OOIR: Observatory of International Research

Papers

(The H4-Index of Materials Today is 88. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-08-01 to 2025-08-01.)

Article	Citations
COVER	844
Front cover - Rainer Adelung et al.	406
Bio-based nanofibers promise versatile aerogels	312
Front cover - Zhiguo He et al.	311
How silicate nanoparticles can protect historic buildings	309
Inner cover 4 - Jing Liu et al.	294
First 3D-printed flexible OLED display demonstrated	279
Resistive random access memory based artificial neural network for brain-inspired neuromorphic computing	265
2D perovskitoids for enhanced photovoltaic stability	261
New shock-absorbing material could improve safety of helmets and vehicles	256
Editorial Board	219
Advanced interfacial phase change material: Structurally confined and interfacially extended superlattice	208
Intrinsic weaknesses of Co-free Ni–Mn layered cathodes for electric vehicles	205
3D bioprinting of multicellular scaffolds for osteochondral regeneration	200
Phase transition in two-dimensional monolayer (1L)-molybdenum disulfide induced by atomic S-basal plane gliding via synchrotron X-ray monochromatic beam radiation for superior electronic performance	193
On the role of charge transfer excitations in non-fullerene acceptors for organic photovoltaics	191
All-cellulose hydrogel with ultrahigh stretchability exceeding 40000%	187
Degradation mechanisms and lifetime extending strategy of phosphorescent and thermally activated delayed-fluorescence organic light-emitting diodes	186
Advances in the rational design of ionizable lipids for mRNA therapeutics	183
A NIR-II-emitting gold nanocluster-based drug delivery system for smartphone-triggered photodynamic theranostics with rapid body clearance	182
3D printed materials for combating antimicrobial resistance	179
Strongly enhanced charge density via gradient nano-doping for high performance elastic-material-based triboelectric nanogenerators	177
Rapid, one-pot, non-toxic and scalable synthesis of boron nitride nano-onions via lamp ablation	173
Nanograin–glass dual-phasic, elasto-flexible, fatigue-tolerant, and heat-insulating ceramic sponges at large scales	171
New printing skin method helps heal chronic wounds	168

Assessing how biowaste can be used in optical applications	163
Editorial Board	161
Front cover - Hang Zou et al.	159
Recycling PVC for a greener world	159
Flexible patch gives wounds the signal to heal	157
Stable molten salts hold the key to solar storage	153
CONTENTS 1	147
Anion-driven enabled functional nanomaterials from metal and metal oxide nanoparticles	146
Local structure modulations of single-atom catalysts in sulfur electrocatalysis: A comprehensive review	144
Energy-saving gas separation with boron nitride nanosheets	142
Biofabrication of engineered tissues by 3D bioprinting of tissue specific high cell-density bioinks	141
Surface-engineered chlorella alleviated hypoxic tumor microenvironment for enhanced chemotherapy and immunotherapy of first-line drugs	141
Stalling CO2 evolution at high voltage by a catalytically induced LiF-rich interphase	137
Self-healing solid-state polymer electrolytes for high-safety and long-cycle lithium-ion batteries	136
Resolving the early-stage nucleus structure and evolution in atomic systems	134
Dispersion-free highly accurate color recognition using excitonic 2D materials and machine learning	133
Intelligent systems using triboelectric, piezoelectric, and pyroelectric nanogenerators	133
Applications, materials, and fabrication of micro glass parts and devices: An overview	133
The structure, material and performance of multi-functional tactile sensor and its application in robot field: A review	131
Metals beyond tomorrow: Balancing supply, demand, sustainability, substitution, and innovations	130
Interfacial engineering of heterogeneous catalysts for electrocatalysis	126
One-stone-three-birds strategy: a graphdiyne oxide nanosheet-involved drug-formed immune-boosting hydrogel with dual responsivity for triple-modal cancer immunotherapy	126
Large-area photo-patterning of initially conductive EGaIn particle-assembled film for soft electronics	125
Pathways towards truly brain-like computing primitives	124
Sol-Gel nano TiO2 synthesis using TTIP: Latest trends, a comprehensive review of attribute optimization and various applications	123
Supersonic puncture-healable and impact resistant covalent adaptive networks	122
Ferroelectric interface for efficient sodium metal cycling in anode-free solid-state batteries	122
Chain engineering of carbonyl polymers for sustainable lithium-ion batteries	121
Spontaneous heteroassembly of 2D semiconducting van der Waals materials in random solution phase	118
Chemically and mechanically defined hyaluronan hydrogels emulate the extracellular matrix for unbiased in vivo and in vitro organoid formation and drug testing in cancer	117
Controllable structure-engineered janus and alloy polymorphic monolayer transition metal dichalcogenides by plasma-assisted selenization process toward high-yield and wafer-scale production	117
Advanced triboelectric materials for liquid energy harvesting and emerging application	116
Combining clays and crustacean shells to make a high-performance nanogenerator	115
Wearable textile captures energy from body movement to power devices	114
New nano semiconductor materials show promise	113
Se takes dual role in CdTe solar cell passivation	111
MOF sensor detects iodine gas with outstanding sensitivity	110
Defect-induced enhanced Raman scattering of two-dimensional materials	108
Continuous production of Cl-terminated MXenes by bubbling chemical vapor growth in molten salt	106
Multi-field driven hybrid catalysts for CO2 reduction: Progress, mechanism and perspective	105
Capturing the ultrahigh temperature response of materials with sub-scale tensile testing	102
Editorial Note: Wettability-patterned microchip for emerging biomedical materials and technologies by Yiwei Li, Bi-Feng Liu and Xingcai Zhang [Materials Today 51 (2021) 273–293]	102
Tailoring drug delivery systems by microfluidics for tumor therapy	102
Dynamic evolution of zinc directional deposition: Toward precise interface manipulation for reversible zinc metal anodes	100
Unraveling the molecular mechanisms of antisolvent action in localized high-concentration electrolytes for lithium metal batteries	99
Electrodeposition-enabled, electrically-transduced sensors and biosensors	98
A reversible perovskite air electrode for active and durable oxygen reduction and evolution reactions via the A-site entropy engineering	97
Cascades of Fano resonances in light scattering by dielectric particles	97
Design principles of microneedles for drug delivery and sampling applications	96
A minimally designed PD-L1-targeted nanocomposite for positive feedback-based multimodal cancer therapy	95

Pushing thermoelectric generators toward energy harvesting from the human body: Challenges and strategies	95
Front cover - Alexander Balandin et al.	94
Front cover - Lin Ding et al.	93
New 3D printing technique reduces part deformation	92
Bioinspired soft robot walks on water	92
Light-triggered nanoparticles hit the target	92
Editorial Board	91
Tribology of the diamond-silica interface	91
Editorial Board	90
Superb storage and energy saving separation of hydrocarbon gases in boron nitride nanosheets via a mechanochemical process	89
Editorial Board	88
MXene–polymer composite blocks electromagnetic pollution	88
High-k zwitterionic dielectric elastomers with internal plasticization for low-voltage actuation	88