Surface Function Research Articles

Preparation of MDEA derived nitrogen-doped CQDs nanofluids and their CO2 capturing performance and mechanism investigation

Nanofluids acting as the third-generation absorbents are raising concern. However, the complex preparation method, high material cost, and instability hinder their further promotion. Herein, N-methyldiethanolamine (MDEA) as a classic organic amine solution was first used to prepare nitrogen-doped carbon quantum dots (CQDs) by a mild method, and the effective CQDs yield was determined by TEM, FT-IR, XPS, and fluorescence spectrometry. Generated nitrogen-doped CQDs have abundant surface function groups, a narrow size distribution (1–10 nm), and stable fluorescent properties. Moreover, CQDs nanofluids stability was comprehensively evaluated by Turbiscan stability analyzer, Zeta potential analyzer, and solid content analysis. The results indicated a high stability of CQDs in the amine solution. The CO2 capture performance of CQDs nanofluids was evaluated by a bubble reactor, and the maximum absorption enhancement index reached 1.27 in the mixed amine solution. The desorption process was also improved and nearly 6 % heat duty was saved. Finally, the enhancement mechanism of CQDs nanofluids was discussed. In contrast to other studies focusing on the mass transfer effect of nanofluids on macroscopic kinetics, the microscopic interaction effect between CQDs and CO2 was discussed by in-situ FT-IR and XPS. The results prove that apart from the physical adsorption effect, a chemical reaction also exists to capture CO2 by the nitrogen-doped structure and basic groups on CQDs surface, which endow the unique enhancement effect for CO2 capture system by CQDs. In general, the advantageous performance ensured the potential of CQDs nanofluids as advanced absorbents to achieve a low manufacturing cost and scale application.

Elucidating granulocytic myeloid-derived suppressor cell heterogeneity during Staphylococcus aureus biofilm infection.

Myeloid-derived suppressor cells (MDSCs) are pathologically activated immature myeloid cells with immunosuppressive activity that expand during chronic inflammation, such as cancer and prosthetic joint infection (PJI). Myeloid-derived suppressor cells can be broadly separated into 2 populations based on surface marker expression and function: monocytic myeloid-derived suppressor cells (M-MDSCs) and granulocytic myeloid-derived suppressor cells (G-MDSCs). Granulocytic myeloid-derived suppressor cells are the most abundant leukocyte infiltrate during PJI; however, how this population is maintained in vivo and cellular heterogeneity is currently unknown. In this study, we identified a previously unknown population of Ly6G+Ly6C+F4/80+MHCII+ MDSCs during PJI that displayed immunosuppressive properties ex vivo. We leveraged F4/80 and MHCII expression by these cells for further characterization using cellular indexing of transcriptomes and epitopes by sequencing, which revealed a distinct transcriptomic signature of this population. F4/80+MHCII+ MDSCs displayed gene signatures resembling G-MDSCs, neutrophils, and monocytes but had significantly increased expression of pathways involved in cytokine response/production, inflammatory cell death, and mononuclear cell differentiation. To determine whether F4/80+MHCII+ MDSCs represented an alternate phenotypic state of G-MDSCs, Ly6G+Ly6C+F4/80-MHCII- G-MDSCs from CD45.1 mice were adoptively transferred into CD45.2 recipients using a mouse model of PJI. A small percentage of transferred G-MDSCs acquired F4/80 and MHCII expression in vivo, suggesting some degree of plasticity in this population. Collectively, these results demonstrate a previously unappreciated phenotype of F4/80+MHCII+ MDSCs during PJI, revealing that a granulocytic-to-monocytic transition can occur during biofilm infection.

Effect of grinding conditions on oil shale surface: FTIR analysis

Grinding is an indispensable process in many industrial plants. Nonetheless, the ground products may pass through the surface and/or undergo structural changes that may affect subsequent processes. In this study, the changes in the oil shale surface during its dry grinding in a ball mill were followed by Fourier-transform infrared (FTIR) analysis under different grinding conditions such as grinding time, ball type (i.e. ceramic or steel), and number of balls. Moreover, the generated heat limits during grinding were revealed by correlating the change in surface function groups of the ground products with those of conventionally heated oil shale samples in a furnace. The results indicated that the more intense the grinding action, in terms of the number or size of grinding balls and the grinding time, the higher the variations in the ground products’ FTIR spectra, indicating the higher the surface oxidation of oil shale. More interestingly, correlating the FTIR spectra of the heated samples with those of the ground products indicated that the temperature inside the mill does not exceed 150 °C.

Membrane platform protein PulF of the Klebsiella type II secretion system forms a trimeric ion channel essential for endopilus assembly and protein secretion.

Type IV pili and type II secretion systems are members of the widespread type IV filament (T4F) superfamily of nanomachines that assemble dynamic and versatile surface fibers in archaea and bacteria. The assembly and retraction of T4 filaments with diverse surface properties and functions require the plasma membrane platform proteins of the GspF/PilC superfamily. Generally considered dimeric, platform proteins are thought to function as passive transmitters of the mechanical energy generated by the ATPase motor, to somehow promote insertion of pilin subunits into the nascent pilus fibers. Here, we generate and experimentally validate structural predictions that support the trimeric state of a platform protein PulF from a type II secretion system. The PulF trimers form selective proton or sodium channels which might energize pilus assembly using the membrane potential. The conservation of the channel sequence and structural features implies a common mechanism for all T4F assembly systems. We propose a model of the oligomeric PulF-PulE ATPase complex that provides an essential framework to investigate and understand the pilus assembly mechanism.

Influence of TiO2 nanofiller geometry on the rheological and optical properties of poly(acrylic acid)‐based nanocomposite hydrogels

AbstractThe properties of macroscopic polymer nanocomposites are highly dependent on the nanoparticle–polymer interfacial region, which varies with the morphology of the nanoparticles. Herein, we used TiO2 nanofillers with very low aspect ratio, the same chemical composition, and surface functions, but different geometries (nanospheres and nanoplates) dispersed in a poly(acrylic acid) matrix to analyze the influence of the nanoparticle geometry on the properties of nanocomposite hydrogels. The geometry was found to affect the swelling and rheological properties of the nanocomposite polymers. Particularly, the yield strain (from 25% to 130%), modulus (from 17,500 to 25,000 Pa), and brittleness of nanoplates based nanocomposite increased more significantly. Finite‐difference time‐domain simulations demonstrated that nanoplates increased the wavelength of the absorption maxima (224 nm for NS to 240 nm for NP) and charge distribution. The results obtained in this research indicate that the nanofiller shape markedly influences the rheological properties of the nanocomposite polymers, opening the door to further research focused on polymer–nanofiller interactions, and their effect on the macroscopic properties of the nanocomposites.

Degree reduction of ball Said‐Ball surfaces using an enhanced coot optimization algorithm

Degree reduction of ball Said‐Ball (BSB) surface is a complex and unsolved problem in computer‐aided design (CAD) and computer graphics (CG), which has potential application prospects in many engineering fields of geometric modeling. In this paper, the degree reduction of BSB surface is transformed into the optimization problems of center surface and radius function, and the improved coot optimization algorithm is used to solve it. An effective method to solve the degree reduction of BSB surface by intelligent optimization algorithm is proposed. Firstly, the degree reduction of BSB surface is decomposed into center surface reduction and radius function reduction, and the objective function and constraint conditions are determined according to the optimization idea, then the degree reduction optimization model of center surface and radius function is established. Secondly, an enhanced coot (ECOOT for short) algorithm is proposed, which combines chain strategy, dispersed foraging strategy, and quadratic interpolation strategy. Compared with the original algorithm, ECOOT algorithm has better convergence performance and higher calculation accuracy. Finally, the proposed ECOOT algorithm is used to solve the degree reduction optimization model, and the optimal center surface and minimum distance radius function of the BSB surface after degree reduction are obtained. The experimental results show that the ECOOT algorithm can effectively solve the problem of degree reduction for BSB surface, the degree reduction error is reduced by about 20% compared to the original COOT algorithm, and is superior to other intelligent optimization algorithms in accuracy, robustness, and convergence.

Dissipativity-Based Event-Triggered Sliding Mode Control of Discrete-Time 2-D Systems

This paper focuses on dissipativity analysis and dissipativity-based sliding mode control (SMC) of discrete-time two-dimensional (2-D) systems described by Roesser model. First, dissipativity is introduced for 2-D systems. Aimed at the characteristics of Roesser model, the horizontal and vertical sliding surface functions are constructed for the addressed 2-D systems, respectively. Then sufficient conditions are proposed to guarantee the asymptotic stability and the pre-specified dissipativity for the resultant reduced-order 2-D sliding mode dynamics. Next, the SMC law is developed such that the system trajectories are driven into the quasi-sliding mode band in a finite region and maintained there all the time. In order to achieve a better resource utilisation, the event-triggered strategy is further incorporated in the design of SMC law. The event-triggered rule is also established to implement the event-triggered SMC scheme for 2-D systems. In the meantime, the corresponding quasi-sliding mode band is obtained. Finally, one verification example is given to show the effectiveness of the proposed SMC design method.

Activated hydrochar derived from coconut shell and microalgae through hydrothermal carbonization for the CO2 adsorption

Activated carbon (AC) has proven to be an effective adsorbent for gas and liquid. However, the production of AC involves high energy consumption and the use of limited non-renewable resources as feedstock. In this study, activated carbon was synthesized through hydrothermal carbonization (HTC) at a low temperature using coconut shells and microalgae. The adsorbents were characterised by Fourier Transform Infrared Spectroscopy (FTIR) to determine the surface function. The results indicate that the coconut shell activated carbon (CSAC) precursor had a higher yield compared to microalgae-based activated carbon (MAAC). However, the carbon dioxide (CO2) uptake of MAAC at 1.0 bar is 115.4% higher. A combination of algae and coconut shells as feedstock resulted in competitive activated carbon compared to MAAC (7.74 wt% instead of 8.28 wt%). The results of this study suggest that waste biomass hydrochars could be considered as low-cost adsorbents for carbon dioxide removal and that this would be useful in environmental applications for post-combustion carbon capture.

Generalized Abel equations and applications to translation invariant Radon transforms

Abstract Generalized Abel equations have been employed in the recent literature to invert Radon transforms which arise in a number of important imaging applications, including Compton Scatter Tomography (CST), Ultrasound Reflection Tomography (URT), and X-ray CT. In this paper, we present novel injectivity results and inversion methods for generalized Abel operators. We apply our theory to a new Radon transform, R j \mathcal{R}_{j} , of interest in URT, which integrates a square integrable function of compact support, 𝑓, over ellipsoid and hyperboloid surfaces with centers on a plane. Using our newly established theory on generalized Abel equations, we show that R j \mathcal{R}_{j} is injective and provide an inversion method based on Neumann series. In addition, using algebraic methods, we present image phantom reconstructions from R j ⁢ f \mathcal{R}_{j}f data with added pseudo-random noise.

Influence of basalt fiber on performance of thin overlayer asphalt mixtures based on multiple experimental methods

Because of the fast deterioration speed of the surface function of conventional asphalt pavement, thin overlayer with many advantages has been applied to the pavement surface. However, due to problems such as insufficient stripping resistance and cracking resistance, the performance of the thin overlayer needs to be further improved. To achieve this target, basalt fiber was introduced into two types of thin overlayer asphalt mixtures (Open graded friction course, OGFC-5, and Stone matrix asphalt mixture, SMA-5). The wheel tracking test and uniaxial penetration test for high temperature deformation resistance, low temperature bending beam test and indirect tensile asphalt (IDEAL) cracking test for cracking resistance, cantabro test for stripping resistance, and friction coefficient test for skid resistance were conducted to evaluate various performance of thin overlayer asphalt mixtures, along with the dynamic modulus test for dynamic mechanical response. The results showed that adding basalt fiber could enhance the high temperature deformation resistance, low temperature cracking resistance, intermediate temperature cracking resistance and stripping resistance of the thin overlayer, while having no significant impact on skid resistance. Furthermore, adding basalt fiber could increase the modulus in the high temperature region and decrease the modulus in the low temperature region of the thin overlayer asphalt mixtures, indicating thin overlayer with basalt fiber presenting superior both high temperature and low temperature performance. In addition, the evaluation indexes of SLT and SHT proposed from dynamic modulus test exhibited good consistency with the results of the performance tests.

Formula omitted]-[formula omitted] junction from localized doping of metal-WSe2 contact with N2H4, NH4 and BF4 molecules: A first-principles investigation

Using the density-functional theory, we investigate the possibility of obtaining a p–n junction in transition metal–semiconductor junctions. The systems consist in metal surfaces, M = Ti(0001), Co(0001), Pd(111) or Pt(111) in proximity to the semiconductor WSe2 monolayer. The latter is doped with hydrazine (N2H4), ammonium (NH4), or tetrafuoroborate (BF4). We determine for the M-WSe2 systems the binding energy, work function of metal surfaces, the Schottky barrier energy with and without molecular doping and the spin polarization. Results show a strong binding between the metal and WSe2 which implies a stable M-WSe2 contacts. The Spin-polarization in Ti-WSe2 (35%), Co-WSe2 (37,5%), Pd-WSe2 (13%) and Pt-WSe2 (-0.2%) suggest a significant metal-to-WSe2 spin injection in M-WSe2. Localization of hydrazine or ammonium on the WSe2 in M-WSe2 (M = Pd, Pt) changes its conductivity from p to n-type. The strong binding, the finite spin-injection, the change in conductivity and the reduction in Shottky barrier, raise the potential for a molecule-based p–n junction in metal-WSe2 field-effect transistor.

Cross-species epigenetic regulation of nucleus accumbens KCNN3 transcripts by excessive ethanol drinking

The underlying genetic and epigenetic mechanisms driving functional adaptations in neuronal excitability and excessive alcohol intake are poorly understood. Small-conductance Ca2+-activated K+ (KCa2 or SK) channels encoded by the KCNN family of genes have emerged from preclinical studies as a key contributor to alcohol-induced functional neuroadaptations in alcohol-drinking monkeys and alcohol-dependent mice. Here, this cross-species analysis focused on KCNN3 DNA methylation, gene expression, and single nucleotide polymorphisms, including alternative promoters in KCNN3, that could influence surface trafficking and function of KCa2 channels. Bisulfite sequencing analysis of the nucleus accumbens tissue from alcohol-drinking monkeys and alcohol-dependent mice revealed a differentially methylated region in exon 1A of KCNN3 that overlaps with a predicted promoter sequence. The hypermethylation of KCNN3 in the accumbens paralleled an increase in the expression of alternative transcripts that encode apamin-insensitive and dominant-negative KCa2 channel isoforms. A polymorphic repeat in macaque KCNN3 encoded by exon 1 did not correlate with alcohol drinking. At the protein level, KCa2.3 channel expression in the accumbens was significantly reduced in very heavy-drinking monkeys. Together, our cross-species findings on epigenetic dysregulation of KCNN3 represent a complex mechanism that utilizes alternative promoters to potentially impact the firing of accumbens neurons. Thus, these results provide support for hypermethylation of KCNN3 as a possible key molecular mechanism underlying harmful alcohol intake and alcohol use disorder.

Study of long‐term skid and wear resistance of waterborne epoxy resin‐SBRcompound modified emulsified asphalt microsurfacing

AbstractAs an eco‐friendly technology for pavement preventive maintenance, microsurfacing (MS) has the potential properties of cost‐saving and excellent performance benefits in repairing distress. MS also improves the surface function, especially skid resistance, of old pavements that have gradually decayed under the coupled effects of long‐term environment and loads. Reasonable assessments of the long‐term skid and wear resistance of the MS can provide support for accurate decision‐making on preventive maintenance, which in turn reduces maintenance costs and saves maintenance costs, and ensures traffic safety. To evaluate the long‐term skid and wear resistance of MS in different natural and traffic environments, this paper investigated the change of British pendulum number (BPN), rutting depth, and mass loss rate of waterborne epoxy resin‐SBR compound emulsified asphalt micro‐surfacing (WER‐SBR MEAMS) under different environmental factors and traffic conditions based on the self‐developed accelerated loading abrasion instrument. The factors considered in the experiment include temperature, rainfall, UV radiation, speed, and load. The results showed that temperature and vehicle speed had a detrimental effect on the durability of WER‐SBR MEAMS, which was more pronounced after 10,000 wear loading cycles. Reducing immersion time and slowing down the aging rate can improve the durability of WER‐SBR MEAMS. Further, the influence degrees of different factors on the skid and wear resistance of MS were evaluated using the gray correlation method. From the results of the gray correlation analysis, the correlation coefficients between external variables and BPN, rutting depth, and mass loss rate are all greater than 0.8, which indicate that all the variables involved have relatively obvious and regular effects on the skid and wear resistance of WER‐SBR MEAMS.

Surface wrinkling and functionalization of organic coatings via diffusion of reactive molecules

Unique pattern morphologies created by surface instability are a versatile platform for controlling surface functionality. In this work, simultaneous surface wrinkling and hydrophobization of organic coatings by directly reacting with diffused propyl trichlorosilane (PTCS) from gas phase was demonstrated. By varying the initial coating type, various surface morphologies were obtained, showing different interactions with water droplets, demonstrating the high tunability of the method to achieve important surface functions, including rose petal and lotus effects. It was found that reaction between the absorbed water in the coating caused the hydrolysis of PTCS and their subsequent self-condensation to form siloxanes within the coating, which contributed to the large volume expansion and eventually triggered the wrinkling process. This method is independent of the substrate type and offers a great advantage in producing functional coatings using eco-friendly, VOC-free solutions.

The influence of large-diameter multifocal contact lens on ocular surface, visual quality, and visual function for presbyopic adults with dry eye syndromes

This study investigated the influence of large-diameter multifocal contact lenses on the ocular surface, visual quality, and visual function for presbyopic adults with dry eye syndromes. The study enrolled 40–55-year-old adults with presbyopia and dry eye syndromes (DES). The subjects were randomly assigned to three groups wearing different designs of contact lenses (Proclear, SMR, and Optimum) for 6–8 h a day for two weeks. Ocular surface health, tear quality, visual quality, and visual function were measured before and after lens wear. No significant difference was observed across all three groups for the amount of conjunctival redness, blink frequency (lens on), and stereopsis vision before and after wearing. Although there seemed to be a significant declining trend for corneal staining and limbal redness, non-invasive tear break-up time (TBUT), and lipid layer thickness while lens wear, the measured values were all within the normal range. Vice-versa after lens removal, results also showed significant improvement on lipid layer thickness, blink frequency (lens off), and contact TBUT. A significant improvement was observed in the modulation transfer function (MTF) of the total area ratio after wearing contact lenses. In contrast, the MTF of the high-order aberration area ratio resulting from lens wear was lower than that of the baseline measurement. There are also significant improvements observed for SMR and Optimum regarding near visual acuity, near point of accommodation, and the subjective questionnaire (OSDI and VBP) scores. Although it is difficult to avoid a specific negative impact on the ocular surface and tear film, visual function and visual quality can still be positively improved, especially shown on larger diameter and distance-center designed multifocal contact lenses.

Characterization of the Maximum Height of a Surface Texture.

Average surface height and maximum amplitude can affect surface functions. In the industry, these parameters can be obtained based on profile measurements. However, variability in maximum profile height is high. A more stable parameter can be obtained from the results of the areal surface topography measurements as the average value of the parallel profiles. The aim of this study is to establish this parameter directly from the result of the areal surface texture by correcting the maximum surface height to material ratios in the range of 0.13-99.87%. This method was tested by measuring 100 surface topographies with a stylus profilometer and a white light interferometer. It can be utilized correctly for deterministic textures and random one- and two-process surfaces for which the correlation between neighboring profile ordinates is not very high. In other cases, the method should be modified. Employing this method, the maximum profile amplitude Pt and parameters characterizing the average profile height Pq, Pa, and the ratios Pq/Pa and Pp/Pt describing the shape of the profile ordinate distribution can be correctly estimated. Pq/Pa and Pp/Pt were more stable than the kurtosis Pku and skewness Psk. The corrected maximum height S±3σ can be adopted as a parameter that characterizes the areal surface texture as more stable than the maximum surface height St. Pq/Pa and Pp/Pt were more steady than kurtosis Pku and skewness Psk.

Seismic reliability analysis of slope in spatially variable soils using multiple response surfaces

PurposeThis paper aims to develop an efficient algorithm combining straightforward response surface functions with Monte Carlo simulation to conduct seismic reliability analysis in a systematical way.Design/methodology/approachThe representative slip surfaces are identified and based on to calibrate multiple response surface functions with acceptable accuracy. The calibrated response surfaces are used to determine the yield acceleration in Newmark sliding displacement analysis. Then, the displacement-based limit state function is adopted to conduct seismic reliability analysis.FindingsThe calibrated response surface functions have fairly good accuracy in predicting the yield acceleration in Newmark sliding displacement analysis. The seismic reliability is influenced by such factors as PGA, spatial variability and threshold value. The proposed methodology serves as an effective tool for geotechnical practitioners.Originality/valueThe multiple sources of a seismic slope response can be effectively determined using the multiple response surface functions, which are easily implemented within geotechnical engineering.

Efficacy of diquafosol sodium combined with M22 optimized pulsed light in the treatment of dry eye due to meibomian gland dysfunction

Purpose: To determine the efficacy and safety of 3 % diquafosol sodium combined with M22 optimized pulse light (OPT) in the treatment of dry eye due to meibomian gland dysfunction (MGD).
 Methods: Data from 97 dry eye patients admitted to Shantou Balder Eye Hospital with MGD-induced dry eye illness between August 2019 and June 2021 were retrospectively reviewed and analyzed. Patients meeting MGD diagnostic criteria in ophthalmology and exhibiting MGD-induced dry eye signs were split into two groups. The medication group (43 cases) received 3 % diquafosol sodium eye drops six times a day for three months, while the pulsed light group (44 cases) underwent three M22 OPT sessions at one-month intervals. Treatment efficacy of the two methods were compared by assessing changes in ocular surface, symptom severity, inflammatory factors (hs-CRP, IL-8, IL-1β), and quality of life before and three months after treatment commenced. Adverse reactions were also recorded.
 Results: Pulsed light group showed a slightly higher (but not significant) total effective rate (95.45 %) than the medication group (93.02 %; p > 0.05). Three months post-treatment, both groups exhibited significant improvements in various indicators such as FL, OSDI, symptom scores, tear biomarker levels, and overall eye health (p < 0.05). The incidence of adverse reactions was similar between the medication (4.65 %) and pulsed light (9.09 %) groups.
 Conclusion: Treatment with 3 % diquafosol sodium and M22 OPT for MGD-induced dry eye yields comparable efficacy and safety, improving symptoms, ocular surface function, reducing inflammation, and enhancing quality of life. However, 3 % diquafosol sodium shows better patient tolerance and fewer adverse reactions, but further research is needed due to the limited number of patients in this study.

Glycoengineered keratinocyte library reveals essential functions of specific glycans for all stages of HSV-1 infection

Viral and host glycans represent an understudied aspect of host-pathogen interactions, despite potential implications for treatment of viral infections. This is due to lack of easily accessible tools for analyzing glycan function in a meaningful context. Here we generate a glycoengineered keratinocyte library delineating human glycosylation pathways to uncover roles of specific glycans at different stages of herpes simplex virus type 1 (HSV-1) infectious cycle. We show the importance of cellular glycosaminoglycans and glycosphingolipids for HSV-1 attachment, N-glycans for entry and spread, and O-glycans for propagation. While altered virion surface structures have minimal effects on the early interactions with wild type cells, mutation of specific O-glycosylation sites affects glycoprotein surface expression and function. In conclusion, the data demonstrates the importance of specific glycans in a clinically relevant human model of HSV-1 infection and highlights the utility of genetic engineering to elucidate the roles of specific viral and cellular carbohydrate structures.

Synthetic Evolution of a Supramolecular Harpooning Mechanism to Immobilize Vesicles at Antifouling Interfaces

AbstractThe immobilization of vesicles has been conceptualized as a method to functionalize biointerfaces. However, the preservation of their integrity post immobilization remains a considerable challenge. Interfacial interactions can cause vesicle rupture upon close surface contact and non‐specific protein adsorption impairing surface functions. To date, immobilization of vesicles has relied solely on either entrapment or prior modification of vesicles, both of which require laborious preparation and limit their applications. This work develops a bioinspired strategy to pin vesicles without prior modification while preserving their intact shape. This work introduces antifouling diblock copolymers and ultrathin surface‐attached hydrogels containing a brush‐like interface consisting of a bottle brush copolymer of N‐(2‐hydroxypropyl) methacrylamide (HPMA) and N‐(3‐methacrylamidopropyl)‐N,N‐dimethyldodecan‐1‐aminiumiodide (C12+). The presence of positive charges generates an attractive force that pulls vesicles toward the surface. At the surface, the amphiphilic properties of the combs facilitate their insertion into the membrane, mimicking the harpooning mechanism observed in antimicrobial peptides. Importantly, the antifouling poly(HPMA) backdrop serves to safeguard the vesicles by preventing deformation and breakage. Using a combination of thermodynamic analysis, surface plasmon resonance, and confocal laser scanning microscopy, this work demonstrates the efficiency of this biomimetic system to capture vesicles while maintaining an antifouling interface necessary for bioapplications.