相关实验视频
Updated: Aug 17, 2026
15:06
Synthesis of an Intein-mediated Artificial Protein Hydrogel
Published on: January 27, 2014
12.2K
通过侧链设计,定制星块共聚类的可写性和性能
Ronnie V Garcia1,2,3, Elizabeth A Murphy1,2, Nairiti J Sinha1,2,4
1Department of Chemistry & Biochemistry, University of California, Santa Barbara, Santa Barbara, CA, 93106, USA.
Small (Weinheim an der Bergstrasse, Germany)
|July 10, 2023
概括
块共聚酸水凝为3D打印提供了快速的自我恢复. 非规范性氨基酸可以创建更稳定的网络,增强可打印性和机械性能,消除了对添加剂的需求.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 聚合物化学 聚合物化学
背景情况:
- 剪切可回收的水凝对于先进的3D打印至关重要.
- 区块共聚为生物材料应用提供可调节的特性.
研究的目的:
- 为了合成和表征新的三臂星形块共聚.
- 为了研究3D打印应用的结构-属性关系.
- 探索非正规氨基酸在水凝设计中的使用.
主要方法:
- 合成具有不同侧链和块长度的块共聚.
- 使用散射和学技术进行表征.
- 使用直接墨水写作的可打印性评估.
主要成果:
- 准备了各种微观结构和机械性质的水凝.
- 可打印性与材料化学有很强的相关性.
- 非正规的基于基氨酸的块形成了具有优越性质的更稳定的网络.
结论:
- 块共聚的设计允许可调节的材料特性用于基于挤出的3D打印.
- 非正规氨基酸增强水凝的稳定性和性能.
- 这些材料提供无添加剂的3D打印解决方案.
相关概念视频
02:40Chromosome Structure
A functional eukaryotic chromosome must contain three elements: a centromere, telomeres, and numerous origins of replication.
The centromere is a DNA sequence that links sister chromatids. This is also where kinetochores, protein complexes to which spindle microtubules attach, are constructed after the chromosome is replicated. The kinetochores allow the spindle microtubules to move the chromosomes within the cell during cell division.
Telomeres consist of non-coding repetitive nucleotide...
The centromere is a DNA sequence that links sister chromatids. This is also where kinetochores, protein complexes to which spindle microtubules attach, are constructed after the chromosome is replicated. The kinetochores allow the spindle microtubules to move the chromosomes within the cell during cell division.
Telomeres consist of non-coding repetitive nucleotide...
01:26Polymer Classification: Stereospecificity
Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
01:20Anionic Chain-Growth Polymerization: Overview
The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
02:40Chromosome Structure
A functional eukaryotic chromosome must contain three elements: a centromere, telomeres, and numerous origins of replication.
The centromere is a DNA sequence that links sister chromatids. This is also where kinetochores, protein complexes to which spindle microtubules attach, are constructed after the chromosome is replicated. The kinetochores allow the spindle microtubules to move the chromosomes within the cell during cell division.
Telomeres consist of non-coding repetitive nucleotide...
The centromere is a DNA sequence that links sister chromatids. This is also where kinetochores, protein complexes to which spindle microtubules attach, are constructed after the chromosome is replicated. The kinetochores allow the spindle microtubules to move the chromosomes within the cell during cell division.
Telomeres consist of non-coding repetitive nucleotide...
01:24The Seven Crystal Systems: Overview
Crystals with various point group symmetries belong to different crystal classes, which are synonymous terms. Despite being in the same class, crystals may have distinct shapes, like cubes and octahedra. There are 32 three-dimensional point groups, all of which are systematically divided into seven crystal systems.The basic cubic crystal system, exemplified by NaCl, features orthogonal vectors (α = β = �� = 90°) of equal lengths (a = b = c). When specific requirements are not imposed on the...