Volatile organic compound vapor detection with responsive microgel-based etalons

Zhang, Yingnan; Carvalho, Wildemar S.P.; Fang, Changhao; Serpe, Michael J.

doi:10.1016/j.snb.2019.03.147

Cited by 19 publications

(15 citation statements)

References 27 publications

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“…Glass is not an exclusively planar substrate, and substantial work has been dedicated to microgel-coated glass fibers to PNIPAm BSA Bioadhesion [67] PNIPAm and PEG Bioadhesion [45] PSS PDMAEMA PDDA Fundamental characterization [65] P(NIPAm-co-AA) Fundamental characterization [57] P(NIPAm-co-AA) PAH Fundamental characterization [201] PVA Alginate FGF Biomedical [163] PVDF P(AA-co-BA) Separations [101] PNIPAm Separations [205] P(NIPAm-co-AA) Separations [3] P4VP core PNIPAm shell Separations [72] Other Cotton P(NIPAm-co-AA) Separations [76] P(NIPAm-co-chitosan) Bioadhesion [102] PVCL Controlled release [19] Gold PNIPAm Fundamental characterization [89] PNIPAm AuNPs Sensing [9] PNIPAm Sensing [61] PNIPAm Sensing [108] P(NIPAm-co-APMAH) Sensing [43] P(NIPAm-co-APMAH) Sensing [106] P(NIPAm-co-APMAH) Sensing [107] P(NIPAm-co-AA) Sensing [11] P(NIPAm-co-AA) Sensing [33] P(NIPAm-co-AA) Sensing [41] P(NIPAm-co-AA) Sensing [62] P(NIPAm-co-AA) Sensing [110] P(NIPAm-co-AA) AuNPs, PDADMAC Fundamental characterization [150] P(NIPAm-co-AA) Ferrocene Sensing [12] P(NIPAm-co-AA) Phenyl boronic acid Sensing [88] P(NIPAm-co-AA) Phenyl boronic acid Sensing [90] P(NIPAm-co-AA) CV Controlled Release [147] P(NIPAm-co-GEMA) Sensing [10] P(Am-co-GMA) Phenyl boronic acid Sensing [13] P(NIPAm-co-4VP) Sensing [53] Graphite P(NIPAm-co-AA) carbon nanotubes Sensing [221] P(NIPAm-co-DMAPMA) butyrylcholinesterase Sensing [64] P(NIPAm-co-DMAPMA) choline oxidase Sensing [109]…”

Section: Silica and Silicone Substratesmentioning

confidence: 99%

“…Adjusting the microgel chemistry allowed triggering reversible swelling events using a variety of stimuli such as temperature, [105] pH, [41] ionic strength, [33] and light frequency, [9] as well as specific organic or biological species. [11,12,[106][107][108] The conductive properties of graphitic substrates have also been leveraged for amperometric detection of oxidoreductive events near the electrode interface. [62,109,110] For instance, Sigolaeva et al coated a MnO-treated electrode with poly(NIPAm-co-dimethylamino propyl methacrylate) microgels modified with choline oxidase.…”

Section: Sensing Surfacesmentioning

confidence: 99%

“…For example, Zhang et al developed a colorimetric system for detecting THF vapor using PNIPAm microgels placed between gold films; as THF triggered the gel deswelling, the reduced inter-film spacing translated in a color shift on the sensor from purple to green. [108]…”

Section: Thermo-responsive Monomersmentioning

confidence: 99%

See 2 more Smart Citations

Surface‐Bound Microgels for Separation, Sensing, and Biomedical Applications

Cutright

Harris

Ramesh

et al. 2021

Adv Funct Materials

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This study presents a comprehensive survey of microgel-coated materials and their functional behavior, describing the complex interplay between the physicochemical and mechanical properties of the microgels and the chemical and morphological features of substrates. The cited literature is articulated in four main sections: i) properties of 2D and 3D substrates, ii) synthesis, modification, and characterization of the microgels, iii) deposition techniques and surface patterning, and iv) application of microgel-coated surfaces focusing on separations, sensing, and biomedical applications. Each section discussesby way of principles and examples -how the various design parameters work in concert to deliver functionality to the composite systems. The case studies presented herein are viewed through a multi-scale lens. At the molecular level, the surface chemistry and the monomer make-up of the microgels endow responsiveness to environmental and artificial physical and chemical cues. At the micro-scale, the response effects shifts in size, mechanical, and optical properties, and affinity towards species in the surrounding liquid medium, ranging from small molecules to cells. These phenomena culminate at the macro-scale in measurable, reversible, and reproducible effects, aiming in a myriad of directions, from lab-scale to industrial applications.

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Section: Silica and Silicone Substratesmentioning

confidence: 99%

Section: Sensing Surfacesmentioning

confidence: 99%

See 1 more Smart Citation

Surface‐Bound Microgels for Separation, Sensing, and Biomedical Applications

Cutright

Harris

Ramesh

et al. 2021

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

“…[ 50–54 ] However, the co‐nonsolvency effect was exploited across many disciplines of science. For example, it was used in surface engineering and for the capture and release of nanoparticles, [ 21,22 ] for the selective precipitation of DNA, [ 55 ] for tunable polymer matrices, [ 56 ] for the detection of volatile organic solvents, [ 57 ] and for other applications. [ 58,59 ]…”

Section: Concept Of Ternary Polymer Nanoswitchesmentioning

confidence: 99%

Ternary Nanoswitches Realized with Multiresponsive PMMA‐b‐PNIPMAM Films in Mixed Water/Acetone Vapor Atmospheres

et al. 2021

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To systematically add functionality to nanoscale polymer switches, an understanding of their responsive behavior is crucial. Herein, solvent vapor stimuli are applied to thin films of a diblock copolymer consisting of a short poly(methyl methacrylate) (PMMA) block and a long poly(N‐isopropylmethacrylamide) (PNIPMAM) block for realizing ternary nanoswitches. Three significantly distinct film states are successfully implemented by the combination of amphiphilicity and co‐nonsolvency effect. The exposure of the thin films to nitrogen, pure water vapor, and mixed water/acetone (90 vol%/10 vol%) vapor switches the films from a dried to a hydrated (solvated and swollen) and a water/acetone‐exchanged (solvated and contracted) equilibrium state. These three states have distinctly different film thicknesses and solvent contents, which act as switch positions “off,” “on,” and “standby.” For understanding the switching process, time‐of‐flight neutron reflectometry (ToF‐NR) and spectral reflectance (SR) studies of the swelling and dehydration process are complemented by information on the local solvation of functional groups probed with Fourier‐transform infrared (FTIR) spectroscopy. An accelerated responsive behavior beyond a minimum hydration/solvation level is attributed to the fast build‐up and depletion of the hydration shell of PNIPMAM, caused by its hydrophobic moieties promoting a cooperative hydration character.

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“…Such surface coatings might be suitable actuating units in, e.g. etalons [108] giving rise to a linear piezo-like response. Related to this, it is of course interesting to study adsorbed core-shell microgels with respect to their mechanical properties and changes.…”

Section: Core-shell Microgels At Surfaces and Interfacesmentioning

confidence: 99%

Recent advances in stimuli-responsive core-shell microgel particles: synthesis, characterisation, and applications

Oberdisse

Hellweg

2020

Colloid Polym Sci

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Inspired by the path followed by Matthias Ballauff over the past 20 years, the development of thermosensitive core-shell microgel structures is reviewed. Different chemical structures, from hard nanoparticle cores to double stimuli-responsive microgels have been devised and successfully implemented by many different groups. Some of the rich variety of these systems is presented, as well as some recent progress in structural analysis of such microstructures by small-angle scattering of neutrons or X-rays, including modelling approaches. In the last part, again following early work by the group of Matthias Ballauff, applications with particular emphasis on incorporation of catalytic nanoparticles inside core-shell structures-stabilising the nanoparticles and granting external control over activity-will be discussed, as well as core-shell microgels at interfaces.

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Volatile organic compound vapor detection with responsive microgel-based etalons

Cited by 19 publications

References 27 publications

Surface‐Bound Microgels for Separation, Sensing, and Biomedical Applications

Surface‐Bound Microgels for Separation, Sensing, and Biomedical Applications

Ternary Nanoswitches Realized with Multiresponsive PMMA‐b‐PNIPMAM Films in Mixed Water/Acetone Vapor Atmospheres

Recent advances in stimuli-responsive core-shell microgel particles: synthesis, characterisation, and applications

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