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Advances in inorganic nanoparticles trapping stiffness measurement:A promising tool for energy and environmental study

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能源评论(英文) 2023年第2期2卷 13-31页

作者： Xiaolin Chen Jiajie Chen Jianxing Zhou Xiaoqi Dai Yuhang Peng Yili Zhong Ho-Pui Ho Bruce Zhi Gao Han Zhang Junle Qu Yonghong Shao State Key Laboratory of Radio Frequency Heterogeneous Integration Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronics EngineeringShenzhen UniversityShenzhen518060China Department of Biomedical Engineering The Chinese University of Hong KongShatinHong Kong Department of Bioengineering and COMSET Clemson UniversityClemsonSC29634USA

Optical tweezers system has emerged as an efficient tool to manipulate tiny particles in a non-invasive way.Trapping stiffness,as an essential parameter of an optical potential well,represents the trapping stability.Additionally,trapping inorganic nanoparticles such as metallic nanoparticles or other functionalized inorganic nanoparticles is important due to their properties of good stability,high conductivity,tolerable toxicity,etc.,which makes it an ideal detection strategy for bio-sensing,force calculation,and determination of particle and environmental properties.However,the trapping stiffness measurement(TSM)methods of inorganic nanoparticles have rarely been analyzed and summarized.Here,in this review,the principle and methods of TSM are analyzed.We also systematically summarize the progress in acquiring inorganic particles trapping stiffness and its promising applications.In addition,we provide prospects of the energy and environment applications of optical tweezering technique and TSM.Finally,the challenges and future directions of achieving the nanoparticles trapping stiffness are discussed.

关键词： Optical tweezers Optothermal tweezers Trapping stiffness measurement inorganic nanoparticles Energy and environment applications

一种通用静电组装策略用于印刷无机纳米颗粒及其在大面积钙钛矿太阳电池中的应用

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Science China Materials 2024年第5期67卷 1602-1611页

作者：李文杰褚昭阳李豪杰李丰邢直范宝锦孟祥川余德见梁超章少华胡笑添陈义旺 College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry(IPEC)/Film Energy Chemistry for Jiangxi Provincial Key Laboratory(FEC) Nanchang University999 Xuefu AvenueNanchang330031China Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education Jiangxi Normal University99 Ziyang AvenueNanchang330022China Joint Key Laboratory of the Ministry of Education Institute of Applied Physics and Materials EngineeringUniversity of MacaoMacao999078China MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter School of PhysicsNational Innovation Platform(Center)for Industry-Education Integration of Energy Storage TechnologyXi’an Jiaotong UniversityXi’an710049China Peking University Yangtze Delta Institute of OptoelectronicsNantong226010China

无机纳米颗粒作为一种极具前景的材料,在钙钛矿太阳电池的传输层中得到了广泛应用.然而,无机纳米颗粒易于聚集的特性阻碍了其进一步的发展.在大面积制备过程中,无机纳米颗粒的聚集加剧了“咖啡环效应”,导致薄膜不均匀,使得底部界面性... 详细信息

无机纳米颗粒作为一种极具前景的材料,在钙钛矿太阳电池的传输层中得到了广泛应用.然而,无机纳米颗粒易于聚集的特性阻碍了其进一步的发展.在大面积制备过程中,无机纳米颗粒的聚集加剧了“咖啡环效应”,导致薄膜不均匀,使得底部界面性能较差,进而影响钙钛矿薄膜的结晶,最终导致整个器件性能下降.为解决这一问题,我们将一种带电聚合物一一聚乙烯亚胺引入至无机纳米颗粒溶液中.聚乙烯亚胺的带电性质对无机纳米颗粒的聚集起到了显著的抑制作用,此外,添加聚乙烯亚胺还增加了无机纳米颗粒溶液的粘度,有助于减少薄膜上的负面咖啡环效应.最终,我们在基于1-cm^(2)正式结构且使用SnO_(2)传输层的器件上实现了23.2%的光电转换效率.为进一步证明这一策略的普适性,我们还将此策略验证基于NiO_(x)传输层的1-cm^(2)反式器件,其转换效率超过20%.

关键词： perovskite solar cells inorganic nanoparticles large-area device electrostatic assembly technique

inorganic nanoparticles for Delivery and Cancer Immunotherapy

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Inorganic Nanoparticles for Delivery and Cancer Immunotherap...

Hybrid Janus Nanotubes with Tunable Internal Pore Size Disassembled from Mesoporous Block Copolymer-based Hybrid Scaffolds

中国化学会第十届全国无机化学学术会议

作者： Chengzhong Yu Australian Institute for Bioengineering and Nanotechnology The University of Queensland School of Chemistry and Molecular Engineering East China Normal University

Engineered inorganic nanoparticles, such as silica, iron oxide, aluminum oxide and their composites have been applied for various drug delivery applications, conventionally as carriers. When nanoparticles are selected as drug delivery systems, one may ask three questions: why nanoparticles, where to deliver and what to deliver? For the first question, we have demonstrated the advantages of silica-based nanoparticles from four aspects. 1. Nanoparticle surface roughness and delivery performance. We have shown that silica nanoparticles with a rough surface are better delivery vehicles for pDNA, siRNA and proteins. 2. Nanoparticle composition and adjuvanticity. We have shown that the composition of nanoparticles is important as both adjuvants and delivery vehicles in promoting immune responses. 3. Nanoporous structure and bioavailability. It is shown that the pore sizes of ordered mesoporous silica materials can be adjusted at sub-nm precision. A pore size – solubility relationship is obtained which provides a novel strategy to improve the bioavailability of hydrophobic drugs. 4. Nanoparticle asymmetry and adjuvanticity. We have prepared mesoporous silica nanoparticles with asymmetrical structures. The asymmetrical nanoparticles exhibited a higher level of uptake and maturation of antigen presenting cells compared to conventional symmetrical ones;and delivered an antigen peptide in vivo with improved immune response. We will answer the second and third questions relevant to applications of nanoparticles, with highlights given to applications for sustainable ecology and healthcare. Understanding the relationship between structure and property of inorganic nanoparticles holds promise in the design of advanced inorganic nanoparticles with unprecedented functionalities, not limited as carriers. We will demonstrate how to use classic iron oxide and alumina-silica chemistry in activating immune systems for vaccine delivery and cancer immunotherapy.

关键词： inorganic nanoparticles drug delivery cancer immunotherapy nano-pesticide vaccine

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Chinese Journal of Polymer Science 2022年第10期40卷 1165-1172,I0007页

作者： Chang-Xu Liu Li-Jie Duan Nan Yan Wei Jiang State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Chemistry and Life Science Changchun University of TechnologyChangchun 130012China

The hybrid Janus nanomaterials have captured considerable attention since the asymmetric structure can combine the properties of each component and display synergistic applications.However,the precise design of the specific hybrid Janus nanostructures still remains a formidable challenge.Here,we for the first time report the fabrication of novel and highly uniform inorganic/organic hybrid Janus nanotubes via disassembling the mesoporous inorganic nanoparticles(NPs)/polystyrene-block-poly(4-vinylpyridine)(PS-b-P4VP)hybrid sheets,which are generated through the in situ reduction of functional metal precursors on the prepared PS-b-P4VP mesoporous scaffolds.More importantly,the internal pore size of the hybrid Janus nanotubes can be precisely tuned by readily controlling the swelling time of the PS-b-P4VP sheet-like assemblies in a selective solvent for P4VP domains,thus generating the particular inorganic/organic hybrid Janus nanotubes with adjustable inner diameter size.We believe that our finding will provide an efficient and universal route to fabricate the particular inorganic/organic hybrid nanotubes for hierarchical functional devices and nanomaterials.

关键词： Hybrid Janus nanotubes Block copolymer inorganic nanoparticles Disassembly Mesoporous sheets

Mesoporous PtPd nanoparticles for ligand-mediated and imaging-guided chemo-photothermal therapy of breast cancer

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Nano Research 2020年第6期13卷 1739-1748页

作者： Yanpeng Jia Yang Song Ying Qu Jinrong Peng Kun Shi Dan Du He Li Yuehe Lin Zhiyong Qian State Key Laboratory of Biotherapy and Cancer Center West China HospitalSichuan Universityand Collaborative Innovation CenterChengdu610041China College of Optoelectronics Technology Chengdu University of Information TechnologyChengdu610225China School of Mechanical and Material Engineering Washington State UniversityPullmanWA99163USA

The synergistic therapy of chemotherapy and photothermal therapy(PTT)has been reported as a promising antitumor strategy.To achieve effective combination therapy,developing more suitable candidate nanomaterials with optimal photothermal property and high chemical drug loading capacity is very necessary.Herein,a bimetallic PtPd nanoparticle was synthesized with the merits of excellent photothermal effect and mesoporous structure for doxorubicin(DOX)loading.We further designed PtPd-ethylene glycol(PEG)-folic acid(FA)-doxorubicin(DOX)nanoparticle for chemo-photothermal therapy of MCF-7 tumor with folic acid engineering to achieve active targeting.Moreover,excellent photoacoustic(PA)imaging of PtPd-PEG-FA-DOX nanoparticles facilitated the precise in vivo tracking and further evaluation of nanoparticles’targeting effect.The in vitro and in vivo results both demonstrated PtPd-PEG-FA-DOX nanoparticles serve as a safe and promising system for effective treatment of MCF-7 tumor.

关键词： inorganic nanoparticles photoacoustic imaging porous structure photothermal therapy chemotherapy

Doped inorganic nanoparticles as Synergistically Enhanced T1-T2 Dual-Modal MRI Contrast Agents

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Doped Inorganic Nanoparticles as Synergistically Enhanced T1...

Recent advances in nanotherapeutics for the treatment and prevention of acute kidney injury

中国化学会第28届学术年会

作者： Zijian Zhou 1,Dengtong Huang 1,Zhenghuan Zhao 1,Jianfeng Bao 2,Zhong Chen 2,Jinhao Gao 1,* 1State Key Laboratory of Physical Chemistry of Solid Surfaces,The Key Laboratory for Chemical Biology of Fujian Province,and Department of Chemical Biology,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005.2 Department of Electronic Science and Fujian Key Laboratory of Plasma and Magnetic Resonance,Xiamen University,Xiamen 361005.

＜正＞The combination of multiple imaging modalities can yield complementary diagnostic information and offer synergistic advantages over the single modality.The T1-T2 dual-modal strategy for magnetic resonance imaging

关键词： Contrast agents inorganic nanoparticles T1-T2 dual-modal synergistic enhancement MRI

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Asian Journal of Pharmaceutical Sciences 2021年第4期16卷 432-443页

作者： Hui Yu Di Liu Gaofeng Shu Feiyang Jin Yongzhong Du Institute of Pharmaceutics College of Pharmaceutical SciencesZhejiang UniversityHangzhou 310058China

Acute kidney injury(AKI)is a serious kidney disease without specific medications currently except for expensive dialysis treatment.Some potential drugs are limited due to their high hydrophobicity,poor in vivo stability,low bioavailability and possible adverse effects.Besides,kidney-targeted drugs are not common and small molecules are cleared too quickly to achieve effective drug concentrations in injured kidneys.These problems limit the development of pharmacological therapy for AKI.Nanotherapeutics based on nanotechnology have been proved to be an emerging and promising treatment strategy for AKI,which may solve the pharmacological therapy dilemma.More and more nanotherapeutics with different physicochemical properties are developed to efficiently deliver drugs,increase accumulation and control release of drugs in injury kidneys and also directly as effective antioxidants.Here,we discuss the recent nanotherapeutics applied in the treatment and prevention of AKI with improved effectiveness and few side effects.

关键词： Nanotherapeutic Acute kidney injury Drug delivery Target Controlled release inorganic nanoparticles

Recent advances in novel aerogels through the hybrid aggregation of inorganic nanomaterials and polymeric fibers for thermal insulation

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Aggregate

Aggregate 2021年第2期2卷 100-126页

作者： Qiongzhen Liu Kun Yan Jiahui Chen Ming Xia Mufang Li Ke Liu Dong Wang Changzheng Wu Yi Xie Hubei Key Laboratory of Advanced Textile Materials and Application Hubei International Scientific and Technological Cooperation Base of Intelligent Textile Materials and ApplicationWuhan Textile UniversityWuhanChina College of Chemistry Chemical Engineering and BiotechnologyDonghua UniversityShanghaiChina Hefei National Laboratory for Physical Sciences at the Microscale CAS Centre for Excellence in NanoscienceUniversity of Science and Technology of ChinaHefeiChina

Aerogel is a nanoporous solid material with ultrahigh porosity,ultralow density,and thermal conductivity,which is considered to be one of the most promising high-performance insulation materials today.However,traditional pure inorganic aerogels(i.e.,silica aerogel)exhibit inherent structural brittleness,making their processing and handling difficult,and their manufacturing costs are relatively high,which limits their large-scale practical use.The recently developed aerogel based on polymer nanofibers has ultralow thermal conductivity and density,excellent elasticity,and designable multifunction.More importantly,one-dimensional polymer nanofibers are directly used as building blocks to construct the network of aerogels via a gelation-free process.This greatly simplifies the aerogel preparation process,thereby bringing opportunities for large-scale aerogel applications.The aggregation of inorganic nanomaterials and polymer nanofibers is considered to be a very attractive strategy for obtaining highly flexible,easily available,and multifunctional composite aerogels.Therefore,this review summarizes the recent advances in novel aerogels through the hybrid aggregation of inorganic nanomaterials and polymeric fibers for thermal insulation.The main processing routes,porous microstructure,mechanical properties,and thermal properties and applications of these aerogels are highlighted.In addition,various future challenges faced by these aerogels in thermal insulation applications are discussed in this review.

关键词： aerogels aggregate inorganic nanoparticles polymeric nanofibers thermal insulation