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Feng X, Feng K, Zheng Q, Tan W, Zhong W, Liao C, Liu Y, Li S, Hu W. Preparation and characterization of geraniol nanoemulsions and its antibacterial activity. Front Microbiol 2022; 13:1080300. [PMID: 36523845 PMCID: PMC9745324 DOI: 10.3389/fmicb.2022.1080300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 11/14/2022] [Indexed: 10/14/2023] Open
Abstract
Geraniol nanoemulsions (G-NE) based on Tween 80 and medium chain triglyceride (MCT) as surfactant and co-surfactant, respectively, has been prepared by the spontaneous emulsification method. Its physical and chemical properties such as mean particle size, zeta potential, PDI, pH, viscosity, contact angle, appearance morphology, and stability (storage stability, thermal stability, centrifugal properties, acid-base stability, and freeze-thaw properties) of the droplet were analyzed. The results showed that the mean particle size of G-NE was 90.33 ± 5.23 nm, the PDI was 0.058 ± 0.0007, the zeta potential was -17.95 ± 5.85 mV and the encapsulation efficiency was >90%. The produced G-NE has been demonstrated to be fairly stable in long-term storage at 4°C, pH = 5 and high-speed centrifuges. Moreover, G-NE had a significant inhibition effect on Staphylococcus aureus, Escherichia coli, Salmonella typhimurium and Listeria monocytogenes (p < 0.05). The bacterial inhibition rates of G-NE at a concentration of 1 MIC were 48, 99, 71.73, and 99% after 12 h of action against these four foodborne pathogenic bacteria, respectively. Therefore, the results obtained indicated that nanoemulsification enhanced the stability and antibacterial activity of geraniol to some extent, which will promote the utilization of geraniol in food preservation.
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Affiliation(s)
- Xiaolin Feng
- College of Pharmacy and Food Science, Zhuhai College of Science and Technology, Zhuhai, China
- College of Life Science, Jilin University, Changchun, China
| | - Kexin Feng
- College of Pharmacy and Food Science, Zhuhai College of Science and Technology, Zhuhai, China
- College of Life Science, Jilin University, Changchun, China
| | - Qinhua Zheng
- College of Pharmacy and Food Science, Zhuhai College of Science and Technology, Zhuhai, China
- College of Life Science, Jilin University, Changchun, China
| | - Weijian Tan
- College of Pharmacy and Food Science, Zhuhai College of Science and Technology, Zhuhai, China
- College of Life Science, Jilin University, Changchun, China
| | - Wenting Zhong
- College of Pharmacy and Food Science, Zhuhai College of Science and Technology, Zhuhai, China
- College of Life Science, Jilin University, Changchun, China
| | - Caiyu Liao
- College of Pharmacy and Food Science, Zhuhai College of Science and Technology, Zhuhai, China
- College of Life Science, Jilin University, Changchun, China
| | - Yuntong Liu
- College of Pharmacy and Food Science, Zhuhai College of Science and Technology, Zhuhai, China
- College of Life Science, Jilin University, Changchun, China
| | - Shangjian Li
- College of Pharmacy and Food Science, Zhuhai College of Science and Technology, Zhuhai, China
- College of Life Science, Jilin University, Changchun, China
| | - Wenzhong Hu
- College of Pharmacy and Food Science, Zhuhai College of Science and Technology, Zhuhai, China
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Gupta R, Rahi Alhachami F, Khalid I, Majdi HS, Nisar N, Mohamed Hasan Y, Sivaraman R, Romero Parra RM, Al Mashhadani ZI, Fakri Mustafa Y. Recent Progress in Aptamer-Functionalized Metal-Organic Frameworks-Based Optical and Electrochemical Sensors for Detection of Mycotoxins. Crit Rev Anal Chem 2022:1-22. [PMID: 36197710 DOI: 10.1080/10408347.2022.2128634] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2022]
Abstract
Mycotoxin contamination in foodstuffs and agricultural products has posed a serious hazard to human health and raised international concern. The progress of cost-effective, facile, rapid and reliable analytical tools for mycotoxin determination is in urgent need. In this regard, the potential utility of metal-organic frameworks (MOFs) as a class of crystalline porous materials has sparked immense attention due to their large specific surface area, adjustable pore size, nanoscale framework structure and good chemical stability. The amalgamation of MOFs with high-affinity aptamers has resulted in the progress of advanced aptasensing methods for clinical and food/water safety diagnosis. Aptamers have many advantages over classical approaches as exceptional molecular recognition constituents for versatile bioassays tools. The excellent sensitivity and selectivity of the MOF-aptamer biocomposite nominate them as efficient lab-on-chip tools for portable, label-free, cost-effective and real-time screening of mycotoxins. Current breakthroughs in the concept, progress and biosensing applications of aptamer functionalized MOFs-derived electrochemical and optical sensors for mycotoxins have been discussed in this study. We first highlighted an overview part, which provides some insights into the functionalization mechanisms of MOFs with aptamers, offering a foundation to create MOFs-based aptasensors. Then, we discuss various strategies to design high-performance MOFs-based aptamer scaffolds, which serve as either signal nanoprobe carriers or signal nanoprobes and their applications. We perceived that applications of optical aptamers are in their infancy in comparison with electrochemical MOFs-derived aptasensors. Finally, current challenges and prospective trends of MOFs-aptamer sensors are discussed.
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Affiliation(s)
- Reena Gupta
- Institute of Pharmaceutical Research, GLA University, Mathura, India
| | - Firas Rahi Alhachami
- Radiology Department, College of Health and Medical Technololgy, Al-Ayen University, Thi-Qar, Iraq
| | - Imran Khalid
- Department of Agriculture Extension Education, The Islamia University of Bahawalpur, Pakistan
| | - Hasan Sh Majdi
- Department of Chemical Engineering and Petroleum Industries, Al-Mustaqbal University College, Hilla, Iraq
| | - Nazima Nisar
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - R Sivaraman
- Dwaraka Doss Goverdhan Doss Vaishnav College, University of Madras Chennai, Arumbakkam, India
| | | | | | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, Iraq
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