Journal of Textile Research ›› 2025, Vol. 46 ›› Issue (09): 94-103.doi: 10.13475/j.fzxb.20240500901

• Fiber Materials • Previous Articles     Next Articles

Aromatic and antibacterial linalool/polyamide/zein micro-nano nonwovens with double envelope structure

WANG Haopeng1,2, ZHANG Jiawen1,2, NIU Yunwei3, KE Qinfei3, ZHAO Yi1,2()   

  1. 1. College of Textiles, Donghua University, Shanghai 201620, China
    2. Engineering Research Center of Technical Textile, Ministry of Education, Donghua University, Shanghai 201620, China
    3. Collaborative Innovation Center of Fragrance, Flavor and Cosmetics, Shanghai Institute of Technology, Shanghai 201418, China
  • Received:2024-05-06 Revised:2025-06-21 Online:2025-09-15 Published:2025-11-12
  • Contact: ZHAO Yi E-mail:zhaoyi@dhu.edu.cn

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Abstract:

Objective Linalool, a primary constituent of lavender essential oil, is renowned for its versatile properties, including anti-inflammatory and anti-bacterial effects, as well as its sedative and hypnotic qualities. Additionally, it exhibits potent anti-oxidation capabilities. Owing to these beneficial attributes, linalool is extensively utilized in various health-related fields, such as sleep aids, antibacterial products, and anxiety relief. Its natural calming effects make it a valuable component in aromatherapy and other wellness practices.Despite these advantages, linalool's inherent volatility and poor thermal stability present significant challenges that can limit its application efficiency and effectiveness. Its tendency to evaporate quickly can lead to a loss of potency, while its instability at higher temperatures can affect its shelf life and reliability in various formulations. In order to overcome these drawbacks and harness linalool's full potential, a novel hierarchical envelope stabilization strategy for fiber microcapsules is introduced.

Method A sophisticated hierarchical envelope stabilization strategy for fiber microcapsules is presented, which is a groundbreaking approach in the field of encapsulation technology.Micro-nano composite nonwowens were developed, which was meticulously crafted using the electrospinning technique. Polyamide-amine dendrimers (carefully designed organic molecules known for their high branching and functionality) were chose as the main material for building molecular microcapsules. Through electrospinning technology, zein-coated molecular microcapsules are prepared to achieve the sustained release of linalool.

Results The inclusion mechanism of polyamide-amine dendrimers and linalool was verified by molecular dynamics simulation, and the optimal loading rate (64.9% for polyamide-amine dendrimers) was investigated.Besides, the long-active antibacterial aromatic micro-nano nowowens (the loading rate of linalool increased from 2.61% to 13.9%) was formed, and the mechanical properties (breaking strength 21.23 cN, elongation at break 6.25%) were improved by 90.52% and 53.56%, respectively.

Conclusion The micro-nano scaffolds developed through the electrospinning of zein and polyamide-amine dendrimers have significantly improved the storage stability of linalool when kept at room temperature.Encapsulating linalool within the fibrous matrices of the micro-nano nonwowen not only protected the compound from degradation but also prolonged its antibacterial efficacy over an extended period. This advancement in encapsulation technology has allowed linalool to retain its potent antibacterial activity, making it a viable candidate for a wide range of application in the field of medical dressing, the sustained release of linalool from these micro-nano scaffolds can provide a continuous antimicrobial effect, reducing the risk of infection in wound healing environments. Furthermore, in food packaging, the integration of linalool-containing microcapsules into packaging materials can serve as a natural preservative, prolonging the shelf life of perishable goods by inhibiting the growth of bacteria and fungi.

Key words: aromatic and antibacterial, functional nonwowen, electrospun micro-nano material, linalool, polyamide-amine dendrimer

CLC Number: 

  • TS174.1

Fig.1

Loading rates of linalool by PAMAM at different mass ratios"

Fig.2

Loading rates of linalool by PAMAM at different strring time periods"

Fig.3

PAMAM enveloping linalool in aqueous solution"

Fig.4

Binding energy between molecules"

Fig.5

SEM images of zein nonwoven fabrics"

Fig.6

SEM images of nonwoven fabrics"

Fig.7

Infrared spectra of different samples"

Tab.1

Mechanical properties of materials"

试样名称 断裂强力/cN 断裂伸长率/%
玉米醇溶蛋白 15.49±2.11 4.07±0.35
芳樟醇/玉米醇溶蛋白 11.19±1.65 2.70±0.22
芳樟醇/PAMAM/玉米醇溶蛋白 21.23±1.78 6.25±0.77

Fig.8

TGA curves of zein, linalool/zein and linalool/PAMAM/zein micro-nano nonwovens"

Fig.9

DTG curves of zein, linalool/zein and linalool/PAMAM/zein micro-nano nonwovens"

Fig.10

Schematic diagram of evaluation of experimental samples against E. coli"

Fig.11

Schematic diagram of evaluation of performance against E.coli of experimental samples placed for different time periods"

Fig.12

Aromatic properties of test samples placed for 1 week (a) and 4 weeks (b)"

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