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Carbonized nano/microparticles for enhanced mechanical properties and electromagnetic interference shielding

Rao Arsalan KHUSHNOOD,Sajjad AHMAD,Luciana RESTUCCIA,Consuelo SPOTO,Pravin JAGDALE,Jean-Marc TULLIANI,Giuseppe Andrea FERRO

《结构与土木工程前沿（英文）》 2016年 第10卷 第2期   页码 209-213 doi: 10.1007/s11709-016-0330-5

摘要： In the present work, carbon nano/microparticles obtained by controlled pyrolysis of peanut (PS) and hazelnut (HS) shells are presented. These materials were characterized by Raman spectroscopy and field emission-scanning electron microscopy (FE-SEM). When added to cement paste, up to 1 wt%, these materials led to an increase of the cement matrix flexural strength and of toughness. Moreover, with respect to plain cement, the total increase in electromagnetic radiation shielding effect when adding 0.5 wt% of PS or HS in cement composites is much higher in comparison to the ones reported in the literature for CNTs used in the same content.

关键词： carbon nano/microparticles     green cement     toughness mechanism     electromagnetic shielding effect    

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Pd nano-catalyst supported on biowaste-derived porous nanofibrous carbon microspheres for efficient catalysis

《化学科学与工程前沿（英文）》 2023年 第17卷 第9期   页码 1289-1300 doi: 10.1007/s11705-023-2299-7

摘要： Environmental pollution caused by the presence of aromatic aldehydes and dyes in wastewater is a serious global concern. An effective strategy for the removal of these pollutants is their catalytic conversion, possibly to valuable compounds. Therefore, the design of efficient, stable and long-lifetime catalysts is a worthwhile research goal. Herein, we used nanofibrous carbon microspheres (NCM) derived from the carbohydrate chitin present in seafood waste, and characterized by interconnected nanofibrous networks and N/O-containing groups, as carriers for the manufacture of a highly dispersed, efficient and stable Pd nano-catalyst (mean diameter ca. 2.52 nm). Importantly, the carbonised chitin’s graphitized structure, defect presence and large surface area could promote the transport of electrons between NCM and Pd, thereby endowing NCM supported Pd catalyst with high catalytic activity. The NCM supported Pd catalyst was employed in the degradation of some representative dyes and the chemoselective hydrogenation of aromatic aldehydes; this species exhibited excellent catalytic activity and stability, as well as applicability to a broad range of aromatic aldehydes, suggesting its potential use in green industrial catalysis.

关键词： biowaste chitin     nanofibrous     palladium     nano-catalyst     catalysis    

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Diversity-oriented synthesis of blue emissive nitrogen heterocycles and their conjugation with carbonnano-onions

Viviana Maffeis, Lisa Moni, Daniele Di Stefano, Silvia Giordani, Renata Riva

《化学科学与工程前沿（英文）》 2020年 第14卷 第1期   页码 76-89 doi: 10.1007/s11705-019-1833-0

摘要： The search for new fluorescent molecules for possible applications as functional -electron systems and their conjugation with different nanomaterials is nowadays of paramount importance to broaden the availability of materials with different properties. Herein we present a diversity-oriented approach to heterocyclic luminophores based on a multicomponent Ugi reaction followed by a Pd-mediated cascade sequence. The new molecules are coupled to carbon nano-onions, and hybrid systems represent the first example of blue emitters conjugated with these carbon nanoparticles.

关键词： carbon nano-onions     multicomponent reactions     blue emitters     fluorescence     isoquinolines    

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Preparation of ibuprofen/lipid composite microparticles by supercritical fluid technique

WANG Xia, CHEN Hui, GUO Yanni, SU Yuzhong, WANG Hongtao, LI Jun

《化学科学与工程前沿（英文）》 2008年 第2卷 第4期   页码 361-367 doi: 10.1007/s11705-008-0066-4

摘要： Using the CO- and N-assisted atomization processes, the production of ibuprofen/lipid composite microparticles is investigated, in which the lipid includes myristic acid and tripalmitin. The produced composite particles show similar morphology to that of the pure lipids obtained by the same process. In the case of the N-assisted process, the average size of composite particles is slightly larger than that of the pure lipid particles due to the difficulty of solidification when using N. In the case of the CO-assisted process, the average size of composite particles is slightly smaller than that of the pure myristic acid particles, but slightly larger than that of the pure tripalmitin particles. The dissolution study reveals that the drug release from the ibuprofen/myristic acid particles is enhanced in comparison with that of the unprocessed ibuprofen. For the particles produced by the N-assisted process, the X-ray diffraction (XRD) patterns clearly indicate the encapsulation of ibuprofen into myristic acid. The obtained ibuprofen/tripalmitin composite particles with 5% or 20% of ibuprofen (in mass) evidently show the controlled drug release: only about 20% of the drug is released in 500 min from the ibuprofen/tripalmitin composite particles consisting of 20% ibuprofen prepared by the CO-assisted process, and the same release is obtained from the ibuprofen/tripalmitin composite particles containing 5% ibuprofen prepared by the N-assisted process.
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Hierarchical porous metal-organic frameworks/polymer microparticles for enhanced catalytic degradation

《化学科学与工程前沿（英文）》 2022年 第16卷 第6期   页码 939-949 doi: 10.1007/s11705-022-2152-4

摘要： This work reports on a simple microfluidic strategy to controllably fabricate uniform polymeric microparticles containing hierarchical porous structures integrated with highly accessible catalytic metal organic frameworks for efficient degradation of organic contaminants. Monodisperse (W1/O)/W2 emulsion droplets generated from microfluidics are used as templates for the microparticle synthesis. The emulsion droplets contain tiny water microdroplets from homogenization and water nanodroplets from diffusion-induced swollen micelles as the dual pore-forming templates, and Fe-based metal-organic framework nanorods as the nanocatalysts. The obtained microparticles possess interconnected hierarchical porous structures decorated with highly accessible Fe-based metal-organic framework nanorods for enhanced degradation of organic contaminants via a heterogeneous Fenton-like reaction. Such a degradation performance is highlighted by using these microparticles for efficient degradation of rhodamine B in hydrogen peroxide solution. This work provides a simple and general strategy to flexibly combine hierarchical porous structures and catalytic metal-organic frameworks to engineer advanced microparticles for water decontamination.

关键词： metal-organic framework     polymer microparticle     nanocatalyst     decontamination     organic contaminant    

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Experimental and DFT insights into nitrogen and sulfur co-doped carbon nanotubes for effective desulfurization

《环境科学与工程前沿（英文）》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1397-3

摘要：

• Synthesis of NS-CNTS is used in a high desulfurization performance.

关键词： Dibenzothiophene (DBT)     Tertiary methyl mercaptan     Adsorption     Carbon nano tube (CNT)     Desulfurization     Doping    

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Modern developments related to nanotechnology and nanoengineering of concrete

Konstantin SOBOLEV

《结构与土木工程前沿（英文）》 2016年 第10卷 第2期   页码 131-141 doi: 10.1007/s11709-016-0343-0

摘要： This paper reports on modern developments related to nanotechnology of cement and concrete. Recent advances in instrumentation and design of advanced nano-composite materials is discussed. New technological directions and historical milestones in nanoengineering and nanomodi?cation of cement-based materials are presented. It is concluded that there is a strong potential of nanotechnology to improve the performance of cement-based materials.

关键词： nanotechnology     cement     concrete     nanoparticle     nano-composite     nanomodification     carbon nanotubes     C-S-H gel     photocatalyst    

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Pyrolysis transformation of ZIF-8 wrapped with polytriazine to nitrogen enriched core-shell polyhedrons carbon

Nuoya Wang, Xinhua Huang, Lei Zhang, Jinsong Hu, Yimin Chao, Ruikun Zhao

《化学科学与工程前沿（英文）》 2021年 第15卷 第4期   页码 944-953 doi: 10.1007/s11705-020-2005-y

摘要： This work presents a simple effective strategy to synthesize -doped and shell-controlled carbon nanocages through a package baking approach. A green approach to synthesize core-shell ZIF-8@PTZ nanoparticles involves zinc contained ZIF-8 core wrapped by a N-enriched polytriazine (PTZ). Synthesized core-shell ZIF-8@PTZ nanoparticles are calcinated to further sublime zinc through PTZ shell and washed by HCl, leaving a porous carbon structure. At the meantime, hollow cavities were introduced into N-doped carbon polyhedrons via the sacrifice of ZIF-8 template (noted as ZIF-8@C/N-x). The electrochemical performance of the ZIF-8@C/N-x as supercapacitor electrode has demonstrated high energy density and specific capacitance, as well as a long-term cycleability showing 92% capacitance retention after 10000 cycles. There is a systematic correlation between micro-/meso-porosity of ZIF-8@C/N-x and their electrochemical performances.

关键词： core-shell     EDLC electrode     microporos nano polygons     nitrogen doped carbon    

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载有穿心莲内酯的微乳液和纳米乳液制剂——改善“苦味之王” 的生物利用度、靶组织分布及功效 Review

Marta Casamonti, Laura Risaliti, Giulia Vanti, Veri Piazzini, Maria Camilla Bergonzi, Anna Rita Bilia

《工程（英文）》 2019年 第5卷 第1期   页码 69-75 doi: 10.1016/j.eng.2018.12.004

摘要：

穿心莲内酯（AG）为爵床科植物穿心莲（Andrographis paniculata）的特征性成分。该植物为亚洲著名药用植物，在印度、中国和泰国得到广泛使用。《中华人民共和国药典》（简称《中国药典》）收载了中药穿心莲的药材标准，记载这种草药的煎剂可“清热、解毒、消肿”。穿心莲具有众多潜在活性，从抗炎到抗糖尿病作用，从神经保护到抗肿瘤活性，从保肝到抗肥胖特性。然而，AG的生物利用度较低、水溶性较差，因此限制了给药后在体内的分布和积累。此外，AG在胃肠道碱性和酸性环境中不稳定，据报道其半衰期极为短暂。在为提高AG的水溶性和渗透性而采取的各种策略中，技术途径是开发适合的给药系统最有用的方法。本文综述了与载有AG的微粒（MP）和纳米颗粒（NP）相关的已有研究工作。目前已开发出基于聚乳酸- 羟基乙酸（PLGA）、海藻酸和葡聚糖衍生物的微粒，分别用于肠胃外口服和肺部给药。NP包括囊泡（脂质体和类脂质体）、聚合NP（基于聚乙烯醇、聚合苯基硼酸、PLGA、人血清白蛋白、聚氰基丙烯酸乙酯和聚合物胶束）、固体脂质NP、微乳液（ME）和纳米乳液（NE）、黄金NP、纳米晶体和纳米混悬液。据报道，所述载有AG的给药系统的生物利用度、靶组织分布和功效都得到了优化。

关键词： 穿心莲     爵床科     穿心莲内酯     给药系统     微粒子和纳米颗粒     提高生物利用度     靶组织分布    

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Water-dispersible nano-pollutions reshape microbial metabolism in type-specific manners: A metabolic

《环境科学与工程前沿（英文）》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1548-1

摘要：

• Water-dispersible nano-pollutions exhibit type-specific toxic effects on E. coli.

关键词： Nano-toxicity     Nano-plastics     Quantum dots     Microbial metabolite     Metabolic dysregulation    

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Laboratory investigation of emulsified asphalt binder modified with wood-derived nano-cellulose and nano

Yunge WEI; Jiayu WANG; Ruoyu LI; Ling XU; Feipeng XIAO

《结构与土木工程前沿（英文）》 2022年 第16卷 第11期   页码 1474-1485 doi: 10.1007/s11709-022-0869-2

摘要： Emulsified asphalt is the primary material for preventive maintenance and cold-mix paving, but its low cohesive strength and poor mechanical properties limit its wide application, even with polymer modification. In this study, Styrene-Butadiene Rubber (SBR) emulsified asphalt was modified with nano-cellulose materials, namely nano paper-cellulose (NPC) and wood-derived nano-cellulose (WDC), to improve its properties. A novel preparation method of nano-cellulose solution was developed, including blending, ultrasonic stirring, and centrifugal treatment. Four types of nano-cellulose solution (0.5% NPC, 0.5%, 1.0%, and 1.5% WDC by weight of water) were selected. The microscopy analysis indicated that 0.5% WDC emulsion had a smaller particle size than 1.5% WDC emulsion. The rheology test indicated that WDC modified residue improved rutting resistance with the increased solution dosage due to the cross-linking effect, but its creep-and-recovery performance was worse than that of SBR emulsion residue. The NPC modified binder had a higher rutting factor than WDC modified binder at the same dosage after short-term aging. In addition, 1.0% WDC could be regarded as the optimal dosage in terms of fatigue and low-temperature performance. Furthermore, Fourier Transform Infrared Spectroscopy (FTIR) results showed that 0.5% NPC modified residue performed better in long-term aging resistance compared with 0.5%WDC modified asphalt.

关键词： nano-cellulose     emulsified asphalt binder     dispersion     rheological properties     Fourier transform infrared spectroscopy    

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Effects of different types of biochar on the properties and reactivity of nano zero-valent iron in soil

《环境科学与工程前沿（英文）》 2021年 第15卷 第5期 doi: 10.1007/s11783-021-1388-4

摘要：

• Biochar enhanced the mobility and stability of zero-valent iron nanoparticles.

关键词： Nano zero-valent iron     Biochar     BDE209     Transport     Soil    

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Immunological effects of nano-enabled hyperthermia for solid tumors: opportunity and challenge

《化学科学与工程前沿（英文）》 2022年 第16卷 第3期   页码 333-344 doi: 10.1007/s11705-021-2059-5

摘要： Compared to conventional hyperthermia that is limited by low selectivity and severe side effects, nano-enabled hyperthermia yields great potentials to tackle these limitations for cancer treatment. Another major advance is the observation of immunological responses associated with nano-enabled hyperthermia, which introduces a new avenue, allowing a potential paradigm shift from the acutely effective and cytotoxicity-centric response to the next-phase discovery, i.e., long-lasting and/or systemic anti-tumor immunity. This perspective first discusses the temperature-gradient and the spatially-structured immunological landscape in solid tumors receiving nano-enabled hyperthermia. This includes the discussion about underlying mechanism such as immunogenic cell death, which initiates a profound immunological chain reaction. In order to propagate the immune activation as a viable therapeutic principle, we further discussed the tumor type-specific complexity in the immunological tumor microenvironment, including the creative design of nano-enabled combination therapy to synergize with nano-enabled hyperthermia.

关键词： nano-enabled hyperthermia     immunogenic cell death     heterogeneous immunological landscape     tumor microenvironment    

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Pore structure of cementitious material enhanced by graphitic nanomaterial: a critical review

S.A. GHAHARI, E. GHAFARI, L. ASSI

《结构与土木工程前沿（英文）》 2018年 第12卷 第1期   页码 137-147 doi: 10.1007/s11709-017-0431-9

摘要： Carbon nano tubes (CNT) has been introduced as an efficient nanomaterial in order to improve the mechanical and durability properties of concrete. The effect of CNT on the microstructures of cementitious materials has been widely reported. This paper combines a critical review on the effect of CNT on the pore and microstructure of cement composite with a discussion on the porosity measurement of pastes containing CNT using mercury intrusion porosimetry techniques (MIP). It was found that, surface treatment by H SO and HNO solution forms carboxyl acid groups on CNTs’ surfaces that lead to the improvement of reinforcement. In this scope, this review paper involves analyzing the effect of CNT on the microstructure and the pore structure of cementitious materials. The existing methods of measuring the porosity of cementitious material are reviewed, in particular, the contact angle measurement is discussed in detail in which the most effective parameters and possible errors of calculation is presented.

关键词： carbon nano tubes     microstructure     porosity     mercury intrusion porosimetry     cement composite    

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diannexin prevents preeclampsia-like symptoms in a pregnant mouse model via reducing the release of microparticles

《医学前沿（英文）》 2022年 第16卷 第6期   页码 919-931 doi: 10.1007/s11684-021-0918-6

摘要： Preeclampsia (PE) is characterized by placenta-mediated pregnancy complication. The only effective treatment for PE is the delivery of the placenta. However, this treatment may cause preterm birth and neonatal death. Therefore, preventing PE is needed. The mechanism of PE involves abnormal placentation, which leads to the release of anti-angiogenic and inflammatory mediators into maternal circulation. These mediators contribute to systemic vascular dysfunction, inflammatory responses, and excessive thrombin generation. Microparticles (MPs) are reportedly involved in PE by promoting the thromboinflammatory response. This study describes a strategy to prevent PE by reducing MP release using the recombinant protein, diannexin. Results showed that the patients with PE had elevated MP number and procoagulant activity and increased NLRP3 inflammasome activation. Additionally, diannexin remarkably reduced the release of MPs from activated cells by binding to phosphatidylserine exposed on the surface of activated cells. Moreover, in vivo results showed that diannexin could prevent PE-like symptoms by decreasing MPs and NLRP3 inflammasome activation in pregnant mice. Furthermore, diannexin effectively inhibited trophoblast cell activation and NLRP3 inflammasome activation in vitro. These findings suggested that diannexin inhibited MP release and might be an effective therapeutic strategy for preventing PE.

关键词： preeclampsia     recombinant protein diannexin     microparticle     NLRP3 inflammasome     phosphatidylserin    

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标题 作者 时间 类型 操作

Carbonized nano/microparticles for enhanced mechanical properties and electromagnetic interference shielding

Rao Arsalan KHUSHNOOD,Sajjad AHMAD,Luciana RESTUCCIA,Consuelo SPOTO,Pravin JAGDALE,Jean-Marc TULLIANI,Giuseppe Andrea FERRO

期刊论文

Pd nano-catalyst supported on biowaste-derived porous nanofibrous carbon microspheres for efficient catalysis

期刊论文

Diversity-oriented synthesis of blue emissive nitrogen heterocycles and their conjugation with carbonnano-onions

Viviana Maffeis, Lisa Moni, Daniele Di Stefano, Silvia Giordani, Renata Riva

期刊论文

Preparation of ibuprofen/lipid composite microparticles by supercritical fluid technique

WANG Xia, CHEN Hui, GUO Yanni, SU Yuzhong, WANG Hongtao, LI Jun

期刊论文

Hierarchical porous metal-organic frameworks/polymer microparticles for enhanced catalytic degradation

期刊论文

Experimental and DFT insights into nitrogen and sulfur co-doped carbon nanotubes for effective desulfurization

期刊论文

Modern developments related to nanotechnology and nanoengineering of concrete

Konstantin SOBOLEV

期刊论文

Pyrolysis transformation of ZIF-8 wrapped with polytriazine to nitrogen enriched core-shell polyhedrons carbon

Nuoya Wang, Xinhua Huang, Lei Zhang, Jinsong Hu, Yimin Chao, Ruikun Zhao

期刊论文

载有穿心莲内酯的微乳液和纳米乳液制剂——改善“苦味之王” 的生物利用度、靶组织分布及功效

Marta Casamonti, Laura Risaliti, Giulia Vanti, Veri Piazzini, Maria Camilla Bergonzi, Anna Rita Bilia

期刊论文

Water-dispersible nano-pollutions reshape microbial metabolism in type-specific manners: A metabolic

期刊论文

Laboratory investigation of emulsified asphalt binder modified with wood-derived nano-cellulose and nano

Yunge WEI; Jiayu WANG; Ruoyu LI; Ling XU; Feipeng XIAO

期刊论文

Effects of different types of biochar on the properties and reactivity of nano zero-valent iron in soil

期刊论文

Immunological effects of nano-enabled hyperthermia for solid tumors: opportunity and challenge

期刊论文

Pore structure of cementitious material enhanced by graphitic nanomaterial: a critical review

S.A. GHAHARI, E. GHAFARI, L. ASSI

期刊论文

diannexin prevents preeclampsia-like symptoms in a pregnant mouse model via reducing the release of microparticles

期刊论文