
Ariga, Katsuhiko,   et al.   ; Bairi, Partha; Maji, Subrata; Hill, Jonathan P.; Kim, Jung Ho; Shrestha, Lok Kumar;     Show all 6 Authors
Source:
Journal of materials chemistry A 2019 v.7 no.20 pp. 12654-12660
ISSN:
2050-7496
Subject:
capacitance; crystals; electrochemistry; electrodes; fullerene; porous media
Abstract:
... We report the thermal conversion of three-dimensional (3D) mesoporous crystalline fullerene C₇₀ cubes (MCFC) into mesoporous carbon with retention of the original cubic morphology. This newly synthesized cube morphology mesoporous carbon shows excellent electrochemical capacitive properties. Cyclic voltammetry and chronopotentiometry (charge–discharge) measurements reveal that this nanostructured ...
DOI:
10.1039/c9ta00520j

3. Construction of Coordination Nanosheets Based on Tris(2,2′-bipyridine)–Iron (Fe²⁺) Complexes as Potential Electrochromic Materials

Author:
Ariga, Katsuhiko,   et al.   ; Bera, Manas Kumar; Mori, Taizo; Yoshida, Takefumi; Higuchi, Masayoshi;     Show all 5 Authors
Source:
ACS applied materials & interfaces 2019 v.11 no.12 pp. 11893-11903
ISSN:
1944-8252
Subject:
chemical structure; color; electrochemistry; indium tin oxide; ions; iron; ligands; liquid-liquid interface; nanosheets; solvents; spectroscopy
Abstract:
... The coordination nanosheets (CONASHs) are emerging as a new class of functional two-dimensional materials, which are one of the most active research areas of chemistry and physics in this decade. Despite the success of various structural and functional CONASHs, the development of a new molecular structure to discover alluring functional CONASHs remains challenging. Herein, we report successful pre ...
DOI:
10.1021/acsami.8b22568

4. Langmuir Nanoarchitectonics from Basic to Frontier

Author:
Ariga, Katsuhiko,   et al.   ; Mori, Taizo; Li, Junbai;     Show all 3 Authors
Source:
Langmuir 2018 v.35 no.10 pp. 3585-3599
ISSN:
1520-5827
Subject:
liquid-air interface; liquids; nanotechnology; receptors
Abstract:
... Methodology to combine nanotechnology and these organization processes has been proposed as a novel concept of nanoarchitectonics, which can fabricate functional materials with nanolevel units. As an instant nanoarchitectonics approach, confining systems within a two-dimensional plane to drastically reduce translational motion freedom can be regarded as one of the rational approaches. Supramolecul ...
DOI:
10.1021/acs.langmuir.8b01434

5. Dynamic nanoarchitectonics: Supramolecular polymorphism and differentiation, shape-shifter and hand-operating nanotechnology

Author:
Ariga, Katsuhiko,   et al.   ; Shrestha, Lok Kumar; Mori, Taizo;     Show all 3 Authors
Source:
Current opinion in colloid & interface science 2018 v.35 pp. 68-80
ISSN:
1359-0294
Subject:
crystals; eggs; fullerene; receptors; robots; terminology; tripeptides
Abstract:
... Recently proposed novel nanoarchitectonics concept is based on the unification of nanotechnology and other constructive sciences such as supramolecular chemistry including self-assembly/self-organization to provide the functional nanostructures and materials through architecting efforts of nano-sized components. In this short review, we focus on the structural changes and related dynamic functions ...
DOI:
10.1016/j.cocis.2018.01.007

6. Hydrous ferric oxide nanoparticles hosted porous polyethersulfone adsorptive membrane: chromium (VI) adsorptive studies and its applicability for water/wastewater treatment

Author:
Ariga, Katsuhiko,   et al.   ; Abdullah, Norfadhilatuladha; Yusof, Norhaniza; Abu Shah, Muhammad Hafiz; Wan Ikhsan, Syarifah Nazirah; Ng, Zhi-Chien; Maji, Subrata; Lau, Woei Jye; Jaafar, Juhana; Ismail, Ahmad Fauzi;     Show all 10 Authors
Source:
Environmental science and pollution research international 2019 v.26 no.20 pp. 20386-20399
ISSN:
0944-1344
Subject:
adsorption; chromium; ferric oxide; filtration; mixing; models; nanoparticles; pH; roughness; sorption isotherms; wastewater treatment
Abstract:
... In this present study, adsorptive membranes for Cr(VI) ion removal were prepared by blending polyethersulfone (PES) with hydrous ferric oxide (HFO) nanoparticles (NPs). The effects of HFO NPs to PES weight ratio (0–1.5) on the physicochemical properties of the resultant HFO/PES adsorptive membranes were investigated with respect to the surface chemistry and roughness as well as structural morpholo ...
DOI:
10.1007/s11356-019-05208-9

7. Quinone-Facilitated Coordinated Bipyrene and Polypyrene on Au(111) by Capture of Gold Adatoms

Author:
Ariga, Katsuhiko,   et al.   ; Liu, Xinbang; Du, Yongping; Timmer, Alexander; Mönig, Harry; Wan, Xinling; Huang, Xinyan; Ji, Qingmin; Kan, Erjun; Hill, Jonathan P.; Fuchs, Harald; Kong, Huihui;     Show all 12 Authors
Source:
Journal of physical chemistry 2019 v.123 no.26 pp. 16281-16287
ISSN:
1932-7455
Subject:
X-ray photoelectron spectroscopy; bromine; chemical bonding; chemical reactions; density functional theory; gold; nanomaterials; quinones; scanning tunneling microscopy
Abstract:
... Precise “bottom-up” synthesis by surface-assisted chemical reaction provides advanced approaches for the fabrication of two-dimensional (2D) robust covalent nanostructures, which are bound to contain defects due to the irreversible properties of covalent bonds. The further introduction of metal–organic coordination interactions possessing self-correction abilities and yielding comparable stabiliti ...
DOI:
10.1021/acs.jpcc.9b04060

8. Microwires of Au–Ag Nanocages Patterned via Magnetic Nanoadhesives for Investigating Proteins using Surface Enhanced Infrared Absorption Spectroscopy

Author:
Ariga, Katsuhiko,   et al.   ; Melo, Antonio F. A. A.; Hassan, Ayaz; Macedo, Lucyano J. A.; Osica, Izabela; Shrestha, Lok Kumar; Ji, Qingmin; Oliveira, Osvaldo N.; Henzie, Joel; Crespilho, Frank N.;     Show all 10 Authors
Source:
ACS applied materials & interfaces 2019 v.11 no.20 pp. 18053-18061
ISSN:
1944-8252
Subject:
alcohol dehydrogenase; bilirubin oxidase; bovine serum albumin; cytochrome c; glucose oxidase; gold; infrared spectroscopy; magnetism; magnetite; nanogold; nanoparticles; silver
Abstract:
... The controlled assembly of metal nanoparticles into ordered structures interacting with biological molecules is an emerging concept in surface science. Here, bare magnetite nanoparticles (Fe₃O₄–NPs) were employed as nanoadhesives to capture hollow metallic nanostructures (Au–Ag nanocages) from aqueous suspensions, and these coupled nanostructures were patterned onto various types of substrate via ...
DOI:
10.1021/acsami.8b21815

9. Room and elevated temperature lithium-ion storage in structurally submicron carbon spheres with mechanistic

Author:
Ariga, Katsuhiko,   et al.   ; Dysart, Arthur D.; Phuah, Xin Li; Shrestha, Lok Kumar; Pol, Vilas G.;     Show all 5 Authors
Source:
Carbon 2018 v.134 pp. 334-344
ISSN:
0008-6223
Subject:
lithium batteries; X-ray diffraction; lithium; texture; nitrogen; equations; sorption; dielectric spectroscopy; ambient temperature; electrodes; models; carbon; elemental composition; heat treatment; Raman spectroscopy
Abstract:
... Lithium-ion storage in monodisperse submicron carbon spheres (SCS) depends on the inert atmosphere thermal treatment of sonochemically formed polymeric precursors. Battery electrodes of SCS present great initial capacity up to 861 and 1111 A h kg−1 at ambient temperatures 27 and 50 °C, respectively, when cycled at specific current 25 A h kg−1. Beyond initial formation cycles, interestingly, the gr ...
DOI:
10.1016/j.carbon.2018.01.024

10. Demonstration of a Novel Charge-Free Reverse Wormlike Micelle System

Author:
Ariga, Katsuhiko,   et al.   ; Aramaki, Kenji; Ooishi, Kaoru; Fujii, Misaki; Shrestha, Lok Kumar;     Show all 5 Authors
Source:
Langmuir 2018 v.34 no.29 pp. 8670-8677
ISSN:
1520-5827
Subject:
composite polymers; cosmetics; drugs; esters; fatty acids; integrated pest management; micelles; models; nanomaterials; oils; phosphatidylcholines; small-angle X-ray scattering; surfactants; viscoelasticity; viscosity
Abstract:
... We demonstrate a novel charge-free reverse wormlike micelle (RWLM) consisting of a ternary mixture of a nonionic amphiphilic block copolymer, fatty acid alkyl ester oil, and water under ambient conditions. Nonionic amphiphile tetra-[poly(oxyethylene)-poly(oxybutylene)]pentaerythrityl ether (TEBPE) self-assembled into spheroid-type micelles in nonaqueous media isopropyl myristate (IPM) with viscosi ...
DOI:
10.1021/acs.langmuir.8b01632

11. NMR Spectroscopic Determination of Enantiomeric Excess Using Small Prochiral Molecules B

Author:
Ariga, Katsuhiko,   et al.   ; Ishihara, Shinsuke; Labuta, Jan; Futera, Zdeněk; Mori, Shigeki; Sato, Hisako; Hill, Jonathan P.;     Show all 7 Authors
Source:
The Journal of physical chemistry 2018 v.122 no.19 pp. 5114-5120
ISSN:
1520-5207
Subject:
X-ray diffraction; ambient temperature; anisotropy; benzylamines; carboxylic acids; chemical interactions; diastereomers; enantiomers; magnetism; molecular conformation; nuclear magnetic resonance spectroscopy; optical isomerism; spectral analysis
Abstract:
... The use of chiral auxiliaries, which derivatize enantiomers to diastereomers, is an established technique for NMR spectroscopic analysis of chirality and enantiomeric excess (ee). Here we report that some small prochiral molecules exhibit ee-dependent splitting of ¹H NMR signals at room temperature based on acid/base interactions with chiral analytes, especially when either a chiral or prochiral a ...
DOI:
10.1021/acs.jpcb.8b03684

12. Highly active and reusable hydrotalcite-supported Pd(0) catalyst for Suzuki coupling reactions of aryl bromides and chlorides

Author:
Ariga, Katsuhiko,   et al.   ; Karanjit, Sangita; Kashihara, Masaya; Nakayama, Atsushi; Shrestha, Lok Kumar; Namba, Kosuke;     Show all 6 Authors
Source:
Tetrahedron 2018 v.74 no.9 pp. 948-954
ISSN:
0040-4020
Subject:
Suzuki reaction; catalysts; catalytic activity; chemical structure; chlorides; hydrotalcite; image analysis; nanoparticles; organobromine compounds; palladium; transmission electron microscopy
Abstract:
... A palladium(0) nanocluster supported on hydrotalcite has been prepared and tested for the Suzuki coupling reaction. The prepared catalyst showed very efficient catalytic activity for cross coupling of iodo- and bromoarenes under very mild reaction conditions, affording >90% yield. Under the optimized reaction conditions, chloroarenenes also showed very good reactivity. Transmission electron micros ...
DOI:
10.1016/j.tet.2017.12.056

13. Gold Nanoparticle Chains: Synthesis, Characterization, and Modeling Using Spectroscopic Ellipsometry C

Author:
Ariga, Katsuhiko,   et al.   ; Vieaud, Julien; Gao, Jie; Cane, Jérémy; Stchakovsky, Michel; En Naciri, Aotmane; Oda, Reiko; Pouget, Emilie; Battie, Yann;     Show all 9 Authors
Source:
Journal of physical chemistry 2018 v.122 no.22 pp. 11973-11984
ISSN:
1932-7455
Subject:
colloids; models; nanogold; physical chemistry; refractive index; solvents; spectroscopy
Abstract:
... In this paper, we explore the ability of ellipsometry to characterize colloidal suspensions composed of gold nanoparticle (NP) chains. The complex effective index of these suspensions is deduced from ellipsometric measurement by using a wavelength-by-wavelength inversion without any dispersion law. We show that the effective refractive index of these colloids is defined by the nature of the solven ...
DOI:
10.1021/acs.jpcc.8b01614

14. Fluoride-ion-binding promoted photoinduced charge separation in a self-assembled C₆₀ alkyl cation bound bis-crown ether-oxoporphyrinogen supramolecule

Author:
Ariga, Katsuhiko,   et al.   ; Webre, Whitney A.; Gobeze, Habtom B.; Shao, Shuai; Karr, Paul A.; Hill, Jonathan P.; D’Souza, Francis;     Show all 7 Authors
Source:
Chemical communications 2018 v.54 no.11 pp. 1351-1354
ISSN:
1364-548X
Subject:
absorption; ammonium; anions; chemical reactions; fluorides; hydrogen bonding; spectroscopy
Abstract:
... A bis-crown ether-oxoporphyrinogen was newly synthesized and self-assembled concurrently with C₆₀ alkyl ammonium cations at the crown ether sites and F⁻ anions (through hydrogen bonding) at the oxoporphyrinogen core. Ultrafast photoinduced charge transfer processes within the donor–acceptor conjugate were promoted by fluoride ion binding and this was established using various spectroscopic methods ...
DOI:
10.1039/c7cc09524d

15. Unidirectional Branching Growth of Dipeptide Single Crystals for Remote Light Multiplication and Collection

Author:
Ariga, Katsuhiko,   et al.   ; Li, Qi; Jia, Yi; Yang, Xiaoke; Dai, Luru; Das, Bidisa; Acharya, Somobrata; Sun, Bingbing; Yang, Yang; Liu, Xingcen; Li, Junbai;     Show all 11 Authors
Source:
ACS applied materials & interfaces 2018 v.11 no.1 pp. 31-36
ISSN:
1944-8252
Subject:
cis-trans isomers; crystals; density functional theory; dipeptides; evaporation; optical fibers
Abstract:
... Herein, we report on the unidirectional branched assembly of diphenylalanine dipeptide through a one-step rapid evaporation process. Large numbers of crystalline tubular branches with smooth surfaces are developed from a hexagonal solid microrod mimicking a “Christmas tree”. Density functional theory suggests the formation of tubular diphenylalanine aggregates with cis isomers. The diphenylalanine ...
DOI:
10.1021/acsami.8b18106

16. Central metal dependent modulation of induced-fit gas uptake in molecular porphyrin solids

Author:
Ariga, Katsuhiko,   et al.   ; Nishihara, Hirotomo; Ohwada, Mao; Kamimura, Takuya; Nishimura, Masato; Tanaka, Hideki; Hiraide, Shotaro; Miyahara, Minoru T.; Ji, Qingmin; Maruyama, Jun; Tani, Fumito;     Show all 11 Authors
Source:
Chemical communications 2018 v.54 no.56 pp. 7822-7825
ISSN:
1364-548X
Subject:
cations; chemical reactions; porphyrins
Abstract:
... The induced-fit accommodation of a variety of gaseous molecules including non-polar molecules has been demonstrated in porphyrin-based supramolecular architectures for the first time. Moreover, the gas uptake behaviour can be modulated by changing the central cation of porphyrin. ...
DOI:
10.1039/c8cc03646b

17. pH-Responsive Saloplastics Based on Weak Polyelectrolytes: From Molecular Processes to Material Scale Properties

Author:
Ariga, Katsuhiko,   et al.   ; Rydzek, Gaulthier; Pakdel, Amir; Witecka, Agnieszka; Awang Shri, Dayangku Noorfazidah; Gaudière, Fabien; Nicolosi, Valeria; Mokarian-Tabari, Parvaneh; Schaaf, Pierre; Boulmedais, Fouzia;     Show all 10 Authors
Source:
Macromolecules 2018 v.51 no.12 pp. 4424-4434
ISSN:
1520-5835
Subject:
Fourier transform infrared spectroscopy; centrifugation; differential scanning calorimetry; electrolytes; mechanical properties; mechanical stress; pH; polymers; porosity; scanning electron microscopy; thermogravimetry; water content
Abstract:
... Compact polyelectrolyte complexes (COPECs), also named saloplastics, represent a new class of material with high fracture strain and self-healing properties. Here, COPECs based on poly(methacrylic acid) (PMAA) and poly(allylamine hydrochloride) (PAH) were prepared by centrifugation at pH 7. The influence of postassembly pH changes was monitored chemically by ATR-FTIR, ICP, DSC, and TGA, morphologi ...
DOI:
10.1021/acs.macromol.8b00609

18. A graphene–polyurethane composite hydrogel as a potential bioink for 3D bioprinting and differentiation of neural stem cells

Author:
Ariga, Katsuhiko,   et al.   ; Huang, Chao-Ting; Kumar Shrestha, Lok; Hsu, Shan-hui;     Show all 4 Authors
Source:
Journal of materials chemistry B 2017 v.5 no.44 pp. 8854-8864
ISSN:
2050-7518
Subject:
biocompatible materials; biodegradability; bioprinting; body temperature; cell culture; culture media; graphene; graphene oxide; humans; hydrogels; manufacturing; metabolism; nanocomposites; nanomaterials; neural stem cells; oxygen; polyurethanes; rheological properties; tissue engineering; tissues
Abstract:
... 3D bioprinting is known as an additive manufacturing technology that builds customized structures from cells and supporting biocompatible materials for the repair of damaged tissues or organs. In this study, we prepared water-dispersible graphene and graphene oxide, which are 2D nanomaterials with high conductivity and potential applications in neural tissue engineering. Moreover, we synthesized a ...
DOI:
10.1039/c7tb01594a

19. Neural differentiation on aligned fullerene C₆₀ nanowhiskers

Author:
Ariga, Katsuhiko,   et al.   ; Hsieh, Fu-Yu; Shrestha, Lok Kumar; Hsu, Shan-hui;     Show all 4 Authors
Source:
Chemical communications 2017 v.53 no.80 pp. 11024-11027
ISSN:
1364-548X
Subject:
chemical compounds; chemical reactions; fullerene; nanocrystals; neural stem cells; neurons; tissue engineering
Abstract:
... Highly-aligned fullerene nanowhiskers (C₆₀ NWs) are prepared by a modified liquid–liquid interfacial precipitation method. Neural stem cells on the aligned C₆₀ NWs are oriented and have a high capacity to differentiate into mature neurons. The aligned C₆₀ NWs can serve as a functional scaffold for neural tissue engineering. ...
DOI:
10.1039/c7cc06395d

20. Novel solid-state luminous composites from a layered inorganic–organic monolith containing neutral porphyrins

Author:
Ariga, Katsuhiko,   et al.   ; Fujii, Kazuko; Hill, Jonathan P.; Hashizume, Hideo; Shimomura, Shuichi; Ando, Toshihiro;     Show all 6 Authors
Source:
Journal of materials science 2017 v.52 no.20 pp. 12156-12169
ISSN:
0022-2461
Subject:
absorption; chemical bonding; composite materials; films (materials); fluorescence; mixing; pigments; porphyrins; smectite; solvents; zinc
Abstract:
... We have succeeded in loading a neutral zinc porphyrin derivative (ZnTPPder) into a layered inorganic–organic compound, despite the well-known difficulties associated with incorporation of neutral pigments into the interlayer spaces of layered materials. We have utilized a synthetic alkylammonium–smectite monolith (A-Sm) as the host layered inorganic–organic compounds to facilitate porphyrin loadin ...
DOI:
10.1007/s10853-017-1305-1