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Customizing Colloids for Programmabl...

Liu, Mingzhu.

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Customizing Colloids for Programmable Assembly.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Customizing Colloids for Programmable Assembly./
作者:	Liu, Mingzhu.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	165 p.
附註:	Source: Dissertations Abstracts International, Volume: 82-09, Section: B.
Contained By:	Dissertations Abstracts International82-09B.
標題:	Chemistry. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28031396
ISBN:	9798582575795

Customizing Colloids for Programmable Assembly.
Liu, Mingzhu.

Customizing Colloids for Programmable Assembly. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 165 p.

Source: Dissertations Abstracts International, Volume: 82-09, Section: B.

Thesis (Ph.D.)--New York University, 2021.

This item must not be sold to any third party vendors.

Colloidal microparticles have been broadly studied as theoretical models of atoms and for practical applications including food science, biomedical delivery, cosmetics and more. The self-assembly of microparticles has long been envisioned as a feasible pathway to fabricate superstructures with desired physical properties via bottom-up design. However, it remains challenging to engineer colloidal building units that contain encoded information to controllably guide the self-assembly process and generate predefined structures in a programmable fashion. Such information may include the shape or morphology of colloidal particles, material composition, the chemical patterns on the particle surface, and particle responsiveness to external stimuli. The objective of this dissertation is to develop new synthetic strategies for bulk production of colloidal particles encoded with customizable information which can thereafter be used as building blocks for programmable assembly. Chapter 2 describes a method to fabricate multi-component colloids with tailorable morphology and surface chemical pattern through sequential seeded growth. These colloidal clusters are then used to construct patchy particles with independently modifiable patches. Chapter 3 and 4 demonstrates colloidal particles the exhibit stimuli-responsive morphology. In chapter 3, various anisotropic colloids of concave-convex, plano-convex, and convex-convex morphologies are synthesized using easily accessible colloidal spheres as starting materials in a binary solvent mixture. The shape of those particles can be switched between distinct ones following the same protocol. Within chapter 4, particles of hybrid materials and tunable cavities are synthesized taking advantage of the different swelling behavior of different materials. These particles reconfigure their shapes between concave and convex upon solvent change. A thermo-responsive solvent system is then used to swell the concave patches and induces assembly of various colloidal superstructures through site-specific interactions. In chapter 5, the bi-physic convex particles described in chapter 4 are used to study the tunable assembly of colloidal particles, generating various colloidal 2D superstructures. The strength of depletion interactions between polymeric spherical particles can be regulated strong or weak according to the particle's material composition and depletion conditions. This concept is then applied to direct the assembly of hybrid triblock particles made from two distinct polymeric materials. Under different depletion conditions, those particles are assembled through pole-to-pole or center-to-center dominant interactions, resulting in colloidal superstructures of vast diversity. These methods demonstrate that precise engineering of the shape, surface chemistry, material composition, and reconfigurability of building blocks provides a feasible pathway towards programmable assembly. Lastly, Chapter 6 discusses the potential for further development of those methods to construct and harvest colloidal particles, superstructures, and crystals exhibiting desirable properties. The progress toward feasible strategies to customize and assemble colloids discussed in this thesis will inform the construction of both static complex superstructures with unique photonic properties and dynamic materials with reconfigurability.

ISBN: 9798582575795Subjects--Topical Terms:

516420
Chemistry.
Subjects--Index Terms:

Chiral colloids

Customizing Colloids for Programmable Assembly.
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300 $a 165 p.
500 $a Source: Dissertations Abstracts International, Volume: 82-09, Section: B.
500 $a Advisor: Weck, Marcus.
502 $a Thesis (Ph.D.)--New York University, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Colloidal microparticles have been broadly studied as theoretical models of atoms and for practical applications including food science, biomedical delivery, cosmetics and more. The self-assembly of microparticles has long been envisioned as a feasible pathway to fabricate superstructures with desired physical properties via bottom-up design. However, it remains challenging to engineer colloidal building units that contain encoded information to controllably guide the self-assembly process and generate predefined structures in a programmable fashion. Such information may include the shape or morphology of colloidal particles, material composition, the chemical patterns on the particle surface, and particle responsiveness to external stimuli. The objective of this dissertation is to develop new synthetic strategies for bulk production of colloidal particles encoded with customizable information which can thereafter be used as building blocks for programmable assembly. Chapter 2 describes a method to fabricate multi-component colloids with tailorable morphology and surface chemical pattern through sequential seeded growth. These colloidal clusters are then used to construct patchy particles with independently modifiable patches. Chapter 3 and 4 demonstrates colloidal particles the exhibit stimuli-responsive morphology. In chapter 3, various anisotropic colloids of concave-convex, plano-convex, and convex-convex morphologies are synthesized using easily accessible colloidal spheres as starting materials in a binary solvent mixture. The shape of those particles can be switched between distinct ones following the same protocol. Within chapter 4, particles of hybrid materials and tunable cavities are synthesized taking advantage of the different swelling behavior of different materials. These particles reconfigure their shapes between concave and convex upon solvent change. A thermo-responsive solvent system is then used to swell the concave patches and induces assembly of various colloidal superstructures through site-specific interactions. In chapter 5, the bi-physic convex particles described in chapter 4 are used to study the tunable assembly of colloidal particles, generating various colloidal 2D superstructures. The strength of depletion interactions between polymeric spherical particles can be regulated strong or weak according to the particle's material composition and depletion conditions. This concept is then applied to direct the assembly of hybrid triblock particles made from two distinct polymeric materials. Under different depletion conditions, those particles are assembled through pole-to-pole or center-to-center dominant interactions, resulting in colloidal superstructures of vast diversity. These methods demonstrate that precise engineering of the shape, surface chemistry, material composition, and reconfigurability of building blocks provides a feasible pathway towards programmable assembly. Lastly, Chapter 6 discusses the potential for further development of those methods to construct and harvest colloidal particles, superstructures, and crystals exhibiting desirable properties. The progress toward feasible strategies to customize and assemble colloids discussed in this thesis will inform the construction of both static complex superstructures with unique photonic properties and dynamic materials with reconfigurability.
590 $a School code: 0146.
650 4 $a Chemistry. $3 516420
650 4 $a Physical chemistry. $3 1981412
650 4 $a Materials science. $3 543314
653 $a Chiral colloids
653 $a Colloidal crystals
653 $a Colloids
653 $a Regioselective depletion
653 $a Self-assembly
653 $a Shape-shifting
653 $a Programmable assembly
690 $a 0485
690 $a 0494
690 $a 0794
710 2 $a New York University. $b Chemistry. $3 1064483
773 0 $t Dissertations Abstracts International $g 82-09B.
790 $a 0146
791 $a Ph.D.
792 $a 2021
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28031396