1
|
Vargas-Reyes M, Bruna N, Ramos-Zúñiga J, Valenzuela-Ibaceta F, Rivas-Álvarez P, Navarro CA, Pérez-Donoso JM. Biosynthesis of photostable CdS quantum dots by UV-resistant psychrotolerant bacteria isolated from Union Glacier, Antarctica. Microb Cell Fact 2024; 23:140. [PMID: 38760827 PMCID: PMC11100238 DOI: 10.1186/s12934-024-02417-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 05/05/2024] [Indexed: 05/19/2024] Open
Abstract
BACKGROUND Quantum Dots (QDs) are fluorescent nanoparticles with exceptional optical and optoelectronic properties, finding widespread utility in diverse industrial applications. Presently, chemically synthesized QDs are employed in solar cells, bioimaging, and various technological domains. However, many applications demand QDs with prolonged lifespans under conditions of high-energy radiation. Over the past decade, microbial biosynthesis of nanomaterials has emerged as a sustainable and cost-effective process. In this context, the utilization of extremophile microorganisms for synthesizing QDs with unique properties has recently been reported. RESULTS In this study, UV-resistant bacteria were isolated from one of the most extreme environments in Antarctica, Union Glacier at the Ellsworth Mountains. Bacterial isolates, identified through 16 S sequencing, belong to the genera Rhodococcus, Pseudarthrobacter, and Arthrobacter. Notably, Rhodococcus sp. (EXRC-4 A-4), Pseudarthrobacter sp. (RC-2-3), and Arthrobacter sp. (EH-1B-1) tolerate UV-C radiation doses ≥ 120 J/m². Isolated UV-resistant bacteria biosynthesized CdS QDs with fluorescence intensities 4 to 8 times higher than those biosynthesized by E. coli, a mesophilic organism tolerating low doses of UV radiation. Transmission electron microscopy (TEM) analysis determined QD sizes ranging from 6 to 23 nm, and Fourier-transform infrared (FTIR) analysis demonstrated the presence of biomolecules. QDs produced by UV-resistant Antarctic bacteria exhibit high photostability after exposure to UV-B radiation, particularly in comparison to those biosynthesized by E. coli. Interestingly, red fluorescence-emitting QDs biosynthesized by Rhodococcus sp. (EXRC-4 A-4) and Arthrobacter sp. (EH-1B-1) increased their fluorescence emission after irradiation. Analysis of methylene blue degradation after exposure to irradiated QDs biosynthesized by UV-resistant bacteria, indicates that the QDs transfer their electrons to O2 for the formation of reactive oxygen species (ROS) at different levels. CONCLUSIONS UV-resistant Antarctic bacteria represent a novel alternative for the sustainable generation of nanostructures with increased radiation tolerance-two characteristics favoring their potential application in technologies requiring continuous exposure to high-energy radiation.
Collapse
Affiliation(s)
- Matías Vargas-Reyes
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andres Bello, Av. República # 330, Santiago, Chile
| | - Nicolás Bruna
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andres Bello, Av. República # 330, Santiago, Chile
| | - Javiera Ramos-Zúñiga
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andres Bello, Av. República # 330, Santiago, Chile
| | - Felipe Valenzuela-Ibaceta
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andres Bello, Av. República # 330, Santiago, Chile
| | - Paula Rivas-Álvarez
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andres Bello, Av. República # 330, Santiago, Chile
| | - Claudio A Navarro
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andres Bello, Av. República # 330, Santiago, Chile
| | - José M Pérez-Donoso
- BioNanotechnology and Microbiology Laboratory, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias de la Vida, Universidad Andres Bello, Av. República # 330, Santiago, Chile.
| |
Collapse
|
2
|
Huang Y, Lu G, Zhou L. A mini review on selenium quantum dots: synthesis and biomedical applications. Front Bioeng Biotechnol 2023; 11:1332993. [PMID: 38179132 PMCID: PMC10764425 DOI: 10.3389/fbioe.2023.1332993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 12/07/2023] [Indexed: 01/06/2024] Open
Abstract
In recent years, the demand for advanced biomedical nanomaterials has seen a noticeable surge. Among the essential trace elements in the human body, selenium has gained recognition for its anti-cancer, antioxidant, and immune regulatory properties. However, traditional selenium-based semiconductor quantum dots (QDs) are often comprised of heavy metal elements that tend to be toxic, thereby limiting their usage in biomedical applications. Fortunately, the advent of elemental selenium quantum dots (SeQDs), a new kind of fluorescent nanomaterial with unique physicochemical properties, has provided a solution to this problem. These SeQDs are known for their low toxicity and good biocompatibility, making them a promising candidate for biomedical applications. In this mini-review, we delve into the synthesis methods of fluorescent SeQDs and the latest progress in their applications in bioimaging, biosensing, and diagnosis treatment. Finally, we identify the major challenges and future prospects in the field of SeQDs.
Collapse
Affiliation(s)
| | - Guangming Lu
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, Guangxi Colleges and Universities Key Laboratory of Natural and Biomedical Polymer Materials, and College of Materials Science and Engineering, Guilin University of Technology, Guilin, China
| | - Li Zhou
- Guangxi Key Laboratory of Optical and Electronic Materials and Devices, Guangxi Colleges and Universities Key Laboratory of Natural and Biomedical Polymer Materials, and College of Materials Science and Engineering, Guilin University of Technology, Guilin, China
| |
Collapse
|
3
|
Fan S, Li X, Ma F, Yang M, Su J, Chen X. Sulfur quantum dot based fluorescence assay for lactate dehydrogenase activity detection. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
4
|
Guo J, Lu Z, Li C, Miao Y, Zhang B, Lam JWY, Shi YE, Wang Z, Tang BZ. Long-Lived Afterglow from Elemental Sulfur Powder: Synergistic Effects of Impurity and Structure. ACS OMEGA 2022; 7:30582-30589. [PMID: 36061658 PMCID: PMC9435047 DOI: 10.1021/acsomega.2c04307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Elemental sulfur is not traditionally considered as an afterglow material, even though it can be endowed with fluorescence properties through processing it into nanodots. Herein, we discovered that elemental sulfur powder could emit room temperature phosphorescence (RTP) with a lifetime of 3.7 ms. A long-lived (>12 s) afterglow emission at 77 K could also be observed by the naked eye. Detailed investigations suggested that such a special phenomenon was attributed to impurity-related traps coupled with conduction and valence bands. After the sulfur is processed into nanodots, the rigid environment formed by the cross-linking of the surface ligands could stabilize the excited charges from quenching. This results in the promotion of RTP intensity and lifetime to achieve an emission lifetime of 200 ms. These results confirm the unique RTP of elemental sulfur powder, and also suggest the potential of sulfur-based materials as versatile components for the development of RTP materials.
Collapse
Affiliation(s)
- Jiaqi Guo
- Key
Laboratory of Chemical Biology of Hebei Province Key Laboratory of
Medicinal Chemistry and Molecular Diagnosis, Ministry of Education
College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China
| | - Zhangdi Lu
- Department
of Chemistry, Hong Kong Branch of Chinese National Engineering Research
Center for Tissue Restoration and Reconstruction and Guangdong-Hong
Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional
Materials, The Hong Kong University of Science
and Technology, Kowloon, Hong Kong 999077, China
| | - Chenmin Li
- Key
Laboratory of Chemical Biology of Hebei Province Key Laboratory of
Medicinal Chemistry and Molecular Diagnosis, Ministry of Education
College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China
| | - Yuming Miao
- Key
Laboratory of Chemical Biology of Hebei Province Key Laboratory of
Medicinal Chemistry and Molecular Diagnosis, Ministry of Education
College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China
| | - Bingbing Zhang
- Key
Laboratory of Chemical Biology of Hebei Province Key Laboratory of
Medicinal Chemistry and Molecular Diagnosis, Ministry of Education
College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China
| | - Jacky W. Y. Lam
- Department
of Chemistry, Hong Kong Branch of Chinese National Engineering Research
Center for Tissue Restoration and Reconstruction and Guangdong-Hong
Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional
Materials, The Hong Kong University of Science
and Technology, Kowloon, Hong Kong 999077, China
| | - Yu-e Shi
- Key
Laboratory of Chemical Biology of Hebei Province Key Laboratory of
Medicinal Chemistry and Molecular Diagnosis, Ministry of Education
College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China
| | - Zhenguang Wang
- Key
Laboratory of Chemical Biology of Hebei Province Key Laboratory of
Medicinal Chemistry and Molecular Diagnosis, Ministry of Education
College of Chemistry & Environmental Science, Hebei University, Baoding, 071002, China
| | - Ben Zhong Tang
- Department
of Chemistry, Hong Kong Branch of Chinese National Engineering Research
Center for Tissue Restoration and Reconstruction and Guangdong-Hong
Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional
Materials, The Hong Kong University of Science
and Technology, Kowloon, Hong Kong 999077, China
- Shenzhen
Institute of Aggregate Science and Technology, School of Science and
Engineering, The Chinese University of Hong
Kong, Shenzhen City, Guangdong 518172, China
| |
Collapse
|
5
|
Ma F, Zhou Q, Yang M, Zhang J, Chen X. Microwave-Assisted Synthesis of Sulfur Quantum Dots for Detection of Alkaline Phosphatase Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2787. [PMID: 36014652 PMCID: PMC9414924 DOI: 10.3390/nano12162787] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/29/2022] [Accepted: 08/10/2022] [Indexed: 06/15/2023]
Abstract
Sulfur quantum dots (SQDs) are a kind of pure elemental quantum dots, which are considered as potential green nanomaterials because they do not contain heavy metal elements and are friendly to biology and environment. In this paper, SQDs with size around 2 nm were synthesized by a microwave-assisted method using sulfur powder as precursor. The SQDs had the highest emission under the excitation of 380 nm and emit blue fluorescence at 470 nm. In addition, the SQDs had good water solubility and stability. Based on the synthesized SQDs, a fluorescence assay for detection of alkaline phosphatase (ALP) was reported. The fluorescence of the SQDs was initially quenched by Cr (VI). In the presence of ALP, ALP-catalyzed hydrolysis of 2-phospho-L-ascorbic acid to generate ascorbic acid. The generated ascorbic acid can reduce Cr (VI) to Cr (III), thus the fluorescence intensity of SQDs was restored. The assay has good sensitivity and selectivity and was applied to the detection of ALP in serum samples. The interesting properties of SQDs can find a wide range of applications in different sensing and imaging areas.
Collapse
Affiliation(s)
- Fanghui Ma
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Qing Zhou
- State Key Lab of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Minghui Yang
- Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Jianglin Zhang
- Department of Dermatology, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha 410008, China
| |
Collapse
|
6
|
Ruan H, Zhou L. Synthesis of Fluorescent Sulfur Quantum Dots for Bioimaging and Biosensing. Front Bioeng Biotechnol 2022; 10:909727. [PMID: 35651550 PMCID: PMC9149076 DOI: 10.3389/fbioe.2022.909727] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 04/14/2022] [Indexed: 01/26/2023] Open
Abstract
The rapid industrialization has had a serious impact on the environment, leading to an increase in disease and healthcare problems. The development of simple and effective biosensors to achieve specific analyte detection and bioimaging can provide useful information for disease prevention and treatment. Sulfur quantum dots (SQDs), a new class of metal-free fluorescent nanomaterial, are being studied and applied in diagnostic fields such as bioimaging and biosensing due to their advantages of simple synthetic process, unique composition, ultrasmall size, adjustable fluorescence, and low toxicity. This minireview highlights the main synthetic methods to synthesize fluorescent SQDs and their recent progress in cell and tissue imaging, as well as detection of biomolecules, metal ions, and temperature. Finally, the future development and some critical challenges of SQDs as a fluorescent probe in the field of bioimaging and biosensing are also discussed.
Collapse
|
7
|
Chen M, Zhang J, Chang J, Li H, Zhai Y, Wang Z. Ultrasensitive detection of butyrylcholinesterase activity based on self-polymerization modulated fluorescence of sulfur quantum dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 269:120756. [PMID: 34952437 DOI: 10.1016/j.saa.2021.120756] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/29/2021] [Accepted: 12/10/2021] [Indexed: 06/14/2023]
Abstract
Butyrylcholinesterase (BChE) is an important clinical diagnosing index for liver dysfunction and organophosphate toxicity. However, the current assays for BChE activity are suffering from the relative poor detection sensitivity. In this work, an ultrasensitive fluorescence assay for BChE activity was developed based on the self-polymerization modulated fluorescence of sulfur quantum dots (S-dots). The luminescence of S-dots can be quenched by the self-polymerized dopamine. The hydrolysate of substrates, thiocholine, under the catalysis of BChE can reduce dopamine, which results in the inhibition of self-polymerization and the fluorescence recovery of S-dots. BChE can be quantitatively detected by recording the recovered fluorescence of S-dots, and a linear relationship is observed between the ratio of fluorescence and the concentration of BChE in the range from 0.01 to 10 U/L. A limit of detection as low as 0.0069 U/L calculated, which is the lowest number so far. The assay also shows excellent selectivity towards various interference species and acetylcholinesterase. These features allowed the direct detection of BChE activity in human serum, demonstrating the great practical applications of our assay.
Collapse
Affiliation(s)
- Mengyu Chen
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Jingdan Zhang
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Jianyu Chang
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Huiya Li
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China
| | - Yongqing Zhai
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China.
| | - Zhenguang Wang
- Key Laboratory of Chemical Biology of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis, Ministry of Education, College of Chemistry & Environmental Science, Hebei University, Baoding 071002, China.
| |
Collapse
|