相关实验视频

Updated: Jan 20, 2026

Photodegradable Hydrogel Interfaces for Bacteria Screening, Selection, and Isolation

Photodegradable Hydrogel Interfaces for Bacteria Screening, Selection, and Isolation

Published on: November 4, 2021

可逆和选择性的温度控制混合水凝 (II) 从最小培养媒介中去除

Jue Wang¹, Qingyuan Hu¹, Chunhong Liu¹

¹State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China.

|January 19, 2026

概括

研究人员开发了一种新型热敏水凝 (PNIPAM-co-Zap1zf12) 用于选择性去除离子 (Zn2+). 这种蛋白质功能化的材料有效地从溶液中消耗Zn2+,为生物研究创造了缺乏的条件.

科学领域:

生物材料科学生物材料科学
生物化学生物化学
材料化学材料化学

背景情况:

离子 (Zn2+) 在生物系统中是必不可少的,需要方法来创建受控的Zn2+缺乏环境进行研究.
蛋白质功能化材料提供选择性分析物捕获,将蛋白质特异性与材料特性结合起来.
聚N-异烯胺 (PNIPAM) 水凝提供温度控制的可逆吸附能力.

研究的目的:

开发一种热敏的混合水凝,用于选择性去除和耗尽离子 (Zn2+).
将Zap1蛋白 (Zap1zf12) 的结合域集成到PNIPAM水凝矩阵中.
创建一个可重复使用的系统,在生物介质中产生缺乏条件.

主要方法:

合理设计Zap1zf12的交叉连接站点,以便整合到PNIPAM.
为PNIPAM-co-Zap1zf12.12优化蛋白质修饰和水凝合成.
对温度控制的可逆吸附和Zn2+去除效率的评估.

主要成果:

该PNIPAM-co-Zap1zf12水凝证明了可逆Zn2+吸附与温度变化 (37°C捕获,25°C释放).
实现了高Zn2+去除效率98.4 ± 7.3%,将度从804.1 ± 41.9 nmol/L降低到12.6 ± 5.8 nmol/L.
在各种最小培养介质中成功应用了水凝用于选择性Zn2+耗尽.

结论:

通过温度响应机制,PNIPAM-co-Zap1zf12水凝可以选择性吸附和耗尽Zn2+.
混合材料提供了一种可重复使用和无化剂的方法,用于产生缺乏的条件.
这项技术推动了蛋白质功能化水凝在生物研究和材料科学中的应用.

更多相关视频

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture

Published on: July 10, 2013

Enrichment Cultures, Selective and Differential Media

Enrichment Cultures, Selective and Differential Media

Published on: April 30, 2023

相关概念视频

Enrichment Cultures: Culturing Aerobic and Anaerobic Microbes on Selective and Differential Medias

Enrichment Cultures: Culturing Aerobic and Anaerobic Microbes on Selective and Differential Medias

Source: Christopher P. Corbo1, Jonathan F. Blaize1, Elizabeth Suter1
1 Department of Biological Sciences, Wagner College, 1 Campus Road, Staten Island NY, 10301
Prokaryotic cells are able to inhabit nearly every environment on this planet. As a kingdom, they possess a great metabolic diversity, allowing them to use a wide variety of molecules for energy generation (1). Therefore, when cultivating these organisms in the lab, all necessary and specific molecules required to make energy must be...

Photodegradable Hydrogel Interfaces for Bacteria Screening, Selection, and Isolation

Photodegradable Hydrogel Interfaces for Bacteria Screening, Selection, and Isolation

The use of photodegradable hydrogels to isolate bacterial cells by utilizing a high-resolution light pattering tool is reported. Essential experimental procedures, results, and advantages of the process are reviewed. The method enables rapid and inexpensive isolation of targeted bacteria showing rare or unique functions from heterogeneous communities or populations.

Selectively Removing Microglia from a Rat Cerebellar Granule Neuron Culture

Selectively Removing Microglia from a Rat Cerebellar Granule Neuron Culture

This video demonstrates a technique for the selective removal of microglia from a primary rat neuronal culture. Cerebellar granule neurons are treated with an antimetabolite to eliminate proliferating glial cells. Additionally, they are treated with lysosome-targeting agents to deplete microglia from the...

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture

Printing Thermoresponsive Reverse Molds for the Creation of Patterned Two-component Hydrogels for 3D Cell Culture

A bioprinter was used to create patterned hydrogels based on a sacrificial mold. The poloxamer mold was backfilled with a second hydrogel and then eluted, leaving voids which were filled with a third hydrogel. This method uses fast elution and good printability of poloxamer to generate complex architectures from...

Multiplex PCR and Reverse Line Blot Hybridization Assay (mPCR/RLB)

Multiplex PCR and Reverse Line Blot Hybridization Assay (mPCR/RLB)

An inexpensive, high throughput method for simultaneous detection of up to 43 molecular targets is described. Applications of mPCR/RLB include microbial typing and detection of multiple pathogens from clinical...

Controlled Strain of 3D Hydrogels under Live Microscopy Imaging

Controlled Strain of 3D Hydrogels under Live Microscopy Imaging

The presented method involves uniaxial stretching of 3D soft hydrogels embedded in silicone rubber while allowing live confocal microscopy. Characterization of the external and internal hydrogel strains as well as fiber alignment are demonstrated. The device and protocol developed can assess the response of cells to various strain...