Sustainable Chemistry One World最新文献_第3页

Sustainable synthesis of copper oxide nanoparticles using the fruit extract of Piper cubeba and evaluation of their antibacterial, antioxidant, anti-inflammatory and catalytic activities 用胡椒果提取物可持续合成氧化铜纳米颗粒及其抗菌、抗氧化、抗炎和催化活性评价

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2026-01-31 DOI: 10.1016/j.scowo.2026.100196

A. Swarna Latha , P. Aruna , T. Chandrasekhar , V. Anu Prasanna , K. Riazunnisa

The present study describes the cost-effective and eco-friendly synthesis of CuONPs using the fruit extract of Piper cubeba (PC). UV–Vis analysis of synthesized PC-CuONPs showed a characteristic absorbance peak at 310 nm, confirming nanoparticle formation. XRD analysis revealed the crystalline nature of CuONPs, while SEM images indicated predominantly spherical particles with some degree of surface irregularity and agglomeration. EDAX confirmed the elemental presence of copper, and FTIR analysis indicated the involvement of phytochemical functional groups in nanoparticle stabilization. DLS analysis showed a hydrodynamic particle size of approximately 382 nm, reflecting aggregation in aqueous media and highlighting the difference between hydrated and dry-state particle dimensions. The functional performance of PC-CuONPs was evaluated through antibacterial, antioxidant, anti-inflammatory, and catalytic assays. Enhanced antibacterial activity was observed against Bacillus subtilis, Staphylococcus aureus, and Salmonella typhimurium compared to Escherichia coli and Proteus vulgaris at 100 µg/mL. MIC and MBC values for S. typhimurium are 100 and 115 μg/mL, respectively. Antioxidant activity showed 49 % inhibition in the phosphomolybdenum assay and 70 % hydrogen peroxide scavenging at 125 µg/mL. Anti-inflammatory activity, assessed via egg albumin protein denaturation, exhibited a maximum inhibition of 64 %. The nanoparticles also demonstrated effective catalytic degradation of methylene blue dye within 120 min. Overall, this study highlights the role of P. cubeba phytochemicals in the green synthesis of functional CuONPs and demonstrates their potential in catalytic and preliminary bioactivity-related applications.

本研究描述了利用胡椒果提取物（PC）经济环保地合成CuONPs的方法。合成的PC-CuONPs的UV-Vis分析显示在310 nm处有特征吸光度峰，证实纳米颗粒形成。XRD分析显示CuONPs的结晶性质，SEM图像显示CuONPs主要为球形颗粒，表面有一定程度的不规则和团聚。EDAX证实了铜元素的存在，FTIR分析表明植物化学官能团参与了纳米颗粒的稳定。DLS分析显示，水动力颗粒尺寸约为382 nm，反映了水介质中的聚集性，并突出了水合状态和干燥状态颗粒尺寸的差异。通过抗菌、抗氧化、抗炎和催化实验评价PC-CuONPs的功能性能。与大肠杆菌和寻常变形杆菌相比，100 µg/mL浓度对枯草芽孢杆菌、金黄色葡萄球菌和鼠伤寒沙门菌的抑菌活性增强。鼠伤寒沙门氏菌的MIC和MBC分别为100和115 μg/mL。抗氧化活性显示，在125 µg/mL时，对磷钼的抑制作用为49% %，对过氧化氢的清除作用为70% %。抗炎活性，通过鸡蛋白蛋白变性评估，显示出最大抑制64 %。纳米颗粒在120 min内对亚甲基蓝染料也有有效的催化降解作用。综上所述，本研究强调了立方木植物化学物质在绿色合成功能性CuONPs中的作用，并展示了它们在催化和初步生物活性相关应用方面的潜力。

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引用次数: 0

Electron-beam synthesized Ag–Cu nanoparticles with enhanced antimicrobial activity 电子束合成具有增强抗菌活性的银铜纳米颗粒

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2026-02-04 DOI: 10.1016/j.scowo.2026.100200

Nguyen Ngoc Duy , Dang Van Phu , Nguyen Chi Thuan , Truong Thanh Ngoc , Nguyen Thi Kim Lan , Le Anh Quoc , Hoang Dac Hiet , Tran Quoc Bao

This study presents the green synthesis and characterization of bimetallic silver–copper (Ag–Cu) nanoparticles produced using electron beam (EB) irradiation and stabilized with chitosan. Ag–Cu nanoalloys with various Ag:Cu molar ratios were fabricated through in-situ radiolytic reduction using a 10 MeV EB accelerator. UV–Vis spectroscopy revealed composition-dependent surface plasmon resonance features, while TEM and XRD analyses confirmed the formation of uniformly dispersed spherical nanoparticles with enhanced crystallinity after irradiation. FTIR spectra indicated the involvement of chitosan functional groups in stabilizing nanoparticles. The antimicrobial activity of the nanoalloys was assessed against Pseudomonas solanacearum (bacteria) and Neoscytalidium dimidiatum (fungus), two major agricultural pathogens. Ag-rich compositions (2:1 and 3:1) exhibited the most significant inhibitory effects, including the outperforming monometallic Ag and Cu controls. The improved bioactivity is attributed to the synergistic release of ions and intensified reactive oxygen species generation facilitated by the EB-induced nanoalloy structure.

本文研究了电子束辐照制备的双金属银铜（Ag-Cu）纳米粒子的绿色合成和表征。采用10 MeV的加速器，通过原位辐射还原法制备了不同Ag:Cu摩尔比的Ag - Cu纳米合金。紫外-可见光谱分析揭示了表面等离子体共振特征，TEM和XRD分析证实辐照后形成了均匀分散的球形纳米颗粒，结晶度增强。FTIR光谱表明壳聚糖官能团参与了稳定纳米颗粒。测定了纳米合金对细菌假单胞菌（Pseudomonas solanacearum）和真菌（Neoscytalidium dimidiatum）两种主要农业病原菌的抗菌活性。富银组合物（2:1和3:1）表现出最显著的抑制作用，包括优于单金属银和铜对照。这种生物活性的提高是由于eb诱导的纳米合金结构促进了离子的协同释放和活性氧的生成。

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引用次数: 0

Role of ammonia and urea in comparing the functional properties of precipitated spinel Mn3O4 nanomaterials 氨和尿素在比较沉淀尖晶石Mn3O4纳米材料功能性能中的作用

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2026-02-02 DOI: 10.1016/j.scowo.2026.100199

S.A. Ashika, S. Balamurugan , T.K. Sana Fathima

This study explores the role of ammonia and urea in inter comparing the (micro)-structural, thermal, and optical properties of precipitated Mn₃O₄ nanomaterials synthesized via a precipitation method. The as-precipitated samples crystallize in a tetragonal Mn₃O₄ phase with slight variation in structural parameters. Thermogravimetric analysis (TGA) reveals weight losses of 5.4 % and 3.5 % for samples prepared using NH₄OH and NH₂CONH₂, respectively. The optical band gap (E_g) obtained from UV-Vis absorbance/reflectance spectra is 1.9 eV for the NH₄OH originated and 1.87 eV for the NH₂CONH₂ grown Mn₃O₄ phase materials. Notably, the latter sample reveals rather a higher near-infrared (NIR) reflectance of ∼68 % in the 1250–1750 nm range. Raman spectroscopy confirms a characteristic peak at ∼650 cm⁻¹ corresponding to the Mn–O stretching vibration of the Mn₃O₄ phase. FESEM analysis confirms highly aggregated Mn₃O₄ nanomaterials for the role of NH₄OH as precipitant whereas, nanorods embedded within spherical particles are noticed for the NH₂CONH₂ drawn Mn₃O₄ phase.

本研究探讨了氨和尿素在比较沉淀法合成的Mn₃O₄纳米材料的微观结构、热性能和光学性能中的作用。析出的样品在四方Mn₃O₄相中结晶，结构参数变化不大。热重分析（TGA）表明，用NH₄OH和NH₂CONH₂制备的样品的失重率分别为5.4 %和3.5 %。由UV-Vis吸收/反射光谱得到的光带隙（Eg）为：NH₄OH形成的材料为1.9 eV， NH₂CONH₂生长的Mn₃O₄材料为1.87 eV。值得注意的是，后一种样品在1250-1750 nm范围内显示出相当高的近红外（NIR）反射率，为~ 68 %。拉曼光谱证实了在~ 650 cm−1处有一个特征峰，对应于Mn₃O₄相的Mn - O拉伸振动。FESEM分析证实了NH4OH作为沉淀剂的高度聚集的Mn3O4纳米材料，而在NH₂CONH₂引出的Mn₃O₄相中，发现了嵌在球形颗粒中的纳米棒。

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引用次数: 0

Valorization of manila tamarind seed coat waste biomass for dye removal 马尼拉罗望子种皮废生物质脱除染料的研究

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2025-12-02 DOI: 10.1016/j.scowo.2025.100160

Ayush Chutani , Nitin Verma , Vivek Kumar

Valorization of Manila Tamarind (Pithecellobium dulce) seed coat as adsorbent, for Nanoparticle (NP) and Biochar synthesis was studied. Seed coat was employed in extract preparation for the green synthesis of Copper Oxide and Zinc Doped Copper Oxide nanoparticles . The retentate seed coat powder (fine and coarse) and direct seed coat powder (fine and coarse) were then further utilized to prepare Biochar (BC). Two distinct dye pollutants were selected to evaluate the efficacy of prepared adsorbents. Removal of Methylene Blue (MB) dye from aqueous solution was studied using the nanoparticle alginate beads and the adsorption parameters were analyzed, whereas the removal of Malachite Green (MG) dye from aqueous solution was studied using the Biochar followed by determination of adsorption parameters. Results showed that zinc-doped copper oxide nanoparticle alginate beads with 0.2 M doping concentration had the highest removal of 94 % with 2 g/L dosage, 50 mg/L initial dye concentration at pH 6 with 8 h of contact time, at 25°C temperature. The adsorption process followed the Langmuir isotherm model and the Intraparticle diffusion kinetic model. Biochar synthesized from fine seed coat powder used in the extract preparation showed the highest removal of 99.58 % at 50 mg/L initial MG concentration at 25°C, 150 rpm, 1.5 g/L dosage, and 4 hr of contact time. In a nutshell, it provides an efficacious way for utilizing biomass as biochar & nanoparticles to manage solid waste and simultaneously treat toxic dye based liquid effluents.

研究了马尼拉罗望子种皮作为吸附剂在纳米颗粒（NP）和生物炭合成中的应用。采用种皮制备绿色合成氧化铜和锌掺杂氧化铜纳米粒子的萃取物。然后进一步利用保留种皮粉（细、粗）和直接种皮粉（细、粗）制备生物炭（BC）。选择两种不同的染料污染物来评价制备的吸附剂的效果。研究了纳米藻酸盐微球对水溶液中亚甲基蓝（MB）染料的去除效果，分析了吸附参数；研究了生物炭对孔雀石绿（MG）染料的去除效果，并测定了吸附参数。结果表明，在25℃温度下，掺杂浓度为0.2 M的锌掺杂氧化铜纳米藻酸盐微球在投加量为2 g/L、初始染料浓度为50 mg/L、pH为6、接触时间为8 h时去除率最高，为94 %。吸附过程遵循Langmuir等温线模型和颗粒内扩散动力学模型。在25℃、150 rpm、1.5 g/L投加量、4 hr的初始mg浓度为50 mg/L时，生物炭的去除率最高，为99.58 %。简而言之，它提供了一种有效的方法，利用生物质作为生物炭和纳米颗粒来管理固体废物，同时处理有毒的染料基液体废水。

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引用次数: 0

Valorization of pretreated sawdust and poultry manure for biogas and digestate organic fertilizer production 预处理木屑和家禽粪便用于沼气和消化有机肥生产的增值

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2026-02-28 DOI: 10.1016/j.scowo.2026.100203

O.S. Oladejo , S.O. Dahunsi , E.L. Odekanle , F.D. Olaoluwa , T.D. Ojewole , O.J. Aladegboye , O.O. Oluyide , D.O. Ibiwoye , O.A. Akinsola , O.T. Akinola , M.N. Eze , P.J. Ndako , A.A. Asafa , K.F. Akinloye , O.M. Alabi , A.O. Oguntunji , T.E. Lawal , T.O. Ogunbode , R.A. Ibikunle

This study evaluated the effect of alkaline and biological pretreatment on the co-digestion of sawdust (SD) and poultry manure (PM) for enhanced biogas production and digestate nutrient recovery. Sawdust was divided into two portions and pretreated either with sodium hydroxide (NaOH) (Sample A) or biologically using cattle rumen inoculum (Sample B) prior to anaerobic digestion under mesophilic conditions (35 days) in a 6-L batch reactor. The alkaline-pretreated substrate (Sample A) produced significantly higher cumulative biogas yield (9.37 L; average 0.52 L/day) compared to the biologically pretreated substrate (Sample B) (5.38 L; average 0.30 L/day), representing a 42% increase. Methane content was also higher in Sample A (69.08%) than in Sample B (62.13%). Structural analysis showed substantial lignin and cellulose reduction after pretreatment, particularly under alkaline conditions, which enhanced substrate digestibility. The resulting digestates were rich in macro- and micronutrients, indicating strong potential for agricultural application as biofertilizers. The findings demonstrate that alkaline pretreatment significantly improves lignocellulosic biodegradability and biogas yield, supporting sustainable waste-to-energy and nutrient recovery strategies in developing regions.

本研究评价了碱预处理和生物预处理对木屑（SD）和禽粪（PM）共消化提高沼气产量和消化液养分回收的影响。将木屑分成两部分，分别用氢氧化钠（NaOH）（样品A）或用牛瘤胃接种物（样品B）进行生物预处理，然后在中温条件下（35天）在6-L间歇式反应器中进行厌氧消化。与生物预处理的底物（样品B）（5.38 L，平均0.30 L/天）相比，碱预处理的底物（样品A）产生的累积沼气产量（9.37 L，平均0.52 L/天）显着提高了42%。甲烷含量A（69.08%）高于B（62.13%）。结构分析表明，预处理后木质素和纤维素大量减少，特别是在碱性条件下，这提高了底物的消化率。由此产生的消化液富含宏量和微量营养素，表明作为生物肥料的农业应用潜力巨大。研究结果表明，碱性预处理可显著提高木质纤维素的生物降解性和沼气产量，支持发展中地区可持续的废物转化为能源和养分回收战略。

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引用次数: 0

Red amaranth betacyanin–incorporated Cs/PVA colorimetric films as smart sensors for real-time fish freshness monitoring 红苋菜甜菜花青素- Cs/PVA比色膜作为实时鱼类新鲜度监测的智能传感器

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2026-01-15 DOI: 10.1016/j.scowo.2026.100190

Alfianita Nuril Hidayaty , Saidun Fiddaroini , Ahmad Luthfi Fahmi , Dea Luthfianti Maharani , Qonitah Fardiyah , Arie Srihardyastutie , Akhmad Sabarudin

Ensuring fish freshness is critical for food safety, yet conventional assessment methods are destructive and unsuitable for real-time monitoring. This study develops a pH-responsive colorimetric film based on a chitosan–polyvinyl alcohol (Cs/PVA) matrix incorporated with red amaranth (Amaranthus tricolor L.) leaves extract (RAE), a highly betacyanin-rich natural pigment source. LC-HRMS analysis identified betacyanin (C₃₀H₃₄N₂O₁₉) as the dominant metabolite with the highest ion area (1.15 ×10 ¹⁰), alongside phenolics, carotenoids, and alkaloids that may enhance stability and responsiveness. UV–Vis characterization revealed a strong absorption peak at 535 nm and a total betacyanin content of 261 mg/L, with marked spectral shifts and color degradation above pH 9. Five film formulations were produced by varying extract volume of 1–5 mL (RAE1–RAE5), corresponding to 0.261–1.305 mg/L betacyanin. Film thickness increased with pigment loading (0.085 ± 0.01–0.138 ± 0.02 mm). FESEM revealed improved uniformity in RAE4, while FTIR confirmed strong hydrogen-bonding interactions between betacyanin and the Cs/PVA matrix. The films displayed distinct color transitions across pH 5–9, with ΔE values exceeding 50 for RAE4 and RAE5. Ammonia-vapor assays demonstrated high sensitivity, achieving > 50 % response within 180 min at 1 % NH₃. Application to tilapia fillets stored under refrigerated (6 ± 1 °C, 11 days) and ambient (23 ± 1 °C, 24 h) conditions showed strong correlation between film responses, pH elevation, and sensory quality decline. These findings establish red amaranth as a potent natural pigment and identify Cs/PVA-RAE4 and Cs/PVA-RAE5 films as sensitive, stable, and scalable freshness indicators suitable for real-time food monitoring.

确保鱼类的新鲜度对食品安全至关重要，但传统的评估方法具有破坏性，不适合实时监测。本研究以壳聚糖-聚乙烯醇（Cs/PVA）为基体，结合富含β -花青素的天然色素来源红苋菜（Amaranthus tricolor L.）叶提取物（RAE）制备ph响应比色膜。LC-HRMS分析确定甜菜苷（C₃₀H₃₄N₂O₁₉）是离子面积最高的主要代谢物（1.15 ×10 ¹⁰），还有酚类物质、类胡萝卜素和生物碱，它们可以增强稳定性和反应性。紫外可见光谱（UV-Vis）表征表明，其在535 nm处有很强的吸收峰，总β -花青素含量为261 mg/L，在pH值为9以上时出现明显的光谱偏移和显色降解。以1-5 mL （RAE1-RAE5）为不同的萃取量制备5种膜制剂，对应于0.261-1.305 mg/L甜菜花青素。膜厚随颜料的增加而增加（0.085 ± 0.01 ~ 0.138 ± 0.02 mm）。FESEM显示RAE4的均匀性得到改善，而FTIR证实β花青素与Cs/PVA基体之间存在强的氢键相互作用。薄膜在pH值5-9范围内呈现出明显的颜色转变，RAE4和RAE5的ΔE值超过50。氨蒸气测定显示出高灵敏度，在1 %的NH₃下，在180 min内达到>； 50 %的响应。对冷藏（6 ± 1°C， 11天）和常温（23 ± 1°C, 24 h）条件下的罗非鱼鱼片进行实验，发现薄膜反应、pH升高和感官质量下降之间存在很强的相关性。这些发现证实了红苋菜是一种有效的天然色素，Cs/PVA-RAE4和Cs/PVA-RAE5薄膜是一种灵敏、稳定、可扩展的新鲜度指标，适用于食品实时监测。

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引用次数: 0

Application of sustainable QbD based HPLC method for quantification of carboxylic-diphenyl methane drug ambrisentan loaded in solid lipid nanoparticles 基于可持续QbD的高效液相色谱法定量固体脂质纳米粒载羧基二苯基甲烷药物ambristan

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2025-12-01 DOI: 10.1016/j.scowo.2025.100158

Mohit Singh , Hemant Kumar Tatapudi , Abhishek Kanugo , Pavan Kumar Jaini , Mohana Vamsi Nuli

Background

The present study details the development and validation of a reverse-phase high-performance liquid chromatography method for quantifying ambrisentan in solid lipid-based nanocarriers, employing a Quality by Design methodology, along with assessments of greenness, blueness, and whiteness. A fractional factorial design was utilized to identify the key technique parameters affecting method development. The RP-HPLC process was systematically optimized using a Box-Behnken design.

Method

Chromatographic separation was performed using an isocratic flow system of acetonitrile and 1 % glacial acetic acid (39.5:60.5 v/v) on a Kromasil C18 column (4.6 × 100 mm, 5 μm) at a flow rate of 0.85 mL/min. The procedure was meticulously validated in accordance with ICH recommendations.

Results

Linearity was at a concentration range of 10–60 μg/mL, with a correlation coefficient of 0.999. The limits of detection and quantification were established at 0.04 μg/mL and 0.12 μg/mL, respectively. The established approach was utilized to quantify ambrisentan in formulated solid lipid nanocarriers. Recovery assays in lipid-based nanocarriers exhibited exceptional recovery rates (97.2–98.8 %). The proposed HPLC method secures a MoGAPI score of 80, AGREE score 0.82, BAGI score 70 and RGBFast 75.

Conclusion

The environmental sustainability of the suggested approach was assessed utilizing the White Analytical Chemistry framework, the Green Analytical Procedure Index, and AGREE. The approach received good scores in all assessments, validating its negligible environmental impact.

本研究详细介绍了一种反相高效液相色谱法的开发和验证，该方法用于定量固体脂基纳米载体中的ambrisentan，采用设计质量方法，同时评估绿色，蓝色和白色。采用分数因子设计确定影响方法开发的关键技术参数。采用Box-Behnken设计对RP-HPLC工艺进行系统优化。方法在Kromasil C18色谱柱（4.6 × 100 mm, 5 μm）上，采用乙腈- 1 %冰醋酸（39.5:60.5 v/v）等压流动体系，流速为0.85 mL/min。该程序按照ICH建议进行了严格的验证。结果在10 ~ 60 μg/mL浓度范围内线性良好，相关系数为0.999；检测限为0.04 μg/mL，定量限为0.12 μg/mL。所建立的方法被用于定量配制固体脂质纳米载体中的ambrisentan。脂质纳米载体的回收率为97.2-98.8 %。该方法的MoGAPI评分为80，AGREE评分为0.82，BAGI评分为70，RGBFast评分为75。结论采用白色分析化学框架、绿色分析程序指数和AGREE对建议方法的环境可持续性进行了评估。该方法在所有评估中都获得了高分，证明其对环境的影响可以忽略不计。

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引用次数: 0

Exploring the potential of metal and metal oxide nanomaterials towards modern-day agriculture: A recent overview 探索金属和金属氧化物纳米材料在现代农业中的潜力：最新综述

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2026-01-07 DOI: 10.1016/j.scowo.2026.100184

Sradhanjali Raut , Swetaleena Satapathy , Tanushree Sahoo , Amisha Sahukar , Sushree Sarada Mohanty , Annapurna Sahoo , Susanta Kumar Biswal , Gagan Kumar Panigrahi , Shraban Kumar Sahoo

Sustainable ecosystem management promotes eco-friendly agricultural techniques, including metal and metal oxide nanomaterials (MONPs) for enhancing crop production. Biologically synthesized nanoparticles from plants, bacteria, and fungi contribute to their sustainable characteristics. With sizes ranging from 1 to 100 nm, nanoparticles offer safer and more efficient mechanisms than conventional fertilizers and pesticides. Their use as nano-fertilizers, nano-pesticides, and antimicrobial agents improves soil quality, enhances crop productivity, and reduces environmental impact. Despite their potential, MONPs remain underutilized in agriculture, requiring further research to uncover their full benefits. Recent advances highlight biosynthesis methods using plants and microbes for cost-effective and ecological MONPs. Their interaction with plants enhances nutrient uptake, photosynthesis, antioxidative enzyme levels, and gene regulation, improving yield and stress resistance. Additionally, MONPs show promise in agricultural waste management and as nano-biosensors for detecting nutrients, pathogens, and toxins, safeguarding plant and soil health. Nanotechnology offers solutions to challenges in modern agriculture, such as soil degradation, pest infestation, and inefficient agrochemicals. NMs can mitigate abiotic stress by mimicking antioxidative enzymes, ensuring crop resilience in harsh environments. However, research on their fate, mobility, and toxicity in soil is limited, with most studies confined to laboratories. Understanding plant-nanoparticle interactions will refine their application in sustainable agriculture. This review underscores the need for extensive research to integrate MONPs into agriculture effectively. With increasing food demands and environmental concerns, nano-enabled agriculture holds promise for improving crop yield, soil fertility, and sustainable farming practices.

可持续生态系统管理促进生态友好型农业技术，包括用于提高作物产量的金属和金属氧化物纳米材料（MONPs）。从植物、细菌和真菌中生物合成的纳米颗粒有助于它们的可持续特性。纳米颗粒的尺寸从1到100 纳米不等，比传统的肥料和农药提供了更安全、更有效的机制。它们作为纳米肥料、纳米农药和抗菌剂的使用改善了土壤质量，提高了作物生产力，并减少了对环境的影响。尽管具有潜力，MONPs在农业中仍未得到充分利用，需要进一步研究以揭示其全部益处。最近的研究进展强调了利用植物和微生物进行生物合成的方法，这些方法具有成本效益和生态效益。它们与植物的相互作用增强了养分吸收、光合作用、抗氧化酶水平和基因调控，提高了产量和抗逆性。此外，MONPs在农业废弃物管理和作为纳米生物传感器检测营养物质、病原体和毒素、保护植物和土壤健康方面显示出前景。纳米技术为现代农业中的挑战提供了解决方案，例如土壤退化、害虫侵扰和低效的农用化学品。NMs可以通过模拟抗氧化酶来减轻非生物胁迫，确保作物在恶劣环境下的抗逆性。然而，关于它们在土壤中的命运、流动性和毒性的研究是有限的，大多数研究局限于实验室。了解植物与纳米粒子的相互作用将改进它们在可持续农业中的应用。这一综述强调了将MONPs有效整合到农业中的广泛研究的必要性。随着粮食需求和环境问题的日益增加，纳米农业有望提高作物产量、土壤肥力和可持续农业实践。

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引用次数: 0

Inhibition mechanisms of bovine bone ash-derived hydroxyapatite on AA6063 aluminium alloy in alkaline media: Electrochemical, adsorption, and optimization studies 牛骨灰羟基磷灰石在碱性介质中对AA6063铝合金的抑制机制：电化学、吸附和优化研究

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2025-12-30 DOI: 10.1016/j.scowo.2025.100177

Ojo S.I. Fayomi , Onyeka G. Ogbuozobe , Joshua O. Atiba

This study investigates the corrosion inhibition of AA6063 aluminium alloy in 1 M NaOH using calcinated bovine bone ash-derived hydroxyapatite (BBA-HAp). Electrochemical analyses revealed that at 0.6 g L⁻¹ inhibitor and 323 K, the inhibition efficiency (IE) reached 90.31 %, with the corrosion current density (J_corr) decreasing from 2.04 × 10⁻⁴ A cm⁻² (control) to 2.01 × 10⁻⁵ A cm⁻². Adsorption behaviour transitioned from Freundlich-dominated (R² = 0.986 at 303 K) to Langmuir-dominated (R² = 0.998 at 323 K), indicating temperature-dependent monolayer formation, with ΔG°ads values between −16 and −25 kJ/mol confirming mixed adsorption mechanisms. Optical microscopy verified reduced surface degradation. Response Surface Methodology (RSM) optimization identified 0.541 g L⁻¹ inhibitor at 41.2 °C as optimal, yielding a corrosion rate (CR) of 0.19 mm/yr. These findings demonstrate that BBA-HAp provides effective, thermally stable, and sustainable corrosion protection for aluminium alloys in alkaline environments.

研究了牛骨灰羟基磷灰石（BBA-HAp）对AA6063铝合金在1 M NaOH中的缓蚀作用。电化学分析显示,0.6 g  L⁻¹ 抑制剂和323年 K,抑制效率(IE)达到90.31 %,与腐蚀电流密度(Jcorr)从2.04降低 × 10⁻⁴cm⁻²(控制)到2.01 ×10 ⁻⁵cm⁻²。吸附行为从freundlich主导（在303 K时R²= 0.986）转变为langmuir主导（在323 K时R²= 0.998），表明温度依赖于单分子层的形成，ΔG°ads值在−16和−25 kJ/mol之间，证实了混合吸附机制。光学显微镜证实减少了表面降解。响应面法（RSM）优化发现，在41.2°C时，0.541 g L⁻¹ 缓蚀剂是最优的，其腐蚀速率（CR）为0.19 mm/yr。这些发现表明，BBA-HAp在碱性环境中为铝合金提供了有效、热稳定和可持续的防腐保护。

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引用次数: 0

Rhamnolipid production from agro-industrial waste: A new vista in green chemistry for production of ecofriendly surfactants 从农业工业废料中生产鼠李糖脂：绿色化学生产环境友好表面活性剂的新前景

Sustainable Chemistry One World

Pub Date : 2026-03-01 Epub Date: 2026-01-14 DOI: 10.1016/j.scowo.2026.100189

Medhashree Verma , Rajesh Kumar , Aishwary Purohit , Amar Jyoti Das

The increasing concern towards the environmental impact of lignocellulosic biomass waste generated during agro-industrial processes has triggered the need for its sustainable bioconversion into high-value products. Among others, rhamnolipid biosurfactants with varied and novel applications have surfaced as key products. This review is aimed at describing recent advancement in efficient pretreatment of lignocellulosic biomass to obtain fermentable sugars which are needed for microbial rhamnolipid production. Furthermore, the review also addresses the versatile qualities of rhamnolipids including their use in agriculture, nanotechnology and medicine, accentuating their effectiveness as multifunctional agents and as environmentally friendly substances. The production of rhamnolipids from lignocellulosic biomass strengthens the availability of sustainable green surfactants while at the same time adding value to agricultural industrial waste, thus advancing the circular bioeconomy and sustainability in various sectors.

对农业工业过程中产生的木质纤维素生物质废物的环境影响的日益关注引发了对其可持续生物转化为高价值产品的需求。其中，具有多种新颖用途的鼠李糖脂生物表面活性剂已成为重点产品。本文综述了木质纤维素生物质的有效预处理以获得微生物生产鼠李糖脂所需的可发酵糖的最新进展。此外，这篇综述还讨论了鼠李糖脂的多用途特性，包括它们在农业、纳米技术和医学中的应用，强调了它们作为多功能制剂和环境友好物质的有效性。从木质纤维素生物质中生产鼠李糖脂加强了可持续绿色表面活性剂的可用性，同时增加了农业工业废物的价值，从而促进了各个部门的循环生物经济和可持续性。

引用次数: 0