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Han Y, Fan G, Han Y, Huang X, Wang W, Luo X, Zhang Y, Han L. Suppression of coffee rings by controllable nanoparticle enrichment through superhydrophobicity-enabled dynamic evaporation. J Colloid Interface Sci 2024; 673:735-745. [PMID: 38901363 DOI: 10.1016/j.jcis.2024.06.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 05/13/2024] [Accepted: 06/14/2024] [Indexed: 06/22/2024]
Abstract
Coffee rings formed by evaporation of analyte-containing droplets are widely observed in micropatterning, bio-arrays, and trace detection. The coffee-ring effect caused by contact line pinning significantly affects the detection uniformity and sensitivity. Here, we propose a simple and operable method to effectively suppress coffee rings through controllable nanoparticles aggregation by superhydrophobicity-enabled dynamic evaporation. The gold nanoparticles (AuNPs) deposition footprint formed after dynamic evaporation on an integrated superhydrophobic surface was reduced by ∼3 orders of magnitude compared to that of non-interventional evaporation. Detailed experiments, numerical simulations, and theoretical studies have revealed that substrate wettability, temperature and droplet motion behaviors play significant roles in suppressing coffee-ring effect. More critically, based on the force mechanism of AuNPs at the interface/contact line, universal mathematical models and regime maps were established to classify the different deposition modes for AuNPs under different evaporation conditions by introducing dimensionless parameter G, revealing the enrichment mechanism of AuNPs in droplets under superhydrophobicity-enabled dynamic evaporation. The accuracy of the theoretical model and enrichment mechanism was demonstrated through the single-molecule detection of rhodamine 6G with excellent sensitivity (10-17 M, enhancement factor ∼1013) and perfect uniformity (relative standard deviation ∼5.57 %), which provides a valuable guide for research and applications of nanoparticle aggregation.
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Affiliation(s)
- Yunrui Han
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong 266237, China
| | - Guangpeng Fan
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong 266237, China
| | - Yingkuan Han
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong 266237, China
| | - Xin Huang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
| | - Weifeng Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, China
| | - Xiaoming Luo
- College of Pipeline and Civil Engineering, China University of Petroleum, No. 66 Changjiang West Road, Qingdao Shandong 266580, China
| | - Yu Zhang
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong 266237, China
| | - Lin Han
- Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong 266237, China.
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Hariharan V, Chowdhury AR, Rao S S, Chakravortty D, Basu S. phoP maintains the environmental persistence and virulence of pathogenic bacteria in mechanically stressed desiccated droplets. iScience 2023; 26:106580. [PMID: 37168573 PMCID: PMC10164896 DOI: 10.1016/j.isci.2023.106580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/02/2023] [Accepted: 04/04/2023] [Indexed: 05/13/2023] Open
Abstract
Despite extensive studies on kinematic features of impacting drops, the effect of mechanical stress on desiccated bacteria-laden droplets remains unexplored. In the present study, we unveiled the consequences of the impaction of bacteria-laden droplets on solid surfaces and their subsequent desiccation on the virulence of an enteropathogen Salmonella typhimurium (STM). The methodology elucidated the deformation, cell-cell interactions, adhesion energy, and roughness in bacteria induced by impact velocity and low moisture because of evaporation. Salmonella retrieved from the dried droplets were used to understand fomite-mediated pathogenesis. The impact velocity-induced mechanical stress deteriorated the in vitro viability of Salmonella. Of interest, an uninterrupted bacterial proliferation was observed in macrophages at higher mechanical stress. Wild-type Salmonella under mechanical stress induced the expression of phoP whereas infecting macrophages. The inability of STM ΔphoP to grow in nutrient-rich dried droplets signifies the role of phoP in sensing the mechanical stress and maintaining the virulence of Salmonella.
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Affiliation(s)
- Vishnu Hariharan
- Department of Mechanical Engineering, Indian Institute of Science, Bangalore, Karnataka State 560012, India
| | - Atish Roy Chowdhury
- Department of Microbiology & Cell Biology, Indian Institute of Science, Bangalore, Karnataka State 560012, India
| | - Srinivas Rao S
- Department of Mechanical Engineering, Indian Institute of Science, Bangalore, Karnataka State 560012, India
| | - Dipshikha Chakravortty
- Department of Microbiology & Cell Biology, Indian Institute of Science, Bangalore, Karnataka State 560012, India
- Indian Institute of Science Education and Research, Thiruvananthapuram, Kerala State 695551, India
- Corresponding author
| | - Saptarshi Basu
- Department of Mechanical Engineering, Indian Institute of Science, Bangalore, Karnataka State 560012, India
- Interdisciplinary Centre for Energy Research (ICER), Indian Institute of Science, Bangalore, Karnataka State 560012, India
- Corresponding author
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Gupta S, Thombare MR, Patil ND. Pinning and Depinning Dynamics of an Evaporating Sessile Droplet Containing Mono- and Bidispersed Colloidal Particles on a Nonheated/Heated Hydrophobic Substrate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:3102-3117. [PMID: 36800247 DOI: 10.1021/acs.langmuir.2c03270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The present study is primarily focused on the coupled effects of substrate heating, colloidal dispersion, and particle size variation on the contact line (CL) pinning-depinning dynamics of evaporating droplets containing mono- (3/4.5 μm) and bidispersed (3 and 4.5 μm) polystyrene colloidal particles on poly(dimethylsiloxane) (PDMS) substrates. Experimental techniques such as high-speed visualization, optical microscopy, infrared thermography, and scanning electron microscopy are implemented to discover the plausible causes dictating the underlying physics. In the case of the nonheated substrate, there exists a significant delay in the CL depinning for the evaporating droplets containing bidispersed particles, as opposed to the monodispersed cases. A first-order model is illustrated for the determination of the net horizontal force acting on the particles near the CL. Interestingly, the model's findings revealed that due to the difference of particle size in the case of the bidispersed suspension, the interparticle contact force gets modified, thus enhancing the CL pinning. For the heated substrate cases, droplets with monodispersed particles (3 μm) exhibit a substantial delay in the CL depinning, whereas a nearly complete pinning of the CL is witnessed for the case of bidispersed colloidal suspension droplets. It is mainly due to the augmentation of particle deposition near the CL because of the circulatory thermal Marangoni and outward capillary flows. Thus, the mobility of the CL is inhibited, which is further reinforced by the presence of different-sized particles. Eventually, a ring-like deposition is observed, as opposed to an inner deposit commonly observed from the evaporation of colloidal droplets on hydrophobic substrates.
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Affiliation(s)
- Suryansh Gupta
- Department of Mechanical Engineering, Indian Institute of Technology Bhilai, Raipur 492015, India
| | - Mahesh R Thombare
- Department of Mechanical Engineering, Indian Institute of Technology Bhilai, Raipur 492015, India
| | - Nagesh D Patil
- Department of Mechanical Engineering, Indian Institute of Technology Bhilai, Raipur 492015, India
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Ye L, Li S, Huang X. Effect of Nanoparticle Addition on Evaporation of Jet Fuel Liquid Films and Nanoparticle Deposition Patterns during Evaporation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:15973-15983. [PMID: 36521023 DOI: 10.1021/acs.langmuir.2c02306] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Jet fuel-based nanofluid fuel has been proposed for improving the energy density and utilization efficiency of jet fuel that is widely applied in aircraft powered by aviation turbine engines. To recognize the evaporation behavior of the formed liquid film as a jet fuel-based nanofluid sprayed onto the engine wall or blades, this paper presents the evaporation and deposition characteristics of the jet fuel-based nanofluid liquid film adhering on the hydrophilic substrate. The changes in contact line, contact angle, volume, and deposition pattern during liquid film evaporation under different substrate temperatures, different nanoparticle concentrations, and different kinds of nanoparticle additions were investigated. The effect of nano-Al addition on the evaporation kinetics and deposition pattern of the nano-Al/jet fuel (nAl/JF) nanofluid fuel liquid film was explored. Repeated pinning and de-pinning of contact lines during evaporation occurred, resulting in the formation of concentric multi-ring deposition patterns. The addition of nano-Al increased the evaporation rate and shortened the evaporation lifetime, demonstrating a promotion effect on jet fuel liquid film evaporation. The existence of an energy barrier shows that the movement of three-phase contact lines on the hydrophilic solid surface presented not a continuous sliding behavior but a "stick-slip" behavior, and there were multiple jumps in contact lines and contact angles. Finally, a comparison was made with the deposition pattern of jet fuel liquid films with different graphite and Fe nanoparticle additions during evaporation. The mechanism of deposition phenomena was deeply revealed by the analysis of capillary flow and Marangoni recirculation.
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Affiliation(s)
- Linhui Ye
- Institute of Energy, Department of Physics, Hangzhou Dianzi University, Hangzhou310018, China
| | - Shengji Li
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou310018, China
| | - Xuefeng Huang
- Institute of Energy, Department of Physics, Hangzhou Dianzi University, Hangzhou310018, China
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Iqbal R, Matsumoto A, Carlson D, Peters KT, Funari R, Sen AK, Shen AQ. Evaporation driven smart patterning of microparticles on a rigid-soft composite substrate. J Colloid Interface Sci 2022; 623:927-937. [DOI: 10.1016/j.jcis.2022.05.087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/11/2022] [Accepted: 05/15/2022] [Indexed: 10/18/2022]
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Sheng S, Yang H, Song Y, Chen R, Liang S, Fang H. Size-Dependent Spontaneous Separation of Colloidal Particles in Sub-Microliter Suspension by Cations. Int J Mol Sci 2022; 23:ijms23158055. [PMID: 35897631 PMCID: PMC9329736 DOI: 10.3390/ijms23158055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 01/27/2023] Open
Abstract
Great efforts have been made to separate micro/nanoparticles in small-volume specimens, but it is a challenge to achieve the simple, maneuverable and low-cost separation of sub-microliter suspension with large separation distances. By simply adding trace amounts of cations (Mg2+/Ca2+/Na+), we experimentally achieved the size-dependent spontaneous separation of colloidal particles in an evaporating droplet with a volume down to 0.2 μL. The separation distance was at a millimeter level, benefiting the subsequent processing of the specimen. Within only three separating cycles, the mass ratio between particles with diameters of 1.0 μm and 0.1 μm can be effectively increased to 13 times of its initial value. A theoretical analysis indicates that this spontaneous separation is attributed to the size-dependent adsorption between the colloidal particles and the aromatic substrate due to the strong hydrated cation-π interactions.
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Affiliation(s)
- Shiqi Sheng
- School of Physics, East China University of Science and Technology, Shanghai 200237, China; (S.S.); (Y.S.); (R.C.); (S.L.)
| | - Haijun Yang
- Interdisciplinary Research Center, Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory (SSRF, ZJLab), Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China;
- CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
| | - Yongshun Song
- School of Physics, East China University of Science and Technology, Shanghai 200237, China; (S.S.); (Y.S.); (R.C.); (S.L.)
| | - Ruoyang Chen
- School of Physics, East China University of Science and Technology, Shanghai 200237, China; (S.S.); (Y.S.); (R.C.); (S.L.)
| | - Shanshan Liang
- School of Physics, East China University of Science and Technology, Shanghai 200237, China; (S.S.); (Y.S.); (R.C.); (S.L.)
| | - Haiping Fang
- School of Physics, East China University of Science and Technology, Shanghai 200237, China; (S.S.); (Y.S.); (R.C.); (S.L.)
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
- Correspondence:
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Yang YJ, Gao ZF. Bio-inspired Superwettable Surface for the Detection of Cancer Biomarker: A Mini Review. Technol Cancer Res Treat 2022; 21:15330338221110670. [PMID: 35790461 PMCID: PMC9340408 DOI: 10.1177/15330338221110670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Inspired by nature, superwettable material-based biosensors have aroused wide interests due to their potential in cancer biomarker detection. This mini review mainly summarized the superwettable materials as novel biosensing substrates for the development of evaporation-induced enrichment-based signal amplification and visual biosensing method. Biosensing applications based on the superhydrophobic surfaces, superwettable micropatterned surfaces, and slippery lubricant-infused porous surfaces for various cancer biomarker detections were described in detail. Finally, an insight of remaining challenges and perspectives of superwettable biosensor is proposed.
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Affiliation(s)
- Yun Jun Yang
- Advanced Research Institute for Multidisciplinary Science, 12689Qilu University of Technology (Shandong Academy of Sciences), Jinan, People's Republic of China
| | - Zhong Feng Gao
- Advanced Materials Institute, 12689Qilu University of Technology (Shandong Academy of Sciences), Jinan, People's Republic of China.,Collaborative Innovation Center of Tumor Marker Detection Technology, Equipment and Diagnosis-Therapy Integration in Universities of Shandong, Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Chemistry and Chemical Engineering, 165082Linyi University, Linyi, People's Republic of China
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M KR, Misra S, Mitra SK. Microparticle Suspensions and Bacteria-Laden Droplets: Are They the Same in Terms of Wetting Signature? LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1588-1595. [PMID: 33459022 DOI: 10.1021/acs.langmuir.0c03365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Adhesion behavior of microbial pathogens on commonly encountered surfaces is one of the most pertinent questions now. We present the characterization of bacteria-laden droplets and quantify the adhesion forces on highly repellent surfaces with the help of a simple experimental setup. Comparing the force signature measured directly using an in-house capillary deflection-based droplet force apparatus, we report an anomalous adhesion behavior of live bacteria (E. coli)-laden droplets on repellent surfaces, which stands in stark contrast to the observed adhesion signature when the doping agent is changed to inert microparticles or the same bacteria in an incapacitated state. We showed that the regular contact angle measurements using optical goniometry is unable to differentiate between the live bacteria and the dead ones (including microparticles) and thus delineate its limitations and the complementary nature of the adhesion measurements in understanding the fundamental interfacial interaction of living organisms on solid surfaces.
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Affiliation(s)
- Kiran Raj M
- Micro & Nano-scale Transport Laboratory, Waterloo Institute for Nanotechnology, Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Sirshendu Misra
- Micro & Nano-scale Transport Laboratory, Waterloo Institute for Nanotechnology, Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Sushanta K Mitra
- Micro & Nano-scale Transport Laboratory, Waterloo Institute for Nanotechnology, Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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Iqbal R, Shen AQ, Sen A. Understanding of the role of dilution on evaporative deposition patterns of blood droplets over hydrophilic and hydrophobic substrates. J Colloid Interface Sci 2020; 579:541-550. [DOI: 10.1016/j.jcis.2020.04.109] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/06/2020] [Accepted: 04/26/2020] [Indexed: 11/24/2022]
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Yu YS, Wang MC, Zhu YQ, Zhou JZ, Zhou A. Evaporative deposition of mono- and bi-dispersed colloids on a polydimethylsiloxane (PDMS) surface. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Recent Developments on Colloidal Deposits Obtained by Evaporation of Sessile Droplets on a Solid Surface. J Indian Inst Sci 2019. [DOI: 10.1007/s41745-019-0105-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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