Hydrophilic Carbon Nano-Particles; Preparation and Applications

The hydrophilic carbon nanoparticles have been produced from synthetic graphite blocks by the electrochemical oxidation method in pure water. The resulting electrolyzed solution contains colloidal carbon nanoparticles (mean diameter is ca. 400 nm) and shows the pH value of around 2.5. The colloidal state of the solution is maintained more than a several years. After evaporation of water from the solution, carbon powders are obtained, which show a high solubility to water, namely the powder is hydrophilic. The electrolyzed solution containing carbon nanoparticles directly used as the electrical conductivity enhancer for the restoring the deteriorated lead-acid batteries by electrochemical method. The hydrophilic carbon nanoparticles were used as the environmental friendly solid-lubricant for the mechanical cutting coolants. In the case of aqueous coolants, the oily substances are used in the emulsion state in usual. By using the hydrophilic carbon nanoparticle suspension, no surfactants and no oily substances are required to maintain the suspension state. However, the cutting coolants are used in the pH values of alkaline state near 10, so the hydrophilic carbon nanoparticle solution has been neutralized by alkaline substances such as alkanolamines. In the case of oily cutting fluids for heavy duties, carbon mamo-particle powders are used after neutralized by basic barium dinonylnaphthalenesulfonate. The aqueous solutions of hydrophilic carbon nanoparticles exhibit the ability of sanitization effects to the cutting fluids and prolong the life times of them.

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Preparation and Applications of Hydrophilic Nano-Carbon Particles

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.832.767 ◽

2013 ◽

Vol 832 ◽

pp. 767-772 ◽

Cited By ~ 5

Author(s):

Shoichiro Ikeda ◽

Shinji Kawasaki ◽

Akinari Nobumoto ◽

Hideo Ono ◽

Shinji Ono ◽

...

Keyword(s):

Carbon Nanoparticles ◽

Room Temperature ◽

Ph Value ◽

Pure Water ◽

Solid Lubricants ◽

Cutting Fluids ◽

Carbon Particles ◽

Synthetic Graphite ◽

Nano Carbon

We have produced nanocarbon suspension in pure water, which is named as Nanocaloid®, by a simple DC electrolysis from a synthetic graphite plates as anodes and SUS plates as cathodes in purified water at room temperature. The amount of carbon nanoparticles was monitored by the conductivity and pH value of the electrolyte solution, and also by a simple gravimetric way after drying the solution. If the current density increases, the diameter of the carbon particles becomes larger and the amount of precipitates becomes also large. It takes about six weeks to obtain about 0.4 wt% carbon suspension solution under the normal electrolysis conditions. Characterization of Nanocaloid®has been conducted to show unique properties and promising epoch-making applications such as solid lubricants for non-oily cutting fluids and conductive agents for reuse of deteriorated Pb-acid batteries. The performance of nanocarbon particles in oil lubricants in addition to the preparation will be reported.

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Carbon nanoparticle suspension could help get a more accurate nodal staging for patient with rectal cancer

Scientific Reports ◽

10.1038/s41598-021-89541-5 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Wei Ge ◽

Qiang Li ◽

Wen-jia Liu ◽

Xiao-Qi Zhang ◽

Xiang-shan Fan ◽

...

Keyword(s):

Lymph Nodes ◽

Carbon Nanoparticles ◽

Controlled Trial ◽

Control Group ◽

Study Group ◽

Nodal Staging ◽

Nanoparticle Suspension ◽

Carbon Nanoparticle ◽

The Mean ◽

Carbon Nanoparticle Suspension

AbstractThis study aimed to evaluate whether carbon nanoparticles could improve the accuracy of nodal staging in colorectal cancer (CRC). We performed a randomized controlled trial with CRC at the department of general surgery, the affiliated hospital of Nanjing University Medical School. A total of 160 patients were recruited in this research and 132 patients were included in the safety analyses. Among these patients, 72 cases were classified into control group and 60 cases into study group. The mean number of lymph nodes harvested from patients in study group was 19.3 ± 6.7 (range from 4 to 38), which was higher than that in control group (15.1 ± 5.7 (range from 3 to 29)) (p < 0.001). The mean number of positive lymph nodes got from patients in study group was 1.7 ± 3.5 (range from 0 to 22), which was also higher than that in control group (0.7 ± 1.4 (range from 0 to 7)) (p = 0.045). In study group, there were 30 patients (50%) proved to be N0, and remaining 30 patients (50%) were N1 or N2. However, 50 patients (69.4%) were N0 and 22 patients (30.6%) were N1 or N2 in control group. The rate of N0 in control group was significantly higher than that in study group (p = 0.023). Injecting carbon nanoparticle suspension could get a more accurate nodal staging to receive enough chemoradiotherapy, improving prognosis. Besides, injecting carbon nanoparticles suspension at four points 5 cm, 10 cm, 15 cm and 20 cm away from the anus by “sandwich” method was a new try.Trial registration: This study was registered with ClinicalTrials.gov, number ChiCTR1900025127 on 12/8/2019.

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Environmentally Friendly Route for Fabricating Conductive Agent for Lithium-Ion Batteries: Carbon Nanoparticles Derived from Polyethylene

Catalysts ◽

10.3390/catal11040424 ◽

2021 ◽

Vol 11 (4) ◽

pp. 424

Author(s):

Jihye Mok ◽

Dalsu Choi ◽

Suk Ho Bhang

Keyword(s):

Lithium Ion Batteries ◽

Carbon Nanoparticles ◽

Nanoparticle Synthesis ◽

Lithium Ion ◽

Environmentally Friendly ◽

Carbon Nanoparticle ◽

P Utilization ◽

Stable Performance ◽

Conductive Agent ◽

Economical Advantage

Here, we introduce an environmentally friendly way of fabricating carbon nanoparticles which can be utilized as conductive agent for lithium-ion batteries (LIBs). Polyethylene (PE), which comprises the largest portion of plastic waste, was used as a source for carbon nanoparticle synthesis. Sulfonation allowed chemical structural transformation of innately non-carbonizable PE into a carbonizable conformation, and carbon nanoparticles could be successfully derived from sulfonated PE. Then, PE-derived carbon nanoparticles were used as conductive agents for LIBs, and assembled cells exhibited stable performance. Even though the performance is not as good as Super-P, utilization of PE as a source of conductive agent for LIBs might provide an economical advantage to upcycle PE.

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Carbon nanoparticles for identification of metastatic lymph nodes around the superior mesenteric artery in transverse colon cancer

10.21203/rs.3.rs-19228/v1 ◽

2020 ◽

Author(s):

YuXin Xu ◽

Pan Chi ◽

Ying Huang ◽

XiaoJie Wang ◽

DaoXiong Ye

Keyword(s):

Colon Cancer ◽

Lymph Nodes ◽

Superior Mesenteric Artery ◽

Transverse Colon ◽

Mesenteric Artery ◽

Carbon Nanoparticles ◽

Transverse Colon Cancer ◽

Carbon Nanoparticle ◽

Metastatic Lymph Nodes ◽

Positive Station

Abstract Background Accurate identification of metastatic lymph nodes around the superior mesenteric artery (SMA), with or without metastasis, is vital for surgeons when dissecting lymph nodes in patients with transverse colon cancer. In the current study, we evaluated the prospect of using carbon nanoparticles in identification of lymph nodes around SMA. Methods We recruited a total of 220 patients, with transverse colon cancer, and divided them into two groups. The first group (n=51) was carbon nanoparticle (CN) while the other (n=169) had no carbon nanoparticle (NCN) group. Intraoperative and post-operative data were compared between the groups. Results We found that 117 patients were negative for D1 lymph nodes, while 3.4% were positive for D2 lymph nodes. Additionally, 169 patients were negative for D2 lymph nodes while 10.7% of patients were positive for D3 lymph nodes. Laparoscopy easily identified black-dyed lymph nodes in the CN group. Significantly higher numbers of positive station D3 lymph nodes (0.63 ± 2.43 vs 0.29 ± 1.03, p = 0.006), number of positive station 214 nodes (0.10 ± 0.13 vs 0.08 ± 0.17, p = 0.004), the number of positive lymph nodes (2.69 ± 5.38 vs 1.90 ± 4.22, p = 0.037), and the number of total lymph nodes (39.67 ± 19.33 vs 34.50 ± 18.99, p = 0.037) were found in the CN compared to NCN group. However, we found no significant differences between CN and NCN groups with regards to the number of positive station D1 and D2 lymph nodes. Conclusions We successfully identified metastases 214 LNs around SMA in transverse colon cancer using carbon nanoparticles. These particles have potential to significantly increase the number of positive and negative lymph nodes.

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Role of carbon nanoparticle suspension in sentinel lymph node biopsy for early-stage cervical cancer: a prospective study

Authorea ◽

10.22541/au.158447714.43578384 ◽

2020 ◽

Author(s):

Ya Xie ◽

Qian Wang ◽

Huiqing Li ◽

Haixiao Wen ◽

Weiwei Zhang ◽

...

Keyword(s):

Cervical Cancer ◽

Early Stage ◽

Lymph Node Biopsy ◽

Nanoparticle Suspension ◽

Carbon Nanoparticle ◽

Node Biopsy ◽

Early Stage Cervical Cancer ◽

A Prospective Study ◽

Carbon Nanoparticle Suspension

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Carbon Nanoparticle Spectrophotometric Determination of Glucose

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.726-731.1453 ◽

2013 ◽

Vol 726-731 ◽

pp. 1453-1456

Author(s):

Ai Hui Liang ◽

Jing Peng ◽

Yuan Li ◽

Ling Ling Ye ◽

Gui Qing Wen

Keyword(s):

Linear Relationship ◽

Spectrophotometric Determination ◽

Glucose Concentration ◽

Carbon Nanoparticles ◽

Absorption Peak ◽

Carbon Nanoparticle ◽

Good Linear ◽

Good Linear Relationship ◽

Glucose Injection

In the presence of NaOH, glucose hydrolyze and polymerize to generate yellow carbon nanoparticles that had an absorption peak at 336 nm. Under the selected conditions, result showed the concentration of glucose have a good linear relationship between absorbance value and glucose concentration in the range of 0.0005-0.060 mol/L. This method has been used for the assay of glucose injection sample, with simplicity, rapidity, and accuracy.

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Surface integrity and Flank wear response under Pure coconut oil-Al2O3 nano MQL turning of Al-7079/7wt.%-TiC in-situ metal matrix composites

Journal of Tribology ◽

10.1115/1.4051863 ◽

2021 ◽

pp. 1-21

Author(s):

Sujith S V ◽

Rahul Mulik

Keyword(s):

Metal Matrix ◽

Coconut Oil ◽

Nano Particles ◽

Cutting Fluids ◽

Matrix Composites ◽

Dry Machining ◽

Cutting Zone ◽

Cutting Zone Temperature ◽

Zone Temperature

Abstract Major cooling and lubricating properties such as conduction, convection and lubricant stability at higher temperature are improvised by the addition nano particle into metal cutting fluids. The present investigation is mainly focused into the effects of pure coconut oil (PC) based nano-fluids through minimum quantity lubrication (MQL) on oblique cutting performance of Al-7079/7wt.%-TiC in-situ reinforced metal matrix composites (MMCs). The machining performance has been evaluated under dry machining, pure coconut oil (PC)-MQL and MQL by varying 0.1 % to 0.6 vol. % nano particles into PC. The performance of nano cutting fluids were compared to dry machining and PC machining in terms of cutting forces, tool wear, cutting zone temperature, and surface roughness respectively. It has found that, compared to dry and PC-MQL machining, the performance of nano MQL machining was superior among all cutting conditions. However, above 0.4 % nano particles, the nano MQL performance was degraded drastically which leads to the substantial increment in cutting forces, tool wear, surface roughness and cutting zone temperature respectively.

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Preparation and Application of Metal Nanoparticals Elaborated Fiber Sensors

Sensors ◽

10.3390/s20185155 ◽

2020 ◽

Vol 20 (18) ◽

pp. 5155

Author(s):

Jin Li ◽

Haoru Wang ◽

Zhi Li ◽

Zhengcheng Su ◽

Yue Zhu

Keyword(s):

Optical Fiber ◽

Ph Value ◽

Hot Spot ◽

Incident Light ◽

Environmental Parameters ◽

Optical Diffraction ◽

Nano Particles ◽

Physical Parameters ◽

Compact Structure ◽

Metal Nano Particles

In recent years, surface plasmon resonance devices (SPR, or named plamonics) have attracted much more attention because of their great prospects in breaking through the optical diffraction limit and developing new photons and sensing devices. At the same time, the combination of SPR and optical fiber promotes the development of the compact micro-probes with high-performance and the integration of fiber and planar waveguide. Different from the long-range SPR of planar metal nano-films, the local-SPR (LSPR) effect can be excited by incident light on the surface of nano-scaled metal particles, resulting in local enhanced light field, i.e., optical hot spot. Metal nano-particles-modified optical fiber LSPR sensor has high sensitivity and compact structure, which can realize the real-time monitoring of physical parameters, environmental parameters (temperature, humidity), and biochemical molecules (pH value, gas-liquid concentration, protein molecules, viruses). In this paper, both fabrication and application of the metal nano-particles modified optical fiber LSPR sensor probe are reviewed, and its future development is predicted.

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