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相关概念视频

Polymers02:34

Polymers

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The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
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The psychodynamic perspective in psychology asserts that most personality functions operate unconsciously, outside of awareness. This means that the motives and emotions driving behavior often remain hidden, automatically buried in the unconscious mind as a defense mechanism to shield us from psychological distress. According to this theory, the unconscious mind contains thoughts, memories, and emotions that are too disturbing to face directly.
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Social cognitive perspectives on personality emphasize the importance of conscious awareness, beliefs, expectations, and goals in shaping behavior. These perspectives incorporate behaviorist principles, such as learning through reinforcement and conditioning, but extend beyond them by highlighting human reasoning and planning. Unlike traditional behaviorist views, social cognitive theory focuses on how individuals reflect on their past experiences and plan for future outcomes by considering...
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In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
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Behaviorists view personality as primarily shaped by environmental reinforcements and consequences. According to this perspective, behavior is influenced by external stimuli, and individuals adjust their actions based on rewards and punishments. Over time, learning histories — accumulated patterns of reinforcement — play a significant role in shaping personality. Behaviors that lead to positive outcomes are reinforced, while those resulting in negative outcomes are diminished.
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智能聚合物衍生注射水凝:现状和未来前景

Swarup Maity1, Koushik Mahata2, Bharatbhushan Meshram1

  • 1Department of Chemistry, Indian Institute of Technology Bhilai, Durg, Chhattisgarh 491002, India.

ACS polymers Au
|February 9, 2026
PubMed
概括
此摘要是机器生成的。

智能注射水凝 (SIHs) 提供药物输送和组织再生的先进控制. 未来的SIH的目标是改善临床使用的机械强度,生物降解性和可扩展性.

关键词:
可生物相容的SIHs.生物医学应用程序药物输送是药物输送的过程.在现场凝凝.基于微凝的IHs.基于天然聚合物的SIHs.自愈的水凝可以自愈.剪切薄化水凝的使用方法智能注射水凝 (SIHs) 是一种智能注射水凝.组织工程是组织工程.

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科学领域:

  • 生物材料科学 生物材料科学
  • 聚合物化学 聚合物化学
  • 再生医学是一种再生医学.

背景情况:

  • 可注射水凝 (IHs) 是先进的软材料,具有组织符合性,现场凝性和最小侵入性.
  • 响应刺激的聚合物衍生智能注射水凝 (SIHs) 动态地对外部触发器 (温度,pH,氧化还原,酶) 作出反应,从而实现精确的时空控制.

研究的目的:

  • 为SIHs的注射性和功能提供一个全面的基本原则的综述.
  • 批判性地分析SIH生物医学应用的最新进展,重点关注结构-属性关系,质行为和交叉链接机制.

主要方法:

  • 关于对刺激有反应的聚合物衍生智能注射水凝的最新文献的综述.
  • 对交叉连接策略的分析,包括可逆的共价和超分子相互作用.
  • 评估结构-属性连接,质行为和刺激触发过渡.

主要成果:

  • 在治疗,组织再生和自我愈合方面,SIHs具有显著的潜力.
  • 最近交叉链接策略的进展提高了SIH适应生理环境的适应性.
  • 应用范围包括生物传感,再生医学,组织工程和癌症治疗.

结论:

  • 尽管取得了进展,但机械脆弱性,生物降解性和细胞毒性等挑战阻碍了临床翻译.
  • 新兴的策略包括生物灵感的聚合物设计,模块化交叉链接和可扩展的制造.
  • 未来的SIH需要综合设计原则,以提高性能,生物相容性和临床相关性.