Bio-mediated synthesis of TiO2 nanoparticles and its photocatalytic effect on aquatic biofilm

Dhandapani, Perumal; Maruthamuthu, S.; Gopalakrishnan, R.

doi:10.1016/j.jphotobiol.2012.03.003

Cited by 132 publications

(63 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, it is imperative to develop novel antibiofilm agents for inhibition and eradication of already formed biofilms. Recently, metal and metal oxide nanoparticles have been found to be a useful alternate to inhibit microbial growth and prevent biofilm formation (Dhandapani et al 2012; Mu et al 2016). Several antibiotics coated with metallic nanoparticles have recently been reported to produce interesting antibiofilm and antibacterial effects (Ahmed et al 2016; Singh et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Size selectivity in antibiofilm activity of 3-(diphenylphosphino)propanoic acid coated gold nanomaterials against Gram-positive Staphylococcus aureus and Streptococcus mutans

et al. 2017

View full text Add to dashboard Cite

Biofilm formation by pathogenic bacteria is one of the major threats in hospital related infections, hence inhibiting and eradicating biofilms has become a primary target for developing new anti-infection approaches. The present study was aimed to develop novel antibiofilm agents against two Gram-positive bacteria; Staphylococcus aureus (ATCC 43300) and Streptococcus mutans (ATCC 25175) using gold nanomaterials conjugated with 3-(diphenylphosphino)propionic acid (Au-LPa). Gold nanomaterials with different sizes as 2–3 nm small and 9–90 nm (50 nm average size) large were stabilized by LPa via different chemical synthetic strategies. The nanomaterials were fully characterized using atomic force microscope (AFM), transmission electron microscope, ultraviolet–visible absorption spectroscopy, and Fourier transformation infrared spectroscopy. Antibiofilm activity of Au-LPa nanomaterials was tested using LPa alone, Au-LPa and unprotected gold nanomaterials against the both biofilm-producing bacteria. The results showed that LPa alone did not inhibit biofilm formation to a significant extent below 0.025 mM, while conjugation with gold nanomaterials displayed manifold enhanced antibiofilm potential against both strains. Moreover, it was also observed that the antibiofilm potency of the Au-LPa nanomaterials varies with size variations of nanomaterials. AFM analysis of biofilms further complemented the assay results and provided morphological aspects of the antibiofilm action of Au-LPa nanomaterials.

show abstract

Section: Introductionmentioning

confidence: 99%

Size selectivity in antibiofilm activity of 3-(diphenylphosphino)propanoic acid coated gold nanomaterials against Gram-positive Staphylococcus aureus and Streptococcus mutans

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Mandal et al [18] proposed that the proteins could bind with nanoparticles either through free amine groups or crystalline residues in the proteins. The carboxylic groups are known to coordinate with metal ions, which may act as a nucleation site for nanoparticle formation [19][20][21]. The surface morphology of synthesized nanoparticles was investigated using SEM.…”

Section: Resultsmentioning

confidence: 99%

Photocatalytic degradation of a textile dye Reactive Red 31 using phyto-synthesized titanium nanoparticles under solar irradiation

Khan

Fulekar

2015

Desalination and Water Treatment

View full text Add to dashboard Cite

In the present work, we have reported a sustainable and effective method for the degradation of a textile dye Reactive Red 31 (RR31) using synthesized titanium nanoparticles. Titanium dioxide nanoparticles were synthesized using a noxious weed, Parthenium hysterophorus, as reducing and capping agent for the first time. The synthesized nanoparticles were characterized and confirmed as TiO 2 nanoparticles by using X-ray diffraction spectroscopy, Fourier transformation infrared spectroscopy, and scanning electron microscopy analysis. A glass reactor was designed and developed for the degradation of dye under solar radiations. Photocatalytic degradation of Reactive Red 31 was carried out at different concentrations using synthesized nanoparticles. UV-vis spectroscopy, total organic carbon, and total inorganic carbon analysis were carried out for the determination of dye degradation. The results reveal that biogenic TiO 2 nanomaterial acts as a good photocatalyst for the degradation of textile dye Reactive Red 31.

show abstract

“…TEM analysis TiO 2 nanoparticles explored that they are mostly spherical in shape in the range of 10-30 nm. Further study carried out using SAED revealed that they have crystalline structure [98]. It has been found that TEM has 1000-fold higher resolution as compared to SEM.…”

Section: Characterization Of Nanoparticlesmentioning

confidence: 97%

Superior photocatalytic degradation of azo dyes in aqueous solutions using TiO2/SrTiO3 nanocomposite

Karimi

Zohoori

2013

J Nanostruct Chem

View full text Add to dashboard Cite

Green chemistry approaches for the synthesis of metallic nanoparticles have become a new and promising field of research in recent years. Synthesis of metal nanoparticles [like gold (Au), silver (Ag), lead (Pb), platinum (Pt), copper (Cu), iron (Fe), cadmium (Cd), and other metal oxides such as titanium oxide (TiO), zinc oxide (ZnO), etc.] by various chemical and physical approaches as well as the biological approaches mediated by number of microorganisms have been actively found. Plant-mediated synthesis approaches are found to be more reliable and economic route to synthesize these metal nanoparticles. Owing to the biodiversity of plant biomasses, the actual mechanism by which the plant constituents have contributed to the synthetic process is yet to be fully known. Although the feasibility of controlling, the size and shape of nanoparticles by variation in reaction conditions have been demonstrated in many studies. Conventionally, nanoparticles are synthesized by chemicals and physicochemical methods using several chemicals which later on become accountable for various risk due to their general toxicity, so that solving the objective biological approaches is coming up to fill these gaps. The plant-mediated synthesis process undergoes highly controlled approaches for making them suitable for metal nanoparticle synthesis. In addition, biological synthesis of metallic nanoparticles is inexpensive, one-step, and eco-friendly method. In addition, the plant-mediated nanoparticles are used as potential pharmaceutical agents for various diseases such as malaria, HIV, cancer, hepatitis, and other diseases. Including this some other relevant information regarding nanopharmaceutical products, companies that are involve in the manufacturing and commercialization process and their clinical trial status are also discussed. This review article gives an overview of the plant-mediated synthesis of metal nanoparticles, possible compounds, and mechanisms that might be responsible for the reduction process as well as the potential pharmacological applications, currently available nanopharmaceutical products and their marketing status.

show abstract

Bio-mediated synthesis of TiO2 nanoparticles and its photocatalytic effect on aquatic biofilm

Cited by 132 publications

References 32 publications

Size selectivity in antibiofilm activity of 3-(diphenylphosphino)propanoic acid coated gold nanomaterials against Gram-positive Staphylococcus aureus and Streptococcus mutans

Size selectivity in antibiofilm activity of 3-(diphenylphosphino)propanoic acid coated gold nanomaterials against Gram-positive Staphylococcus aureus and Streptococcus mutans

Photocatalytic degradation of a textile dye Reactive Red 31 using phyto-synthesized titanium nanoparticles under solar irradiation

Superior photocatalytic degradation of azo dyes in aqueous solutions using TiO2/SrTiO3 nanocomposite

Contact Info

Product

Resources

About