Droplet最新文献_第7页

Frontispiece, Volume 4, Number 3, July 2025 封面，第四卷，第三期，2025年7月

Droplet Pub Date : 2025-07-21 DOI: 10.1002/dro2.70025

Gonzalo Almanza, Ricardo M. Trujillo, Diego Sánchez-Saldaña, Øystein Røsand, Morten Høydal, Maria Fernandino, Carlos A. Dorao

引用次数: 0

Front Cover, Volume 4, Number 3, July 2025 封面，第四卷，第三期，2025年7月

Droplet Pub Date : 2025-07-21 DOI: 10.1002/dro2.70028

Yutong Wang, Shenghao Yang, Chonglei Hao, Binhong Dou, Lei Zhang, Yongle Feng, Shichuan Wang, Fuzhou Niu, Ran Tao, Sen Wang, Bing Li, Zuankai Wang

引用次数: 0

Ethanol evaporation drives ester assembly and particle deposition in droplets of Chinese distilled liquors 乙醇蒸发驱动中国白酒液滴中的酯组装和颗粒沉积

IF 9.1

Droplet Pub Date : 2025-06-19 DOI: 10.1002/dro2.70017

Zhi Zhang, Haoran Fu, Yang Zhong, Lu Cai, Keyi Zuo, Shiyuan Deng, Tieyuan Cheng, Bo Gao, Ning Wang, Jun Liu, Zaixin Li, Huibo Luo, Siqi Yuan, Duyang Zang, Yongming Liu

{"title":"Ethanol evaporation drives ester assembly and particle deposition in droplets of Chinese distilled liquors","authors":"Zhi Zhang, Haoran Fu, Yang Zhong, Lu Cai, Keyi Zuo, Shiyuan Deng, Tieyuan Cheng, Bo Gao, Ning Wang, Jun Liu, Zaixin Li, Huibo Luo, Siqi Yuan, Duyang Zang, Yongming Liu","doi":"10.1002/dro2.70017","DOIUrl":"https://doi.org/10.1002/dro2.70017","url":null,"abstract":"Chinese distilled liquor, known as Baijiu, typically has a relatively high ethanol content (52 or 53% alcohol by volume, ABV) and is characterized by a powerful, heady scent. When its alcohol content is less than 45% ABV, Baijiu loses its flavor and becomes cloudy and tasteless; thus, it is relatively bland and thin. Since this phenomenon has not been reasonably explained, the aim of this study is to determine its underlying mechanism by examining the droplet evaporation. A 1.0 µL of droplets were applied to the substrate surface for evaporation. The results revealed that a reduction in the alcohol content (<45% ABV) triggered the self-assembly of unique long-chain fatty acid ethyl esters into various nano- or microparticles with sizes ranging from 100 nm to 10 µm within the Baijiu droplets. These particles deposit under the influence of internal flow and exhibit Baijiu-specific coffee-ring effects after drying. Interestingly, these particles encapsulated the water-soluble or insoluble flavor chemicals, resulting in the brightness and aroma/flavor of Baijiu decreased radically; this is the reason that a high alcohol content is needed in Baijiu. These findings offer new insights for the quality control of low-alcohol Baijiu and Baijiu identification.","PeriodicalId":100381,"journal":{"name":"Droplet","volume":"4 4","pages":""},"PeriodicalIF":9.1,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/dro2.70017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145384918","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}

引用次数: 0

Micro-size aperture surface acoustic wave generator for cell lysis 用于细胞裂解的微孔径表面声波发生器

Droplet Pub Date : 2025-06-11 DOI: 10.1002/dro2.70015

Gonzalo Almanza, Ricardo M. Trujillo, Diego Sánchez-Saldaña, Øystein Røsand, Morten Høydal, Maria Fernandino, Carlos A. Dorao

{"title":"Micro-size aperture surface acoustic wave generator for cell lysis","authors":"Gonzalo Almanza, Ricardo M. Trujillo, Diego Sánchez-Saldaña, Øystein Røsand, Morten Høydal, Maria Fernandino, Carlos A. Dorao","doi":"10.1002/dro2.70015","DOIUrl":"https://doi.org/10.1002/dro2.70015","url":null,"abstract":"The breakage of the cellular membrane for releasing intracellular material is the starting point for several diagnostics or treatment processes. Surface acoustic waves can provide a novel and chemical-free approach by inducing acoustic streaming generating high shear stress inside a droplet containing cells. However, the power required to achieve an efficient cell lysis can lead to the displacement of the droplet and even the nebulization of the droplet. This effect is aggravated as the droplet size is reduced. In this work, we demonstrate the possibility overcoming the mentioned issue by a micro-size aperture surface acoustic wave generator operating at high frequency. By reducing the aperture of the surface acoustic wave generator to a fraction of the diameter of the deposited droplet, the localized acoustic streaming can lead to high shear stress while not exceeding the adhesion force of the droplet preventing droplet motion or nebulization. This concept can lyse AC16 human cardiomyocyte cells with efficiencies of 80% comparable to a chemical lysis method in 60 s of exposure time.","PeriodicalId":100381,"journal":{"name":"Droplet","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/dro2.70015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672861","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}

引用次数: 0

A droplet splitter: Simple, controlled and efficient droplet splitting using superhydrophobic pyramid structures 液滴分离器：使用超疏水金字塔结构进行简单、可控和高效的液滴分裂

Droplet Pub Date : 2025-05-09 DOI: 10.1002/dro2.70014

Qibo Liu, Qitong Su, Qiu Hong, Yao Lu, Shuai Huang, Kai Feng

{"title":"A droplet splitter: Simple, controlled and efficient droplet splitting using superhydrophobic pyramid structures","authors":"Qibo Liu, Qitong Su, Qiu Hong, Yao Lu, Shuai Huang, Kai Feng","doi":"10.1002/dro2.70014","DOIUrl":"https://doi.org/10.1002/dro2.70014","url":null,"abstract":"Droplet splitting technology presents considerable potential for advancing applications in sample encapsulation, manipulation, chemical reaction control, and precision measurement systems. However, existing methodologies frequently encounter limitations related to complex operation and high cost. To address the need for controllable, high-precision, and cost-efficient droplet splitting, this study combines three-dimensional printing technology with superhydrophobic surface modification to fabricate pyramid microstructures with customized splitting functionalities. The pyramidal sharp edges act as “fluidic blades” to split droplets through the synergistic interaction of edge-induced capillary forces and inertial forces generated at the liquid film periphery during spreading dynamics. Upon penetration by the pyramid apex, the droplet forms an annular liquid ring that subsequently fragments into sub-droplets, enabling programmable splitting. A comprehensive experimental and computational framework was developed to investigate splitting dynamics, force distribution patterns, and geometric dependence of pyramid structures on splitting performance. Results indicate that increased Weber numbers, larger droplet volumes, and reduced pyramid apex angles markedly improve splitting controllability. Additionally, six- and 12-sided pyramid-based splitting/collection devices were engineered to demonstrate practical implementations, including on-demand droplet splitting and liquid marble synthesis. This work establishes a scalable, low-cost platform for precision droplet manipulation with significant implications for microfluidic devices and lab-on-a-chip technologies.","PeriodicalId":100381,"journal":{"name":"Droplet","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/dro2.70014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672924","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}

引用次数: 0

Onsager relation for electrokinetics at surfactant-covered bubble film 表面活性剂覆盖气泡膜电动力学的Onsager关系

Droplet Pub Date : 2025-05-07 DOI: 10.1002/dro2.70007

Meng Yan, Yueke Niu, Miao Sun, Yanbo Xie

引用次数: 0

Thermo-magnetic soft robot for adaptive locomotion and delivery 用于自适应运动和递送的热磁软机器人

Droplet Pub Date : 2025-04-28 DOI: 10.1002/dro2.70016

Yutong Wang, Shenghao Yang, Chonglei Hao, Binhong Dou, Lei Zhang, Yongle Feng, Shichuan Wang, Fuzhou Niu, Ran Tao, Sen Wang, Bing Li, Zuankai Wang

{"title":"Thermo-magnetic soft robot for adaptive locomotion and delivery","authors":"Yutong Wang, Shenghao Yang, Chonglei Hao, Binhong Dou, Lei Zhang, Yongle Feng, Shichuan Wang, Fuzhou Niu, Ran Tao, Sen Wang, Bing Li, Zuankai Wang","doi":"10.1002/dro2.70016","DOIUrl":"https://doi.org/10.1002/dro2.70016","url":null,"abstract":"Soft robots based on stimuli-responsive materials, such as those responsive to thermal, magnetic, or light stimuli, hold great potential for adaptive locomotion and multifunctionality in complex environments. Among these, liquid crystal elastomers (LCEs) and magnetic microparticles have emerged as particularly promising candidates, leveraging their thermal responsiveness and magnetic controllability, respectively. However, integrating these modes to achieve synergistic multimodal actuation remains a significant challenge. Here, we present the thermo-magnetic petal morphing robot, which combines LCEs with embedded magnetic microparticles to enable reversible shape morphing via remote light-to-thermal actuation and high-speed rolling locomotion under external magnetic fields. The robot can achieve rapid deformation under near-infrared light, transitioning from a closed spherical to an open cross-like configuration with consistent shape recovery across multiple cycles, and demonstrates a maximum locomotion speed of 30 body lengths per second, outperforming many state-of-the-art soft robots. Moreover, the robot's performance remains robust across dry, wet, and underwater conditions, with adjustable magnetic particle concentrations allowing tunable actuation performance. Our work addresses the need for soft robots with enhanced versatility and adaptability in complex environments, paving the way for applications in areas such as targeted drug delivery and industrial material handling.","PeriodicalId":100381,"journal":{"name":"Droplet","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/dro2.70016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673160","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}

引用次数: 0

Frontispiece, Volume 4, Number 2, April 2025 封面，第四卷，第2期，2025年4月

Droplet Pub Date : 2025-04-23 DOI: 10.1002/dro2.70009

Tong Tong, Huaiqing Hu, Yuanhao Xie, Jing Jin

引用次数: 0

Inside Front Cover, Volume 4, Number 2, April 2025 封面内页，第四卷，第二期，2025年4月

Droplet Pub Date : 2025-04-23 DOI: 10.1002/dro2.70012

Zhejun Chong, Yi Zeng, Youlong Kang, Ke Ding, Xin Du, Zhongze Gu

引用次数: 0

Front Cover, Volume 4, Number 2, April 2025 封面，第四卷，第2期，2025年4月

Droplet Pub Date : 2025-04-23 DOI: 10.1002/dro2.70008

Tianhua Chen, Wenming Li

引用次数: 0