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Shingo Yokota Last modified date:2021.10.25

Associate Professor / Sustainable Bioresources Science
Department of Agro-environmental Sciences
Faculty of Agriculture


Graduate School
Undergraduate School


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Homepage
https://kyushu-u.pure.elsevier.com/en/persons/shingo-yokota
 Reseacher Profiling Tool Kyushu University Pure
Phone
092-802-4677
Academic Degree
PhD
Field of Specialization
Polysaccharide materials chemistry
Total Priod of education and research career in the foreign country
00years03months
Research
Research Interests
  • Fabrication of new particle materials by interfacial fusion using bio-nanofibers
    keyword : Bio-nanofibers, Surface/interface, particle/powder, coating
    2021.04.
  • Surface chemical modification of cellulose nanomaterials
    keyword : Cellulose, Nanomaterial, Surface/interface, Chemical modification
    2010.10.
  • Structural and functional design of layered cellulosic materials
    keyword : Cellulose, Surface/interface, Self-assembly, Controlled polymerization
    2010.10.
Academic Activities
Reports
1. Blaise L. Tardy, Shingo Yokota, Mariko Ago, Wenchao Xiang, Tetsuo Kondo, Romain Bordes, Orlando J. Rojas, Nanocellulose–surfactant interactions, Current Opinion in Colloid & Interface Science, 2017.05, Biomass-derived nanomaterials, such as cellulose nanocrystals and nanofibrils, are attractive building blocks for the formulation of foams, emulsions, suspensions and multiphase systems. Depending on their surface chemistry, aspect ratio and crystallinity, nanocelluloses can control the rheology and stability of dispersions; they can also confer robust mechanical properties to composites. Synthetic modification of fibrillar cellulose is an option to achieve chemical compatibility in related systems, in the formation of composites, etc. However, this can also limit the environmental benefits gained from the use of the cellulosic component. Thus, an attractive mean to compatibilize and to further expand the applications of nanocelluloses is through the use of surfactants. The chemical toolbox of surfactants developed over the last 60 years allows for a large versatility while their environmental impact can also be minimized. Furthermore, relatively small amounts of surfactants are sufficient to significantly impact the interfacial forces, which has implications in material development, from the colloidal scale to the macro-scale. In this review we attempt to cover the literature pertaining to the combined uses of surfactants and nanocelluloses. We summarize reports on the incorporation with nanocellulose of nonionic, anionic, amphoteric and cationic surfactants. With the ever-expanding interest in the use of renewable materials in a vast range of applications, we hope to provide insights into the application of surfactants as a tool to tailor the compatibility and the surface chemistry of nanocelluloses..
2. Takuya Kitaoka, Shingo Yokota, Martina Opietnik, Thomas Rosenau, Synthesis and bio-applications of carbohydrate-gold nanoconjugates with nanoparticle and nanolayer forms, Materials Science and Engineering C: Materials for Biological Applications, 31(6), 1221-1229, 2011.08.
Papers
1. Koichiro Ishida, Shingo Yokota, Tetsuo Kondo, Emulsifying Properties of α-Chitin Nanofibrils Prepared by Aqueous Counter Collision, Journal of Fiber Science and Technology, 10.2115/fiberst.2021-0022, 77, 8, 203-212, 2021.08.
2. Koichiro Ishida, Shingo Yokota, Tetsuo Kondo, Localized surface acetylation of aqueous counter collision cellulose nanofibrils using a Pickering emulsion as an interfacial reaction platform, Carbohydrate Polymers, 10.1016/j.carbpol.2021.117845, 261, 117845-117845, 2021.02, ナノサイズの繊維状物質の自己組織化は、新たな三次元材料構築に重要なアプローチである。本研究では、水中カウンターコリジョン法によって調製される両親媒性セルロースナノファイバー(CNF)について、ピッカリングエマルションの油/水界面のみで表面アセチル化を施すことにより、その表面特性を制御することも目的とした。結果として、繊維形態を維持したままで局所的な表面化学改質に成功し、得られたナノ繊維が独特の自己凝集特性を有することが示された。.
3. Wenbo Ye, Shingo Yokota, Yimin Fan, Tetsuo Kondo, A combination of aqueous counter collision and TEMPO-mediated oxidation for doubled carboxyl contents of α-chitin nanofibers, Cellulose, 10.1007/s10570-021-03676-2, 28, 2167-2181, 2021.01.
4. Tsubasa Tsuji, Kunio Tsuboi, Shingo Yokota, Satomi Tagawa, Tetsuo Kondo, Characterization of an Amphiphilic Janus-Type Surface in the Cellulose Nanofibril Prepared by Aqueous Counter Collision, Biomacromolecules, 10.1021/acs.biomac.0c01464, 22, 2, 620-628, 2021.01, バイオベースの高性能ナノ繊維として知られるセルロースナノファイバーは、一般に親水性であると考えられているが、本研究では、水中カウンターコリジョン法によって調製されたセルロースナノファイバー(ACC-CNF)が疎水性と親水性面を備えた両親媒性「ヤヌス型繊維表面」を持つことを実験的かつ定量的に示した。.
5. Shingo Yokota, Satomi Tagawa, Tetsuo Kondo, Facile surface modification of amphiphilic cellulose nanofibrils prepared by aqueous counter collision, Carbohydrate Polymers, 10.1016/j.carbpol.2020.117342, 255, 117342-117342, 2021.03, 本研究は、水中カウンターコリジョン法によって調製されたセルロースナノファイバー(ACC-CNF)の表面化学修飾に関する報告である。水分散系で適度にアセチル化されたACC-CNFは、未修飾時よりも水分散性が向上しただけでなく、疎水性樹脂への吸着能や乳化特性にも向上がみられ、CNFの様々な分野での有用性がより高まったことを示した。.
6. Kohji Yamamoto, Takuya Tsubota, Tomohide Uno, Yutaro Tsujita, Shingo Yokota, Hideki Sezutsu, Kazuei Mita, A defective prostaglandin E synthase could affect egg formation in the silkworm Bombyx mori, Biochemical and Biophysical Research Communications, 10.1016/j.bbrc.2019.10.121, 521, 2, 347-352, 2020.01.
7. Shingo Yokota, Keita Kamada, Aki Sugiyama, Tetsuo Kondo, Pickering emulsion stabilization by using amphiphilic cellulose nanofibrils prepared by aqueous counter collision, Carbohydrate Polymers, 10.1016/j.carbpol.2019.115293, 226, 115293, 2019.12, 水中カウンターコリジョンによって調製されたセルロースナノファイバー(ACC-CNF)の乳化剤・乳化安定剤として特性を検討した。ACC-CNF分散水と各種非極性溶媒とを撹拌することによって、長期安定性を備えた水中油型ピッカリングエマルションが容易に得られ、他の製造法によって調製されたCNFと比較して、優位に高い乳化能力が示された。このことは、エマルション中の分散した油滴がACC-CNFで密に覆われるためであることが明らかとなった。.
8. Mayumi Hatakeyama, Daisuke Ryuno, Shingo Yokota, Hirofumi Ichinose, Takuya Kitaoka, One-step synthesis of cellooligomer-conjugated gold nanoparticles in a water-in-oil emulsion system and their application in biological sensing, Colloids and Surfaces B: Biointerfaces, 10.1016/J.colsurfb.2019.02.051, 178, 1, 74-79, 2019.06.
9. Siqi Huan, Shingo Yokota, Long Bai, Mariko Ago, Maryam Bohghei, Tetsuo Kondo, Orlando J Rojas, Formulation and Composition Effects in Phase Transitions of Emulsions Costabilized by Cellulose Nanofibrils and an Ionic Surfactant, Biomacromolecules, 10.1021/acs.biomac.7b01452, 18, 12, 4393-4404, 2017.12.
10. Kunio Tsuboi, Shingo Yokota, Tetsuo Kondo, Difference between bamboo- and wood-derived cellulose nanofibers prepared by the aqueous counter collision method, Nordic Pulp & Paper Research Journal, 29, 1, 69-76, 2014.02.
11. Yoshiike Y., Yokota S., Tanaka N., Kitaoka T., Wariishi H., Preparation and cell culture behavior of self-assembled monolayers composed of chitohexaose and chitosan hexamer, Carbohydrate Polymers, 82, 1, 21-27, 2010.08.
12. Yokota S., Matsuyama K., Yamamoto H., Kitaoka T., Wariishi H., Specific attraction at the carboxyl terminus of fatty acid/oxidized aluminum interface for the sizing appearance of fiber-network materials, Sen’i Gakkaishi, 65, 12, 332-337, 2009.12.
13. Yokota S., Ohta T., Kitaoka T., Wariishi H., Adsorption of cellobiose-pendant polymers to a cellulose matrix determined by quartz crystal microbalance analysis, BioResources, 4, 3, 1098-1108, 2009.08.
14. Yokota S., Ohta T., Kitaoka T., Ona T., Wariishi H., Preparation of cellobiose-conjugated polyacrylamide and its interaction with a cellulose matrix for papermaking application, Sen’i Gakkaishi, 65, 8, 212-217, 2009.08.
15. Esaki K., Yokota S., Egusa S., Okutani Y., Ogawa Y., Kitaoka T., Goto M., Wariishi H., Preparation of lactose-modified cellulose films by a nonaqueous enzymatic reaction and their biofunctional characteristics as a scaffold for cell culture, Biomacromolecules, 10, 5, 1265-1269, 2009.05.
16. Yokota S., Ohta T., Kitaoka T., Ona T., Wariishi H., Preparation and characteristics of anionic polyacrylamides containing direct dye with a high affinity for cellulose, BioResources, 4, 2, 497-508, 2009.05.
17. Egusa S., Yokota S., Tanaka K., Esaki K., Okutani Y., Ogawa Y., Kitaoka T., Goto M., Wariishi H., Surface modification of a solid-state cellulose matrix with lactose by a surfactant-enveloped enzyme in a nonaqueous medium, Journal of Materials Chemistry, 19, 13, 1836-1842, 2009.04.
18. Yokota S., Matsuo K., Kitaoka T., Wariishi H., Retention and paper-strength characteristics of anionic polyacrylamides conjugated with carbohydrate-binding modules, BioResources, 4, 1, 234-244, 2009.02.
19. Yokota S., Kitaoka T., Opietnik M., Rosenau T., Wariishi H., Synthesis of gold nanoparticles for in situ conjugation with structural carbohydrates, Angewandte Chemie International Edition, 47, 51, 9866-9869, 2008.12.
20. Yokota S., Kitaoka T., Wariishi H., Biofunctionality of self-assembled nanolayers composed of cellulosic polymers, Carbohydrate Polymers, 74, 3, 666-672, 2008.11.
21. Yokota S., Matsuo K., Kitaoka T., Wariishi H., Specific interaction acting at a cellulose-binding domain/cellulose interface for papermaking application, BioResources, 3, 4, 1030-1041, 2008.11.
22. Yokota S., Ueno T., Kitaoka T., Wariishi H., Molecular imaging of single cellulose chains aligned on a highly oriented pyrolytic graphite surface, Carbohydrate Research, 342, 17, 2593-2598, 2007.12.
23. Yokota S., Ueno T., Kitaoka T., Tatsumi D., Wariishi H., Morphological imaging of single methylcellulose chains and their thermoresponsive assembly on a highly oriented pyrolytic graphite surface, Biomacromolecules, 8, 12, 3848-3852, 2007.12.
24. Yokota S., Kitaoka T., Sugiyama J., Wariishi H., Cellulose I nanolayers designed by self-assembly of its thiosemicarbazone on a gold substrate, Advanced Materials, 19, 20, 3368-3370, 2007.10.
25. Ueno T., Yokota S., Kitaoka T., Wariishi H., Conformational changes in single carboxymethylcellulose chains on a highly oriented pyrolytic graphite surface under different salt conditions, Carbohydrate Research, 342, 7, 954-960, 2007.05.
26. Yokota S., Kitaoka T., Wariishi H., Surface morphology of cellulose films prepared by spin coating on silicon oxide substrates pretreated with cationic polyelectrolyte, Applied Surface Science, 253, 9, 4208-4214, 2007.02.
27. Yokota S., Matsuyama K., Kitaoka T., Wariishi H., Thermally responsive wettability of self-assembled methylcellulose nanolayers, Applied Surface Science, 253, 11, 5149-5154, 2007.03.
28. Matsuyama K., Yokota S., Kitaoka T., Wariishi H., Surface morphology and wetting characteristics of sized cellulose imitations, Sen’i Gakkaishi, 62, 4, 89-94, 2006.04.
Presentations
1. Masato Kamogawa, Shingo Yokota, Tetsuo Kondo, Crystallization behavior of polypropylene induced by amphiphilic Janus naocellulose as a scaffold, 第69回高分子学会年次大会, 2020.05.
2. Wenbo Ye, Tianjuan Jie, Shingo Yokota, Yimin Fan, Tetsuo Kondo, SURFACE FUNCTIONALIZATION VIA TEMPO-MEDIATED OXIDATION OF CHITIN NANOFIBERS PREPARED BY AQUEOUS COUNTER COLLISION, 2019 Pusan-Gyeongnam/Kyushu-Seibu Joint Symposium on High Polymers(19th) and Fibers(17th), 2019.10.
3. Sawa Miyake, Shingo Yokota, Tetsuo Kondo, QUANTIFICATION OF ADSORPTION ENERGY OF ACCNANOCELLULOSES AT OIL/WATER INTERFACE BY USING PENDANT DROP TENSIOMETRY
, 2019 Pusan-Gyeongnam/Kyushu-Seibu Joint Symposium on High Polymers(19th) and Fibers(17th), 2019.10.
4. Koichiro Ishida, Shingo Yokota, Tetsuo Kondo, ADSORPTION PROPERTIES OF ACC-NANOCELLULOSE TO POLYSTYRENE MICROSPHERE HAVING DIFFERENT DIAMETER, 2019 Pusan-Gyeongnam/Kyushu-Seibu Joint Symposium on High Polymers(19th) and Fibers(17th), 2019.10.
5. Masato Kamogawa, Satomi Tagawa, Gento Ishikawa, Shingo Yokota, Tetsuo Kondo, CRYSTALLIZATION BEHAVIOR OF POLYPROPYLENE ON 3D-HONEY COMB SCAFFOLDS OF ACC-NANOCELLULOSE
, 2019 Pusan-Gyeongnam/Kyushu-Seibu Joint Symposium on High Polymers(19th) and Fibers(17th), 2019.10.
6. Hayate Kuroyanagi, Shingo Yokota, Tetsuo Kondo, FABRICATION OF ELASTOMER REINFORCED WITH NANOCELLULOSE HONEYCOMB CELL, 2019 Pusan-Gyeongnam/Kyushu-Seibu Joint Symposium on High Polymers(19th) and Fibers(17th), 2019.10.
7. Akiko Goto, Shingo Yokota, Tetsuo Kondo, CHEMICAL-FREE FABRICATION OF BAMBOO ACC-NANOFIBRIL VIA AUTOCLAVE PRETREATMENT
, 2019 Pusan-Gyeongnam/Kyushu-Seibu Joint Symposium on High Polymers(19th) and Fibers(17th), 2019.10.
8. Tsubasa Tsuji, Kunio Tsuboi, Shingo Yokota, Tetsuo Kondo, SURFACE ANALYSIS OF AMPHIPHILIC JANUS STRUCTURE ON ACC-NANOCELLULOSE, 2019 Pusan-Gyeongnam/Kyushu-Seibu Joint Symposium on High Polymers(19th) and Fibers(17th), 2019.10.
9. Shingo Yokota, Koki Miura, Tetsuo Kondo, Oriented deposition of bacterial nanocellulose induced by nematic ordered cellulose templates with unique surface energy distribution, 257th American Chemical Society National Meeting & Exposition 2019, 2019.04.
10. Eiko Megan Uchida, Shingo Yokota, Tetsuo Kondo, Novel nanocomposites prepared from polypropylene micro-particles coated with amphiphilic ACC bamboo nanocellulose, The 4th International Cellulose Conference 2017, 2017.10.
11. Shingo Yokota, Koki Miura, Tetsuo Kondo, Oriented deposition of nanocellulose secreted from Gluconacetobacter xylinus induced by nematic ordered cellulose templates with unique surface energy distribution, The 4th International Cellulose Conference 2017, 2017.10.
12. Orlando J. Rojas, Siqi Huan, Long Bai, Shingo Yokota, Mariko Ago, Maryam Borghei, Wenchao Xiang, Tetsuo Kondo, Nanocellulose-surfactant interactions and their role in emulsions, The 4th International Cellulose Conference 2017, 2017.10.
13. Shingo Yokota, Keita Kamada, Mariko Ago, Orlando J. Rojas, Tetsuo Kondo, Surface active nanocellulose prepared by the aqueous counter collision method, 5th EPNOE Internationla Polysaccharide Conference, 2017.08.
14. Shingo Yokota, Keita Kamada, Mariko Ago, Orlando J. Rojas, Tetsuo Kondo, Emulsification Behavior of Amphiphilic Nanocellulose Prepared by Aqueous Counter Collision, International Conference on Nanotechnology for Renweable Materials 2017, 2017.06.
15. Siqi Huan, Shingo Yokota, Mariko Ago, Maryam Borghei, Tetsuo Kondo, Orlando J. Rojas, Cellulose nanofibrils in emulsions stabilized by anionic surfactant and effect of electrolyte in phase transitions, 253rd American Chemical Society National Meeting & Exposition, 2017.04.
16. Tetsuo Kondo, Tsuboi Kunio, Shingo Yokota, Determination of hydrophobicity in amphiphilic nanocellulose imparted by Aqueous Counter Collision (ACC), 253rd American Chemical Society National Meeting & Exposition, 2017.04.
17. Shingo Yokota, Keita Kamada, Tetsuo Kondo, Pickering emulsion stabilized using amphiphilice ACC-nanocellulose, Recent advances in cellulose nanotechnology research, 2016.10.
18. Airi Nishimoto, Shingo Yokota, Tetsuo Kondo, Surface activation of ACC-nanocellulose for chemical modification in an aqueous system, 251st American Chemical Society National Meeting & Exposition, 2016.03.
19. Shingo Yokota, Tetsuo Kondo, Chemical modification of cellulose nanofibers via surface activation in an aqueous dispersion system, 2016 EMN Cellulose Meeting, 2016.03.
20. Keita Kamada, Shingo Yokota, Tetsuo Kondo, Pickering emulsion stabilized using amphiphilic cellulose nanofibers prepared by the aqueous counter collision method, The International Chemical Congress of Pacific Basin Societies 2015, 2015.12.
21. Shingo Yokota, Shiro Sakoda, Tetsuo Kondo, Interfacial molecular design of nematic ordered cellulose templates for epitaxial nanodeposition, International Symposium on Wood Science and Technology 2015, 2015.03.
22. Hikari Utsunomiya, Shingo Yokota, Tetsuo Kondo, Preferential subfibrillation from reducing ends in the initial stage of nano-pulverization using aqueous counter collision, International Symposium on Fiber Science and Technology (ISF2014) , 2014.09.
23. Yutaro Tsujita, Shingo Yokota, Tetsuo Kondo, Self-assembling behaviors of collagen nanofibers in the aqueous dispersions prepared by the aqueous counter collision method, International Symposium on Fiber Science and Technology (ISF2014) , 2014.09.
24. Shingo Yokota, Tetsuo Kondo, Surface reactivity in an aqueous system of bio-nanofibers prepared by the aqueous counter collision method, International Symposium on Fiber Science and Technology (ISF2014) , 2014.09.
25. Yutaro Tsujita, Shingo Yokota, Tetsuo Kondo, Collagen nanofibers as a novel building block prepared by the aqueous counter collision method, 247th ACS National Meeting, 2014.03.
26. Kunio Tsuboi, Shingo Yokota, Tetsuo Kondo, Difference between bamboo- and wood-derived cellulose nanofibers prepared by aqueous counter collision method, 20143 Kyushu-Seibu/Pusan-Gyeongnam Joint Symposium on High Polymers(16th) and Fibers(14th), 2013.11.
27. Shingo Yokota, Shiro Sakoda, Tetsuo Kondo, Interfacial design of nano-sized and nano-structured cellulose materials by chemical modification, The 3rd EPNOE 2013 International Polysaccharide Conference, 2013.10.
28. Hikari Utsunomiya, Shingo Yokota, Tetsuo Kondo, Preferential cleavage of reducing ends in cellulose fibers for nano-pulverization using aqueous counter collision, The 3rd EPNOE 2013 International Polysaccharide Conference, 2013.10.
29. Saki Nagamoto, Tetsuya Takahashi, Shingo Yokota, Tetsuo Kondo, Polysaccharide nanofibers secreted by the pink snow mold fungus in Antarctica depending on temperature stress, The 3rd EPNOE 2013 International Polysaccharide Conference, 2013.10.
30. Shingo Yokota, Tetsuo Kondo, Surface acetylation of cellulose-based nanofibers prepared by aqueous counter collision
, The 17th International Symposium on Wood, Fibre and Pulping Chemistry, 2013.06.