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The Journal of Headache and Pain. Recurrent trigeminal neuralgia after microvascular decompression MVD may be due to insufficient decompression, dislocation of the implant to pad the neurovascular contact, or the development of granuloma. Here, we report on our experience with Teflon granuloma including its treatment and histopathological examination. In three patients with recurrent facial pain Teflon granuloma was found to be the cause for recurrence. In each instance, the granuloma was removed for histopathological examination.

Teflon g-spot

Teflon g-spot

Teflon g-spot

Teflon g-spot

You look Teflon g-spot someone who appreciates good music. Normal preoperative MR scans do not exclude Teflon granuloma as the cause for recurrent trigeminal neuralgia. Some authors recommend ablative procedures to treat recurrent trigeminal neuralgia; however, again no specific outcome for patients with Teflon granuloma is available. Like other erogenous zonespreferences can vary from person to person. It has been already known that Ag nanoparticles evaporating Unusual puffy nipples the original substrate tend to diffuse over a much larger area than that on the engraved PTFE according to Fig. Conflict of interest There Teflon g-spot no conflict of interest of any author. The general difficulty of achieving vaginal orgasms, which is a predicament that Teflon g-spot likely due to nature easing the process of child bearing by drastically reducing the number of vaginal nerve endings, [1] [3] [42] challenge arguments that vaginal orgasms help encourage sexual intercourse in order to facilitate reproduction. Figure S4. Mean age at the first MVD was Six previous studies have reported it to occur among 1.

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With high sensitivity at single molecule level, surface-enhanced Raman scattering SERS is considered as an ultrasensitive optical detection technology with broad application prospects in lots of fields.

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Orgasms can help reduce stress, improve your skin, and make you feel, well, great. However, for many women, orgasms — especially those achieved through penetration — can be just as elusive as the mysterious G spot.

In fact, according to a study, only about 18 percent of women achieve orgasm through penetration alone — meaning no hands, mouth, or toys needed. More often than not, clitoral stimulation is required, or at least beneficial, when it comes to orgasming during sex.

Some believe that the G spot may be the key to women achieving orgasm during penetration. But is it real? She believed that this region could be the key to women achieving orgasm during sex. In fact, in a study , researchers attempted to find the G spot only to come up empty-handed. Instead of being its own separate spot in your vagina, the G spot is part of your clitoral network.

Plus, this region can vary from woman to woman which explains why it can often be difficult to locate. As you begin to explore your body , do what feels best to you. Like other erogenous zones , preferences can vary from person to person.

Remember that masturbation is completely normal and it can be a healthy part of any relationship. By taking time to explore your own preferences, you can use that information to instruct your partner on what you enjoy most during sex. Try positions that allow you a little more control over your movements so you can figure out what types of stimulation you enjoy most. While there are many sex positions that can help you achieve this, here are three to try. Have your partner lay on their back, then climb on top and straddle them.

This position allows you complete control over the rhythm, depth, and angle of penetration so you can focus on finding your G spot. Instead of bobbing up and down, try moving back and forth to stimulate the G spot region against your inner vaginal wall.

Doggy style is another great way to achieve deeper penetration during sex. Start on your hands and knees with your partner behind you. During penetration, try leaning down on your forearms or pushing your hips backward to change the angle until you find the position that works best for you.

A variation on the classic missionary position, this position allows for greater stimulation without the depth of penetration. While this shallow penetration that might not hit as deep, it does create a tighter feeling — and more increased friction against your G spot — which might be the perfect way to help you reach orgasm. Women are often led to believe that sex is shameful, which can make it harder to achieve orgasm and sexual satisfaction. If not? Finding what works for you can take time, so be patient.

Exploring your body and your sexual preferences is a great step in making sure you have a happy, safe, and pleasurable sex life. You should never feel ashamed of figuring out what you like. After all, everyone deserves to have great sex. When it comes to bad sex, it might just be less about you and more about what you've learned. Bad sex often stems from cultural stigmas and shame that…. Peeing during sex may be treatable with Kegel exercises and lifestyle changes, or it may be a sign of an underlying condition.

Sex is one of the most pleasurable acts… that we have the least knowledge about. But we won't get anywhere good without knowing. Take this sex ed…. Not all orgasms are explosive. Some cause tingling sensations and others don't.

It's all about the stimulation - and here's how to do it right. Many people think the clitoris is just a tiny button, but it's so much more than that. Learn how big the clitoris is and how to use it for pleasure. As fun as traditional penetrative sex can be and ooh, can it be fun , sometimes you want to switch it up from the same old positions. So, we've got…. We all know that yoga has many benefits. While you might come to the mat to find your Zen, the benefits of yoga are better than we thought.

It turns…. Baby oil is a petroleum-based mineral oil. It makes your skin soft, smells amazing, and is fairly inexpensive. While it may seem like the perfect…. Scientists know that sex is a pleasurable experience for most women. They say there's a lot going on in the body that makes sex feel good.

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Teflon g-spot

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Treatment of recurrent trigeminal neuralgia due to Teflon granuloma | SpringerLink

With high sensitivity at single molecule level, surface-enhanced Raman scattering SERS is considered as an ultrasensitive optical detection technology with broad application prospects in lots of fields. However, the complicated fabrication and unaffordable price of SERS substrate are still a roadblock on the way to be widely used in industry. The wettability of film surface modulated by laser engraving make the microarray have the ability to decrease the contact area on film surface while water evaporation.

The probing molecules i. Furthermore, the biomolecule bovine serum albumin was used to demonstrate its benefits in biological applications. Our work on this simple, cheap SERS substrate with high sensitivity has a great commercial value and plenty of application in lots of fields.

Surface-enhanced Raman scattering SERS has already aroused great interests among the public since its discovery in , because it is a promising ultrasensitive spectroscopic technique to obtain the vibrational fingerprint of characteristic molecular even in the case of super-dilute solution [ 1 , 2 , 3 , 4 , 5 ]. The huge electromagnetic field near metal surface is the dominated enhanced factor in SERS, which come from the light excited collective oscillation of free electrons called surface plasmon.

As a result, the obtained strong molecular Raman signals are mainly derived from those molecules which are located in the nano-gaps or clefts, so-called hot-spots, near metal surface where the electromagnetic field is greatly enhanced. In the previous works, the various morphology Ag or Au nanoparticles were introduced to deposit on the glass or silicon wafer in order to fabricate the SERS substrate [ 6 , 7 , 8 , 9 ].

Unfortunately, the glass, silicon wafer, and other frequently used substrates are hydrophilic, so the nanoparticles dispersed in solvent are freely dispersed on the substrates after the evaporation, resulting the distance between the nanoparticles so large that it is hard to form a larger electromagnetic field enhancement. Considering the diffusion of solute, there is a method that can be expected to succeed in concentrating the solutes in a small area, obliging the nanoparticles to be densely packed together and molecules to get into the hot-spot areas, which could achieve the goals enhancing the Raman signals of molecules.

Hence, the train of thought provides another approach to fabricate the impactful SERS substrates. Recently, based on the conception, various hydrophobic or superhydrophobic substrates have already been reported as active SERS substrates thanks to the high enhancement and improved reproducibility such as the Ag-NP decorated Si cylindrical micro-pillar array substrate, silver nanoparticles coated zinc oxide nanorods array superhydrophobic substrate, and so on [ 10 , 11 ].

The reason is that the superhydrophobic surface could effectively assemble the solutes dissolved in the solution into a small range after the water evaporation. Meanwhile, the process of fabricating those substrates is often time-consuming and complex, and those substrates usually are expensive. Normally, it takes several hours for the whole water volatilizing at room temperature, limiting the rapid detection and analysis in practical applications.

On account of those drawbacks, it is a challenge to popularize the superhydrophobic SERS substrate widely in the real world. The wettability of the surface is changed by the laser engraving technology. By designing a suitable laser engraving pattern and setting the appropriate parameters of engraving, one kind of superhydrophobic PTFE substrate with microarrays is obtained. The microarrays are hydrophobic and surrounded by the superhydrophobic area, which is generated from the laser engraving.

Similar to the well plates in biological laboratory, the developed SERS substrate with virtual wells can conveniently detect the molecules and their concentrations. All in all, a low-cost, reliable, practical, and active SERS substrate is fabricated, which can accomplish fast evaporation without affecting the detection results in this work.

Silver nitrate Shanghai, China. All chemicals were used as received without further purification or treatment. High-purity deionized water The Ag nanoparticles were synthesized according to a previous synthetic method.

In the experiment process, the EG solution was introduced to dissolve the solid or powder. Next, 0. Afterward, the gray silver colloid was obtained.

The Ag nanoparticles could be gained from the solution by centrifugation and washed with ethanol more than four times. In the end, the sample was dispersed in the water for further experimentation. Using the deionized water, the as-prepared Ag nanoparticles would be prepared into different concentrations of silver colloid and the concentrations were estimated to be 1.

The purchased original PTFE was rinsed with the water and ethanol for more than three times. Five microliters of Ag nanoparticles aqueous solution was dropped on the original PTFE and engraved PTFE respectively, and then the evaporation process in the room temperature and the images of static water contact angle were obtained using high-speed camera Phantom V 7. The value of static water contact angle was measured by one type of ruler commercial software.

After the evaporation, the Ag nanoparticles aggregated on the two surfaces were characterized by the optical microscope and the SEM, respectively. As reported, the molecules could keep the SERS activity at this temperature [ 12 ]. Five microliters of aqueous solution of the BSA with different concentrations 20, 2, 0.

The process of experiment is shown in Fig. One drop of molecular solution was dropped on the engraved PTFE covering the previously deposited Ag nanoparticles. Because of the water repellency of superhydrophobic structure, the molecular droplet would become thicker and thicker in the process of evaporation, which would enrich the molecules to the hot-spot areas at the gap between nanoparticles effectively. In Fig. Meanwhile, the contact angle images show that the static water contact angle of engraved PTFE is much bigger than the original one and the value of angle engraved PTFE is Because the evaporation processes took a long time, the evaporation profiles of the start and the end of the evaporation process were captured respectively to explain intuitively the process, shown in Fig.

For the original PTFE, during evaporation, the contact surface between the solution and the substrate surface barely decreases. By contrast, there exists a relatively obvious decrease about the contact surface for engraved PTFE as shown in Fig.

By comparing Fig. It is important to highlight that the special superhydrophobic surface the alternate distribution of hydrophobic and superhydrophobic surface does not let the solution pin to the micro- or nanoscale textures and the majority of solutes would be collected in these circles after the evaporation as shown in Additional file 1 : Figure S3.

Due to the coffee ring effect, after all the water completely evaporated, a majority of Ag nanoparticles would gather in the edge and the remaining nanoparticles would be dispersed in the middle which occupies the most of area for the original PTFE as shown in Fig. With regard to engraved PTFE, after the evaporation process in a high-temperature environment, the Ag nanoparticles would accumulate in the little circle and there was no coffee ring effect, as shown in Fig.

To reduce the time of evaporation, the sample was put into an oven. Notably, the high-temperature evaporation could make nanoparticles more compact compared to the R. A possible explanation is that rapid evaporation could make the Ag nanoparticles mass together more quickly.

However, the evaporation temperature cannot be increased too high because the structure of analyte molecules might be deteriorated at very high heating temperatures, resulting in the reduced SERS signals. Because of the rapid evaporation, it could save much time to prepare the SERS substrate.

The whole orange small boxes represent the magnified area and the white dotted line circles the finial area of Ag nanoparticles accumulation. Since sensing ability of engraving PTFE highly depends on the hydrophobicity of surface, the size of sensing area, and the initial concentration of Ag nanoparticles, we investigate these parameters by fabricating the designated PTFE substrate.

To understand more clearly how each factor affects the sensing ability, the three variables remain the same and one of them is changed.

As is shown in Fig. Due to the limitation of the laser engraving machine precision, 0. Notably, the superfluous micro- or nanostructure had an adverse effect on the enhancement of the molecular Raman signals. Compared with the contact angle in Fig. The reason is that with the laser speed increasing, the exposure time of laser point on the PTFE surface becomes shorter, causing less original PTFE ablated. As the circle is the untreated PTFE, these areas keep its original wetting property, a hydrophobic state.

When a drop of solution is dripped into the engraved PTFE substrate, the droplet tends to stay in the hydrophobic circle. Due to the repellency of water on the superhydrophobic structure beside the circle, the droplet on the engraved PTFE has a fairly large contact angle. Because the volume of droplet on the different substrates is the same, the contact angle decreases gradually.

The effect changes the surface of engraving PTFE from superhydrophobic to hydrophobic, which could affect the enrichment of the solutes, lead to the loss of solutes and finally weaken the Raman signals. With the increasing of the concentration of Ag nanoparticles, the Raman intensity dramatically rises and then tends to stabilize. The more detailed discussion was provided in the supporting information.

To save the Ag nanoparticles, the 1. To sum up, in this work, the 0. In order to realize multiple detections on the same substrate, the engraved PTFE was made into the well plates Fig. The obtained substrate could achieve detect different substance simultaneously on the same engraved PTFE. It has been already known that Ag nanoparticles evaporating on the original substrate tend to diffuse over a much larger area than that on the engraved PTFE according to Fig.

Therefore, the Ag nanoparticles, which are dispersed on the original PTFE, are far from each other even on the edge, contributing the poor Raman signals. However, in terms of the PTFE with microarrays, it could make massive nanoparticles gather together and the reduced distance between nanoparticles can enhance SERS signals.

As previously reported [ 17 , 18 , 19 ], the smaller the size of the gap is, the stronger the electromagnetic field of the gap between the two nanoparticles is. Meanwhile, due to the superhydrophobic condensation effect, the substrate could help molecules be delivered into the hot-spot areas [ 20 ]. Besides, the analogous consequence is found by the R6G spectra as shown in Fig.

The BSA with various concentrations was detected in the water, and the Raman spectra were shown in Fig. In summary, a low-cost, active, and superhydrophobic SERS substrate was fabricated by engraving the PTFE via the proper engraving parameters and pattern, which could achieve the multiple detections on one and the same substrate. By comparing the contact angle images and evaporation profiles of the original and engraved PTFE, the engraved PTFE possesses the better hydrophobicity and succeeds in decreasing the contact area on the substrate surface.

What is more, the PTFE with microarrays could contribute to collect the Ag nanoparticles into a very small area compared to the original PTFE by the obtained SEM images about aggregation of Ag nanoparticles on the two substrates, leading to produce a large number of hot-spots on the engraved PTFE surface.

Meanwhile, it is proved that the substrate could be used to detect the BSA 0. All in all, in this paper, a kind of cheap, highly sensitive and active SERS substrate possesses a big commercial value and can be used in lots of fields.

Chem Phys Lett — Moskovits M Surface-enhanced spectroscopy. Rev Modern Phys — Phys Rev Lett — Li JF Shell-isolated nanoparticle-enhanced Raman spectroscopy.

Nature Langmuir — Nanomaterials Nano Lett Nature Rev Materials Microelectron Eng —

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