Journal of Materials Chemistry B
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2026
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IF 6.2
Jiahao Du,Yunyun Sun,Dong Yu,Shengwei Lu,Simin Yu,Mei Wang,Guoqing Zhou,Songxin Xu,Lei Zhang,Yefei Zhu,Longxiang Zhou
Inflammatory bowel disease (IBD) is a refractory gastrointestinal disorder characterized by sustained intestinal inflammation, mucosal barrier dysfunction, and gut dysbiosis. Excess reactive oxygen species (ROS) is a key driver of these pathological processes. Although CeO₂-based nanozymes can scavenge ROS, its clinical application is limited by poor aqueous stability. Here, we developed an oral nanozyme by co-encapsulating ultrasmall CeO₂ nanoparticles and the clinical drug 5-aminosalicylic acid (5-ASA) within liposomes. The resulting formulation (CeLA) exhibited excellent colloidal stability and robust ROS-scavenging activity, and provided marked cytoprotection against oxidative stress in vitro. In a dextran sulfate sodium (DSS)-induced colitis model, CeLA alleviated clinical symptoms, restored intestinal barrier integrity, and suppressed pro-inflammatory cytokine expression. Notably, CeLA also reshaped the dysbiotic gut microbiome by reducing pro-inflammatory bacterial taxa. This multifunctional nanozyme integrates antioxidant, anti-inflammatory, and microbiome-modulating effects, offering a promising therapeutic strategy for IBD.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Xin An,Xinyue Zhang,Hao Zhang,Yuhan Liu,Jianglin Chen,Jingli Shi,Gang Shao,Hongliang Xu,Hailong Wang,Hongxia Lu
Metal halide double perovskite Cs₂AgInCl₆, as an environmentally friendly direct-bandgap semiconductor, emerged as a strong candidate for a new generation of environmentally friendly and stable photocatalysts due to its long carrier lifetime, non-toxicity, and moisture resistance. However, due to parity-forbidden transitions and high sensitivity to water, achieving higher-efficiency photocatalytic degradation in water remained an urgent challenge. Our study presented for the first time a high-entropy Cs 2 AgInCl 6 material Cs₂(Na₁/₂Ag₁/₂)(Mn₁/₃In₁/₃Bi₁/₃)Cl₆ (ANIBM DPNCs), which exhibited a remarkable visible light responsive and applicable to degrade pollutants in aqueous environments. In comparison with existing photocatalysts within the halide perovskite family, ANIBM DPNCs has been shown to exhibit higher photocatalytic efficiency and to demonstrate low sensitivity to various environments such as water and oxygen. Within 30 min, the RhB (10 mg/L) was completely degraded, while demonstrating comprehensive phase stability. Following four cycles of reuse and four months of atmospheric exposure, ANIBM DPNCs exhibited no structural alteration and retained its original photocatalytic performance. Notably, at elevated temperatures of 483 K, a remarkable resilience was exhibited, with the material retaining its original crystal structure. The results demonstrated that this material can be efficiently synthesized, is non-toxic, and exhibited outstanding photocatalytic performance and stability. This advancement successfully overcame the limitations of Cs 2 AgInCl 6 in photocatalysis, which were previously restricted to ultraviolet response and degradation in ethanol solutions. Our research provided a solid foundation for the transformation of Cs 2 AgInCl 6 from a low-efficiency luminescent material into a high-performance photocatalyst.
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Materials Today Chemistry
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2026
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IF 7.4
Aoshen Wei,Sisi Liu,Tianyu Luo,Kangcan Si,He Li,Junlin Wang,Yong Xia,Xiaoyan Wen,Haifei Lu,Ming-Yu Li
A facile and novel bilayer HTL is demonstrated to enhance the performance of PbS QDs photovoltaics. • The advanced bilayer HTL shows “crack-healing” effect while maintains well -matched energy levels with photoactive layer. • The advanced bilayer HTL exhibits remarkably suppressed trap states and high film quality. • As results, high-performance narrowed-bandgap PbS QDs IR cells are achieved with a champion IR PCE of 1.52%. PbS quantum dots (QDs) infrared (IR) solar cells, able to convert low-energy IR photons into electron-hole pairs, are hopeful photovoltaic devices because it broadens the utilization range of the solar spectrum to IR region. Currently, PbS infrared solar cells usually apply small-sized PbS QDs treated with 1,2-ethanedithiol as hole transport layer (HTL) by solid-state ligand exchange (SSLE) method. However, cracks are prone to generate in HTL due to volume shrinkage in SSLE process, resulting in deterioration of devices performance. Here, a facile and novel bilayer PbS QDs HTL is demonstrated by applying QDs synthesized via different methods to form bilayer structures. It is discovered that bilayer structure can “healing” the film cracks and reduce trap states, which is contributed to the carrier separation and extraction in devices. Meanwhile, the advanced bilayer HTL maintains the well-match energy levels with the narrowed-bandgap PbS QDs photoactive layer. As results, superior average AM1.5 PCE of 10.45% (the champion device achieved 12.27%) and average infrared PCE (IR PCE) of 1.24% (the champion device achieved 1.52%) were obtained in devices with the bilayer HTL, demonstrating a facile and reliable approach to enhance the performance of optoelectronic devices. A facile and novel bilayer HTL is demonstrated to improve device performance. Download: Download high-res image (338KB) Download: Download full-size image
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Chemistry-Switzerland
·
2026
·Vol. 8
·期 3
·30
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IF 2.6
Keyujia Zhong,Fang Lei,Shiqing Dang,Hongyang Zhang,Ying Shi,Haohong Chen
Perovskite quantum dots (PQDs) face significant performance limitations due to surface defects, which are not sufficiently addressed by conventional single-passivation methods. We introduce a dual-passivation strategy that synergistically combines bifunctional ligand 3-(N,N-dimethyloctadecylammonium)-propanesulfonate (SB3-18) treatment with silica coating to simultaneously passivate undercoordinated Pb2+ions and bromine vacancies in red-emitting CsPb(Br/I)3PQDs. This approach nearly triples the photoluminescence quantum yield (PLQY, from 23% to 58%). Systematic structural, morphlogical, binding energy, Fermi level and optical analyses confirm effective defect suppression and enhanced exciton luminescence. The dual-passivated sample QDs:SB3-18@SiO2also exhibit excellent environmental stability, retaining 85% of their initial emission after 30 min in air and exhibiting improved UV resistance. By combining the PQDs with a CGSO:Tb3+mechanoluminescent phosphor, a composite film is fabricated with bimodal optical response—color-selective photoluminescence under UV excitation and stress-activated green emission upon scratching. This work presents a robust route to high-performance PQDs and demonstrates their potential for advanced anticounterfeiting and smart optical applications.
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Biomaterials Research
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2026
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IF 9.8
Lan Lan,Qingde Zhou,Shuangxue Pan,Hui Liu,Yongzhong Du,Cuiping Guan,Xiuzu Song,Wei Wang
Androgenetic alopecia (AGA), a prevalent form of hair loss disorder, is pathologically characterized by dermal papilla cell (DPC) senescence driven by the dual pathogenic effects of excessive dihydrotestosterone accumulation and reactive-oxygen-species-mediated oxidative stress. Current clinical treatment strategies are challenged by poor hair follicle targeting, short retention times, and limited efficacy due to single-pathway interventions. To address these limitations, we developed a DPC-targeted, dual-functional finasteride/cerium oxide nanoparticle (L-LP-Fi/CeNP) drug delivery system designed to synergistically counteract DPC senescence through concurrent dihydrotestosterone inhibition and reactive oxygen species scavenging. By actively targeting the DPC-specific surface marker leptin receptor, this system notable enhanced cutaneous penetration depth and prolonged intrafollicular drug retention. Within the pathological microenvironment, the combined action of finasteride and CeNPs down-regulated senescence markers (p16/pRb) via dual-pathway synergy, effectively reversing cellular senescence and restoring the hair-inductive capacity of DPCs. In AGA mouse models, L-LP-Fi/CeNPs exhibited hair regenerative efficacy comparable to, and in some aspects modestly improved over, that of minoxidil, the current clinical standard treatment. This study presents a novel targeted therapeutic strategy combining small-molecule drug synergism with nanotechnology, which offers a promising prospect for AGA treatment.
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APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Duna Su,Jingsheng Ma,Chuanli Wu,Xiaobo Hu,Wan Jiang,Lianjun Wang,Xiuxun Han
Lead-free Cs 3 Cu 2 I 5 perovskite nanocrystals (NCs) are promising candidates for optoelectronic applications owing to their non-toxicity and intrinsic blue emission. However, their practical application is hindered by defect-dominated low photoluminescence quantum yield (PLQY) and poor environmental stability. Herein, we propose an ultrafast liquid‑nitrogen (LN) quenching strategy integrated with one‑pot synthesis, which delivers an ultra‑high cooling rate of 35 K/s faster than conventional ice‑water (IW) cooling (1 K/s). This abrupt thermal termination effectively suppresses Ostwald ripening, ion migration and surface ligand detachment, thereby promoting uniform size distribution, inducing lattice contraction and reducing the non-radiative defects. The obtained Cs 3 Cu 2 I 5 NCs exhibit a remarkable PLQY up to 85% and exceptional stability, maintaining beyond 80% of initial PL intensity after ambient storage for 35 days, aqueous exposure for 36 h and continuous UV irradiation for 48 h. Moreover, the LN-quenched NCs were successfully integrated into X-ray scintillator film achieving a spatial resolution of 10 lp/mm, and their colloidal ink enabled stimulus-responsive information encryption and fluorescence anti-counterfeiting patterns, attributed to enhanced self-trapped exciton (STE) emission and robust structural integrity. This work establishes ultrafast LN quenching as a universal and feasible strategy for fabricating highly luminescent and stable perovskite NCs, paving the way for multifunctional optoelectronic applications.
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CERAMICS INTERNATIONAL
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2026
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IF 6
Sijia Xu,Fengchao Wang,Jinfang Kong,Canyun Zhang,Lan Li,Jin Chen,Jing Yang,Yu Sun
High Mn 2+ doping concentration can lead to the formation of high-density defects/trap states, which serve as non-radiative recombination centers, seriously restricting the energy transfer efficiency from the host nanocrystals to Mn 2+ . Herein, we introduce Cd 2+ into Mn 2+ -doped CsPb(BrCl) 3 nanocrystalline (NCs) film to effectively suppress non-radiative recombination. The analysis of the structure and composition confirmed the phase and chemical composition of the Cd 2+ -Mn 2+ co-doped CsPb(BrCl) 3 NCs film. Steady-state and time-resolved photoluminescence (PL) spectra revealed the enhanced optical properties of the co-doped CsPb(BrCl) 3 NCs film. The Mn 2+ emission peak is studied in the temperature range of 80 K–300 K. Strong electron-phonon coupling causes an anomalous blueshift and linewidth broadening of the Mn 2+ emission peak with increasing temperature. Temperature-dependent PL spectra confirmed that the energy transfer between the exciton emission peak and the Mn 2+ emission peak was regulated through Cd 2+ doping, achieving the negative thermal quenching effect. This study utilized C 9 H 23 NO 3 Si (APTES) for the surface encapsulation of the NCs film to enhance their stability. Substituting Pb 2+ with Cd 2+ and Mn 2+ enhances the stability of the nanocrystals and alleviates lattice distortion within the [PbCl 6 ] 4- octahedral framework. The experimental results indicate that the Mn 2+ emission peak of the co-doped CsPb(BrCl) 3 NCs film retains 80.7% of its luminescent intensity after 31 days of storage in air, thereby confirming its excellent optical stability.
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Applied Materials Today
·
2026
·
IF 7
Zijun Yan,Yue Sun,Yurong Dai,Shuhui Wang,Guolong Chen,Yue Lin,Huanhua Wang,Hao-Chung Kuo,Zhong Chen,Tingzhu Wu
Atomic layer deposition (ALD) presents a promising avenue for improving the environmental stability of perovskite quantum dots (PQDs). However, standard ALD processes (120–200 °C) inevitably compromise the PQD lattice structure, while lower temperatures yield porous, non-protective films. To overcome this trade-off, we developed a sequential-temperature ALD strategy that synergizes low-temperature surface passivation with high-temperature densification. First, a low-temperature (65 °C) ALD stage deposits a surface modification layer around PQDs, which leverages energetic precursor molecules to selectively passivate surface/lattice defects, effectively suppressing non-radiative recombination within PQDs and boosting their luminescence efficiency. Crucially, this initial layer plays a pivotal role in preventing thermal degradation of the perovskite during subsequent processing and generates a hydroxyl‑rich surface. These reactive sites facilitate the second stage, a high-temperature (120 °C) ALD, to rapidly deposit a dense Al 2 O 3 protective barrier layer. Remarkably, this sequential process induces the formation of a chemically graded Pb–O–Al–O–Al 2 O 3 interfacial structure remediating defects within the initial layer, exhibiting intrinsic self-healing capability. The resulting CsPbBr 3 /Al 2 O 3 composite manifests exceptional environmental stability, particularly against moisture, representing one of the best performances reported to date for ALD-encapsulated bulk CsPbBr 3 films. Unlike complex hybrid encapsulation schemes, our streamlined, standalone ALD approach enables scalable PQD modification. White light-emitting diodes fabricated with these encapsulated PQDs demonstrate a wide color gamut (∼120% NTSC) and remarkable spectral stability. This work establishes a generalizable paradigm for ALD encapsulation of thermally sensitive materials.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
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IF 19.9
Xue Zheng,Yuanzhi Wang,Wenjie Ming,Guohua Zhong,Qianqian Wu,Yan Shao,Chuanlai Ren,Haoran Wang,Jie Zhang,Yang Bai,Wenjun Hou,Ming Chen,Jian-Xin Tang,Chunlei Yang
Quasi-two-dimensional (quasi-2D) Ruddlesden-Popper (RP) perovskites characterized by self-assembled multiple-quantum-well structures are promising emitters for high-resolution displays. However, the stabilities of blue perovskite light-emitting diodes (PeLED) are major hurdles toward full-color applications. Here, we introduce wide-gap, high-mobility silver-copper-gallium-disulfide (AgCuGaS 2 , ACGS) quantum dot (QD) solids as novel hole transport layer (HTL) to address the bottlenecks of the short lifetime of blue PeLEDs through controllable charge transport. ACGS QD solids provide enhanced hole transport through adaptable band structure and high hole mobility of 0.191 cm 2 V −1 s −1 . In addition, Zn 2+ attached to surface of the ACGS QD, stabilize the halide anions through ionic interaction, thus suppressing ion segregation and lattice defect formation in quasi-2D perovskite. The resulting pure-blue PeLEDs (471 nm) based on ACGS QD solids achieve a maximum EQE of 6.92% and a record operating lifetime with T 50 (luminance drop to half of the initial value) of 78 min at 100 cd/m 2 , significantly higher than controlled devices based on organic HTL materials (18 min).
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ACS Applied Materials & Interfaces
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2026
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IF 7.8
Chen Chang,Shixu Tao,Chang Xu,Yu Zhang,Wenxin Jiang,Yongge Cao,Chaoyang Ma
Colloidal CsPbX3 (X = Cl, Br, I) quantum dots (PQDs) typically suffer from severe degradation under heat, moisture, and UV/blue light irradiation, primarily due to the dynamic detachment and mismatch of surface ligands. Recently, ligand-free template-assisted strategies have emerged as an effective approach to address these challenges by regulating PQD growth through spatial confinement within nanoporous matrices. However, most reported systems are restricted to powder or thin-film forms and lack a robust, transparent, and device-compatible macroscopic architecture. In this work, we for the first time report a ligand-free in situ confined growth strategy for PQDs within a transparent nanoporous poly(methylsilsesquioxane) (PMSQ) xerogel monolith. The nanopores of the hydrophobic PMSQ template provide effective spatial confinement for the PQDs, which suppresses aggregation of PQDs and reduces nonradiative trap states, thereby enabling a high photoluminescence quantum yield exceeding 92% and excellent thermal stability, moisture stability, and photostability. Furthermore, the strategy is extended to synthesize CsPbX3 (X = Cl, Br, I) QDs@PXMs with tunable emission across the visible spectral range from 417.6 to 674.2 nm. A white light-emitting diode fabricated using CsPbBr3 QDs@PXMs and commercial K2SiF6: Mn4+ phosphors achieves a luminous efficiency of 110 lm W–1 and a wide color gamut reaching 133% of the NTSC 1931 standard. These findings demonstrate that CsPbX3 QDs@PXMs constitute robust and high-performance PQD-based composite materials suitable for high-quality lighting and wide-color-gamut display applications.
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WATER SCIENCE AND TECHNOLOGY
·
2026
·
IF 2.8
Wu Wei,Ma Xiaoqian,Wang Rui,Hao Mengqi
View large Download slide View large Download slide Close modal This paper delves into the impact of electrostatic interaction and wettability of MNPs on the efficiency of demulsifiers. Fe 3 O 4 magnetic nanocomposites (Fe 3 O 4 /HA/PDDA/OLA MNPs, S1–S5) were synthesized with varying wettability and zeta potential by adjusting the surface modification ratio of poly-dimethyl-diallyl-ammonium chloride (PDDA) and oleylamine (OLA). S1–S5 were then used to demulsify O/W (hexadecane) nanoemulsions. The oil/water separation efficiency (SE) initially increased (S1–S4) and then decreased (S4–S5) with their increasing water contact angles (WCA). S4 with a WCA about 90° exhibited the maximum SE, although S4 has a negative charge and shows electrostatic repulsion with oil droplets, indicating that the wettability of MNPs, rather than electrostatic interaction, played a dominant role in demulsification. Adsorption energy of S1–S5 at the water–oil interface aligned with the variation in their demulsification efficiency. Based on previous reports, a possible demulsification mechanism was proposed. Hydrogen bond and hydrophobic long chains present in PDDA and OLA increased the interfacial activity of S4, which facilitated the spontaneous migration of MNPs to the interface of oil and water. With oil droplet aggregation by magnetic recovery, a good oil–water separation performance was achieved. The study provides a theoretical foundation for the design and synthesis of magnetic demulsifiers. Wettability of MNPs plays a crucial role in demulsification performance. Surface charge of MNPs shows less function than wettability. MNPs with a WCA of approximately 90° showed the maximum demulsification efficiency. The study provides a theoretical foundation for the design and synthesis of magnetic demulsifiers.
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ACS Applied Nano Materials
·
2026
·
IF 5.8
Song Wang,Hongyan Li,Xiaohu Zhao,Jiaxin Rui,Zhaogang Teng,Lihong Qi,Kai Pan
One-dimensional (1D) CsPbI3 nanowires (NWs) are promising for nanoscale optoelectronic applications due to their strong quantum confinement and anisotropic charge-transport characteristics, yet their practical use is severely limited by high defect density and poor structural stability. Here, we report an intrinsic stabilization strategy for CsPbI3 NWs via controlled Y3+ doping. CsPbI3 nanocrystals with different Y3+ contents were synthesized by a hot-injection method and subsequently transformed into 1D NWs through a solvent-induced phase conversion process. Structural characterizations demonstrate that Y3+ ions substitutionally occupy Pb2+ sites, inducing slight lattice contraction without generating secondary phases. Importantly, Y3+ incorporation markedly suppresses nonradiative defect states and enhances optical performance. The CsPbI3 NWs with an optimal Y3+ doping level of 20% exhibit the highest photoluminescence (PL) intensity and a 3-fold increase in average exciton lifetime, from ∼35 ns for pristine NWs to ∼110 ns after doping. Temperature-dependent PL analysis reveals an increased exciton binding energy from 413.6 to 491.2 meV and an enhanced longitudinal optical phonon energy from 465.2 to 614.6 meV, indicating strengthened exciton confinement and improved thermal stability. Moreover, the 20% Y3+-doped CsPbI3 NWs retain approximately 90% of their initial PL intensity after 28 days of ambient exposure, whereas pristine NWs undergo rapid degradation. These results demonstrate that Y3+ doping enables effective lattice-level defect regulation and intrinsic stabilization of CsPbI3 NWs, providing a robust and quantitative design strategy for high-performance and long-lifetime perovskite optoelectronic devices.
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