Results 11 to 20 of about 279 (91)
番茄红素微乳液的制备及表征Preparation and characterization of lycopene microemulsion
为提高番茄红素的稳定性和水溶性,采用低能乳化法制备番茄红素微乳液,利用伪三元相图优化番茄红素微乳液配方。探讨油相、乳化剂、助乳化剂、乳化剂与助乳化剂质量比(Km值)对微乳液形成的影响,通过计算并比较伪三元相图微乳液区域面积确定各因素的最佳值,并对微乳液的类型、形态、粒径、多分散指数(PDI)和Zeta电位进行测定。结果表明,番茄红素微乳液最佳配方为油相为亚麻籽油、乳化剂为吐温80、助乳化剂为无水乙醇、Km值为2∶ 1,采用最佳配方得到的番茄红素微乳液为O/W型,微乳液液滴呈规则球形,粒径为(167.70±
李淑珍1,2,白羽嘉1,2,李晓红3,冯作山1,2 LI Shuzhen1,2, BAI Yujia1,2, LI Xiaohong3, FENG Zuoshan1,2
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ABSTRACT Aqueous zinc‐ion batteries (AZIBs) have attracted increasing attention in energy storage owing to their high energy density, low redox potential, and cost‐effectiveness. Nevertheless, uncontrolled dendrite accumulation, gas generation, and severe side‐reaction problems hinder the cycling lifespan, which prevents their commercial applications ...
Xiangzhong Kong +8 more
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Dimensional Assembly Engineering of Ce‐MOF Interfaces for Selective Recognition of Phytic Acid
ABSTRACT Selective molecular recognition is central to chemical sensing yet discriminating structurally similar molecules at complex interfaces remains challenging. Traditional strategies based on tuning size, charge, or binding‐site chemistry often suffer from limited flexibility.
Qiang Miao +7 more
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ABSTRACT Recovering palladium (Pd) from low‐concentration metallurgical wastewater still poses significant challenges. In this study, triaminoguanidine hydrochloride was used as the key functional site, and three guanidine‐functionalized covalent organic frameworks (GCOFs) were successfully constructed by adjusting the substituents (–H, –OH, and –OCH3)
Jiaxing Xiong +9 more
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为了探究生化黄腐酸(biochemical fulvic acid, BFA)在土壤结构改良方面的应用,通过向土壤中添加BFA,研究其在不同浓度处理下对土壤物理性质及水分运动特性的影响。结果表明:(1)随着BFA施加比例提高,土壤中>0.25 mm的水稳性团聚体数量显著增多,施加比例为20 g/kg时,R0.25、MWD、GMD分别增加284.98%,105.64%,35.06%,分形维数降低2.17%。(2)在温度与pH变化的影响下,随着施加比例增大,Zeta电位的绝对值逐渐增大,施加比例为20 g ...
吴军虎 +3 more
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ABSTRACT Two‐dimensional (2D) nonlayered niobium nitrides have attracted considerable interest for electrochemical energy storage. However, the synthesis of these materials is hampered by their nonlayered crystal structures, which are characterized by strong three‐dimensional chemical bonding.
Rui Huo +7 more
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进行了强化混凝法去除腈纶废水中COD的研究。结果表明,铁碳微电解预氧化可提高混凝处理效果。通过对分子质量分布、Zeta电位及核磁共振波谱的测定发现,铁碳微电解的氧化作用可导致大分子有机物降解为小分子有机物,小分子有机物矿化,因此提高了分子质量>50 ku和<3 ku的有机物去除率;微电解产生的Fe2+有电性中和作用,使Zeta电位降低,强化混凝效果;微电解的氧化作用主要破坏酯类和醚类结构。
程爱华, 李杰, 王亚娥
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ABSTRACT Lung cancer remains the leading cause of cancer‐related deaths worldwide, yet immune checkpoint blockade (ICB) is often compromised by an immunosuppressive tumor microenvironment (TME) with acidosis, hypoxia, and poor T cell infiltration. Here, we develop a TME‐responsive nanoplatform (MgH2@Lip/PD‐L1) that couples hydrogen gas therapy with PD ...
Xuyu Gu +5 more
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ABSTRACT Two‐dimensional MXene‐based materials have recently attracted attention in supercapacitors and lithium ion batteries due to their excellent electrochemical performance. However, the capacity and agglomerate limits the development of MXene‐based materials.
Han Zhang +4 more
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ABSTRACT Lithium‐sulfur batteries (LSBs) face sluggish sulfur reduction reaction kinetics and severe polysulfide shuttling issues, which significantly limit their performance. In this work, a multifunctional separator with a 3D porous framework featuring confined pore structures and selective adsorption capability is constructed to address these ...
Mengchen Zhang +12 more
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