| First letter | Keywords | Number |
|---|
| 0-9 | 5-hydroxymethylfurfural (1), 2,2'-bipyridine (1), 13C metabolic flux analysis (1), 3D bioprinting (1), 1D and 2D nanomaterial (1), 3DIC (1) etc. | 11 |  |
|---|
| A | Antibody (9), Adsorption (8), Ammonia (7), Artificial phage (2), activated carbon (2), amine scrubbing (2) etc. | 127 | |
|---|
| B | Bacteriophage (3), Biodegradable plastic (3), Biogas (3), biosorption (2), Breakthrough curve (2), biomass (2) etc. | 75 | |
|---|
| C-CH | Catalyst (8), CFD (5), chitosan (5), Carbon Nanotube (5), Chemical looping (4), CFD simulation (4) etc. | 163 | |
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| CI-CZ | CO2 (7), Crystallization (5), CO2 capture (4), CO2 adsorption (4), CVD (3), Circular Economy (3) etc. | 118 | |
|---|
| D | deep eutectic solvent (9), Discrete element method (6), Distillation (3), Drug Delivery System (3), Dry reforming of methane (3), droplet (2) etc. | 119 | |
|---|
| E | Escherichia coli (5), Electrolysis (4), emulsion (3), electrocatalysts (3), Electroless plating (2), electric field (2) etc. | 102 | |
|---|
| F | formic acid (3), forward osmosis (3), FAOR (2), Flow reactor (2), Fluoride ion (2), Flame spray pyrolysis (2) etc. | 52 | |
|---|
| G | gold nanoparticles (4), Green chemistry (3), Graphene oxide (2), Green Transformation (2), Green Hydrogen (2), Generative AI (2) etc. | 56 | |
|---|
| H | Hydrogen (6), Hydrogenation (5), Hydrogel (5), Hydrolysis (3), heat transfer (3), Hydrogen storage (3) etc. | 105 | |
|---|
| I | Immobilized catalyst (3), interfacial polymerization (3), Ion exchange (2), Ionic liquids (2), ion-exchange resin (2), Immunology (1) etc. | 66 | |
|---|
| J | Japan (1) | 1 | |
|---|
| K | kLa (1), kinetics (1), KY (1), Kinetic Study (1), kinetic measurement (1), Korteweg Body Force (1) etc. | 9 | |
|---|
| L | life cycle assessment (4), liposome (4), lithium-ion battery (4), lithium ion battery (4), leaching (3), Lithium-ion batteries (3) etc. | 91 | |
|---|
| M-MH | Machine Learning (28), membrane (10), Methanation (9), Metal-organic frameworks (8), Metabolic engineering (7), Metal-organic framework (3) etc. | 134 | |
|---|
| MI-MZ | mixing (9), molecular dynamics (5), Microwave (4), Molecular dynamics simulation (4), Microbiome engineering (3), molecular informatic (2) etc. | 90 | |
|---|
| N | numerical simulation (8), Nanoparticles (6), nanoparticle (4), Nanofiltration (3), Nitrogen cycle (2), nucleation (2) etc. | 90 | |
|---|
| O | Organic solvent (2), organic solutions (2), Organic semiconductor (2), oxidative (1), ordered network channel (1), oxygen transfer coefficient (1) etc. | 43 | |
|---|
| P-PH | pervaporation (3), Photocatalyst (3), phage display (2), PET (2), photocatalysis (2), PFAS (2) etc. | 67 | |
|---|
| PI-PZ | Process design (8), process intensification (3), Plasma (3), Polymer particle (3), polyamide membrane (3), Protein Engineering (3) etc. | 109 | |
|---|
| Q | Quantitative Structure-Activity Relationship (1), Questionnaire Survey (1), quasi-real-time simulation (1), quality diversity (1), Quantum computing (1), quartz crystal microbalance (1) etc. | 6 | |
|---|
| R | Renewable Energy (5), Ribosome display (4), Reverse osmosis (3), Recycling (3), Regenerative medicine (3), reaction kinetics (2) etc. | 59 | |
|---|
| S-SO | Simulation (5), Solvent extraction (3), Self-assembly (2), Semiconductor (2), Semiconducting polymer (2), Solid-Liquid (2) etc. | 102 | |
|---|
| SP-SZ | Startup (5), Spiral catalyst (4), Structured catalyst (3), surface functionalization (2), statistical analysis (2), Sustainable (2) etc. | 80 | |
|---|
| T | The SCEJ Award for Outstanding Young Researcher (3), Therapeutic drug monitoring (3), Taylor-Couette flow (2), Thermal energy storage (2), transdermal delivery (2), Tableting (2) etc. | 66 | |
|---|
| U | UiO-66 (2), ultrafine bubble (1), used plastics (1), Used Reverse Osmosis Membranes (1), uroflowmetry (1), Ultraviolet B-induced skin damage (1) etc. | 11 | |
|---|
| V | VoF (3), Value Creation (3), VHH (2), Viscosity (2), Vancomycin (2), vesicle (2) etc. | 30 | |
|---|
| W | water treatment (5), Water electrolysis (4), Wastewater treatment (3), Woody biomass (2), wood tar (2), Water-in-oil emulsion (1) etc. | 37 | |
|---|
| X | Xylitol (1), X-ray imaging (1), X-ray structural analysis (1) | 3 | |
|---|
| Y | Yeast (2), Young academy of Japan (1), Yarrowia lipolytica (1) | 4 | |
|---|
| Z | zeolite (13), Zeolite membrane (2), Zeolites (1), Zn-air battery (1), Zonation (1), Zeolitic Imidazolate Framework (1) etc. | 20 | |
|---|
| 非英数字 | * (4) | 4 | |
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