Results in Engineering最新文献

{"title":"Deep eutectic solvent-mediated ligand engineering for stable and high-luminance perovskite quantum dots toward ultra-bright light-emitting diodes","authors":"Qun Yan, Huanxin Wang, Shiwen Xing, Baoyou Liu, Libo Zhong, Dongming Liu, Gang Yue, Yanqin Miao","doi":"10.1016/j.rineng.2025.106747","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.106747","url":null,"abstract":"Organic ligands can effectively passivate surface defects of perovskite quantum dots (PQDs), thereby enhancing their optoelectronic performance. In this study, a deep eutectic solvent (DES) prepared from caprolactam and acetamide was introduced as an organic ligand to synthesize PQDs emitting at 496 nm and fabricate high-brightness light-emitting devices. Compared to PQDs without DES modification, the DES-enhanced PQDs exhibited stronger binding via a unique hydrogen-bonding network, resulting in a significant increase in fluorescence intensity from 2852 a.u. to 6675 a.u. (144% enhancement). The DES-modified PQDs retained 50% of their initial fluorescence intensity after 5 days of ambient storage. The photoluminescence quantum yield (PLQY) improved from 18.7% to 31.85%. Light-emitting devices based on these PQDs achieved a maximum luminance of 79,430 cd/m² and Commission Internationale de l'Éclairage (CIE) coordinates of (0.32, 0.65). This work demonstrates that DES-based ligand engineering is a promising strategy for enhancing the photoluminescence efficiency and optoelectronic performance of PQDs.","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"27 1","pages":"106747-106747"},"PeriodicalIF":0.0,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Freeze-resistant wearable strain sensors based on hyperbranched cellulose nanofiber hydrogels","authors":"Houhuang Tao, Xuebin Yu, Lanqing Li, María de los Ángeles, Na Wang","doi":"10.1016/j.rineng.2025.106731","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.106731","url":null,"abstract":"• Synthesis of a highly conductive freeze-resistant high tenacity hydrogel. • Hydrogel maintains good stability and freeze resistance at -40°C. • The hydrogel has ultra-high strain sensitivity and a wide detection range. • Hydrogel strain sensors have shown good performance in human motion detection. Hydrogel sensors are becoming increasingly important for electronic devices because of their flexibility, versatility, and high sensitivity, especially in applications that necessitate compatibility with human skin. However, creating hydrogel sensors that maintain high toughness and antifreeze properties in extreme cold conditions continues to be a challenge. This study introduces phytic acid (PA) into a hyperbranched polyamide (HBP)/cellulose nanofiber (CNF) interacting network to develop a freezing-resistant, high-toughness hydrogel with sustained electrical conductivity (HBP/CNF-PA). The terminal amino groups of the HBP enhance hydrogen bonding, thereby improving the mechanical strength and conductivity of the hydrogel. The resulting HBP/CNF-PA hydrogels exhibit a tensile strength of 219.7 kPa, a compressive strength of 0.87 MPa, and dissipate energy at a rate of 795 kJ·m -3 , along with a conductivity of 0.45 S·cm -1 and exceptional frost resistance, extending down to -40°°C, due to the ionization induced by PA. Hydrogels were utilized to create flexible sensors with a sensitivity of up to 1.34 V·g -1 . The sensors detect signals with a time interval of just 197 ms and 215 ms, capable of identifying changes in relative resistance caused by wrist flexion, gestures, and voice movements.","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"27 1","pages":"106731-106731"},"PeriodicalIF":0.0,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147903406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient removal of hexavalent chromium using l-cysteine-modified chitosan with polyacrylamide in a one-step flocculation-precipitation process","authors":"Jinyang Yan, Yang Wen, Bo Feng","doi":"10.1016/j.rineng.2025.106282","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.106282","url":null,"abstract":"","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"27 1","pages":"106282-106282"},"PeriodicalIF":0.0,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147330483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lignin waste-based low-cost porous carbon for efficient and stable CO2 capture","authors":"Changle Wang, Jiong Sun, Fu‐An Guo, Zhijing Liang, Cuizhen Bai, Salman Qadira, Hao Wang, Yuhe Liao, Boshi Li, Ruiqin Zhang, Haiming Yang, Shao‐Tao Bai","doi":"10.1016/j.rineng.2025.105962","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.105962","url":null,"abstract":"• Synthesis of low-cost porous carbon CO 2 adsorbents from lignin waste via one-step carbonization/activation method. • Utilization of K 2 CO 3 activator and high calcination temperature enabled the formation of numerous micropores below 2 nm and mesopores in the range of 2–4 nm. • Optimal porous carbon demonstrates exceptional CO 2 capture capacity up to 3.75 mmol/g at 1 bar and 25 °C. • Excellent CO 2 /N 2 selectivity of 57.2, low regeneration energy Q st of 15.9–23.8 kJ/mol and excellent stability over multiple adsorption/desorption cycles highlight application potentials. Developing a low-cost and renewable porous carbon-based CO 2 adsorbent with excellent CO 2 capture capacity, selectivity, stability and low regeneration energy is a contemporary research subject worldwide, especially in the context of a circular and carbon neutral economy. Herein, we report the synthesis of novel low-cost porous carbon materials for highly efficient CO 2 capture prepared from abundant lignin waste via a one-step direct activation/carbonization method. Upon optimization of the activation temperature and activator concentration, the optimal carbon adsorbent material L-K-2–750 with K 2 CO 3 as activator, K 2 CO 3 /lignin mass ratio of 2/3 and activation temperature of 750 °C, exhibited a high specific surface area (797 m 2 /g) and high total pore volume (0.33 cm 3 /g). It demonstrated an excellent CO 2 adsorption capacity of 3.75 mmol/g at 25 °C and 1 bar, which is comparable to or better than the CO₂ adsorption capacities reported in the literature (1.1–4.4 mmol/g). Adsorption/desorption cycling experiments revealed excellent stability over five cycles with <2 % loss of adsorption capacity. CO 2 /N 2 selectivity experiments showed an excellent selectivity of 57.2 in a CO 2 /N 2 mixture (15:85). The Isosteric Adsorption Heat (Q st ) level of 15.9–23.8 kJ/mol confirmed low regeneration energy, thus making this material highly promising for practical applications.","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"27 1","pages":"105962-105962"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147897420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication, physicochemical, antibacterial, and cytotoxicity evaluation of tetracycline-loaded hydrogels of gallic acid as controlled release agents","authors":"Muhammad Suhail, Naila Jabeen, Abdul Wahab, Perumal Ramesh Kannan, Raza Ullah, Jabeen Farheen, Sajid Ali, Han Zhang, M. Zubair Iqbal, Xiangdong Kong, Pao‐Chu Wu","doi":"10.1016/j.rineng.2025.105525","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.105525","url":null,"abstract":"","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"26 1","pages":"105525-105525"},"PeriodicalIF":0.0,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term stability of silica-composite sheet for smartphone-based colorimetric sensor in discrimination of airborne formaldehyde","authors":"Truong Nhat Van Do, Patrick Mai, Minh-Kha Nguyen, Nguyễn Văn Dũng, Nguyễn Quang Long, Tuyet‐Mai Tran‐Thuy","doi":"10.1016/j.rineng.2025.105499","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.105499","url":null,"abstract":"","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"26 1","pages":"105499-105499"},"PeriodicalIF":0.0,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Boosted magneto-photothermal therapy of cancer cells by carboxylated carbon-coated plasmonic satellite/magnetic core nanoplatforms","authors":"Yingran Shen, Kai Feng, Yanze Yin, Bei Yang, Hao Wang, Guang Yang, Jie Cai","doi":"10.1016/j.rineng.2025.105437","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.105437","url":null,"abstract":"• ·Carbon coated plasmonic satellite/magnetic core NPs were fabricated by laser ablation • ·Magnetization and LSPR property were achieved via structure tailoring • ·Optimized heating was obtained under combined laser radiation and magnetic field • ·NPs showed an excellent biocompatibility in vivo • ·NPs presented intensified MRI capabilities and tumor visualization in vivo • ·Efficient cancer therapy was achieved in vitro/vivo via laser radiation/magnetic field Hybrid plasmonic-magnetic nanoparticles (NPs) can mediate tumors through the magneto-photothermal therapy, gaining rising attention in the treatment of oncology. Herein, carboxylated carbon coated plasmonic satellite/magnetic core NPs were successfully fabricated by a pulsed laser ablation in solution. Plasmonic element (Au, Pd, Ag and Cu), shell thickness (i.e., 1-2 layers over Fe2O3 core and 1-2 layers over Au satellite) and plasmonic/magnetic composition were systematically tailored to achieve optimal plasmonic/magnetic properties. These designed NPs were applied as heat generators as functions of NP concentrations, laser power densities and magnetic field intensities. Carboxylated shells facilitated good colloidal stability and cellular uptake of NPs. Carbon coated plasmonic satellite/magnetic core NPs exhibited excellent capability (66.1-193.6 mM−1·s−1) of magnetic resonance imaging for tumor visually in vivo. Cancer cells were killed in 300 s in vitro by enhanced the temperature of tumor rapidly to 55°C within 100 s with combined exposure dual modalities including laser radiation of 0.75 W/cm2 (785 nm) and magnetic field of 400 Oe. Carbon coated plasmonic satellite/magnetic core NPs present good biocompatibility in multiple organs. This work provided a versatile strategy for fabricating core/satellite theranostic nanoprobes with rationally multimodal imaging and therapeutic functionalities.","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"26 1","pages":"105437-105437"},"PeriodicalIF":0.0,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147894576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Titanium-based lithium-ion sieves granulated with biomaterial for sustainable lithium recovery","authors":"Xie Yuen Gok, Hui Shen Lau, Can Zeng Liang, Wai Fen Yong","doi":"10.1016/j.rineng.2025.105269","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.105269","url":null,"abstract":"• Granulated CS/Am-HTO LISs prepared using amorphous titanium oxide and chitosan. • The beads adsorb Li + efficiently, achieving equilibrium in 8 h with 43 mg/g uptake. • Adsorption follows pseudo-second-order kinetics and Freundlich isotherm models. • Stable adsorption observed even after 6 regeneration cycles in acidic conditions. Lithium is a critical resource widely used in batteries, electronics, and industrial applications due to its energy storage capabilities. Ion-sieving adsorption, utilizing manganese- and titanium-based lithium ion sieves (LISs), is a common recovery method offering high recovery efficiency and ease of operation. However, manganese-based LISs are not stable in acidic conditions, leading to dissolution during the regeneration. Additionally, conventional powdery LISs are difficult to regenerate and recycle, resulting in significant waste and secondary pollution. Herein, this research aims to synthesize granulated chitosan/titanium-based LISs (CS/Am-HTO) with improved stability and faster lithium uptake rates using amorphous titanium oxide (TiO 2 ) as the precursor. The CS/Am-HTO demonstrate high adsorption efficiency, achieving equilibrium within 8 h with a Li + uptake of 43.20 mg/g. The adsorption behavior aligns well with pseudo-second-order kinetic and Freundlich isotherm models. Notably, the beads demonstrated stable adsorption performance and physicochemical durability, with a Ti 4+ dissolution rate as low as 2.8% even after six regeneration cycles under acidic conditions. The findings of this project are expected to inspire further development of LIS granulation using alternative binders to enhance adsorption performance and support continuous lithium extraction process.","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"26 1","pages":"105269-105269"},"PeriodicalIF":0.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of geometric modifications in T-type micromixers for enhanced microfluidic mixing and ZIF-8 synthesis","authors":"Peng Tao, Jinghao Liang, Xueling Zhang, Leilei Chen, Yanlin Chen, Jun Qiang, Shuai Yuan","doi":"10.1016/j.rineng.2025.105233","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.105233","url":null,"abstract":"• T-type micromixer with zigzag sidewalls and obstacles enhances chaotic advection. • Experimental validation shows improved mixing across Reynolds numbers 1–100. • Enhanced mixing correlates with ZIF-8 crystal size, enabling controlled synthesis. • Geometrically modified micromixer simplifies MOF production. Adequate mixing in microfluidic devices is essential for chemical and biological processes but is often limited by laminar flow conditions with diffusion-dominated mechanisms. We developed a passive micromixer with engineered structural features optimized for synthesizing zeolite imidazolate framework-8 (ZIF-8). The device combines a zigzag channel geometry with gear-shaped lateral walls and bullet-shaped flow obstacles, creating sequential flow perturbations that enhance chaotic advection. Experimental validation demonstrates an improvement in mixing efficiency across Reynolds numbers of 1–100 compared to other designs. The investigation of precursor molar ratios and flow rates revealed direct correlations between mixing performance and ZIF-8 particle size. The integrated structural features enable precise size control of ZIF-8 crystals (400 –1200 nm) by modulating interfacial shear rates during nucleation. This research advances the simple synthesis of bioactive MOFs, offering a sustainable strategy for designing stimuli-responsive drug delivery systems and applications in biosensing.","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"26 1","pages":"105233-105233"},"PeriodicalIF":0.0,"publicationDate":"2025-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147331018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tryptophan, uric acid, and dopamine detected simultaneously using an accurate and affordable electrochemical sensor based on Co9S8-supported electrochemically reduced graphene oxide","authors":"Peihong Deng, Aiting Chen, Shuting Shi, Chuanqin Zhou, Nana Tang, Quanguo He","doi":"10.1016/j.rineng.2025.105171","DOIUrl":"https://doi.org/10.1016/j.rineng.2025.105171","url":null,"abstract":"A cost-effective and simple electrochemical approach was developed for the simultaneous detection of tryptophan (Trp), uric acid (UA) and dopamine (DA). Through hydrothermal synthesis, Co 9 S 8 was combined with graphene oxide (GO) using physical ultrasound. Subsequently, the Co 9 S 8 -RGO/GCE was created by electrochemically reducing a Co 9 S 8 -GO dispersion after drop-coating it onto the GCE surface. The amalgamation of Co 9 S 8 with RGO conferred the sensor with remarkable sensitivity, outstanding selectivity, and robust catalytic prowess towards DA, UA and Trp. The ternary mixture exhibited notable peak separations of up to 160 mV, 278 mV, and 438 mV between DA–UA, UA–Trp, and DA–Trp, respectively. The linear calibration ranges spanned 0.1–2.0 μM and 2.0–10 μM for DA, 0.06–10 μM for UA, and 0.02–10 μM for Trp, with matching 0.04 µM for DA, 0.02 µM for UA, and 6.0 nM for Trp detection limits (S/ N = 3). Moreover, the sensor's effective use in the identification of DA, UA and Trp in authentic samples yielded satisfactory results. Comparison of analytical performance of different modified electrodes for simultaneous detection of DA, UA and Trp","PeriodicalId":505830,"journal":{"name":"Results in Engineering","volume":"26 1","pages":"105171-105171"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147892029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}