Controlling the morphology of microgels by ionic stimuli

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Controlling the morphology of microgels by ionic stimuli. / Bergman, Maxime J.; Pedersen, Jan S.; Schurtenberger, Peter; Boon, Niels.

In: Soft Matter, Vol. 16, No. 11, 2020, p. 2786-2794.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

Author

Bergman, Maxime J. ; Pedersen, Jan S. ; Schurtenberger, Peter ; Boon, Niels. / Controlling the morphology of microgels by ionic stimuli. In: Soft Matter. 2020 ; Vol. 16, No. 11. pp. 2786-2794.

Bibtex

@article{bd7b4c3b17234ff790a4922790ead4a4,

title = "Controlling the morphology of microgels by ionic stimuli",

abstract = "Stimuli-responsive microgels have attracted much interest for their use as vehicles for drug delivery or as the building blocks of adaptive materials. Ionic microgel particles, including popular poly(NIPAM-co-acrylic acid), show strong mechanical responsiveness to many external stimuli, including changes in ionic strength or acidity. In this work, we demonstrate that combining multiple ionic stimuli can enable detailed control over the morphology of microgels. To this extent, we analyze the particle morphology in various surroundings with light-scattering techniques. First, we find strong indications of an inverted density profile in the core of the particles. Secondly, we show that the swelling of this hydrogel core and the corona of dangling polymer ends can be targeted separately by a combination of deionization and deprotonation steps. Hence, this work represents an advance in tailoring particle morphologies after synthesis in a predictable fashion.",

author = "Bergman, {Maxime J.} and Pedersen, {Jan S.} and Peter Schurtenberger and Niels Boon",

year = "2020",

doi = "10.1039/c9sm02170a",

language = "English",

volume = "16",

pages = "2786--2794",

journal = "Soft Matter",

issn = "1744-683X",

publisher = "Royal Society of Chemistry",

number = "11",

}

RIS

TY - JOUR

T1 - Controlling the morphology of microgels by ionic stimuli

AU - Bergman, Maxime J.

AU - Pedersen, Jan S.

AU - Schurtenberger, Peter

AU - Boon, Niels

PY - 2020

Y1 - 2020

N2 - Stimuli-responsive microgels have attracted much interest for their use as vehicles for drug delivery or as the building blocks of adaptive materials. Ionic microgel particles, including popular poly(NIPAM-co-acrylic acid), show strong mechanical responsiveness to many external stimuli, including changes in ionic strength or acidity. In this work, we demonstrate that combining multiple ionic stimuli can enable detailed control over the morphology of microgels. To this extent, we analyze the particle morphology in various surroundings with light-scattering techniques. First, we find strong indications of an inverted density profile in the core of the particles. Secondly, we show that the swelling of this hydrogel core and the corona of dangling polymer ends can be targeted separately by a combination of deionization and deprotonation steps. Hence, this work represents an advance in tailoring particle morphologies after synthesis in a predictable fashion.

AB - Stimuli-responsive microgels have attracted much interest for their use as vehicles for drug delivery or as the building blocks of adaptive materials. Ionic microgel particles, including popular poly(NIPAM-co-acrylic acid), show strong mechanical responsiveness to many external stimuli, including changes in ionic strength or acidity. In this work, we demonstrate that combining multiple ionic stimuli can enable detailed control over the morphology of microgels. To this extent, we analyze the particle morphology in various surroundings with light-scattering techniques. First, we find strong indications of an inverted density profile in the core of the particles. Secondly, we show that the swelling of this hydrogel core and the corona of dangling polymer ends can be targeted separately by a combination of deionization and deprotonation steps. Hence, this work represents an advance in tailoring particle morphologies after synthesis in a predictable fashion.

UR - http://www.scopus.com/inward/record.url?scp=85082098449&partnerID=8YFLogxK

U2 - 10.1039/c9sm02170a

DO - 10.1039/c9sm02170a

M3 - Journal article

C2 - 32104825

AN - SCOPUS:85082098449

VL - 16

SP - 2786

EP - 2794

JO - Soft Matter

JF - Soft Matter

SN - 1744-683X

IS - 11

ER -