Poly‐ l ‐Lactic Acid/Graphene Electrospun Composite Nanofibers for Wearable Sensors

2020 ◽  
Vol 8 (5) ◽  
pp. 1901252 ◽  
Author(s):  
Xuan Li ◽  
Sai Chen ◽  
Xianye Zhang ◽  
Jinhao Li ◽  
Haihui Liu ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Composite Nanofibers ◽  
Wearable Sensors

Characterization of Electrospun Poly(Lactic Acid)/polyaniline Blend Nanofibers

2011 ◽  
Vol 332-334 ◽  
pp. 317-320 ◽  
Author(s):  
Hui Qin Zhang
Keyword(s):  
Lactic Acid ◽  
Composite Nanofibers ◽  
Weight Ratio ◽  
Electrospinning Process ◽  
Poly Lactic Acid ◽  
X Ray Diffraction ◽  
Sem Images ◽  
X Ray ◽  
Ft Ir

In this study, composite nanofibers of polyaniline doped with dodecylbenzene sulfonic acid (PANI-DBSA) and Poly(lactic acid) (PLA) were prepared via an electrospinning process. The surface morphology, thermal properties and crystal structure of PLA/PANI-DBSA nanofibers are characterized using Fourier transform infrared spectroscopy (FT-IR), wide-angle x-ray diffraction (WAXD) and scanning electron microscopy (SEM). SEM images showed that the morphology and diameter of the nanofibers were affected by the weight ratio of blend solution.

scholarly journals Morphology and Surface Properties of Poly (L-lactic acid)/Captopril Composite Nanofiber Membranes

2012 ◽  
Vol 7 (1) ◽  
pp. 155892501200700 ◽  
Author(s):  
Anfang Wei ◽  
Juan Wang ◽  
Xueqian Wang ◽  
Dayin Hou ◽  
Qufu Wei
Keyword(s):  
Lactic Acid ◽  
Composite Nanofibers ◽  
Chemical Components ◽  
Pore Width ◽  
Surface Areas ◽  
Composite Nanofiber ◽  
Mass Fractions ◽  
Ft Ir ◽  
Nanofiber Membranes ◽  
Better Than

In this study, Poly (L-lactic acid)/Captopril composite nanofiber membranes were electrospun for drug delivery. Different mass fractions of Poly (L-lactic acid), different ratios of Captopril and the influences of PEG4000 added in the spinning solution are discussed. The morphology, chemical components, the surface areas and pore sizes, wettability of the composite nanofiber membranes were investigated. The results showed that the diameters of the composite nanofibers increased with the increase of Poly (L-lactic acid) mass fractions, the diameters decreased with the increase of Captopril content as well as the addition of the surfactant. Fourier Transform Infrared (FT-IR) showed the chemical components of Captopril remained unchanged when it was electrospun into the composite nanofibers. The surface areas pore width and pore volume of the composite nanofibers became a little larger than those of poly (L-lactic acid) nanofibers, and the wettability of the composite nanofiber membranes was better than those of poly (L-lactic acid) nanofiber membranes. Wettability was improved by an increase of the drug load amount.

scholarly journals Wearable Sensors for the Detection of Biomarkers for Wound Infection

Biosensors ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 1
Author(s):  
Alexandra Pusta ◽  
Mihaela Tertiș ◽  
Cecilia Cristea ◽  
Simona Mirel
Keyword(s):  
Wound Healing ◽  
Uric Acid ◽  
Lactic Acid ◽  
Wound Infection ◽  
Inflammatory Mediators ◽  
Wearable Sensors ◽  
Major Complication ◽  
Wound Dressings ◽  
Infection Diagnosis ◽  
Detection Of Biomarkers

Infection represents a major complication that can affect wound healing in any type of wound, especially in chronic ones. There are currently certain limitations to the methods that are used for establishing a clinical diagnosis of wound infection. Thus, new, rapid and easy-to-use strategies for wound infection diagnosis need to be developed. To this aim, wearable sensors for infection diagnosis have been recently developed. These sensors are incorporated into the wound dressings that are used to treat and protect the wound, and are able to detect certain biomarkers that can be correlated with the presence of wound infection. Among these biomarkers, the most commonly used ones are pH and uric acid, but a plethora of others (lactic acid, oxygenation, inflammatory mediators, bacteria metabolites or bacteria) have also been detected using wearable sensors. In this work, an overview of the main types of wearable sensors for wound infection detection will be provided. These sensors will be divided into electrochemical, colorimetric and fluorimetric sensors and the examples will be presented and discussed comparatively.

Wearable sensors made with solution-blow spinning poly(lactic acid) for non-enzymatic pesticide detection in agriculture and food safety

2021 ◽  
pp. 113875
Author(s):  
Rafaella T. Paschoalin ◽  
Nathalia O. Gomes ◽  
Gabriela F. Almeida ◽  
Stanley Bilatto ◽  
Cristiane S. Farinas ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Food Safety ◽  
Wearable Sensors ◽  
Poly Lactic Acid ◽  
Pesticide Detection ◽  
Solution Blow Spinning ◽  
Agriculture And Food

Structure and properties of novel electrospun tussah silk fibroin/poly(lactic acid) composite nanofibers

2010 ◽  
Vol 46 (9) ◽  
pp. 2938-2946 ◽  
Author(s):  
Jianxin He ◽  
Yongrui Qin ◽  
Shizhong Cui ◽  
Yaying Gao ◽  
Shanyuan Wang
Keyword(s):  
Lactic Acid ◽  
Silk Fibroin ◽  
Composite Nanofibers ◽  
Poly Lactic Acid ◽  
Structure And Properties ◽  
Tussah Silk Fibroin

scholarly journals Polyvinyl alcohol/starch composite nanofibers by bubble electrospinning

2014 ◽  
Vol 18 (5) ◽  
pp. 1473-1475 ◽  
Author(s):  
Zhi Liu ◽  
Ji-Huan He
Keyword(s):  
Thermal Stability ◽  
Lactic Acid ◽  
Polyvinyl Alcohol ◽  
Composite Nanofibers ◽  
Weight Ratio ◽  
Synthetic Polymers ◽  
Poly Lactic Acid ◽  
Nano Materials

Bubble electrospinning exhibits profound prospect of industrialization of macro/ nano materials. Starch is the most abundant and inexpensive biopolymer. With the drawbacks of poor strength, water resistibility, thermal stability and processability of pure starch, some biodegradable synthetic polymers such as poly (lactic acid), polyvinyl alcohol were composited to electrospinning. To the best of our knowledge, composite nanofibers of polyvinyl alcohol/starch from bubble electrospinning have never been investigated. In the present study, nanofibers of polyvinyl alcohol/starch were prepared from bubble electrospinning. The processability and the morphology were affected by the weight ratio of polyvinyl alcohol and starchy. The rheological studies were in agreement with the spinnability of the electrospinning solutions.

Strengthened and Thermally Resistant Poly(lactic acid)-Based Composite Nanofibers Prepared via Easy Stereocomplexation with Antibacterial Effects

2018 ◽  
Vol 10 (49) ◽  
pp. 42992-43002 ◽  
Author(s):  
Lan Mei ◽  
Yangmei Ren ◽  
Yingchun Gu ◽  
Xiaoling Li ◽  
Chao Wang ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Composite Nanofibers ◽  
Poly Lactic Acid ◽  
Antibacterial Effects
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