Titanium dioxide-polyaniline/silk fibroin microfiber sensor for pork freshness evaluation

Shi, Yongqiang; Li, Zhihua; Shi, Jiyong; Zhang, Fang; Xucheng, Zhou; Li, Yahui; Holmes, Mel; Zhang, Wen; Zhang, Xiaobo

doi:10.1016/j.snb.2018.01.078

Cited by 52 publications

(24 citation statements)

References 53 publications

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“…Figure 3 showed the FTIR spectra of the samples in pellet form. Seven major vibrational peaks (1588, 1492, 1304, 1248, 1122, 824, 618 cm −1 ) are observed in the fingerprint region 33 . The peaks for N = Q = N and N – B – N stretching vibrations are observed at 1588 and 1492 cm −1 .…”

Section: Resultsmentioning

confidence: 93%

Understanding of mechanistic perspective in sensing of energetic nitro compounds through spectroscopic and electrochemical studies

Ture

Patil

Yelamaggad

et al. 2021

J of Applied Polymer Sci

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Understanding the probable mechanism of detection plays a significant role in selecting a particular fluorophore for the detection of the complicated and low volatile analyte namely, nitroaromatic and non‐aromatic high energy materials (HEMs) in the development of detection devices when compared with the existing techniques. The fluorescence quenching employing conducting polymers‐based response of HEMs have attained great significance in recent times. Amongst all conducting polymers, functionalized polyaniline can act as a fluorophore in quenching studies. This report also reveals the importance of studying electrochemical methods associated with the changes observed in the oxidation potential and its resemblance with fluorescence quenching study in establishing the probable mechanism associated with the sensing study of HEMs (viz., RDX, PETN, CL‐20 and RDX: CL‐20 Cocrystal). FTIR and resonance Raman characterization helped us to understand the interaction between nitro groups present in HEMs with benzenoid unit or polaronic or bipolaronic nitrogen of camphor sulfonic acid doped polyaniline (CSA[PANi]). Employing Stern Volmer plot, the efficiency of quenching and quenching mechanisms of complex structure formed between the fluorophore and HEMs is understood.

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Section: Resultsmentioning

confidence: 93%

Understanding of mechanistic perspective in sensing of energetic nitro compounds through spectroscopic and electrochemical studies

Ture

Patil

Yelamaggad

et al. 2021

J of Applied Polymer Sci

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“…SF has broad prospects in biomedical material applications, such as tissue engineering scaffold materials 19 and fixed active material sensors, 20 due to the excellent biocompatibility and biodegradability 21 . In our present study, we developed ABSF films for burn wound healing.…”

Section: Discussionmentioning

confidence: 94%

Antibiotic‐based silk fibroin films for burn wound healing

Yerra

Mamatha

2020

Polymers for Advanced Techs

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Silk fibroin (SF), which is a protein‐based biomacromolecule, proved to be an important biomaterial in biomedical applications and tissue engineering. The present study mainly focused to investigate the effective antibiotic against the common pathogens found at the site of burn wounds. The SF films prepared with selected antibiotics had shown activity against the target bacterial pathogens, but no activity was found against fungal species. The release of antibiotics from films resulted in the microbial susceptibility. Results have shown Ciprofloxacin—6 μg, Amoxicillin—15 μg, and Nystatin—70 μg at minimal inhibition concentration (MIC) has shown maximum zone of inhibition when compared with other antibiotics. The antibiotic‐based silk fibroin (ABSF) films have shown a positive effect on cell viability and cell adhesion on the L929 fibroblast cell line. The structural conformations of films were also carried out by FTIR and XRD, an increase in the crystalline size was observed in the antibiotic‐based film. Results demonstrate that ABSF films can act against the pathogens without losing their drug nature, can reduce the chance of infections at the site of the wound, and also can establish the basis for the accelerated healing process of the burn wound.

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“…After extraction from degummed silk fibers, firoin protein can be developed into various morphologies, including gels, sponges, films [1], and fibers, and combined with diverse functional materials to produce extraordinary properties. Currently, fibroin has broad application prospects in biomedical materials, such as tissue engineering scaffold materials [2,3] and fixed active material sensors [4], due to the excellent biocompatibility and tunable biodegradability [5] of this protein by virtue of its unique compositions and structure [6,7,8,9].…”

Section: Introductionmentioning

confidence: 99%

Microstructure Transitions and Dry-Wet Spinnability of Silk Fibroin Protein from Waste Silk Quilt

Zhang

Pan

2019

Polymers

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With excellent biocompatibility and biodegradability, silk fibroin has been developed into many protein materials. For producing regenerated silk fibroin (RSF) fibers, the conformation transition of silk fibroin needs to be thoroughly studied during the spinning process. Since the many silk fabrics that are discarded comprise an increasing waste of resources and increase the pressure on the environment, in this paper, waste silk fiber was recycled in an attempt to prepare regenerated fibroin fiber by dry-wet spinning. Ethanol was the coagulation bath. The rheological properties of all the RSF solutions were investigated to acquire rheology curves and non-Newtonian indexes for spinnability analysis. Four stages of the spinning process were carried out to obtain RSF samples and study their conformation transitions, crystallization, and thermal properties by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction, and differential scanning calorimetry. Quantitative analysis of the FTIR results was performed to obtain specific data regarding the contents of the secondary structures. The results showed that higher concentration spinning solutions had better spinnability. As the spinning process progressed, random coils were gradually converted into β-sheets and crystallization increased. Among the different influencing factors, the ethanol coagulation bath played a leading role in the conformation transitions of silk fibroin.

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Titanium dioxide-polyaniline/silk fibroin microfiber sensor for pork freshness evaluation

Cited by 52 publications

References 53 publications

Understanding of mechanistic perspective in sensing of energetic nitro compounds through spectroscopic and electrochemical studies

Understanding of mechanistic perspective in sensing of energetic nitro compounds through spectroscopic and electrochemical studies

Antibiotic‐based silk fibroin films for burn wound healing

Microstructure Transitions and Dry-Wet Spinnability of Silk Fibroin Protein from Waste Silk Quilt

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